1 #include "../../../include/linux/hw_breakpoint.h"
6 #include "parse-options.h"
7 #include "parse-events.h"
28 char debugfs_path[MAXPATHLEN];
30 #define CHW(x) .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_##x
31 #define CSW(x) .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_##x
33 static struct event_symbol event_symbols[] = {
34 { CHW(CPU_CYCLES), "cpu-cycles", "cycles" },
35 { CHW(INSTRUCTIONS), "instructions", "" },
36 { CHW(CACHE_REFERENCES), "cache-references", "" },
37 { CHW(CACHE_MISSES), "cache-misses", "" },
38 { CHW(BRANCH_INSTRUCTIONS), "branch-instructions", "branches" },
39 { CHW(BRANCH_MISSES), "branch-misses", "" },
40 { CHW(BUS_CYCLES), "bus-cycles", "" },
42 { CSW(CPU_CLOCK), "cpu-clock", "" },
43 { CSW(TASK_CLOCK), "task-clock", "" },
44 { CSW(PAGE_FAULTS), "page-faults", "faults" },
45 { CSW(PAGE_FAULTS_MIN), "minor-faults", "" },
46 { CSW(PAGE_FAULTS_MAJ), "major-faults", "" },
47 { CSW(CONTEXT_SWITCHES), "context-switches", "cs" },
48 { CSW(CPU_MIGRATIONS), "cpu-migrations", "migrations" },
49 { CSW(ALIGNMENT_FAULTS), "alignment-faults", "" },
50 { CSW(EMULATION_FAULTS), "emulation-faults", "" },
53 #define __PERF_EVENT_FIELD(config, name) \
54 ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT)
56 #define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW)
57 #define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG)
58 #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE)
59 #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT)
61 static const char *hw_event_names[] = {
71 static const char *sw_event_names[] = {
85 static const char *hw_cache[][MAX_ALIASES] = {
86 { "L1-dcache", "l1-d", "l1d", "L1-data", },
87 { "L1-icache", "l1-i", "l1i", "L1-instruction", },
89 { "dTLB", "d-tlb", "Data-TLB", },
90 { "iTLB", "i-tlb", "Instruction-TLB", },
91 { "branch", "branches", "bpu", "btb", "bpc", },
94 static const char *hw_cache_op[][MAX_ALIASES] = {
95 { "load", "loads", "read", },
96 { "store", "stores", "write", },
97 { "prefetch", "prefetches", "speculative-read", "speculative-load", },
100 static const char *hw_cache_result[][MAX_ALIASES] = {
101 { "refs", "Reference", "ops", "access", },
102 { "misses", "miss", },
105 #define C(x) PERF_COUNT_HW_CACHE_##x
106 #define CACHE_READ (1 << C(OP_READ))
107 #define CACHE_WRITE (1 << C(OP_WRITE))
108 #define CACHE_PREFETCH (1 << C(OP_PREFETCH))
109 #define COP(x) (1 << x)
112 * cache operartion stat
113 * L1I : Read and prefetch only
114 * ITLB and BPU : Read-only
116 static unsigned long hw_cache_stat[C(MAX)] = {
117 [C(L1D)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
118 [C(L1I)] = (CACHE_READ | CACHE_PREFETCH),
119 [C(LL)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
120 [C(DTLB)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
121 [C(ITLB)] = (CACHE_READ),
122 [C(BPU)] = (CACHE_READ),
125 #define for_each_subsystem(sys_dir, sys_dirent, sys_next) \
126 while (!readdir_r(sys_dir, &sys_dirent, &sys_next) && sys_next) \
127 if (sys_dirent.d_type == DT_DIR && \
128 (strcmp(sys_dirent.d_name, ".")) && \
129 (strcmp(sys_dirent.d_name, "..")))
131 static int tp_event_has_id(struct dirent *sys_dir, struct dirent *evt_dir)
133 char evt_path[MAXPATHLEN];
136 snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", debugfs_path,
137 sys_dir->d_name, evt_dir->d_name);
138 fd = open(evt_path, O_RDONLY);
146 #define for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) \
147 while (!readdir_r(evt_dir, &evt_dirent, &evt_next) && evt_next) \
148 if (evt_dirent.d_type == DT_DIR && \
149 (strcmp(evt_dirent.d_name, ".")) && \
150 (strcmp(evt_dirent.d_name, "..")) && \
151 (!tp_event_has_id(&sys_dirent, &evt_dirent)))
153 #define MAX_EVENT_LENGTH 512
156 struct tracepoint_path *tracepoint_id_to_path(u64 config)
158 struct tracepoint_path *path = NULL;
159 DIR *sys_dir, *evt_dir;
160 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
164 char evt_path[MAXPATHLEN];
165 char dir_path[MAXPATHLEN];
167 if (debugfs_valid_mountpoint(debugfs_path))
170 sys_dir = opendir(debugfs_path);
174 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
176 snprintf(dir_path, MAXPATHLEN, "%s/%s", debugfs_path,
178 evt_dir = opendir(dir_path);
182 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
184 snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path,
186 fd = open(evt_path, O_RDONLY);
189 if (read(fd, id_buf, sizeof(id_buf)) < 0) {
198 path = zalloc(sizeof(*path));
199 path->system = malloc(MAX_EVENT_LENGTH);
204 path->name = malloc(MAX_EVENT_LENGTH);
210 strncpy(path->system, sys_dirent.d_name,
212 strncpy(path->name, evt_dirent.d_name,
224 #define TP_PATH_LEN (MAX_EVENT_LENGTH * 2 + 1)
225 static const char *tracepoint_id_to_name(u64 config)
227 static char buf[TP_PATH_LEN];
228 struct tracepoint_path *path;
230 path = tracepoint_id_to_path(config);
232 snprintf(buf, TP_PATH_LEN, "%s:%s", path->system, path->name);
237 snprintf(buf, TP_PATH_LEN, "%s:%s", "unknown", "unknown");
242 static int is_cache_op_valid(u8 cache_type, u8 cache_op)
244 if (hw_cache_stat[cache_type] & COP(cache_op))
245 return 1; /* valid */
247 return 0; /* invalid */
250 static char *event_cache_name(u8 cache_type, u8 cache_op, u8 cache_result)
252 static char name[50];
255 sprintf(name, "%s-%s-%s", hw_cache[cache_type][0],
256 hw_cache_op[cache_op][0],
257 hw_cache_result[cache_result][0]);
259 sprintf(name, "%s-%s", hw_cache[cache_type][0],
260 hw_cache_op[cache_op][1]);
266 const char *event_type(int type)
269 case PERF_TYPE_HARDWARE:
272 case PERF_TYPE_SOFTWARE:
275 case PERF_TYPE_TRACEPOINT:
278 case PERF_TYPE_HW_CACHE:
279 return "hardware-cache";
288 const char *event_name(struct perf_evsel *evsel)
290 u64 config = evsel->attr.config;
291 int type = evsel->attr.type;
296 return __event_name(type, config);
299 const char *__event_name(int type, u64 config)
303 if (type == PERF_TYPE_RAW) {
304 sprintf(buf, "raw 0x%" PRIx64, config);
309 case PERF_TYPE_HARDWARE:
310 if (config < PERF_COUNT_HW_MAX)
311 return hw_event_names[config];
312 return "unknown-hardware";
314 case PERF_TYPE_HW_CACHE: {
315 u8 cache_type, cache_op, cache_result;
317 cache_type = (config >> 0) & 0xff;
318 if (cache_type > PERF_COUNT_HW_CACHE_MAX)
319 return "unknown-ext-hardware-cache-type";
321 cache_op = (config >> 8) & 0xff;
322 if (cache_op > PERF_COUNT_HW_CACHE_OP_MAX)
323 return "unknown-ext-hardware-cache-op";
325 cache_result = (config >> 16) & 0xff;
326 if (cache_result > PERF_COUNT_HW_CACHE_RESULT_MAX)
327 return "unknown-ext-hardware-cache-result";
329 if (!is_cache_op_valid(cache_type, cache_op))
330 return "invalid-cache";
332 return event_cache_name(cache_type, cache_op, cache_result);
335 case PERF_TYPE_SOFTWARE:
336 if (config < PERF_COUNT_SW_MAX)
337 return sw_event_names[config];
338 return "unknown-software";
340 case PERF_TYPE_TRACEPOINT:
341 return tracepoint_id_to_name(config);
350 static int parse_aliases(const char **str, const char *names[][MAX_ALIASES], int size)
355 for (i = 0; i < size; i++) {
356 for (j = 0; j < MAX_ALIASES && names[i][j]; j++) {
357 n = strlen(names[i][j]);
358 if (n > longest && !strncasecmp(*str, names[i][j], n))
370 static enum event_result
371 parse_generic_hw_event(const char **str, struct perf_event_attr *attr)
373 const char *s = *str;
374 int cache_type = -1, cache_op = -1, cache_result = -1;
376 cache_type = parse_aliases(&s, hw_cache, PERF_COUNT_HW_CACHE_MAX);
378 * No fallback - if we cannot get a clear cache type
381 if (cache_type == -1)
384 while ((cache_op == -1 || cache_result == -1) && *s == '-') {
387 if (cache_op == -1) {
388 cache_op = parse_aliases(&s, hw_cache_op,
389 PERF_COUNT_HW_CACHE_OP_MAX);
391 if (!is_cache_op_valid(cache_type, cache_op))
397 if (cache_result == -1) {
398 cache_result = parse_aliases(&s, hw_cache_result,
399 PERF_COUNT_HW_CACHE_RESULT_MAX);
400 if (cache_result >= 0)
405 * Can't parse this as a cache op or result, so back up
413 * Fall back to reads:
416 cache_op = PERF_COUNT_HW_CACHE_OP_READ;
419 * Fall back to accesses:
421 if (cache_result == -1)
422 cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS;
424 attr->config = cache_type | (cache_op << 8) | (cache_result << 16);
425 attr->type = PERF_TYPE_HW_CACHE;
431 static enum event_result
432 parse_single_tracepoint_event(char *sys_name,
433 const char *evt_name,
434 unsigned int evt_length,
435 struct perf_event_attr *attr,
438 char evt_path[MAXPATHLEN];
443 snprintf(evt_path, MAXPATHLEN, "%s/%s/%s/id", debugfs_path,
446 fd = open(evt_path, O_RDONLY);
450 if (read(fd, id_buf, sizeof(id_buf)) < 0) {
458 attr->type = PERF_TYPE_TRACEPOINT;
459 *strp += strlen(sys_name) + evt_length + 1; /* + 1 for the ':' */
461 attr->sample_type |= PERF_SAMPLE_RAW;
462 attr->sample_type |= PERF_SAMPLE_TIME;
463 attr->sample_type |= PERF_SAMPLE_CPU;
465 attr->sample_period = 1;
471 /* sys + ':' + event + ':' + flags*/
472 #define MAX_EVOPT_LEN (MAX_EVENT_LENGTH * 2 + 2 + 128)
473 static enum event_result
474 parse_multiple_tracepoint_event(const struct option *opt, char *sys_name,
475 const char *evt_exp, char *flags)
477 char evt_path[MAXPATHLEN];
478 struct dirent *evt_ent;
481 snprintf(evt_path, MAXPATHLEN, "%s/%s", debugfs_path, sys_name);
482 evt_dir = opendir(evt_path);
485 perror("Can't open event dir");
489 while ((evt_ent = readdir(evt_dir))) {
490 char event_opt[MAX_EVOPT_LEN + 1];
493 if (!strcmp(evt_ent->d_name, ".")
494 || !strcmp(evt_ent->d_name, "..")
495 || !strcmp(evt_ent->d_name, "enable")
496 || !strcmp(evt_ent->d_name, "filter"))
499 if (!strglobmatch(evt_ent->d_name, evt_exp))
502 len = snprintf(event_opt, MAX_EVOPT_LEN, "%s:%s%s%s", sys_name,
503 evt_ent->d_name, flags ? ":" : "",
508 if (parse_events(opt, event_opt, 0))
512 return EVT_HANDLED_ALL;
515 static enum event_result
516 parse_tracepoint_event(const struct option *opt, const char **strp,
517 struct perf_event_attr *attr)
519 const char *evt_name;
520 char *flags = NULL, *comma_loc;
521 char sys_name[MAX_EVENT_LENGTH];
522 unsigned int sys_length, evt_length;
524 if (debugfs_valid_mountpoint(debugfs_path))
527 evt_name = strchr(*strp, ':');
531 sys_length = evt_name - *strp;
532 if (sys_length >= MAX_EVENT_LENGTH)
535 strncpy(sys_name, *strp, sys_length);
536 sys_name[sys_length] = '\0';
537 evt_name = evt_name + 1;
539 comma_loc = strchr(evt_name, ',');
541 /* take the event name up to the comma */
542 evt_name = strndup(evt_name, comma_loc - evt_name);
544 flags = strchr(evt_name, ':');
547 evt_name = strndup(evt_name, flags - evt_name);
551 evt_length = strlen(evt_name);
552 if (evt_length >= MAX_EVENT_LENGTH)
554 if (strpbrk(evt_name, "*?")) {
555 *strp += strlen(sys_name) + evt_length + 1; /* 1 == the ':' */
556 return parse_multiple_tracepoint_event(opt, sys_name, evt_name,
559 return parse_single_tracepoint_event(sys_name, evt_name,
560 evt_length, attr, strp);
564 static enum event_result
565 parse_breakpoint_type(const char *type, const char **strp,
566 struct perf_event_attr *attr)
570 for (i = 0; i < 3; i++) {
576 attr->bp_type |= HW_BREAKPOINT_R;
579 attr->bp_type |= HW_BREAKPOINT_W;
582 attr->bp_type |= HW_BREAKPOINT_X;
588 if (!attr->bp_type) /* Default */
589 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
596 static enum event_result
597 parse_breakpoint_event(const char **strp, struct perf_event_attr *attr)
603 enum event_result err;
605 target = strchr(*strp, ':');
609 if (strncmp(*strp, "mem", target - *strp) != 0)
614 addr = strtoull(target, &endaddr, 0);
615 if (target == endaddr)
618 attr->bp_addr = addr;
621 type = strchr(target, ':');
623 /* If no type is defined, just rw as default */
625 attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W;
627 err = parse_breakpoint_type(++type, strp, attr);
628 if (err == EVT_FAILED)
633 * We should find a nice way to override the access length
634 * Provide some defaults for now
636 if (attr->bp_type == HW_BREAKPOINT_X)
637 attr->bp_len = sizeof(long);
639 attr->bp_len = HW_BREAKPOINT_LEN_4;
641 attr->type = PERF_TYPE_BREAKPOINT;
646 static int check_events(const char *str, unsigned int i)
650 n = strlen(event_symbols[i].symbol);
651 if (!strncmp(str, event_symbols[i].symbol, n))
654 n = strlen(event_symbols[i].alias);
656 if (!strncmp(str, event_symbols[i].alias, n))
661 static enum event_result
662 parse_symbolic_event(const char **strp, struct perf_event_attr *attr)
664 const char *str = *strp;
668 for (i = 0; i < ARRAY_SIZE(event_symbols); i++) {
669 n = check_events(str, i);
671 attr->type = event_symbols[i].type;
672 attr->config = event_symbols[i].config;
680 static enum event_result
681 parse_raw_event(const char **strp, struct perf_event_attr *attr)
683 const char *str = *strp;
689 n = hex2u64(str + 1, &config);
692 attr->type = PERF_TYPE_RAW;
693 attr->config = config;
699 static enum event_result
700 parse_numeric_event(const char **strp, struct perf_event_attr *attr)
702 const char *str = *strp;
707 type = strtoul(str, &endp, 0);
708 if (endp > str && type < PERF_TYPE_MAX && *endp == ':') {
710 config = strtoul(str, &endp, 0);
713 attr->config = config;
721 static enum event_result
722 parse_event_modifier(const char **strp, struct perf_event_attr *attr)
724 const char *str = *strp;
726 int eu = 0, ek = 0, eh = 0, precise = 0;
733 exclude = eu = ek = eh = 1;
735 } else if (*str == 'k') {
737 exclude = eu = ek = eh = 1;
739 } else if (*str == 'h') {
741 exclude = eu = ek = eh = 1;
743 } else if (*str == 'p') {
750 if (str >= *strp + 2) {
752 attr->exclude_user = eu;
753 attr->exclude_kernel = ek;
754 attr->exclude_hv = eh;
755 attr->precise_ip = precise;
762 * Each event can have multiple symbolic names.
763 * Symbolic names are (almost) exactly matched.
765 static enum event_result
766 parse_event_symbols(const struct option *opt, const char **str,
767 struct perf_event_attr *attr)
769 enum event_result ret;
771 ret = parse_tracepoint_event(opt, str, attr);
772 if (ret != EVT_FAILED)
775 ret = parse_raw_event(str, attr);
776 if (ret != EVT_FAILED)
779 ret = parse_numeric_event(str, attr);
780 if (ret != EVT_FAILED)
783 ret = parse_symbolic_event(str, attr);
784 if (ret != EVT_FAILED)
787 ret = parse_generic_hw_event(str, attr);
788 if (ret != EVT_FAILED)
791 ret = parse_breakpoint_event(str, attr);
792 if (ret != EVT_FAILED)
795 fprintf(stderr, "invalid or unsupported event: '%s'\n", *str);
796 fprintf(stderr, "Run 'perf list' for a list of valid events\n");
800 parse_event_modifier(str, attr);
805 int parse_events(const struct option *opt, const char *str, int unset __used)
807 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
808 struct perf_event_attr attr;
809 enum event_result ret;
814 memset(&attr, 0, sizeof(attr));
815 ret = parse_event_symbols(opt, &str, &attr);
816 if (ret == EVT_FAILED)
819 if (!(*str == 0 || *str == ',' || isspace(*str)))
822 if (ret != EVT_HANDLED_ALL) {
823 struct perf_evsel *evsel;
824 evsel = perf_evsel__new(&attr, evlist->nr_entries);
827 perf_evlist__add(evlist, evsel);
829 evsel->name = calloc(str - ostr + 1, 1);
832 strncpy(evsel->name, ostr, str - ostr);
839 while (isspace(*str))
846 int parse_filter(const struct option *opt, const char *str,
849 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
850 struct perf_evsel *last = NULL;
852 if (evlist->nr_entries > 0)
853 last = list_entry(evlist->entries.prev, struct perf_evsel, node);
855 if (last == NULL || last->attr.type != PERF_TYPE_TRACEPOINT) {
857 "-F option should follow a -e tracepoint option\n");
861 last->filter = strdup(str);
862 if (last->filter == NULL) {
863 fprintf(stderr, "not enough memory to hold filter string\n");
870 static const char * const event_type_descriptors[] = {
874 "Hardware cache event",
875 "Raw hardware event descriptor",
876 "Hardware breakpoint",
880 * Print the events from <debugfs_mount_point>/tracing/events
883 void print_tracepoint_events(const char *subsys_glob, const char *event_glob)
885 DIR *sys_dir, *evt_dir;
886 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
887 char evt_path[MAXPATHLEN];
888 char dir_path[MAXPATHLEN];
890 if (debugfs_valid_mountpoint(debugfs_path))
893 sys_dir = opendir(debugfs_path);
897 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
898 if (subsys_glob != NULL &&
899 !strglobmatch(sys_dirent.d_name, subsys_glob))
902 snprintf(dir_path, MAXPATHLEN, "%s/%s", debugfs_path,
904 evt_dir = opendir(dir_path);
908 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
909 if (event_glob != NULL &&
910 !strglobmatch(evt_dirent.d_name, event_glob))
913 snprintf(evt_path, MAXPATHLEN, "%s:%s",
914 sys_dirent.d_name, evt_dirent.d_name);
915 printf(" %-42s [%s]\n", evt_path,
916 event_type_descriptors[PERF_TYPE_TRACEPOINT]);
924 * Check whether event is in <debugfs_mount_point>/tracing/events
927 int is_valid_tracepoint(const char *event_string)
929 DIR *sys_dir, *evt_dir;
930 struct dirent *sys_next, *evt_next, sys_dirent, evt_dirent;
931 char evt_path[MAXPATHLEN];
932 char dir_path[MAXPATHLEN];
934 if (debugfs_valid_mountpoint(debugfs_path))
937 sys_dir = opendir(debugfs_path);
941 for_each_subsystem(sys_dir, sys_dirent, sys_next) {
943 snprintf(dir_path, MAXPATHLEN, "%s/%s", debugfs_path,
945 evt_dir = opendir(dir_path);
949 for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) {
950 snprintf(evt_path, MAXPATHLEN, "%s:%s",
951 sys_dirent.d_name, evt_dirent.d_name);
952 if (!strcmp(evt_path, event_string)) {
964 void print_events_type(u8 type)
966 struct event_symbol *syms = event_symbols;
970 for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
971 if (type != syms->type)
974 if (strlen(syms->alias))
975 snprintf(name, sizeof(name), "%s OR %s",
976 syms->symbol, syms->alias);
978 snprintf(name, sizeof(name), "%s", syms->symbol);
980 printf(" %-42s [%s]\n", name,
981 event_type_descriptors[type]);
985 int print_hwcache_events(const char *event_glob)
987 unsigned int type, op, i, printed = 0;
989 for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
990 for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
991 /* skip invalid cache type */
992 if (!is_cache_op_valid(type, op))
995 for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
996 char *name = event_cache_name(type, op, i);
998 if (event_glob != NULL &&
999 !strglobmatch(name, event_glob))
1002 printf(" %-42s [%s]\n", name,
1003 event_type_descriptors[PERF_TYPE_HW_CACHE]);
1013 * Print the help text for the event symbols:
1015 void print_events(const char *event_glob)
1017 struct event_symbol *syms = event_symbols;
1018 unsigned int i, type, prev_type = -1, printed = 0, ntypes_printed = 0;
1022 printf("List of pre-defined events (to be used in -e):\n");
1024 for (i = 0; i < ARRAY_SIZE(event_symbols); i++, syms++) {
1027 if (type != prev_type && printed) {
1033 if (event_glob != NULL &&
1034 !(strglobmatch(syms->symbol, event_glob) ||
1035 (syms->alias && strglobmatch(syms->alias, event_glob))))
1038 if (strlen(syms->alias))
1039 sprintf(name, "%s OR %s", syms->symbol, syms->alias);
1041 strcpy(name, syms->symbol);
1042 printf(" %-42s [%s]\n", name,
1043 event_type_descriptors[type]);
1049 if (ntypes_printed) {
1053 print_hwcache_events(event_glob);
1055 if (event_glob != NULL)
1059 printf(" %-42s [%s]\n",
1060 "rNNN (see 'perf list --help' on how to encode it)",
1061 event_type_descriptors[PERF_TYPE_RAW]);
1064 printf(" %-42s [%s]\n",
1065 "mem:<addr>[:access]",
1066 event_type_descriptors[PERF_TYPE_BREAKPOINT]);
1069 print_tracepoint_events(NULL, NULL);