1 #include "../../../include/linux/hw_breakpoint.h"
5 #include "parse-options.h"
6 #include "parse-events.h"
16 LIST_HEAD(evsel_list
);
31 char debugfs_path
[MAXPATHLEN
];
33 #define CHW(x) .type = PERF_TYPE_HARDWARE, .config = PERF_COUNT_HW_##x
34 #define CSW(x) .type = PERF_TYPE_SOFTWARE, .config = PERF_COUNT_SW_##x
36 static struct event_symbol event_symbols
[] = {
37 { CHW(CPU_CYCLES
), "cpu-cycles", "cycles" },
38 { CHW(INSTRUCTIONS
), "instructions", "" },
39 { CHW(CACHE_REFERENCES
), "cache-references", "" },
40 { CHW(CACHE_MISSES
), "cache-misses", "" },
41 { CHW(BRANCH_INSTRUCTIONS
), "branch-instructions", "branches" },
42 { CHW(BRANCH_MISSES
), "branch-misses", "" },
43 { CHW(BUS_CYCLES
), "bus-cycles", "" },
45 { CSW(CPU_CLOCK
), "cpu-clock", "" },
46 { CSW(TASK_CLOCK
), "task-clock", "" },
47 { CSW(PAGE_FAULTS
), "page-faults", "faults" },
48 { CSW(PAGE_FAULTS_MIN
), "minor-faults", "" },
49 { CSW(PAGE_FAULTS_MAJ
), "major-faults", "" },
50 { CSW(CONTEXT_SWITCHES
), "context-switches", "cs" },
51 { CSW(CPU_MIGRATIONS
), "cpu-migrations", "migrations" },
52 { CSW(ALIGNMENT_FAULTS
), "alignment-faults", "" },
53 { CSW(EMULATION_FAULTS
), "emulation-faults", "" },
56 #define __PERF_EVENT_FIELD(config, name) \
57 ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT)
59 #define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW)
60 #define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG)
61 #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE)
62 #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT)
64 static const char *hw_event_names
[] = {
74 static const char *sw_event_names
[] = {
88 static const char *hw_cache
[][MAX_ALIASES
] = {
89 { "L1-dcache", "l1-d", "l1d", "L1-data", },
90 { "L1-icache", "l1-i", "l1i", "L1-instruction", },
92 { "dTLB", "d-tlb", "Data-TLB", },
93 { "iTLB", "i-tlb", "Instruction-TLB", },
94 { "branch", "branches", "bpu", "btb", "bpc", },
97 static const char *hw_cache_op
[][MAX_ALIASES
] = {
98 { "load", "loads", "read", },
99 { "store", "stores", "write", },
100 { "prefetch", "prefetches", "speculative-read", "speculative-load", },
103 static const char *hw_cache_result
[][MAX_ALIASES
] = {
104 { "refs", "Reference", "ops", "access", },
105 { "misses", "miss", },
108 #define C(x) PERF_COUNT_HW_CACHE_##x
109 #define CACHE_READ (1 << C(OP_READ))
110 #define CACHE_WRITE (1 << C(OP_WRITE))
111 #define CACHE_PREFETCH (1 << C(OP_PREFETCH))
112 #define COP(x) (1 << x)
115 * cache operartion stat
116 * L1I : Read and prefetch only
117 * ITLB and BPU : Read-only
119 static unsigned long hw_cache_stat
[C(MAX
)] = {
120 [C(L1D
)] = (CACHE_READ
| CACHE_WRITE
| CACHE_PREFETCH
),
121 [C(L1I
)] = (CACHE_READ
| CACHE_PREFETCH
),
122 [C(LL
)] = (CACHE_READ
| CACHE_WRITE
| CACHE_PREFETCH
),
123 [C(DTLB
)] = (CACHE_READ
| CACHE_WRITE
| CACHE_PREFETCH
),
124 [C(ITLB
)] = (CACHE_READ
),
125 [C(BPU
)] = (CACHE_READ
),
128 #define for_each_subsystem(sys_dir, sys_dirent, sys_next) \
129 while (!readdir_r(sys_dir, &sys_dirent, &sys_next) && sys_next) \
130 if (sys_dirent.d_type == DT_DIR && \
131 (strcmp(sys_dirent.d_name, ".")) && \
132 (strcmp(sys_dirent.d_name, "..")))
134 static int tp_event_has_id(struct dirent
*sys_dir
, struct dirent
*evt_dir
)
136 char evt_path
[MAXPATHLEN
];
139 snprintf(evt_path
, MAXPATHLEN
, "%s/%s/%s/id", debugfs_path
,
140 sys_dir
->d_name
, evt_dir
->d_name
);
141 fd
= open(evt_path
, O_RDONLY
);
149 #define for_each_event(sys_dirent, evt_dir, evt_dirent, evt_next) \
150 while (!readdir_r(evt_dir, &evt_dirent, &evt_next) && evt_next) \
151 if (evt_dirent.d_type == DT_DIR && \
152 (strcmp(evt_dirent.d_name, ".")) && \
153 (strcmp(evt_dirent.d_name, "..")) && \
154 (!tp_event_has_id(&sys_dirent, &evt_dirent)))
156 #define MAX_EVENT_LENGTH 512
159 struct tracepoint_path
*tracepoint_id_to_path(u64 config
)
161 struct tracepoint_path
*path
= NULL
;
162 DIR *sys_dir
, *evt_dir
;
163 struct dirent
*sys_next
, *evt_next
, sys_dirent
, evt_dirent
;
167 char evt_path
[MAXPATHLEN
];
168 char dir_path
[MAXPATHLEN
];
170 if (debugfs_valid_mountpoint(debugfs_path
))
173 sys_dir
= opendir(debugfs_path
);
177 for_each_subsystem(sys_dir
, sys_dirent
, sys_next
) {
179 snprintf(dir_path
, MAXPATHLEN
, "%s/%s", debugfs_path
,
181 evt_dir
= opendir(dir_path
);
185 for_each_event(sys_dirent
, evt_dir
, evt_dirent
, evt_next
) {
187 snprintf(evt_path
, MAXPATHLEN
, "%s/%s/id", dir_path
,
189 fd
= open(evt_path
, O_RDONLY
);
192 if (read(fd
, id_buf
, sizeof(id_buf
)) < 0) {
201 path
= zalloc(sizeof(*path
));
202 path
->system
= malloc(MAX_EVENT_LENGTH
);
207 path
->name
= malloc(MAX_EVENT_LENGTH
);
213 strncpy(path
->system
, sys_dirent
.d_name
,
215 strncpy(path
->name
, evt_dirent
.d_name
,
227 #define TP_PATH_LEN (MAX_EVENT_LENGTH * 2 + 1)
228 static const char *tracepoint_id_to_name(u64 config
)
230 static char buf
[TP_PATH_LEN
];
231 struct tracepoint_path
*path
;
233 path
= tracepoint_id_to_path(config
);
235 snprintf(buf
, TP_PATH_LEN
, "%s:%s", path
->system
, path
->name
);
240 snprintf(buf
, TP_PATH_LEN
, "%s:%s", "unknown", "unknown");
245 static int is_cache_op_valid(u8 cache_type
, u8 cache_op
)
247 if (hw_cache_stat
[cache_type
] & COP(cache_op
))
248 return 1; /* valid */
250 return 0; /* invalid */
253 static char *event_cache_name(u8 cache_type
, u8 cache_op
, u8 cache_result
)
255 static char name
[50];
258 sprintf(name
, "%s-%s-%s", hw_cache
[cache_type
][0],
259 hw_cache_op
[cache_op
][0],
260 hw_cache_result
[cache_result
][0]);
262 sprintf(name
, "%s-%s", hw_cache
[cache_type
][0],
263 hw_cache_op
[cache_op
][1]);
269 const char *event_name(struct perf_evsel
*evsel
)
271 u64 config
= evsel
->attr
.config
;
272 int type
= evsel
->attr
.type
;
274 return __event_name(type
, config
);
277 const char *__event_name(int type
, u64 config
)
281 if (type
== PERF_TYPE_RAW
) {
282 sprintf(buf
, "raw 0x%llx", config
);
287 case PERF_TYPE_HARDWARE
:
288 if (config
< PERF_COUNT_HW_MAX
)
289 return hw_event_names
[config
];
290 return "unknown-hardware";
292 case PERF_TYPE_HW_CACHE
: {
293 u8 cache_type
, cache_op
, cache_result
;
295 cache_type
= (config
>> 0) & 0xff;
296 if (cache_type
> PERF_COUNT_HW_CACHE_MAX
)
297 return "unknown-ext-hardware-cache-type";
299 cache_op
= (config
>> 8) & 0xff;
300 if (cache_op
> PERF_COUNT_HW_CACHE_OP_MAX
)
301 return "unknown-ext-hardware-cache-op";
303 cache_result
= (config
>> 16) & 0xff;
304 if (cache_result
> PERF_COUNT_HW_CACHE_RESULT_MAX
)
305 return "unknown-ext-hardware-cache-result";
307 if (!is_cache_op_valid(cache_type
, cache_op
))
308 return "invalid-cache";
310 return event_cache_name(cache_type
, cache_op
, cache_result
);
313 case PERF_TYPE_SOFTWARE
:
314 if (config
< PERF_COUNT_SW_MAX
)
315 return sw_event_names
[config
];
316 return "unknown-software";
318 case PERF_TYPE_TRACEPOINT
:
319 return tracepoint_id_to_name(config
);
328 static int parse_aliases(const char **str
, const char *names
[][MAX_ALIASES
], int size
)
333 for (i
= 0; i
< size
; i
++) {
334 for (j
= 0; j
< MAX_ALIASES
&& names
[i
][j
]; j
++) {
335 n
= strlen(names
[i
][j
]);
336 if (n
> longest
&& !strncasecmp(*str
, names
[i
][j
], n
))
348 static enum event_result
349 parse_generic_hw_event(const char **str
, struct perf_event_attr
*attr
)
351 const char *s
= *str
;
352 int cache_type
= -1, cache_op
= -1, cache_result
= -1;
354 cache_type
= parse_aliases(&s
, hw_cache
, PERF_COUNT_HW_CACHE_MAX
);
356 * No fallback - if we cannot get a clear cache type
359 if (cache_type
== -1)
362 while ((cache_op
== -1 || cache_result
== -1) && *s
== '-') {
365 if (cache_op
== -1) {
366 cache_op
= parse_aliases(&s
, hw_cache_op
,
367 PERF_COUNT_HW_CACHE_OP_MAX
);
369 if (!is_cache_op_valid(cache_type
, cache_op
))
375 if (cache_result
== -1) {
376 cache_result
= parse_aliases(&s
, hw_cache_result
,
377 PERF_COUNT_HW_CACHE_RESULT_MAX
);
378 if (cache_result
>= 0)
383 * Can't parse this as a cache op or result, so back up
391 * Fall back to reads:
394 cache_op
= PERF_COUNT_HW_CACHE_OP_READ
;
397 * Fall back to accesses:
399 if (cache_result
== -1)
400 cache_result
= PERF_COUNT_HW_CACHE_RESULT_ACCESS
;
402 attr
->config
= cache_type
| (cache_op
<< 8) | (cache_result
<< 16);
403 attr
->type
= PERF_TYPE_HW_CACHE
;
409 static enum event_result
410 parse_single_tracepoint_event(char *sys_name
,
411 const char *evt_name
,
412 unsigned int evt_length
,
413 struct perf_event_attr
*attr
,
416 char evt_path
[MAXPATHLEN
];
421 snprintf(evt_path
, MAXPATHLEN
, "%s/%s/%s/id", debugfs_path
,
424 fd
= open(evt_path
, O_RDONLY
);
428 if (read(fd
, id_buf
, sizeof(id_buf
)) < 0) {
436 attr
->type
= PERF_TYPE_TRACEPOINT
;
437 *strp
+= strlen(sys_name
) + evt_length
+ 1; /* + 1 for the ':' */
439 attr
->sample_type
|= PERF_SAMPLE_RAW
;
440 attr
->sample_type
|= PERF_SAMPLE_TIME
;
441 attr
->sample_type
|= PERF_SAMPLE_CPU
;
443 attr
->sample_period
= 1;
449 /* sys + ':' + event + ':' + flags*/
450 #define MAX_EVOPT_LEN (MAX_EVENT_LENGTH * 2 + 2 + 128)
451 static enum event_result
452 parse_multiple_tracepoint_event(char *sys_name
, const char *evt_exp
,
455 char evt_path
[MAXPATHLEN
];
456 struct dirent
*evt_ent
;
459 snprintf(evt_path
, MAXPATHLEN
, "%s/%s", debugfs_path
, sys_name
);
460 evt_dir
= opendir(evt_path
);
463 perror("Can't open event dir");
467 while ((evt_ent
= readdir(evt_dir
))) {
468 char event_opt
[MAX_EVOPT_LEN
+ 1];
471 if (!strcmp(evt_ent
->d_name
, ".")
472 || !strcmp(evt_ent
->d_name
, "..")
473 || !strcmp(evt_ent
->d_name
, "enable")
474 || !strcmp(evt_ent
->d_name
, "filter"))
477 if (!strglobmatch(evt_ent
->d_name
, evt_exp
))
480 len
= snprintf(event_opt
, MAX_EVOPT_LEN
, "%s:%s%s%s", sys_name
,
481 evt_ent
->d_name
, flags
? ":" : "",
486 if (parse_events(NULL
, event_opt
, 0))
490 return EVT_HANDLED_ALL
;
493 static enum event_result
parse_tracepoint_event(const char **strp
,
494 struct perf_event_attr
*attr
)
496 const char *evt_name
;
497 char *flags
= NULL
, *comma_loc
;
498 char sys_name
[MAX_EVENT_LENGTH
];
499 unsigned int sys_length
, evt_length
;
501 if (debugfs_valid_mountpoint(debugfs_path
))
504 evt_name
= strchr(*strp
, ':');
508 sys_length
= evt_name
- *strp
;
509 if (sys_length
>= MAX_EVENT_LENGTH
)
512 strncpy(sys_name
, *strp
, sys_length
);
513 sys_name
[sys_length
] = '\0';
514 evt_name
= evt_name
+ 1;
516 comma_loc
= strchr(evt_name
, ',');
518 /* take the event name up to the comma */
519 evt_name
= strndup(evt_name
, comma_loc
- evt_name
);
521 flags
= strchr(evt_name
, ':');
524 evt_name
= strndup(evt_name
, flags
- evt_name
);
528 evt_length
= strlen(evt_name
);
529 if (evt_length
>= MAX_EVENT_LENGTH
)
531 if (strpbrk(evt_name
, "*?")) {
532 *strp
+= strlen(sys_name
) + evt_length
+ 1; /* 1 == the ':' */
533 return parse_multiple_tracepoint_event(sys_name
, evt_name
,
536 return parse_single_tracepoint_event(sys_name
, evt_name
,
537 evt_length
, attr
, strp
);
541 static enum event_result
542 parse_breakpoint_type(const char *type
, const char **strp
,
543 struct perf_event_attr
*attr
)
547 for (i
= 0; i
< 3; i
++) {
553 attr
->bp_type
|= HW_BREAKPOINT_R
;
556 attr
->bp_type
|= HW_BREAKPOINT_W
;
559 attr
->bp_type
|= HW_BREAKPOINT_X
;
565 if (!attr
->bp_type
) /* Default */
566 attr
->bp_type
= HW_BREAKPOINT_R
| HW_BREAKPOINT_W
;
573 static enum event_result
574 parse_breakpoint_event(const char **strp
, struct perf_event_attr
*attr
)
580 enum event_result err
;
582 target
= strchr(*strp
, ':');
586 if (strncmp(*strp
, "mem", target
- *strp
) != 0)
591 addr
= strtoull(target
, &endaddr
, 0);
592 if (target
== endaddr
)
595 attr
->bp_addr
= addr
;
598 type
= strchr(target
, ':');
600 /* If no type is defined, just rw as default */
602 attr
->bp_type
= HW_BREAKPOINT_R
| HW_BREAKPOINT_W
;
604 err
= parse_breakpoint_type(++type
, strp
, attr
);
605 if (err
== EVT_FAILED
)
610 * We should find a nice way to override the access length
611 * Provide some defaults for now
613 if (attr
->bp_type
== HW_BREAKPOINT_X
)
614 attr
->bp_len
= sizeof(long);
616 attr
->bp_len
= HW_BREAKPOINT_LEN_4
;
618 attr
->type
= PERF_TYPE_BREAKPOINT
;
623 static int check_events(const char *str
, unsigned int i
)
627 n
= strlen(event_symbols
[i
].symbol
);
628 if (!strncmp(str
, event_symbols
[i
].symbol
, n
))
631 n
= strlen(event_symbols
[i
].alias
);
633 if (!strncmp(str
, event_symbols
[i
].alias
, n
))
638 static enum event_result
639 parse_symbolic_event(const char **strp
, struct perf_event_attr
*attr
)
641 const char *str
= *strp
;
645 for (i
= 0; i
< ARRAY_SIZE(event_symbols
); i
++) {
646 n
= check_events(str
, i
);
648 attr
->type
= event_symbols
[i
].type
;
649 attr
->config
= event_symbols
[i
].config
;
657 static enum event_result
658 parse_raw_event(const char **strp
, struct perf_event_attr
*attr
)
660 const char *str
= *strp
;
666 n
= hex2u64(str
+ 1, &config
);
669 attr
->type
= PERF_TYPE_RAW
;
670 attr
->config
= config
;
676 static enum event_result
677 parse_numeric_event(const char **strp
, struct perf_event_attr
*attr
)
679 const char *str
= *strp
;
684 type
= strtoul(str
, &endp
, 0);
685 if (endp
> str
&& type
< PERF_TYPE_MAX
&& *endp
== ':') {
687 config
= strtoul(str
, &endp
, 0);
690 attr
->config
= config
;
698 static enum event_result
699 parse_event_modifier(const char **strp
, struct perf_event_attr
*attr
)
701 const char *str
= *strp
;
703 int eu
= 0, ek
= 0, eh
= 0, precise
= 0;
710 exclude
= eu
= ek
= eh
= 1;
712 } else if (*str
== 'k') {
714 exclude
= eu
= ek
= eh
= 1;
716 } else if (*str
== 'h') {
718 exclude
= eu
= ek
= eh
= 1;
720 } else if (*str
== 'p') {
727 if (str
>= *strp
+ 2) {
729 attr
->exclude_user
= eu
;
730 attr
->exclude_kernel
= ek
;
731 attr
->exclude_hv
= eh
;
732 attr
->precise_ip
= precise
;
739 * Each event can have multiple symbolic names.
740 * Symbolic names are (almost) exactly matched.
742 static enum event_result
743 parse_event_symbols(const char **str
, struct perf_event_attr
*attr
)
745 enum event_result ret
;
747 ret
= parse_tracepoint_event(str
, attr
);
748 if (ret
!= EVT_FAILED
)
751 ret
= parse_raw_event(str
, attr
);
752 if (ret
!= EVT_FAILED
)
755 ret
= parse_numeric_event(str
, attr
);
756 if (ret
!= EVT_FAILED
)
759 ret
= parse_symbolic_event(str
, attr
);
760 if (ret
!= EVT_FAILED
)
763 ret
= parse_generic_hw_event(str
, attr
);
764 if (ret
!= EVT_FAILED
)
767 ret
= parse_breakpoint_event(str
, attr
);
768 if (ret
!= EVT_FAILED
)
771 fprintf(stderr
, "invalid or unsupported event: '%s'\n", *str
);
772 fprintf(stderr
, "Run 'perf list' for a list of valid events\n");
776 parse_event_modifier(str
, attr
);
781 int parse_events(const struct option
*opt __used
, const char *str
, int unset __used
)
783 struct perf_event_attr attr
;
784 enum event_result ret
;
787 memset(&attr
, 0, sizeof(attr
));
788 ret
= parse_event_symbols(&str
, &attr
);
789 if (ret
== EVT_FAILED
)
792 if (!(*str
== 0 || *str
== ',' || isspace(*str
)))
795 if (ret
!= EVT_HANDLED_ALL
) {
796 struct perf_evsel
*evsel
;
797 evsel
= perf_evsel__new(&attr
,
801 list_add_tail(&evsel
->node
, &evsel_list
);
809 while (isspace(*str
))
816 int parse_filter(const struct option
*opt __used
, const char *str
,
819 struct perf_evsel
*last
= NULL
;
821 if (!list_empty(&evsel_list
))
822 last
= list_entry(evsel_list
.prev
, struct perf_evsel
, node
);
824 if (last
== NULL
|| last
->attr
.type
!= PERF_TYPE_TRACEPOINT
) {
826 "-F option should follow a -e tracepoint option\n");
830 last
->filter
= strdup(str
);
831 if (last
->filter
== NULL
) {
832 fprintf(stderr
, "not enough memory to hold filter string\n");
839 static const char * const event_type_descriptors
[] = {
843 "Hardware cache event",
844 "Raw hardware event descriptor",
845 "Hardware breakpoint",
849 * Print the events from <debugfs_mount_point>/tracing/events
852 static void print_tracepoint_events(void)
854 DIR *sys_dir
, *evt_dir
;
855 struct dirent
*sys_next
, *evt_next
, sys_dirent
, evt_dirent
;
856 char evt_path
[MAXPATHLEN
];
857 char dir_path
[MAXPATHLEN
];
859 if (debugfs_valid_mountpoint(debugfs_path
))
862 sys_dir
= opendir(debugfs_path
);
866 for_each_subsystem(sys_dir
, sys_dirent
, sys_next
) {
868 snprintf(dir_path
, MAXPATHLEN
, "%s/%s", debugfs_path
,
870 evt_dir
= opendir(dir_path
);
874 for_each_event(sys_dirent
, evt_dir
, evt_dirent
, evt_next
) {
875 snprintf(evt_path
, MAXPATHLEN
, "%s:%s",
876 sys_dirent
.d_name
, evt_dirent
.d_name
);
877 printf(" %-42s [%s]\n", evt_path
,
878 event_type_descriptors
[PERF_TYPE_TRACEPOINT
]);
886 * Check whether event is in <debugfs_mount_point>/tracing/events
889 int is_valid_tracepoint(const char *event_string
)
891 DIR *sys_dir
, *evt_dir
;
892 struct dirent
*sys_next
, *evt_next
, sys_dirent
, evt_dirent
;
893 char evt_path
[MAXPATHLEN
];
894 char dir_path
[MAXPATHLEN
];
896 if (debugfs_valid_mountpoint(debugfs_path
))
899 sys_dir
= opendir(debugfs_path
);
903 for_each_subsystem(sys_dir
, sys_dirent
, sys_next
) {
905 snprintf(dir_path
, MAXPATHLEN
, "%s/%s", debugfs_path
,
907 evt_dir
= opendir(dir_path
);
911 for_each_event(sys_dirent
, evt_dir
, evt_dirent
, evt_next
) {
912 snprintf(evt_path
, MAXPATHLEN
, "%s:%s",
913 sys_dirent
.d_name
, evt_dirent
.d_name
);
914 if (!strcmp(evt_path
, event_string
)) {
927 * Print the help text for the event symbols:
929 void print_events(void)
931 struct event_symbol
*syms
= event_symbols
;
932 unsigned int i
, type
, op
, prev_type
= -1;
936 printf("List of pre-defined events (to be used in -e):\n");
938 for (i
= 0; i
< ARRAY_SIZE(event_symbols
); i
++, syms
++) {
941 if (type
!= prev_type
)
944 if (strlen(syms
->alias
))
945 sprintf(name
, "%s OR %s", syms
->symbol
, syms
->alias
);
947 strcpy(name
, syms
->symbol
);
948 printf(" %-42s [%s]\n", name
,
949 event_type_descriptors
[type
]);
955 for (type
= 0; type
< PERF_COUNT_HW_CACHE_MAX
; type
++) {
956 for (op
= 0; op
< PERF_COUNT_HW_CACHE_OP_MAX
; op
++) {
957 /* skip invalid cache type */
958 if (!is_cache_op_valid(type
, op
))
961 for (i
= 0; i
< PERF_COUNT_HW_CACHE_RESULT_MAX
; i
++) {
962 printf(" %-42s [%s]\n",
963 event_cache_name(type
, op
, i
),
964 event_type_descriptors
[PERF_TYPE_HW_CACHE
]);
970 printf(" %-42s [%s]\n",
971 "rNNN (see 'perf list --help' on how to encode it)",
972 event_type_descriptors
[PERF_TYPE_RAW
]);
975 printf(" %-42s [%s]\n",
976 "mem:<addr>[:access]",
977 event_type_descriptors
[PERF_TYPE_BREAKPOINT
]);
980 print_tracepoint_events();
985 int perf_evsel_list__create_default(void)
987 struct perf_evsel
*evsel
;
988 struct perf_event_attr attr
;
990 memset(&attr
, 0, sizeof(attr
));
991 attr
.type
= PERF_TYPE_HARDWARE
;
992 attr
.config
= PERF_COUNT_HW_CPU_CYCLES
;
994 evsel
= perf_evsel__new(&attr
, 0);
999 list_add(&evsel
->node
, &evsel_list
);
1004 void perf_evsel_list__delete(void)
1006 struct perf_evsel
*pos
, *n
;
1008 list_for_each_entry_safe(pos
, n
, &evsel_list
, node
) {
1009 list_del_init(&pos
->node
);
1010 perf_evsel__delete(pos
);