tools/perf/util/evlist.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __PERF_EVLIST_H
   3 #define __PERF_EVLIST_H 1
   4
   5 #include <linux/compiler.h>
   6 #include <linux/kernel.h>
   7 #include <linux/refcount.h>
   8 #include <linux/list.h>
   9 #include <api/fd/array.h>
  10 #include <stdio.h>
  11 #include "../perf.h"
  12 #include "event.h"
  13 #include "evsel.h"
  14 #include "mmap.h"
  15 #include "util.h"
  16 #include <signal.h>
  17 #include <unistd.h>
  18
  19 struct pollfd;
  20 struct thread_map;
  21 struct cpu_map;
  22 struct record_opts;
  23
  24 #define PERF_EVLIST__HLIST_BITS 8
  25 #define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
  26
  27 struct perf_evlist {
  28         struct list_head entries;
  29         struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
  30         int              nr_entries;
  31         int              nr_groups;
  32         int              nr_mmaps;
  33         bool             enabled;
  34         bool             has_user_cpus;
  35         size_t           mmap_len;
  36         int              id_pos;
  37         int              is_pos;
  38         u64              combined_sample_type;
  39         enum bkw_mmap_state bkw_mmap_state;
  40         struct {
  41                 int     cork_fd;
  42                 pid_t   pid;
  43         } workload;
  44         struct fdarray   pollfd;
  45         struct perf_mmap *mmap;
  46         struct perf_mmap *overwrite_mmap;
  47         struct thread_map *threads;
  48         struct cpu_map    *cpus;
  49         struct perf_evsel *selected;
  50         struct events_stats stats;
  51         struct perf_env *env;
  52         u64             first_sample_time;
  53         u64             last_sample_time;
  54 };
  55
  56 struct perf_evsel_str_handler {
  57         const char *name;
  58         void       *handler;
  59 };
  60
  61 struct perf_evlist *perf_evlist__new(void);
  62 struct perf_evlist *perf_evlist__new_default(void);
  63 struct perf_evlist *perf_evlist__new_dummy(void);
  64 void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
  65                        struct thread_map *threads);
  66 void perf_evlist__exit(struct perf_evlist *evlist);
  67 void perf_evlist__delete(struct perf_evlist *evlist);
  68
  69 void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry);
  70 void perf_evlist__remove(struct perf_evlist *evlist, struct perf_evsel *evsel);
  71
  72 int __perf_evlist__add_default(struct perf_evlist *evlist, bool precise);
  73
  74 static inline int perf_evlist__add_default(struct perf_evlist *evlist)
  75 {
  76         return __perf_evlist__add_default(evlist, true);
  77 }
  78
  79 int __perf_evlist__add_default_attrs(struct perf_evlist *evlist,
  80                                      struct perf_event_attr *attrs, size_t nr_attrs);
  81
  82 #define perf_evlist__add_default_attrs(evlist, array) \
  83         __perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array))
  84
  85 int perf_evlist__add_dummy(struct perf_evlist *evlist);
  86
  87 int perf_evlist__add_newtp(struct perf_evlist *evlist,
  88                            const char *sys, const char *name, void *handler);
  89
  90 void __perf_evlist__set_sample_bit(struct perf_evlist *evlist,
  91                                    enum perf_event_sample_format bit);
  92 void __perf_evlist__reset_sample_bit(struct perf_evlist *evlist,
  93                                      enum perf_event_sample_format bit);
  94
  95 #define perf_evlist__set_sample_bit(evlist, bit) \
  96         __perf_evlist__set_sample_bit(evlist, PERF_SAMPLE_##bit)
  97
  98 #define perf_evlist__reset_sample_bit(evlist, bit) \
  99         __perf_evlist__reset_sample_bit(evlist, PERF_SAMPLE_##bit)
 100
 101 int perf_evlist__set_filter(struct perf_evlist *evlist, const char *filter);
 102 int perf_evlist__set_filter_pid(struct perf_evlist *evlist, pid_t pid);
 103 int perf_evlist__set_filter_pids(struct perf_evlist *evlist, size_t npids, pid_t *pids);
 104
 105 struct perf_evsel *
 106 perf_evlist__find_tracepoint_by_id(struct perf_evlist *evlist, int id);
 107
 108 struct perf_evsel *
 109 perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist,
 110                                      const char *name);
 111
 112 void perf_evlist__id_add(struct perf_evlist *evlist, struct perf_evsel *evsel,
 113                          int cpu, int thread, u64 id);
 114 int perf_evlist__id_add_fd(struct perf_evlist *evlist,
 115                            struct perf_evsel *evsel,
 116                            int cpu, int thread, int fd);
 117
 118 int perf_evlist__add_pollfd(struct perf_evlist *evlist, int fd);
 119 int perf_evlist__alloc_pollfd(struct perf_evlist *evlist);
 120 int perf_evlist__filter_pollfd(struct perf_evlist *evlist, short revents_and_mask);
 121
 122 int perf_evlist__poll(struct perf_evlist *evlist, int timeout);
 123
 124 struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);
 125 struct perf_evsel *perf_evlist__id2evsel_strict(struct perf_evlist *evlist,
 126                                                 u64 id);
 127
 128 struct perf_sample_id *perf_evlist__id2sid(struct perf_evlist *evlist, u64 id);
 129
 130 void perf_evlist__toggle_bkw_mmap(struct perf_evlist *evlist, enum bkw_mmap_state state);
 131
 132 union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx);
 133
 134 union perf_event *perf_evlist__mmap_read_forward(struct perf_evlist *evlist,
 135                                                  int idx);
 136 void perf_evlist__mmap_consume(struct perf_evlist *evlist, int idx);
 137
 138 int perf_evlist__open(struct perf_evlist *evlist);
 139 void perf_evlist__close(struct perf_evlist *evlist);
 140
 141 struct callchain_param;
 142
 143 void perf_evlist__set_id_pos(struct perf_evlist *evlist);
 144 bool perf_can_sample_identifier(void);
 145 bool perf_can_record_switch_events(void);
 146 bool perf_can_record_cpu_wide(void);
 147 void perf_evlist__config(struct perf_evlist *evlist, struct record_opts *opts,
 148                          struct callchain_param *callchain);
 149 int record_opts__config(struct record_opts *opts);
 150
 151 int perf_evlist__prepare_workload(struct perf_evlist *evlist,
 152                                   struct target *target,
 153                                   const char *argv[], bool pipe_output,
 154                                   void (*exec_error)(int signo, siginfo_t *info,
 155                                                      void *ucontext));
 156 int perf_evlist__start_workload(struct perf_evlist *evlist);
 157
 158 struct option;
 159
 160 int __perf_evlist__parse_mmap_pages(unsigned int *mmap_pages, const char *str);
 161 int perf_evlist__parse_mmap_pages(const struct option *opt,
 162                                   const char *str,
 163                                   int unset);
 164
 165 unsigned long perf_event_mlock_kb_in_pages(void);
 166
 167 int perf_evlist__mmap_ex(struct perf_evlist *evlist, unsigned int pages,
 168                          unsigned int auxtrace_pages,
 169                          bool auxtrace_overwrite);
 170 int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages);
 171 void perf_evlist__munmap(struct perf_evlist *evlist);
 172
 173 size_t perf_evlist__mmap_size(unsigned long pages);
 174
 175 void perf_evlist__disable(struct perf_evlist *evlist);
 176 void perf_evlist__enable(struct perf_evlist *evlist);
 177 void perf_evlist__toggle_enable(struct perf_evlist *evlist);
 178
 179 int perf_evlist__enable_event_idx(struct perf_evlist *evlist,
 180                                   struct perf_evsel *evsel, int idx);
 181
 182 void perf_evlist__set_selected(struct perf_evlist *evlist,
 183                                struct perf_evsel *evsel);
 184
 185 void perf_evlist__set_maps(struct perf_evlist *evlist, struct cpu_map *cpus,
 186                            struct thread_map *threads);
 187 int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target);
 188 int perf_evlist__apply_filters(struct perf_evlist *evlist, struct perf_evsel **err_evsel);
 189
 190 void __perf_evlist__set_leader(struct list_head *list);
 191 void perf_evlist__set_leader(struct perf_evlist *evlist);
 192
 193 u64 perf_evlist__read_format(struct perf_evlist *evlist);
 194 u64 __perf_evlist__combined_sample_type(struct perf_evlist *evlist);
 195 u64 perf_evlist__combined_sample_type(struct perf_evlist *evlist);
 196 u64 perf_evlist__combined_branch_type(struct perf_evlist *evlist);
 197 bool perf_evlist__sample_id_all(struct perf_evlist *evlist);
 198 u16 perf_evlist__id_hdr_size(struct perf_evlist *evlist);
 199
 200 int perf_evlist__parse_sample(struct perf_evlist *evlist, union perf_event *event,
 201                               struct perf_sample *sample);
 202
 203 int perf_evlist__parse_sample_timestamp(struct perf_evlist *evlist,
 204                                         union perf_event *event,
 205                                         u64 *timestamp);
 206
 207 bool perf_evlist__valid_sample_type(struct perf_evlist *evlist);
 208 bool perf_evlist__valid_sample_id_all(struct perf_evlist *evlist);
 209 bool perf_evlist__valid_read_format(struct perf_evlist *evlist);
 210
 211 void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
 212                                    struct list_head *list);
 213
 214 static inline bool perf_evlist__empty(struct perf_evlist *evlist)
 215 {
 216         return list_empty(&evlist->entries);
 217 }
 218
 219 static inline struct perf_evsel *perf_evlist__first(struct perf_evlist *evlist)
 220 {
 221         return list_entry(evlist->entries.next, struct perf_evsel, node);
 222 }
 223
 224 static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
 225 {
 226         return list_entry(evlist->entries.prev, struct perf_evsel, node);
 227 }
 228
 229 size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp);
 230
 231 int perf_evlist__strerror_open(struct perf_evlist *evlist, int err, char *buf, size_t size);
 232 int perf_evlist__strerror_mmap(struct perf_evlist *evlist, int err, char *buf, size_t size);
 233
 234 bool perf_evlist__can_select_event(struct perf_evlist *evlist, const char *str);
 235 void perf_evlist__to_front(struct perf_evlist *evlist,
 236                            struct perf_evsel *move_evsel);
 237
 238 /**
 239  * __evlist__for_each_entry - iterate thru all the evsels
 240  * @list: list_head instance to iterate
 241  * @evsel: struct evsel iterator
 242  */
 243 #define __evlist__for_each_entry(list, evsel) \
 244         list_for_each_entry(evsel, list, node)
 245
 246 /**
 247  * evlist__for_each_entry - iterate thru all the evsels
 248  * @evlist: evlist instance to iterate
 249  * @evsel: struct evsel iterator
 250  */
 251 #define evlist__for_each_entry(evlist, evsel) \
 252         __evlist__for_each_entry(&(evlist)->entries, evsel)
 253
 254 /**
 255  * __evlist__for_each_entry_continue - continue iteration thru all the evsels
 256  * @list: list_head instance to iterate
 257  * @evsel: struct evsel iterator
 258  */
 259 #define __evlist__for_each_entry_continue(list, evsel) \
 260         list_for_each_entry_continue(evsel, list, node)
 261
 262 /**
 263  * evlist__for_each_entry_continue - continue iteration thru all the evsels
 264  * @evlist: evlist instance to iterate
 265  * @evsel: struct evsel iterator
 266  */
 267 #define evlist__for_each_entry_continue(evlist, evsel) \
 268         __evlist__for_each_entry_continue(&(evlist)->entries, evsel)
 269
 270 /**
 271  * __evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
 272  * @list: list_head instance to iterate
 273  * @evsel: struct evsel iterator
 274  */
 275 #define __evlist__for_each_entry_reverse(list, evsel) \
 276         list_for_each_entry_reverse(evsel, list, node)
 277
 278 /**
 279  * evlist__for_each_entry_reverse - iterate thru all the evsels in reverse order
 280  * @evlist: evlist instance to iterate
 281  * @evsel: struct evsel iterator
 282  */
 283 #define evlist__for_each_entry_reverse(evlist, evsel) \
 284         __evlist__for_each_entry_reverse(&(evlist)->entries, evsel)
 285
 286 /**
 287  * __evlist__for_each_entry_safe - safely iterate thru all the evsels
 288  * @list: list_head instance to iterate
 289  * @tmp: struct evsel temp iterator
 290  * @evsel: struct evsel iterator
 291  */
 292 #define __evlist__for_each_entry_safe(list, tmp, evsel) \
 293         list_for_each_entry_safe(evsel, tmp, list, node)
 294
 295 /**
 296  * evlist__for_each_entry_safe - safely iterate thru all the evsels
 297  * @evlist: evlist instance to iterate
 298  * @evsel: struct evsel iterator
 299  * @tmp: struct evsel temp iterator
 300  */
 301 #define evlist__for_each_entry_safe(evlist, tmp, evsel) \
 302         __evlist__for_each_entry_safe(&(evlist)->entries, tmp, evsel)
 303
 304 void perf_evlist__set_tracking_event(struct perf_evlist *evlist,
 305                                      struct perf_evsel *tracking_evsel);
 306
 307 void perf_event_attr__set_max_precise_ip(struct perf_event_attr *attr);
 308
 309 struct perf_evsel *
 310 perf_evlist__find_evsel_by_str(struct perf_evlist *evlist, const char *str);
 311
 312 struct perf_evsel *perf_evlist__event2evsel(struct perf_evlist *evlist,
 313                                             union perf_event *event);
 314
 315 bool perf_evlist__exclude_kernel(struct perf_evlist *evlist);
 316 #endif /* __PERF_EVLIST_H */