tools/perf/util/event.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __PERF_RECORD_H
   3 #define __PERF_RECORD_H
   4 /*
   5  * The linux/stddef.h isn't need here, but is needed for __always_inline used
   6  * in files included from uapi/linux/perf_event.h such as
   7  * /usr/include/linux/swab.h and /usr/include/linux/byteorder/little_endian.h,
   8  * detected in at least musl libc, used in Alpine Linux. -acme
   9  */
  10 #include <stdio.h>
  11 #include <linux/stddef.h>
  12 #include <perf/event.h>
  13 #include <linux/types.h>
  14
  15 #include "perf_regs.h"
  16
  17 struct dso;
  18 struct machine;
  19 struct perf_event_attr;
  20
  21 #ifdef __LP64__
  22 /*
  23  * /usr/include/inttypes.h uses just 'lu' for PRIu64, but we end up defining
  24  * __u64 as long long unsigned int, and then -Werror=format= kicks in and
  25  * complains of the mismatched types, so use these two special extra PRI
  26  * macros to overcome that.
  27  */
  28 #define PRI_lu64 "l" PRIu64
  29 #define PRI_lx64 "l" PRIx64
  30 #define PRI_ld64 "l" PRId64
  31 #else
  32 #define PRI_lu64 PRIu64
  33 #define PRI_lx64 PRIx64
  34 #define PRI_ld64 PRId64
  35 #endif
  36
  37 #define PERF_SAMPLE_MASK                                \
  38         (PERF_SAMPLE_IP | PERF_SAMPLE_TID |             \
  39          PERF_SAMPLE_TIME | PERF_SAMPLE_ADDR |          \
  40         PERF_SAMPLE_ID | PERF_SAMPLE_STREAM_ID |        \
  41          PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD |         \
  42          PERF_SAMPLE_IDENTIFIER)
  43
  44 /* perf sample has 16 bits size limit */
  45 #define PERF_SAMPLE_MAX_SIZE (1 << 16)
  46
  47 struct regs_dump {
  48         u64 abi;
  49         u64 mask;
  50         u64 *regs;
  51
  52         /* Cached values/mask filled by first register access. */
  53         u64 cache_regs[PERF_REGS_MAX];
  54         u64 cache_mask;
  55 };
  56
  57 struct stack_dump {
  58         u16 offset;
  59         u64 size;
  60         char *data;
  61 };
  62
  63 struct sample_read_value {
  64         u64 value;
  65         u64 id;
  66 };
  67
  68 struct sample_read {
  69         u64 time_enabled;
  70         u64 time_running;
  71         union {
  72                 struct {
  73                         u64 nr;
  74                         struct sample_read_value *values;
  75                 } group;
  76                 struct sample_read_value one;
  77         };
  78 };
  79
  80 struct ip_callchain {
  81         u64 nr;
  82         u64 ips[];
  83 };
  84
  85 struct branch_stack;
  86
  87 enum {
  88         PERF_IP_FLAG_BRANCH             = 1ULL << 0,
  89         PERF_IP_FLAG_CALL               = 1ULL << 1,
  90         PERF_IP_FLAG_RETURN             = 1ULL << 2,
  91         PERF_IP_FLAG_CONDITIONAL        = 1ULL << 3,
  92         PERF_IP_FLAG_SYSCALLRET         = 1ULL << 4,
  93         PERF_IP_FLAG_ASYNC              = 1ULL << 5,
  94         PERF_IP_FLAG_INTERRUPT          = 1ULL << 6,
  95         PERF_IP_FLAG_TX_ABORT           = 1ULL << 7,
  96         PERF_IP_FLAG_TRACE_BEGIN        = 1ULL << 8,
  97         PERF_IP_FLAG_TRACE_END          = 1ULL << 9,
  98         PERF_IP_FLAG_IN_TX              = 1ULL << 10,
  99 };
 100
 101 #define PERF_IP_FLAG_CHARS "bcrosyiABEx"
 102
 103 #define PERF_BRANCH_MASK                (\
 104         PERF_IP_FLAG_BRANCH             |\
 105         PERF_IP_FLAG_CALL               |\
 106         PERF_IP_FLAG_RETURN             |\
 107         PERF_IP_FLAG_CONDITIONAL        |\
 108         PERF_IP_FLAG_SYSCALLRET         |\
 109         PERF_IP_FLAG_ASYNC              |\
 110         PERF_IP_FLAG_INTERRUPT          |\
 111         PERF_IP_FLAG_TX_ABORT           |\
 112         PERF_IP_FLAG_TRACE_BEGIN        |\
 113         PERF_IP_FLAG_TRACE_END)
 114
 115 #define MAX_INSN 16
 116
 117 struct aux_sample {
 118         u64 size;
 119         void *data;
 120 };
 121
 122 struct perf_sample {
 123         u64 ip;
 124         u32 pid, tid;
 125         u64 time;
 126         u64 addr;
 127         u64 id;
 128         u64 stream_id;
 129         u64 period;
 130         u64 weight;
 131         u64 transaction;
 132         u64 insn_cnt;
 133         u64 cyc_cnt;
 134         u32 cpu;
 135         u32 raw_size;
 136         u64 data_src;
 137         u64 phys_addr;
 138         u64 cgroup;
 139         u32 flags;
 140         u16 insn_len;
 141         u8  cpumode;
 142         u16 misc;
 143         bool no_hw_idx;         /* No hw_idx collected in branch_stack */
 144         char insn[MAX_INSN];
 145         void *raw_data;
 146         struct ip_callchain *callchain;
 147         struct branch_stack *branch_stack;
 148         struct regs_dump  user_regs;
 149         struct regs_dump  intr_regs;
 150         struct stack_dump user_stack;
 151         struct sample_read read;
 152         struct aux_sample aux_sample;
 153 };
 154
 155 #define PERF_MEM_DATA_SRC_NONE \
 156         (PERF_MEM_S(OP, NA) |\
 157          PERF_MEM_S(LVL, NA) |\
 158          PERF_MEM_S(SNOOP, NA) |\
 159          PERF_MEM_S(LOCK, NA) |\
 160          PERF_MEM_S(TLB, NA))
 161
 162 /* Attribute type for custom synthesized events */
 163 #define PERF_TYPE_SYNTH         (INT_MAX + 1U)
 164
 165 /* Attribute config for custom synthesized events */
 166 enum perf_synth_id {
 167         PERF_SYNTH_INTEL_PTWRITE,
 168         PERF_SYNTH_INTEL_MWAIT,
 169         PERF_SYNTH_INTEL_PWRE,
 170         PERF_SYNTH_INTEL_EXSTOP,
 171         PERF_SYNTH_INTEL_PWRX,
 172         PERF_SYNTH_INTEL_CBR,
 173 };
 174
 175 /*
 176  * Raw data formats for synthesized events. Note that 4 bytes of padding are
 177  * present to match the 'size' member of PERF_SAMPLE_RAW data which is always
 178  * 8-byte aligned. That means we must dereference raw_data with an offset of 4.
 179  * Refer perf_sample__synth_ptr() and perf_synth__raw_data().  It also means the
 180  * structure sizes are 4 bytes bigger than the raw_size, refer
 181  * perf_synth__raw_size().
 182  */
 183
 184 struct perf_synth_intel_ptwrite {
 185         u32 padding;
 186         union {
 187                 struct {
 188                         u32     ip              :  1,
 189                                 reserved        : 31;
 190                 };
 191                 u32     flags;
 192         };
 193         u64     payload;
 194 };
 195
 196 struct perf_synth_intel_mwait {
 197         u32 padding;
 198         u32 reserved;
 199         union {
 200                 struct {
 201                         u64     hints           :  8,
 202                                 reserved1       : 24,
 203                                 extensions      :  2,
 204                                 reserved2       : 30;
 205                 };
 206                 u64     payload;
 207         };
 208 };
 209
 210 struct perf_synth_intel_pwre {
 211         u32 padding;
 212         u32 reserved;
 213         union {
 214                 struct {
 215                         u64     reserved1       :  7,
 216                                 hw              :  1,
 217                                 subcstate       :  4,
 218                                 cstate          :  4,
 219                                 reserved2       : 48;
 220                 };
 221                 u64     payload;
 222         };
 223 };
 224
 225 struct perf_synth_intel_exstop {
 226         u32 padding;
 227         union {
 228                 struct {
 229                         u32     ip              :  1,
 230                                 reserved        : 31;
 231                 };
 232                 u32     flags;
 233         };
 234 };
 235
 236 struct perf_synth_intel_pwrx {
 237         u32 padding;
 238         u32 reserved;
 239         union {
 240                 struct {
 241                         u64     deepest_cstate  :  4,
 242                                 last_cstate     :  4,
 243                                 wake_reason     :  4,
 244                                 reserved1       : 52;
 245                 };
 246                 u64     payload;
 247         };
 248 };
 249
 250 struct perf_synth_intel_cbr {
 251         u32 padding;
 252         union {
 253                 struct {
 254                         u32     cbr             :  8,
 255                                 reserved1       :  8,
 256                                 max_nonturbo    :  8,
 257                                 reserved2       :  8;
 258                 };
 259                 u32     flags;
 260         };
 261         u32 freq;
 262         u32 reserved3;
 263 };
 264
 265 /*
 266  * raw_data is always 4 bytes from an 8-byte boundary, so subtract 4 to get
 267  * 8-byte alignment.
 268  */
 269 static inline void *perf_sample__synth_ptr(struct perf_sample *sample)
 270 {
 271         return sample->raw_data - 4;
 272 }
 273
 274 static inline void *perf_synth__raw_data(void *p)
 275 {
 276         return p + 4;
 277 }
 278
 279 #define perf_synth__raw_size(d) (sizeof(d) - 4)
 280
 281 #define perf_sample__bad_synth_size(s, d) ((s)->raw_size < sizeof(d) - 4)
 282
 283 enum {
 284         PERF_STAT_ROUND_TYPE__INTERVAL  = 0,
 285         PERF_STAT_ROUND_TYPE__FINAL     = 1,
 286 };
 287
 288 void perf_event__print_totals(void);
 289
 290 struct perf_cpu_map;
 291 struct perf_record_stat_config;
 292 struct perf_stat_config;
 293 struct perf_tool;
 294
 295 void perf_event__read_stat_config(struct perf_stat_config *config,
 296                                   struct perf_record_stat_config *event);
 297
 298 int perf_event__process_comm(struct perf_tool *tool,
 299                              union perf_event *event,
 300                              struct perf_sample *sample,
 301                              struct machine *machine);
 302 int perf_event__process_lost(struct perf_tool *tool,
 303                              union perf_event *event,
 304                              struct perf_sample *sample,
 305                              struct machine *machine);
 306 int perf_event__process_lost_samples(struct perf_tool *tool,
 307                                      union perf_event *event,
 308                                      struct perf_sample *sample,
 309                                      struct machine *machine);
 310 int perf_event__process_aux(struct perf_tool *tool,
 311                             union perf_event *event,
 312                             struct perf_sample *sample,
 313                             struct machine *machine);
 314 int perf_event__process_itrace_start(struct perf_tool *tool,
 315                                      union perf_event *event,
 316                                      struct perf_sample *sample,
 317                                      struct machine *machine);
 318 int perf_event__process_switch(struct perf_tool *tool,
 319                                union perf_event *event,
 320                                struct perf_sample *sample,
 321                                struct machine *machine);
 322 int perf_event__process_namespaces(struct perf_tool *tool,
 323                                    union perf_event *event,
 324                                    struct perf_sample *sample,
 325                                    struct machine *machine);
 326 int perf_event__process_cgroup(struct perf_tool *tool,
 327                                union perf_event *event,
 328                                struct perf_sample *sample,
 329                                struct machine *machine);
 330 int perf_event__process_mmap(struct perf_tool *tool,
 331                              union perf_event *event,
 332                              struct perf_sample *sample,
 333                              struct machine *machine);
 334 int perf_event__process_mmap2(struct perf_tool *tool,
 335                              union perf_event *event,
 336                              struct perf_sample *sample,
 337                              struct machine *machine);
 338 int perf_event__process_fork(struct perf_tool *tool,
 339                              union perf_event *event,
 340                              struct perf_sample *sample,
 341                              struct machine *machine);
 342 int perf_event__process_exit(struct perf_tool *tool,
 343                              union perf_event *event,
 344                              struct perf_sample *sample,
 345                              struct machine *machine);
 346 int perf_event__process_ksymbol(struct perf_tool *tool,
 347                                 union perf_event *event,
 348                                 struct perf_sample *sample,
 349                                 struct machine *machine);
 350 int perf_event__process_bpf(struct perf_tool *tool,
 351                             union perf_event *event,
 352                             struct perf_sample *sample,
 353                             struct machine *machine);
 354 int perf_event__process_text_poke(struct perf_tool *tool,
 355                                   union perf_event *event,
 356                                   struct perf_sample *sample,
 357                                   struct machine *machine);
 358 int perf_event__process(struct perf_tool *tool,
 359                         union perf_event *event,
 360                         struct perf_sample *sample,
 361                         struct machine *machine);
 362
 363 struct addr_location;
 364
 365 int machine__resolve(struct machine *machine, struct addr_location *al,
 366                      struct perf_sample *sample);
 367
 368 void addr_location__put(struct addr_location *al);
 369
 370 struct thread;
 371
 372 bool is_bts_event(struct perf_event_attr *attr);
 373 bool sample_addr_correlates_sym(struct perf_event_attr *attr);
 374 void thread__resolve(struct thread *thread, struct addr_location *al,
 375                      struct perf_sample *sample);
 376
 377 const char *perf_event__name(unsigned int id);
 378
 379 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp);
 380 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp);
 381 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp);
 382 size_t perf_event__fprintf_task(union perf_event *event, FILE *fp);
 383 size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp);
 384 size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp);
 385 size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp);
 386 size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp);
 387 size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp);
 388 size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp);
 389 size_t perf_event__fprintf_cgroup(union perf_event *event, FILE *fp);
 390 size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp);
 391 size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp);
 392 size_t perf_event__fprintf_text_poke(union perf_event *event, struct machine *machine,FILE *fp);
 393 size_t perf_event__fprintf(union perf_event *event, struct machine *machine, FILE *fp);
 394
 395 int kallsyms__get_function_start(const char *kallsyms_filename,
 396                                  const char *symbol_name, u64 *addr);
 397
 398 void *cpu_map_data__alloc(struct perf_cpu_map *map, size_t *size, u16 *type, int *max);
 399 void  cpu_map_data__synthesize(struct perf_record_cpu_map_data *data, struct perf_cpu_map *map,
 400                                u16 type, int max);
 401
 402 void event_attr_init(struct perf_event_attr *attr);
 403
 404 int perf_event_paranoid(void);
 405 bool perf_event_paranoid_check(int max_level);
 406
 407 extern int sysctl_perf_event_max_stack;
 408 extern int sysctl_perf_event_max_contexts_per_stack;
 409 extern unsigned int proc_map_timeout;
 410
 411 #endif /* __PERF_RECORD_H */