tools/perf/util/event.c

   1 #include <errno.h>
   2 #include <fcntl.h>
   3 #include <inttypes.h>
   4 #include <linux/kernel.h>
   5 #include <linux/types.h>
   6 #include <perf/cpumap.h>
   7 #include <sys/types.h>
   8 #include <sys/stat.h>
   9 #include <unistd.h>
  10 #include <uapi/linux/mman.h> /* To get things like MAP_HUGETLB even on older libc headers */
  11 #include <linux/perf_event.h>
  12 #include <linux/zalloc.h>
  13 #include "cpumap.h"
  14 #include "dso.h"
  15 #include "event.h"
  16 #include "debug.h"
  17 #include "hist.h"
  18 #include "machine.h"
  19 #include "sort.h"
  20 #include "string2.h"
  21 #include "strlist.h"
  22 #include "thread.h"
  23 #include "thread_map.h"
  24 #include "time-utils.h"
  25 #include <linux/ctype.h>
  26 #include "map.h"
  27 #include "util/namespaces.h"
  28 #include "symbol.h"
  29 #include "symbol/kallsyms.h"
  30 #include "asm/bug.h"
  31 #include "stat.h"
  32 #include "session.h"
  33 #include "bpf-event.h"
  34 #include "print_binary.h"
  35 #include "tool.h"
  36 #include "util.h"
  37
  38 static const char *perf_event__names[] = {
  39         [0]                                     = "TOTAL",
  40         [PERF_RECORD_MMAP]                      = "MMAP",
  41         [PERF_RECORD_MMAP2]                     = "MMAP2",
  42         [PERF_RECORD_LOST]                      = "LOST",
  43         [PERF_RECORD_COMM]                      = "COMM",
  44         [PERF_RECORD_EXIT]                      = "EXIT",
  45         [PERF_RECORD_THROTTLE]                  = "THROTTLE",
  46         [PERF_RECORD_UNTHROTTLE]                = "UNTHROTTLE",
  47         [PERF_RECORD_FORK]                      = "FORK",
  48         [PERF_RECORD_READ]                      = "READ",
  49         [PERF_RECORD_SAMPLE]                    = "SAMPLE",
  50         [PERF_RECORD_AUX]                       = "AUX",
  51         [PERF_RECORD_ITRACE_START]              = "ITRACE_START",
  52         [PERF_RECORD_LOST_SAMPLES]              = "LOST_SAMPLES",
  53         [PERF_RECORD_SWITCH]                    = "SWITCH",
  54         [PERF_RECORD_SWITCH_CPU_WIDE]           = "SWITCH_CPU_WIDE",
  55         [PERF_RECORD_NAMESPACES]                = "NAMESPACES",
  56         [PERF_RECORD_KSYMBOL]                   = "KSYMBOL",
  57         [PERF_RECORD_BPF_EVENT]                 = "BPF_EVENT",
  58         [PERF_RECORD_CGROUP]                    = "CGROUP",
  59         [PERF_RECORD_TEXT_POKE]                 = "TEXT_POKE",
  60         [PERF_RECORD_AUX_OUTPUT_HW_ID]          = "AUX_OUTPUT_HW_ID",
  61         [PERF_RECORD_HEADER_ATTR]               = "ATTR",
  62         [PERF_RECORD_HEADER_EVENT_TYPE]         = "EVENT_TYPE",
  63         [PERF_RECORD_HEADER_TRACING_DATA]       = "TRACING_DATA",
  64         [PERF_RECORD_HEADER_BUILD_ID]           = "BUILD_ID",
  65         [PERF_RECORD_FINISHED_ROUND]            = "FINISHED_ROUND",
  66         [PERF_RECORD_ID_INDEX]                  = "ID_INDEX",
  67         [PERF_RECORD_AUXTRACE_INFO]             = "AUXTRACE_INFO",
  68         [PERF_RECORD_AUXTRACE]                  = "AUXTRACE",
  69         [PERF_RECORD_AUXTRACE_ERROR]            = "AUXTRACE_ERROR",
  70         [PERF_RECORD_THREAD_MAP]                = "THREAD_MAP",
  71         [PERF_RECORD_CPU_MAP]                   = "CPU_MAP",
  72         [PERF_RECORD_STAT_CONFIG]               = "STAT_CONFIG",
  73         [PERF_RECORD_STAT]                      = "STAT",
  74         [PERF_RECORD_STAT_ROUND]                = "STAT_ROUND",
  75         [PERF_RECORD_EVENT_UPDATE]              = "EVENT_UPDATE",
  76         [PERF_RECORD_TIME_CONV]                 = "TIME_CONV",
  77         [PERF_RECORD_HEADER_FEATURE]            = "FEATURE",
  78         [PERF_RECORD_COMPRESSED]                = "COMPRESSED",
  79         [PERF_RECORD_FINISHED_INIT]             = "FINISHED_INIT",
  80 };
  81
  82 const char *perf_event__name(unsigned int id)
  83 {
  84         if (id >= ARRAY_SIZE(perf_event__names))
  85                 return "INVALID";
  86         if (!perf_event__names[id])
  87                 return "UNKNOWN";
  88         return perf_event__names[id];
  89 }
  90
  91 struct process_symbol_args {
  92         const char *name;
  93         u64        start;
  94 };
  95
  96 static int find_func_symbol_cb(void *arg, const char *name, char type,
  97                                u64 start)
  98 {
  99         struct process_symbol_args *args = arg;
 100
 101         /*
 102          * Must be a function or at least an alias, as in PARISC64, where "_text" is
 103          * an 'A' to the same address as "_stext".
 104          */
 105         if (!(kallsyms__is_function(type) ||
 106               type == 'A') || strcmp(name, args->name))
 107                 return 0;
 108
 109         args->start = start;
 110         return 1;
 111 }
 112
 113 static int find_any_symbol_cb(void *arg, const char *name,
 114                               char type __maybe_unused, u64 start)
 115 {
 116         struct process_symbol_args *args = arg;
 117
 118         if (strcmp(name, args->name))
 119                 return 0;
 120
 121         args->start = start;
 122         return 1;
 123 }
 124
 125 int kallsyms__get_function_start(const char *kallsyms_filename,
 126                                  const char *symbol_name, u64 *addr)
 127 {
 128         struct process_symbol_args args = { .name = symbol_name, };
 129
 130         if (kallsyms__parse(kallsyms_filename, &args, find_func_symbol_cb) <= 0)
 131                 return -1;
 132
 133         *addr = args.start;
 134         return 0;
 135 }
 136
 137 int kallsyms__get_symbol_start(const char *kallsyms_filename,
 138                                const char *symbol_name, u64 *addr)
 139 {
 140         struct process_symbol_args args = { .name = symbol_name, };
 141
 142         if (kallsyms__parse(kallsyms_filename, &args, find_any_symbol_cb) <= 0)
 143                 return -1;
 144
 145         *addr = args.start;
 146         return 0;
 147 }
 148
 149 void perf_event__read_stat_config(struct perf_stat_config *config,
 150                                   struct perf_record_stat_config *event)
 151 {
 152         unsigned i;
 153
 154         for (i = 0; i < event->nr; i++) {
 155
 156                 switch (event->data[i].tag) {
 157 #define CASE(__term, __val)                                     \
 158                 case PERF_STAT_CONFIG_TERM__##__term:           \
 159                         config->__val = event->data[i].val;     \
 160                         break;
 161
 162                 CASE(AGGR_MODE,  aggr_mode)
 163                 CASE(SCALE,      scale)
 164                 CASE(INTERVAL,   interval)
 165                 CASE(AGGR_LEVEL, aggr_level)
 166 #undef CASE
 167                 default:
 168                         pr_warning("unknown stat config term %" PRI_lu64 "\n",
 169                                    event->data[i].tag);
 170                 }
 171         }
 172 }
 173
 174 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp)
 175 {
 176         const char *s;
 177
 178         if (event->header.misc & PERF_RECORD_MISC_COMM_EXEC)
 179                 s = " exec";
 180         else
 181                 s = "";
 182
 183         return fprintf(fp, "%s: %s:%d/%d\n", s, event->comm.comm, event->comm.pid, event->comm.tid);
 184 }
 185
 186 size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp)
 187 {
 188         size_t ret = 0;
 189         struct perf_ns_link_info *ns_link_info;
 190         u32 nr_namespaces, idx;
 191
 192         ns_link_info = event->namespaces.link_info;
 193         nr_namespaces = event->namespaces.nr_namespaces;
 194
 195         ret += fprintf(fp, " %d/%d - nr_namespaces: %u\n\t\t[",
 196                        event->namespaces.pid,
 197                        event->namespaces.tid,
 198                        nr_namespaces);
 199
 200         for (idx = 0; idx < nr_namespaces; idx++) {
 201                 if (idx && (idx % 4 == 0))
 202                         ret += fprintf(fp, "\n\t\t ");
 203
 204                 ret  += fprintf(fp, "%u/%s: %" PRIu64 "/%#" PRIx64 "%s", idx,
 205                                 perf_ns__name(idx), (u64)ns_link_info[idx].dev,
 206                                 (u64)ns_link_info[idx].ino,
 207                                 ((idx + 1) != nr_namespaces) ? ", " : "]\n");
 208         }
 209
 210         return ret;
 211 }
 212
 213 size_t perf_event__fprintf_cgroup(union perf_event *event, FILE *fp)
 214 {
 215         return fprintf(fp, " cgroup: %" PRI_lu64 " %s\n",
 216                        event->cgroup.id, event->cgroup.path);
 217 }
 218
 219 int perf_event__process_comm(struct perf_tool *tool __maybe_unused,
 220                              union perf_event *event,
 221                              struct perf_sample *sample,
 222                              struct machine *machine)
 223 {
 224         return machine__process_comm_event(machine, event, sample);
 225 }
 226
 227 int perf_event__process_namespaces(struct perf_tool *tool __maybe_unused,
 228                                    union perf_event *event,
 229                                    struct perf_sample *sample,
 230                                    struct machine *machine)
 231 {
 232         return machine__process_namespaces_event(machine, event, sample);
 233 }
 234
 235 int perf_event__process_cgroup(struct perf_tool *tool __maybe_unused,
 236                                union perf_event *event,
 237                                struct perf_sample *sample,
 238                                struct machine *machine)
 239 {
 240         return machine__process_cgroup_event(machine, event, sample);
 241 }
 242
 243 int perf_event__process_lost(struct perf_tool *tool __maybe_unused,
 244                              union perf_event *event,
 245                              struct perf_sample *sample,
 246                              struct machine *machine)
 247 {
 248         return machine__process_lost_event(machine, event, sample);
 249 }
 250
 251 int perf_event__process_aux(struct perf_tool *tool __maybe_unused,
 252                             union perf_event *event,
 253                             struct perf_sample *sample __maybe_unused,
 254                             struct machine *machine)
 255 {
 256         return machine__process_aux_event(machine, event);
 257 }
 258
 259 int perf_event__process_itrace_start(struct perf_tool *tool __maybe_unused,
 260                                      union perf_event *event,
 261                                      struct perf_sample *sample __maybe_unused,
 262                                      struct machine *machine)
 263 {
 264         return machine__process_itrace_start_event(machine, event);
 265 }
 266
 267 int perf_event__process_aux_output_hw_id(struct perf_tool *tool __maybe_unused,
 268                                          union perf_event *event,
 269                                          struct perf_sample *sample __maybe_unused,
 270                                          struct machine *machine)
 271 {
 272         return machine__process_aux_output_hw_id_event(machine, event);
 273 }
 274
 275 int perf_event__process_lost_samples(struct perf_tool *tool __maybe_unused,
 276                                      union perf_event *event,
 277                                      struct perf_sample *sample,
 278                                      struct machine *machine)
 279 {
 280         return machine__process_lost_samples_event(machine, event, sample);
 281 }
 282
 283 int perf_event__process_switch(struct perf_tool *tool __maybe_unused,
 284                                union perf_event *event,
 285                                struct perf_sample *sample __maybe_unused,
 286                                struct machine *machine)
 287 {
 288         return machine__process_switch_event(machine, event);
 289 }
 290
 291 int perf_event__process_ksymbol(struct perf_tool *tool __maybe_unused,
 292                                 union perf_event *event,
 293                                 struct perf_sample *sample __maybe_unused,
 294                                 struct machine *machine)
 295 {
 296         return machine__process_ksymbol(machine, event, sample);
 297 }
 298
 299 int perf_event__process_bpf(struct perf_tool *tool __maybe_unused,
 300                             union perf_event *event,
 301                             struct perf_sample *sample,
 302                             struct machine *machine)
 303 {
 304         return machine__process_bpf(machine, event, sample);
 305 }
 306
 307 int perf_event__process_text_poke(struct perf_tool *tool __maybe_unused,
 308                                   union perf_event *event,
 309                                   struct perf_sample *sample,
 310                                   struct machine *machine)
 311 {
 312         return machine__process_text_poke(machine, event, sample);
 313 }
 314
 315 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp)
 316 {
 317         return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64 "]: %c %s\n",
 318                        event->mmap.pid, event->mmap.tid, event->mmap.start,
 319                        event->mmap.len, event->mmap.pgoff,
 320                        (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x',
 321                        event->mmap.filename);
 322 }
 323
 324 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp)
 325 {
 326         if (event->header.misc & PERF_RECORD_MISC_MMAP_BUILD_ID) {
 327                 char sbuild_id[SBUILD_ID_SIZE];
 328                 struct build_id bid;
 329
 330                 build_id__init(&bid, event->mmap2.build_id,
 331                                event->mmap2.build_id_size);
 332                 build_id__sprintf(&bid, sbuild_id);
 333
 334                 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64
 335                                    " <%s>]: %c%c%c%c %s\n",
 336                                event->mmap2.pid, event->mmap2.tid, event->mmap2.start,
 337                                event->mmap2.len, event->mmap2.pgoff, sbuild_id,
 338                                (event->mmap2.prot & PROT_READ) ? 'r' : '-',
 339                                (event->mmap2.prot & PROT_WRITE) ? 'w' : '-',
 340                                (event->mmap2.prot & PROT_EXEC) ? 'x' : '-',
 341                                (event->mmap2.flags & MAP_SHARED) ? 's' : 'p',
 342                                event->mmap2.filename);
 343         } else {
 344                 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64
 345                                    " %02x:%02x %"PRI_lu64" %"PRI_lu64"]: %c%c%c%c %s\n",
 346                                event->mmap2.pid, event->mmap2.tid, event->mmap2.start,
 347                                event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj,
 348                                event->mmap2.min, event->mmap2.ino,
 349                                event->mmap2.ino_generation,
 350                                (event->mmap2.prot & PROT_READ) ? 'r' : '-',
 351                                (event->mmap2.prot & PROT_WRITE) ? 'w' : '-',
 352                                (event->mmap2.prot & PROT_EXEC) ? 'x' : '-',
 353                                (event->mmap2.flags & MAP_SHARED) ? 's' : 'p',
 354                                event->mmap2.filename);
 355         }
 356 }
 357
 358 size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp)
 359 {
 360         struct perf_thread_map *threads = thread_map__new_event(&event->thread_map);
 361         size_t ret;
 362
 363         ret = fprintf(fp, " nr: ");
 364
 365         if (threads)
 366                 ret += thread_map__fprintf(threads, fp);
 367         else
 368                 ret += fprintf(fp, "failed to get threads from event\n");
 369
 370         perf_thread_map__put(threads);
 371         return ret;
 372 }
 373
 374 size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp)
 375 {
 376         struct perf_cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data);
 377         size_t ret;
 378
 379         ret = fprintf(fp, ": ");
 380
 381         if (cpus)
 382                 ret += cpu_map__fprintf(cpus, fp);
 383         else
 384                 ret += fprintf(fp, "failed to get cpumap from event\n");
 385
 386         perf_cpu_map__put(cpus);
 387         return ret;
 388 }
 389
 390 int perf_event__process_mmap(struct perf_tool *tool __maybe_unused,
 391                              union perf_event *event,
 392                              struct perf_sample *sample,
 393                              struct machine *machine)
 394 {
 395         return machine__process_mmap_event(machine, event, sample);
 396 }
 397
 398 int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused,
 399                              union perf_event *event,
 400                              struct perf_sample *sample,
 401                              struct machine *machine)
 402 {
 403         return machine__process_mmap2_event(machine, event, sample);
 404 }
 405
 406 size_t perf_event__fprintf_task(union perf_event *event, FILE *fp)
 407 {
 408         return fprintf(fp, "(%d:%d):(%d:%d)\n",
 409                        event->fork.pid, event->fork.tid,
 410                        event->fork.ppid, event->fork.ptid);
 411 }
 412
 413 int perf_event__process_fork(struct perf_tool *tool __maybe_unused,
 414                              union perf_event *event,
 415                              struct perf_sample *sample,
 416                              struct machine *machine)
 417 {
 418         return machine__process_fork_event(machine, event, sample);
 419 }
 420
 421 int perf_event__process_exit(struct perf_tool *tool __maybe_unused,
 422                              union perf_event *event,
 423                              struct perf_sample *sample,
 424                              struct machine *machine)
 425 {
 426         return machine__process_exit_event(machine, event, sample);
 427 }
 428
 429 size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp)
 430 {
 431         return fprintf(fp, " offset: %#"PRI_lx64" size: %#"PRI_lx64" flags: %#"PRI_lx64" [%s%s%s]\n",
 432                        event->aux.aux_offset, event->aux.aux_size,
 433                        event->aux.flags,
 434                        event->aux.flags & PERF_AUX_FLAG_TRUNCATED ? "T" : "",
 435                        event->aux.flags & PERF_AUX_FLAG_OVERWRITE ? "O" : "",
 436                        event->aux.flags & PERF_AUX_FLAG_PARTIAL   ? "P" : "");
 437 }
 438
 439 size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp)
 440 {
 441         return fprintf(fp, " pid: %u tid: %u\n",
 442                        event->itrace_start.pid, event->itrace_start.tid);
 443 }
 444
 445 size_t perf_event__fprintf_aux_output_hw_id(union perf_event *event, FILE *fp)
 446 {
 447         return fprintf(fp, " hw_id: %#"PRI_lx64"\n",
 448                        event->aux_output_hw_id.hw_id);
 449 }
 450
 451 size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp)
 452 {
 453         bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT;
 454         const char *in_out = !out ? "IN         " :
 455                 !(event->header.misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT) ?
 456                                     "OUT        " : "OUT preempt";
 457
 458         if (event->header.type == PERF_RECORD_SWITCH)
 459                 return fprintf(fp, " %s\n", in_out);
 460
 461         return fprintf(fp, " %s  %s pid/tid: %5d/%-5d\n",
 462                        in_out, out ? "next" : "prev",
 463                        event->context_switch.next_prev_pid,
 464                        event->context_switch.next_prev_tid);
 465 }
 466
 467 static size_t perf_event__fprintf_lost(union perf_event *event, FILE *fp)
 468 {
 469         return fprintf(fp, " lost %" PRI_lu64 "\n", event->lost.lost);
 470 }
 471
 472 size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp)
 473 {
 474         return fprintf(fp, " addr %" PRI_lx64 " len %u type %u flags 0x%x name %s\n",
 475                        event->ksymbol.addr, event->ksymbol.len,
 476                        event->ksymbol.ksym_type,
 477                        event->ksymbol.flags, event->ksymbol.name);
 478 }
 479
 480 size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp)
 481 {
 482         return fprintf(fp, " type %u, flags %u, id %u\n",
 483                        event->bpf.type, event->bpf.flags, event->bpf.id);
 484 }
 485
 486 static int text_poke_printer(enum binary_printer_ops op, unsigned int val,
 487                              void *extra, FILE *fp)
 488 {
 489         bool old = *(bool *)extra;
 490
 491         switch ((int)op) {
 492         case BINARY_PRINT_LINE_BEGIN:
 493                 return fprintf(fp, "            %s bytes:", old ? "Old" : "New");
 494         case BINARY_PRINT_NUM_DATA:
 495                 return fprintf(fp, " %02x", val);
 496         case BINARY_PRINT_LINE_END:
 497                 return fprintf(fp, "\n");
 498         default:
 499                 return 0;
 500         }
 501 }
 502
 503 size_t perf_event__fprintf_text_poke(union perf_event *event, struct machine *machine, FILE *fp)
 504 {
 505         struct perf_record_text_poke_event *tp = &event->text_poke;
 506         size_t ret;
 507         bool old;
 508
 509         ret = fprintf(fp, " %" PRI_lx64 " ", tp->addr);
 510         if (machine) {
 511                 struct addr_location al;
 512
 513                 addr_location__init(&al);
 514                 al.map = map__get(maps__find(machine__kernel_maps(machine), tp->addr));
 515                 if (al.map && map__load(al.map) >= 0) {
 516                         al.addr = map__map_ip(al.map, tp->addr);
 517                         al.sym = map__find_symbol(al.map, al.addr);
 518                         if (al.sym)
 519                                 ret += symbol__fprintf_symname_offs(al.sym, &al, fp);
 520                 }
 521                 addr_location__exit(&al);
 522         }
 523         ret += fprintf(fp, " old len %u new len %u\n", tp->old_len, tp->new_len);
 524         old = true;
 525         ret += binary__fprintf(tp->bytes, tp->old_len, 16, text_poke_printer,
 526                                &old, fp);
 527         old = false;
 528         ret += binary__fprintf(tp->bytes + tp->old_len, tp->new_len, 16,
 529                                text_poke_printer, &old, fp);
 530         return ret;
 531 }
 532
 533 size_t perf_event__fprintf(union perf_event *event, struct machine *machine, FILE *fp)
 534 {
 535         size_t ret = fprintf(fp, "PERF_RECORD_%s",
 536                              perf_event__name(event->header.type));
 537
 538         switch (event->header.type) {
 539         case PERF_RECORD_COMM:
 540                 ret += perf_event__fprintf_comm(event, fp);
 541                 break;
 542         case PERF_RECORD_FORK:
 543         case PERF_RECORD_EXIT:
 544                 ret += perf_event__fprintf_task(event, fp);
 545                 break;
 546         case PERF_RECORD_MMAP:
 547                 ret += perf_event__fprintf_mmap(event, fp);
 548                 break;
 549         case PERF_RECORD_NAMESPACES:
 550                 ret += perf_event__fprintf_namespaces(event, fp);
 551                 break;
 552         case PERF_RECORD_CGROUP:
 553                 ret += perf_event__fprintf_cgroup(event, fp);
 554                 break;
 555         case PERF_RECORD_MMAP2:
 556                 ret += perf_event__fprintf_mmap2(event, fp);
 557                 break;
 558         case PERF_RECORD_AUX:
 559                 ret += perf_event__fprintf_aux(event, fp);
 560                 break;
 561         case PERF_RECORD_ITRACE_START:
 562                 ret += perf_event__fprintf_itrace_start(event, fp);
 563                 break;
 564         case PERF_RECORD_SWITCH:
 565         case PERF_RECORD_SWITCH_CPU_WIDE:
 566                 ret += perf_event__fprintf_switch(event, fp);
 567                 break;
 568         case PERF_RECORD_LOST:
 569                 ret += perf_event__fprintf_lost(event, fp);
 570                 break;
 571         case PERF_RECORD_KSYMBOL:
 572                 ret += perf_event__fprintf_ksymbol(event, fp);
 573                 break;
 574         case PERF_RECORD_BPF_EVENT:
 575                 ret += perf_event__fprintf_bpf(event, fp);
 576                 break;
 577         case PERF_RECORD_TEXT_POKE:
 578                 ret += perf_event__fprintf_text_poke(event, machine, fp);
 579                 break;
 580         case PERF_RECORD_AUX_OUTPUT_HW_ID:
 581                 ret += perf_event__fprintf_aux_output_hw_id(event, fp);
 582                 break;
 583         default:
 584                 ret += fprintf(fp, "\n");
 585         }
 586
 587         return ret;
 588 }
 589
 590 int perf_event__process(struct perf_tool *tool __maybe_unused,
 591                         union perf_event *event,
 592                         struct perf_sample *sample,
 593                         struct machine *machine)
 594 {
 595         return machine__process_event(machine, event, sample);
 596 }
 597
 598 struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
 599                              struct addr_location *al)
 600 {
 601         struct maps *maps = thread__maps(thread);
 602         struct machine *machine = maps__machine(maps);
 603         bool load_map = false;
 604
 605         maps__zput(al->maps);
 606         map__zput(al->map);
 607         thread__zput(al->thread);
 608         al->thread = thread__get(thread);
 609
 610         al->addr = addr;
 611         al->cpumode = cpumode;
 612         al->filtered = 0;
 613
 614         if (machine == NULL)
 615                 return NULL;
 616
 617         if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) {
 618                 al->level = 'k';
 619                 maps = machine__kernel_maps(machine);
 620                 load_map = !symbol_conf.lazy_load_kernel_maps;
 621         } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) {
 622                 al->level = '.';
 623         } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) {
 624                 al->level = 'g';
 625                 maps = machine__kernel_maps(machine);
 626                 load_map = !symbol_conf.lazy_load_kernel_maps;
 627         } else if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) {
 628                 al->level = 'u';
 629         } else {
 630                 al->level = 'H';
 631
 632                 if ((cpumode == PERF_RECORD_MISC_GUEST_USER ||
 633                         cpumode == PERF_RECORD_MISC_GUEST_KERNEL) &&
 634                         !perf_guest)
 635                         al->filtered |= (1 << HIST_FILTER__GUEST);
 636                 if ((cpumode == PERF_RECORD_MISC_USER ||
 637                         cpumode == PERF_RECORD_MISC_KERNEL) &&
 638                         !perf_host)
 639                         al->filtered |= (1 << HIST_FILTER__HOST);
 640
 641                 return NULL;
 642         }
 643         al->maps = maps__get(maps);
 644         al->map = map__get(maps__find(maps, al->addr));
 645         if (al->map != NULL) {
 646                 /*
 647                  * Kernel maps might be changed when loading symbols so loading
 648                  * must be done prior to using kernel maps.
 649                  */
 650                 if (load_map)
 651                         map__load(al->map);
 652                 al->addr = map__map_ip(al->map, al->addr);
 653         }
 654
 655         return al->map;
 656 }
 657
 658 /*
 659  * For branch stacks or branch samples, the sample cpumode might not be correct
 660  * because it applies only to the sample 'ip' and not necessary to 'addr' or
 661  * branch stack addresses. If possible, use a fallback to deal with those cases.
 662  */
 663 struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr,
 664                                 struct addr_location *al)
 665 {
 666         struct map *map = thread__find_map(thread, cpumode, addr, al);
 667         struct machine *machine = maps__machine(thread__maps(thread));
 668         u8 addr_cpumode = machine__addr_cpumode(machine, cpumode, addr);
 669
 670         if (map || addr_cpumode == cpumode)
 671                 return map;
 672
 673         return thread__find_map(thread, addr_cpumode, addr, al);
 674 }
 675
 676 struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
 677                                    u64 addr, struct addr_location *al)
 678 {
 679         al->sym = NULL;
 680         if (thread__find_map(thread, cpumode, addr, al))
 681                 al->sym = map__find_symbol(al->map, al->addr);
 682         return al->sym;
 683 }
 684
 685 struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode,
 686                                       u64 addr, struct addr_location *al)
 687 {
 688         al->sym = NULL;
 689         if (thread__find_map_fb(thread, cpumode, addr, al))
 690                 al->sym = map__find_symbol(al->map, al->addr);
 691         return al->sym;
 692 }
 693
 694 static bool check_address_range(struct intlist *addr_list, int addr_range,
 695                                 unsigned long addr)
 696 {
 697         struct int_node *pos;
 698
 699         intlist__for_each_entry(pos, addr_list) {
 700                 if (addr >= pos->i && addr < pos->i + addr_range)
 701                         return true;
 702         }
 703
 704         return false;
 705 }
 706
 707 /*
 708  * Callers need to drop the reference to al->thread, obtained in
 709  * machine__findnew_thread()
 710  */
 711 int machine__resolve(struct machine *machine, struct addr_location *al,
 712                      struct perf_sample *sample)
 713 {
 714         struct thread *thread;
 715         struct dso *dso;
 716
 717         if (symbol_conf.guest_code && !machine__is_host(machine))
 718                 thread = machine__findnew_guest_code(machine, sample->pid);
 719         else
 720                 thread = machine__findnew_thread(machine, sample->pid, sample->tid);
 721         if (thread == NULL)
 722                 return -1;
 723
 724         dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread__tid(thread));
 725         thread__find_map(thread, sample->cpumode, sample->ip, al);
 726         dso = al->map ? map__dso(al->map) : NULL;
 727         dump_printf(" ...... dso: %s\n",
 728                 dso
 729                 ? dso->long_name
 730                 : (al->level == 'H' ? "[hypervisor]" : "<not found>"));
 731
 732         if (thread__is_filtered(thread))
 733                 al->filtered |= (1 << HIST_FILTER__THREAD);
 734
 735         thread__put(thread);
 736         thread = NULL;
 737
 738         al->sym = NULL;
 739         al->cpu = sample->cpu;
 740         al->socket = -1;
 741         al->srcline = NULL;
 742
 743         if (al->cpu >= 0) {
 744                 struct perf_env *env = machine->env;
 745
 746                 if (env && env->cpu)
 747                         al->socket = env->cpu[al->cpu].socket_id;
 748         }
 749
 750         if (al->map) {
 751                 if (symbol_conf.dso_list &&
 752                     (!dso || !(strlist__has_entry(symbol_conf.dso_list,
 753                                                   dso->short_name) ||
 754                                (dso->short_name != dso->long_name &&
 755                                 strlist__has_entry(symbol_conf.dso_list,
 756                                                    dso->long_name))))) {
 757                         al->filtered |= (1 << HIST_FILTER__DSO);
 758                 }
 759
 760                 al->sym = map__find_symbol(al->map, al->addr);
 761         } else if (symbol_conf.dso_list) {
 762                 al->filtered |= (1 << HIST_FILTER__DSO);
 763         }
 764
 765         if (symbol_conf.sym_list) {
 766                 int ret = 0;
 767                 char al_addr_str[32];
 768                 size_t sz = sizeof(al_addr_str);
 769
 770                 if (al->sym) {
 771                         ret = strlist__has_entry(symbol_conf.sym_list,
 772                                                 al->sym->name);
 773                 }
 774                 if (!ret && al->sym) {
 775                         snprintf(al_addr_str, sz, "0x%"PRIx64,
 776                                  map__unmap_ip(al->map, al->sym->start));
 777                         ret = strlist__has_entry(symbol_conf.sym_list,
 778                                                 al_addr_str);
 779                 }
 780                 if (!ret && symbol_conf.addr_list && al->map) {
 781                         unsigned long addr = map__unmap_ip(al->map, al->addr);
 782
 783                         ret = intlist__has_entry(symbol_conf.addr_list, addr);
 784                         if (!ret && symbol_conf.addr_range) {
 785                                 ret = check_address_range(symbol_conf.addr_list,
 786                                                           symbol_conf.addr_range,
 787                                                           addr);
 788                         }
 789                 }
 790
 791                 if (!ret)
 792                         al->filtered |= (1 << HIST_FILTER__SYMBOL);
 793         }
 794
 795         return 0;
 796 }
 797
 798 bool is_bts_event(struct perf_event_attr *attr)
 799 {
 800         return attr->type == PERF_TYPE_HARDWARE &&
 801                (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) &&
 802                attr->sample_period == 1;
 803 }
 804
 805 bool sample_addr_correlates_sym(struct perf_event_attr *attr)
 806 {
 807         if (attr->type == PERF_TYPE_SOFTWARE &&
 808             (attr->config == PERF_COUNT_SW_PAGE_FAULTS ||
 809              attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN ||
 810              attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ))
 811                 return true;
 812
 813         if (is_bts_event(attr))
 814                 return true;
 815
 816         return false;
 817 }
 818
 819 void thread__resolve(struct thread *thread, struct addr_location *al,
 820                      struct perf_sample *sample)
 821 {
 822         thread__find_map_fb(thread, sample->cpumode, sample->addr, al);
 823
 824         al->cpu = sample->cpu;
 825         al->sym = NULL;
 826
 827         if (al->map)
 828                 al->sym = map__find_symbol(al->map, al->addr);
 829 }