Arnaldo Carvalho de Melo | 8fa66bd | 2009-05-18 12:45:42 -0300 | [diff] [blame^] | 1 | #define _GNU_SOURCE |
| 2 | #include <sys/types.h> |
| 3 | #include <sys/stat.h> |
| 4 | #include <sys/time.h> |
| 5 | #include <unistd.h> |
| 6 | #include <stdint.h> |
| 7 | #include <stdbool.h> |
| 8 | #include <stdlib.h> |
| 9 | #include <string.h> |
| 10 | #include <limits.h> |
| 11 | #include <fcntl.h> |
| 12 | #include <stdio.h> |
| 13 | #include <errno.h> |
| 14 | #include <ctype.h> |
| 15 | #include <time.h> |
| 16 | #include <getopt.h> |
| 17 | #include <assert.h> |
| 18 | #include <search.h> |
| 19 | |
| 20 | #include <sys/ioctl.h> |
| 21 | #include <sys/poll.h> |
| 22 | #include <sys/prctl.h> |
| 23 | #include <sys/wait.h> |
| 24 | #include <sys/mman.h> |
| 25 | #include <sys/types.h> |
| 26 | #include <sys/stat.h> |
| 27 | |
| 28 | #include <linux/unistd.h> |
| 29 | #include <linux/types.h> |
| 30 | |
| 31 | #include "../../include/linux/perf_counter.h" |
| 32 | #include "list.h" |
| 33 | |
| 34 | #define SHOW_KERNEL 1 |
| 35 | #define SHOW_USER 2 |
| 36 | #define SHOW_HV 4 |
| 37 | |
| 38 | static char const *input_name = "output.perf"; |
| 39 | static int input; |
| 40 | static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV; |
| 41 | |
| 42 | static unsigned long page_size; |
| 43 | static unsigned long mmap_window = 32; |
| 44 | |
| 45 | static const char *perf_event_names[] = { |
| 46 | [PERF_EVENT_MMAP] = " PERF_EVENT_MMAP", |
| 47 | [PERF_EVENT_MUNMAP] = " PERF_EVENT_MUNMAP", |
| 48 | [PERF_EVENT_COMM] = " PERF_EVENT_COMM", |
| 49 | }; |
| 50 | |
| 51 | struct ip_event { |
| 52 | struct perf_event_header header; |
| 53 | __u64 ip; |
| 54 | __u32 pid, tid; |
| 55 | }; |
| 56 | struct mmap_event { |
| 57 | struct perf_event_header header; |
| 58 | __u32 pid, tid; |
| 59 | __u64 start; |
| 60 | __u64 len; |
| 61 | __u64 pgoff; |
| 62 | char filename[PATH_MAX]; |
| 63 | }; |
| 64 | struct comm_event { |
| 65 | struct perf_event_header header; |
| 66 | __u32 pid,tid; |
| 67 | char comm[16]; |
| 68 | }; |
| 69 | |
| 70 | typedef union event_union { |
| 71 | struct perf_event_header header; |
| 72 | struct ip_event ip; |
| 73 | struct mmap_event mmap; |
| 74 | struct comm_event comm; |
| 75 | } event_t; |
| 76 | |
| 77 | struct section { |
| 78 | struct list_head node; |
| 79 | uint64_t start; |
| 80 | uint64_t end; |
| 81 | uint64_t offset; |
| 82 | char name[0]; |
| 83 | }; |
| 84 | |
| 85 | static struct section *section__new(uint64_t start, uint64_t size, |
| 86 | uint64_t offset, char *name) |
| 87 | { |
| 88 | struct section *self = malloc(sizeof(*self) + strlen(name) + 1); |
| 89 | |
| 90 | if (self != NULL) { |
| 91 | self->start = start; |
| 92 | self->end = start + size; |
| 93 | self->offset = offset; |
| 94 | strcpy(self->name, name); |
| 95 | } |
| 96 | |
| 97 | return self; |
| 98 | } |
| 99 | |
| 100 | static void section__delete(struct section *self) |
| 101 | { |
| 102 | free(self); |
| 103 | } |
| 104 | |
| 105 | struct symbol { |
| 106 | struct list_head node; |
| 107 | uint64_t start; |
| 108 | uint64_t end; |
| 109 | char name[0]; |
| 110 | }; |
| 111 | |
| 112 | static struct symbol *symbol__new(uint64_t start, uint64_t len, const char *name) |
| 113 | { |
| 114 | struct symbol *self = malloc(sizeof(*self) + strlen(name) + 1); |
| 115 | |
| 116 | if (self != NULL) { |
| 117 | self->start = start; |
| 118 | self->end = start + len; |
| 119 | strcpy(self->name, name); |
| 120 | } |
| 121 | |
| 122 | return self; |
| 123 | } |
| 124 | |
| 125 | static void symbol__delete(struct symbol *self) |
| 126 | { |
| 127 | free(self); |
| 128 | } |
| 129 | |
| 130 | static size_t symbol__fprintf(struct symbol *self, FILE *fp) |
| 131 | { |
| 132 | return fprintf(fp, " %lx-%lx %s\n", |
| 133 | self->start, self->end, self->name); |
| 134 | } |
| 135 | |
| 136 | struct dso { |
| 137 | struct list_head node; |
| 138 | struct list_head sections; |
| 139 | struct list_head syms; |
| 140 | char name[0]; |
| 141 | }; |
| 142 | |
| 143 | static struct dso *dso__new(const char *name) |
| 144 | { |
| 145 | struct dso *self = malloc(sizeof(*self) + strlen(name) + 1); |
| 146 | |
| 147 | if (self != NULL) { |
| 148 | strcpy(self->name, name); |
| 149 | INIT_LIST_HEAD(&self->sections); |
| 150 | INIT_LIST_HEAD(&self->syms); |
| 151 | } |
| 152 | |
| 153 | return self; |
| 154 | } |
| 155 | |
| 156 | static void dso__delete_sections(struct dso *self) |
| 157 | { |
| 158 | struct section *pos, *n; |
| 159 | |
| 160 | list_for_each_entry_safe(pos, n, &self->sections, node) |
| 161 | section__delete(pos); |
| 162 | } |
| 163 | |
| 164 | static void dso__delete_symbols(struct dso *self) |
| 165 | { |
| 166 | struct symbol *pos, *n; |
| 167 | |
| 168 | list_for_each_entry_safe(pos, n, &self->syms, node) |
| 169 | symbol__delete(pos); |
| 170 | } |
| 171 | |
| 172 | static void dso__delete(struct dso *self) |
| 173 | { |
| 174 | dso__delete_sections(self); |
| 175 | dso__delete_symbols(self); |
| 176 | free(self); |
| 177 | } |
| 178 | |
| 179 | static void dso__insert_symbol(struct dso *self, struct symbol *sym) |
| 180 | { |
| 181 | list_add_tail(&sym->node, &self->syms); |
| 182 | } |
| 183 | |
| 184 | static struct symbol *dso__find_symbol(struct dso *self, uint64_t ip) |
| 185 | { |
| 186 | if (self == NULL) |
| 187 | return NULL; |
| 188 | |
| 189 | struct symbol *pos; |
| 190 | |
| 191 | list_for_each_entry(pos, &self->syms, node) |
| 192 | if (ip >= pos->start && ip <= pos->end) |
| 193 | return pos; |
| 194 | |
| 195 | return NULL; |
| 196 | } |
| 197 | |
| 198 | static int dso__load(struct dso *self) |
| 199 | { |
| 200 | /* FIXME */ |
| 201 | return 0; |
| 202 | } |
| 203 | |
| 204 | static size_t dso__fprintf(struct dso *self, FILE *fp) |
| 205 | { |
| 206 | struct symbol *pos; |
| 207 | size_t ret = fprintf(fp, "dso: %s\n", self->name); |
| 208 | |
| 209 | list_for_each_entry(pos, &self->syms, node) |
| 210 | ret += symbol__fprintf(pos, fp); |
| 211 | |
| 212 | return ret; |
| 213 | } |
| 214 | |
| 215 | static LIST_HEAD(dsos); |
| 216 | static struct dso *kernel_dso; |
| 217 | |
| 218 | static void dsos__add(struct dso *dso) |
| 219 | { |
| 220 | list_add_tail(&dso->node, &dsos); |
| 221 | } |
| 222 | |
| 223 | static struct dso *dsos__find(const char *name) |
| 224 | { |
| 225 | struct dso *pos; |
| 226 | |
| 227 | list_for_each_entry(pos, &dsos, node) |
| 228 | if (strcmp(pos->name, name) == 0) |
| 229 | return pos; |
| 230 | return NULL; |
| 231 | } |
| 232 | |
| 233 | static struct dso *dsos__findnew(const char *name) |
| 234 | { |
| 235 | struct dso *dso = dsos__find(name); |
| 236 | |
| 237 | if (dso == NULL) { |
| 238 | dso = dso__new(name); |
| 239 | if (dso != NULL && dso__load(dso) < 0) |
| 240 | goto out_delete_dso; |
| 241 | |
| 242 | dsos__add(dso); |
| 243 | } |
| 244 | |
| 245 | return dso; |
| 246 | |
| 247 | out_delete_dso: |
| 248 | dso__delete(dso); |
| 249 | return NULL; |
| 250 | } |
| 251 | |
| 252 | static void dsos__fprintf(FILE *fp) |
| 253 | { |
| 254 | struct dso *pos; |
| 255 | |
| 256 | list_for_each_entry(pos, &dsos, node) |
| 257 | dso__fprintf(pos, fp); |
| 258 | } |
| 259 | |
| 260 | static int load_kallsyms(void) |
| 261 | { |
| 262 | kernel_dso = dso__new("[kernel]"); |
| 263 | if (kernel_dso == NULL) |
| 264 | return -1; |
| 265 | |
| 266 | FILE *file = fopen("/proc/kallsyms", "r"); |
| 267 | |
| 268 | if (file == NULL) |
| 269 | goto out_delete_dso; |
| 270 | |
| 271 | char *line = NULL; |
| 272 | size_t n; |
| 273 | |
| 274 | while (!feof(file)) { |
| 275 | unsigned long long start; |
| 276 | char c, symbf[4096]; |
| 277 | |
| 278 | if (getline(&line, &n, file) < 0) |
| 279 | break; |
| 280 | |
| 281 | if (!line) |
| 282 | goto out_delete_dso; |
| 283 | |
| 284 | if (sscanf(line, "%llx %c %s", &start, &c, symbf) == 3) { |
| 285 | struct symbol *sym = symbol__new(start, 0x1000000, symbf); |
| 286 | |
| 287 | if (sym == NULL) |
| 288 | goto out_delete_dso; |
| 289 | |
| 290 | dso__insert_symbol(kernel_dso, sym); |
| 291 | } |
| 292 | } |
| 293 | |
| 294 | dsos__add(kernel_dso); |
| 295 | free(line); |
| 296 | fclose(file); |
| 297 | return 0; |
| 298 | |
| 299 | out_delete_dso: |
| 300 | dso__delete(kernel_dso); |
| 301 | return -1; |
| 302 | } |
| 303 | |
| 304 | struct map { |
| 305 | struct list_head node; |
| 306 | uint64_t start; |
| 307 | uint64_t end; |
| 308 | uint64_t pgoff; |
| 309 | struct dso *dso; |
| 310 | }; |
| 311 | |
| 312 | static struct map *map__new(struct mmap_event *event) |
| 313 | { |
| 314 | struct map *self = malloc(sizeof(*self)); |
| 315 | |
| 316 | if (self != NULL) { |
| 317 | self->start = event->start; |
| 318 | self->end = event->start + event->len; |
| 319 | self->pgoff = event->pgoff; |
| 320 | |
| 321 | self->dso = dsos__findnew(event->filename); |
| 322 | if (self->dso == NULL) |
| 323 | goto out_delete; |
| 324 | } |
| 325 | return self; |
| 326 | out_delete: |
| 327 | free(self); |
| 328 | return NULL; |
| 329 | } |
| 330 | |
| 331 | static size_t map__fprintf(struct map *self, FILE *fp) |
| 332 | { |
| 333 | return fprintf(fp, " %lx-%lx %lx %s\n", |
| 334 | self->start, self->end, self->pgoff, self->dso->name); |
| 335 | } |
| 336 | |
| 337 | struct symhist { |
| 338 | struct list_head node; |
| 339 | struct dso *dso; |
| 340 | struct symbol *sym; |
| 341 | uint32_t count; |
| 342 | char level; |
| 343 | }; |
| 344 | |
| 345 | static struct symhist *symhist__new(struct symbol *sym, struct dso *dso, |
| 346 | char level) |
| 347 | { |
| 348 | struct symhist *self = malloc(sizeof(*self)); |
| 349 | |
| 350 | if (self != NULL) { |
| 351 | self->sym = sym; |
| 352 | self->dso = dso; |
| 353 | self->level = level; |
| 354 | self->count = 0; |
| 355 | } |
| 356 | |
| 357 | return self; |
| 358 | } |
| 359 | |
| 360 | static void symhist__delete(struct symhist *self) |
| 361 | { |
| 362 | free(self); |
| 363 | } |
| 364 | |
| 365 | static bool symhist__equal(struct symhist *self, struct symbol *sym, |
| 366 | struct dso *dso, char level) |
| 367 | { |
| 368 | return self->level == level && self->sym == sym && self->dso == dso; |
| 369 | } |
| 370 | |
| 371 | static void symhist__inc(struct symhist *self) |
| 372 | { |
| 373 | ++self->count; |
| 374 | } |
| 375 | |
| 376 | static size_t symhist__fprintf(struct symhist *self, FILE *fp) |
| 377 | { |
| 378 | size_t ret = fprintf(fp, "[%c] ", self->level); |
| 379 | |
| 380 | if (self->level != '.') |
| 381 | ret += fprintf(fp, "%s", self->sym->name); |
| 382 | else |
| 383 | ret += fprintf(fp, "%s: %s", |
| 384 | self->dso ? self->dso->name : "<unknown", |
| 385 | self->sym ? self->sym->name : "<unknown>"); |
| 386 | return ret + fprintf(fp, ": %u\n", self->count); |
| 387 | } |
| 388 | |
| 389 | struct thread { |
| 390 | struct list_head node; |
| 391 | struct list_head maps; |
| 392 | struct list_head symhists; |
| 393 | pid_t pid; |
| 394 | char *comm; |
| 395 | }; |
| 396 | |
| 397 | static struct thread *thread__new(pid_t pid) |
| 398 | { |
| 399 | struct thread *self = malloc(sizeof(*self)); |
| 400 | |
| 401 | if (self != NULL) { |
| 402 | self->pid = pid; |
| 403 | self->comm = NULL; |
| 404 | INIT_LIST_HEAD(&self->maps); |
| 405 | INIT_LIST_HEAD(&self->symhists); |
| 406 | } |
| 407 | |
| 408 | return self; |
| 409 | } |
| 410 | |
| 411 | static void thread__insert_symhist(struct thread *self, |
| 412 | struct symhist *symhist) |
| 413 | { |
| 414 | list_add_tail(&symhist->node, &self->symhists); |
| 415 | } |
| 416 | |
| 417 | static struct symhist *thread__symhists_find(struct thread *self, |
| 418 | struct symbol *sym, |
| 419 | struct dso *dso, char level) |
| 420 | { |
| 421 | struct symhist *pos; |
| 422 | |
| 423 | list_for_each_entry(pos, &self->symhists, node) |
| 424 | if (symhist__equal(pos, sym, dso, level)) |
| 425 | return pos; |
| 426 | |
| 427 | return NULL; |
| 428 | } |
| 429 | |
| 430 | static int thread__symbol_incnew(struct thread *self, struct symbol *sym, |
| 431 | struct dso *dso, char level) |
| 432 | { |
| 433 | struct symhist *symhist = thread__symhists_find(self, sym, dso, level); |
| 434 | |
| 435 | if (symhist == NULL) { |
| 436 | symhist = symhist__new(sym, dso, level); |
| 437 | if (symhist == NULL) |
| 438 | goto out_error; |
| 439 | thread__insert_symhist(self, symhist); |
| 440 | } |
| 441 | |
| 442 | symhist__inc(symhist); |
| 443 | return 0; |
| 444 | out_error: |
| 445 | return -ENOMEM; |
| 446 | } |
| 447 | |
| 448 | static int thread__set_comm(struct thread *self, const char *comm) |
| 449 | { |
| 450 | self->comm = strdup(comm); |
| 451 | return self->comm ? 0 : -ENOMEM; |
| 452 | } |
| 453 | |
| 454 | static size_t thread__maps_fprintf(struct thread *self, FILE *fp) |
| 455 | { |
| 456 | struct map *pos; |
| 457 | size_t ret = 0; |
| 458 | |
| 459 | list_for_each_entry(pos, &self->maps, node) |
| 460 | ret += map__fprintf(pos, fp); |
| 461 | |
| 462 | return ret; |
| 463 | } |
| 464 | |
| 465 | static size_t thread__fprintf(struct thread *self, FILE *fp) |
| 466 | { |
| 467 | struct symhist *pos; |
| 468 | int ret = fprintf(fp, "thread: %d %s\n", self->pid, self->comm); |
| 469 | |
| 470 | list_for_each_entry(pos, &self->symhists, node) |
| 471 | ret += symhist__fprintf(pos, fp); |
| 472 | |
| 473 | return ret; |
| 474 | } |
| 475 | |
| 476 | static LIST_HEAD(threads); |
| 477 | |
| 478 | static void threads__add(struct thread *thread) |
| 479 | { |
| 480 | list_add_tail(&thread->node, &threads); |
| 481 | } |
| 482 | |
| 483 | static struct thread *threads__find(pid_t pid) |
| 484 | { |
| 485 | struct thread *pos; |
| 486 | |
| 487 | list_for_each_entry(pos, &threads, node) |
| 488 | if (pos->pid == pid) |
| 489 | return pos; |
| 490 | return NULL; |
| 491 | } |
| 492 | |
| 493 | static struct thread *threads__findnew(pid_t pid) |
| 494 | { |
| 495 | struct thread *thread = threads__find(pid); |
| 496 | |
| 497 | if (thread == NULL) { |
| 498 | thread = thread__new(pid); |
| 499 | if (thread != NULL) |
| 500 | threads__add(thread); |
| 501 | } |
| 502 | |
| 503 | return thread; |
| 504 | } |
| 505 | |
| 506 | static void thread__insert_map(struct thread *self, struct map *map) |
| 507 | { |
| 508 | list_add_tail(&map->node, &self->maps); |
| 509 | } |
| 510 | |
| 511 | static struct map *thread__find_map(struct thread *self, uint64_t ip) |
| 512 | { |
| 513 | if (self == NULL) |
| 514 | return NULL; |
| 515 | |
| 516 | struct map *pos; |
| 517 | |
| 518 | list_for_each_entry(pos, &self->maps, node) |
| 519 | if (ip >= pos->start && ip <= pos->end) |
| 520 | return pos; |
| 521 | |
| 522 | return NULL; |
| 523 | } |
| 524 | |
| 525 | static void threads__fprintf(FILE *fp) |
| 526 | { |
| 527 | struct thread *pos; |
| 528 | |
| 529 | list_for_each_entry(pos, &threads, node) |
| 530 | thread__fprintf(pos, fp); |
| 531 | } |
| 532 | |
| 533 | #if 0 |
| 534 | static std::string resolve_user_symbol(int pid, uint64_t ip) |
| 535 | { |
| 536 | std::string sym = "<unknown>"; |
| 537 | |
| 538 | maps_t &m = maps[pid]; |
| 539 | maps_t::const_iterator mi = m.upper_bound(map(ip)); |
| 540 | if (mi == m.end()) |
| 541 | return sym; |
| 542 | |
| 543 | ip -= mi->start + mi->pgoff; |
| 544 | |
| 545 | symbols_t &s = dsos[mi->dso].syms; |
| 546 | symbols_t::const_iterator si = s.upper_bound(symbol(ip)); |
| 547 | |
| 548 | sym = mi->dso + ": <unknown>"; |
| 549 | |
| 550 | if (si == s.begin()) |
| 551 | return sym; |
| 552 | si--; |
| 553 | |
| 554 | if (si->start <= ip && ip < si->end) |
| 555 | sym = mi->dso + ": " + si->name; |
| 556 | #if 0 |
| 557 | else if (si->start <= ip) |
| 558 | sym = mi->dso + ": ?" + si->name; |
| 559 | #endif |
| 560 | |
| 561 | return sym; |
| 562 | } |
| 563 | #endif |
| 564 | |
| 565 | static void display_help(void) |
| 566 | { |
| 567 | printf( |
| 568 | "Usage: perf-report [<options>]\n" |
| 569 | " -i file --input=<file> # input file\n" |
| 570 | ); |
| 571 | |
| 572 | exit(0); |
| 573 | } |
| 574 | |
| 575 | static void process_options(int argc, char *argv[]) |
| 576 | { |
| 577 | int error = 0; |
| 578 | |
| 579 | for (;;) { |
| 580 | int option_index = 0; |
| 581 | /** Options for getopt */ |
| 582 | static struct option long_options[] = { |
| 583 | {"input", required_argument, NULL, 'i'}, |
| 584 | {"no-user", no_argument, NULL, 'u'}, |
| 585 | {"no-kernel", no_argument, NULL, 'k'}, |
| 586 | {"no-hv", no_argument, NULL, 'h'}, |
| 587 | {NULL, 0, NULL, 0 } |
| 588 | }; |
| 589 | int c = getopt_long(argc, argv, "+:i:kuh", |
| 590 | long_options, &option_index); |
| 591 | if (c == -1) |
| 592 | break; |
| 593 | |
| 594 | switch (c) { |
| 595 | case 'i': input_name = strdup(optarg); break; |
| 596 | case 'k': show_mask &= ~SHOW_KERNEL; break; |
| 597 | case 'u': show_mask &= ~SHOW_USER; break; |
| 598 | case 'h': show_mask &= ~SHOW_HV; break; |
| 599 | default: error = 1; break; |
| 600 | } |
| 601 | } |
| 602 | |
| 603 | if (error) |
| 604 | display_help(); |
| 605 | } |
| 606 | |
| 607 | int cmd_report(int argc, char **argv) |
| 608 | { |
| 609 | unsigned long offset = 0; |
| 610 | unsigned long head = 0; |
| 611 | struct stat stat; |
| 612 | char *buf; |
| 613 | event_t *event; |
| 614 | int ret, rc = EXIT_FAILURE; |
| 615 | unsigned long total = 0; |
| 616 | |
| 617 | page_size = getpagesize(); |
| 618 | |
| 619 | process_options(argc, argv); |
| 620 | |
| 621 | input = open(input_name, O_RDONLY); |
| 622 | if (input < 0) { |
| 623 | perror("failed to open file"); |
| 624 | exit(-1); |
| 625 | } |
| 626 | |
| 627 | ret = fstat(input, &stat); |
| 628 | if (ret < 0) { |
| 629 | perror("failed to stat file"); |
| 630 | exit(-1); |
| 631 | } |
| 632 | |
| 633 | if (!stat.st_size) { |
| 634 | fprintf(stderr, "zero-sized file, nothing to do!\n"); |
| 635 | exit(0); |
| 636 | } |
| 637 | |
| 638 | if (load_kallsyms() < 0) { |
| 639 | perror("failed to open kallsyms"); |
| 640 | return EXIT_FAILURE; |
| 641 | } |
| 642 | |
| 643 | remap: |
| 644 | buf = (char *)mmap(NULL, page_size * mmap_window, PROT_READ, |
| 645 | MAP_SHARED, input, offset); |
| 646 | if (buf == MAP_FAILED) { |
| 647 | perror("failed to mmap file"); |
| 648 | exit(-1); |
| 649 | } |
| 650 | |
| 651 | more: |
| 652 | event = (event_t *)(buf + head); |
| 653 | |
| 654 | if (head + event->header.size >= page_size * mmap_window) { |
| 655 | unsigned long shift = page_size * (head / page_size); |
| 656 | int ret; |
| 657 | |
| 658 | ret = munmap(buf, page_size * mmap_window); |
| 659 | assert(ret == 0); |
| 660 | |
| 661 | offset += shift; |
| 662 | head -= shift; |
| 663 | goto remap; |
| 664 | } |
| 665 | |
| 666 | |
| 667 | if (!event->header.size) { |
| 668 | fprintf(stderr, "zero-sized event at file offset %ld\n", offset + head); |
| 669 | fprintf(stderr, "skipping %ld bytes of events.\n", stat.st_size - offset - head); |
| 670 | goto done; |
| 671 | } |
| 672 | |
| 673 | head += event->header.size; |
| 674 | |
| 675 | if (event->header.misc & PERF_EVENT_MISC_OVERFLOW) { |
| 676 | char level; |
| 677 | int show = 0; |
| 678 | struct dso *dso = NULL; |
| 679 | struct thread *thread = threads__findnew(event->ip.pid); |
| 680 | |
| 681 | if (thread == NULL) |
| 682 | goto done; |
| 683 | |
| 684 | if (event->header.misc & PERF_EVENT_MISC_KERNEL) { |
| 685 | show = SHOW_KERNEL; |
| 686 | level = 'k'; |
| 687 | dso = kernel_dso; |
| 688 | } else if (event->header.misc & PERF_EVENT_MISC_USER) { |
| 689 | show = SHOW_USER; |
| 690 | level = '.'; |
| 691 | struct map *map = thread__find_map(thread, event->ip.ip); |
| 692 | if (map != NULL) |
| 693 | dso = map->dso; |
| 694 | } else { |
| 695 | show = SHOW_HV; |
| 696 | level = 'H'; |
| 697 | } |
| 698 | |
| 699 | if (show & show_mask) { |
| 700 | struct symbol *sym = dso__find_symbol(dso, event->ip.ip); |
| 701 | |
| 702 | if (thread__symbol_incnew(thread, sym, dso, level)) |
| 703 | goto done; |
| 704 | } |
| 705 | total++; |
| 706 | } else switch (event->header.type) { |
| 707 | case PERF_EVENT_MMAP: { |
| 708 | struct thread *thread = threads__findnew(event->mmap.pid); |
| 709 | struct map *map = map__new(&event->mmap); |
| 710 | |
| 711 | if (thread == NULL || map == NULL ) |
| 712 | goto done; |
| 713 | thread__insert_map(thread, map); |
| 714 | break; |
| 715 | } |
| 716 | case PERF_EVENT_COMM: { |
| 717 | struct thread *thread = threads__findnew(event->comm.pid); |
| 718 | |
| 719 | if (thread == NULL || |
| 720 | thread__set_comm(thread, event->comm.comm)) |
| 721 | goto done; |
| 722 | break; |
| 723 | } |
| 724 | } |
| 725 | |
| 726 | if (offset + head < stat.st_size) |
| 727 | goto more; |
| 728 | |
| 729 | rc = EXIT_SUCCESS; |
| 730 | done: |
| 731 | close(input); |
| 732 | //dsos__fprintf(stdout); |
| 733 | threads__fprintf(stdout); |
| 734 | #if 0 |
| 735 | std::map<std::string, int>::iterator hi = hist.begin(); |
| 736 | |
| 737 | while (hi != hist.end()) { |
| 738 | rev_hist.insert(std::pair<int, std::string>(hi->second, hi->first)); |
| 739 | hist.erase(hi++); |
| 740 | } |
| 741 | |
| 742 | std::multimap<int, std::string>::const_iterator ri = rev_hist.begin(); |
| 743 | |
| 744 | while (ri != rev_hist.end()) { |
| 745 | printf(" %5.2f %s\n", (100.0 * ri->first)/total, ri->second.c_str()); |
| 746 | ri++; |
| 747 | } |
| 748 | #endif |
| 749 | return rc; |
| 750 | } |
| 751 | |