Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 1 | /* |
| 2 | * builtin-annotate.c |
| 3 | * |
| 4 | * Builtin annotate command: Analyze the perf.data input file, |
| 5 | * look up and read DSOs and symbol information and display |
| 6 | * a histogram of results, along various sorting keys. |
| 7 | */ |
| 8 | #include "builtin.h" |
| 9 | |
| 10 | #include "util/util.h" |
| 11 | |
| 12 | #include "util/color.h" |
| 13 | #include "util/list.h" |
| 14 | #include "util/cache.h" |
| 15 | #include "util/rbtree.h" |
| 16 | #include "util/symbol.h" |
| 17 | #include "util/string.h" |
| 18 | |
| 19 | #include "perf.h" |
| 20 | |
| 21 | #include "util/parse-options.h" |
| 22 | #include "util/parse-events.h" |
| 23 | |
| 24 | #define SHOW_KERNEL 1 |
| 25 | #define SHOW_USER 2 |
| 26 | #define SHOW_HV 4 |
| 27 | |
Frederic Weisbecker | 971738f | 2009-06-13 00:11:22 +0200 | [diff] [blame] | 28 | #define MIN_GREEN 0.5 |
| 29 | #define MIN_RED 5.0 |
| 30 | |
| 31 | |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 32 | static char const *input_name = "perf.data"; |
Ingo Molnar | 39273ee | 2009-06-06 21:17:03 +0200 | [diff] [blame] | 33 | static char *vmlinux = "vmlinux"; |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 34 | |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 35 | static char default_sort_order[] = "comm,symbol"; |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 36 | static char *sort_order = default_sort_order; |
| 37 | |
| 38 | static int input; |
| 39 | static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV; |
| 40 | |
| 41 | static int dump_trace = 0; |
| 42 | #define dprintf(x...) do { if (dump_trace) printf(x); } while (0) |
| 43 | |
| 44 | static int verbose; |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 45 | |
Frederic Weisbecker | 301406b | 2009-06-13 00:11:21 +0200 | [diff] [blame] | 46 | static int print_line; |
| 47 | |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 48 | static unsigned long page_size; |
| 49 | static unsigned long mmap_window = 32; |
| 50 | |
| 51 | struct ip_event { |
| 52 | struct perf_event_header header; |
| 53 | __u64 ip; |
| 54 | __u32 pid, tid; |
| 55 | }; |
| 56 | |
| 57 | struct mmap_event { |
| 58 | struct perf_event_header header; |
| 59 | __u32 pid, tid; |
| 60 | __u64 start; |
| 61 | __u64 len; |
| 62 | __u64 pgoff; |
| 63 | char filename[PATH_MAX]; |
| 64 | }; |
| 65 | |
| 66 | struct comm_event { |
| 67 | struct perf_event_header header; |
| 68 | __u32 pid, tid; |
| 69 | char comm[16]; |
| 70 | }; |
| 71 | |
| 72 | struct fork_event { |
| 73 | struct perf_event_header header; |
| 74 | __u32 pid, ppid; |
| 75 | }; |
| 76 | |
| 77 | struct period_event { |
| 78 | struct perf_event_header header; |
| 79 | __u64 time; |
| 80 | __u64 id; |
| 81 | __u64 sample_period; |
| 82 | }; |
| 83 | |
| 84 | typedef union event_union { |
| 85 | struct perf_event_header header; |
| 86 | struct ip_event ip; |
| 87 | struct mmap_event mmap; |
| 88 | struct comm_event comm; |
| 89 | struct fork_event fork; |
| 90 | struct period_event period; |
| 91 | } event_t; |
| 92 | |
Frederic Weisbecker | 301406b | 2009-06-13 00:11:21 +0200 | [diff] [blame] | 93 | |
| 94 | struct sym_ext { |
Frederic Weisbecker | 971738f | 2009-06-13 00:11:22 +0200 | [diff] [blame] | 95 | struct rb_node node; |
Frederic Weisbecker | 301406b | 2009-06-13 00:11:21 +0200 | [diff] [blame] | 96 | double percent; |
| 97 | char *path; |
| 98 | }; |
| 99 | |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 100 | static LIST_HEAD(dsos); |
| 101 | static struct dso *kernel_dso; |
| 102 | static struct dso *vdso; |
| 103 | |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 104 | |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 105 | static void dsos__add(struct dso *dso) |
| 106 | { |
| 107 | list_add_tail(&dso->node, &dsos); |
| 108 | } |
| 109 | |
| 110 | static struct dso *dsos__find(const char *name) |
| 111 | { |
| 112 | struct dso *pos; |
| 113 | |
| 114 | list_for_each_entry(pos, &dsos, node) |
| 115 | if (strcmp(pos->name, name) == 0) |
| 116 | return pos; |
| 117 | return NULL; |
| 118 | } |
| 119 | |
| 120 | static struct dso *dsos__findnew(const char *name) |
| 121 | { |
| 122 | struct dso *dso = dsos__find(name); |
| 123 | int nr; |
| 124 | |
| 125 | if (dso) |
| 126 | return dso; |
| 127 | |
| 128 | dso = dso__new(name, 0); |
| 129 | if (!dso) |
| 130 | goto out_delete_dso; |
| 131 | |
| 132 | nr = dso__load(dso, NULL, verbose); |
| 133 | if (nr < 0) { |
| 134 | if (verbose) |
| 135 | fprintf(stderr, "Failed to open: %s\n", name); |
| 136 | goto out_delete_dso; |
| 137 | } |
| 138 | if (!nr && verbose) { |
| 139 | fprintf(stderr, |
| 140 | "No symbols found in: %s, maybe install a debug package?\n", |
| 141 | name); |
| 142 | } |
| 143 | |
| 144 | dsos__add(dso); |
| 145 | |
| 146 | return dso; |
| 147 | |
| 148 | out_delete_dso: |
| 149 | dso__delete(dso); |
| 150 | return NULL; |
| 151 | } |
| 152 | |
| 153 | static void dsos__fprintf(FILE *fp) |
| 154 | { |
| 155 | struct dso *pos; |
| 156 | |
| 157 | list_for_each_entry(pos, &dsos, node) |
| 158 | dso__fprintf(pos, fp); |
| 159 | } |
| 160 | |
Ingo Molnar | 729ff5e2 | 2009-06-11 14:16:15 +0200 | [diff] [blame] | 161 | static struct symbol *vdso__find_symbol(struct dso *dso, __u64 ip) |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 162 | { |
| 163 | return dso__find_symbol(kernel_dso, ip); |
| 164 | } |
| 165 | |
| 166 | static int load_kernel(void) |
| 167 | { |
| 168 | int err; |
| 169 | |
| 170 | kernel_dso = dso__new("[kernel]", 0); |
| 171 | if (!kernel_dso) |
| 172 | return -1; |
| 173 | |
| 174 | err = dso__load_kernel(kernel_dso, vmlinux, NULL, verbose); |
| 175 | if (err) { |
| 176 | dso__delete(kernel_dso); |
| 177 | kernel_dso = NULL; |
| 178 | } else |
| 179 | dsos__add(kernel_dso); |
| 180 | |
| 181 | vdso = dso__new("[vdso]", 0); |
| 182 | if (!vdso) |
| 183 | return -1; |
| 184 | |
| 185 | vdso->find_symbol = vdso__find_symbol; |
| 186 | |
| 187 | dsos__add(vdso); |
| 188 | |
| 189 | return err; |
| 190 | } |
| 191 | |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 192 | struct map { |
| 193 | struct list_head node; |
Ingo Molnar | 729ff5e2 | 2009-06-11 14:16:15 +0200 | [diff] [blame] | 194 | __u64 start; |
| 195 | __u64 end; |
| 196 | __u64 pgoff; |
| 197 | __u64 (*map_ip)(struct map *, __u64); |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 198 | struct dso *dso; |
| 199 | }; |
| 200 | |
Ingo Molnar | 729ff5e2 | 2009-06-11 14:16:15 +0200 | [diff] [blame] | 201 | static __u64 map__map_ip(struct map *map, __u64 ip) |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 202 | { |
| 203 | return ip - map->start + map->pgoff; |
| 204 | } |
| 205 | |
Ingo Molnar | 729ff5e2 | 2009-06-11 14:16:15 +0200 | [diff] [blame] | 206 | static __u64 vdso__map_ip(struct map *map, __u64 ip) |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 207 | { |
| 208 | return ip; |
| 209 | } |
| 210 | |
| 211 | static struct map *map__new(struct mmap_event *event) |
| 212 | { |
| 213 | struct map *self = malloc(sizeof(*self)); |
| 214 | |
| 215 | if (self != NULL) { |
| 216 | const char *filename = event->filename; |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 217 | |
| 218 | self->start = event->start; |
| 219 | self->end = event->start + event->len; |
| 220 | self->pgoff = event->pgoff; |
| 221 | |
| 222 | self->dso = dsos__findnew(filename); |
| 223 | if (self->dso == NULL) |
| 224 | goto out_delete; |
| 225 | |
| 226 | if (self->dso == vdso) |
| 227 | self->map_ip = vdso__map_ip; |
| 228 | else |
| 229 | self->map_ip = map__map_ip; |
| 230 | } |
| 231 | return self; |
| 232 | out_delete: |
| 233 | free(self); |
| 234 | return NULL; |
| 235 | } |
| 236 | |
| 237 | static struct map *map__clone(struct map *self) |
| 238 | { |
| 239 | struct map *map = malloc(sizeof(*self)); |
| 240 | |
| 241 | if (!map) |
| 242 | return NULL; |
| 243 | |
| 244 | memcpy(map, self, sizeof(*self)); |
| 245 | |
| 246 | return map; |
| 247 | } |
| 248 | |
| 249 | static int map__overlap(struct map *l, struct map *r) |
| 250 | { |
| 251 | if (l->start > r->start) { |
| 252 | struct map *t = l; |
| 253 | l = r; |
| 254 | r = t; |
| 255 | } |
| 256 | |
| 257 | if (l->end > r->start) |
| 258 | return 1; |
| 259 | |
| 260 | return 0; |
| 261 | } |
| 262 | |
| 263 | static size_t map__fprintf(struct map *self, FILE *fp) |
| 264 | { |
Ingo Molnar | 729ff5e2 | 2009-06-11 14:16:15 +0200 | [diff] [blame] | 265 | return fprintf(fp, " %Lx-%Lx %Lx %s\n", |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 266 | self->start, self->end, self->pgoff, self->dso->name); |
| 267 | } |
| 268 | |
| 269 | |
| 270 | struct thread { |
| 271 | struct rb_node rb_node; |
| 272 | struct list_head maps; |
| 273 | pid_t pid; |
| 274 | char *comm; |
| 275 | }; |
| 276 | |
| 277 | static struct thread *thread__new(pid_t pid) |
| 278 | { |
| 279 | struct thread *self = malloc(sizeof(*self)); |
| 280 | |
| 281 | if (self != NULL) { |
| 282 | self->pid = pid; |
| 283 | self->comm = malloc(32); |
| 284 | if (self->comm) |
| 285 | snprintf(self->comm, 32, ":%d", self->pid); |
| 286 | INIT_LIST_HEAD(&self->maps); |
| 287 | } |
| 288 | |
| 289 | return self; |
| 290 | } |
| 291 | |
| 292 | static int thread__set_comm(struct thread *self, const char *comm) |
| 293 | { |
| 294 | if (self->comm) |
| 295 | free(self->comm); |
| 296 | self->comm = strdup(comm); |
| 297 | return self->comm ? 0 : -ENOMEM; |
| 298 | } |
| 299 | |
| 300 | static size_t thread__fprintf(struct thread *self, FILE *fp) |
| 301 | { |
| 302 | struct map *pos; |
| 303 | size_t ret = fprintf(fp, "Thread %d %s\n", self->pid, self->comm); |
| 304 | |
| 305 | list_for_each_entry(pos, &self->maps, node) |
| 306 | ret += map__fprintf(pos, fp); |
| 307 | |
| 308 | return ret; |
| 309 | } |
| 310 | |
| 311 | |
| 312 | static struct rb_root threads; |
| 313 | static struct thread *last_match; |
| 314 | |
| 315 | static struct thread *threads__findnew(pid_t pid) |
| 316 | { |
| 317 | struct rb_node **p = &threads.rb_node; |
| 318 | struct rb_node *parent = NULL; |
| 319 | struct thread *th; |
| 320 | |
| 321 | /* |
| 322 | * Font-end cache - PID lookups come in blocks, |
| 323 | * so most of the time we dont have to look up |
| 324 | * the full rbtree: |
| 325 | */ |
| 326 | if (last_match && last_match->pid == pid) |
| 327 | return last_match; |
| 328 | |
| 329 | while (*p != NULL) { |
| 330 | parent = *p; |
| 331 | th = rb_entry(parent, struct thread, rb_node); |
| 332 | |
| 333 | if (th->pid == pid) { |
| 334 | last_match = th; |
| 335 | return th; |
| 336 | } |
| 337 | |
| 338 | if (pid < th->pid) |
| 339 | p = &(*p)->rb_left; |
| 340 | else |
| 341 | p = &(*p)->rb_right; |
| 342 | } |
| 343 | |
| 344 | th = thread__new(pid); |
| 345 | if (th != NULL) { |
| 346 | rb_link_node(&th->rb_node, parent, p); |
| 347 | rb_insert_color(&th->rb_node, &threads); |
| 348 | last_match = th; |
| 349 | } |
| 350 | |
| 351 | return th; |
| 352 | } |
| 353 | |
| 354 | static void thread__insert_map(struct thread *self, struct map *map) |
| 355 | { |
| 356 | struct map *pos, *tmp; |
| 357 | |
| 358 | list_for_each_entry_safe(pos, tmp, &self->maps, node) { |
| 359 | if (map__overlap(pos, map)) { |
| 360 | list_del_init(&pos->node); |
| 361 | /* XXX leaks dsos */ |
| 362 | free(pos); |
| 363 | } |
| 364 | } |
| 365 | |
| 366 | list_add_tail(&map->node, &self->maps); |
| 367 | } |
| 368 | |
| 369 | static int thread__fork(struct thread *self, struct thread *parent) |
| 370 | { |
| 371 | struct map *map; |
| 372 | |
| 373 | if (self->comm) |
| 374 | free(self->comm); |
| 375 | self->comm = strdup(parent->comm); |
| 376 | if (!self->comm) |
| 377 | return -ENOMEM; |
| 378 | |
| 379 | list_for_each_entry(map, &parent->maps, node) { |
| 380 | struct map *new = map__clone(map); |
| 381 | if (!new) |
| 382 | return -ENOMEM; |
| 383 | thread__insert_map(self, new); |
| 384 | } |
| 385 | |
| 386 | return 0; |
| 387 | } |
| 388 | |
Ingo Molnar | 729ff5e2 | 2009-06-11 14:16:15 +0200 | [diff] [blame] | 389 | static struct map *thread__find_map(struct thread *self, __u64 ip) |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 390 | { |
| 391 | struct map *pos; |
| 392 | |
| 393 | if (self == NULL) |
| 394 | return NULL; |
| 395 | |
| 396 | list_for_each_entry(pos, &self->maps, node) |
| 397 | if (ip >= pos->start && ip <= pos->end) |
| 398 | return pos; |
| 399 | |
| 400 | return NULL; |
| 401 | } |
| 402 | |
| 403 | static size_t threads__fprintf(FILE *fp) |
| 404 | { |
| 405 | size_t ret = 0; |
| 406 | struct rb_node *nd; |
| 407 | |
| 408 | for (nd = rb_first(&threads); nd; nd = rb_next(nd)) { |
| 409 | struct thread *pos = rb_entry(nd, struct thread, rb_node); |
| 410 | |
| 411 | ret += thread__fprintf(pos, fp); |
| 412 | } |
| 413 | |
| 414 | return ret; |
| 415 | } |
| 416 | |
| 417 | /* |
| 418 | * histogram, sorted on item, collects counts |
| 419 | */ |
| 420 | |
| 421 | static struct rb_root hist; |
| 422 | |
| 423 | struct hist_entry { |
| 424 | struct rb_node rb_node; |
| 425 | |
| 426 | struct thread *thread; |
| 427 | struct map *map; |
| 428 | struct dso *dso; |
| 429 | struct symbol *sym; |
Ingo Molnar | 729ff5e2 | 2009-06-11 14:16:15 +0200 | [diff] [blame] | 430 | __u64 ip; |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 431 | char level; |
| 432 | |
| 433 | uint32_t count; |
| 434 | }; |
| 435 | |
| 436 | /* |
| 437 | * configurable sorting bits |
| 438 | */ |
| 439 | |
| 440 | struct sort_entry { |
| 441 | struct list_head list; |
| 442 | |
| 443 | char *header; |
| 444 | |
| 445 | int64_t (*cmp)(struct hist_entry *, struct hist_entry *); |
| 446 | int64_t (*collapse)(struct hist_entry *, struct hist_entry *); |
| 447 | size_t (*print)(FILE *fp, struct hist_entry *); |
| 448 | }; |
| 449 | |
| 450 | /* --sort pid */ |
| 451 | |
| 452 | static int64_t |
| 453 | sort__thread_cmp(struct hist_entry *left, struct hist_entry *right) |
| 454 | { |
| 455 | return right->thread->pid - left->thread->pid; |
| 456 | } |
| 457 | |
| 458 | static size_t |
| 459 | sort__thread_print(FILE *fp, struct hist_entry *self) |
| 460 | { |
| 461 | return fprintf(fp, "%16s:%5d", self->thread->comm ?: "", self->thread->pid); |
| 462 | } |
| 463 | |
| 464 | static struct sort_entry sort_thread = { |
| 465 | .header = " Command: Pid", |
| 466 | .cmp = sort__thread_cmp, |
| 467 | .print = sort__thread_print, |
| 468 | }; |
| 469 | |
| 470 | /* --sort comm */ |
| 471 | |
| 472 | static int64_t |
| 473 | sort__comm_cmp(struct hist_entry *left, struct hist_entry *right) |
| 474 | { |
| 475 | return right->thread->pid - left->thread->pid; |
| 476 | } |
| 477 | |
| 478 | static int64_t |
| 479 | sort__comm_collapse(struct hist_entry *left, struct hist_entry *right) |
| 480 | { |
| 481 | char *comm_l = left->thread->comm; |
| 482 | char *comm_r = right->thread->comm; |
| 483 | |
| 484 | if (!comm_l || !comm_r) { |
| 485 | if (!comm_l && !comm_r) |
| 486 | return 0; |
| 487 | else if (!comm_l) |
| 488 | return -1; |
| 489 | else |
| 490 | return 1; |
| 491 | } |
| 492 | |
| 493 | return strcmp(comm_l, comm_r); |
| 494 | } |
| 495 | |
| 496 | static size_t |
| 497 | sort__comm_print(FILE *fp, struct hist_entry *self) |
| 498 | { |
| 499 | return fprintf(fp, "%16s", self->thread->comm); |
| 500 | } |
| 501 | |
| 502 | static struct sort_entry sort_comm = { |
| 503 | .header = " Command", |
| 504 | .cmp = sort__comm_cmp, |
| 505 | .collapse = sort__comm_collapse, |
| 506 | .print = sort__comm_print, |
| 507 | }; |
| 508 | |
| 509 | /* --sort dso */ |
| 510 | |
| 511 | static int64_t |
| 512 | sort__dso_cmp(struct hist_entry *left, struct hist_entry *right) |
| 513 | { |
| 514 | struct dso *dso_l = left->dso; |
| 515 | struct dso *dso_r = right->dso; |
| 516 | |
| 517 | if (!dso_l || !dso_r) { |
| 518 | if (!dso_l && !dso_r) |
| 519 | return 0; |
| 520 | else if (!dso_l) |
| 521 | return -1; |
| 522 | else |
| 523 | return 1; |
| 524 | } |
| 525 | |
| 526 | return strcmp(dso_l->name, dso_r->name); |
| 527 | } |
| 528 | |
| 529 | static size_t |
| 530 | sort__dso_print(FILE *fp, struct hist_entry *self) |
| 531 | { |
| 532 | if (self->dso) |
| 533 | return fprintf(fp, "%-25s", self->dso->name); |
| 534 | |
| 535 | return fprintf(fp, "%016llx ", (__u64)self->ip); |
| 536 | } |
| 537 | |
| 538 | static struct sort_entry sort_dso = { |
| 539 | .header = "Shared Object ", |
| 540 | .cmp = sort__dso_cmp, |
| 541 | .print = sort__dso_print, |
| 542 | }; |
| 543 | |
| 544 | /* --sort symbol */ |
| 545 | |
| 546 | static int64_t |
| 547 | sort__sym_cmp(struct hist_entry *left, struct hist_entry *right) |
| 548 | { |
Ingo Molnar | 729ff5e2 | 2009-06-11 14:16:15 +0200 | [diff] [blame] | 549 | __u64 ip_l, ip_r; |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 550 | |
| 551 | if (left->sym == right->sym) |
| 552 | return 0; |
| 553 | |
| 554 | ip_l = left->sym ? left->sym->start : left->ip; |
| 555 | ip_r = right->sym ? right->sym->start : right->ip; |
| 556 | |
| 557 | return (int64_t)(ip_r - ip_l); |
| 558 | } |
| 559 | |
| 560 | static size_t |
| 561 | sort__sym_print(FILE *fp, struct hist_entry *self) |
| 562 | { |
| 563 | size_t ret = 0; |
| 564 | |
| 565 | if (verbose) |
| 566 | ret += fprintf(fp, "%#018llx ", (__u64)self->ip); |
| 567 | |
| 568 | if (self->sym) { |
| 569 | ret += fprintf(fp, "[%c] %s", |
| 570 | self->dso == kernel_dso ? 'k' : '.', self->sym->name); |
| 571 | } else { |
| 572 | ret += fprintf(fp, "%#016llx", (__u64)self->ip); |
| 573 | } |
| 574 | |
| 575 | return ret; |
| 576 | } |
| 577 | |
| 578 | static struct sort_entry sort_sym = { |
| 579 | .header = "Symbol", |
| 580 | .cmp = sort__sym_cmp, |
| 581 | .print = sort__sym_print, |
| 582 | }; |
| 583 | |
| 584 | static int sort__need_collapse = 0; |
| 585 | |
| 586 | struct sort_dimension { |
| 587 | char *name; |
| 588 | struct sort_entry *entry; |
| 589 | int taken; |
| 590 | }; |
| 591 | |
| 592 | static struct sort_dimension sort_dimensions[] = { |
| 593 | { .name = "pid", .entry = &sort_thread, }, |
| 594 | { .name = "comm", .entry = &sort_comm, }, |
| 595 | { .name = "dso", .entry = &sort_dso, }, |
| 596 | { .name = "symbol", .entry = &sort_sym, }, |
| 597 | }; |
| 598 | |
| 599 | static LIST_HEAD(hist_entry__sort_list); |
| 600 | |
| 601 | static int sort_dimension__add(char *tok) |
| 602 | { |
| 603 | int i; |
| 604 | |
| 605 | for (i = 0; i < ARRAY_SIZE(sort_dimensions); i++) { |
| 606 | struct sort_dimension *sd = &sort_dimensions[i]; |
| 607 | |
| 608 | if (sd->taken) |
| 609 | continue; |
| 610 | |
| 611 | if (strncasecmp(tok, sd->name, strlen(tok))) |
| 612 | continue; |
| 613 | |
| 614 | if (sd->entry->collapse) |
| 615 | sort__need_collapse = 1; |
| 616 | |
| 617 | list_add_tail(&sd->entry->list, &hist_entry__sort_list); |
| 618 | sd->taken = 1; |
| 619 | |
| 620 | return 0; |
| 621 | } |
| 622 | |
| 623 | return -ESRCH; |
| 624 | } |
| 625 | |
| 626 | static int64_t |
| 627 | hist_entry__cmp(struct hist_entry *left, struct hist_entry *right) |
| 628 | { |
| 629 | struct sort_entry *se; |
| 630 | int64_t cmp = 0; |
| 631 | |
| 632 | list_for_each_entry(se, &hist_entry__sort_list, list) { |
| 633 | cmp = se->cmp(left, right); |
| 634 | if (cmp) |
| 635 | break; |
| 636 | } |
| 637 | |
| 638 | return cmp; |
| 639 | } |
| 640 | |
| 641 | static int64_t |
| 642 | hist_entry__collapse(struct hist_entry *left, struct hist_entry *right) |
| 643 | { |
| 644 | struct sort_entry *se; |
| 645 | int64_t cmp = 0; |
| 646 | |
| 647 | list_for_each_entry(se, &hist_entry__sort_list, list) { |
| 648 | int64_t (*f)(struct hist_entry *, struct hist_entry *); |
| 649 | |
| 650 | f = se->collapse ?: se->cmp; |
| 651 | |
| 652 | cmp = f(left, right); |
| 653 | if (cmp) |
| 654 | break; |
| 655 | } |
| 656 | |
| 657 | return cmp; |
| 658 | } |
| 659 | |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 660 | /* |
| 661 | * collect histogram counts |
| 662 | */ |
Ingo Molnar | 729ff5e2 | 2009-06-11 14:16:15 +0200 | [diff] [blame] | 663 | static void hist_hit(struct hist_entry *he, __u64 ip) |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 664 | { |
| 665 | unsigned int sym_size, offset; |
| 666 | struct symbol *sym = he->sym; |
| 667 | |
| 668 | he->count++; |
| 669 | |
| 670 | if (!sym || !sym->hist) |
| 671 | return; |
| 672 | |
| 673 | sym_size = sym->end - sym->start; |
| 674 | offset = ip - sym->start; |
| 675 | |
| 676 | if (offset >= sym_size) |
| 677 | return; |
| 678 | |
| 679 | sym->hist_sum++; |
| 680 | sym->hist[offset]++; |
| 681 | |
| 682 | if (verbose >= 3) |
| 683 | printf("%p %s: count++ [ip: %p, %08Lx] => %Ld\n", |
Arjan van de Ven | 7d37a0c | 2009-06-06 20:36:38 +0200 | [diff] [blame] | 684 | (void *)(unsigned long)he->sym->start, |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 685 | he->sym->name, |
Arjan van de Ven | 7d37a0c | 2009-06-06 20:36:38 +0200 | [diff] [blame] | 686 | (void *)(unsigned long)ip, ip - he->sym->start, |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 687 | sym->hist[offset]); |
| 688 | } |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 689 | |
| 690 | static int |
| 691 | hist_entry__add(struct thread *thread, struct map *map, struct dso *dso, |
Ingo Molnar | 729ff5e2 | 2009-06-11 14:16:15 +0200 | [diff] [blame] | 692 | struct symbol *sym, __u64 ip, char level) |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 693 | { |
| 694 | struct rb_node **p = &hist.rb_node; |
| 695 | struct rb_node *parent = NULL; |
| 696 | struct hist_entry *he; |
| 697 | struct hist_entry entry = { |
| 698 | .thread = thread, |
| 699 | .map = map, |
| 700 | .dso = dso, |
| 701 | .sym = sym, |
| 702 | .ip = ip, |
| 703 | .level = level, |
| 704 | .count = 1, |
| 705 | }; |
| 706 | int cmp; |
| 707 | |
| 708 | while (*p != NULL) { |
| 709 | parent = *p; |
| 710 | he = rb_entry(parent, struct hist_entry, rb_node); |
| 711 | |
| 712 | cmp = hist_entry__cmp(&entry, he); |
| 713 | |
| 714 | if (!cmp) { |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 715 | hist_hit(he, ip); |
| 716 | |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 717 | return 0; |
| 718 | } |
| 719 | |
| 720 | if (cmp < 0) |
| 721 | p = &(*p)->rb_left; |
| 722 | else |
| 723 | p = &(*p)->rb_right; |
| 724 | } |
| 725 | |
| 726 | he = malloc(sizeof(*he)); |
| 727 | if (!he) |
| 728 | return -ENOMEM; |
| 729 | *he = entry; |
| 730 | rb_link_node(&he->rb_node, parent, p); |
| 731 | rb_insert_color(&he->rb_node, &hist); |
| 732 | |
| 733 | return 0; |
| 734 | } |
| 735 | |
| 736 | static void hist_entry__free(struct hist_entry *he) |
| 737 | { |
| 738 | free(he); |
| 739 | } |
| 740 | |
| 741 | /* |
| 742 | * collapse the histogram |
| 743 | */ |
| 744 | |
| 745 | static struct rb_root collapse_hists; |
| 746 | |
| 747 | static void collapse__insert_entry(struct hist_entry *he) |
| 748 | { |
| 749 | struct rb_node **p = &collapse_hists.rb_node; |
| 750 | struct rb_node *parent = NULL; |
| 751 | struct hist_entry *iter; |
| 752 | int64_t cmp; |
| 753 | |
| 754 | while (*p != NULL) { |
| 755 | parent = *p; |
| 756 | iter = rb_entry(parent, struct hist_entry, rb_node); |
| 757 | |
| 758 | cmp = hist_entry__collapse(iter, he); |
| 759 | |
| 760 | if (!cmp) { |
| 761 | iter->count += he->count; |
| 762 | hist_entry__free(he); |
| 763 | return; |
| 764 | } |
| 765 | |
| 766 | if (cmp < 0) |
| 767 | p = &(*p)->rb_left; |
| 768 | else |
| 769 | p = &(*p)->rb_right; |
| 770 | } |
| 771 | |
| 772 | rb_link_node(&he->rb_node, parent, p); |
| 773 | rb_insert_color(&he->rb_node, &collapse_hists); |
| 774 | } |
| 775 | |
| 776 | static void collapse__resort(void) |
| 777 | { |
| 778 | struct rb_node *next; |
| 779 | struct hist_entry *n; |
| 780 | |
| 781 | if (!sort__need_collapse) |
| 782 | return; |
| 783 | |
| 784 | next = rb_first(&hist); |
| 785 | while (next) { |
| 786 | n = rb_entry(next, struct hist_entry, rb_node); |
| 787 | next = rb_next(&n->rb_node); |
| 788 | |
| 789 | rb_erase(&n->rb_node, &hist); |
| 790 | collapse__insert_entry(n); |
| 791 | } |
| 792 | } |
| 793 | |
| 794 | /* |
| 795 | * reverse the map, sort on count. |
| 796 | */ |
| 797 | |
| 798 | static struct rb_root output_hists; |
| 799 | |
| 800 | static void output__insert_entry(struct hist_entry *he) |
| 801 | { |
| 802 | struct rb_node **p = &output_hists.rb_node; |
| 803 | struct rb_node *parent = NULL; |
| 804 | struct hist_entry *iter; |
| 805 | |
| 806 | while (*p != NULL) { |
| 807 | parent = *p; |
| 808 | iter = rb_entry(parent, struct hist_entry, rb_node); |
| 809 | |
| 810 | if (he->count > iter->count) |
| 811 | p = &(*p)->rb_left; |
| 812 | else |
| 813 | p = &(*p)->rb_right; |
| 814 | } |
| 815 | |
| 816 | rb_link_node(&he->rb_node, parent, p); |
| 817 | rb_insert_color(&he->rb_node, &output_hists); |
| 818 | } |
| 819 | |
| 820 | static void output__resort(void) |
| 821 | { |
| 822 | struct rb_node *next; |
| 823 | struct hist_entry *n; |
| 824 | struct rb_root *tree = &hist; |
| 825 | |
| 826 | if (sort__need_collapse) |
| 827 | tree = &collapse_hists; |
| 828 | |
| 829 | next = rb_first(tree); |
| 830 | |
| 831 | while (next) { |
| 832 | n = rb_entry(next, struct hist_entry, rb_node); |
| 833 | next = rb_next(&n->rb_node); |
| 834 | |
| 835 | rb_erase(&n->rb_node, tree); |
| 836 | output__insert_entry(n); |
| 837 | } |
| 838 | } |
| 839 | |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 840 | static void register_idle_thread(void) |
| 841 | { |
| 842 | struct thread *thread = threads__findnew(0); |
| 843 | |
| 844 | if (thread == NULL || |
| 845 | thread__set_comm(thread, "[idle]")) { |
| 846 | fprintf(stderr, "problem inserting idle task.\n"); |
| 847 | exit(-1); |
| 848 | } |
| 849 | } |
| 850 | |
| 851 | static unsigned long total = 0, |
| 852 | total_mmap = 0, |
| 853 | total_comm = 0, |
| 854 | total_fork = 0, |
| 855 | total_unknown = 0; |
| 856 | |
| 857 | static int |
| 858 | process_overflow_event(event_t *event, unsigned long offset, unsigned long head) |
| 859 | { |
| 860 | char level; |
| 861 | int show = 0; |
| 862 | struct dso *dso = NULL; |
| 863 | struct thread *thread = threads__findnew(event->ip.pid); |
Ingo Molnar | 729ff5e2 | 2009-06-11 14:16:15 +0200 | [diff] [blame] | 864 | __u64 ip = event->ip.ip; |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 865 | struct map *map = NULL; |
| 866 | |
| 867 | dprintf("%p [%p]: PERF_EVENT (IP, %d): %d: %p\n", |
| 868 | (void *)(offset + head), |
| 869 | (void *)(long)(event->header.size), |
| 870 | event->header.misc, |
| 871 | event->ip.pid, |
| 872 | (void *)(long)ip); |
| 873 | |
| 874 | dprintf(" ... thread: %s:%d\n", thread->comm, thread->pid); |
| 875 | |
| 876 | if (thread == NULL) { |
| 877 | fprintf(stderr, "problem processing %d event, skipping it.\n", |
| 878 | event->header.type); |
| 879 | return -1; |
| 880 | } |
| 881 | |
| 882 | if (event->header.misc & PERF_EVENT_MISC_KERNEL) { |
| 883 | show = SHOW_KERNEL; |
| 884 | level = 'k'; |
| 885 | |
| 886 | dso = kernel_dso; |
| 887 | |
| 888 | dprintf(" ...... dso: %s\n", dso->name); |
| 889 | |
| 890 | } else if (event->header.misc & PERF_EVENT_MISC_USER) { |
| 891 | |
| 892 | show = SHOW_USER; |
| 893 | level = '.'; |
| 894 | |
| 895 | map = thread__find_map(thread, ip); |
| 896 | if (map != NULL) { |
| 897 | ip = map->map_ip(map, ip); |
| 898 | dso = map->dso; |
| 899 | } else { |
| 900 | /* |
| 901 | * If this is outside of all known maps, |
| 902 | * and is a negative address, try to look it |
| 903 | * up in the kernel dso, as it might be a |
| 904 | * vsyscall (which executes in user-mode): |
| 905 | */ |
| 906 | if ((long long)ip < 0) |
| 907 | dso = kernel_dso; |
| 908 | } |
| 909 | dprintf(" ...... dso: %s\n", dso ? dso->name : "<not found>"); |
| 910 | |
| 911 | } else { |
| 912 | show = SHOW_HV; |
| 913 | level = 'H'; |
| 914 | dprintf(" ...... dso: [hypervisor]\n"); |
| 915 | } |
| 916 | |
| 917 | if (show & show_mask) { |
| 918 | struct symbol *sym = NULL; |
| 919 | |
| 920 | if (dso) |
| 921 | sym = dso->find_symbol(dso, ip); |
| 922 | |
| 923 | if (hist_entry__add(thread, map, dso, sym, ip, level)) { |
| 924 | fprintf(stderr, |
| 925 | "problem incrementing symbol count, skipping event\n"); |
| 926 | return -1; |
| 927 | } |
| 928 | } |
| 929 | total++; |
| 930 | |
| 931 | return 0; |
| 932 | } |
| 933 | |
| 934 | static int |
| 935 | process_mmap_event(event_t *event, unsigned long offset, unsigned long head) |
| 936 | { |
| 937 | struct thread *thread = threads__findnew(event->mmap.pid); |
| 938 | struct map *map = map__new(&event->mmap); |
| 939 | |
| 940 | dprintf("%p [%p]: PERF_EVENT_MMAP %d: [%p(%p) @ %p]: %s\n", |
| 941 | (void *)(offset + head), |
| 942 | (void *)(long)(event->header.size), |
| 943 | event->mmap.pid, |
| 944 | (void *)(long)event->mmap.start, |
| 945 | (void *)(long)event->mmap.len, |
| 946 | (void *)(long)event->mmap.pgoff, |
| 947 | event->mmap.filename); |
| 948 | |
| 949 | if (thread == NULL || map == NULL) { |
| 950 | dprintf("problem processing PERF_EVENT_MMAP, skipping event.\n"); |
| 951 | return 0; |
| 952 | } |
| 953 | |
| 954 | thread__insert_map(thread, map); |
| 955 | total_mmap++; |
| 956 | |
| 957 | return 0; |
| 958 | } |
| 959 | |
| 960 | static int |
| 961 | process_comm_event(event_t *event, unsigned long offset, unsigned long head) |
| 962 | { |
| 963 | struct thread *thread = threads__findnew(event->comm.pid); |
| 964 | |
| 965 | dprintf("%p [%p]: PERF_EVENT_COMM: %s:%d\n", |
| 966 | (void *)(offset + head), |
| 967 | (void *)(long)(event->header.size), |
| 968 | event->comm.comm, event->comm.pid); |
| 969 | |
| 970 | if (thread == NULL || |
| 971 | thread__set_comm(thread, event->comm.comm)) { |
| 972 | dprintf("problem processing PERF_EVENT_COMM, skipping event.\n"); |
| 973 | return -1; |
| 974 | } |
| 975 | total_comm++; |
| 976 | |
| 977 | return 0; |
| 978 | } |
| 979 | |
| 980 | static int |
| 981 | process_fork_event(event_t *event, unsigned long offset, unsigned long head) |
| 982 | { |
| 983 | struct thread *thread = threads__findnew(event->fork.pid); |
| 984 | struct thread *parent = threads__findnew(event->fork.ppid); |
| 985 | |
| 986 | dprintf("%p [%p]: PERF_EVENT_FORK: %d:%d\n", |
| 987 | (void *)(offset + head), |
| 988 | (void *)(long)(event->header.size), |
| 989 | event->fork.pid, event->fork.ppid); |
| 990 | |
| 991 | if (!thread || !parent || thread__fork(thread, parent)) { |
| 992 | dprintf("problem processing PERF_EVENT_FORK, skipping event.\n"); |
| 993 | return -1; |
| 994 | } |
| 995 | total_fork++; |
| 996 | |
| 997 | return 0; |
| 998 | } |
| 999 | |
| 1000 | static int |
| 1001 | process_period_event(event_t *event, unsigned long offset, unsigned long head) |
| 1002 | { |
| 1003 | dprintf("%p [%p]: PERF_EVENT_PERIOD: time:%Ld, id:%Ld: period:%Ld\n", |
| 1004 | (void *)(offset + head), |
| 1005 | (void *)(long)(event->header.size), |
| 1006 | event->period.time, |
| 1007 | event->period.id, |
| 1008 | event->period.sample_period); |
| 1009 | |
| 1010 | return 0; |
| 1011 | } |
| 1012 | |
| 1013 | static int |
| 1014 | process_event(event_t *event, unsigned long offset, unsigned long head) |
| 1015 | { |
| 1016 | if (event->header.misc & PERF_EVENT_MISC_OVERFLOW) |
| 1017 | return process_overflow_event(event, offset, head); |
| 1018 | |
| 1019 | switch (event->header.type) { |
| 1020 | case PERF_EVENT_MMAP: |
| 1021 | return process_mmap_event(event, offset, head); |
| 1022 | |
| 1023 | case PERF_EVENT_COMM: |
| 1024 | return process_comm_event(event, offset, head); |
| 1025 | |
| 1026 | case PERF_EVENT_FORK: |
| 1027 | return process_fork_event(event, offset, head); |
| 1028 | |
| 1029 | case PERF_EVENT_PERIOD: |
| 1030 | return process_period_event(event, offset, head); |
| 1031 | /* |
| 1032 | * We dont process them right now but they are fine: |
| 1033 | */ |
| 1034 | |
| 1035 | case PERF_EVENT_THROTTLE: |
| 1036 | case PERF_EVENT_UNTHROTTLE: |
| 1037 | return 0; |
| 1038 | |
| 1039 | default: |
| 1040 | return -1; |
| 1041 | } |
| 1042 | |
| 1043 | return 0; |
| 1044 | } |
| 1045 | |
Frederic Weisbecker | 971738f | 2009-06-13 00:11:22 +0200 | [diff] [blame] | 1046 | static char *get_color(double percent) |
| 1047 | { |
| 1048 | char *color = PERF_COLOR_NORMAL; |
| 1049 | |
| 1050 | /* |
| 1051 | * We color high-overhead entries in red, mid-overhead |
| 1052 | * entries in green - and keep the low overhead places |
| 1053 | * normal: |
| 1054 | */ |
| 1055 | if (percent >= MIN_RED) |
| 1056 | color = PERF_COLOR_RED; |
| 1057 | else { |
| 1058 | if (percent > MIN_GREEN) |
| 1059 | color = PERF_COLOR_GREEN; |
| 1060 | } |
| 1061 | return color; |
| 1062 | } |
| 1063 | |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 1064 | static int |
Ingo Molnar | 729ff5e2 | 2009-06-11 14:16:15 +0200 | [diff] [blame] | 1065 | parse_line(FILE *file, struct symbol *sym, __u64 start, __u64 len) |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 1066 | { |
| 1067 | char *line = NULL, *tmp, *tmp2; |
Frederic Weisbecker | 301406b | 2009-06-13 00:11:21 +0200 | [diff] [blame] | 1068 | static const char *prev_line; |
| 1069 | static const char *prev_color; |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 1070 | unsigned int offset; |
| 1071 | size_t line_len; |
| 1072 | __u64 line_ip; |
| 1073 | int ret; |
| 1074 | char *c; |
| 1075 | |
| 1076 | if (getline(&line, &line_len, file) < 0) |
| 1077 | return -1; |
| 1078 | if (!line) |
| 1079 | return -1; |
| 1080 | |
| 1081 | c = strchr(line, '\n'); |
| 1082 | if (c) |
| 1083 | *c = 0; |
| 1084 | |
| 1085 | line_ip = -1; |
| 1086 | offset = 0; |
| 1087 | ret = -2; |
| 1088 | |
| 1089 | /* |
| 1090 | * Strip leading spaces: |
| 1091 | */ |
| 1092 | tmp = line; |
| 1093 | while (*tmp) { |
| 1094 | if (*tmp != ' ') |
| 1095 | break; |
| 1096 | tmp++; |
| 1097 | } |
| 1098 | |
| 1099 | if (*tmp) { |
| 1100 | /* |
| 1101 | * Parse hexa addresses followed by ':' |
| 1102 | */ |
| 1103 | line_ip = strtoull(tmp, &tmp2, 16); |
| 1104 | if (*tmp2 != ':') |
| 1105 | line_ip = -1; |
| 1106 | } |
| 1107 | |
| 1108 | if (line_ip != -1) { |
Frederic Weisbecker | 301406b | 2009-06-13 00:11:21 +0200 | [diff] [blame] | 1109 | const char *path = NULL; |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 1110 | unsigned int hits = 0; |
| 1111 | double percent = 0.0; |
Frederic Weisbecker | 971738f | 2009-06-13 00:11:22 +0200 | [diff] [blame] | 1112 | char *color; |
Frederic Weisbecker | 301406b | 2009-06-13 00:11:21 +0200 | [diff] [blame] | 1113 | struct sym_ext *sym_ext = sym->priv; |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 1114 | |
| 1115 | offset = line_ip - start; |
| 1116 | if (offset < len) |
| 1117 | hits = sym->hist[offset]; |
| 1118 | |
Frederic Weisbecker | c17c2db | 2009-06-13 17:39:23 +0200 | [diff] [blame^] | 1119 | if (offset < len && sym_ext) { |
Frederic Weisbecker | 301406b | 2009-06-13 00:11:21 +0200 | [diff] [blame] | 1120 | path = sym_ext[offset].path; |
| 1121 | percent = sym_ext[offset].percent; |
| 1122 | } else if (sym->hist_sum) |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 1123 | percent = 100.0 * hits / sym->hist_sum; |
| 1124 | |
Frederic Weisbecker | 971738f | 2009-06-13 00:11:22 +0200 | [diff] [blame] | 1125 | color = get_color(percent); |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 1126 | |
Frederic Weisbecker | 301406b | 2009-06-13 00:11:21 +0200 | [diff] [blame] | 1127 | /* |
| 1128 | * Also color the filename and line if needed, with |
| 1129 | * the same color than the percentage. Don't print it |
| 1130 | * twice for close colored ip with the same filename:line |
| 1131 | */ |
| 1132 | if (path) { |
| 1133 | if (!prev_line || strcmp(prev_line, path) |
| 1134 | || color != prev_color) { |
| 1135 | color_fprintf(stdout, color, " %s", path); |
| 1136 | prev_line = path; |
| 1137 | prev_color = color; |
| 1138 | } |
| 1139 | } |
| 1140 | |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 1141 | color_fprintf(stdout, color, " %7.2f", percent); |
| 1142 | printf(" : "); |
| 1143 | color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", line); |
| 1144 | } else { |
| 1145 | if (!*line) |
| 1146 | printf(" :\n"); |
| 1147 | else |
| 1148 | printf(" : %s\n", line); |
| 1149 | } |
| 1150 | |
| 1151 | return 0; |
| 1152 | } |
| 1153 | |
Frederic Weisbecker | 971738f | 2009-06-13 00:11:22 +0200 | [diff] [blame] | 1154 | static struct rb_root root_sym_ext; |
| 1155 | |
| 1156 | static void insert_source_line(struct sym_ext *sym_ext) |
| 1157 | { |
| 1158 | struct sym_ext *iter; |
| 1159 | struct rb_node **p = &root_sym_ext.rb_node; |
| 1160 | struct rb_node *parent = NULL; |
| 1161 | |
| 1162 | while (*p != NULL) { |
| 1163 | parent = *p; |
| 1164 | iter = rb_entry(parent, struct sym_ext, node); |
| 1165 | |
| 1166 | if (sym_ext->percent > iter->percent) |
| 1167 | p = &(*p)->rb_left; |
| 1168 | else |
| 1169 | p = &(*p)->rb_right; |
| 1170 | } |
| 1171 | |
| 1172 | rb_link_node(&sym_ext->node, parent, p); |
| 1173 | rb_insert_color(&sym_ext->node, &root_sym_ext); |
| 1174 | } |
| 1175 | |
Frederic Weisbecker | 301406b | 2009-06-13 00:11:21 +0200 | [diff] [blame] | 1176 | static void free_source_line(struct symbol *sym, int len) |
| 1177 | { |
| 1178 | struct sym_ext *sym_ext = sym->priv; |
| 1179 | int i; |
| 1180 | |
| 1181 | if (!sym_ext) |
| 1182 | return; |
| 1183 | |
| 1184 | for (i = 0; i < len; i++) |
| 1185 | free(sym_ext[i].path); |
| 1186 | free(sym_ext); |
| 1187 | |
| 1188 | sym->priv = NULL; |
Frederic Weisbecker | 971738f | 2009-06-13 00:11:22 +0200 | [diff] [blame] | 1189 | root_sym_ext = RB_ROOT; |
Frederic Weisbecker | 301406b | 2009-06-13 00:11:21 +0200 | [diff] [blame] | 1190 | } |
| 1191 | |
| 1192 | /* Get the filename:line for the colored entries */ |
Frederic Weisbecker | c17c2db | 2009-06-13 17:39:23 +0200 | [diff] [blame^] | 1193 | static void |
| 1194 | get_source_line(struct symbol *sym, __u64 start, int len, char *filename) |
Frederic Weisbecker | 301406b | 2009-06-13 00:11:21 +0200 | [diff] [blame] | 1195 | { |
| 1196 | int i; |
| 1197 | char cmd[PATH_MAX * 2]; |
| 1198 | struct sym_ext *sym_ext; |
| 1199 | |
| 1200 | if (!sym->hist_sum) |
| 1201 | return; |
| 1202 | |
| 1203 | sym->priv = calloc(len, sizeof(struct sym_ext)); |
| 1204 | if (!sym->priv) |
| 1205 | return; |
| 1206 | |
| 1207 | sym_ext = sym->priv; |
| 1208 | |
| 1209 | for (i = 0; i < len; i++) { |
| 1210 | char *path = NULL; |
| 1211 | size_t line_len; |
| 1212 | __u64 offset; |
| 1213 | FILE *fp; |
| 1214 | |
| 1215 | sym_ext[i].percent = 100.0 * sym->hist[i] / sym->hist_sum; |
| 1216 | if (sym_ext[i].percent <= 0.5) |
| 1217 | continue; |
| 1218 | |
| 1219 | offset = start + i; |
Frederic Weisbecker | c17c2db | 2009-06-13 17:39:23 +0200 | [diff] [blame^] | 1220 | sprintf(cmd, "addr2line -e %s %016llx", filename, offset); |
Frederic Weisbecker | 301406b | 2009-06-13 00:11:21 +0200 | [diff] [blame] | 1221 | fp = popen(cmd, "r"); |
| 1222 | if (!fp) |
| 1223 | continue; |
| 1224 | |
| 1225 | if (getline(&path, &line_len, fp) < 0 || !line_len) |
| 1226 | goto next; |
| 1227 | |
Frederic Weisbecker | c17c2db | 2009-06-13 17:39:23 +0200 | [diff] [blame^] | 1228 | sym_ext[i].path = malloc(sizeof(char) * line_len + 1); |
Frederic Weisbecker | 301406b | 2009-06-13 00:11:21 +0200 | [diff] [blame] | 1229 | if (!sym_ext[i].path) |
| 1230 | goto next; |
| 1231 | |
| 1232 | strcpy(sym_ext[i].path, path); |
Frederic Weisbecker | 971738f | 2009-06-13 00:11:22 +0200 | [diff] [blame] | 1233 | insert_source_line(&sym_ext[i]); |
Frederic Weisbecker | 301406b | 2009-06-13 00:11:21 +0200 | [diff] [blame] | 1234 | |
| 1235 | next: |
| 1236 | pclose(fp); |
| 1237 | } |
| 1238 | } |
| 1239 | |
Frederic Weisbecker | 971738f | 2009-06-13 00:11:22 +0200 | [diff] [blame] | 1240 | static void print_summary(char *filename) |
| 1241 | { |
| 1242 | struct sym_ext *sym_ext; |
| 1243 | struct rb_node *node; |
| 1244 | |
| 1245 | printf("\nSorted summary for file %s\n", filename); |
| 1246 | printf("----------------------------------------------\n\n"); |
| 1247 | |
| 1248 | if (RB_EMPTY_ROOT(&root_sym_ext)) { |
| 1249 | printf(" Nothing higher than %1.1f%%\n", MIN_GREEN); |
| 1250 | return; |
| 1251 | } |
| 1252 | |
| 1253 | node = rb_first(&root_sym_ext); |
| 1254 | while (node) { |
| 1255 | double percent; |
| 1256 | char *color; |
| 1257 | char *path; |
| 1258 | |
| 1259 | sym_ext = rb_entry(node, struct sym_ext, node); |
| 1260 | percent = sym_ext->percent; |
| 1261 | color = get_color(percent); |
| 1262 | path = sym_ext->path; |
| 1263 | |
| 1264 | color_fprintf(stdout, color, " %7.2f %s", percent, path); |
| 1265 | node = rb_next(node); |
| 1266 | } |
| 1267 | } |
| 1268 | |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 1269 | static void annotate_sym(struct dso *dso, struct symbol *sym) |
| 1270 | { |
| 1271 | char *filename = dso->name; |
Ingo Molnar | 729ff5e2 | 2009-06-11 14:16:15 +0200 | [diff] [blame] | 1272 | __u64 start, end, len; |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 1273 | char command[PATH_MAX*2]; |
| 1274 | FILE *file; |
| 1275 | |
| 1276 | if (!filename) |
| 1277 | return; |
| 1278 | if (dso == kernel_dso) |
| 1279 | filename = vmlinux; |
| 1280 | |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 1281 | start = sym->obj_start; |
| 1282 | if (!start) |
| 1283 | start = sym->start; |
| 1284 | |
| 1285 | end = start + sym->end - sym->start + 1; |
| 1286 | len = sym->end - sym->start; |
| 1287 | |
Frederic Weisbecker | 971738f | 2009-06-13 00:11:22 +0200 | [diff] [blame] | 1288 | if (print_line) { |
Frederic Weisbecker | c17c2db | 2009-06-13 17:39:23 +0200 | [diff] [blame^] | 1289 | get_source_line(sym, start, len, filename); |
Frederic Weisbecker | 971738f | 2009-06-13 00:11:22 +0200 | [diff] [blame] | 1290 | print_summary(filename); |
| 1291 | } |
| 1292 | |
| 1293 | printf("\n\n------------------------------------------------\n"); |
| 1294 | printf(" Percent | Source code & Disassembly of %s\n", filename); |
| 1295 | printf("------------------------------------------------\n"); |
| 1296 | |
| 1297 | if (verbose >= 2) |
| 1298 | printf("annotating [%p] %30s : [%p] %30s\n", dso, dso->name, sym, sym->name); |
Frederic Weisbecker | 301406b | 2009-06-13 00:11:21 +0200 | [diff] [blame] | 1299 | |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 1300 | sprintf(command, "objdump --start-address=0x%016Lx --stop-address=0x%016Lx -dS %s", (__u64)start, (__u64)end, filename); |
| 1301 | |
| 1302 | if (verbose >= 3) |
| 1303 | printf("doing: %s\n", command); |
| 1304 | |
| 1305 | file = popen(command, "r"); |
| 1306 | if (!file) |
| 1307 | return; |
| 1308 | |
| 1309 | while (!feof(file)) { |
| 1310 | if (parse_line(file, sym, start, len) < 0) |
| 1311 | break; |
| 1312 | } |
| 1313 | |
| 1314 | pclose(file); |
Frederic Weisbecker | 971738f | 2009-06-13 00:11:22 +0200 | [diff] [blame] | 1315 | if (print_line) |
| 1316 | free_source_line(sym, len); |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 1317 | } |
| 1318 | |
| 1319 | static void find_annotations(void) |
| 1320 | { |
| 1321 | struct rb_node *nd; |
| 1322 | struct dso *dso; |
| 1323 | int count = 0; |
| 1324 | |
| 1325 | list_for_each_entry(dso, &dsos, node) { |
| 1326 | |
| 1327 | for (nd = rb_first(&dso->syms); nd; nd = rb_next(nd)) { |
| 1328 | struct symbol *sym = rb_entry(nd, struct symbol, rb_node); |
| 1329 | |
| 1330 | if (sym->hist) { |
| 1331 | annotate_sym(dso, sym); |
| 1332 | count++; |
| 1333 | } |
| 1334 | } |
| 1335 | } |
| 1336 | |
| 1337 | if (!count) |
| 1338 | printf(" Error: symbol '%s' not present amongst the samples.\n", sym_hist_filter); |
| 1339 | } |
| 1340 | |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 1341 | static int __cmd_annotate(void) |
| 1342 | { |
| 1343 | int ret, rc = EXIT_FAILURE; |
| 1344 | unsigned long offset = 0; |
| 1345 | unsigned long head = 0; |
| 1346 | struct stat stat; |
| 1347 | event_t *event; |
| 1348 | uint32_t size; |
| 1349 | char *buf; |
| 1350 | |
| 1351 | register_idle_thread(); |
| 1352 | |
| 1353 | input = open(input_name, O_RDONLY); |
| 1354 | if (input < 0) { |
| 1355 | perror("failed to open file"); |
| 1356 | exit(-1); |
| 1357 | } |
| 1358 | |
| 1359 | ret = fstat(input, &stat); |
| 1360 | if (ret < 0) { |
| 1361 | perror("failed to stat file"); |
| 1362 | exit(-1); |
| 1363 | } |
| 1364 | |
| 1365 | if (!stat.st_size) { |
| 1366 | fprintf(stderr, "zero-sized file, nothing to do!\n"); |
| 1367 | exit(0); |
| 1368 | } |
| 1369 | |
| 1370 | if (load_kernel() < 0) { |
| 1371 | perror("failed to load kernel symbols"); |
| 1372 | return EXIT_FAILURE; |
| 1373 | } |
| 1374 | |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 1375 | remap: |
| 1376 | buf = (char *)mmap(NULL, page_size * mmap_window, PROT_READ, |
| 1377 | MAP_SHARED, input, offset); |
| 1378 | if (buf == MAP_FAILED) { |
| 1379 | perror("failed to mmap file"); |
| 1380 | exit(-1); |
| 1381 | } |
| 1382 | |
| 1383 | more: |
| 1384 | event = (event_t *)(buf + head); |
| 1385 | |
| 1386 | size = event->header.size; |
| 1387 | if (!size) |
| 1388 | size = 8; |
| 1389 | |
| 1390 | if (head + event->header.size >= page_size * mmap_window) { |
| 1391 | unsigned long shift = page_size * (head / page_size); |
| 1392 | int ret; |
| 1393 | |
| 1394 | ret = munmap(buf, page_size * mmap_window); |
| 1395 | assert(ret == 0); |
| 1396 | |
| 1397 | offset += shift; |
| 1398 | head -= shift; |
| 1399 | goto remap; |
| 1400 | } |
| 1401 | |
| 1402 | size = event->header.size; |
| 1403 | |
| 1404 | dprintf("%p [%p]: event: %d\n", |
| 1405 | (void *)(offset + head), |
| 1406 | (void *)(long)event->header.size, |
| 1407 | event->header.type); |
| 1408 | |
| 1409 | if (!size || process_event(event, offset, head) < 0) { |
| 1410 | |
| 1411 | dprintf("%p [%p]: skipping unknown header type: %d\n", |
| 1412 | (void *)(offset + head), |
| 1413 | (void *)(long)(event->header.size), |
| 1414 | event->header.type); |
| 1415 | |
| 1416 | total_unknown++; |
| 1417 | |
| 1418 | /* |
| 1419 | * assume we lost track of the stream, check alignment, and |
| 1420 | * increment a single u64 in the hope to catch on again 'soon'. |
| 1421 | */ |
| 1422 | |
| 1423 | if (unlikely(head & 7)) |
| 1424 | head &= ~7ULL; |
| 1425 | |
| 1426 | size = 8; |
| 1427 | } |
| 1428 | |
| 1429 | head += size; |
| 1430 | |
| 1431 | if (offset + head < stat.st_size) |
| 1432 | goto more; |
| 1433 | |
| 1434 | rc = EXIT_SUCCESS; |
| 1435 | close(input); |
| 1436 | |
| 1437 | dprintf(" IP events: %10ld\n", total); |
| 1438 | dprintf(" mmap events: %10ld\n", total_mmap); |
| 1439 | dprintf(" comm events: %10ld\n", total_comm); |
| 1440 | dprintf(" fork events: %10ld\n", total_fork); |
| 1441 | dprintf(" unknown events: %10ld\n", total_unknown); |
| 1442 | |
| 1443 | if (dump_trace) |
| 1444 | return 0; |
| 1445 | |
| 1446 | if (verbose >= 3) |
| 1447 | threads__fprintf(stdout); |
| 1448 | |
| 1449 | if (verbose >= 2) |
| 1450 | dsos__fprintf(stdout); |
| 1451 | |
| 1452 | collapse__resort(); |
| 1453 | output__resort(); |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 1454 | |
| 1455 | find_annotations(); |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 1456 | |
| 1457 | return rc; |
| 1458 | } |
| 1459 | |
| 1460 | static const char * const annotate_usage[] = { |
| 1461 | "perf annotate [<options>] <command>", |
| 1462 | NULL |
| 1463 | }; |
| 1464 | |
| 1465 | static const struct option options[] = { |
| 1466 | OPT_STRING('i', "input", &input_name, "file", |
| 1467 | "input file name"), |
Ingo Molnar | 23b8711 | 2009-06-06 21:25:29 +0200 | [diff] [blame] | 1468 | OPT_STRING('s', "symbol", &sym_hist_filter, "symbol", |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 1469 | "symbol to annotate"), |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 1470 | OPT_BOOLEAN('v', "verbose", &verbose, |
| 1471 | "be more verbose (show symbol address, etc)"), |
| 1472 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
| 1473 | "dump raw trace in ASCII"), |
| 1474 | OPT_STRING('k', "vmlinux", &vmlinux, "file", "vmlinux pathname"), |
Frederic Weisbecker | 301406b | 2009-06-13 00:11:21 +0200 | [diff] [blame] | 1475 | OPT_BOOLEAN('l', "print-line", &print_line, |
| 1476 | "print matching source lines (may be slow)"), |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 1477 | OPT_END() |
| 1478 | }; |
| 1479 | |
| 1480 | static void setup_sorting(void) |
| 1481 | { |
| 1482 | char *tmp, *tok, *str = strdup(sort_order); |
| 1483 | |
| 1484 | for (tok = strtok_r(str, ", ", &tmp); |
| 1485 | tok; tok = strtok_r(NULL, ", ", &tmp)) { |
| 1486 | if (sort_dimension__add(tok) < 0) { |
| 1487 | error("Unknown --sort key: `%s'", tok); |
| 1488 | usage_with_options(annotate_usage, options); |
| 1489 | } |
| 1490 | } |
| 1491 | |
| 1492 | free(str); |
| 1493 | } |
| 1494 | |
| 1495 | int cmd_annotate(int argc, const char **argv, const char *prefix) |
| 1496 | { |
| 1497 | symbol__init(); |
| 1498 | |
| 1499 | page_size = getpagesize(); |
| 1500 | |
| 1501 | argc = parse_options(argc, argv, options, annotate_usage, 0); |
| 1502 | |
| 1503 | setup_sorting(); |
| 1504 | |
Ingo Molnar | 0b73da3 | 2009-06-06 15:48:52 +0200 | [diff] [blame] | 1505 | if (argc) { |
| 1506 | /* |
| 1507 | * Special case: if there's an argument left then assume tha |
| 1508 | * it's a symbol filter: |
| 1509 | */ |
| 1510 | if (argc > 1) |
| 1511 | usage_with_options(annotate_usage, options); |
| 1512 | |
| 1513 | sym_hist_filter = argv[0]; |
| 1514 | } |
| 1515 | |
| 1516 | if (!sym_hist_filter) |
Ingo Molnar | 8035e42 | 2009-06-06 15:19:13 +0200 | [diff] [blame] | 1517 | usage_with_options(annotate_usage, options); |
| 1518 | |
| 1519 | setup_pager(); |
| 1520 | |
| 1521 | return __cmd_annotate(); |
| 1522 | } |