1 #include <stdio.h> 2 3 #include "../../util/util.h" 4 #include "../../util/hist.h" 5 #include "../../util/sort.h" 6 #include "../../util/evsel.h" 7 8 9 static size_t callchain__fprintf_left_margin(FILE *fp, int left_margin) 10 { 11 int i; 12 int ret = fprintf(fp, " "); 13 14 for (i = 0; i < left_margin; i++) 15 ret += fprintf(fp, " "); 16 17 return ret; 18 } 19 20 static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask, 21 int left_margin) 22 { 23 int i; 24 size_t ret = callchain__fprintf_left_margin(fp, left_margin); 25 26 for (i = 0; i < depth; i++) 27 if (depth_mask & (1 << i)) 28 ret += fprintf(fp, "| "); 29 else 30 ret += fprintf(fp, " "); 31 32 ret += fprintf(fp, "\n"); 33 34 return ret; 35 } 36 37 static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_list *chain, 38 int depth, int depth_mask, int period, 39 u64 total_samples, u64 hits, 40 int left_margin) 41 { 42 int i; 43 size_t ret = 0; 44 45 ret += callchain__fprintf_left_margin(fp, left_margin); 46 for (i = 0; i < depth; i++) { 47 if (depth_mask & (1 << i)) 48 ret += fprintf(fp, "|"); 49 else 50 ret += fprintf(fp, " "); 51 if (!period && i == depth - 1) { 52 double percent; 53 54 percent = hits * 100.0 / total_samples; 55 ret += percent_color_fprintf(fp, "--%2.2f%%-- ", percent); 56 } else 57 ret += fprintf(fp, "%s", " "); 58 } 59 if (chain->ms.sym) 60 ret += fprintf(fp, "%s\n", chain->ms.sym->name); 61 else 62 ret += fprintf(fp, "0x%0" PRIx64 "\n", chain->ip); 63 64 return ret; 65 } 66 67 static struct symbol *rem_sq_bracket; 68 static struct callchain_list rem_hits; 69 70 static void init_rem_hits(void) 71 { 72 rem_sq_bracket = malloc(sizeof(*rem_sq_bracket) + 6); 73 if (!rem_sq_bracket) { 74 fprintf(stderr, "Not enough memory to display remaining hits\n"); 75 return; 76 } 77 78 strcpy(rem_sq_bracket->name, "[...]"); 79 rem_hits.ms.sym = rem_sq_bracket; 80 } 81 82 static size_t __callchain__fprintf_graph(FILE *fp, struct rb_root *root, 83 u64 total_samples, int depth, 84 int depth_mask, int left_margin) 85 { 86 struct rb_node *node, *next; 87 struct callchain_node *child; 88 struct callchain_list *chain; 89 int new_depth_mask = depth_mask; 90 u64 remaining; 91 size_t ret = 0; 92 int i; 93 uint entries_printed = 0; 94 95 remaining = total_samples; 96 97 node = rb_first(root); 98 while (node) { 99 u64 new_total; 100 u64 cumul; 101 102 child = rb_entry(node, struct callchain_node, rb_node); 103 cumul = callchain_cumul_hits(child); 104 remaining -= cumul; 105 106 /* 107 * The depth mask manages the output of pipes that show 108 * the depth. We don't want to keep the pipes of the current 109 * level for the last child of this depth. 110 * Except if we have remaining filtered hits. They will 111 * supersede the last child 112 */ 113 next = rb_next(node); 114 if (!next && (callchain_param.mode != CHAIN_GRAPH_REL || !remaining)) 115 new_depth_mask &= ~(1 << (depth - 1)); 116 117 /* 118 * But we keep the older depth mask for the line separator 119 * to keep the level link until we reach the last child 120 */ 121 ret += ipchain__fprintf_graph_line(fp, depth, depth_mask, 122 left_margin); 123 i = 0; 124 list_for_each_entry(chain, &child->val, list) { 125 ret += ipchain__fprintf_graph(fp, chain, depth, 126 new_depth_mask, i++, 127 total_samples, 128 cumul, 129 left_margin); 130 } 131 132 if (callchain_param.mode == CHAIN_GRAPH_REL) 133 new_total = child->children_hit; 134 else 135 new_total = total_samples; 136 137 ret += __callchain__fprintf_graph(fp, &child->rb_root, new_total, 138 depth + 1, 139 new_depth_mask | (1 << depth), 140 left_margin); 141 node = next; 142 if (++entries_printed == callchain_param.print_limit) 143 break; 144 } 145 146 if (callchain_param.mode == CHAIN_GRAPH_REL && 147 remaining && remaining != total_samples) { 148 149 if (!rem_sq_bracket) 150 return ret; 151 152 new_depth_mask &= ~(1 << (depth - 1)); 153 ret += ipchain__fprintf_graph(fp, &rem_hits, depth, 154 new_depth_mask, 0, total_samples, 155 remaining, left_margin); 156 } 157 158 return ret; 159 } 160 161 static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root, 162 u64 total_samples, int left_margin) 163 { 164 struct callchain_node *cnode; 165 struct callchain_list *chain; 166 u32 entries_printed = 0; 167 bool printed = false; 168 struct rb_node *node; 169 int i = 0; 170 int ret = 0; 171 172 /* 173 * If have one single callchain root, don't bother printing 174 * its percentage (100 % in fractal mode and the same percentage 175 * than the hist in graph mode). This also avoid one level of column. 176 */ 177 node = rb_first(root); 178 if (node && !rb_next(node)) { 179 cnode = rb_entry(node, struct callchain_node, rb_node); 180 list_for_each_entry(chain, &cnode->val, list) { 181 /* 182 * If we sort by symbol, the first entry is the same than 183 * the symbol. No need to print it otherwise it appears as 184 * displayed twice. 185 */ 186 if (!i++ && field_order == NULL && 187 sort_order && !prefixcmp(sort_order, "sym")) 188 continue; 189 if (!printed) { 190 ret += callchain__fprintf_left_margin(fp, left_margin); 191 ret += fprintf(fp, "|\n"); 192 ret += callchain__fprintf_left_margin(fp, left_margin); 193 ret += fprintf(fp, "---"); 194 left_margin += 3; 195 printed = true; 196 } else 197 ret += callchain__fprintf_left_margin(fp, left_margin); 198 199 if (chain->ms.sym) 200 ret += fprintf(fp, " %s\n", chain->ms.sym->name); 201 else 202 ret += fprintf(fp, " %p\n", (void *)(long)chain->ip); 203 204 if (++entries_printed == callchain_param.print_limit) 205 break; 206 } 207 root = &cnode->rb_root; 208 } 209 210 ret += __callchain__fprintf_graph(fp, root, total_samples, 211 1, 1, left_margin); 212 ret += fprintf(fp, "\n"); 213 214 return ret; 215 } 216 217 static size_t __callchain__fprintf_flat(FILE *fp, struct callchain_node *node, 218 u64 total_samples) 219 { 220 struct callchain_list *chain; 221 size_t ret = 0; 222 223 if (!node) 224 return 0; 225 226 ret += __callchain__fprintf_flat(fp, node->parent, total_samples); 227 228 229 list_for_each_entry(chain, &node->val, list) { 230 if (chain->ip >= PERF_CONTEXT_MAX) 231 continue; 232 if (chain->ms.sym) 233 ret += fprintf(fp, " %s\n", chain->ms.sym->name); 234 else 235 ret += fprintf(fp, " %p\n", 236 (void *)(long)chain->ip); 237 } 238 239 return ret; 240 } 241 242 static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *tree, 243 u64 total_samples) 244 { 245 size_t ret = 0; 246 u32 entries_printed = 0; 247 struct callchain_node *chain; 248 struct rb_node *rb_node = rb_first(tree); 249 250 while (rb_node) { 251 double percent; 252 253 chain = rb_entry(rb_node, struct callchain_node, rb_node); 254 percent = chain->hit * 100.0 / total_samples; 255 256 ret = percent_color_fprintf(fp, " %6.2f%%\n", percent); 257 ret += __callchain__fprintf_flat(fp, chain, total_samples); 258 ret += fprintf(fp, "\n"); 259 if (++entries_printed == callchain_param.print_limit) 260 break; 261 262 rb_node = rb_next(rb_node); 263 } 264 265 return ret; 266 } 267 268 static size_t hist_entry_callchain__fprintf(struct hist_entry *he, 269 u64 total_samples, int left_margin, 270 FILE *fp) 271 { 272 switch (callchain_param.mode) { 273 case CHAIN_GRAPH_REL: 274 return callchain__fprintf_graph(fp, &he->sorted_chain, he->stat.period, 275 left_margin); 276 break; 277 case CHAIN_GRAPH_ABS: 278 return callchain__fprintf_graph(fp, &he->sorted_chain, total_samples, 279 left_margin); 280 break; 281 case CHAIN_FLAT: 282 return callchain__fprintf_flat(fp, &he->sorted_chain, total_samples); 283 break; 284 case CHAIN_NONE: 285 break; 286 default: 287 pr_err("Bad callchain mode\n"); 288 } 289 290 return 0; 291 } 292 293 static size_t hist_entry__callchain_fprintf(struct hist_entry *he, 294 struct hists *hists, 295 FILE *fp) 296 { 297 int left_margin = 0; 298 u64 total_period = hists->stats.total_period; 299 300 if (field_order == NULL && (sort_order == NULL || 301 !prefixcmp(sort_order, "comm"))) { 302 struct perf_hpp_fmt *fmt; 303 304 perf_hpp__for_each_format(fmt) { 305 if (!perf_hpp__is_sort_entry(fmt)) 306 continue; 307 308 /* must be 'comm' sort entry */ 309 left_margin = fmt->width(fmt, NULL, hists_to_evsel(hists)); 310 left_margin -= thread__comm_len(he->thread); 311 break; 312 } 313 } 314 return hist_entry_callchain__fprintf(he, total_period, left_margin, fp); 315 } 316 317 static int hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp) 318 { 319 const char *sep = symbol_conf.field_sep; 320 struct perf_hpp_fmt *fmt; 321 char *start = hpp->buf; 322 int ret; 323 bool first = true; 324 325 if (symbol_conf.exclude_other && !he->parent) 326 return 0; 327 328 perf_hpp__for_each_format(fmt) { 329 if (perf_hpp__should_skip(fmt)) 330 continue; 331 332 /* 333 * If there's no field_sep, we still need 334 * to display initial ' '. 335 */ 336 if (!sep || !first) { 337 ret = scnprintf(hpp->buf, hpp->size, "%s", sep ?: " "); 338 advance_hpp(hpp, ret); 339 } else 340 first = false; 341 342 if (perf_hpp__use_color() && fmt->color) 343 ret = fmt->color(fmt, hpp, he); 344 else 345 ret = fmt->entry(fmt, hpp, he); 346 347 advance_hpp(hpp, ret); 348 } 349 350 return hpp->buf - start; 351 } 352 353 static int hist_entry__fprintf(struct hist_entry *he, size_t size, 354 struct hists *hists, 355 char *bf, size_t bfsz, FILE *fp) 356 { 357 int ret; 358 struct perf_hpp hpp = { 359 .buf = bf, 360 .size = size, 361 }; 362 363 if (size == 0 || size > bfsz) 364 size = hpp.size = bfsz; 365 366 hist_entry__snprintf(he, &hpp); 367 368 ret = fprintf(fp, "%s\n", bf); 369 370 if (symbol_conf.use_callchain) 371 ret += hist_entry__callchain_fprintf(he, hists, fp); 372 373 return ret; 374 } 375 376 size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows, 377 int max_cols, float min_pcnt, FILE *fp) 378 { 379 struct perf_hpp_fmt *fmt; 380 struct rb_node *nd; 381 size_t ret = 0; 382 unsigned int width; 383 const char *sep = symbol_conf.field_sep; 384 int nr_rows = 0; 385 char bf[96]; 386 struct perf_hpp dummy_hpp = { 387 .buf = bf, 388 .size = sizeof(bf), 389 }; 390 bool first = true; 391 size_t linesz; 392 char *line = NULL; 393 394 init_rem_hits(); 395 396 397 perf_hpp__for_each_format(fmt) 398 perf_hpp__reset_width(fmt, hists); 399 400 if (!show_header) 401 goto print_entries; 402 403 fprintf(fp, "# "); 404 405 perf_hpp__for_each_format(fmt) { 406 if (perf_hpp__should_skip(fmt)) 407 continue; 408 409 if (!first) 410 fprintf(fp, "%s", sep ?: " "); 411 else 412 first = false; 413 414 fmt->header(fmt, &dummy_hpp, hists_to_evsel(hists)); 415 fprintf(fp, "%s", bf); 416 } 417 418 fprintf(fp, "\n"); 419 if (max_rows && ++nr_rows >= max_rows) 420 goto out; 421 422 if (sep) 423 goto print_entries; 424 425 first = true; 426 427 fprintf(fp, "# "); 428 429 perf_hpp__for_each_format(fmt) { 430 unsigned int i; 431 432 if (perf_hpp__should_skip(fmt)) 433 continue; 434 435 if (!first) 436 fprintf(fp, "%s", sep ?: " "); 437 else 438 first = false; 439 440 width = fmt->width(fmt, &dummy_hpp, hists_to_evsel(hists)); 441 for (i = 0; i < width; i++) 442 fprintf(fp, "."); 443 } 444 445 fprintf(fp, "\n"); 446 if (max_rows && ++nr_rows >= max_rows) 447 goto out; 448 449 fprintf(fp, "#\n"); 450 if (max_rows && ++nr_rows >= max_rows) 451 goto out; 452 453 print_entries: 454 linesz = hists__sort_list_width(hists) + 3 + 1; 455 linesz += perf_hpp__color_overhead(); 456 line = malloc(linesz); 457 if (line == NULL) { 458 ret = -1; 459 goto out; 460 } 461 462 for (nd = rb_first(&hists->entries); nd; nd = rb_next(nd)) { 463 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); 464 float percent = h->stat.period * 100.0 / 465 hists->stats.total_period; 466 467 if (h->filtered) 468 continue; 469 470 if (percent < min_pcnt) 471 continue; 472 473 ret += hist_entry__fprintf(h, max_cols, hists, line, linesz, fp); 474 475 if (max_rows && ++nr_rows >= max_rows) 476 break; 477 478 if (h->ms.map == NULL && verbose > 1) { 479 __map_groups__fprintf_maps(h->thread->mg, 480 MAP__FUNCTION, verbose, fp); 481 fprintf(fp, "%.10s end\n", graph_dotted_line); 482 } 483 } 484 485 free(line); 486 out: 487 zfree(&rem_sq_bracket); 488 489 return ret; 490 } 491 492 size_t events_stats__fprintf(struct events_stats *stats, FILE *fp) 493 { 494 int i; 495 size_t ret = 0; 496 497 for (i = 0; i < PERF_RECORD_HEADER_MAX; ++i) { 498 const char *name; 499 500 if (stats->nr_events[i] == 0) 501 continue; 502 503 name = perf_event__name(i); 504 if (!strcmp(name, "UNKNOWN")) 505 continue; 506 507 ret += fprintf(fp, "%16s events: %10d\n", name, 508 stats->nr_events[i]); 509 } 510 511 return ret; 512 } 513