1 // SPDX-License-Identifier: GPL-2.0 2 #include <stdio.h> 3 #include <stdlib.h> 4 #include <linux/string.h> 5 6 #include "../../util/callchain.h" 7 #include "../../util/debug.h" 8 #include "../../util/event.h" 9 #include "../../util/hist.h" 10 #include "../../util/map.h" 11 #include "../../util/maps.h" 12 #include "../../util/symbol.h" 13 #include "../../util/sort.h" 14 #include "../../util/evsel.h" 15 #include "../../util/srcline.h" 16 #include "../../util/string2.h" 17 #include "../../util/thread.h" 18 #include "../../util/block-info.h" 19 #include <linux/ctype.h> 20 #include <linux/zalloc.h> 21 22 static size_t callchain__fprintf_left_margin(FILE *fp, int left_margin) 23 { 24 int i; 25 int ret = fprintf(fp, " "); 26 27 for (i = 0; i < left_margin; i++) 28 ret += fprintf(fp, " "); 29 30 return ret; 31 } 32 33 static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask, 34 int left_margin) 35 { 36 int i; 37 size_t ret = callchain__fprintf_left_margin(fp, left_margin); 38 39 for (i = 0; i < depth; i++) 40 if (depth_mask & (1 << i)) 41 ret += fprintf(fp, "| "); 42 else 43 ret += fprintf(fp, " "); 44 45 ret += fprintf(fp, "\n"); 46 47 return ret; 48 } 49 50 static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_node *node, 51 struct callchain_list *chain, 52 int depth, int depth_mask, int period, 53 u64 total_samples, int left_margin) 54 { 55 int i; 56 size_t ret = 0; 57 char bf[1024], *alloc_str = NULL; 58 char buf[64]; 59 const char *str; 60 61 ret += callchain__fprintf_left_margin(fp, left_margin); 62 for (i = 0; i < depth; i++) { 63 if (depth_mask & (1 << i)) 64 ret += fprintf(fp, "|"); 65 else 66 ret += fprintf(fp, " "); 67 if (!period && i == depth - 1) { 68 ret += fprintf(fp, "--"); 69 ret += callchain_node__fprintf_value(node, fp, total_samples); 70 ret += fprintf(fp, "--"); 71 } else 72 ret += fprintf(fp, "%s", " "); 73 } 74 75 str = callchain_list__sym_name(chain, bf, sizeof(bf), false); 76 77 if (symbol_conf.show_branchflag_count) { 78 callchain_list_counts__printf_value(chain, NULL, 79 buf, sizeof(buf)); 80 81 if (asprintf(&alloc_str, "%s%s", str, buf) < 0) 82 str = "Not enough memory!"; 83 else 84 str = alloc_str; 85 } 86 87 fputs(str, fp); 88 fputc('\n', fp); 89 free(alloc_str); 90 91 return ret; 92 } 93 94 static struct symbol *rem_sq_bracket; 95 static struct callchain_list rem_hits; 96 97 static void init_rem_hits(void) 98 { 99 rem_sq_bracket = malloc(sizeof(*rem_sq_bracket) + 6); 100 if (!rem_sq_bracket) { 101 fprintf(stderr, "Not enough memory to display remaining hits\n"); 102 return; 103 } 104 105 strcpy(rem_sq_bracket->name, "[...]"); 106 rem_hits.ms.sym = rem_sq_bracket; 107 } 108 109 static size_t __callchain__fprintf_graph(FILE *fp, struct rb_root *root, 110 u64 total_samples, int depth, 111 int depth_mask, int left_margin) 112 { 113 struct rb_node *node, *next; 114 struct callchain_node *child = NULL; 115 struct callchain_list *chain; 116 int new_depth_mask = depth_mask; 117 u64 remaining; 118 size_t ret = 0; 119 int i; 120 uint entries_printed = 0; 121 int cumul_count = 0; 122 123 remaining = total_samples; 124 125 node = rb_first(root); 126 while (node) { 127 u64 new_total; 128 u64 cumul; 129 130 child = rb_entry(node, struct callchain_node, rb_node); 131 cumul = callchain_cumul_hits(child); 132 remaining -= cumul; 133 cumul_count += callchain_cumul_counts(child); 134 135 /* 136 * The depth mask manages the output of pipes that show 137 * the depth. We don't want to keep the pipes of the current 138 * level for the last child of this depth. 139 * Except if we have remaining filtered hits. They will 140 * supersede the last child 141 */ 142 next = rb_next(node); 143 if (!next && (callchain_param.mode != CHAIN_GRAPH_REL || !remaining)) 144 new_depth_mask &= ~(1 << (depth - 1)); 145 146 /* 147 * But we keep the older depth mask for the line separator 148 * to keep the level link until we reach the last child 149 */ 150 ret += ipchain__fprintf_graph_line(fp, depth, depth_mask, 151 left_margin); 152 i = 0; 153 list_for_each_entry(chain, &child->val, list) { 154 ret += ipchain__fprintf_graph(fp, child, chain, depth, 155 new_depth_mask, i++, 156 total_samples, 157 left_margin); 158 } 159 160 if (callchain_param.mode == CHAIN_GRAPH_REL) 161 new_total = child->children_hit; 162 else 163 new_total = total_samples; 164 165 ret += __callchain__fprintf_graph(fp, &child->rb_root, new_total, 166 depth + 1, 167 new_depth_mask | (1 << depth), 168 left_margin); 169 node = next; 170 if (++entries_printed == callchain_param.print_limit) 171 break; 172 } 173 174 if (callchain_param.mode == CHAIN_GRAPH_REL && 175 remaining && remaining != total_samples) { 176 struct callchain_node rem_node = { 177 .hit = remaining, 178 }; 179 180 if (!rem_sq_bracket) 181 return ret; 182 183 if (callchain_param.value == CCVAL_COUNT && child && child->parent) { 184 rem_node.count = child->parent->children_count - cumul_count; 185 if (rem_node.count <= 0) 186 return ret; 187 } 188 189 new_depth_mask &= ~(1 << (depth - 1)); 190 ret += ipchain__fprintf_graph(fp, &rem_node, &rem_hits, depth, 191 new_depth_mask, 0, total_samples, 192 left_margin); 193 } 194 195 return ret; 196 } 197 198 /* 199 * If have one single callchain root, don't bother printing 200 * its percentage (100 % in fractal mode and the same percentage 201 * than the hist in graph mode). This also avoid one level of column. 202 * 203 * However when percent-limit applied, it's possible that single callchain 204 * node have different (non-100% in fractal mode) percentage. 205 */ 206 static bool need_percent_display(struct rb_node *node, u64 parent_samples) 207 { 208 struct callchain_node *cnode; 209 210 if (rb_next(node)) 211 return true; 212 213 cnode = rb_entry(node, struct callchain_node, rb_node); 214 return callchain_cumul_hits(cnode) != parent_samples; 215 } 216 217 static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root, 218 u64 total_samples, u64 parent_samples, 219 int left_margin) 220 { 221 struct callchain_node *cnode; 222 struct callchain_list *chain; 223 u32 entries_printed = 0; 224 bool printed = false; 225 struct rb_node *node; 226 int i = 0; 227 int ret = 0; 228 char bf[1024]; 229 230 node = rb_first(root); 231 if (node && !need_percent_display(node, parent_samples)) { 232 cnode = rb_entry(node, struct callchain_node, rb_node); 233 list_for_each_entry(chain, &cnode->val, list) { 234 /* 235 * If we sort by symbol, the first entry is the same than 236 * the symbol. No need to print it otherwise it appears as 237 * displayed twice. 238 */ 239 if (!i++ && field_order == NULL && 240 sort_order && strstarts(sort_order, "sym")) 241 continue; 242 243 if (!printed) { 244 ret += callchain__fprintf_left_margin(fp, left_margin); 245 ret += fprintf(fp, "|\n"); 246 ret += callchain__fprintf_left_margin(fp, left_margin); 247 ret += fprintf(fp, "---"); 248 left_margin += 3; 249 printed = true; 250 } else 251 ret += callchain__fprintf_left_margin(fp, left_margin); 252 253 ret += fprintf(fp, "%s", 254 callchain_list__sym_name(chain, bf, 255 sizeof(bf), 256 false)); 257 258 if (symbol_conf.show_branchflag_count) 259 ret += callchain_list_counts__printf_value( 260 chain, fp, NULL, 0); 261 ret += fprintf(fp, "\n"); 262 263 if (++entries_printed == callchain_param.print_limit) 264 break; 265 } 266 root = &cnode->rb_root; 267 } 268 269 if (callchain_param.mode == CHAIN_GRAPH_REL) 270 total_samples = parent_samples; 271 272 ret += __callchain__fprintf_graph(fp, root, total_samples, 273 1, 1, left_margin); 274 if (ret) { 275 /* do not add a blank line if it printed nothing */ 276 ret += fprintf(fp, "\n"); 277 } 278 279 return ret; 280 } 281 282 static size_t __callchain__fprintf_flat(FILE *fp, struct callchain_node *node, 283 u64 total_samples) 284 { 285 struct callchain_list *chain; 286 size_t ret = 0; 287 char bf[1024]; 288 289 if (!node) 290 return 0; 291 292 ret += __callchain__fprintf_flat(fp, node->parent, total_samples); 293 294 295 list_for_each_entry(chain, &node->val, list) { 296 if (chain->ip >= PERF_CONTEXT_MAX) 297 continue; 298 ret += fprintf(fp, " %s\n", callchain_list__sym_name(chain, 299 bf, sizeof(bf), false)); 300 } 301 302 return ret; 303 } 304 305 static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *tree, 306 u64 total_samples) 307 { 308 size_t ret = 0; 309 u32 entries_printed = 0; 310 struct callchain_node *chain; 311 struct rb_node *rb_node = rb_first(tree); 312 313 while (rb_node) { 314 chain = rb_entry(rb_node, struct callchain_node, rb_node); 315 316 ret += fprintf(fp, " "); 317 ret += callchain_node__fprintf_value(chain, fp, total_samples); 318 ret += fprintf(fp, "\n"); 319 ret += __callchain__fprintf_flat(fp, chain, total_samples); 320 ret += fprintf(fp, "\n"); 321 if (++entries_printed == callchain_param.print_limit) 322 break; 323 324 rb_node = rb_next(rb_node); 325 } 326 327 return ret; 328 } 329 330 static size_t __callchain__fprintf_folded(FILE *fp, struct callchain_node *node) 331 { 332 const char *sep = symbol_conf.field_sep ?: ";"; 333 struct callchain_list *chain; 334 size_t ret = 0; 335 char bf[1024]; 336 bool first; 337 338 if (!node) 339 return 0; 340 341 ret += __callchain__fprintf_folded(fp, node->parent); 342 343 first = (ret == 0); 344 list_for_each_entry(chain, &node->val, list) { 345 if (chain->ip >= PERF_CONTEXT_MAX) 346 continue; 347 ret += fprintf(fp, "%s%s", first ? "" : sep, 348 callchain_list__sym_name(chain, 349 bf, sizeof(bf), false)); 350 first = false; 351 } 352 353 return ret; 354 } 355 356 static size_t callchain__fprintf_folded(FILE *fp, struct rb_root *tree, 357 u64 total_samples) 358 { 359 size_t ret = 0; 360 u32 entries_printed = 0; 361 struct callchain_node *chain; 362 struct rb_node *rb_node = rb_first(tree); 363 364 while (rb_node) { 365 366 chain = rb_entry(rb_node, struct callchain_node, rb_node); 367 368 ret += callchain_node__fprintf_value(chain, fp, total_samples); 369 ret += fprintf(fp, " "); 370 ret += __callchain__fprintf_folded(fp, chain); 371 ret += fprintf(fp, "\n"); 372 if (++entries_printed == callchain_param.print_limit) 373 break; 374 375 rb_node = rb_next(rb_node); 376 } 377 378 return ret; 379 } 380 381 static size_t hist_entry_callchain__fprintf(struct hist_entry *he, 382 u64 total_samples, int left_margin, 383 FILE *fp) 384 { 385 u64 parent_samples = he->stat.period; 386 387 if (symbol_conf.cumulate_callchain) 388 parent_samples = he->stat_acc->period; 389 390 switch (callchain_param.mode) { 391 case CHAIN_GRAPH_REL: 392 return callchain__fprintf_graph(fp, &he->sorted_chain, total_samples, 393 parent_samples, left_margin); 394 break; 395 case CHAIN_GRAPH_ABS: 396 return callchain__fprintf_graph(fp, &he->sorted_chain, total_samples, 397 parent_samples, left_margin); 398 break; 399 case CHAIN_FLAT: 400 return callchain__fprintf_flat(fp, &he->sorted_chain, total_samples); 401 break; 402 case CHAIN_FOLDED: 403 return callchain__fprintf_folded(fp, &he->sorted_chain, total_samples); 404 break; 405 case CHAIN_NONE: 406 break; 407 default: 408 pr_err("Bad callchain mode\n"); 409 } 410 411 return 0; 412 } 413 414 int __hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp, 415 struct perf_hpp_list *hpp_list) 416 { 417 const char *sep = symbol_conf.field_sep; 418 struct perf_hpp_fmt *fmt; 419 char *start = hpp->buf; 420 int ret; 421 bool first = true; 422 423 if (symbol_conf.exclude_other && !he->parent) 424 return 0; 425 426 perf_hpp_list__for_each_format(hpp_list, fmt) { 427 if (perf_hpp__should_skip(fmt, he->hists)) 428 continue; 429 430 /* 431 * If there's no field_sep, we still need 432 * to display initial ' '. 433 */ 434 if (!sep || !first) { 435 ret = scnprintf(hpp->buf, hpp->size, "%s", sep ?: " "); 436 advance_hpp(hpp, ret); 437 } else 438 first = false; 439 440 if (perf_hpp__use_color() && fmt->color) 441 ret = fmt->color(fmt, hpp, he); 442 else 443 ret = fmt->entry(fmt, hpp, he); 444 445 ret = hist_entry__snprintf_alignment(he, hpp, fmt, ret); 446 advance_hpp(hpp, ret); 447 } 448 449 return hpp->buf - start; 450 } 451 452 static int hist_entry__snprintf(struct hist_entry *he, struct perf_hpp *hpp) 453 { 454 return __hist_entry__snprintf(he, hpp, he->hists->hpp_list); 455 } 456 457 static int hist_entry__hierarchy_fprintf(struct hist_entry *he, 458 struct perf_hpp *hpp, 459 struct hists *hists, 460 FILE *fp) 461 { 462 const char *sep = symbol_conf.field_sep; 463 struct perf_hpp_fmt *fmt; 464 struct perf_hpp_list_node *fmt_node; 465 char *buf = hpp->buf; 466 size_t size = hpp->size; 467 int ret, printed = 0; 468 bool first = true; 469 470 if (symbol_conf.exclude_other && !he->parent) 471 return 0; 472 473 ret = scnprintf(hpp->buf, hpp->size, "%*s", he->depth * HIERARCHY_INDENT, ""); 474 advance_hpp(hpp, ret); 475 476 /* the first hpp_list_node is for overhead columns */ 477 fmt_node = list_first_entry(&hists->hpp_formats, 478 struct perf_hpp_list_node, list); 479 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) { 480 /* 481 * If there's no field_sep, we still need 482 * to display initial ' '. 483 */ 484 if (!sep || !first) { 485 ret = scnprintf(hpp->buf, hpp->size, "%s", sep ?: " "); 486 advance_hpp(hpp, ret); 487 } else 488 first = false; 489 490 if (perf_hpp__use_color() && fmt->color) 491 ret = fmt->color(fmt, hpp, he); 492 else 493 ret = fmt->entry(fmt, hpp, he); 494 495 ret = hist_entry__snprintf_alignment(he, hpp, fmt, ret); 496 advance_hpp(hpp, ret); 497 } 498 499 if (!sep) 500 ret = scnprintf(hpp->buf, hpp->size, "%*s", 501 (hists->nr_hpp_node - 2) * HIERARCHY_INDENT, ""); 502 advance_hpp(hpp, ret); 503 504 printed += fprintf(fp, "%s", buf); 505 506 perf_hpp_list__for_each_format(he->hpp_list, fmt) { 507 hpp->buf = buf; 508 hpp->size = size; 509 510 /* 511 * No need to call hist_entry__snprintf_alignment() since this 512 * fmt is always the last column in the hierarchy mode. 513 */ 514 if (perf_hpp__use_color() && fmt->color) 515 fmt->color(fmt, hpp, he); 516 else 517 fmt->entry(fmt, hpp, he); 518 519 /* 520 * dynamic entries are right-aligned but we want left-aligned 521 * in the hierarchy mode 522 */ 523 printed += fprintf(fp, "%s%s", sep ?: " ", skip_spaces(buf)); 524 } 525 printed += putc('\n', fp); 526 527 if (he->leaf && hist_entry__has_callchains(he) && symbol_conf.use_callchain) { 528 u64 total = hists__total_period(hists); 529 530 printed += hist_entry_callchain__fprintf(he, total, 0, fp); 531 goto out; 532 } 533 534 out: 535 return printed; 536 } 537 538 static int hist_entry__block_fprintf(struct hist_entry *he, 539 char *bf, size_t size, 540 FILE *fp) 541 { 542 struct block_hist *bh = container_of(he, struct block_hist, he); 543 int ret = 0; 544 545 for (unsigned int i = 0; i < bh->block_hists.nr_entries; i++) { 546 struct perf_hpp hpp = { 547 .buf = bf, 548 .size = size, 549 .skip = false, 550 }; 551 552 bh->block_idx = i; 553 hist_entry__snprintf(he, &hpp); 554 555 if (!hpp.skip) 556 ret += fprintf(fp, "%s\n", bf); 557 } 558 559 return ret; 560 } 561 562 static int hist_entry__individual_block_fprintf(struct hist_entry *he, 563 char *bf, size_t size, 564 FILE *fp) 565 { 566 int ret = 0; 567 568 struct perf_hpp hpp = { 569 .buf = bf, 570 .size = size, 571 .skip = false, 572 }; 573 574 hist_entry__snprintf(he, &hpp); 575 if (!hpp.skip) 576 ret += fprintf(fp, "%s\n", bf); 577 578 return ret; 579 } 580 581 static int hist_entry__fprintf(struct hist_entry *he, size_t size, 582 char *bf, size_t bfsz, FILE *fp, 583 bool ignore_callchains) 584 { 585 int ret; 586 int callchain_ret = 0; 587 struct perf_hpp hpp = { 588 .buf = bf, 589 .size = size, 590 }; 591 struct hists *hists = he->hists; 592 u64 total_period = hists->stats.total_period; 593 594 if (size == 0 || size > bfsz) 595 size = hpp.size = bfsz; 596 597 if (symbol_conf.report_hierarchy) 598 return hist_entry__hierarchy_fprintf(he, &hpp, hists, fp); 599 600 if (symbol_conf.report_block) 601 return hist_entry__block_fprintf(he, bf, size, fp); 602 603 if (symbol_conf.report_individual_block) 604 return hist_entry__individual_block_fprintf(he, bf, size, fp); 605 606 hist_entry__snprintf(he, &hpp); 607 608 ret = fprintf(fp, "%s\n", bf); 609 610 if (hist_entry__has_callchains(he) && !ignore_callchains) 611 callchain_ret = hist_entry_callchain__fprintf(he, total_period, 612 0, fp); 613 614 ret += callchain_ret; 615 616 return ret; 617 } 618 619 static int print_hierarchy_indent(const char *sep, int indent, 620 const char *line, FILE *fp) 621 { 622 int width; 623 624 if (sep != NULL || indent < 2) 625 return 0; 626 627 width = (indent - 2) * HIERARCHY_INDENT; 628 629 return fprintf(fp, "%-*.*s", width, width, line); 630 } 631 632 static int hists__fprintf_hierarchy_headers(struct hists *hists, 633 struct perf_hpp *hpp, FILE *fp) 634 { 635 bool first_node, first_col; 636 int indent; 637 int depth; 638 unsigned width = 0; 639 unsigned header_width = 0; 640 struct perf_hpp_fmt *fmt; 641 struct perf_hpp_list_node *fmt_node; 642 const char *sep = symbol_conf.field_sep; 643 644 indent = hists->nr_hpp_node; 645 646 /* preserve max indent depth for column headers */ 647 print_hierarchy_indent(sep, indent, " ", fp); 648 649 /* the first hpp_list_node is for overhead columns */ 650 fmt_node = list_first_entry(&hists->hpp_formats, 651 struct perf_hpp_list_node, list); 652 653 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) { 654 fmt->header(fmt, hpp, hists, 0, NULL); 655 fprintf(fp, "%s%s", hpp->buf, sep ?: " "); 656 } 657 658 /* combine sort headers with ' / ' */ 659 first_node = true; 660 list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) { 661 if (!first_node) 662 header_width += fprintf(fp, " / "); 663 first_node = false; 664 665 first_col = true; 666 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) { 667 if (perf_hpp__should_skip(fmt, hists)) 668 continue; 669 670 if (!first_col) 671 header_width += fprintf(fp, "+"); 672 first_col = false; 673 674 fmt->header(fmt, hpp, hists, 0, NULL); 675 676 header_width += fprintf(fp, "%s", strim(hpp->buf)); 677 } 678 } 679 680 fprintf(fp, "\n# "); 681 682 /* preserve max indent depth for initial dots */ 683 print_hierarchy_indent(sep, indent, dots, fp); 684 685 /* the first hpp_list_node is for overhead columns */ 686 fmt_node = list_first_entry(&hists->hpp_formats, 687 struct perf_hpp_list_node, list); 688 689 first_col = true; 690 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) { 691 if (!first_col) 692 fprintf(fp, "%s", sep ?: ".."); 693 first_col = false; 694 695 width = fmt->width(fmt, hpp, hists); 696 fprintf(fp, "%.*s", width, dots); 697 } 698 699 depth = 0; 700 list_for_each_entry_continue(fmt_node, &hists->hpp_formats, list) { 701 first_col = true; 702 width = depth * HIERARCHY_INDENT; 703 704 perf_hpp_list__for_each_format(&fmt_node->hpp, fmt) { 705 if (perf_hpp__should_skip(fmt, hists)) 706 continue; 707 708 if (!first_col) 709 width++; /* for '+' sign between column header */ 710 first_col = false; 711 712 width += fmt->width(fmt, hpp, hists); 713 } 714 715 if (width > header_width) 716 header_width = width; 717 718 depth++; 719 } 720 721 fprintf(fp, "%s%-.*s", sep ?: " ", header_width, dots); 722 723 fprintf(fp, "\n#\n"); 724 725 return 2; 726 } 727 728 static void fprintf_line(struct hists *hists, struct perf_hpp *hpp, 729 int line, FILE *fp) 730 { 731 struct perf_hpp_fmt *fmt; 732 const char *sep = symbol_conf.field_sep; 733 bool first = true; 734 int span = 0; 735 736 hists__for_each_format(hists, fmt) { 737 if (perf_hpp__should_skip(fmt, hists)) 738 continue; 739 740 if (!first && !span) 741 fprintf(fp, "%s", sep ?: " "); 742 else 743 first = false; 744 745 fmt->header(fmt, hpp, hists, line, &span); 746 747 if (!span) 748 fprintf(fp, "%s", hpp->buf); 749 } 750 } 751 752 static int 753 hists__fprintf_standard_headers(struct hists *hists, 754 struct perf_hpp *hpp, 755 FILE *fp) 756 { 757 struct perf_hpp_list *hpp_list = hists->hpp_list; 758 struct perf_hpp_fmt *fmt; 759 unsigned int width; 760 const char *sep = symbol_conf.field_sep; 761 bool first = true; 762 int line; 763 764 for (line = 0; line < hpp_list->nr_header_lines; line++) { 765 /* first # is displayed one level up */ 766 if (line) 767 fprintf(fp, "# "); 768 fprintf_line(hists, hpp, line, fp); 769 fprintf(fp, "\n"); 770 } 771 772 if (sep) 773 return hpp_list->nr_header_lines; 774 775 first = true; 776 777 fprintf(fp, "# "); 778 779 hists__for_each_format(hists, fmt) { 780 unsigned int i; 781 782 if (perf_hpp__should_skip(fmt, hists)) 783 continue; 784 785 if (!first) 786 fprintf(fp, "%s", sep ?: " "); 787 else 788 first = false; 789 790 width = fmt->width(fmt, hpp, hists); 791 for (i = 0; i < width; i++) 792 fprintf(fp, "."); 793 } 794 795 fprintf(fp, "\n"); 796 fprintf(fp, "#\n"); 797 return hpp_list->nr_header_lines + 2; 798 } 799 800 int hists__fprintf_headers(struct hists *hists, FILE *fp) 801 { 802 char bf[1024]; 803 struct perf_hpp dummy_hpp = { 804 .buf = bf, 805 .size = sizeof(bf), 806 }; 807 808 fprintf(fp, "# "); 809 810 if (symbol_conf.report_hierarchy) 811 return hists__fprintf_hierarchy_headers(hists, &dummy_hpp, fp); 812 else 813 return hists__fprintf_standard_headers(hists, &dummy_hpp, fp); 814 815 } 816 817 size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows, 818 int max_cols, float min_pcnt, FILE *fp, 819 bool ignore_callchains) 820 { 821 struct rb_node *nd; 822 size_t ret = 0; 823 const char *sep = symbol_conf.field_sep; 824 int nr_rows = 0; 825 size_t linesz; 826 char *line = NULL; 827 unsigned indent; 828 829 init_rem_hits(); 830 831 hists__reset_column_width(hists); 832 833 if (symbol_conf.col_width_list_str) 834 perf_hpp__set_user_width(symbol_conf.col_width_list_str); 835 836 if (show_header) 837 nr_rows += hists__fprintf_headers(hists, fp); 838 839 if (max_rows && nr_rows >= max_rows) 840 goto out; 841 842 linesz = hists__sort_list_width(hists) + 3 + 1; 843 linesz += perf_hpp__color_overhead(); 844 line = malloc(linesz); 845 if (line == NULL) { 846 ret = -1; 847 goto out; 848 } 849 850 indent = hists__overhead_width(hists) + 4; 851 852 for (nd = rb_first_cached(&hists->entries); nd; 853 nd = __rb_hierarchy_next(nd, HMD_FORCE_CHILD)) { 854 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); 855 float percent; 856 857 if (h->filtered) 858 continue; 859 860 if (symbol_conf.report_individual_block) 861 percent = block_info__total_cycles_percent(h); 862 else 863 percent = hist_entry__get_percent_limit(h); 864 865 if (percent < min_pcnt) 866 continue; 867 868 ret += hist_entry__fprintf(h, max_cols, line, linesz, fp, ignore_callchains); 869 870 if (max_rows && ++nr_rows >= max_rows) 871 break; 872 873 /* 874 * If all children are filtered out or percent-limited, 875 * display "no entry >= x.xx%" message. 876 */ 877 if (!h->leaf && !hist_entry__has_hierarchy_children(h, min_pcnt)) { 878 int depth = hists->nr_hpp_node + h->depth + 1; 879 880 print_hierarchy_indent(sep, depth, " ", fp); 881 fprintf(fp, "%*sno entry >= %.2f%%\n", indent, "", min_pcnt); 882 883 if (max_rows && ++nr_rows >= max_rows) 884 break; 885 } 886 887 if (h->ms.map == NULL && verbose > 1) { 888 maps__fprintf(h->thread->maps, fp); 889 fprintf(fp, "%.10s end\n", graph_dotted_line); 890 } 891 } 892 893 free(line); 894 out: 895 zfree(&rem_sq_bracket); 896 897 return ret; 898 } 899 900 size_t events_stats__fprintf(struct events_stats *stats, FILE *fp, 901 bool skip_empty) 902 { 903 int i; 904 size_t ret = 0; 905 u32 total = stats->nr_events[0]; 906 907 for (i = 0; i < PERF_RECORD_HEADER_MAX; ++i) { 908 const char *name; 909 910 name = perf_event__name(i); 911 if (!strcmp(name, "UNKNOWN")) 912 continue; 913 if (skip_empty && !stats->nr_events[i]) 914 continue; 915 916 if (i && total) { 917 ret += fprintf(fp, "%16s events: %10d (%4.1f%%)\n", 918 name, stats->nr_events[i], 919 100.0 * stats->nr_events[i] / total); 920 } else { 921 ret += fprintf(fp, "%16s events: %10d\n", 922 name, stats->nr_events[i]); 923 } 924 } 925 926 return ret; 927 } 928