1 // SPDX-License-Identifier: GPL-2.0 2 #include "../browser.h" 3 #include "../helpline.h" 4 #include "../ui.h" 5 #include "../../util/annotate.h" 6 #include "../../util/debug.h" 7 #include "../../util/dso.h" 8 #include "../../util/hist.h" 9 #include "../../util/sort.h" 10 #include "../../util/map.h" 11 #include "../../util/mutex.h" 12 #include "../../util/symbol.h" 13 #include "../../util/evsel.h" 14 #include "../../util/evlist.h" 15 #include <inttypes.h> 16 #include <linux/kernel.h> 17 #include <linux/string.h> 18 #include <linux/zalloc.h> 19 #include <sys/ttydefaults.h> 20 #include <asm/bug.h> 21 22 struct arch; 23 24 struct annotate_browser { 25 struct ui_browser b; 26 struct rb_root entries; 27 struct rb_node *curr_hot; 28 struct annotation_line *selection; 29 struct arch *arch; 30 bool searching_backwards; 31 char search_bf[128]; 32 }; 33 34 static inline struct annotation *browser__annotation(struct ui_browser *browser) 35 { 36 struct map_symbol *ms = browser->priv; 37 return symbol__annotation(ms->sym); 38 } 39 40 static bool disasm_line__filter(struct ui_browser *browser __maybe_unused, void *entry) 41 { 42 struct annotation_line *al = list_entry(entry, struct annotation_line, node); 43 return annotation_line__filter(al); 44 } 45 46 static int ui_browser__jumps_percent_color(struct ui_browser *browser, int nr, bool current) 47 { 48 struct annotation *notes = browser__annotation(browser); 49 50 if (current && (!browser->use_navkeypressed || browser->navkeypressed)) 51 return HE_COLORSET_SELECTED; 52 if (nr == notes->src->max_jump_sources) 53 return HE_COLORSET_TOP; 54 if (nr > 1) 55 return HE_COLORSET_MEDIUM; 56 return HE_COLORSET_NORMAL; 57 } 58 59 static int ui_browser__set_jumps_percent_color(void *browser, int nr, bool current) 60 { 61 int color = ui_browser__jumps_percent_color(browser, nr, current); 62 return ui_browser__set_color(browser, color); 63 } 64 65 static int annotate_browser__set_color(void *browser, int color) 66 { 67 return ui_browser__set_color(browser, color); 68 } 69 70 static void annotate_browser__write_graph(void *browser, int graph) 71 { 72 ui_browser__write_graph(browser, graph); 73 } 74 75 static void annotate_browser__set_percent_color(void *browser, double percent, bool current) 76 { 77 ui_browser__set_percent_color(browser, percent, current); 78 } 79 80 static void annotate_browser__printf(void *browser, const char *fmt, ...) 81 { 82 va_list args; 83 84 va_start(args, fmt); 85 ui_browser__vprintf(browser, fmt, args); 86 va_end(args); 87 } 88 89 static void annotate_browser__write(struct ui_browser *browser, void *entry, int row) 90 { 91 struct annotate_browser *ab = container_of(browser, struct annotate_browser, b); 92 struct annotation *notes = browser__annotation(browser); 93 struct annotation_line *al = list_entry(entry, struct annotation_line, node); 94 const bool is_current_entry = ui_browser__is_current_entry(browser, row); 95 struct annotation_write_ops ops = { 96 .first_line = row == 0, 97 .current_entry = is_current_entry, 98 .change_color = (!annotate_opts.hide_src_code && 99 (!is_current_entry || 100 (browser->use_navkeypressed && 101 !browser->navkeypressed))), 102 .width = browser->width, 103 .obj = browser, 104 .set_color = annotate_browser__set_color, 105 .set_percent_color = annotate_browser__set_percent_color, 106 .set_jumps_percent_color = ui_browser__set_jumps_percent_color, 107 .printf = annotate_browser__printf, 108 .write_graph = annotate_browser__write_graph, 109 }; 110 111 /* The scroll bar isn't being used */ 112 if (!browser->navkeypressed) 113 ops.width += 1; 114 115 annotation_line__write(al, notes, &ops); 116 117 if (ops.current_entry) 118 ab->selection = al; 119 } 120 121 static int is_fused(struct annotate_browser *ab, struct disasm_line *cursor) 122 { 123 struct disasm_line *pos = list_prev_entry(cursor, al.node); 124 const char *name; 125 int diff = 1; 126 127 while (pos && pos->al.offset == -1) { 128 pos = list_prev_entry(pos, al.node); 129 if (!annotate_opts.hide_src_code) 130 diff++; 131 } 132 133 if (!pos) 134 return 0; 135 136 if (ins__is_lock(&pos->ins)) 137 name = pos->ops.locked.ins.name; 138 else 139 name = pos->ins.name; 140 141 if (!name || !cursor->ins.name) 142 return 0; 143 144 if (ins__is_fused(ab->arch, name, cursor->ins.name)) 145 return diff; 146 return 0; 147 } 148 149 static void annotate_browser__draw_current_jump(struct ui_browser *browser) 150 { 151 struct annotate_browser *ab = container_of(browser, struct annotate_browser, b); 152 struct disasm_line *cursor = disasm_line(ab->selection); 153 struct annotation_line *target; 154 unsigned int from, to; 155 struct map_symbol *ms = ab->b.priv; 156 struct symbol *sym = ms->sym; 157 struct annotation *notes = symbol__annotation(sym); 158 u8 pcnt_width = annotation__pcnt_width(notes); 159 u8 cntr_width = annotation__br_cntr_width(); 160 int width; 161 int diff = 0; 162 163 /* PLT symbols contain external offsets */ 164 if (strstr(sym->name, "@plt")) 165 return; 166 167 if (!disasm_line__is_valid_local_jump(cursor, sym)) 168 return; 169 170 /* 171 * This first was seen with a gcc function, _cpp_lex_token, that 172 * has the usual jumps: 173 * 174 * │1159e6c: ↓ jne 115aa32 <_cpp_lex_token@@Base+0xf92> 175 * 176 * I.e. jumps to a label inside that function (_cpp_lex_token), and 177 * those works, but also this kind: 178 * 179 * │1159e8b: ↓ jne c469be <cpp_named_operator2name@@Base+0xa72> 180 * 181 * I.e. jumps to another function, outside _cpp_lex_token, which 182 * are not being correctly handled generating as a side effect references 183 * to ab->offset[] entries that are set to NULL, so to make this code 184 * more robust, check that here. 185 * 186 * A proper fix for will be put in place, looking at the function 187 * name right after the '<' token and probably treating this like a 188 * 'call' instruction. 189 */ 190 target = annotated_source__get_line(notes->src, cursor->ops.target.offset); 191 if (target == NULL) { 192 ui_helpline__printf("WARN: jump target inconsistency, press 'o', notes->offsets[%#x] = NULL\n", 193 cursor->ops.target.offset); 194 return; 195 } 196 197 if (annotate_opts.hide_src_code) { 198 from = cursor->al.idx_asm; 199 to = target->idx_asm; 200 } else { 201 from = (u64)cursor->al.idx; 202 to = (u64)target->idx; 203 } 204 205 width = annotation__cycles_width(notes); 206 207 ui_browser__set_color(browser, HE_COLORSET_JUMP_ARROWS); 208 __ui_browser__line_arrow(browser, 209 pcnt_width + 2 + notes->src->widths.addr + width + cntr_width, 210 from, to); 211 212 diff = is_fused(ab, cursor); 213 if (diff > 0) { 214 ui_browser__mark_fused(browser, 215 pcnt_width + 3 + notes->src->widths.addr + width + cntr_width, 216 from - diff, diff, to > from); 217 } 218 } 219 220 static unsigned int annotate_browser__refresh(struct ui_browser *browser) 221 { 222 struct annotation *notes = browser__annotation(browser); 223 int ret = ui_browser__list_head_refresh(browser); 224 int pcnt_width = annotation__pcnt_width(notes); 225 226 if (annotate_opts.jump_arrows) 227 annotate_browser__draw_current_jump(browser); 228 229 ui_browser__set_color(browser, HE_COLORSET_NORMAL); 230 __ui_browser__vline(browser, pcnt_width, 0, browser->rows - 1); 231 return ret; 232 } 233 234 static double disasm__cmp(struct annotation_line *a, struct annotation_line *b, 235 int percent_type) 236 { 237 int i; 238 239 for (i = 0; i < a->data_nr; i++) { 240 if (a->data[i].percent[percent_type] == b->data[i].percent[percent_type]) 241 continue; 242 return a->data[i].percent[percent_type] - 243 b->data[i].percent[percent_type]; 244 } 245 return 0; 246 } 247 248 static void disasm_rb_tree__insert(struct annotate_browser *browser, 249 struct annotation_line *al) 250 { 251 struct rb_root *root = &browser->entries; 252 struct rb_node **p = &root->rb_node; 253 struct rb_node *parent = NULL; 254 struct annotation_line *l; 255 256 while (*p != NULL) { 257 parent = *p; 258 l = rb_entry(parent, struct annotation_line, rb_node); 259 260 if (disasm__cmp(al, l, annotate_opts.percent_type) < 0) 261 p = &(*p)->rb_left; 262 else 263 p = &(*p)->rb_right; 264 } 265 rb_link_node(&al->rb_node, parent, p); 266 rb_insert_color(&al->rb_node, root); 267 } 268 269 static void annotate_browser__set_top(struct annotate_browser *browser, 270 struct annotation_line *pos, u32 idx) 271 { 272 unsigned back; 273 274 ui_browser__refresh_dimensions(&browser->b); 275 back = browser->b.height / 2; 276 browser->b.top_idx = browser->b.index = idx; 277 278 while (browser->b.top_idx != 0 && back != 0) { 279 pos = list_entry(pos->node.prev, struct annotation_line, node); 280 281 if (annotation_line__filter(pos)) 282 continue; 283 284 --browser->b.top_idx; 285 --back; 286 } 287 288 browser->b.top = pos; 289 browser->b.navkeypressed = true; 290 } 291 292 static void annotate_browser__set_rb_top(struct annotate_browser *browser, 293 struct rb_node *nd) 294 { 295 struct annotation_line * pos = rb_entry(nd, struct annotation_line, rb_node); 296 u32 idx = pos->idx; 297 298 if (annotate_opts.hide_src_code) 299 idx = pos->idx_asm; 300 annotate_browser__set_top(browser, pos, idx); 301 browser->curr_hot = nd; 302 } 303 304 static void annotate_browser__calc_percent(struct annotate_browser *browser, 305 struct evsel *evsel) 306 { 307 struct map_symbol *ms = browser->b.priv; 308 struct symbol *sym = ms->sym; 309 struct annotation *notes = symbol__annotation(sym); 310 struct disasm_line *pos; 311 312 browser->entries = RB_ROOT; 313 314 annotation__lock(notes); 315 316 symbol__calc_percent(sym, evsel); 317 318 list_for_each_entry(pos, ¬es->src->source, al.node) { 319 double max_percent = 0.0; 320 int i; 321 322 if (pos->al.offset == -1) { 323 RB_CLEAR_NODE(&pos->al.rb_node); 324 continue; 325 } 326 327 for (i = 0; i < pos->al.data_nr; i++) { 328 double percent; 329 330 percent = annotation_data__percent(&pos->al.data[i], 331 annotate_opts.percent_type); 332 333 if (max_percent < percent) 334 max_percent = percent; 335 } 336 337 if (max_percent < 0.01 && (!pos->al.cycles || pos->al.cycles->ipc == 0)) { 338 RB_CLEAR_NODE(&pos->al.rb_node); 339 continue; 340 } 341 disasm_rb_tree__insert(browser, &pos->al); 342 } 343 annotation__unlock(notes); 344 345 browser->curr_hot = rb_last(&browser->entries); 346 } 347 348 static struct annotation_line *annotate_browser__find_next_asm_line( 349 struct annotate_browser *browser, 350 struct annotation_line *al) 351 { 352 struct annotation_line *it = al; 353 354 /* find next asm line */ 355 list_for_each_entry_continue(it, browser->b.entries, node) { 356 if (it->idx_asm >= 0) 357 return it; 358 } 359 360 /* no asm line found forwards, try backwards */ 361 it = al; 362 list_for_each_entry_continue_reverse(it, browser->b.entries, node) { 363 if (it->idx_asm >= 0) 364 return it; 365 } 366 367 /* There are no asm lines */ 368 return NULL; 369 } 370 371 static bool annotate_browser__toggle_source(struct annotate_browser *browser) 372 { 373 struct annotation *notes = browser__annotation(&browser->b); 374 struct annotation_line *al; 375 off_t offset = browser->b.index - browser->b.top_idx; 376 377 browser->b.seek(&browser->b, offset, SEEK_CUR); 378 al = list_entry(browser->b.top, struct annotation_line, node); 379 380 if (annotate_opts.hide_src_code) { 381 if (al->idx_asm < offset) 382 offset = al->idx; 383 384 browser->b.nr_entries = notes->src->nr_entries; 385 annotate_opts.hide_src_code = false; 386 browser->b.seek(&browser->b, -offset, SEEK_CUR); 387 browser->b.top_idx = al->idx - offset; 388 browser->b.index = al->idx; 389 } else { 390 if (al->idx_asm < 0) { 391 /* move cursor to next asm line */ 392 al = annotate_browser__find_next_asm_line(browser, al); 393 if (!al) { 394 browser->b.seek(&browser->b, -offset, SEEK_CUR); 395 return false; 396 } 397 } 398 399 if (al->idx_asm < offset) 400 offset = al->idx_asm; 401 402 browser->b.nr_entries = notes->src->nr_asm_entries; 403 annotate_opts.hide_src_code = true; 404 browser->b.seek(&browser->b, -offset, SEEK_CUR); 405 browser->b.top_idx = al->idx_asm - offset; 406 browser->b.index = al->idx_asm; 407 } 408 409 return true; 410 } 411 412 #define SYM_TITLE_MAX_SIZE (PATH_MAX + 64) 413 414 static void annotate_browser__show_full_location(struct ui_browser *browser) 415 { 416 struct annotate_browser *ab = container_of(browser, struct annotate_browser, b); 417 struct disasm_line *cursor = disasm_line(ab->selection); 418 struct annotation_line *al = &cursor->al; 419 420 if (al->offset != -1) 421 ui_helpline__puts("Only available for source code lines."); 422 else if (al->fileloc == NULL) 423 ui_helpline__puts("No source file location."); 424 else { 425 char help_line[SYM_TITLE_MAX_SIZE]; 426 sprintf (help_line, "Source file location: %s", al->fileloc); 427 ui_helpline__puts(help_line); 428 } 429 } 430 431 static void ui_browser__init_asm_mode(struct ui_browser *browser) 432 { 433 struct annotation *notes = browser__annotation(browser); 434 ui_browser__reset_index(browser); 435 browser->nr_entries = notes->src->nr_asm_entries; 436 } 437 438 static int sym_title(struct symbol *sym, struct map *map, char *title, 439 size_t sz, int percent_type) 440 { 441 return snprintf(title, sz, "%s %s [Percent: %s]", sym->name, 442 dso__long_name(map__dso(map)), 443 percent_type_str(percent_type)); 444 } 445 446 /* 447 * This can be called from external jumps, i.e. jumps from one function 448 * to another, like from the kernel's entry_SYSCALL_64 function to the 449 * swapgs_restore_regs_and_return_to_usermode() function. 450 * 451 * So all we check here is that dl->ops.target.sym is set, if it is, just 452 * go to that function and when exiting from its disassembly, come back 453 * to the calling function. 454 */ 455 static bool annotate_browser__callq(struct annotate_browser *browser, 456 struct evsel *evsel, 457 struct hist_browser_timer *hbt) 458 { 459 struct map_symbol *ms = browser->b.priv, target_ms; 460 struct disasm_line *dl = disasm_line(browser->selection); 461 struct annotation *notes; 462 char title[SYM_TITLE_MAX_SIZE]; 463 464 if (!dl->ops.target.sym) { 465 ui_helpline__puts("The called function was not found."); 466 return true; 467 } 468 469 notes = symbol__annotation(dl->ops.target.sym); 470 annotation__lock(notes); 471 472 if (!symbol__hists(dl->ops.target.sym, evsel->evlist->core.nr_entries)) { 473 annotation__unlock(notes); 474 ui__warning("Not enough memory for annotating '%s' symbol!\n", 475 dl->ops.target.sym->name); 476 return true; 477 } 478 479 target_ms.maps = ms->maps; 480 target_ms.map = ms->map; 481 target_ms.sym = dl->ops.target.sym; 482 annotation__unlock(notes); 483 symbol__tui_annotate(&target_ms, evsel, hbt); 484 sym_title(ms->sym, ms->map, title, sizeof(title), annotate_opts.percent_type); 485 ui_browser__show_title(&browser->b, title); 486 return true; 487 } 488 489 static 490 struct disasm_line *annotate_browser__find_offset(struct annotate_browser *browser, 491 s64 offset, s64 *idx) 492 { 493 struct annotation *notes = browser__annotation(&browser->b); 494 struct disasm_line *pos; 495 496 *idx = 0; 497 list_for_each_entry(pos, ¬es->src->source, al.node) { 498 if (pos->al.offset == offset) 499 return pos; 500 if (!annotation_line__filter(&pos->al)) 501 ++*idx; 502 } 503 504 return NULL; 505 } 506 507 static bool annotate_browser__jump(struct annotate_browser *browser, 508 struct evsel *evsel, 509 struct hist_browser_timer *hbt) 510 { 511 struct disasm_line *dl = disasm_line(browser->selection); 512 u64 offset; 513 s64 idx; 514 515 if (!ins__is_jump(&dl->ins)) 516 return false; 517 518 if (dl->ops.target.outside) { 519 annotate_browser__callq(browser, evsel, hbt); 520 return true; 521 } 522 523 offset = dl->ops.target.offset; 524 dl = annotate_browser__find_offset(browser, offset, &idx); 525 if (dl == NULL) { 526 ui_helpline__printf("Invalid jump offset: %" PRIx64, offset); 527 return true; 528 } 529 530 annotate_browser__set_top(browser, &dl->al, idx); 531 532 return true; 533 } 534 535 static 536 struct annotation_line *annotate_browser__find_string(struct annotate_browser *browser, 537 char *s, s64 *idx) 538 { 539 struct annotation *notes = browser__annotation(&browser->b); 540 struct annotation_line *al = browser->selection; 541 542 *idx = browser->b.index; 543 list_for_each_entry_continue(al, ¬es->src->source, node) { 544 if (annotation_line__filter(al)) 545 continue; 546 547 ++*idx; 548 549 if (al->line && strstr(al->line, s) != NULL) 550 return al; 551 } 552 553 return NULL; 554 } 555 556 static bool __annotate_browser__search(struct annotate_browser *browser) 557 { 558 struct annotation_line *al; 559 s64 idx; 560 561 al = annotate_browser__find_string(browser, browser->search_bf, &idx); 562 if (al == NULL) { 563 ui_helpline__puts("String not found!"); 564 return false; 565 } 566 567 annotate_browser__set_top(browser, al, idx); 568 browser->searching_backwards = false; 569 return true; 570 } 571 572 static 573 struct annotation_line *annotate_browser__find_string_reverse(struct annotate_browser *browser, 574 char *s, s64 *idx) 575 { 576 struct annotation *notes = browser__annotation(&browser->b); 577 struct annotation_line *al = browser->selection; 578 579 *idx = browser->b.index; 580 list_for_each_entry_continue_reverse(al, ¬es->src->source, node) { 581 if (annotation_line__filter(al)) 582 continue; 583 584 --*idx; 585 586 if (al->line && strstr(al->line, s) != NULL) 587 return al; 588 } 589 590 return NULL; 591 } 592 593 static bool __annotate_browser__search_reverse(struct annotate_browser *browser) 594 { 595 struct annotation_line *al; 596 s64 idx; 597 598 al = annotate_browser__find_string_reverse(browser, browser->search_bf, &idx); 599 if (al == NULL) { 600 ui_helpline__puts("String not found!"); 601 return false; 602 } 603 604 annotate_browser__set_top(browser, al, idx); 605 browser->searching_backwards = true; 606 return true; 607 } 608 609 static bool annotate_browser__search_window(struct annotate_browser *browser, 610 int delay_secs) 611 { 612 if (ui_browser__input_window("Search", "String: ", browser->search_bf, 613 "ENTER: OK, ESC: Cancel", 614 delay_secs * 2) != K_ENTER || 615 !*browser->search_bf) 616 return false; 617 618 return true; 619 } 620 621 static bool annotate_browser__search(struct annotate_browser *browser, int delay_secs) 622 { 623 if (annotate_browser__search_window(browser, delay_secs)) 624 return __annotate_browser__search(browser); 625 626 return false; 627 } 628 629 static bool annotate_browser__continue_search(struct annotate_browser *browser, 630 int delay_secs) 631 { 632 if (!*browser->search_bf) 633 return annotate_browser__search(browser, delay_secs); 634 635 return __annotate_browser__search(browser); 636 } 637 638 static bool annotate_browser__search_reverse(struct annotate_browser *browser, 639 int delay_secs) 640 { 641 if (annotate_browser__search_window(browser, delay_secs)) 642 return __annotate_browser__search_reverse(browser); 643 644 return false; 645 } 646 647 static 648 bool annotate_browser__continue_search_reverse(struct annotate_browser *browser, 649 int delay_secs) 650 { 651 if (!*browser->search_bf) 652 return annotate_browser__search_reverse(browser, delay_secs); 653 654 return __annotate_browser__search_reverse(browser); 655 } 656 657 static int annotate_browser__show(struct ui_browser *browser, char *title, const char *help) 658 { 659 struct map_symbol *ms = browser->priv; 660 struct symbol *sym = ms->sym; 661 char symbol_dso[SYM_TITLE_MAX_SIZE]; 662 663 if (ui_browser__show(browser, title, help) < 0) 664 return -1; 665 666 sym_title(sym, ms->map, symbol_dso, sizeof(symbol_dso), annotate_opts.percent_type); 667 668 ui_browser__gotorc_title(browser, 0, 0); 669 ui_browser__set_color(browser, HE_COLORSET_ROOT); 670 ui_browser__write_nstring(browser, symbol_dso, browser->width + 1); 671 return 0; 672 } 673 674 static void 675 switch_percent_type(struct annotation_options *opts, bool base) 676 { 677 switch (opts->percent_type) { 678 case PERCENT_HITS_LOCAL: 679 if (base) 680 opts->percent_type = PERCENT_PERIOD_LOCAL; 681 else 682 opts->percent_type = PERCENT_HITS_GLOBAL; 683 break; 684 case PERCENT_HITS_GLOBAL: 685 if (base) 686 opts->percent_type = PERCENT_PERIOD_GLOBAL; 687 else 688 opts->percent_type = PERCENT_HITS_LOCAL; 689 break; 690 case PERCENT_PERIOD_LOCAL: 691 if (base) 692 opts->percent_type = PERCENT_HITS_LOCAL; 693 else 694 opts->percent_type = PERCENT_PERIOD_GLOBAL; 695 break; 696 case PERCENT_PERIOD_GLOBAL: 697 if (base) 698 opts->percent_type = PERCENT_HITS_GLOBAL; 699 else 700 opts->percent_type = PERCENT_PERIOD_LOCAL; 701 break; 702 default: 703 WARN_ON(1); 704 } 705 } 706 707 static int annotate_browser__run(struct annotate_browser *browser, 708 struct evsel *evsel, 709 struct hist_browser_timer *hbt) 710 { 711 struct rb_node *nd = NULL; 712 struct hists *hists = evsel__hists(evsel); 713 struct map_symbol *ms = browser->b.priv; 714 struct symbol *sym = ms->sym; 715 struct annotation *notes = symbol__annotation(ms->sym); 716 const char *help = "Press 'h' for help on key bindings"; 717 int delay_secs = hbt ? hbt->refresh : 0; 718 char *br_cntr_text = NULL; 719 char title[256]; 720 int key; 721 722 hists__scnprintf_title(hists, title, sizeof(title)); 723 if (annotate_browser__show(&browser->b, title, help) < 0) 724 return -1; 725 726 annotate_browser__calc_percent(browser, evsel); 727 728 if (browser->curr_hot) { 729 annotate_browser__set_rb_top(browser, browser->curr_hot); 730 browser->b.navkeypressed = false; 731 } 732 733 nd = browser->curr_hot; 734 735 annotation_br_cntr_abbr_list(&br_cntr_text, evsel, false); 736 737 while (1) { 738 key = ui_browser__run(&browser->b, delay_secs); 739 740 if (delay_secs != 0) { 741 annotate_browser__calc_percent(browser, evsel); 742 /* 743 * Current line focus got out of the list of most active 744 * lines, NULL it so that if TAB|UNTAB is pressed, we 745 * move to curr_hot (current hottest line). 746 */ 747 if (nd != NULL && RB_EMPTY_NODE(nd)) 748 nd = NULL; 749 } 750 751 switch (key) { 752 case K_TIMER: 753 if (hbt) 754 hbt->timer(hbt->arg); 755 756 if (delay_secs != 0) { 757 symbol__annotate_decay_histogram(sym, evsel); 758 hists__scnprintf_title(hists, title, sizeof(title)); 759 annotate_browser__show(&browser->b, title, help); 760 } 761 continue; 762 case K_TAB: 763 if (nd != NULL) { 764 nd = rb_prev(nd); 765 if (nd == NULL) 766 nd = rb_last(&browser->entries); 767 } else 768 nd = browser->curr_hot; 769 break; 770 case K_UNTAB: 771 if (nd != NULL) { 772 nd = rb_next(nd); 773 if (nd == NULL) 774 nd = rb_first(&browser->entries); 775 } else 776 nd = browser->curr_hot; 777 break; 778 case K_F1: 779 case 'h': 780 ui_browser__help_window(&browser->b, 781 "UP/DOWN/PGUP\n" 782 "PGDN/SPACE Navigate\n" 783 "</> Move to prev/next symbol\n" 784 "q/ESC/CTRL+C Exit\n\n" 785 "ENTER Go to target\n" 786 "H Go to hottest instruction\n" 787 "TAB/shift+TAB Cycle thru hottest instructions\n" 788 "j Toggle showing jump to target arrows\n" 789 "J Toggle showing number of jump sources on targets\n" 790 "n Search next string\n" 791 "o Toggle disassembler output/simplified view\n" 792 "O Bump offset level (jump targets -> +call -> all -> cycle thru)\n" 793 "s Toggle source code view\n" 794 "t Circulate percent, total period, samples view\n" 795 "c Show min/max cycle\n" 796 "/ Search string\n" 797 "k Toggle line numbers\n" 798 "l Show full source file location\n" 799 "P Print to [symbol_name].annotation file.\n" 800 "r Run available scripts\n" 801 "p Toggle percent type [local/global]\n" 802 "b Toggle percent base [period/hits]\n" 803 "B Branch counter abbr list (Optional)\n" 804 "? Search string backwards\n" 805 "f Toggle showing offsets to full address\n"); 806 continue; 807 case 'r': 808 script_browse(NULL, NULL); 809 annotate_browser__show(&browser->b, title, help); 810 continue; 811 case 'k': 812 annotate_opts.show_linenr = !annotate_opts.show_linenr; 813 continue; 814 case 'l': 815 annotate_browser__show_full_location (&browser->b); 816 continue; 817 case 'H': 818 nd = browser->curr_hot; 819 break; 820 case 's': 821 if (annotate_browser__toggle_source(browser)) 822 ui_helpline__puts(help); 823 continue; 824 case 'o': 825 annotate_opts.use_offset = !annotate_opts.use_offset; 826 annotation__update_column_widths(notes); 827 continue; 828 case 'O': 829 if (++annotate_opts.offset_level > ANNOTATION__MAX_OFFSET_LEVEL) 830 annotate_opts.offset_level = ANNOTATION__MIN_OFFSET_LEVEL; 831 continue; 832 case 'j': 833 annotate_opts.jump_arrows = !annotate_opts.jump_arrows; 834 continue; 835 case 'J': 836 annotate_opts.show_nr_jumps = !annotate_opts.show_nr_jumps; 837 annotation__update_column_widths(notes); 838 continue; 839 case '/': 840 if (annotate_browser__search(browser, delay_secs)) { 841 show_help: 842 ui_helpline__puts(help); 843 } 844 continue; 845 case 'n': 846 if (browser->searching_backwards ? 847 annotate_browser__continue_search_reverse(browser, delay_secs) : 848 annotate_browser__continue_search(browser, delay_secs)) 849 goto show_help; 850 continue; 851 case '?': 852 if (annotate_browser__search_reverse(browser, delay_secs)) 853 goto show_help; 854 continue; 855 case 'D': { 856 static int seq; 857 ui_helpline__pop(); 858 ui_helpline__fpush("%d: nr_ent=%d, height=%d, idx=%d, top_idx=%d, nr_asm_entries=%d", 859 seq++, browser->b.nr_entries, 860 browser->b.height, 861 browser->b.index, 862 browser->b.top_idx, 863 notes->src->nr_asm_entries); 864 } 865 continue; 866 case K_ENTER: 867 case K_RIGHT: 868 { 869 struct disasm_line *dl = disasm_line(browser->selection); 870 871 if (browser->selection == NULL) 872 ui_helpline__puts("Huh? No selection. Report to linux-kernel@vger.kernel.org"); 873 else if (browser->selection->offset == -1) 874 ui_helpline__puts("Actions are only available for assembly lines."); 875 else if (!dl->ins.ops) 876 goto show_sup_ins; 877 else if (ins__is_ret(&dl->ins)) 878 goto out; 879 else if (!(annotate_browser__jump(browser, evsel, hbt) || 880 annotate_browser__callq(browser, evsel, hbt))) { 881 show_sup_ins: 882 ui_helpline__puts("Actions are only available for function call/return & jump/branch instructions."); 883 } 884 continue; 885 } 886 case 'P': 887 map_symbol__annotation_dump(ms, evsel); 888 continue; 889 case 't': 890 if (symbol_conf.show_total_period) { 891 symbol_conf.show_total_period = false; 892 symbol_conf.show_nr_samples = true; 893 } else if (symbol_conf.show_nr_samples) 894 symbol_conf.show_nr_samples = false; 895 else 896 symbol_conf.show_total_period = true; 897 annotation__update_column_widths(notes); 898 continue; 899 case 'c': 900 if (annotate_opts.show_minmax_cycle) 901 annotate_opts.show_minmax_cycle = false; 902 else 903 annotate_opts.show_minmax_cycle = true; 904 annotation__update_column_widths(notes); 905 continue; 906 case 'p': 907 case 'b': 908 switch_percent_type(&annotate_opts, key == 'b'); 909 hists__scnprintf_title(hists, title, sizeof(title)); 910 annotate_browser__show(&browser->b, title, help); 911 continue; 912 case 'B': 913 if (br_cntr_text) 914 ui_browser__help_window(&browser->b, br_cntr_text); 915 else { 916 ui_browser__help_window(&browser->b, 917 "\n The branch counter is not available.\n"); 918 } 919 continue; 920 case 'f': 921 annotation__toggle_full_addr(notes, ms); 922 continue; 923 case K_LEFT: 924 case '<': 925 case '>': 926 case K_ESC: 927 case 'q': 928 case CTRL('c'): 929 goto out; 930 default: 931 continue; 932 } 933 934 if (nd != NULL) 935 annotate_browser__set_rb_top(browser, nd); 936 } 937 out: 938 ui_browser__hide(&browser->b); 939 free(br_cntr_text); 940 return key; 941 } 942 943 int map_symbol__tui_annotate(struct map_symbol *ms, struct evsel *evsel, 944 struct hist_browser_timer *hbt) 945 { 946 return symbol__tui_annotate(ms, evsel, hbt); 947 } 948 949 int hist_entry__tui_annotate(struct hist_entry *he, struct evsel *evsel, 950 struct hist_browser_timer *hbt) 951 { 952 /* reset abort key so that it can get Ctrl-C as a key */ 953 SLang_reset_tty(); 954 SLang_init_tty(0, 0, 0); 955 SLtty_set_suspend_state(true); 956 957 return map_symbol__tui_annotate(&he->ms, evsel, hbt); 958 } 959 960 int symbol__tui_annotate(struct map_symbol *ms, struct evsel *evsel, 961 struct hist_browser_timer *hbt) 962 { 963 struct symbol *sym = ms->sym; 964 struct annotation *notes = symbol__annotation(sym); 965 struct annotate_browser browser = { 966 .b = { 967 .refresh = annotate_browser__refresh, 968 .seek = ui_browser__list_head_seek, 969 .write = annotate_browser__write, 970 .filter = disasm_line__filter, 971 .extra_title_lines = 1, /* for hists__scnprintf_title() */ 972 .priv = ms, 973 .use_navkeypressed = true, 974 }, 975 }; 976 struct dso *dso; 977 int ret = -1, err; 978 int not_annotated = list_empty(¬es->src->source); 979 980 if (sym == NULL) 981 return -1; 982 983 dso = map__dso(ms->map); 984 if (dso__annotate_warned(dso)) 985 return -1; 986 987 if (not_annotated || !sym->annotate2) { 988 err = symbol__annotate2(ms, evsel, &browser.arch); 989 if (err) { 990 char msg[BUFSIZ]; 991 dso__set_annotate_warned(dso); 992 symbol__strerror_disassemble(ms, err, msg, sizeof(msg)); 993 ui__error("Couldn't annotate %s:\n%s", sym->name, msg); 994 return -1; 995 } 996 } 997 998 ui_helpline__push("Press ESC to exit"); 999 1000 browser.b.width = notes->src->widths.max_line_len; 1001 browser.b.nr_entries = notes->src->nr_entries; 1002 browser.b.entries = ¬es->src->source; 1003 browser.b.width += 18; /* Percentage */ 1004 1005 if (annotate_opts.hide_src_code) 1006 ui_browser__init_asm_mode(&browser.b); 1007 1008 ret = annotate_browser__run(&browser, evsel, hbt); 1009 1010 if(not_annotated) 1011 annotated_source__purge(notes->src); 1012 1013 return ret; 1014 } 1015