tools/perf/ui/browsers/annotate.c

   1 #include "../../util/util.h"
   2 #include "../browser.h"
   3 #include "../helpline.h"
   4 #include "../libslang.h"
   5 #include "../ui.h"
   6 #include "../util.h"
   7 #include "../../util/annotate.h"
   8 #include "../../util/hist.h"
   9 #include "../../util/sort.h"
  10 #include "../../util/symbol.h"
  11 #include <pthread.h>
  12 #include <newt.h>
  13
  14 struct browser_disasm_line {
  15         struct rb_node  rb_node;
  16         double          percent;
  17         u32             idx;
  18         int             idx_asm;
  19         bool            jump_target;
  20 };
  21
  22 struct annotate_browser {
  23         struct ui_browser b;
  24         struct rb_root    entries;
  25         struct rb_node    *curr_hot;
  26         struct disasm_line        *selection;
  27         struct disasm_line  **offsets;
  28         u64                 start;
  29         int                 nr_asm_entries;
  30         int                 nr_entries;
  31         bool                hide_src_code;
  32         bool                use_offset;
  33         bool                searching_backwards;
  34         u8                  offset_width;
  35         char                search_bf[128];
  36 };
  37
  38 static inline struct browser_disasm_line *disasm_line__browser(struct disasm_line *dl)
  39 {
  40         return (struct browser_disasm_line *)(dl + 1);
  41 }
  42
  43 static bool disasm_line__filter(struct ui_browser *browser, void *entry)
  44 {
  45         struct annotate_browser *ab = container_of(browser, struct annotate_browser, b);
  46
  47         if (ab->hide_src_code) {
  48                 struct disasm_line *dl = list_entry(entry, struct disasm_line, node);
  49                 return dl->offset == -1;
  50         }
  51
  52         return false;
  53 }
  54
  55 static void annotate_browser__write(struct ui_browser *self, void *entry, int row)
  56 {
  57         struct annotate_browser *ab = container_of(self, struct annotate_browser, b);
  58         struct disasm_line *dl = list_entry(entry, struct disasm_line, node);
  59         struct browser_disasm_line *bdl = disasm_line__browser(dl);
  60         bool current_entry = ui_browser__is_current_entry(self, row);
  61         bool change_color = (!ab->hide_src_code &&
  62                              (!current_entry || (self->use_navkeypressed &&
  63                                                  !self->navkeypressed)));
  64         int width = self->width;
  65
  66         if (dl->offset != -1) {
  67                 ui_browser__set_percent_color(self, bdl->percent, current_entry);
  68                 slsmg_printf(" %7.2f ", bdl->percent);
  69         } else {
  70                 ui_browser__set_percent_color(self, 0, current_entry);
  71                 slsmg_write_nstring(" ", 9);
  72         }
  73
  74         ui_browser__write_graph(self, SLSMG_VLINE_CHAR);
  75         SLsmg_write_char(' ');
  76
  77         /* The scroll bar isn't being used */
  78         if (!self->navkeypressed)
  79                 width += 1;
  80
  81         if (dl->offset != -1 && change_color)
  82                 ui_browser__set_color(self, HE_COLORSET_CODE);
  83
  84         if (!*dl->line)
  85                 slsmg_write_nstring(" ", width - 10);
  86         else if (dl->offset == -1)
  87                 slsmg_write_nstring(dl->line, width - 10);
  88         else {
  89                 char bf[256];
  90                 u64 addr = dl->offset;
  91                 int printed, color = -1;
  92
  93                 if (!ab->use_offset)
  94                         addr += ab->start;
  95
  96                 if (!ab->use_offset) {
  97                         printed = scnprintf(bf, sizeof(bf), "  %" PRIx64 ":", addr);
  98                 } else {
  99                         if (bdl->jump_target) {
 100                                 printed = scnprintf(bf, sizeof(bf), "  %*" PRIx64 ":",
 101                                                     ab->offset_width, addr);
 102                         } else {
 103                                 printed = scnprintf(bf, sizeof(bf), "  %*s ",
 104                                                     ab->offset_width, " ");
 105                         }
 106                 }
 107
 108                 if (change_color)
 109                         color = ui_browser__set_color(self, HE_COLORSET_ADDR);
 110                 slsmg_write_nstring(bf, printed);
 111                 if (change_color)
 112                         ui_browser__set_color(self, color);
 113                 if (dl->ins && dl->ins->ops->scnprintf) {
 114                         if (ins__is_jump(dl->ins)) {
 115                                 bool fwd = dl->ops.target > (u64)dl->offset;
 116
 117                                 ui_browser__write_graph(self, fwd ? SLSMG_DARROW_CHAR :
 118                                                                     SLSMG_UARROW_CHAR);
 119                                 SLsmg_write_char(' ');
 120                         } else {
 121                                 slsmg_write_nstring(" ", 2);
 122                         }
 123
 124                         dl->ins->ops->scnprintf(dl->ins, bf, sizeof(bf), &dl->ops,
 125                                                 !ab->use_offset);
 126                 } else {
 127                         if (strcmp(dl->name, "retq")) {
 128                                 slsmg_write_nstring(" ", 2);
 129                         } else {
 130                                 ui_browser__write_graph(self, SLSMG_LARROW_CHAR);
 131                                 SLsmg_write_char(' ');
 132                         }
 133
 134                         scnprintf(bf, sizeof(bf), "%-6.6s %s", dl->name, dl->ops.raw);
 135                 }
 136
 137                 slsmg_write_nstring(bf, width - 12 - printed);
 138         }
 139
 140         if (current_entry)
 141                 ab->selection = dl;
 142 }
 143
 144 static void annotate_browser__draw_current_loop(struct ui_browser *browser)
 145 {
 146         struct annotate_browser *ab = container_of(browser, struct annotate_browser, b);
 147         struct map_symbol *ms = browser->priv;
 148         struct symbol *sym = ms->sym;
 149         struct annotation *notes = symbol__annotation(sym);
 150         struct disasm_line *cursor = ab->selection, *pos = cursor, *target;
 151         struct browser_disasm_line *bcursor = disasm_line__browser(cursor),
 152                                    *btarget, *bpos;
 153         unsigned int from, to, start_width = 2;
 154
 155         list_for_each_entry_from(pos, &notes->src->source, node) {
 156                 if (!pos->ins || !ins__is_jump(pos->ins))
 157                         continue;
 158
 159                 target = ab->offsets[pos->ops.target];
 160                 if (!target)
 161                         continue;
 162
 163                 btarget = disasm_line__browser(target);
 164                 if (btarget->idx <= bcursor->idx)
 165                         goto found;
 166         }
 167
 168         return;
 169
 170 found:
 171         bpos = disasm_line__browser(pos);
 172         if (ab->hide_src_code) {
 173                 from = bpos->idx_asm;
 174                 to = btarget->idx_asm;
 175         } else {
 176                 from = (u64)bpos->idx;
 177                 to = (u64)btarget->idx;
 178         }
 179
 180         ui_browser__set_color(browser, HE_COLORSET_CODE);
 181
 182         if (!bpos->jump_target)
 183                 start_width += ab->offset_width + 1;
 184
 185         __ui_browser__line_arrow_up(browser, 10, from, to, start_width);
 186 }
 187
 188 static unsigned int annotate_browser__refresh(struct ui_browser *browser)
 189 {
 190         int ret = ui_browser__list_head_refresh(browser);
 191
 192         annotate_browser__draw_current_loop(browser);
 193
 194         return ret;
 195 }
 196
 197 static double disasm_line__calc_percent(struct disasm_line *dl, struct symbol *sym, int evidx)
 198 {
 199         double percent = 0.0;
 200
 201         if (dl->offset != -1) {
 202                 int len = sym->end - sym->start;
 203                 unsigned int hits = 0;
 204                 struct annotation *notes = symbol__annotation(sym);
 205                 struct source_line *src_line = notes->src->lines;
 206                 struct sym_hist *h = annotation__histogram(notes, evidx);
 207                 s64 offset = dl->offset;
 208                 struct disasm_line *next;
 209
 210                 next = disasm__get_next_ip_line(&notes->src->source, dl);
 211                 while (offset < (s64)len &&
 212                        (next == NULL || offset < next->offset)) {
 213                         if (src_line) {
 214                                 percent += src_line[offset].percent;
 215                         } else
 216                                 hits += h->addr[offset];
 217
 218                         ++offset;
 219                 }
 220                 /*
 221                  * If the percentage wasn't already calculated in
 222                  * symbol__get_source_line, do it now:
 223                  */
 224                 if (src_line == NULL && h->sum)
 225                         percent = 100.0 * hits / h->sum;
 226         }
 227
 228         return percent;
 229 }
 230
 231 static void disasm_rb_tree__insert(struct rb_root *root, struct browser_disasm_line *bdl)
 232 {
 233         struct rb_node **p = &root->rb_node;
 234         struct rb_node *parent = NULL;
 235         struct browser_disasm_line *l;
 236
 237         while (*p != NULL) {
 238                 parent = *p;
 239                 l = rb_entry(parent, struct browser_disasm_line, rb_node);
 240                 if (bdl->percent < l->percent)
 241                         p = &(*p)->rb_left;
 242                 else
 243                         p = &(*p)->rb_right;
 244         }
 245         rb_link_node(&bdl->rb_node, parent, p);
 246         rb_insert_color(&bdl->rb_node, root);
 247 }
 248
 249 static void annotate_browser__set_top(struct annotate_browser *self,
 250                                       struct disasm_line *pos, u32 idx)
 251 {
 252         unsigned back;
 253
 254         ui_browser__refresh_dimensions(&self->b);
 255         back = self->b.height / 2;
 256         self->b.top_idx = self->b.index = idx;
 257
 258         while (self->b.top_idx != 0 && back != 0) {
 259                 pos = list_entry(pos->node.prev, struct disasm_line, node);
 260
 261                 if (disasm_line__filter(&self->b, &pos->node))
 262                         continue;
 263
 264                 --self->b.top_idx;
 265                 --back;
 266         }
 267
 268         self->b.top = pos;
 269         self->b.navkeypressed = true;
 270 }
 271
 272 static void annotate_browser__set_rb_top(struct annotate_browser *browser,
 273                                          struct rb_node *nd)
 274 {
 275         struct browser_disasm_line *bpos;
 276         struct disasm_line *pos;
 277
 278         bpos = rb_entry(nd, struct browser_disasm_line, rb_node);
 279         pos = ((struct disasm_line *)bpos) - 1;
 280         annotate_browser__set_top(browser, pos, bpos->idx);
 281         browser->curr_hot = nd;
 282 }
 283
 284 static void annotate_browser__calc_percent(struct annotate_browser *browser,
 285                                            int evidx)
 286 {
 287         struct map_symbol *ms = browser->b.priv;
 288         struct symbol *sym = ms->sym;
 289         struct annotation *notes = symbol__annotation(sym);
 290         struct disasm_line *pos;
 291
 292         browser->entries = RB_ROOT;
 293
 294         pthread_mutex_lock(&notes->lock);
 295
 296         list_for_each_entry(pos, &notes->src->source, node) {
 297                 struct browser_disasm_line *bpos = disasm_line__browser(pos);
 298                 bpos->percent = disasm_line__calc_percent(pos, sym, evidx);
 299                 if (bpos->percent < 0.01) {
 300                         RB_CLEAR_NODE(&bpos->rb_node);
 301                         continue;
 302                 }
 303                 disasm_rb_tree__insert(&browser->entries, bpos);
 304         }
 305         pthread_mutex_unlock(&notes->lock);
 306
 307         browser->curr_hot = rb_last(&browser->entries);
 308 }
 309
 310 static bool annotate_browser__toggle_source(struct annotate_browser *browser)
 311 {
 312         struct disasm_line *dl;
 313         struct browser_disasm_line *bdl;
 314         off_t offset = browser->b.index - browser->b.top_idx;
 315
 316         browser->b.seek(&browser->b, offset, SEEK_CUR);
 317         dl = list_entry(browser->b.top, struct disasm_line, node);
 318         bdl = disasm_line__browser(dl);
 319
 320         if (browser->hide_src_code) {
 321                 if (bdl->idx_asm < offset)
 322                         offset = bdl->idx;
 323
 324                 browser->b.nr_entries = browser->nr_entries;
 325                 browser->hide_src_code = false;
 326                 browser->b.seek(&browser->b, -offset, SEEK_CUR);
 327                 browser->b.top_idx = bdl->idx - offset;
 328                 browser->b.index = bdl->idx;
 329         } else {
 330                 if (bdl->idx_asm < 0) {
 331                         ui_helpline__puts("Only available for assembly lines.");
 332                         browser->b.seek(&browser->b, -offset, SEEK_CUR);
 333                         return false;
 334                 }
 335
 336                 if (bdl->idx_asm < offset)
 337                         offset = bdl->idx_asm;
 338
 339                 browser->b.nr_entries = browser->nr_asm_entries;
 340                 browser->hide_src_code = true;
 341                 browser->b.seek(&browser->b, -offset, SEEK_CUR);
 342                 browser->b.top_idx = bdl->idx_asm - offset;
 343                 browser->b.index = bdl->idx_asm;
 344         }
 345
 346         return true;
 347 }
 348
 349 static bool annotate_browser__callq(struct annotate_browser *browser,
 350                                     int evidx, void (*timer)(void *arg),
 351                                     void *arg, int delay_secs)
 352 {
 353         struct map_symbol *ms = browser->b.priv;
 354         struct disasm_line *dl = browser->selection;
 355         struct symbol *sym = ms->sym;
 356         struct annotation *notes;
 357         struct symbol *target;
 358         u64 ip;
 359
 360         if (!ins__is_call(dl->ins))
 361                 return false;
 362
 363         ip = ms->map->map_ip(ms->map, dl->ops.target);
 364         target = map__find_symbol(ms->map, ip, NULL);
 365         if (target == NULL) {
 366                 ui_helpline__puts("The called function was not found.");
 367                 return true;
 368         }
 369
 370         notes = symbol__annotation(target);
 371         pthread_mutex_lock(&notes->lock);
 372
 373         if (notes->src == NULL && symbol__alloc_hist(target) < 0) {
 374                 pthread_mutex_unlock(&notes->lock);
 375                 ui__warning("Not enough memory for annotating '%s' symbol!\n",
 376                             target->name);
 377                 return true;
 378         }
 379
 380         pthread_mutex_unlock(&notes->lock);
 381         symbol__tui_annotate(target, ms->map, evidx, timer, arg, delay_secs);
 382         ui_browser__show_title(&browser->b, sym->name);
 383         return true;
 384 }
 385
 386 static
 387 struct disasm_line *annotate_browser__find_offset(struct annotate_browser *browser,
 388                                           s64 offset, s64 *idx)
 389 {
 390         struct map_symbol *ms = browser->b.priv;
 391         struct symbol *sym = ms->sym;
 392         struct annotation *notes = symbol__annotation(sym);
 393         struct disasm_line *pos;
 394
 395         *idx = 0;
 396         list_for_each_entry(pos, &notes->src->source, node) {
 397                 if (pos->offset == offset)
 398                         return pos;
 399                 if (!disasm_line__filter(&browser->b, &pos->node))
 400                         ++*idx;
 401         }
 402
 403         return NULL;
 404 }
 405
 406 static bool annotate_browser__jump(struct annotate_browser *browser)
 407 {
 408         struct disasm_line *dl = browser->selection;
 409         s64 idx;
 410
 411         if (!ins__is_jump(dl->ins))
 412                 return false;
 413
 414         dl = annotate_browser__find_offset(browser, dl->ops.target, &idx);
 415         if (dl == NULL) {
 416                 ui_helpline__puts("Invallid jump offset");
 417                 return true;
 418         }
 419
 420         annotate_browser__set_top(browser, dl, idx);
 421
 422         return true;
 423 }
 424
 425 static
 426 struct disasm_line *annotate_browser__find_string(struct annotate_browser *browser,
 427                                           char *s, s64 *idx)
 428 {
 429         struct map_symbol *ms = browser->b.priv;
 430         struct symbol *sym = ms->sym;
 431         struct annotation *notes = symbol__annotation(sym);
 432         struct disasm_line *pos = browser->selection;
 433
 434         *idx = browser->b.index;
 435         list_for_each_entry_continue(pos, &notes->src->source, node) {
 436                 if (disasm_line__filter(&browser->b, &pos->node))
 437                         continue;
 438
 439                 ++*idx;
 440
 441                 if (pos->line && strstr(pos->line, s) != NULL)
 442                         return pos;
 443         }
 444
 445         return NULL;
 446 }
 447
 448 static bool __annotate_browser__search(struct annotate_browser *browser)
 449 {
 450         struct disasm_line *dl;
 451         s64 idx;
 452
 453         dl = annotate_browser__find_string(browser, browser->search_bf, &idx);
 454         if (dl == NULL) {
 455                 ui_helpline__puts("String not found!");
 456                 return false;
 457         }
 458
 459         annotate_browser__set_top(browser, dl, idx);
 460         browser->searching_backwards = false;
 461         return true;
 462 }
 463
 464 static
 465 struct disasm_line *annotate_browser__find_string_reverse(struct annotate_browser *browser,
 466                                                   char *s, s64 *idx)
 467 {
 468         struct map_symbol *ms = browser->b.priv;
 469         struct symbol *sym = ms->sym;
 470         struct annotation *notes = symbol__annotation(sym);
 471         struct disasm_line *pos = browser->selection;
 472
 473         *idx = browser->b.index;
 474         list_for_each_entry_continue_reverse(pos, &notes->src->source, node) {
 475                 if (disasm_line__filter(&browser->b, &pos->node))
 476                         continue;
 477
 478                 --*idx;
 479
 480                 if (pos->line && strstr(pos->line, s) != NULL)
 481                         return pos;
 482         }
 483
 484         return NULL;
 485 }
 486
 487 static bool __annotate_browser__search_reverse(struct annotate_browser *browser)
 488 {
 489         struct disasm_line *dl;
 490         s64 idx;
 491
 492         dl = annotate_browser__find_string_reverse(browser, browser->search_bf, &idx);
 493         if (dl == NULL) {
 494                 ui_helpline__puts("String not found!");
 495                 return false;
 496         }
 497
 498         annotate_browser__set_top(browser, dl, idx);
 499         browser->searching_backwards = true;
 500         return true;
 501 }
 502
 503 static bool annotate_browser__search_window(struct annotate_browser *browser,
 504                                             int delay_secs)
 505 {
 506         if (ui_browser__input_window("Search", "String: ", browser->search_bf,
 507                                      "ENTER: OK, ESC: Cancel",
 508                                      delay_secs * 2) != K_ENTER ||
 509             !*browser->search_bf)
 510                 return false;
 511
 512         return true;
 513 }
 514
 515 static bool annotate_browser__search(struct annotate_browser *browser, int delay_secs)
 516 {
 517         if (annotate_browser__search_window(browser, delay_secs))
 518                 return __annotate_browser__search(browser);
 519
 520         return false;
 521 }
 522
 523 static bool annotate_browser__continue_search(struct annotate_browser *browser,
 524                                               int delay_secs)
 525 {
 526         if (!*browser->search_bf)
 527                 return annotate_browser__search(browser, delay_secs);
 528
 529         return __annotate_browser__search(browser);
 530 }
 531
 532 static bool annotate_browser__search_reverse(struct annotate_browser *browser,
 533                                            int delay_secs)
 534 {
 535         if (annotate_browser__search_window(browser, delay_secs))
 536                 return __annotate_browser__search_reverse(browser);
 537
 538         return false;
 539 }
 540
 541 static
 542 bool annotate_browser__continue_search_reverse(struct annotate_browser *browser,
 543                                                int delay_secs)
 544 {
 545         if (!*browser->search_bf)
 546                 return annotate_browser__search_reverse(browser, delay_secs);
 547
 548         return __annotate_browser__search_reverse(browser);
 549 }
 550
 551 static int annotate_browser__run(struct annotate_browser *self, int evidx,
 552                                  void(*timer)(void *arg),
 553                                  void *arg, int delay_secs)
 554 {
 555         struct rb_node *nd = NULL;
 556         struct map_symbol *ms = self->b.priv;
 557         struct symbol *sym = ms->sym;
 558         const char *help = "<-/ESC: Exit, TAB/shift+TAB: Cycle hot lines, "
 559                            "H: Go to hottest line, ->/ENTER: Line action, "
 560                            "O: Toggle offset view, "
 561                            "S: Toggle source code view";
 562         int key;
 563
 564         if (ui_browser__show(&self->b, sym->name, help) < 0)
 565                 return -1;
 566
 567         annotate_browser__calc_percent(self, evidx);
 568
 569         if (self->curr_hot) {
 570                 annotate_browser__set_rb_top(self, self->curr_hot);
 571                 self->b.navkeypressed = false;
 572         }
 573
 574         nd = self->curr_hot;
 575
 576         while (1) {
 577                 key = ui_browser__run(&self->b, delay_secs);
 578
 579                 if (delay_secs != 0) {
 580                         annotate_browser__calc_percent(self, evidx);
 581                         /*
 582                          * Current line focus got out of the list of most active
 583                          * lines, NULL it so that if TAB|UNTAB is pressed, we
 584                          * move to curr_hot (current hottest line).
 585                          */
 586                         if (nd != NULL && RB_EMPTY_NODE(nd))
 587                                 nd = NULL;
 588                 }
 589
 590                 switch (key) {
 591                 case K_TIMER:
 592                         if (timer != NULL)
 593                                 timer(arg);
 594
 595                         if (delay_secs != 0)
 596                                 symbol__annotate_decay_histogram(sym, evidx);
 597                         continue;
 598                 case K_TAB:
 599                         if (nd != NULL) {
 600                                 nd = rb_prev(nd);
 601                                 if (nd == NULL)
 602                                         nd = rb_last(&self->entries);
 603                         } else
 604                                 nd = self->curr_hot;
 605                         break;
 606                 case K_UNTAB:
 607                         if (nd != NULL)
 608                                 nd = rb_next(nd);
 609                                 if (nd == NULL)
 610                                         nd = rb_first(&self->entries);
 611                         else
 612                                 nd = self->curr_hot;
 613                         break;
 614                 case 'H':
 615                 case 'h':
 616                         nd = self->curr_hot;
 617                         break;
 618                 case 'S':
 619                 case 's':
 620                         if (annotate_browser__toggle_source(self))
 621                                 ui_helpline__puts(help);
 622                         continue;
 623                 case 'O':
 624                 case 'o':
 625                         self->use_offset = !self->use_offset;
 626                         continue;
 627                 case '/':
 628                         if (annotate_browser__search(self, delay_secs)) {
 629 show_help:
 630                                 ui_helpline__puts(help);
 631                         }
 632                         continue;
 633                 case 'n':
 634                         if (self->searching_backwards ?
 635                             annotate_browser__continue_search_reverse(self, delay_secs) :
 636                             annotate_browser__continue_search(self, delay_secs))
 637                                 goto show_help;
 638                         continue;
 639                 case '?':
 640                         if (annotate_browser__search_reverse(self, delay_secs))
 641                                 goto show_help;
 642                         continue;
 643                 case K_ENTER:
 644                 case K_RIGHT:
 645                         if (self->selection == NULL)
 646                                 ui_helpline__puts("Huh? No selection. Report to linux-kernel@vger.kernel.org");
 647                         else if (self->selection->offset == -1)
 648                                 ui_helpline__puts("Actions are only available for assembly lines.");
 649                         else if (!self->selection->ins) {
 650                                 if (strcmp(self->selection->name, "retq"))
 651                                         goto show_sup_ins;
 652                                 goto out;
 653                         } else if (!(annotate_browser__jump(self) ||
 654                                      annotate_browser__callq(self, evidx, timer, arg, delay_secs))) {
 655 show_sup_ins:
 656                                 ui_helpline__puts("Actions are only available for 'callq', 'retq' & jump instructions.");
 657                         }
 658                         continue;
 659                 case K_LEFT:
 660                 case K_ESC:
 661                 case 'q':
 662                 case CTRL('c'):
 663                         goto out;
 664                 default:
 665                         continue;
 666                 }
 667
 668                 if (nd != NULL)
 669                         annotate_browser__set_rb_top(self, nd);
 670         }
 671 out:
 672         ui_browser__hide(&self->b);
 673         return key;
 674 }
 675
 676 int hist_entry__tui_annotate(struct hist_entry *he, int evidx,
 677                              void(*timer)(void *arg), void *arg, int delay_secs)
 678 {
 679         return symbol__tui_annotate(he->ms.sym, he->ms.map, evidx,
 680                                     timer, arg, delay_secs);
 681 }
 682
 683 static void annotate_browser__mark_jump_targets(struct annotate_browser *browser,
 684                                                 size_t size)
 685 {
 686         u64 offset;
 687
 688         for (offset = 0; offset < size; ++offset) {
 689                 struct disasm_line *dl = browser->offsets[offset], *dlt;
 690                 struct browser_disasm_line *bdlt;
 691
 692                 if (!dl || !dl->ins || !ins__is_jump(dl->ins))
 693                         continue;
 694
 695                 if (dl->ops.target >= size) {
 696                         ui__error("jump to after symbol!\n"
 697                                   "size: %zx, jump target: %" PRIx64,
 698                                   size, dl->ops.target);
 699                         continue;
 700                 }
 701
 702                 dlt = browser->offsets[dl->ops.target];
 703                 /*
 704                  * FIXME: Oops, no jump target? Buggy disassembler? Or do we
 705                  * have to adjust to the previous offset?
 706                  */
 707                 if (dlt == NULL)
 708                         continue;
 709
 710                 bdlt = disasm_line__browser(dlt);
 711                 bdlt->jump_target = true;
 712         }
 713
 714 }
 715
 716 int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
 717                          void(*timer)(void *arg), void *arg,
 718                          int delay_secs)
 719 {
 720         struct disasm_line *pos, *n;
 721         struct annotation *notes;
 722         const size_t size = symbol__size(sym);
 723         struct map_symbol ms = {
 724                 .map = map,
 725                 .sym = sym,
 726         };
 727         struct annotate_browser browser = {
 728                 .b = {
 729                         .refresh = annotate_browser__refresh,
 730                         .seek    = ui_browser__list_head_seek,
 731                         .write   = annotate_browser__write,
 732                         .filter  = disasm_line__filter,
 733                         .priv    = &ms,
 734                         .use_navkeypressed = true,
 735                 },
 736                 .use_offset = true,
 737         };
 738         int ret = -1;
 739
 740         if (sym == NULL)
 741                 return -1;
 742
 743         if (map->dso->annotate_warned)
 744                 return -1;
 745
 746         browser.offsets = zalloc(size * sizeof(struct disasm_line *));
 747         if (browser.offsets == NULL) {
 748                 ui__error("Not enough memory!");
 749                 return -1;
 750         }
 751
 752         if (symbol__annotate(sym, map, sizeof(struct browser_disasm_line)) < 0) {
 753                 ui__error("%s", ui_helpline__last_msg);
 754                 goto out_free_offsets;
 755         }
 756
 757         ui_helpline__push("Press <- or ESC to exit");
 758
 759         notes = symbol__annotation(sym);
 760         browser.start = map__rip_2objdump(map, sym->start);
 761
 762         list_for_each_entry(pos, &notes->src->source, node) {
 763                 struct browser_disasm_line *bpos;
 764                 size_t line_len = strlen(pos->line);
 765
 766                 if (browser.b.width < line_len)
 767                         browser.b.width = line_len;
 768                 bpos = disasm_line__browser(pos);
 769                 bpos->idx = browser.nr_entries++;
 770                 if (pos->offset != -1) {
 771                         bpos->idx_asm = browser.nr_asm_entries++;
 772                         /*
 773                          * FIXME: short term bandaid to cope with assembly
 774                          * routines that comes with labels in the same column
 775                          * as the address in objdump, sigh.
 776                          *
 777                          * E.g. copy_user_generic_unrolled
 778                          */
 779                         if (pos->offset < (s64)size)
 780                                 browser.offsets[pos->offset] = pos;
 781                 } else
 782                         bpos->idx_asm = -1;
 783         }
 784
 785         annotate_browser__mark_jump_targets(&browser, size);
 786
 787         browser.offset_width = hex_width(size);
 788         browser.b.nr_entries = browser.nr_entries;
 789         browser.b.entries = &notes->src->source,
 790         browser.b.width += 18; /* Percentage */
 791         ret = annotate_browser__run(&browser, evidx, timer, arg, delay_secs);
 792         list_for_each_entry_safe(pos, n, &notes->src->source, node) {
 793                 list_del(&pos->node);
 794                 disasm_line__free(pos);
 795         }
 796
 797 out_free_offsets:
 798         free(browser.offsets);
 799         return ret;
 800 }