tools/perf/util/annotate.c

   1 /*
   2  * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
   3  *
   4  * Parts came from builtin-annotate.c, see those files for further
   5  * copyright notes.
   6  *
   7  * Released under the GPL v2. (and only v2, not any later version)
   8  */
   9
  10 #include "util.h"
  11 #include "ui/ui.h"
  12 #include "sort.h"
  13 #include "build-id.h"
  14 #include "color.h"
  15 #include "cache.h"
  16 #include "symbol.h"
  17 #include "debug.h"
  18 #include "annotate.h"
  19 #include "evsel.h"
  20 #include <pthread.h>
  21 #include <linux/bitops.h>
  22
  23 const char      *disassembler_style;
  24 const char      *objdump_path;
  25
  26 static struct ins *ins__find(const char *name);
  27 static int disasm_line__parse(char *line, char **namep, char **rawp);
  28
  29 static void ins__delete(struct ins_operands *ops)
  30 {
  31         zfree(&ops->source.raw);
  32         zfree(&ops->source.name);
  33         zfree(&ops->target.raw);
  34         zfree(&ops->target.name);
  35 }
  36
  37 static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size,
  38                               struct ins_operands *ops)
  39 {
  40         return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->raw);
  41 }
  42
  43 int ins__scnprintf(struct ins *ins, char *bf, size_t size,
  44                   struct ins_operands *ops)
  45 {
  46         if (ins->ops->scnprintf)
  47                 return ins->ops->scnprintf(ins, bf, size, ops);
  48
  49         return ins__raw_scnprintf(ins, bf, size, ops);
  50 }
  51
  52 static int call__parse(struct ins_operands *ops)
  53 {
  54         char *endptr, *tok, *name;
  55
  56         ops->target.addr = strtoull(ops->raw, &endptr, 16);
  57
  58         name = strchr(endptr, '<');
  59         if (name == NULL)
  60                 goto indirect_call;
  61
  62         name++;
  63
  64         tok = strchr(name, '>');
  65         if (tok == NULL)
  66                 return -1;
  67
  68         *tok = '\0';
  69         ops->target.name = strdup(name);
  70         *tok = '>';
  71
  72         return ops->target.name == NULL ? -1 : 0;
  73
  74 indirect_call:
  75         tok = strchr(endptr, '(');
  76         if (tok != NULL) {
  77                 ops->target.addr = 0;
  78                 return 0;
  79         }
  80
  81         tok = strchr(endptr, '*');
  82         if (tok == NULL)
  83                 return -1;
  84
  85         ops->target.addr = strtoull(tok + 1, NULL, 16);
  86         return 0;
  87 }
  88
  89 static int call__scnprintf(struct ins *ins, char *bf, size_t size,
  90                            struct ins_operands *ops)
  91 {
  92         if (ops->target.name)
  93                 return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->target.name);
  94
  95         if (ops->target.addr == 0)
  96                 return ins__raw_scnprintf(ins, bf, size, ops);
  97
  98         return scnprintf(bf, size, "%-6.6s *%" PRIx64, ins->name, ops->target.addr);
  99 }
 100
 101 static struct ins_ops call_ops = {
 102         .parse     = call__parse,
 103         .scnprintf = call__scnprintf,
 104 };
 105
 106 bool ins__is_call(const struct ins *ins)
 107 {
 108         return ins->ops == &call_ops;
 109 }
 110
 111 static int jump__parse(struct ins_operands *ops)
 112 {
 113         const char *s = strchr(ops->raw, '+');
 114
 115         ops->target.addr = strtoull(ops->raw, NULL, 16);
 116
 117         if (s++ != NULL)
 118                 ops->target.offset = strtoull(s, NULL, 16);
 119         else
 120                 ops->target.offset = UINT64_MAX;
 121
 122         return 0;
 123 }
 124
 125 static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
 126                            struct ins_operands *ops)
 127 {
 128         return scnprintf(bf, size, "%-6.6s %" PRIx64, ins->name, ops->target.offset);
 129 }
 130
 131 static struct ins_ops jump_ops = {
 132         .parse     = jump__parse,
 133         .scnprintf = jump__scnprintf,
 134 };
 135
 136 bool ins__is_jump(const struct ins *ins)
 137 {
 138         return ins->ops == &jump_ops;
 139 }
 140
 141 static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep)
 142 {
 143         char *endptr, *name, *t;
 144
 145         if (strstr(raw, "(%rip)") == NULL)
 146                 return 0;
 147
 148         *addrp = strtoull(comment, &endptr, 16);
 149         name = strchr(endptr, '<');
 150         if (name == NULL)
 151                 return -1;
 152
 153         name++;
 154
 155         t = strchr(name, '>');
 156         if (t == NULL)
 157                 return 0;
 158
 159         *t = '\0';
 160         *namep = strdup(name);
 161         *t = '>';
 162
 163         return 0;
 164 }
 165
 166 static int lock__parse(struct ins_operands *ops)
 167 {
 168         char *name;
 169
 170         ops->locked.ops = zalloc(sizeof(*ops->locked.ops));
 171         if (ops->locked.ops == NULL)
 172                 return 0;
 173
 174         if (disasm_line__parse(ops->raw, &name, &ops->locked.ops->raw) < 0)
 175                 goto out_free_ops;
 176
 177         ops->locked.ins = ins__find(name);
 178         if (ops->locked.ins == NULL)
 179                 goto out_free_ops;
 180
 181         if (!ops->locked.ins->ops)
 182                 return 0;
 183
 184         if (ops->locked.ins->ops->parse)
 185                 ops->locked.ins->ops->parse(ops->locked.ops);
 186
 187         return 0;
 188
 189 out_free_ops:
 190         zfree(&ops->locked.ops);
 191         return 0;
 192 }
 193
 194 static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
 195                            struct ins_operands *ops)
 196 {
 197         int printed;
 198
 199         if (ops->locked.ins == NULL)
 200                 return ins__raw_scnprintf(ins, bf, size, ops);
 201
 202         printed = scnprintf(bf, size, "%-6.6s ", ins->name);
 203         return printed + ins__scnprintf(ops->locked.ins, bf + printed,
 204                                         size - printed, ops->locked.ops);
 205 }
 206
 207 static void lock__delete(struct ins_operands *ops)
 208 {
 209         zfree(&ops->locked.ops);
 210         zfree(&ops->target.raw);
 211         zfree(&ops->target.name);
 212 }
 213
 214 static struct ins_ops lock_ops = {
 215         .free      = lock__delete,
 216         .parse     = lock__parse,
 217         .scnprintf = lock__scnprintf,
 218 };
 219
 220 static int mov__parse(struct ins_operands *ops)
 221 {
 222         char *s = strchr(ops->raw, ','), *target, *comment, prev;
 223
 224         if (s == NULL)
 225                 return -1;
 226
 227         *s = '\0';
 228         ops->source.raw = strdup(ops->raw);
 229         *s = ',';
 230
 231         if (ops->source.raw == NULL)
 232                 return -1;
 233
 234         target = ++s;
 235         comment = strchr(s, '#');
 236
 237         if (comment != NULL)
 238                 s = comment - 1;
 239         else
 240                 s = strchr(s, '\0') - 1;
 241
 242         while (s > target && isspace(s[0]))
 243                 --s;
 244         s++;
 245         prev = *s;
 246         *s = '\0';
 247
 248         ops->target.raw = strdup(target);
 249         *s = prev;
 250
 251         if (ops->target.raw == NULL)
 252                 goto out_free_source;
 253
 254         if (comment == NULL)
 255                 return 0;
 256
 257         while (comment[0] != '\0' && isspace(comment[0]))
 258                 ++comment;
 259
 260         comment__symbol(ops->source.raw, comment, &ops->source.addr, &ops->source.name);
 261         comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);
 262
 263         return 0;
 264
 265 out_free_source:
 266         zfree(&ops->source.raw);
 267         return -1;
 268 }
 269
 270 static int mov__scnprintf(struct ins *ins, char *bf, size_t size,
 271                            struct ins_operands *ops)
 272 {
 273         return scnprintf(bf, size, "%-6.6s %s,%s", ins->name,
 274                          ops->source.name ?: ops->source.raw,
 275                          ops->target.name ?: ops->target.raw);
 276 }
 277
 278 static struct ins_ops mov_ops = {
 279         .parse     = mov__parse,
 280         .scnprintf = mov__scnprintf,
 281 };
 282
 283 static int dec__parse(struct ins_operands *ops)
 284 {
 285         char *target, *comment, *s, prev;
 286
 287         target = s = ops->raw;
 288
 289         while (s[0] != '\0' && !isspace(s[0]))
 290                 ++s;
 291         prev = *s;
 292         *s = '\0';
 293
 294         ops->target.raw = strdup(target);
 295         *s = prev;
 296
 297         if (ops->target.raw == NULL)
 298                 return -1;
 299
 300         comment = strchr(s, '#');
 301         if (comment == NULL)
 302                 return 0;
 303
 304         while (comment[0] != '\0' && isspace(comment[0]))
 305                 ++comment;
 306
 307         comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);
 308
 309         return 0;
 310 }
 311
 312 static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
 313                            struct ins_operands *ops)
 314 {
 315         return scnprintf(bf, size, "%-6.6s %s", ins->name,
 316                          ops->target.name ?: ops->target.raw);
 317 }
 318
 319 static struct ins_ops dec_ops = {
 320         .parse     = dec__parse,
 321         .scnprintf = dec__scnprintf,
 322 };
 323
 324 static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size,
 325                           struct ins_operands *ops __maybe_unused)
 326 {
 327         return scnprintf(bf, size, "%-6.6s", "nop");
 328 }
 329
 330 static struct ins_ops nop_ops = {
 331         .scnprintf = nop__scnprintf,
 332 };
 333
 334 /*
 335  * Must be sorted by name!
 336  */
 337 static struct ins instructions[] = {
 338         { .name = "add",   .ops  = &mov_ops, },
 339         { .name = "addl",  .ops  = &mov_ops, },
 340         { .name = "addq",  .ops  = &mov_ops, },
 341         { .name = "addw",  .ops  = &mov_ops, },
 342         { .name = "and",   .ops  = &mov_ops, },
 343         { .name = "bts",   .ops  = &mov_ops, },
 344         { .name = "call",  .ops  = &call_ops, },
 345         { .name = "callq", .ops  = &call_ops, },
 346         { .name = "cmp",   .ops  = &mov_ops, },
 347         { .name = "cmpb",  .ops  = &mov_ops, },
 348         { .name = "cmpl",  .ops  = &mov_ops, },
 349         { .name = "cmpq",  .ops  = &mov_ops, },
 350         { .name = "cmpw",  .ops  = &mov_ops, },
 351         { .name = "cmpxch", .ops  = &mov_ops, },
 352         { .name = "dec",   .ops  = &dec_ops, },
 353         { .name = "decl",  .ops  = &dec_ops, },
 354         { .name = "imul",  .ops  = &mov_ops, },
 355         { .name = "inc",   .ops  = &dec_ops, },
 356         { .name = "incl",  .ops  = &dec_ops, },
 357         { .name = "ja",    .ops  = &jump_ops, },
 358         { .name = "jae",   .ops  = &jump_ops, },
 359         { .name = "jb",    .ops  = &jump_ops, },
 360         { .name = "jbe",   .ops  = &jump_ops, },
 361         { .name = "jc",    .ops  = &jump_ops, },
 362         { .name = "jcxz",  .ops  = &jump_ops, },
 363         { .name = "je",    .ops  = &jump_ops, },
 364         { .name = "jecxz", .ops  = &jump_ops, },
 365         { .name = "jg",    .ops  = &jump_ops, },
 366         { .name = "jge",   .ops  = &jump_ops, },
 367         { .name = "jl",    .ops  = &jump_ops, },
 368         { .name = "jle",   .ops  = &jump_ops, },
 369         { .name = "jmp",   .ops  = &jump_ops, },
 370         { .name = "jmpq",  .ops  = &jump_ops, },
 371         { .name = "jna",   .ops  = &jump_ops, },
 372         { .name = "jnae",  .ops  = &jump_ops, },
 373         { .name = "jnb",   .ops  = &jump_ops, },
 374         { .name = "jnbe",  .ops  = &jump_ops, },
 375         { .name = "jnc",   .ops  = &jump_ops, },
 376         { .name = "jne",   .ops  = &jump_ops, },
 377         { .name = "jng",   .ops  = &jump_ops, },
 378         { .name = "jnge",  .ops  = &jump_ops, },
 379         { .name = "jnl",   .ops  = &jump_ops, },
 380         { .name = "jnle",  .ops  = &jump_ops, },
 381         { .name = "jno",   .ops  = &jump_ops, },
 382         { .name = "jnp",   .ops  = &jump_ops, },
 383         { .name = "jns",   .ops  = &jump_ops, },
 384         { .name = "jnz",   .ops  = &jump_ops, },
 385         { .name = "jo",    .ops  = &jump_ops, },
 386         { .name = "jp",    .ops  = &jump_ops, },
 387         { .name = "jpe",   .ops  = &jump_ops, },
 388         { .name = "jpo",   .ops  = &jump_ops, },
 389         { .name = "jrcxz", .ops  = &jump_ops, },
 390         { .name = "js",    .ops  = &jump_ops, },
 391         { .name = "jz",    .ops  = &jump_ops, },
 392         { .name = "lea",   .ops  = &mov_ops, },
 393         { .name = "lock",  .ops  = &lock_ops, },
 394         { .name = "mov",   .ops  = &mov_ops, },
 395         { .name = "movb",  .ops  = &mov_ops, },
 396         { .name = "movdqa",.ops  = &mov_ops, },
 397         { .name = "movl",  .ops  = &mov_ops, },
 398         { .name = "movq",  .ops  = &mov_ops, },
 399         { .name = "movslq", .ops  = &mov_ops, },
 400         { .name = "movzbl", .ops  = &mov_ops, },
 401         { .name = "movzwl", .ops  = &mov_ops, },
 402         { .name = "nop",   .ops  = &nop_ops, },
 403         { .name = "nopl",  .ops  = &nop_ops, },
 404         { .name = "nopw",  .ops  = &nop_ops, },
 405         { .name = "or",    .ops  = &mov_ops, },
 406         { .name = "orl",   .ops  = &mov_ops, },
 407         { .name = "test",  .ops  = &mov_ops, },
 408         { .name = "testb", .ops  = &mov_ops, },
 409         { .name = "testl", .ops  = &mov_ops, },
 410         { .name = "xadd",  .ops  = &mov_ops, },
 411         { .name = "xbeginl", .ops  = &jump_ops, },
 412         { .name = "xbeginq", .ops  = &jump_ops, },
 413 };
 414
 415 static int ins__cmp(const void *name, const void *insp)
 416 {
 417         const struct ins *ins = insp;
 418
 419         return strcmp(name, ins->name);
 420 }
 421
 422 static struct ins *ins__find(const char *name)
 423 {
 424         const int nmemb = ARRAY_SIZE(instructions);
 425
 426         return bsearch(name, instructions, nmemb, sizeof(struct ins), ins__cmp);
 427 }
 428
 429 int symbol__annotate_init(struct map *map __maybe_unused, struct symbol *sym)
 430 {
 431         struct annotation *notes = symbol__annotation(sym);
 432         pthread_mutex_init(&notes->lock, NULL);
 433         return 0;
 434 }
 435
 436 int symbol__alloc_hist(struct symbol *sym)
 437 {
 438         struct annotation *notes = symbol__annotation(sym);
 439         const size_t size = symbol__size(sym);
 440         size_t sizeof_sym_hist;
 441
 442         /* Check for overflow when calculating sizeof_sym_hist */
 443         if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(u64))
 444                 return -1;
 445
 446         sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(u64));
 447
 448         /* Check for overflow in zalloc argument */
 449         if (sizeof_sym_hist > (SIZE_MAX - sizeof(*notes->src))
 450                                 / symbol_conf.nr_events)
 451                 return -1;
 452
 453         notes->src = zalloc(sizeof(*notes->src) + symbol_conf.nr_events * sizeof_sym_hist);
 454         if (notes->src == NULL)
 455                 return -1;
 456         notes->src->sizeof_sym_hist = sizeof_sym_hist;
 457         notes->src->nr_histograms   = symbol_conf.nr_events;
 458         INIT_LIST_HEAD(&notes->src->source);
 459         return 0;
 460 }
 461
 462 void symbol__annotate_zero_histograms(struct symbol *sym)
 463 {
 464         struct annotation *notes = symbol__annotation(sym);
 465
 466         pthread_mutex_lock(&notes->lock);
 467         if (notes->src != NULL)
 468                 memset(notes->src->histograms, 0,
 469                        notes->src->nr_histograms * notes->src->sizeof_sym_hist);
 470         pthread_mutex_unlock(&notes->lock);
 471 }
 472
 473 static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
 474                                       struct annotation *notes, int evidx, u64 addr)
 475 {
 476         unsigned offset;
 477         struct sym_hist *h;
 478
 479         pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr));
 480
 481         if (addr < sym->start || addr >= sym->end)
 482                 return -ERANGE;
 483
 484         offset = addr - sym->start;
 485         h = annotation__histogram(notes, evidx);
 486         h->sum++;
 487         h->addr[offset]++;
 488
 489         pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64
 490                   ", evidx=%d] => %" PRIu64 "\n", sym->start, sym->name,
 491                   addr, addr - sym->start, evidx, h->addr[offset]);
 492         return 0;
 493 }
 494
 495 static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
 496                                     int evidx, u64 addr)
 497 {
 498         struct annotation *notes;
 499
 500         if (sym == NULL)
 501                 return 0;
 502
 503         notes = symbol__annotation(sym);
 504         if (notes->src == NULL) {
 505                 if (symbol__alloc_hist(sym) < 0)
 506                         return -ENOMEM;
 507         }
 508
 509         return __symbol__inc_addr_samples(sym, map, notes, evidx, addr);
 510 }
 511
 512 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, int evidx)
 513 {
 514         return symbol__inc_addr_samples(ams->sym, ams->map, evidx, ams->al_addr);
 515 }
 516
 517 int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 ip)
 518 {
 519         return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evidx, ip);
 520 }
 521
 522 static void disasm_line__init_ins(struct disasm_line *dl)
 523 {
 524         dl->ins = ins__find(dl->name);
 525
 526         if (dl->ins == NULL)
 527                 return;
 528
 529         if (!dl->ins->ops)
 530                 return;
 531
 532         if (dl->ins->ops->parse)
 533                 dl->ins->ops->parse(&dl->ops);
 534 }
 535
 536 static int disasm_line__parse(char *line, char **namep, char **rawp)
 537 {
 538         char *name = line, tmp;
 539
 540         while (isspace(name[0]))
 541                 ++name;
 542
 543         if (name[0] == '\0')
 544                 return -1;
 545
 546         *rawp = name + 1;
 547
 548         while ((*rawp)[0] != '\0' && !isspace((*rawp)[0]))
 549                 ++*rawp;
 550
 551         tmp = (*rawp)[0];
 552         (*rawp)[0] = '\0';
 553         *namep = strdup(name);
 554
 555         if (*namep == NULL)
 556                 goto out_free_name;
 557
 558         (*rawp)[0] = tmp;
 559
 560         if ((*rawp)[0] != '\0') {
 561                 (*rawp)++;
 562                 while (isspace((*rawp)[0]))
 563                         ++(*rawp);
 564         }
 565
 566         return 0;
 567
 568 out_free_name:
 569         zfree(namep);
 570         return -1;
 571 }
 572
 573 static struct disasm_line *disasm_line__new(s64 offset, char *line, size_t privsize)
 574 {
 575         struct disasm_line *dl = zalloc(sizeof(*dl) + privsize);
 576
 577         if (dl != NULL) {
 578                 dl->offset = offset;
 579                 dl->line = strdup(line);
 580                 if (dl->line == NULL)
 581                         goto out_delete;
 582
 583                 if (offset != -1) {
 584                         if (disasm_line__parse(dl->line, &dl->name, &dl->ops.raw) < 0)
 585                                 goto out_free_line;
 586
 587                         disasm_line__init_ins(dl);
 588                 }
 589         }
 590
 591         return dl;
 592
 593 out_free_line:
 594         zfree(&dl->line);
 595 out_delete:
 596         free(dl);
 597         return NULL;
 598 }
 599
 600 void disasm_line__free(struct disasm_line *dl)
 601 {
 602         zfree(&dl->line);
 603         zfree(&dl->name);
 604         if (dl->ins && dl->ins->ops->free)
 605                 dl->ins->ops->free(&dl->ops);
 606         else
 607                 ins__delete(&dl->ops);
 608         free(dl);
 609 }
 610
 611 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw)
 612 {
 613         if (raw || !dl->ins)
 614                 return scnprintf(bf, size, "%-6.6s %s", dl->name, dl->ops.raw);
 615
 616         return ins__scnprintf(dl->ins, bf, size, &dl->ops);
 617 }
 618
 619 static void disasm__add(struct list_head *head, struct disasm_line *line)
 620 {
 621         list_add_tail(&line->node, head);
 622 }
 623
 624 struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disasm_line *pos)
 625 {
 626         list_for_each_entry_continue(pos, head, node)
 627                 if (pos->offset >= 0)
 628                         return pos;
 629
 630         return NULL;
 631 }
 632
 633 double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset,
 634                             s64 end, const char **path)
 635 {
 636         struct source_line *src_line = notes->src->lines;
 637         double percent = 0.0;
 638
 639         if (src_line) {
 640                 size_t sizeof_src_line = sizeof(*src_line) +
 641                                 sizeof(src_line->p) * (src_line->nr_pcnt - 1);
 642
 643                 while (offset < end) {
 644                         src_line = (void *)notes->src->lines +
 645                                         (sizeof_src_line * offset);
 646
 647                         if (*path == NULL)
 648                                 *path = src_line->path;
 649
 650                         percent += src_line->p[evidx].percent;
 651                         offset++;
 652                 }
 653         } else {
 654                 struct sym_hist *h = annotation__histogram(notes, evidx);
 655                 unsigned int hits = 0;
 656
 657                 while (offset < end)
 658                         hits += h->addr[offset++];
 659
 660                 if (h->sum)
 661                         percent = 100.0 * hits / h->sum;
 662         }
 663
 664         return percent;
 665 }
 666
 667 static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 start,
 668                       struct perf_evsel *evsel, u64 len, int min_pcnt, int printed,
 669                       int max_lines, struct disasm_line *queue)
 670 {
 671         static const char *prev_line;
 672         static const char *prev_color;
 673
 674         if (dl->offset != -1) {
 675                 const char *path = NULL;
 676                 double percent, max_percent = 0.0;
 677                 double *ppercents = &percent;
 678                 int i, nr_percent = 1;
 679                 const char *color;
 680                 struct annotation *notes = symbol__annotation(sym);
 681                 s64 offset = dl->offset;
 682                 const u64 addr = start + offset;
 683                 struct disasm_line *next;
 684
 685                 next = disasm__get_next_ip_line(&notes->src->source, dl);
 686
 687                 if (perf_evsel__is_group_event(evsel)) {
 688                         nr_percent = evsel->nr_members;
 689                         ppercents = calloc(nr_percent, sizeof(double));
 690                         if (ppercents == NULL)
 691                                 return -1;
 692                 }
 693
 694                 for (i = 0; i < nr_percent; i++) {
 695                         percent = disasm__calc_percent(notes,
 696                                         notes->src->lines ? i : evsel->idx + i,
 697                                         offset,
 698                                         next ? next->offset : (s64) len,
 699                                         &path);
 700
 701                         ppercents[i] = percent;
 702                         if (percent > max_percent)
 703                                 max_percent = percent;
 704                 }
 705
 706                 if (max_percent < min_pcnt)
 707                         return -1;
 708
 709                 if (max_lines && printed >= max_lines)
 710                         return 1;
 711
 712                 if (queue != NULL) {
 713                         list_for_each_entry_from(queue, &notes->src->source, node) {
 714                                 if (queue == dl)
 715                                         break;
 716                                 disasm_line__print(queue, sym, start, evsel, len,
 717                                                     0, 0, 1, NULL);
 718                         }
 719                 }
 720
 721                 color = get_percent_color(max_percent);
 722
 723                 /*
 724                  * Also color the filename and line if needed, with
 725                  * the same color than the percentage. Don't print it
 726                  * twice for close colored addr with the same filename:line
 727                  */
 728                 if (path) {
 729                         if (!prev_line || strcmp(prev_line, path)
 730                                        || color != prev_color) {
 731                                 color_fprintf(stdout, color, " %s", path);
 732                                 prev_line = path;
 733                                 prev_color = color;
 734                         }
 735                 }
 736
 737                 for (i = 0; i < nr_percent; i++) {
 738                         percent = ppercents[i];
 739                         color = get_percent_color(percent);
 740                         color_fprintf(stdout, color, " %7.2f", percent);
 741                 }
 742
 743                 printf(" :      ");
 744                 color_fprintf(stdout, PERF_COLOR_MAGENTA, "  %" PRIx64 ":", addr);
 745                 color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", dl->line);
 746
 747                 if (ppercents != &percent)
 748                         free(ppercents);
 749
 750         } else if (max_lines && printed >= max_lines)
 751                 return 1;
 752         else {
 753                 int width = 8;
 754
 755                 if (queue)
 756                         return -1;
 757
 758                 if (perf_evsel__is_group_event(evsel))
 759                         width *= evsel->nr_members;
 760
 761                 if (!*dl->line)
 762                         printf(" %*s:\n", width, " ");
 763                 else
 764                         printf(" %*s:   %s\n", width, " ", dl->line);
 765         }
 766
 767         return 0;
 768 }
 769
 770 /*
 771  * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw)
 772  * which looks like following
 773  *
 774  *  0000000000415500 <_init>:
 775  *    415500:       sub    $0x8,%rsp
 776  *    415504:       mov    0x2f5ad5(%rip),%rax        # 70afe0 <_DYNAMIC+0x2f8>
 777  *    41550b:       test   %rax,%rax
 778  *    41550e:       je     415515 <_init+0x15>
 779  *    415510:       callq  416e70 <__gmon_start__@plt>
 780  *    415515:       add    $0x8,%rsp
 781  *    415519:       retq
 782  *
 783  * it will be parsed and saved into struct disasm_line as
 784  *  <offset>       <name>  <ops.raw>
 785  *
 786  * The offset will be a relative offset from the start of the symbol and -1
 787  * means that it's not a disassembly line so should be treated differently.
 788  * The ops.raw part will be parsed further according to type of the instruction.
 789  */
 790 static int symbol__parse_objdump_line(struct symbol *sym, struct map *map,
 791                                       FILE *file, size_t privsize)
 792 {
 793         struct annotation *notes = symbol__annotation(sym);
 794         struct disasm_line *dl;
 795         char *line = NULL, *parsed_line, *tmp, *tmp2, *c;
 796         size_t line_len;
 797         s64 line_ip, offset = -1;
 798
 799         if (getline(&line, &line_len, file) < 0)
 800                 return -1;
 801
 802         if (!line)
 803                 return -1;
 804
 805         while (line_len != 0 && isspace(line[line_len - 1]))
 806                 line[--line_len] = '\0';
 807
 808         c = strchr(line, '\n');
 809         if (c)
 810                 *c = 0;
 811
 812         line_ip = -1;
 813         parsed_line = line;
 814
 815         /*
 816          * Strip leading spaces:
 817          */
 818         tmp = line;
 819         while (*tmp) {
 820                 if (*tmp != ' ')
 821                         break;
 822                 tmp++;
 823         }
 824
 825         if (*tmp) {
 826                 /*
 827                  * Parse hexa addresses followed by ':'
 828                  */
 829                 line_ip = strtoull(tmp, &tmp2, 16);
 830                 if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0')
 831                         line_ip = -1;
 832         }
 833
 834         if (line_ip != -1) {
 835                 u64 start = map__rip_2objdump(map, sym->start),
 836                     end = map__rip_2objdump(map, sym->end);
 837
 838                 offset = line_ip - start;
 839                 if ((u64)line_ip < start || (u64)line_ip >= end)
 840                         offset = -1;
 841                 else
 842                         parsed_line = tmp2 + 1;
 843         }
 844
 845         dl = disasm_line__new(offset, parsed_line, privsize);
 846         free(line);
 847
 848         if (dl == NULL)
 849                 return -1;
 850
 851         if (dl->ops.target.offset == UINT64_MAX)
 852                 dl->ops.target.offset = dl->ops.target.addr -
 853                                         map__rip_2objdump(map, sym->start);
 854
 855         /* kcore has no symbols, so add the call target name */
 856         if (dl->ins && ins__is_call(dl->ins) && !dl->ops.target.name) {
 857                 struct addr_map_symbol target = {
 858                         .map = map,
 859                         .addr = dl->ops.target.addr,
 860                 };
 861
 862                 if (!map_groups__find_ams(&target, NULL) &&
 863                     target.sym->start == target.al_addr)
 864                         dl->ops.target.name = strdup(target.sym->name);
 865         }
 866
 867         disasm__add(&notes->src->source, dl);
 868
 869         return 0;
 870 }
 871
 872 static void delete_last_nop(struct symbol *sym)
 873 {
 874         struct annotation *notes = symbol__annotation(sym);
 875         struct list_head *list = &notes->src->source;
 876         struct disasm_line *dl;
 877
 878         while (!list_empty(list)) {
 879                 dl = list_entry(list->prev, struct disasm_line, node);
 880
 881                 if (dl->ins && dl->ins->ops) {
 882                         if (dl->ins->ops != &nop_ops)
 883                                 return;
 884                 } else {
 885                         if (!strstr(dl->line, " nop ") &&
 886                             !strstr(dl->line, " nopl ") &&
 887                             !strstr(dl->line, " nopw "))
 888                                 return;
 889                 }
 890
 891                 list_del(&dl->node);
 892                 disasm_line__free(dl);
 893         }
 894 }
 895
 896 int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize)
 897 {
 898         struct dso *dso = map->dso;
 899         char *filename = dso__build_id_filename(dso, NULL, 0);
 900         bool free_filename = true;
 901         char command[PATH_MAX * 2];
 902         FILE *file;
 903         int err = 0;
 904         char symfs_filename[PATH_MAX];
 905         struct kcore_extract kce;
 906         bool delete_extract = false;
 907
 908         if (filename)
 909                 symbol__join_symfs(symfs_filename, filename);
 910
 911         if (filename == NULL) {
 912                 if (dso->has_build_id) {
 913                         pr_err("Can't annotate %s: not enough memory\n",
 914                                sym->name);
 915                         return -ENOMEM;
 916                 }
 917                 goto fallback;
 918         } else if (readlink(symfs_filename, command, sizeof(command)) < 0 ||
 919                    strstr(command, "[kernel.kallsyms]") ||
 920                    access(symfs_filename, R_OK)) {
 921                 free(filename);
 922 fallback:
 923                 /*
 924                  * If we don't have build-ids or the build-id file isn't in the
 925                  * cache, or is just a kallsyms file, well, lets hope that this
 926                  * DSO is the same as when 'perf record' ran.
 927                  */
 928                 filename = (char *)dso->long_name;
 929                 symbol__join_symfs(symfs_filename, filename);
 930                 free_filename = false;
 931         }
 932
 933         if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
 934             !dso__is_kcore(dso)) {
 935                 char bf[BUILD_ID_SIZE * 2 + 16] = " with build id ";
 936                 char *build_id_msg = NULL;
 937
 938                 if (dso->annotate_warned)
 939                         goto out_free_filename;
 940
 941                 if (dso->has_build_id) {
 942                         build_id__sprintf(dso->build_id,
 943                                           sizeof(dso->build_id), bf + 15);
 944                         build_id_msg = bf;
 945                 }
 946                 err = -ENOENT;
 947                 dso->annotate_warned = 1;
 948                 pr_err("Can't annotate %s:\n\n"
 949                        "No vmlinux file%s\nwas found in the path.\n\n"
 950                        "Please use:\n\n"
 951                        "  perf buildid-cache -vu vmlinux\n\n"
 952                        "or:\n\n"
 953                        "  --vmlinux vmlinux\n",
 954                        sym->name, build_id_msg ?: "");
 955                 goto out_free_filename;
 956         }
 957
 958         pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
 959                  filename, sym->name, map->unmap_ip(map, sym->start),
 960                  map->unmap_ip(map, sym->end));
 961
 962         pr_debug("annotating [%p] %30s : [%p] %30s\n",
 963                  dso, dso->long_name, sym, sym->name);
 964
 965         if (dso__is_kcore(dso)) {
 966                 kce.kcore_filename = symfs_filename;
 967                 kce.addr = map__rip_2objdump(map, sym->start);
 968                 kce.offs = sym->start;
 969                 kce.len = sym->end - sym->start;
 970                 if (!kcore_extract__create(&kce)) {
 971                         delete_extract = true;
 972                         strlcpy(symfs_filename, kce.extract_filename,
 973                                 sizeof(symfs_filename));
 974                         if (free_filename) {
 975                                 free(filename);
 976                                 free_filename = false;
 977                         }
 978                         filename = symfs_filename;
 979                 }
 980         }
 981
 982         snprintf(command, sizeof(command),
 983                  "%s %s%s --start-address=0x%016" PRIx64
 984                  " --stop-address=0x%016" PRIx64
 985                  " -d %s %s -C %s 2>/dev/null|grep -v %s|expand",
 986                  objdump_path ? objdump_path : "objdump",
 987                  disassembler_style ? "-M " : "",
 988                  disassembler_style ? disassembler_style : "",
 989                  map__rip_2objdump(map, sym->start),
 990                  map__rip_2objdump(map, sym->end),
 991                  symbol_conf.annotate_asm_raw ? "" : "--no-show-raw",
 992                  symbol_conf.annotate_src ? "-S" : "",
 993                  symfs_filename, filename);
 994
 995         pr_debug("Executing: %s\n", command);
 996
 997         file = popen(command, "r");
 998         if (!file)
 999                 goto out_free_filename;
1000
1001         while (!feof(file))
1002                 if (symbol__parse_objdump_line(sym, map, file, privsize) < 0)
1003                         break;
1004
1005         /*
1006          * kallsyms does not have symbol sizes so there may a nop at the end.
1007          * Remove it.
1008          */
1009         if (dso__is_kcore(dso))
1010                 delete_last_nop(sym);
1011
1012         pclose(file);
1013 out_free_filename:
1014         if (delete_extract)
1015                 kcore_extract__delete(&kce);
1016         if (free_filename)
1017                 free(filename);
1018         return err;
1019 }
1020
1021 static void insert_source_line(struct rb_root *root, struct source_line *src_line)
1022 {
1023         struct source_line *iter;
1024         struct rb_node **p = &root->rb_node;
1025         struct rb_node *parent = NULL;
1026         int i, ret;
1027
1028         while (*p != NULL) {
1029                 parent = *p;
1030                 iter = rb_entry(parent, struct source_line, node);
1031
1032                 ret = strcmp(iter->path, src_line->path);
1033                 if (ret == 0) {
1034                         for (i = 0; i < src_line->nr_pcnt; i++)
1035                                 iter->p[i].percent_sum += src_line->p[i].percent;
1036                         return;
1037                 }
1038
1039                 if (ret < 0)
1040                         p = &(*p)->rb_left;
1041                 else
1042                         p = &(*p)->rb_right;
1043         }
1044
1045         for (i = 0; i < src_line->nr_pcnt; i++)
1046                 src_line->p[i].percent_sum = src_line->p[i].percent;
1047
1048         rb_link_node(&src_line->node, parent, p);
1049         rb_insert_color(&src_line->node, root);
1050 }
1051
1052 static int cmp_source_line(struct source_line *a, struct source_line *b)
1053 {
1054         int i;
1055
1056         for (i = 0; i < a->nr_pcnt; i++) {
1057                 if (a->p[i].percent_sum == b->p[i].percent_sum)
1058                         continue;
1059                 return a->p[i].percent_sum > b->p[i].percent_sum;
1060         }
1061
1062         return 0;
1063 }
1064
1065 static void __resort_source_line(struct rb_root *root, struct source_line *src_line)
1066 {
1067         struct source_line *iter;
1068         struct rb_node **p = &root->rb_node;
1069         struct rb_node *parent = NULL;
1070
1071         while (*p != NULL) {
1072                 parent = *p;
1073                 iter = rb_entry(parent, struct source_line, node);
1074
1075                 if (cmp_source_line(src_line, iter))
1076                         p = &(*p)->rb_left;
1077                 else
1078                         p = &(*p)->rb_right;
1079         }
1080
1081         rb_link_node(&src_line->node, parent, p);
1082         rb_insert_color(&src_line->node, root);
1083 }
1084
1085 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
1086 {
1087         struct source_line *src_line;
1088         struct rb_node *node;
1089
1090         node = rb_first(src_root);
1091         while (node) {
1092                 struct rb_node *next;
1093
1094                 src_line = rb_entry(node, struct source_line, node);
1095                 next = rb_next(node);
1096                 rb_erase(node, src_root);
1097
1098                 __resort_source_line(dest_root, src_line);
1099                 node = next;
1100         }
1101 }
1102
1103 static void symbol__free_source_line(struct symbol *sym, int len)
1104 {
1105         struct annotation *notes = symbol__annotation(sym);
1106         struct source_line *src_line = notes->src->lines;
1107         size_t sizeof_src_line;
1108         int i;
1109
1110         sizeof_src_line = sizeof(*src_line) +
1111                           (sizeof(src_line->p) * (src_line->nr_pcnt - 1));
1112
1113         for (i = 0; i < len; i++) {
1114                 free_srcline(src_line->path);
1115                 src_line = (void *)src_line + sizeof_src_line;
1116         }
1117
1118         zfree(&notes->src->lines);
1119 }
1120
1121 /* Get the filename:line for the colored entries */
1122 static int symbol__get_source_line(struct symbol *sym, struct map *map,
1123                                    struct perf_evsel *evsel,
1124                                    struct rb_root *root, int len)
1125 {
1126         u64 start;
1127         int i, k;
1128         int evidx = evsel->idx;
1129         struct source_line *src_line;
1130         struct annotation *notes = symbol__annotation(sym);
1131         struct sym_hist *h = annotation__histogram(notes, evidx);
1132         struct rb_root tmp_root = RB_ROOT;
1133         int nr_pcnt = 1;
1134         u64 h_sum = h->sum;
1135         size_t sizeof_src_line = sizeof(struct source_line);
1136
1137         if (perf_evsel__is_group_event(evsel)) {
1138                 for (i = 1; i < evsel->nr_members; i++) {
1139                         h = annotation__histogram(notes, evidx + i);
1140                         h_sum += h->sum;
1141                 }
1142                 nr_pcnt = evsel->nr_members;
1143                 sizeof_src_line += (nr_pcnt - 1) * sizeof(src_line->p);
1144         }
1145
1146         if (!h_sum)
1147                 return 0;
1148
1149         src_line = notes->src->lines = calloc(len, sizeof_src_line);
1150         if (!notes->src->lines)
1151                 return -1;
1152
1153         start = map__rip_2objdump(map, sym->start);
1154
1155         for (i = 0; i < len; i++) {
1156                 u64 offset;
1157                 double percent_max = 0.0;
1158
1159                 src_line->nr_pcnt = nr_pcnt;
1160
1161                 for (k = 0; k < nr_pcnt; k++) {
1162                         h = annotation__histogram(notes, evidx + k);
1163                         src_line->p[k].percent = 100.0 * h->addr[i] / h->sum;
1164
1165                         if (src_line->p[k].percent > percent_max)
1166                                 percent_max = src_line->p[k].percent;
1167                 }
1168
1169                 if (percent_max <= 0.5)
1170                         goto next;
1171
1172                 offset = start + i;
1173                 src_line->path = get_srcline(map->dso, offset);
1174                 insert_source_line(&tmp_root, src_line);
1175
1176         next:
1177                 src_line = (void *)src_line + sizeof_src_line;
1178         }
1179
1180         resort_source_line(root, &tmp_root);
1181         return 0;
1182 }
1183
1184 static void print_summary(struct rb_root *root, const char *filename)
1185 {
1186         struct source_line *src_line;
1187         struct rb_node *node;
1188
1189         printf("\nSorted summary for file %s\n", filename);
1190         printf("----------------------------------------------\n\n");
1191
1192         if (RB_EMPTY_ROOT(root)) {
1193                 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
1194                 return;
1195         }
1196
1197         node = rb_first(root);
1198         while (node) {
1199                 double percent, percent_max = 0.0;
1200                 const char *color;
1201                 char *path;
1202                 int i;
1203
1204                 src_line = rb_entry(node, struct source_line, node);
1205                 for (i = 0; i < src_line->nr_pcnt; i++) {
1206                         percent = src_line->p[i].percent_sum;
1207                         color = get_percent_color(percent);
1208                         color_fprintf(stdout, color, " %7.2f", percent);
1209
1210                         if (percent > percent_max)
1211                                 percent_max = percent;
1212                 }
1213
1214                 path = src_line->path;
1215                 color = get_percent_color(percent_max);
1216                 color_fprintf(stdout, color, " %s\n", path);
1217
1218                 node = rb_next(node);
1219         }
1220 }
1221
1222 static void symbol__annotate_hits(struct symbol *sym, struct perf_evsel *evsel)
1223 {
1224         struct annotation *notes = symbol__annotation(sym);
1225         struct sym_hist *h = annotation__histogram(notes, evsel->idx);
1226         u64 len = symbol__size(sym), offset;
1227
1228         for (offset = 0; offset < len; ++offset)
1229                 if (h->addr[offset] != 0)
1230                         printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
1231                                sym->start + offset, h->addr[offset]);
1232         printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->sum", h->sum);
1233 }
1234
1235 int symbol__annotate_printf(struct symbol *sym, struct map *map,
1236                             struct perf_evsel *evsel, bool full_paths,
1237                             int min_pcnt, int max_lines, int context)
1238 {
1239         struct dso *dso = map->dso;
1240         char *filename;
1241         const char *d_filename;
1242         const char *evsel_name = perf_evsel__name(evsel);
1243         struct annotation *notes = symbol__annotation(sym);
1244         struct disasm_line *pos, *queue = NULL;
1245         u64 start = map__rip_2objdump(map, sym->start);
1246         int printed = 2, queue_len = 0;
1247         int more = 0;
1248         u64 len;
1249         int width = 8;
1250         int namelen, evsel_name_len, graph_dotted_len;
1251
1252         filename = strdup(dso->long_name);
1253         if (!filename)
1254                 return -ENOMEM;
1255
1256         if (full_paths)
1257                 d_filename = filename;
1258         else
1259                 d_filename = basename(filename);
1260
1261         len = symbol__size(sym);
1262         namelen = strlen(d_filename);
1263         evsel_name_len = strlen(evsel_name);
1264
1265         if (perf_evsel__is_group_event(evsel))
1266                 width *= evsel->nr_members;
1267
1268         printf(" %-*.*s|        Source code & Disassembly of %s for %s\n",
1269                width, width, "Percent", d_filename, evsel_name);
1270
1271         graph_dotted_len = width + namelen + evsel_name_len;
1272         printf("-%-*.*s-----------------------------------------\n",
1273                graph_dotted_len, graph_dotted_len, graph_dotted_line);
1274
1275         if (verbose)
1276                 symbol__annotate_hits(sym, evsel);
1277
1278         list_for_each_entry(pos, &notes->src->source, node) {
1279                 if (context && queue == NULL) {
1280                         queue = pos;
1281                         queue_len = 0;
1282                 }
1283
1284                 switch (disasm_line__print(pos, sym, start, evsel, len,
1285                                             min_pcnt, printed, max_lines,
1286                                             queue)) {
1287                 case 0:
1288                         ++printed;
1289                         if (context) {
1290                                 printed += queue_len;
1291                                 queue = NULL;
1292                                 queue_len = 0;
1293                         }
1294                         break;
1295                 case 1:
1296                         /* filtered by max_lines */
1297                         ++more;
1298                         break;
1299                 case -1:
1300                 default:
1301                         /*
1302                          * Filtered by min_pcnt or non IP lines when
1303                          * context != 0
1304                          */
1305                         if (!context)
1306                                 break;
1307                         if (queue_len == context)
1308                                 queue = list_entry(queue->node.next, typeof(*queue), node);
1309                         else
1310                                 ++queue_len;
1311                         break;
1312                 }
1313         }
1314
1315         free(filename);
1316
1317         return more;
1318 }
1319
1320 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
1321 {
1322         struct annotation *notes = symbol__annotation(sym);
1323         struct sym_hist *h = annotation__histogram(notes, evidx);
1324
1325         memset(h, 0, notes->src->sizeof_sym_hist);
1326 }
1327
1328 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
1329 {
1330         struct annotation *notes = symbol__annotation(sym);
1331         struct sym_hist *h = annotation__histogram(notes, evidx);
1332         int len = symbol__size(sym), offset;
1333
1334         h->sum = 0;
1335         for (offset = 0; offset < len; ++offset) {
1336                 h->addr[offset] = h->addr[offset] * 7 / 8;
1337                 h->sum += h->addr[offset];
1338         }
1339 }
1340
1341 void disasm__purge(struct list_head *head)
1342 {
1343         struct disasm_line *pos, *n;
1344
1345         list_for_each_entry_safe(pos, n, head, node) {
1346                 list_del(&pos->node);
1347                 disasm_line__free(pos);
1348         }
1349 }
1350
1351 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
1352 {
1353         size_t printed;
1354
1355         if (dl->offset == -1)
1356                 return fprintf(fp, "%s\n", dl->line);
1357
1358         printed = fprintf(fp, "%#" PRIx64 " %s", dl->offset, dl->name);
1359
1360         if (dl->ops.raw[0] != '\0') {
1361                 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
1362                                    dl->ops.raw);
1363         }
1364
1365         return printed + fprintf(fp, "\n");
1366 }
1367
1368 size_t disasm__fprintf(struct list_head *head, FILE *fp)
1369 {
1370         struct disasm_line *pos;
1371         size_t printed = 0;
1372
1373         list_for_each_entry(pos, head, node)
1374                 printed += disasm_line__fprintf(pos, fp);
1375
1376         return printed;
1377 }
1378
1379 int symbol__tty_annotate(struct symbol *sym, struct map *map,
1380                          struct perf_evsel *evsel, bool print_lines,
1381                          bool full_paths, int min_pcnt, int max_lines)
1382 {
1383         struct dso *dso = map->dso;
1384         struct rb_root source_line = RB_ROOT;
1385         u64 len;
1386
1387         if (symbol__annotate(sym, map, 0) < 0)
1388                 return -1;
1389
1390         len = symbol__size(sym);
1391
1392         if (print_lines) {
1393                 symbol__get_source_line(sym, map, evsel, &source_line, len);
1394                 print_summary(&source_line, dso->long_name);
1395         }
1396
1397         symbol__annotate_printf(sym, map, evsel, full_paths,
1398                                 min_pcnt, max_lines, 0);
1399         if (print_lines)
1400                 symbol__free_source_line(sym, len);
1401
1402         disasm__purge(&symbol__annotation(sym)->src->source);
1403
1404         return 0;
1405 }
1406
1407 int hist_entry__annotate(struct hist_entry *he, size_t privsize)
1408 {
1409         return symbol__annotate(he->ms.sym, he->ms.map, privsize);
1410 }
1411
1412 bool ui__has_annotation(void)
1413 {
1414         return use_browser == 1 && sort__has_sym;
1415 }