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 <regex.h>
  21 #include <pthread.h>
  22 #include <linux/bitops.h>
  23
  24 const char      *disassembler_style;
  25 const char      *objdump_path;
  26 static regex_t   file_lineno;
  27
  28 static struct ins *ins__find(const char *name);
  29 static int disasm_line__parse(char *line, char **namep, char **rawp);
  30
  31 static void ins__delete(struct ins_operands *ops)
  32 {
  33         if (ops == NULL)
  34                 return;
  35         zfree(&ops->source.raw);
  36         zfree(&ops->source.name);
  37         zfree(&ops->target.raw);
  38         zfree(&ops->target.name);
  39 }
  40
  41 static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size,
  42                               struct ins_operands *ops)
  43 {
  44         return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->raw);
  45 }
  46
  47 int ins__scnprintf(struct ins *ins, char *bf, size_t size,
  48                   struct ins_operands *ops)
  49 {
  50         if (ins->ops->scnprintf)
  51                 return ins->ops->scnprintf(ins, bf, size, ops);
  52
  53         return ins__raw_scnprintf(ins, bf, size, ops);
  54 }
  55
  56 static int call__parse(struct ins_operands *ops)
  57 {
  58         char *endptr, *tok, *name;
  59
  60         ops->target.addr = strtoull(ops->raw, &endptr, 16);
  61
  62         name = strchr(endptr, '<');
  63         if (name == NULL)
  64                 goto indirect_call;
  65
  66         name++;
  67
  68         tok = strchr(name, '>');
  69         if (tok == NULL)
  70                 return -1;
  71
  72         *tok = '\0';
  73         ops->target.name = strdup(name);
  74         *tok = '>';
  75
  76         return ops->target.name == NULL ? -1 : 0;
  77
  78 indirect_call:
  79         tok = strchr(endptr, '(');
  80         if (tok != NULL) {
  81                 ops->target.addr = 0;
  82                 return 0;
  83         }
  84
  85         tok = strchr(endptr, '*');
  86         if (tok == NULL)
  87                 return -1;
  88
  89         ops->target.addr = strtoull(tok + 1, NULL, 16);
  90         return 0;
  91 }
  92
  93 static int call__scnprintf(struct ins *ins, char *bf, size_t size,
  94                            struct ins_operands *ops)
  95 {
  96         if (ops->target.name)
  97                 return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->target.name);
  98
  99         if (ops->target.addr == 0)
 100                 return ins__raw_scnprintf(ins, bf, size, ops);
 101
 102         return scnprintf(bf, size, "%-6.6s *%" PRIx64, ins->name, ops->target.addr);
 103 }
 104
 105 static struct ins_ops call_ops = {
 106         .parse     = call__parse,
 107         .scnprintf = call__scnprintf,
 108 };
 109
 110 bool ins__is_call(const struct ins *ins)
 111 {
 112         return ins->ops == &call_ops;
 113 }
 114
 115 static int jump__parse(struct ins_operands *ops)
 116 {
 117         const char *s = strchr(ops->raw, '+');
 118
 119         ops->target.addr = strtoull(ops->raw, NULL, 16);
 120
 121         if (s++ != NULL)
 122                 ops->target.offset = strtoull(s, NULL, 16);
 123         else
 124                 ops->target.offset = UINT64_MAX;
 125
 126         return 0;
 127 }
 128
 129 static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
 130                            struct ins_operands *ops)
 131 {
 132         return scnprintf(bf, size, "%-6.6s %" PRIx64, ins->name, ops->target.offset);
 133 }
 134
 135 static struct ins_ops jump_ops = {
 136         .parse     = jump__parse,
 137         .scnprintf = jump__scnprintf,
 138 };
 139
 140 bool ins__is_jump(const struct ins *ins)
 141 {
 142         return ins->ops == &jump_ops;
 143 }
 144
 145 static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep)
 146 {
 147         char *endptr, *name, *t;
 148
 149         if (strstr(raw, "(%rip)") == NULL)
 150                 return 0;
 151
 152         *addrp = strtoull(comment, &endptr, 16);
 153         name = strchr(endptr, '<');
 154         if (name == NULL)
 155                 return -1;
 156
 157         name++;
 158
 159         t = strchr(name, '>');
 160         if (t == NULL)
 161                 return 0;
 162
 163         *t = '\0';
 164         *namep = strdup(name);
 165         *t = '>';
 166
 167         return 0;
 168 }
 169
 170 static int lock__parse(struct ins_operands *ops)
 171 {
 172         char *name;
 173
 174         ops->locked.ops = zalloc(sizeof(*ops->locked.ops));
 175         if (ops->locked.ops == NULL)
 176                 return 0;
 177
 178         if (disasm_line__parse(ops->raw, &name, &ops->locked.ops->raw) < 0)
 179                 goto out_free_ops;
 180
 181         ops->locked.ins = ins__find(name);
 182         free(name);
 183
 184         if (ops->locked.ins == NULL)
 185                 goto out_free_ops;
 186
 187         if (!ops->locked.ins->ops)
 188                 return 0;
 189
 190         if (ops->locked.ins->ops->parse &&
 191             ops->locked.ins->ops->parse(ops->locked.ops) < 0)
 192                 goto out_free_ops;
 193
 194         return 0;
 195
 196 out_free_ops:
 197         zfree(&ops->locked.ops);
 198         return 0;
 199 }
 200
 201 static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
 202                            struct ins_operands *ops)
 203 {
 204         int printed;
 205
 206         if (ops->locked.ins == NULL)
 207                 return ins__raw_scnprintf(ins, bf, size, ops);
 208
 209         printed = scnprintf(bf, size, "%-6.6s ", ins->name);
 210         return printed + ins__scnprintf(ops->locked.ins, bf + printed,
 211                                         size - printed, ops->locked.ops);
 212 }
 213
 214 static void lock__delete(struct ins_operands *ops)
 215 {
 216         struct ins *ins = ops->locked.ins;
 217
 218         if (ins && ins->ops->free)
 219                 ins->ops->free(ops->locked.ops);
 220         else
 221                 ins__delete(ops->locked.ops);
 222
 223         zfree(&ops->locked.ops);
 224         zfree(&ops->target.raw);
 225         zfree(&ops->target.name);
 226 }
 227
 228 static struct ins_ops lock_ops = {
 229         .free      = lock__delete,
 230         .parse     = lock__parse,
 231         .scnprintf = lock__scnprintf,
 232 };
 233
 234 static int mov__parse(struct ins_operands *ops)
 235 {
 236         char *s = strchr(ops->raw, ','), *target, *comment, prev;
 237
 238         if (s == NULL)
 239                 return -1;
 240
 241         *s = '\0';
 242         ops->source.raw = strdup(ops->raw);
 243         *s = ',';
 244
 245         if (ops->source.raw == NULL)
 246                 return -1;
 247
 248         target = ++s;
 249         comment = strchr(s, '#');
 250
 251         if (comment != NULL)
 252                 s = comment - 1;
 253         else
 254                 s = strchr(s, '\0') - 1;
 255
 256         while (s > target && isspace(s[0]))
 257                 --s;
 258         s++;
 259         prev = *s;
 260         *s = '\0';
 261
 262         ops->target.raw = strdup(target);
 263         *s = prev;
 264
 265         if (ops->target.raw == NULL)
 266                 goto out_free_source;
 267
 268         if (comment == NULL)
 269                 return 0;
 270
 271         while (comment[0] != '\0' && isspace(comment[0]))
 272                 ++comment;
 273
 274         comment__symbol(ops->source.raw, comment, &ops->source.addr, &ops->source.name);
 275         comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);
 276
 277         return 0;
 278
 279 out_free_source:
 280         zfree(&ops->source.raw);
 281         return -1;
 282 }
 283
 284 static int mov__scnprintf(struct ins *ins, char *bf, size_t size,
 285                            struct ins_operands *ops)
 286 {
 287         return scnprintf(bf, size, "%-6.6s %s,%s", ins->name,
 288                          ops->source.name ?: ops->source.raw,
 289                          ops->target.name ?: ops->target.raw);
 290 }
 291
 292 static struct ins_ops mov_ops = {
 293         .parse     = mov__parse,
 294         .scnprintf = mov__scnprintf,
 295 };
 296
 297 static int dec__parse(struct ins_operands *ops)
 298 {
 299         char *target, *comment, *s, prev;
 300
 301         target = s = ops->raw;
 302
 303         while (s[0] != '\0' && !isspace(s[0]))
 304                 ++s;
 305         prev = *s;
 306         *s = '\0';
 307
 308         ops->target.raw = strdup(target);
 309         *s = prev;
 310
 311         if (ops->target.raw == NULL)
 312                 return -1;
 313
 314         comment = strchr(s, '#');
 315         if (comment == NULL)
 316                 return 0;
 317
 318         while (comment[0] != '\0' && isspace(comment[0]))
 319                 ++comment;
 320
 321         comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);
 322
 323         return 0;
 324 }
 325
 326 static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
 327                            struct ins_operands *ops)
 328 {
 329         return scnprintf(bf, size, "%-6.6s %s", ins->name,
 330                          ops->target.name ?: ops->target.raw);
 331 }
 332
 333 static struct ins_ops dec_ops = {
 334         .parse     = dec__parse,
 335         .scnprintf = dec__scnprintf,
 336 };
 337
 338 static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size,
 339                           struct ins_operands *ops __maybe_unused)
 340 {
 341         return scnprintf(bf, size, "%-6.6s", "nop");
 342 }
 343
 344 static struct ins_ops nop_ops = {
 345         .scnprintf = nop__scnprintf,
 346 };
 347
 348 /*
 349  * Must be sorted by name!
 350  */
 351 static struct ins instructions[] = {
 352         { .name = "add",   .ops  = &mov_ops, },
 353         { .name = "addl",  .ops  = &mov_ops, },
 354         { .name = "addq",  .ops  = &mov_ops, },
 355         { .name = "addw",  .ops  = &mov_ops, },
 356         { .name = "and",   .ops  = &mov_ops, },
 357         { .name = "bts",   .ops  = &mov_ops, },
 358         { .name = "call",  .ops  = &call_ops, },
 359         { .name = "callq", .ops  = &call_ops, },
 360         { .name = "cmp",   .ops  = &mov_ops, },
 361         { .name = "cmpb",  .ops  = &mov_ops, },
 362         { .name = "cmpl",  .ops  = &mov_ops, },
 363         { .name = "cmpq",  .ops  = &mov_ops, },
 364         { .name = "cmpw",  .ops  = &mov_ops, },
 365         { .name = "cmpxch", .ops  = &mov_ops, },
 366         { .name = "dec",   .ops  = &dec_ops, },
 367         { .name = "decl",  .ops  = &dec_ops, },
 368         { .name = "imul",  .ops  = &mov_ops, },
 369         { .name = "inc",   .ops  = &dec_ops, },
 370         { .name = "incl",  .ops  = &dec_ops, },
 371         { .name = "ja",    .ops  = &jump_ops, },
 372         { .name = "jae",   .ops  = &jump_ops, },
 373         { .name = "jb",    .ops  = &jump_ops, },
 374         { .name = "jbe",   .ops  = &jump_ops, },
 375         { .name = "jc",    .ops  = &jump_ops, },
 376         { .name = "jcxz",  .ops  = &jump_ops, },
 377         { .name = "je",    .ops  = &jump_ops, },
 378         { .name = "jecxz", .ops  = &jump_ops, },
 379         { .name = "jg",    .ops  = &jump_ops, },
 380         { .name = "jge",   .ops  = &jump_ops, },
 381         { .name = "jl",    .ops  = &jump_ops, },
 382         { .name = "jle",   .ops  = &jump_ops, },
 383         { .name = "jmp",   .ops  = &jump_ops, },
 384         { .name = "jmpq",  .ops  = &jump_ops, },
 385         { .name = "jna",   .ops  = &jump_ops, },
 386         { .name = "jnae",  .ops  = &jump_ops, },
 387         { .name = "jnb",   .ops  = &jump_ops, },
 388         { .name = "jnbe",  .ops  = &jump_ops, },
 389         { .name = "jnc",   .ops  = &jump_ops, },
 390         { .name = "jne",   .ops  = &jump_ops, },
 391         { .name = "jng",   .ops  = &jump_ops, },
 392         { .name = "jnge",  .ops  = &jump_ops, },
 393         { .name = "jnl",   .ops  = &jump_ops, },
 394         { .name = "jnle",  .ops  = &jump_ops, },
 395         { .name = "jno",   .ops  = &jump_ops, },
 396         { .name = "jnp",   .ops  = &jump_ops, },
 397         { .name = "jns",   .ops  = &jump_ops, },
 398         { .name = "jnz",   .ops  = &jump_ops, },
 399         { .name = "jo",    .ops  = &jump_ops, },
 400         { .name = "jp",    .ops  = &jump_ops, },
 401         { .name = "jpe",   .ops  = &jump_ops, },
 402         { .name = "jpo",   .ops  = &jump_ops, },
 403         { .name = "jrcxz", .ops  = &jump_ops, },
 404         { .name = "js",    .ops  = &jump_ops, },
 405         { .name = "jz",    .ops  = &jump_ops, },
 406         { .name = "lea",   .ops  = &mov_ops, },
 407         { .name = "lock",  .ops  = &lock_ops, },
 408         { .name = "mov",   .ops  = &mov_ops, },
 409         { .name = "movb",  .ops  = &mov_ops, },
 410         { .name = "movdqa",.ops  = &mov_ops, },
 411         { .name = "movl",  .ops  = &mov_ops, },
 412         { .name = "movq",  .ops  = &mov_ops, },
 413         { .name = "movslq", .ops  = &mov_ops, },
 414         { .name = "movzbl", .ops  = &mov_ops, },
 415         { .name = "movzwl", .ops  = &mov_ops, },
 416         { .name = "nop",   .ops  = &nop_ops, },
 417         { .name = "nopl",  .ops  = &nop_ops, },
 418         { .name = "nopw",  .ops  = &nop_ops, },
 419         { .name = "or",    .ops  = &mov_ops, },
 420         { .name = "orl",   .ops  = &mov_ops, },
 421         { .name = "test",  .ops  = &mov_ops, },
 422         { .name = "testb", .ops  = &mov_ops, },
 423         { .name = "testl", .ops  = &mov_ops, },
 424         { .name = "xadd",  .ops  = &mov_ops, },
 425         { .name = "xbeginl", .ops  = &jump_ops, },
 426         { .name = "xbeginq", .ops  = &jump_ops, },
 427 };
 428
 429 static int ins__cmp(const void *name, const void *insp)
 430 {
 431         const struct ins *ins = insp;
 432
 433         return strcmp(name, ins->name);
 434 }
 435
 436 static struct ins *ins__find(const char *name)
 437 {
 438         const int nmemb = ARRAY_SIZE(instructions);
 439
 440         return bsearch(name, instructions, nmemb, sizeof(struct ins), ins__cmp);
 441 }
 442
 443 int symbol__annotate_init(struct map *map __maybe_unused, struct symbol *sym)
 444 {
 445         struct annotation *notes = symbol__annotation(sym);
 446         pthread_mutex_init(&notes->lock, NULL);
 447         return 0;
 448 }
 449
 450 int symbol__alloc_hist(struct symbol *sym)
 451 {
 452         struct annotation *notes = symbol__annotation(sym);
 453         const size_t size = symbol__size(sym);
 454         size_t sizeof_sym_hist;
 455
 456         /* Check for overflow when calculating sizeof_sym_hist */
 457         if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(u64))
 458                 return -1;
 459
 460         sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(u64));
 461
 462         /* Check for overflow in zalloc argument */
 463         if (sizeof_sym_hist > (SIZE_MAX - sizeof(*notes->src))
 464                                 / symbol_conf.nr_events)
 465                 return -1;
 466
 467         notes->src = zalloc(sizeof(*notes->src) + symbol_conf.nr_events * sizeof_sym_hist);
 468         if (notes->src == NULL)
 469                 return -1;
 470         notes->src->sizeof_sym_hist = sizeof_sym_hist;
 471         notes->src->nr_histograms   = symbol_conf.nr_events;
 472         INIT_LIST_HEAD(&notes->src->source);
 473         return 0;
 474 }
 475
 476 void symbol__annotate_zero_histograms(struct symbol *sym)
 477 {
 478         struct annotation *notes = symbol__annotation(sym);
 479
 480         pthread_mutex_lock(&notes->lock);
 481         if (notes->src != NULL)
 482                 memset(notes->src->histograms, 0,
 483                        notes->src->nr_histograms * notes->src->sizeof_sym_hist);
 484         pthread_mutex_unlock(&notes->lock);
 485 }
 486
 487 static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
 488                                       struct annotation *notes, int evidx, u64 addr)
 489 {
 490         unsigned offset;
 491         struct sym_hist *h;
 492
 493         pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr));
 494
 495         if (addr < sym->start || addr >= sym->end)
 496                 return -ERANGE;
 497
 498         offset = addr - sym->start;
 499         h = annotation__histogram(notes, evidx);
 500         h->sum++;
 501         h->addr[offset]++;
 502
 503         pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64
 504                   ", evidx=%d] => %" PRIu64 "\n", sym->start, sym->name,
 505                   addr, addr - sym->start, evidx, h->addr[offset]);
 506         return 0;
 507 }
 508
 509 static struct annotation *symbol__get_annotation(struct symbol *sym)
 510 {
 511         struct annotation *notes = symbol__annotation(sym);
 512
 513         if (notes->src == NULL) {
 514                 if (symbol__alloc_hist(sym) < 0)
 515                         return NULL;
 516         }
 517         return notes;
 518 }
 519
 520 static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
 521                                     int evidx, u64 addr)
 522 {
 523         struct annotation *notes;
 524
 525         if (sym == NULL)
 526                 return 0;
 527         notes = symbol__get_annotation(sym);
 528         if (notes == NULL)
 529                 return -ENOMEM;
 530         return __symbol__inc_addr_samples(sym, map, notes, evidx, addr);
 531 }
 532
 533 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, int evidx)
 534 {
 535         return symbol__inc_addr_samples(ams->sym, ams->map, evidx, ams->al_addr);
 536 }
 537
 538 int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 ip)
 539 {
 540         return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evidx, ip);
 541 }
 542
 543 static void disasm_line__init_ins(struct disasm_line *dl)
 544 {
 545         dl->ins = ins__find(dl->name);
 546
 547         if (dl->ins == NULL)
 548                 return;
 549
 550         if (!dl->ins->ops)
 551                 return;
 552
 553         if (dl->ins->ops->parse && dl->ins->ops->parse(&dl->ops) < 0)
 554                 dl->ins = NULL;
 555 }
 556
 557 static int disasm_line__parse(char *line, char **namep, char **rawp)
 558 {
 559         char *name = line, tmp;
 560
 561         while (isspace(name[0]))
 562                 ++name;
 563
 564         if (name[0] == '\0')
 565                 return -1;
 566
 567         *rawp = name + 1;
 568
 569         while ((*rawp)[0] != '\0' && !isspace((*rawp)[0]))
 570                 ++*rawp;
 571
 572         tmp = (*rawp)[0];
 573         (*rawp)[0] = '\0';
 574         *namep = strdup(name);
 575
 576         if (*namep == NULL)
 577                 goto out_free_name;
 578
 579         (*rawp)[0] = tmp;
 580
 581         if ((*rawp)[0] != '\0') {
 582                 (*rawp)++;
 583                 while (isspace((*rawp)[0]))
 584                         ++(*rawp);
 585         }
 586
 587         return 0;
 588
 589 out_free_name:
 590         zfree(namep);
 591         return -1;
 592 }
 593
 594 static struct disasm_line *disasm_line__new(s64 offset, char *line,
 595                                         size_t privsize, int line_nr)
 596 {
 597         struct disasm_line *dl = zalloc(sizeof(*dl) + privsize);
 598
 599         if (dl != NULL) {
 600                 dl->offset = offset;
 601                 dl->line = strdup(line);
 602                 dl->line_nr = line_nr;
 603                 if (dl->line == NULL)
 604                         goto out_delete;
 605
 606                 if (offset != -1) {
 607                         if (disasm_line__parse(dl->line, &dl->name, &dl->ops.raw) < 0)
 608                                 goto out_free_line;
 609
 610                         disasm_line__init_ins(dl);
 611                 }
 612         }
 613
 614         return dl;
 615
 616 out_free_line:
 617         zfree(&dl->line);
 618 out_delete:
 619         free(dl);
 620         return NULL;
 621 }
 622
 623 void disasm_line__free(struct disasm_line *dl)
 624 {
 625         zfree(&dl->line);
 626         zfree(&dl->name);
 627         if (dl->ins && dl->ins->ops->free)
 628                 dl->ins->ops->free(&dl->ops);
 629         else
 630                 ins__delete(&dl->ops);
 631         free(dl);
 632 }
 633
 634 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw)
 635 {
 636         if (raw || !dl->ins)
 637                 return scnprintf(bf, size, "%-6.6s %s", dl->name, dl->ops.raw);
 638
 639         return ins__scnprintf(dl->ins, bf, size, &dl->ops);
 640 }
 641
 642 static void disasm__add(struct list_head *head, struct disasm_line *line)
 643 {
 644         list_add_tail(&line->node, head);
 645 }
 646
 647 struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disasm_line *pos)
 648 {
 649         list_for_each_entry_continue(pos, head, node)
 650                 if (pos->offset >= 0)
 651                         return pos;
 652
 653         return NULL;
 654 }
 655
 656 double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset,
 657                             s64 end, const char **path, u64 *nr_samples)
 658 {
 659         struct source_line *src_line = notes->src->lines;
 660         double percent = 0.0;
 661         *nr_samples = 0;
 662
 663         if (src_line) {
 664                 size_t sizeof_src_line = sizeof(*src_line) +
 665                                 sizeof(src_line->samples) * (src_line->nr_pcnt - 1);
 666
 667                 while (offset < end) {
 668                         src_line = (void *)notes->src->lines +
 669                                         (sizeof_src_line * offset);
 670
 671                         if (*path == NULL)
 672                                 *path = src_line->path;
 673
 674                         percent += src_line->samples[evidx].percent;
 675                         *nr_samples += src_line->samples[evidx].nr;
 676                         offset++;
 677                 }
 678         } else {
 679                 struct sym_hist *h = annotation__histogram(notes, evidx);
 680                 unsigned int hits = 0;
 681
 682                 while (offset < end)
 683                         hits += h->addr[offset++];
 684
 685                 if (h->sum) {
 686                         *nr_samples = hits;
 687                         percent = 100.0 * hits / h->sum;
 688                 }
 689         }
 690
 691         return percent;
 692 }
 693
 694 static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 start,
 695                       struct perf_evsel *evsel, u64 len, int min_pcnt, int printed,
 696                       int max_lines, struct disasm_line *queue)
 697 {
 698         static const char *prev_line;
 699         static const char *prev_color;
 700
 701         if (dl->offset != -1) {
 702                 const char *path = NULL;
 703                 u64 nr_samples;
 704                 double percent, max_percent = 0.0;
 705                 double *ppercents = &percent;
 706                 u64 *psamples = &nr_samples;
 707                 int i, nr_percent = 1;
 708                 const char *color;
 709                 struct annotation *notes = symbol__annotation(sym);
 710                 s64 offset = dl->offset;
 711                 const u64 addr = start + offset;
 712                 struct disasm_line *next;
 713
 714                 next = disasm__get_next_ip_line(&notes->src->source, dl);
 715
 716                 if (perf_evsel__is_group_event(evsel)) {
 717                         nr_percent = evsel->nr_members;
 718                         ppercents = calloc(nr_percent, sizeof(double));
 719                         psamples = calloc(nr_percent, sizeof(u64));
 720                         if (ppercents == NULL || psamples == NULL) {
 721                                 return -1;
 722                         }
 723                 }
 724
 725                 for (i = 0; i < nr_percent; i++) {
 726                         percent = disasm__calc_percent(notes,
 727                                         notes->src->lines ? i : evsel->idx + i,
 728                                         offset,
 729                                         next ? next->offset : (s64) len,
 730                                         &path, &nr_samples);
 731
 732                         ppercents[i] = percent;
 733                         psamples[i] = nr_samples;
 734                         if (percent > max_percent)
 735                                 max_percent = percent;
 736                 }
 737
 738                 if (max_percent < min_pcnt)
 739                         return -1;
 740
 741                 if (max_lines && printed >= max_lines)
 742                         return 1;
 743
 744                 if (queue != NULL) {
 745                         list_for_each_entry_from(queue, &notes->src->source, node) {
 746                                 if (queue == dl)
 747                                         break;
 748                                 disasm_line__print(queue, sym, start, evsel, len,
 749                                                     0, 0, 1, NULL);
 750                         }
 751                 }
 752
 753                 color = get_percent_color(max_percent);
 754
 755                 /*
 756                  * Also color the filename and line if needed, with
 757                  * the same color than the percentage. Don't print it
 758                  * twice for close colored addr with the same filename:line
 759                  */
 760                 if (path) {
 761                         if (!prev_line || strcmp(prev_line, path)
 762                                        || color != prev_color) {
 763                                 color_fprintf(stdout, color, " %s", path);
 764                                 prev_line = path;
 765                                 prev_color = color;
 766                         }
 767                 }
 768
 769                 for (i = 0; i < nr_percent; i++) {
 770                         percent = ppercents[i];
 771                         nr_samples = psamples[i];
 772                         color = get_percent_color(percent);
 773
 774                         if (symbol_conf.show_total_period)
 775                                 color_fprintf(stdout, color, " %7" PRIu64,
 776                                               nr_samples);
 777                         else
 778                                 color_fprintf(stdout, color, " %7.2f", percent);
 779                 }
 780
 781                 printf(" :      ");
 782                 color_fprintf(stdout, PERF_COLOR_MAGENTA, "  %" PRIx64 ":", addr);
 783                 color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", dl->line);
 784
 785                 if (ppercents != &percent)
 786                         free(ppercents);
 787
 788                 if (psamples != &nr_samples)
 789                         free(psamples);
 790
 791         } else if (max_lines && printed >= max_lines)
 792                 return 1;
 793         else {
 794                 int width = 8;
 795
 796                 if (queue)
 797                         return -1;
 798
 799                 if (perf_evsel__is_group_event(evsel))
 800                         width *= evsel->nr_members;
 801
 802                 if (!*dl->line)
 803                         printf(" %*s:\n", width, " ");
 804                 else
 805                         printf(" %*s:   %s\n", width, " ", dl->line);
 806         }
 807
 808         return 0;
 809 }
 810
 811 /*
 812  * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw)
 813  * which looks like following
 814  *
 815  *  0000000000415500 <_init>:
 816  *    415500:       sub    $0x8,%rsp
 817  *    415504:       mov    0x2f5ad5(%rip),%rax        # 70afe0 <_DYNAMIC+0x2f8>
 818  *    41550b:       test   %rax,%rax
 819  *    41550e:       je     415515 <_init+0x15>
 820  *    415510:       callq  416e70 <__gmon_start__@plt>
 821  *    415515:       add    $0x8,%rsp
 822  *    415519:       retq
 823  *
 824  * it will be parsed and saved into struct disasm_line as
 825  *  <offset>       <name>  <ops.raw>
 826  *
 827  * The offset will be a relative offset from the start of the symbol and -1
 828  * means that it's not a disassembly line so should be treated differently.
 829  * The ops.raw part will be parsed further according to type of the instruction.
 830  */
 831 static int symbol__parse_objdump_line(struct symbol *sym, struct map *map,
 832                                       FILE *file, size_t privsize,
 833                                       int *line_nr)
 834 {
 835         struct annotation *notes = symbol__annotation(sym);
 836         struct disasm_line *dl;
 837         char *line = NULL, *parsed_line, *tmp, *tmp2, *c;
 838         size_t line_len;
 839         s64 line_ip, offset = -1;
 840         regmatch_t match[2];
 841
 842         if (getline(&line, &line_len, file) < 0)
 843                 return -1;
 844
 845         if (!line)
 846                 return -1;
 847
 848         while (line_len != 0 && isspace(line[line_len - 1]))
 849                 line[--line_len] = '\0';
 850
 851         c = strchr(line, '\n');
 852         if (c)
 853                 *c = 0;
 854
 855         line_ip = -1;
 856         parsed_line = line;
 857
 858         /* /filename:linenr ? Save line number and ignore. */
 859         if (regexec(&file_lineno, line, 2, match, 0) == 0) {
 860                 *line_nr = atoi(line + match[1].rm_so);
 861                 return 0;
 862         }
 863
 864         /*
 865          * Strip leading spaces:
 866          */
 867         tmp = line;
 868         while (*tmp) {
 869                 if (*tmp != ' ')
 870                         break;
 871                 tmp++;
 872         }
 873
 874         if (*tmp) {
 875                 /*
 876                  * Parse hexa addresses followed by ':'
 877                  */
 878                 line_ip = strtoull(tmp, &tmp2, 16);
 879                 if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0')
 880                         line_ip = -1;
 881         }
 882
 883         if (line_ip != -1) {
 884                 u64 start = map__rip_2objdump(map, sym->start),
 885                     end = map__rip_2objdump(map, sym->end);
 886
 887                 offset = line_ip - start;
 888                 if ((u64)line_ip < start || (u64)line_ip >= end)
 889                         offset = -1;
 890                 else
 891                         parsed_line = tmp2 + 1;
 892         }
 893
 894         dl = disasm_line__new(offset, parsed_line, privsize, *line_nr);
 895         free(line);
 896         (*line_nr)++;
 897
 898         if (dl == NULL)
 899                 return -1;
 900
 901         if (dl->ops.target.offset == UINT64_MAX)
 902                 dl->ops.target.offset = dl->ops.target.addr -
 903                                         map__rip_2objdump(map, sym->start);
 904
 905         /* kcore has no symbols, so add the call target name */
 906         if (dl->ins && ins__is_call(dl->ins) && !dl->ops.target.name) {
 907                 struct addr_map_symbol target = {
 908                         .map = map,
 909                         .addr = dl->ops.target.addr,
 910                 };
 911
 912                 if (!map_groups__find_ams(&target, NULL) &&
 913                     target.sym->start == target.al_addr)
 914                         dl->ops.target.name = strdup(target.sym->name);
 915         }
 916
 917         disasm__add(&notes->src->source, dl);
 918
 919         return 0;
 920 }
 921
 922 static __attribute__((constructor)) void symbol__init_regexpr(void)
 923 {
 924         regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED);
 925 }
 926
 927 static void delete_last_nop(struct symbol *sym)
 928 {
 929         struct annotation *notes = symbol__annotation(sym);
 930         struct list_head *list = &notes->src->source;
 931         struct disasm_line *dl;
 932
 933         while (!list_empty(list)) {
 934                 dl = list_entry(list->prev, struct disasm_line, node);
 935
 936                 if (dl->ins && dl->ins->ops) {
 937                         if (dl->ins->ops != &nop_ops)
 938                                 return;
 939                 } else {
 940                         if (!strstr(dl->line, " nop ") &&
 941                             !strstr(dl->line, " nopl ") &&
 942                             !strstr(dl->line, " nopw "))
 943                                 return;
 944                 }
 945
 946                 list_del(&dl->node);
 947                 disasm_line__free(dl);
 948         }
 949 }
 950
 951 int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize)
 952 {
 953         struct dso *dso = map->dso;
 954         char *filename = dso__build_id_filename(dso, NULL, 0);
 955         bool free_filename = true;
 956         char command[PATH_MAX * 2];
 957         FILE *file;
 958         int err = 0;
 959         char symfs_filename[PATH_MAX];
 960         struct kcore_extract kce;
 961         bool delete_extract = false;
 962         int lineno = 0;
 963
 964         if (filename)
 965                 symbol__join_symfs(symfs_filename, filename);
 966
 967         if (filename == NULL) {
 968                 if (dso->has_build_id) {
 969                         pr_err("Can't annotate %s: not enough memory\n",
 970                                sym->name);
 971                         return -ENOMEM;
 972                 }
 973                 goto fallback;
 974         } else if (dso__is_kcore(dso)) {
 975                 goto fallback;
 976         } else if (readlink(symfs_filename, command, sizeof(command)) < 0 ||
 977                    strstr(command, "[kernel.kallsyms]") ||
 978                    access(symfs_filename, R_OK)) {
 979                 free(filename);
 980 fallback:
 981                 /*
 982                  * If we don't have build-ids or the build-id file isn't in the
 983                  * cache, or is just a kallsyms file, well, lets hope that this
 984                  * DSO is the same as when 'perf record' ran.
 985                  */
 986                 filename = (char *)dso->long_name;
 987                 symbol__join_symfs(symfs_filename, filename);
 988                 free_filename = false;
 989         }
 990
 991         if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
 992             !dso__is_kcore(dso)) {
 993                 char bf[BUILD_ID_SIZE * 2 + 16] = " with build id ";
 994                 char *build_id_msg = NULL;
 995
 996                 if (dso->annotate_warned)
 997                         goto out_free_filename;
 998
 999                 if (dso->has_build_id) {
1000                         build_id__sprintf(dso->build_id,
1001                                           sizeof(dso->build_id), bf + 15);
1002                         build_id_msg = bf;
1003                 }
1004                 err = -ENOENT;
1005                 dso->annotate_warned = 1;
1006                 pr_err("Can't annotate %s:\n\n"
1007                        "No vmlinux file%s\nwas found in the path.\n\n"
1008                        "Please use:\n\n"
1009                        "  perf buildid-cache -vu vmlinux\n\n"
1010                        "or:\n\n"
1011                        "  --vmlinux vmlinux\n",
1012                        sym->name, build_id_msg ?: "");
1013                 goto out_free_filename;
1014         }
1015
1016         pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
1017                  filename, sym->name, map->unmap_ip(map, sym->start),
1018                  map->unmap_ip(map, sym->end));
1019
1020         pr_debug("annotating [%p] %30s : [%p] %30s\n",
1021                  dso, dso->long_name, sym, sym->name);
1022
1023         if (dso__is_kcore(dso)) {
1024                 kce.kcore_filename = symfs_filename;
1025                 kce.addr = map__rip_2objdump(map, sym->start);
1026                 kce.offs = sym->start;
1027                 kce.len = sym->end - sym->start;
1028                 if (!kcore_extract__create(&kce)) {
1029                         delete_extract = true;
1030                         strlcpy(symfs_filename, kce.extract_filename,
1031                                 sizeof(symfs_filename));
1032                         if (free_filename) {
1033                                 free(filename);
1034                                 free_filename = false;
1035                         }
1036                         filename = symfs_filename;
1037                 }
1038         } else if (dso__needs_decompress(dso)) {
1039                 char tmp[PATH_MAX];
1040                 struct kmod_path m;
1041                 int fd;
1042                 bool ret;
1043
1044                 if (kmod_path__parse_ext(&m, symfs_filename))
1045                         goto out_free_filename;
1046
1047                 snprintf(tmp, PATH_MAX, "/tmp/perf-kmod-XXXXXX");
1048
1049                 fd = mkstemp(tmp);
1050                 if (fd < 0) {
1051                         free(m.ext);
1052                         goto out_free_filename;
1053                 }
1054
1055                 ret = decompress_to_file(m.ext, symfs_filename, fd);
1056
1057                 free(m.ext);
1058                 close(fd);
1059
1060                 if (!ret)
1061                         goto out_free_filename;
1062
1063                 strcpy(symfs_filename, tmp);
1064         }
1065
1066         snprintf(command, sizeof(command),
1067                  "%s %s%s --start-address=0x%016" PRIx64
1068                  " --stop-address=0x%016" PRIx64
1069                  " -l -d %s %s -C %s 2>/dev/null|grep -v %s|expand",
1070                  objdump_path ? objdump_path : "objdump",
1071                  disassembler_style ? "-M " : "",
1072                  disassembler_style ? disassembler_style : "",
1073                  map__rip_2objdump(map, sym->start),
1074                  map__rip_2objdump(map, sym->end),
1075                  symbol_conf.annotate_asm_raw ? "" : "--no-show-raw",
1076                  symbol_conf.annotate_src ? "-S" : "",
1077                  symfs_filename, filename);
1078
1079         pr_debug("Executing: %s\n", command);
1080
1081         file = popen(command, "r");
1082         if (!file)
1083                 goto out_remove_tmp;
1084
1085         while (!feof(file))
1086                 if (symbol__parse_objdump_line(sym, map, file, privsize,
1087                             &lineno) < 0)
1088                         break;
1089
1090         /*
1091          * kallsyms does not have symbol sizes so there may a nop at the end.
1092          * Remove it.
1093          */
1094         if (dso__is_kcore(dso))
1095                 delete_last_nop(sym);
1096
1097         pclose(file);
1098
1099 out_remove_tmp:
1100         if (dso__needs_decompress(dso))
1101                 unlink(symfs_filename);
1102 out_free_filename:
1103         if (delete_extract)
1104                 kcore_extract__delete(&kce);
1105         if (free_filename)
1106                 free(filename);
1107         return err;
1108 }
1109
1110 static void insert_source_line(struct rb_root *root, struct source_line *src_line)
1111 {
1112         struct source_line *iter;
1113         struct rb_node **p = &root->rb_node;
1114         struct rb_node *parent = NULL;
1115         int i, ret;
1116
1117         while (*p != NULL) {
1118                 parent = *p;
1119                 iter = rb_entry(parent, struct source_line, node);
1120
1121                 ret = strcmp(iter->path, src_line->path);
1122                 if (ret == 0) {
1123                         for (i = 0; i < src_line->nr_pcnt; i++)
1124                                 iter->samples[i].percent_sum += src_line->samples[i].percent;
1125                         return;
1126                 }
1127
1128                 if (ret < 0)
1129                         p = &(*p)->rb_left;
1130                 else
1131                         p = &(*p)->rb_right;
1132         }
1133
1134         for (i = 0; i < src_line->nr_pcnt; i++)
1135                 src_line->samples[i].percent_sum = src_line->samples[i].percent;
1136
1137         rb_link_node(&src_line->node, parent, p);
1138         rb_insert_color(&src_line->node, root);
1139 }
1140
1141 static int cmp_source_line(struct source_line *a, struct source_line *b)
1142 {
1143         int i;
1144
1145         for (i = 0; i < a->nr_pcnt; i++) {
1146                 if (a->samples[i].percent_sum == b->samples[i].percent_sum)
1147                         continue;
1148                 return a->samples[i].percent_sum > b->samples[i].percent_sum;
1149         }
1150
1151         return 0;
1152 }
1153
1154 static void __resort_source_line(struct rb_root *root, struct source_line *src_line)
1155 {
1156         struct source_line *iter;
1157         struct rb_node **p = &root->rb_node;
1158         struct rb_node *parent = NULL;
1159
1160         while (*p != NULL) {
1161                 parent = *p;
1162                 iter = rb_entry(parent, struct source_line, node);
1163
1164                 if (cmp_source_line(src_line, iter))
1165                         p = &(*p)->rb_left;
1166                 else
1167                         p = &(*p)->rb_right;
1168         }
1169
1170         rb_link_node(&src_line->node, parent, p);
1171         rb_insert_color(&src_line->node, root);
1172 }
1173
1174 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
1175 {
1176         struct source_line *src_line;
1177         struct rb_node *node;
1178
1179         node = rb_first(src_root);
1180         while (node) {
1181                 struct rb_node *next;
1182
1183                 src_line = rb_entry(node, struct source_line, node);
1184                 next = rb_next(node);
1185                 rb_erase(node, src_root);
1186
1187                 __resort_source_line(dest_root, src_line);
1188                 node = next;
1189         }
1190 }
1191
1192 static void symbol__free_source_line(struct symbol *sym, int len)
1193 {
1194         struct annotation *notes = symbol__annotation(sym);
1195         struct source_line *src_line = notes->src->lines;
1196         size_t sizeof_src_line;
1197         int i;
1198
1199         sizeof_src_line = sizeof(*src_line) +
1200                           (sizeof(src_line->samples) * (src_line->nr_pcnt - 1));
1201
1202         for (i = 0; i < len; i++) {
1203                 free_srcline(src_line->path);
1204                 src_line = (void *)src_line + sizeof_src_line;
1205         }
1206
1207         zfree(&notes->src->lines);
1208 }
1209
1210 /* Get the filename:line for the colored entries */
1211 static int symbol__get_source_line(struct symbol *sym, struct map *map,
1212                                    struct perf_evsel *evsel,
1213                                    struct rb_root *root, int len)
1214 {
1215         u64 start;
1216         int i, k;
1217         int evidx = evsel->idx;
1218         struct source_line *src_line;
1219         struct annotation *notes = symbol__annotation(sym);
1220         struct sym_hist *h = annotation__histogram(notes, evidx);
1221         struct rb_root tmp_root = RB_ROOT;
1222         int nr_pcnt = 1;
1223         u64 h_sum = h->sum;
1224         size_t sizeof_src_line = sizeof(struct source_line);
1225
1226         if (perf_evsel__is_group_event(evsel)) {
1227                 for (i = 1; i < evsel->nr_members; i++) {
1228                         h = annotation__histogram(notes, evidx + i);
1229                         h_sum += h->sum;
1230                 }
1231                 nr_pcnt = evsel->nr_members;
1232                 sizeof_src_line += (nr_pcnt - 1) * sizeof(src_line->samples);
1233         }
1234
1235         if (!h_sum)
1236                 return 0;
1237
1238         src_line = notes->src->lines = calloc(len, sizeof_src_line);
1239         if (!notes->src->lines)
1240                 return -1;
1241
1242         start = map__rip_2objdump(map, sym->start);
1243
1244         for (i = 0; i < len; i++) {
1245                 u64 offset;
1246                 double percent_max = 0.0;
1247
1248                 src_line->nr_pcnt = nr_pcnt;
1249
1250                 for (k = 0; k < nr_pcnt; k++) {
1251                         h = annotation__histogram(notes, evidx + k);
1252                         src_line->samples[k].percent = 100.0 * h->addr[i] / h->sum;
1253
1254                         if (src_line->samples[k].percent > percent_max)
1255                                 percent_max = src_line->samples[k].percent;
1256                 }
1257
1258                 if (percent_max <= 0.5)
1259                         goto next;
1260
1261                 offset = start + i;
1262                 src_line->path = get_srcline(map->dso, offset, NULL, false);
1263                 insert_source_line(&tmp_root, src_line);
1264
1265         next:
1266                 src_line = (void *)src_line + sizeof_src_line;
1267         }
1268
1269         resort_source_line(root, &tmp_root);
1270         return 0;
1271 }
1272
1273 static void print_summary(struct rb_root *root, const char *filename)
1274 {
1275         struct source_line *src_line;
1276         struct rb_node *node;
1277
1278         printf("\nSorted summary for file %s\n", filename);
1279         printf("----------------------------------------------\n\n");
1280
1281         if (RB_EMPTY_ROOT(root)) {
1282                 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
1283                 return;
1284         }
1285
1286         node = rb_first(root);
1287         while (node) {
1288                 double percent, percent_max = 0.0;
1289                 const char *color;
1290                 char *path;
1291                 int i;
1292
1293                 src_line = rb_entry(node, struct source_line, node);
1294                 for (i = 0; i < src_line->nr_pcnt; i++) {
1295                         percent = src_line->samples[i].percent_sum;
1296                         color = get_percent_color(percent);
1297                         color_fprintf(stdout, color, " %7.2f", percent);
1298
1299                         if (percent > percent_max)
1300                                 percent_max = percent;
1301                 }
1302
1303                 path = src_line->path;
1304                 color = get_percent_color(percent_max);
1305                 color_fprintf(stdout, color, " %s\n", path);
1306
1307                 node = rb_next(node);
1308         }
1309 }
1310
1311 static void symbol__annotate_hits(struct symbol *sym, struct perf_evsel *evsel)
1312 {
1313         struct annotation *notes = symbol__annotation(sym);
1314         struct sym_hist *h = annotation__histogram(notes, evsel->idx);
1315         u64 len = symbol__size(sym), offset;
1316
1317         for (offset = 0; offset < len; ++offset)
1318                 if (h->addr[offset] != 0)
1319                         printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
1320                                sym->start + offset, h->addr[offset]);
1321         printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->sum", h->sum);
1322 }
1323
1324 int symbol__annotate_printf(struct symbol *sym, struct map *map,
1325                             struct perf_evsel *evsel, bool full_paths,
1326                             int min_pcnt, int max_lines, int context)
1327 {
1328         struct dso *dso = map->dso;
1329         char *filename;
1330         const char *d_filename;
1331         const char *evsel_name = perf_evsel__name(evsel);
1332         struct annotation *notes = symbol__annotation(sym);
1333         struct disasm_line *pos, *queue = NULL;
1334         u64 start = map__rip_2objdump(map, sym->start);
1335         int printed = 2, queue_len = 0;
1336         int more = 0;
1337         u64 len;
1338         int width = 8;
1339         int namelen, evsel_name_len, graph_dotted_len;
1340
1341         filename = strdup(dso->long_name);
1342         if (!filename)
1343                 return -ENOMEM;
1344
1345         if (full_paths)
1346                 d_filename = filename;
1347         else
1348                 d_filename = basename(filename);
1349
1350         len = symbol__size(sym);
1351         namelen = strlen(d_filename);
1352         evsel_name_len = strlen(evsel_name);
1353
1354         if (perf_evsel__is_group_event(evsel))
1355                 width *= evsel->nr_members;
1356
1357         printf(" %-*.*s|        Source code & Disassembly of %s for %s\n",
1358                width, width, "Percent", d_filename, evsel_name);
1359
1360         graph_dotted_len = width + namelen + evsel_name_len;
1361         printf("-%-*.*s-----------------------------------------\n",
1362                graph_dotted_len, graph_dotted_len, graph_dotted_line);
1363
1364         if (verbose)
1365                 symbol__annotate_hits(sym, evsel);
1366
1367         list_for_each_entry(pos, &notes->src->source, node) {
1368                 if (context && queue == NULL) {
1369                         queue = pos;
1370                         queue_len = 0;
1371                 }
1372
1373                 switch (disasm_line__print(pos, sym, start, evsel, len,
1374                                             min_pcnt, printed, max_lines,
1375                                             queue)) {
1376                 case 0:
1377                         ++printed;
1378                         if (context) {
1379                                 printed += queue_len;
1380                                 queue = NULL;
1381                                 queue_len = 0;
1382                         }
1383                         break;
1384                 case 1:
1385                         /* filtered by max_lines */
1386                         ++more;
1387                         break;
1388                 case -1:
1389                 default:
1390                         /*
1391                          * Filtered by min_pcnt or non IP lines when
1392                          * context != 0
1393                          */
1394                         if (!context)
1395                                 break;
1396                         if (queue_len == context)
1397                                 queue = list_entry(queue->node.next, typeof(*queue), node);
1398                         else
1399                                 ++queue_len;
1400                         break;
1401                 }
1402         }
1403
1404         free(filename);
1405
1406         return more;
1407 }
1408
1409 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
1410 {
1411         struct annotation *notes = symbol__annotation(sym);
1412         struct sym_hist *h = annotation__histogram(notes, evidx);
1413
1414         memset(h, 0, notes->src->sizeof_sym_hist);
1415 }
1416
1417 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
1418 {
1419         struct annotation *notes = symbol__annotation(sym);
1420         struct sym_hist *h = annotation__histogram(notes, evidx);
1421         int len = symbol__size(sym), offset;
1422
1423         h->sum = 0;
1424         for (offset = 0; offset < len; ++offset) {
1425                 h->addr[offset] = h->addr[offset] * 7 / 8;
1426                 h->sum += h->addr[offset];
1427         }
1428 }
1429
1430 void disasm__purge(struct list_head *head)
1431 {
1432         struct disasm_line *pos, *n;
1433
1434         list_for_each_entry_safe(pos, n, head, node) {
1435                 list_del(&pos->node);
1436                 disasm_line__free(pos);
1437         }
1438 }
1439
1440 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
1441 {
1442         size_t printed;
1443
1444         if (dl->offset == -1)
1445                 return fprintf(fp, "%s\n", dl->line);
1446
1447         printed = fprintf(fp, "%#" PRIx64 " %s", dl->offset, dl->name);
1448
1449         if (dl->ops.raw[0] != '\0') {
1450                 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
1451                                    dl->ops.raw);
1452         }
1453
1454         return printed + fprintf(fp, "\n");
1455 }
1456
1457 size_t disasm__fprintf(struct list_head *head, FILE *fp)
1458 {
1459         struct disasm_line *pos;
1460         size_t printed = 0;
1461
1462         list_for_each_entry(pos, head, node)
1463                 printed += disasm_line__fprintf(pos, fp);
1464
1465         return printed;
1466 }
1467
1468 int symbol__tty_annotate(struct symbol *sym, struct map *map,
1469                          struct perf_evsel *evsel, bool print_lines,
1470                          bool full_paths, int min_pcnt, int max_lines)
1471 {
1472         struct dso *dso = map->dso;
1473         struct rb_root source_line = RB_ROOT;
1474         u64 len;
1475
1476         if (symbol__annotate(sym, map, 0) < 0)
1477                 return -1;
1478
1479         len = symbol__size(sym);
1480
1481         if (print_lines) {
1482                 symbol__get_source_line(sym, map, evsel, &source_line, len);
1483                 print_summary(&source_line, dso->long_name);
1484         }
1485
1486         symbol__annotate_printf(sym, map, evsel, full_paths,
1487                                 min_pcnt, max_lines, 0);
1488         if (print_lines)
1489                 symbol__free_source_line(sym, len);
1490
1491         disasm__purge(&symbol__annotation(sym)->src->source);
1492
1493         return 0;
1494 }
1495
1496 int hist_entry__annotate(struct hist_entry *he, size_t privsize)
1497 {
1498         return symbol__annotate(he->ms.sym, he->ms.map, privsize);
1499 }
1500
1501 bool ui__has_annotation(void)
1502 {
1503         return use_browser == 1 && sort__has_sym;
1504 }