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)
 658 {
 659         struct source_line *src_line = notes->src->lines;
 660         double percent = 0.0;
 661
 662         if (src_line) {
 663                 size_t sizeof_src_line = sizeof(*src_line) +
 664                                 sizeof(src_line->p) * (src_line->nr_pcnt - 1);
 665
 666                 while (offset < end) {
 667                         src_line = (void *)notes->src->lines +
 668                                         (sizeof_src_line * offset);
 669
 670                         if (*path == NULL)
 671                                 *path = src_line->path;
 672
 673                         percent += src_line->p[evidx].percent;
 674                         offset++;
 675                 }
 676         } else {
 677                 struct sym_hist *h = annotation__histogram(notes, evidx);
 678                 unsigned int hits = 0;
 679
 680                 while (offset < end)
 681                         hits += h->addr[offset++];
 682
 683                 if (h->sum)
 684                         percent = 100.0 * hits / h->sum;
 685         }
 686
 687         return percent;
 688 }
 689
 690 static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 start,
 691                       struct perf_evsel *evsel, u64 len, int min_pcnt, int printed,
 692                       int max_lines, struct disasm_line *queue)
 693 {
 694         static const char *prev_line;
 695         static const char *prev_color;
 696
 697         if (dl->offset != -1) {
 698                 const char *path = NULL;
 699                 double percent, max_percent = 0.0;
 700                 double *ppercents = &percent;
 701                 int i, nr_percent = 1;
 702                 const char *color;
 703                 struct annotation *notes = symbol__annotation(sym);
 704                 s64 offset = dl->offset;
 705                 const u64 addr = start + offset;
 706                 struct disasm_line *next;
 707
 708                 next = disasm__get_next_ip_line(&notes->src->source, dl);
 709
 710                 if (perf_evsel__is_group_event(evsel)) {
 711                         nr_percent = evsel->nr_members;
 712                         ppercents = calloc(nr_percent, sizeof(double));
 713                         if (ppercents == NULL)
 714                                 return -1;
 715                 }
 716
 717                 for (i = 0; i < nr_percent; i++) {
 718                         percent = disasm__calc_percent(notes,
 719                                         notes->src->lines ? i : evsel->idx + i,
 720                                         offset,
 721                                         next ? next->offset : (s64) len,
 722                                         &path);
 723
 724                         ppercents[i] = percent;
 725                         if (percent > max_percent)
 726                                 max_percent = percent;
 727                 }
 728
 729                 if (max_percent < min_pcnt)
 730                         return -1;
 731
 732                 if (max_lines && printed >= max_lines)
 733                         return 1;
 734
 735                 if (queue != NULL) {
 736                         list_for_each_entry_from(queue, &notes->src->source, node) {
 737                                 if (queue == dl)
 738                                         break;
 739                                 disasm_line__print(queue, sym, start, evsel, len,
 740                                                     0, 0, 1, NULL);
 741                         }
 742                 }
 743
 744                 color = get_percent_color(max_percent);
 745
 746                 /*
 747                  * Also color the filename and line if needed, with
 748                  * the same color than the percentage. Don't print it
 749                  * twice for close colored addr with the same filename:line
 750                  */
 751                 if (path) {
 752                         if (!prev_line || strcmp(prev_line, path)
 753                                        || color != prev_color) {
 754                                 color_fprintf(stdout, color, " %s", path);
 755                                 prev_line = path;
 756                                 prev_color = color;
 757                         }
 758                 }
 759
 760                 for (i = 0; i < nr_percent; i++) {
 761                         percent = ppercents[i];
 762                         color = get_percent_color(percent);
 763                         color_fprintf(stdout, color, " %7.2f", percent);
 764                 }
 765
 766                 printf(" :      ");
 767                 color_fprintf(stdout, PERF_COLOR_MAGENTA, "  %" PRIx64 ":", addr);
 768                 color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", dl->line);
 769
 770                 if (ppercents != &percent)
 771                         free(ppercents);
 772
 773         } else if (max_lines && printed >= max_lines)
 774                 return 1;
 775         else {
 776                 int width = 8;
 777
 778                 if (queue)
 779                         return -1;
 780
 781                 if (perf_evsel__is_group_event(evsel))
 782                         width *= evsel->nr_members;
 783
 784                 if (!*dl->line)
 785                         printf(" %*s:\n", width, " ");
 786                 else
 787                         printf(" %*s:   %s\n", width, " ", dl->line);
 788         }
 789
 790         return 0;
 791 }
 792
 793 /*
 794  * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw)
 795  * which looks like following
 796  *
 797  *  0000000000415500 <_init>:
 798  *    415500:       sub    $0x8,%rsp
 799  *    415504:       mov    0x2f5ad5(%rip),%rax        # 70afe0 <_DYNAMIC+0x2f8>
 800  *    41550b:       test   %rax,%rax
 801  *    41550e:       je     415515 <_init+0x15>
 802  *    415510:       callq  416e70 <__gmon_start__@plt>
 803  *    415515:       add    $0x8,%rsp
 804  *    415519:       retq
 805  *
 806  * it will be parsed and saved into struct disasm_line as
 807  *  <offset>       <name>  <ops.raw>
 808  *
 809  * The offset will be a relative offset from the start of the symbol and -1
 810  * means that it's not a disassembly line so should be treated differently.
 811  * The ops.raw part will be parsed further according to type of the instruction.
 812  */
 813 static int symbol__parse_objdump_line(struct symbol *sym, struct map *map,
 814                                       FILE *file, size_t privsize,
 815                                       int *line_nr)
 816 {
 817         struct annotation *notes = symbol__annotation(sym);
 818         struct disasm_line *dl;
 819         char *line = NULL, *parsed_line, *tmp, *tmp2, *c;
 820         size_t line_len;
 821         s64 line_ip, offset = -1;
 822         regmatch_t match[2];
 823
 824         if (getline(&line, &line_len, file) < 0)
 825                 return -1;
 826
 827         if (!line)
 828                 return -1;
 829
 830         while (line_len != 0 && isspace(line[line_len - 1]))
 831                 line[--line_len] = '\0';
 832
 833         c = strchr(line, '\n');
 834         if (c)
 835                 *c = 0;
 836
 837         line_ip = -1;
 838         parsed_line = line;
 839
 840         /* /filename:linenr ? Save line number and ignore. */
 841         if (regexec(&file_lineno, line, 2, match, 0) == 0) {
 842                 *line_nr = atoi(line + match[1].rm_so);
 843                 return 0;
 844         }
 845
 846         /*
 847          * Strip leading spaces:
 848          */
 849         tmp = line;
 850         while (*tmp) {
 851                 if (*tmp != ' ')
 852                         break;
 853                 tmp++;
 854         }
 855
 856         if (*tmp) {
 857                 /*
 858                  * Parse hexa addresses followed by ':'
 859                  */
 860                 line_ip = strtoull(tmp, &tmp2, 16);
 861                 if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0')
 862                         line_ip = -1;
 863         }
 864
 865         if (line_ip != -1) {
 866                 u64 start = map__rip_2objdump(map, sym->start),
 867                     end = map__rip_2objdump(map, sym->end);
 868
 869                 offset = line_ip - start;
 870                 if ((u64)line_ip < start || (u64)line_ip >= end)
 871                         offset = -1;
 872                 else
 873                         parsed_line = tmp2 + 1;
 874         }
 875
 876         dl = disasm_line__new(offset, parsed_line, privsize, *line_nr);
 877         free(line);
 878         (*line_nr)++;
 879
 880         if (dl == NULL)
 881                 return -1;
 882
 883         if (dl->ops.target.offset == UINT64_MAX)
 884                 dl->ops.target.offset = dl->ops.target.addr -
 885                                         map__rip_2objdump(map, sym->start);
 886
 887         /* kcore has no symbols, so add the call target name */
 888         if (dl->ins && ins__is_call(dl->ins) && !dl->ops.target.name) {
 889                 struct addr_map_symbol target = {
 890                         .map = map,
 891                         .addr = dl->ops.target.addr,
 892                 };
 893
 894                 if (!map_groups__find_ams(&target, NULL) &&
 895                     target.sym->start == target.al_addr)
 896                         dl->ops.target.name = strdup(target.sym->name);
 897         }
 898
 899         disasm__add(&notes->src->source, dl);
 900
 901         return 0;
 902 }
 903
 904 static __attribute__((constructor)) void symbol__init_regexpr(void)
 905 {
 906         regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED);
 907 }
 908
 909 static void delete_last_nop(struct symbol *sym)
 910 {
 911         struct annotation *notes = symbol__annotation(sym);
 912         struct list_head *list = &notes->src->source;
 913         struct disasm_line *dl;
 914
 915         while (!list_empty(list)) {
 916                 dl = list_entry(list->prev, struct disasm_line, node);
 917
 918                 if (dl->ins && dl->ins->ops) {
 919                         if (dl->ins->ops != &nop_ops)
 920                                 return;
 921                 } else {
 922                         if (!strstr(dl->line, " nop ") &&
 923                             !strstr(dl->line, " nopl ") &&
 924                             !strstr(dl->line, " nopw "))
 925                                 return;
 926                 }
 927
 928                 list_del(&dl->node);
 929                 disasm_line__free(dl);
 930         }
 931 }
 932
 933 int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize)
 934 {
 935         struct dso *dso = map->dso;
 936         char *filename = dso__build_id_filename(dso, NULL, 0);
 937         bool free_filename = true;
 938         char command[PATH_MAX * 2];
 939         FILE *file;
 940         int err = 0;
 941         char symfs_filename[PATH_MAX];
 942         struct kcore_extract kce;
 943         bool delete_extract = false;
 944         int lineno = 0;
 945
 946         if (filename)
 947                 symbol__join_symfs(symfs_filename, filename);
 948
 949         if (filename == NULL) {
 950                 if (dso->has_build_id) {
 951                         pr_err("Can't annotate %s: not enough memory\n",
 952                                sym->name);
 953                         return -ENOMEM;
 954                 }
 955                 goto fallback;
 956         } else if (dso__is_kcore(dso)) {
 957                 goto fallback;
 958         } else if (readlink(symfs_filename, command, sizeof(command)) < 0 ||
 959                    strstr(command, "[kernel.kallsyms]") ||
 960                    access(symfs_filename, R_OK)) {
 961                 free(filename);
 962 fallback:
 963                 /*
 964                  * If we don't have build-ids or the build-id file isn't in the
 965                  * cache, or is just a kallsyms file, well, lets hope that this
 966                  * DSO is the same as when 'perf record' ran.
 967                  */
 968                 filename = (char *)dso->long_name;
 969                 symbol__join_symfs(symfs_filename, filename);
 970                 free_filename = false;
 971         }
 972
 973         if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
 974             !dso__is_kcore(dso)) {
 975                 char bf[BUILD_ID_SIZE * 2 + 16] = " with build id ";
 976                 char *build_id_msg = NULL;
 977
 978                 if (dso->annotate_warned)
 979                         goto out_free_filename;
 980
 981                 if (dso->has_build_id) {
 982                         build_id__sprintf(dso->build_id,
 983                                           sizeof(dso->build_id), bf + 15);
 984                         build_id_msg = bf;
 985                 }
 986                 err = -ENOENT;
 987                 dso->annotate_warned = 1;
 988                 pr_err("Can't annotate %s:\n\n"
 989                        "No vmlinux file%s\nwas found in the path.\n\n"
 990                        "Please use:\n\n"
 991                        "  perf buildid-cache -vu vmlinux\n\n"
 992                        "or:\n\n"
 993                        "  --vmlinux vmlinux\n",
 994                        sym->name, build_id_msg ?: "");
 995                 goto out_free_filename;
 996         }
 997
 998         pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
 999                  filename, sym->name, map->unmap_ip(map, sym->start),
1000                  map->unmap_ip(map, sym->end));
1001
1002         pr_debug("annotating [%p] %30s : [%p] %30s\n",
1003                  dso, dso->long_name, sym, sym->name);
1004
1005         if (dso__is_kcore(dso)) {
1006                 kce.kcore_filename = symfs_filename;
1007                 kce.addr = map__rip_2objdump(map, sym->start);
1008                 kce.offs = sym->start;
1009                 kce.len = sym->end - sym->start;
1010                 if (!kcore_extract__create(&kce)) {
1011                         delete_extract = true;
1012                         strlcpy(symfs_filename, kce.extract_filename,
1013                                 sizeof(symfs_filename));
1014                         if (free_filename) {
1015                                 free(filename);
1016                                 free_filename = false;
1017                         }
1018                         filename = symfs_filename;
1019                 }
1020         } else if (dso__needs_decompress(dso)) {
1021                 char tmp[PATH_MAX];
1022                 struct kmod_path m;
1023                 int fd;
1024                 bool ret;
1025
1026                 if (kmod_path__parse_ext(&m, symfs_filename))
1027                         goto out_free_filename;
1028
1029                 snprintf(tmp, PATH_MAX, "/tmp/perf-kmod-XXXXXX");
1030
1031                 fd = mkstemp(tmp);
1032                 if (fd < 0) {
1033                         free(m.ext);
1034                         goto out_free_filename;
1035                 }
1036
1037                 ret = decompress_to_file(m.ext, symfs_filename, fd);
1038
1039                 free(m.ext);
1040                 close(fd);
1041
1042                 if (!ret)
1043                         goto out_free_filename;
1044
1045                 strcpy(symfs_filename, tmp);
1046         }
1047
1048         snprintf(command, sizeof(command),
1049                  "%s %s%s --start-address=0x%016" PRIx64
1050                  " --stop-address=0x%016" PRIx64
1051                  " -l -d %s %s -C %s 2>/dev/null|grep -v %s|expand",
1052                  objdump_path ? objdump_path : "objdump",
1053                  disassembler_style ? "-M " : "",
1054                  disassembler_style ? disassembler_style : "",
1055                  map__rip_2objdump(map, sym->start),
1056                  map__rip_2objdump(map, sym->end),
1057                  symbol_conf.annotate_asm_raw ? "" : "--no-show-raw",
1058                  symbol_conf.annotate_src ? "-S" : "",
1059                  symfs_filename, filename);
1060
1061         pr_debug("Executing: %s\n", command);
1062
1063         file = popen(command, "r");
1064         if (!file)
1065                 goto out_remove_tmp;
1066
1067         while (!feof(file))
1068                 if (symbol__parse_objdump_line(sym, map, file, privsize,
1069                             &lineno) < 0)
1070                         break;
1071
1072         /*
1073          * kallsyms does not have symbol sizes so there may a nop at the end.
1074          * Remove it.
1075          */
1076         if (dso__is_kcore(dso))
1077                 delete_last_nop(sym);
1078
1079         pclose(file);
1080
1081 out_remove_tmp:
1082         if (dso__needs_decompress(dso))
1083                 unlink(symfs_filename);
1084 out_free_filename:
1085         if (delete_extract)
1086                 kcore_extract__delete(&kce);
1087         if (free_filename)
1088                 free(filename);
1089         return err;
1090 }
1091
1092 static void insert_source_line(struct rb_root *root, struct source_line *src_line)
1093 {
1094         struct source_line *iter;
1095         struct rb_node **p = &root->rb_node;
1096         struct rb_node *parent = NULL;
1097         int i, ret;
1098
1099         while (*p != NULL) {
1100                 parent = *p;
1101                 iter = rb_entry(parent, struct source_line, node);
1102
1103                 ret = strcmp(iter->path, src_line->path);
1104                 if (ret == 0) {
1105                         for (i = 0; i < src_line->nr_pcnt; i++)
1106                                 iter->p[i].percent_sum += src_line->p[i].percent;
1107                         return;
1108                 }
1109
1110                 if (ret < 0)
1111                         p = &(*p)->rb_left;
1112                 else
1113                         p = &(*p)->rb_right;
1114         }
1115
1116         for (i = 0; i < src_line->nr_pcnt; i++)
1117                 src_line->p[i].percent_sum = src_line->p[i].percent;
1118
1119         rb_link_node(&src_line->node, parent, p);
1120         rb_insert_color(&src_line->node, root);
1121 }
1122
1123 static int cmp_source_line(struct source_line *a, struct source_line *b)
1124 {
1125         int i;
1126
1127         for (i = 0; i < a->nr_pcnt; i++) {
1128                 if (a->p[i].percent_sum == b->p[i].percent_sum)
1129                         continue;
1130                 return a->p[i].percent_sum > b->p[i].percent_sum;
1131         }
1132
1133         return 0;
1134 }
1135
1136 static void __resort_source_line(struct rb_root *root, struct source_line *src_line)
1137 {
1138         struct source_line *iter;
1139         struct rb_node **p = &root->rb_node;
1140         struct rb_node *parent = NULL;
1141
1142         while (*p != NULL) {
1143                 parent = *p;
1144                 iter = rb_entry(parent, struct source_line, node);
1145
1146                 if (cmp_source_line(src_line, iter))
1147                         p = &(*p)->rb_left;
1148                 else
1149                         p = &(*p)->rb_right;
1150         }
1151
1152         rb_link_node(&src_line->node, parent, p);
1153         rb_insert_color(&src_line->node, root);
1154 }
1155
1156 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
1157 {
1158         struct source_line *src_line;
1159         struct rb_node *node;
1160
1161         node = rb_first(src_root);
1162         while (node) {
1163                 struct rb_node *next;
1164
1165                 src_line = rb_entry(node, struct source_line, node);
1166                 next = rb_next(node);
1167                 rb_erase(node, src_root);
1168
1169                 __resort_source_line(dest_root, src_line);
1170                 node = next;
1171         }
1172 }
1173
1174 static void symbol__free_source_line(struct symbol *sym, int len)
1175 {
1176         struct annotation *notes = symbol__annotation(sym);
1177         struct source_line *src_line = notes->src->lines;
1178         size_t sizeof_src_line;
1179         int i;
1180
1181         sizeof_src_line = sizeof(*src_line) +
1182                           (sizeof(src_line->p) * (src_line->nr_pcnt - 1));
1183
1184         for (i = 0; i < len; i++) {
1185                 free_srcline(src_line->path);
1186                 src_line = (void *)src_line + sizeof_src_line;
1187         }
1188
1189         zfree(&notes->src->lines);
1190 }
1191
1192 /* Get the filename:line for the colored entries */
1193 static int symbol__get_source_line(struct symbol *sym, struct map *map,
1194                                    struct perf_evsel *evsel,
1195                                    struct rb_root *root, int len)
1196 {
1197         u64 start;
1198         int i, k;
1199         int evidx = evsel->idx;
1200         struct source_line *src_line;
1201         struct annotation *notes = symbol__annotation(sym);
1202         struct sym_hist *h = annotation__histogram(notes, evidx);
1203         struct rb_root tmp_root = RB_ROOT;
1204         int nr_pcnt = 1;
1205         u64 h_sum = h->sum;
1206         size_t sizeof_src_line = sizeof(struct source_line);
1207
1208         if (perf_evsel__is_group_event(evsel)) {
1209                 for (i = 1; i < evsel->nr_members; i++) {
1210                         h = annotation__histogram(notes, evidx + i);
1211                         h_sum += h->sum;
1212                 }
1213                 nr_pcnt = evsel->nr_members;
1214                 sizeof_src_line += (nr_pcnt - 1) * sizeof(src_line->p);
1215         }
1216
1217         if (!h_sum)
1218                 return 0;
1219
1220         src_line = notes->src->lines = calloc(len, sizeof_src_line);
1221         if (!notes->src->lines)
1222                 return -1;
1223
1224         start = map__rip_2objdump(map, sym->start);
1225
1226         for (i = 0; i < len; i++) {
1227                 u64 offset;
1228                 double percent_max = 0.0;
1229
1230                 src_line->nr_pcnt = nr_pcnt;
1231
1232                 for (k = 0; k < nr_pcnt; k++) {
1233                         h = annotation__histogram(notes, evidx + k);
1234                         src_line->p[k].percent = 100.0 * h->addr[i] / h->sum;
1235
1236                         if (src_line->p[k].percent > percent_max)
1237                                 percent_max = src_line->p[k].percent;
1238                 }
1239
1240                 if (percent_max <= 0.5)
1241                         goto next;
1242
1243                 offset = start + i;
1244                 src_line->path = get_srcline(map->dso, offset, NULL, false);
1245                 insert_source_line(&tmp_root, src_line);
1246
1247         next:
1248                 src_line = (void *)src_line + sizeof_src_line;
1249         }
1250
1251         resort_source_line(root, &tmp_root);
1252         return 0;
1253 }
1254
1255 static void print_summary(struct rb_root *root, const char *filename)
1256 {
1257         struct source_line *src_line;
1258         struct rb_node *node;
1259
1260         printf("\nSorted summary for file %s\n", filename);
1261         printf("----------------------------------------------\n\n");
1262
1263         if (RB_EMPTY_ROOT(root)) {
1264                 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
1265                 return;
1266         }
1267
1268         node = rb_first(root);
1269         while (node) {
1270                 double percent, percent_max = 0.0;
1271                 const char *color;
1272                 char *path;
1273                 int i;
1274
1275                 src_line = rb_entry(node, struct source_line, node);
1276                 for (i = 0; i < src_line->nr_pcnt; i++) {
1277                         percent = src_line->p[i].percent_sum;
1278                         color = get_percent_color(percent);
1279                         color_fprintf(stdout, color, " %7.2f", percent);
1280
1281                         if (percent > percent_max)
1282                                 percent_max = percent;
1283                 }
1284
1285                 path = src_line->path;
1286                 color = get_percent_color(percent_max);
1287                 color_fprintf(stdout, color, " %s\n", path);
1288
1289                 node = rb_next(node);
1290         }
1291 }
1292
1293 static void symbol__annotate_hits(struct symbol *sym, struct perf_evsel *evsel)
1294 {
1295         struct annotation *notes = symbol__annotation(sym);
1296         struct sym_hist *h = annotation__histogram(notes, evsel->idx);
1297         u64 len = symbol__size(sym), offset;
1298
1299         for (offset = 0; offset < len; ++offset)
1300                 if (h->addr[offset] != 0)
1301                         printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
1302                                sym->start + offset, h->addr[offset]);
1303         printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->sum", h->sum);
1304 }
1305
1306 int symbol__annotate_printf(struct symbol *sym, struct map *map,
1307                             struct perf_evsel *evsel, bool full_paths,
1308                             int min_pcnt, int max_lines, int context)
1309 {
1310         struct dso *dso = map->dso;
1311         char *filename;
1312         const char *d_filename;
1313         const char *evsel_name = perf_evsel__name(evsel);
1314         struct annotation *notes = symbol__annotation(sym);
1315         struct disasm_line *pos, *queue = NULL;
1316         u64 start = map__rip_2objdump(map, sym->start);
1317         int printed = 2, queue_len = 0;
1318         int more = 0;
1319         u64 len;
1320         int width = 8;
1321         int namelen, evsel_name_len, graph_dotted_len;
1322
1323         filename = strdup(dso->long_name);
1324         if (!filename)
1325                 return -ENOMEM;
1326
1327         if (full_paths)
1328                 d_filename = filename;
1329         else
1330                 d_filename = basename(filename);
1331
1332         len = symbol__size(sym);
1333         namelen = strlen(d_filename);
1334         evsel_name_len = strlen(evsel_name);
1335
1336         if (perf_evsel__is_group_event(evsel))
1337                 width *= evsel->nr_members;
1338
1339         printf(" %-*.*s|        Source code & Disassembly of %s for %s\n",
1340                width, width, "Percent", d_filename, evsel_name);
1341
1342         graph_dotted_len = width + namelen + evsel_name_len;
1343         printf("-%-*.*s-----------------------------------------\n",
1344                graph_dotted_len, graph_dotted_len, graph_dotted_line);
1345
1346         if (verbose)
1347                 symbol__annotate_hits(sym, evsel);
1348
1349         list_for_each_entry(pos, &notes->src->source, node) {
1350                 if (context && queue == NULL) {
1351                         queue = pos;
1352                         queue_len = 0;
1353                 }
1354
1355                 switch (disasm_line__print(pos, sym, start, evsel, len,
1356                                             min_pcnt, printed, max_lines,
1357                                             queue)) {
1358                 case 0:
1359                         ++printed;
1360                         if (context) {
1361                                 printed += queue_len;
1362                                 queue = NULL;
1363                                 queue_len = 0;
1364                         }
1365                         break;
1366                 case 1:
1367                         /* filtered by max_lines */
1368                         ++more;
1369                         break;
1370                 case -1:
1371                 default:
1372                         /*
1373                          * Filtered by min_pcnt or non IP lines when
1374                          * context != 0
1375                          */
1376                         if (!context)
1377                                 break;
1378                         if (queue_len == context)
1379                                 queue = list_entry(queue->node.next, typeof(*queue), node);
1380                         else
1381                                 ++queue_len;
1382                         break;
1383                 }
1384         }
1385
1386         free(filename);
1387
1388         return more;
1389 }
1390
1391 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
1392 {
1393         struct annotation *notes = symbol__annotation(sym);
1394         struct sym_hist *h = annotation__histogram(notes, evidx);
1395
1396         memset(h, 0, notes->src->sizeof_sym_hist);
1397 }
1398
1399 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
1400 {
1401         struct annotation *notes = symbol__annotation(sym);
1402         struct sym_hist *h = annotation__histogram(notes, evidx);
1403         int len = symbol__size(sym), offset;
1404
1405         h->sum = 0;
1406         for (offset = 0; offset < len; ++offset) {
1407                 h->addr[offset] = h->addr[offset] * 7 / 8;
1408                 h->sum += h->addr[offset];
1409         }
1410 }
1411
1412 void disasm__purge(struct list_head *head)
1413 {
1414         struct disasm_line *pos, *n;
1415
1416         list_for_each_entry_safe(pos, n, head, node) {
1417                 list_del(&pos->node);
1418                 disasm_line__free(pos);
1419         }
1420 }
1421
1422 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
1423 {
1424         size_t printed;
1425
1426         if (dl->offset == -1)
1427                 return fprintf(fp, "%s\n", dl->line);
1428
1429         printed = fprintf(fp, "%#" PRIx64 " %s", dl->offset, dl->name);
1430
1431         if (dl->ops.raw[0] != '\0') {
1432                 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
1433                                    dl->ops.raw);
1434         }
1435
1436         return printed + fprintf(fp, "\n");
1437 }
1438
1439 size_t disasm__fprintf(struct list_head *head, FILE *fp)
1440 {
1441         struct disasm_line *pos;
1442         size_t printed = 0;
1443
1444         list_for_each_entry(pos, head, node)
1445                 printed += disasm_line__fprintf(pos, fp);
1446
1447         return printed;
1448 }
1449
1450 int symbol__tty_annotate(struct symbol *sym, struct map *map,
1451                          struct perf_evsel *evsel, bool print_lines,
1452                          bool full_paths, int min_pcnt, int max_lines)
1453 {
1454         struct dso *dso = map->dso;
1455         struct rb_root source_line = RB_ROOT;
1456         u64 len;
1457
1458         if (symbol__annotate(sym, map, 0) < 0)
1459                 return -1;
1460
1461         len = symbol__size(sym);
1462
1463         if (print_lines) {
1464                 symbol__get_source_line(sym, map, evsel, &source_line, len);
1465                 print_summary(&source_line, dso->long_name);
1466         }
1467
1468         symbol__annotate_printf(sym, map, evsel, full_paths,
1469                                 min_pcnt, max_lines, 0);
1470         if (print_lines)
1471                 symbol__free_source_line(sym, len);
1472
1473         disasm__purge(&symbol__annotation(sym)->src->source);
1474
1475         return 0;
1476 }
1477
1478 int hist_entry__annotate(struct hist_entry *he, size_t privsize)
1479 {
1480         return symbol__annotate(he->ms.sym, he->ms.map, privsize);
1481 }
1482
1483 bool ui__has_annotation(void)
1484 {
1485         return use_browser == 1 && sort__has_sym;
1486 }