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