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 #ifdef __arm__
  69         if (strchr(name, '+'))
  70                 return -1;
  71 #endif
  72
  73         tok = strchr(name, '>');
  74         if (tok == NULL)
  75                 return -1;
  76
  77         *tok = '\0';
  78         ops->target.name = strdup(name);
  79         *tok = '>';
  80
  81         return ops->target.name == NULL ? -1 : 0;
  82
  83 indirect_call:
  84         tok = strchr(endptr, '(');
  85         if (tok != NULL) {
  86                 ops->target.addr = 0;
  87                 return 0;
  88         }
  89
  90         tok = strchr(endptr, '*');
  91         if (tok == NULL)
  92                 return -1;
  93
  94         ops->target.addr = strtoull(tok + 1, NULL, 16);
  95         return 0;
  96 }
  97
  98 static int call__scnprintf(struct ins *ins, char *bf, size_t size,
  99                            struct ins_operands *ops)
 100 {
 101         if (ops->target.name)
 102                 return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->target.name);
 103
 104         if (ops->target.addr == 0)
 105                 return ins__raw_scnprintf(ins, bf, size, ops);
 106
 107         return scnprintf(bf, size, "%-6.6s *%" PRIx64, ins->name, ops->target.addr);
 108 }
 109
 110 static struct ins_ops call_ops = {
 111         .parse     = call__parse,
 112         .scnprintf = call__scnprintf,
 113 };
 114
 115 bool ins__is_call(const struct ins *ins)
 116 {
 117         return ins->ops == &call_ops;
 118 }
 119
 120 static int jump__parse(struct ins_operands *ops)
 121 {
 122         const char *s = strchr(ops->raw, '+');
 123
 124         ops->target.addr = strtoull(ops->raw, NULL, 16);
 125
 126         if (s++ != NULL)
 127                 ops->target.offset = strtoull(s, NULL, 16);
 128         else
 129                 ops->target.offset = UINT64_MAX;
 130
 131         return 0;
 132 }
 133
 134 static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
 135                            struct ins_operands *ops)
 136 {
 137         return scnprintf(bf, size, "%-6.6s %" PRIx64, ins->name, ops->target.offset);
 138 }
 139
 140 static struct ins_ops jump_ops = {
 141         .parse     = jump__parse,
 142         .scnprintf = jump__scnprintf,
 143 };
 144
 145 bool ins__is_jump(const struct ins *ins)
 146 {
 147         return ins->ops == &jump_ops;
 148 }
 149
 150 static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep)
 151 {
 152         char *endptr, *name, *t;
 153
 154         if (strstr(raw, "(%rip)") == NULL)
 155                 return 0;
 156
 157         *addrp = strtoull(comment, &endptr, 16);
 158         name = strchr(endptr, '<');
 159         if (name == NULL)
 160                 return -1;
 161
 162         name++;
 163
 164         t = strchr(name, '>');
 165         if (t == NULL)
 166                 return 0;
 167
 168         *t = '\0';
 169         *namep = strdup(name);
 170         *t = '>';
 171
 172         return 0;
 173 }
 174
 175 static int lock__parse(struct ins_operands *ops)
 176 {
 177         char *name;
 178
 179         ops->locked.ops = zalloc(sizeof(*ops->locked.ops));
 180         if (ops->locked.ops == NULL)
 181                 return 0;
 182
 183         if (disasm_line__parse(ops->raw, &name, &ops->locked.ops->raw) < 0)
 184                 goto out_free_ops;
 185
 186         ops->locked.ins = ins__find(name);
 187         free(name);
 188
 189         if (ops->locked.ins == NULL)
 190                 goto out_free_ops;
 191
 192         if (!ops->locked.ins->ops)
 193                 return 0;
 194
 195         if (ops->locked.ins->ops->parse &&
 196             ops->locked.ins->ops->parse(ops->locked.ops) < 0)
 197                 goto out_free_ops;
 198
 199         return 0;
 200
 201 out_free_ops:
 202         zfree(&ops->locked.ops);
 203         return 0;
 204 }
 205
 206 static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
 207                            struct ins_operands *ops)
 208 {
 209         int printed;
 210
 211         if (ops->locked.ins == NULL)
 212                 return ins__raw_scnprintf(ins, bf, size, ops);
 213
 214         printed = scnprintf(bf, size, "%-6.6s ", ins->name);
 215         return printed + ins__scnprintf(ops->locked.ins, bf + printed,
 216                                         size - printed, ops->locked.ops);
 217 }
 218
 219 static void lock__delete(struct ins_operands *ops)
 220 {
 221         struct ins *ins = ops->locked.ins;
 222
 223         if (ins && ins->ops->free)
 224                 ins->ops->free(ops->locked.ops);
 225         else
 226                 ins__delete(ops->locked.ops);
 227
 228         zfree(&ops->locked.ops);
 229         zfree(&ops->target.raw);
 230         zfree(&ops->target.name);
 231 }
 232
 233 static struct ins_ops lock_ops = {
 234         .free      = lock__delete,
 235         .parse     = lock__parse,
 236         .scnprintf = lock__scnprintf,
 237 };
 238
 239 static int mov__parse(struct ins_operands *ops)
 240 {
 241         char *s = strchr(ops->raw, ','), *target, *comment, prev;
 242
 243         if (s == NULL)
 244                 return -1;
 245
 246         *s = '\0';
 247         ops->source.raw = strdup(ops->raw);
 248         *s = ',';
 249
 250         if (ops->source.raw == NULL)
 251                 return -1;
 252
 253         target = ++s;
 254 #ifdef __arm__
 255         comment = strchr(s, ';');
 256 #else
 257         comment = strchr(s, '#');
 258 #endif
 259
 260         if (comment != NULL)
 261                 s = comment - 1;
 262         else
 263                 s = strchr(s, '\0') - 1;
 264
 265         while (s > target && isspace(s[0]))
 266                 --s;
 267         s++;
 268         prev = *s;
 269         *s = '\0';
 270
 271         ops->target.raw = strdup(target);
 272         *s = prev;
 273
 274         if (ops->target.raw == NULL)
 275                 goto out_free_source;
 276
 277         if (comment == NULL)
 278                 return 0;
 279
 280         while (comment[0] != '\0' && isspace(comment[0]))
 281                 ++comment;
 282
 283         comment__symbol(ops->source.raw, comment, &ops->source.addr, &ops->source.name);
 284         comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);
 285
 286         return 0;
 287
 288 out_free_source:
 289         zfree(&ops->source.raw);
 290         return -1;
 291 }
 292
 293 static int mov__scnprintf(struct ins *ins, char *bf, size_t size,
 294                            struct ins_operands *ops)
 295 {
 296         return scnprintf(bf, size, "%-6.6s %s,%s", ins->name,
 297                          ops->source.name ?: ops->source.raw,
 298                          ops->target.name ?: ops->target.raw);
 299 }
 300
 301 static struct ins_ops mov_ops = {
 302         .parse     = mov__parse,
 303         .scnprintf = mov__scnprintf,
 304 };
 305
 306 static int dec__parse(struct ins_operands *ops)
 307 {
 308         char *target, *comment, *s, prev;
 309
 310         target = s = ops->raw;
 311
 312         while (s[0] != '\0' && !isspace(s[0]))
 313                 ++s;
 314         prev = *s;
 315         *s = '\0';
 316
 317         ops->target.raw = strdup(target);
 318         *s = prev;
 319
 320         if (ops->target.raw == NULL)
 321                 return -1;
 322
 323         comment = strchr(s, '#');
 324         if (comment == NULL)
 325                 return 0;
 326
 327         while (comment[0] != '\0' && isspace(comment[0]))
 328                 ++comment;
 329
 330         comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);
 331
 332         return 0;
 333 }
 334
 335 static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
 336                            struct ins_operands *ops)
 337 {
 338         return scnprintf(bf, size, "%-6.6s %s", ins->name,
 339                          ops->target.name ?: ops->target.raw);
 340 }
 341
 342 static struct ins_ops dec_ops = {
 343         .parse     = dec__parse,
 344         .scnprintf = dec__scnprintf,
 345 };
 346
 347 static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size,
 348                           struct ins_operands *ops __maybe_unused)
 349 {
 350         return scnprintf(bf, size, "%-6.6s", "nop");
 351 }
 352
 353 static struct ins_ops nop_ops = {
 354         .scnprintf = nop__scnprintf,
 355 };
 356
 357 static struct ins_ops ret_ops = {
 358         .scnprintf = ins__raw_scnprintf,
 359 };
 360
 361 bool ins__is_ret(const struct ins *ins)
 362 {
 363         return ins->ops == &ret_ops;
 364 }
 365
 366 static struct ins instructions[] = {
 367         { .name = "add",   .ops  = &mov_ops, },
 368         { .name = "addl",  .ops  = &mov_ops, },
 369         { .name = "addq",  .ops  = &mov_ops, },
 370         { .name = "addw",  .ops  = &mov_ops, },
 371         { .name = "and",   .ops  = &mov_ops, },
 372 #ifdef __arm__
 373         { .name = "b",     .ops  = &jump_ops, }, // might also be a call
 374         { .name = "bcc",   .ops  = &jump_ops, },
 375         { .name = "bcs",   .ops  = &jump_ops, },
 376         { .name = "beq",   .ops  = &jump_ops, },
 377         { .name = "bge",   .ops  = &jump_ops, },
 378         { .name = "bgt",   .ops  = &jump_ops, },
 379         { .name = "bhi",   .ops  = &jump_ops, },
 380         { .name = "bl",    .ops  = &call_ops, },
 381         { .name = "bls",   .ops  = &jump_ops, },
 382         { .name = "blt",   .ops  = &jump_ops, },
 383         { .name = "blx",   .ops  = &call_ops, },
 384         { .name = "bne",   .ops  = &jump_ops, },
 385 #endif
 386         { .name = "bts",   .ops  = &mov_ops, },
 387         { .name = "call",  .ops  = &call_ops, },
 388         { .name = "callq", .ops  = &call_ops, },
 389         { .name = "cmp",   .ops  = &mov_ops, },
 390         { .name = "cmpb",  .ops  = &mov_ops, },
 391         { .name = "cmpl",  .ops  = &mov_ops, },
 392         { .name = "cmpq",  .ops  = &mov_ops, },
 393         { .name = "cmpw",  .ops  = &mov_ops, },
 394         { .name = "cmpxch", .ops  = &mov_ops, },
 395         { .name = "dec",   .ops  = &dec_ops, },
 396         { .name = "decl",  .ops  = &dec_ops, },
 397         { .name = "imul",  .ops  = &mov_ops, },
 398         { .name = "inc",   .ops  = &dec_ops, },
 399         { .name = "incl",  .ops  = &dec_ops, },
 400         { .name = "ja",    .ops  = &jump_ops, },
 401         { .name = "jae",   .ops  = &jump_ops, },
 402         { .name = "jb",    .ops  = &jump_ops, },
 403         { .name = "jbe",   .ops  = &jump_ops, },
 404         { .name = "jc",    .ops  = &jump_ops, },
 405         { .name = "jcxz",  .ops  = &jump_ops, },
 406         { .name = "je",    .ops  = &jump_ops, },
 407         { .name = "jecxz", .ops  = &jump_ops, },
 408         { .name = "jg",    .ops  = &jump_ops, },
 409         { .name = "jge",   .ops  = &jump_ops, },
 410         { .name = "jl",    .ops  = &jump_ops, },
 411         { .name = "jle",   .ops  = &jump_ops, },
 412         { .name = "jmp",   .ops  = &jump_ops, },
 413         { .name = "jmpq",  .ops  = &jump_ops, },
 414         { .name = "jna",   .ops  = &jump_ops, },
 415         { .name = "jnae",  .ops  = &jump_ops, },
 416         { .name = "jnb",   .ops  = &jump_ops, },
 417         { .name = "jnbe",  .ops  = &jump_ops, },
 418         { .name = "jnc",   .ops  = &jump_ops, },
 419         { .name = "jne",   .ops  = &jump_ops, },
 420         { .name = "jng",   .ops  = &jump_ops, },
 421         { .name = "jnge",  .ops  = &jump_ops, },
 422         { .name = "jnl",   .ops  = &jump_ops, },
 423         { .name = "jnle",  .ops  = &jump_ops, },
 424         { .name = "jno",   .ops  = &jump_ops, },
 425         { .name = "jnp",   .ops  = &jump_ops, },
 426         { .name = "jns",   .ops  = &jump_ops, },
 427         { .name = "jnz",   .ops  = &jump_ops, },
 428         { .name = "jo",    .ops  = &jump_ops, },
 429         { .name = "jp",    .ops  = &jump_ops, },
 430         { .name = "jpe",   .ops  = &jump_ops, },
 431         { .name = "jpo",   .ops  = &jump_ops, },
 432         { .name = "jrcxz", .ops  = &jump_ops, },
 433         { .name = "js",    .ops  = &jump_ops, },
 434         { .name = "jz",    .ops  = &jump_ops, },
 435         { .name = "lea",   .ops  = &mov_ops, },
 436         { .name = "lock",  .ops  = &lock_ops, },
 437         { .name = "mov",   .ops  = &mov_ops, },
 438         { .name = "movb",  .ops  = &mov_ops, },
 439         { .name = "movdqa",.ops  = &mov_ops, },
 440         { .name = "movl",  .ops  = &mov_ops, },
 441         { .name = "movq",  .ops  = &mov_ops, },
 442         { .name = "movslq", .ops  = &mov_ops, },
 443         { .name = "movzbl", .ops  = &mov_ops, },
 444         { .name = "movzwl", .ops  = &mov_ops, },
 445         { .name = "nop",   .ops  = &nop_ops, },
 446         { .name = "nopl",  .ops  = &nop_ops, },
 447         { .name = "nopw",  .ops  = &nop_ops, },
 448         { .name = "or",    .ops  = &mov_ops, },
 449         { .name = "orl",   .ops  = &mov_ops, },
 450         { .name = "test",  .ops  = &mov_ops, },
 451         { .name = "testb", .ops  = &mov_ops, },
 452         { .name = "testl", .ops  = &mov_ops, },
 453         { .name = "xadd",  .ops  = &mov_ops, },
 454         { .name = "xbeginl", .ops  = &jump_ops, },
 455         { .name = "xbeginq", .ops  = &jump_ops, },
 456         { .name = "retq",  .ops  = &ret_ops, },
 457 };
 458
 459 static int ins__key_cmp(const void *name, const void *insp)
 460 {
 461         const struct ins *ins = insp;
 462
 463         return strcmp(name, ins->name);
 464 }
 465
 466 static int ins__cmp(const void *a, const void *b)
 467 {
 468         const struct ins *ia = a;
 469         const struct ins *ib = b;
 470
 471         return strcmp(ia->name, ib->name);
 472 }
 473
 474 static void ins__sort(void)
 475 {
 476         const int nmemb = ARRAY_SIZE(instructions);
 477
 478         qsort(instructions, nmemb, sizeof(struct ins), ins__cmp);
 479 }
 480
 481 static struct ins *ins__find(const char *name)
 482 {
 483         const int nmemb = ARRAY_SIZE(instructions);
 484         static bool sorted;
 485
 486         if (!sorted) {
 487                 ins__sort();
 488                 sorted = true;
 489         }
 490
 491         return bsearch(name, instructions, nmemb, sizeof(struct ins), ins__key_cmp);
 492 }
 493
 494 int symbol__annotate_init(struct map *map __maybe_unused, struct symbol *sym)
 495 {
 496         struct annotation *notes = symbol__annotation(sym);
 497         pthread_mutex_init(&notes->lock, NULL);
 498         return 0;
 499 }
 500
 501 int symbol__alloc_hist(struct symbol *sym)
 502 {
 503         struct annotation *notes = symbol__annotation(sym);
 504         const size_t size = symbol__size(sym);
 505         size_t sizeof_sym_hist;
 506
 507         /* Check for overflow when calculating sizeof_sym_hist */
 508         if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(u64))
 509                 return -1;
 510
 511         sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(u64));
 512
 513         /* Check for overflow in zalloc argument */
 514         if (sizeof_sym_hist > (SIZE_MAX - sizeof(*notes->src))
 515                                 / symbol_conf.nr_events)
 516                 return -1;
 517
 518         notes->src = zalloc(sizeof(*notes->src) + symbol_conf.nr_events * sizeof_sym_hist);
 519         if (notes->src == NULL)
 520                 return -1;
 521         notes->src->sizeof_sym_hist = sizeof_sym_hist;
 522         notes->src->nr_histograms   = symbol_conf.nr_events;
 523         INIT_LIST_HEAD(&notes->src->source);
 524         return 0;
 525 }
 526
 527 /* The cycles histogram is lazily allocated. */
 528 static int symbol__alloc_hist_cycles(struct symbol *sym)
 529 {
 530         struct annotation *notes = symbol__annotation(sym);
 531         const size_t size = symbol__size(sym);
 532
 533         notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist));
 534         if (notes->src->cycles_hist == NULL)
 535                 return -1;
 536         return 0;
 537 }
 538
 539 void symbol__annotate_zero_histograms(struct symbol *sym)
 540 {
 541         struct annotation *notes = symbol__annotation(sym);
 542
 543         pthread_mutex_lock(&notes->lock);
 544         if (notes->src != NULL) {
 545                 memset(notes->src->histograms, 0,
 546                        notes->src->nr_histograms * notes->src->sizeof_sym_hist);
 547                 if (notes->src->cycles_hist)
 548                         memset(notes->src->cycles_hist, 0,
 549                                 symbol__size(sym) * sizeof(struct cyc_hist));
 550         }
 551         pthread_mutex_unlock(&notes->lock);
 552 }
 553
 554 static int __symbol__account_cycles(struct annotation *notes,
 555                                     u64 start,
 556                                     unsigned offset, unsigned cycles,
 557                                     unsigned have_start)
 558 {
 559         struct cyc_hist *ch;
 560
 561         ch = notes->src->cycles_hist;
 562         /*
 563          * For now we can only account one basic block per
 564          * final jump. But multiple could be overlapping.
 565          * Always account the longest one. So when
 566          * a shorter one has been already seen throw it away.
 567          *
 568          * We separately always account the full cycles.
 569          */
 570         ch[offset].num_aggr++;
 571         ch[offset].cycles_aggr += cycles;
 572
 573         if (!have_start && ch[offset].have_start)
 574                 return 0;
 575         if (ch[offset].num) {
 576                 if (have_start && (!ch[offset].have_start ||
 577                                    ch[offset].start > start)) {
 578                         ch[offset].have_start = 0;
 579                         ch[offset].cycles = 0;
 580                         ch[offset].num = 0;
 581                         if (ch[offset].reset < 0xffff)
 582                                 ch[offset].reset++;
 583                 } else if (have_start &&
 584                            ch[offset].start < start)
 585                         return 0;
 586         }
 587         ch[offset].have_start = have_start;
 588         ch[offset].start = start;
 589         ch[offset].cycles += cycles;
 590         ch[offset].num++;
 591         return 0;
 592 }
 593
 594 static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
 595                                       struct annotation *notes, int evidx, u64 addr)
 596 {
 597         unsigned offset;
 598         struct sym_hist *h;
 599
 600         pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr));
 601
 602         if (addr < sym->start || addr >= sym->end) {
 603                 pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n",
 604                        __func__, __LINE__, sym->name, sym->start, addr, sym->end);
 605                 return -ERANGE;
 606         }
 607
 608         offset = addr - sym->start;
 609         h = annotation__histogram(notes, evidx);
 610         h->sum++;
 611         h->addr[offset]++;
 612
 613         pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64
 614                   ", evidx=%d] => %" PRIu64 "\n", sym->start, sym->name,
 615                   addr, addr - sym->start, evidx, h->addr[offset]);
 616         return 0;
 617 }
 618
 619 static struct annotation *symbol__get_annotation(struct symbol *sym, bool cycles)
 620 {
 621         struct annotation *notes = symbol__annotation(sym);
 622
 623         if (notes->src == NULL) {
 624                 if (symbol__alloc_hist(sym) < 0)
 625                         return NULL;
 626         }
 627         if (!notes->src->cycles_hist && cycles) {
 628                 if (symbol__alloc_hist_cycles(sym) < 0)
 629                         return NULL;
 630         }
 631         return notes;
 632 }
 633
 634 static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
 635                                     int evidx, u64 addr)
 636 {
 637         struct annotation *notes;
 638
 639         if (sym == NULL)
 640                 return 0;
 641         notes = symbol__get_annotation(sym, false);
 642         if (notes == NULL)
 643                 return -ENOMEM;
 644         return __symbol__inc_addr_samples(sym, map, notes, evidx, addr);
 645 }
 646
 647 static int symbol__account_cycles(u64 addr, u64 start,
 648                                   struct symbol *sym, unsigned cycles)
 649 {
 650         struct annotation *notes;
 651         unsigned offset;
 652
 653         if (sym == NULL)
 654                 return 0;
 655         notes = symbol__get_annotation(sym, true);
 656         if (notes == NULL)
 657                 return -ENOMEM;
 658         if (addr < sym->start || addr >= sym->end)
 659                 return -ERANGE;
 660
 661         if (start) {
 662                 if (start < sym->start || start >= sym->end)
 663                         return -ERANGE;
 664                 if (start >= addr)
 665                         start = 0;
 666         }
 667         offset = addr - sym->start;
 668         return __symbol__account_cycles(notes,
 669                                         start ? start - sym->start : 0,
 670                                         offset, cycles,
 671                                         !!start);
 672 }
 673
 674 int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
 675                                     struct addr_map_symbol *start,
 676                                     unsigned cycles)
 677 {
 678         u64 saddr = 0;
 679         int err;
 680
 681         if (!cycles)
 682                 return 0;
 683
 684         /*
 685          * Only set start when IPC can be computed. We can only
 686          * compute it when the basic block is completely in a single
 687          * function.
 688          * Special case the case when the jump is elsewhere, but
 689          * it starts on the function start.
 690          */
 691         if (start &&
 692                 (start->sym == ams->sym ||
 693                  (ams->sym &&
 694                    start->addr == ams->sym->start + ams->map->start)))
 695                 saddr = start->al_addr;
 696         if (saddr == 0)
 697                 pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n",
 698                         ams->addr,
 699                         start ? start->addr : 0,
 700                         ams->sym ? ams->sym->start + ams->map->start : 0,
 701                         saddr);
 702         err = symbol__account_cycles(ams->al_addr, saddr, ams->sym, cycles);
 703         if (err)
 704                 pr_debug2("account_cycles failed %d\n", err);
 705         return err;
 706 }
 707
 708 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, int evidx)
 709 {
 710         return symbol__inc_addr_samples(ams->sym, ams->map, evidx, ams->al_addr);
 711 }
 712
 713 int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 ip)
 714 {
 715         return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evidx, ip);
 716 }
 717
 718 static void disasm_line__init_ins(struct disasm_line *dl)
 719 {
 720         dl->ins = ins__find(dl->name);
 721
 722         if (dl->ins == NULL)
 723                 return;
 724
 725         if (!dl->ins->ops)
 726                 return;
 727
 728         if (dl->ins->ops->parse && dl->ins->ops->parse(&dl->ops) < 0)
 729                 dl->ins = NULL;
 730 }
 731
 732 static int disasm_line__parse(char *line, char **namep, char **rawp)
 733 {
 734         char *name = line, tmp;
 735
 736         while (isspace(name[0]))
 737                 ++name;
 738
 739         if (name[0] == '\0')
 740                 return -1;
 741
 742         *rawp = name + 1;
 743
 744         while ((*rawp)[0] != '\0' && !isspace((*rawp)[0]))
 745                 ++*rawp;
 746
 747         tmp = (*rawp)[0];
 748         (*rawp)[0] = '\0';
 749         *namep = strdup(name);
 750
 751         if (*namep == NULL)
 752                 goto out_free_name;
 753
 754         (*rawp)[0] = tmp;
 755
 756         if ((*rawp)[0] != '\0') {
 757                 (*rawp)++;
 758                 while (isspace((*rawp)[0]))
 759                         ++(*rawp);
 760         }
 761
 762         return 0;
 763
 764 out_free_name:
 765         zfree(namep);
 766         return -1;
 767 }
 768
 769 static struct disasm_line *disasm_line__new(s64 offset, char *line,
 770                                         size_t privsize, int line_nr)
 771 {
 772         struct disasm_line *dl = zalloc(sizeof(*dl) + privsize);
 773
 774         if (dl != NULL) {
 775                 dl->offset = offset;
 776                 dl->line = strdup(line);
 777                 dl->line_nr = line_nr;
 778                 if (dl->line == NULL)
 779                         goto out_delete;
 780
 781                 if (offset != -1) {
 782                         if (disasm_line__parse(dl->line, &dl->name, &dl->ops.raw) < 0)
 783                                 goto out_free_line;
 784
 785                         disasm_line__init_ins(dl);
 786                 }
 787         }
 788
 789         return dl;
 790
 791 out_free_line:
 792         zfree(&dl->line);
 793 out_delete:
 794         free(dl);
 795         return NULL;
 796 }
 797
 798 void disasm_line__free(struct disasm_line *dl)
 799 {
 800         zfree(&dl->line);
 801         zfree(&dl->name);
 802         if (dl->ins && dl->ins->ops->free)
 803                 dl->ins->ops->free(&dl->ops);
 804         else
 805                 ins__delete(&dl->ops);
 806         free(dl);
 807 }
 808
 809 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw)
 810 {
 811         if (raw || !dl->ins)
 812                 return scnprintf(bf, size, "%-6.6s %s", dl->name, dl->ops.raw);
 813
 814         return ins__scnprintf(dl->ins, bf, size, &dl->ops);
 815 }
 816
 817 static void disasm__add(struct list_head *head, struct disasm_line *line)
 818 {
 819         list_add_tail(&line->node, head);
 820 }
 821
 822 struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disasm_line *pos)
 823 {
 824         list_for_each_entry_continue(pos, head, node)
 825                 if (pos->offset >= 0)
 826                         return pos;
 827
 828         return NULL;
 829 }
 830
 831 double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset,
 832                             s64 end, const char **path, u64 *nr_samples)
 833 {
 834         struct source_line *src_line = notes->src->lines;
 835         double percent = 0.0;
 836         *nr_samples = 0;
 837
 838         if (src_line) {
 839                 size_t sizeof_src_line = sizeof(*src_line) +
 840                                 sizeof(src_line->samples) * (src_line->nr_pcnt - 1);
 841
 842                 while (offset < end) {
 843                         src_line = (void *)notes->src->lines +
 844                                         (sizeof_src_line * offset);
 845
 846                         if (*path == NULL)
 847                                 *path = src_line->path;
 848
 849                         percent += src_line->samples[evidx].percent;
 850                         *nr_samples += src_line->samples[evidx].nr;
 851                         offset++;
 852                 }
 853         } else {
 854                 struct sym_hist *h = annotation__histogram(notes, evidx);
 855                 unsigned int hits = 0;
 856
 857                 while (offset < end)
 858                         hits += h->addr[offset++];
 859
 860                 if (h->sum) {
 861                         *nr_samples = hits;
 862                         percent = 100.0 * hits / h->sum;
 863                 }
 864         }
 865
 866         return percent;
 867 }
 868
 869 static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 start,
 870                       struct perf_evsel *evsel, u64 len, int min_pcnt, int printed,
 871                       int max_lines, struct disasm_line *queue)
 872 {
 873         static const char *prev_line;
 874         static const char *prev_color;
 875
 876         if (dl->offset != -1) {
 877                 const char *path = NULL;
 878                 u64 nr_samples;
 879                 double percent, max_percent = 0.0;
 880                 double *ppercents = &percent;
 881                 u64 *psamples = &nr_samples;
 882                 int i, nr_percent = 1;
 883                 const char *color;
 884                 struct annotation *notes = symbol__annotation(sym);
 885                 s64 offset = dl->offset;
 886                 const u64 addr = start + offset;
 887                 struct disasm_line *next;
 888
 889                 next = disasm__get_next_ip_line(&notes->src->source, dl);
 890
 891                 if (perf_evsel__is_group_event(evsel)) {
 892                         nr_percent = evsel->nr_members;
 893                         ppercents = calloc(nr_percent, sizeof(double));
 894                         psamples = calloc(nr_percent, sizeof(u64));
 895                         if (ppercents == NULL || psamples == NULL) {
 896                                 return -1;
 897                         }
 898                 }
 899
 900                 for (i = 0; i < nr_percent; i++) {
 901                         percent = disasm__calc_percent(notes,
 902                                         notes->src->lines ? i : evsel->idx + i,
 903                                         offset,
 904                                         next ? next->offset : (s64) len,
 905                                         &path, &nr_samples);
 906
 907                         ppercents[i] = percent;
 908                         psamples[i] = nr_samples;
 909                         if (percent > max_percent)
 910                                 max_percent = percent;
 911                 }
 912
 913                 if (max_percent < min_pcnt)
 914                         return -1;
 915
 916                 if (max_lines && printed >= max_lines)
 917                         return 1;
 918
 919                 if (queue != NULL) {
 920                         list_for_each_entry_from(queue, &notes->src->source, node) {
 921                                 if (queue == dl)
 922                                         break;
 923                                 disasm_line__print(queue, sym, start, evsel, len,
 924                                                     0, 0, 1, NULL);
 925                         }
 926                 }
 927
 928                 color = get_percent_color(max_percent);
 929
 930                 /*
 931                  * Also color the filename and line if needed, with
 932                  * the same color than the percentage. Don't print it
 933                  * twice for close colored addr with the same filename:line
 934                  */
 935                 if (path) {
 936                         if (!prev_line || strcmp(prev_line, path)
 937                                        || color != prev_color) {
 938                                 color_fprintf(stdout, color, " %s", path);
 939                                 prev_line = path;
 940                                 prev_color = color;
 941                         }
 942                 }
 943
 944                 for (i = 0; i < nr_percent; i++) {
 945                         percent = ppercents[i];
 946                         nr_samples = psamples[i];
 947                         color = get_percent_color(percent);
 948
 949                         if (symbol_conf.show_total_period)
 950                                 color_fprintf(stdout, color, " %7" PRIu64,
 951                                               nr_samples);
 952                         else
 953                                 color_fprintf(stdout, color, " %7.2f", percent);
 954                 }
 955
 956                 printf(" :      ");
 957                 color_fprintf(stdout, PERF_COLOR_MAGENTA, "  %" PRIx64 ":", addr);
 958                 color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", dl->line);
 959
 960                 if (ppercents != &percent)
 961                         free(ppercents);
 962
 963                 if (psamples != &nr_samples)
 964                         free(psamples);
 965
 966         } else if (max_lines && printed >= max_lines)
 967                 return 1;
 968         else {
 969                 int width = 8;
 970
 971                 if (queue)
 972                         return -1;
 973
 974                 if (perf_evsel__is_group_event(evsel))
 975                         width *= evsel->nr_members;
 976
 977                 if (!*dl->line)
 978                         printf(" %*s:\n", width, " ");
 979                 else
 980                         printf(" %*s:   %s\n", width, " ", dl->line);
 981         }
 982
 983         return 0;
 984 }
 985
 986 /*
 987  * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw)
 988  * which looks like following
 989  *
 990  *  0000000000415500 <_init>:
 991  *    415500:       sub    $0x8,%rsp
 992  *    415504:       mov    0x2f5ad5(%rip),%rax        # 70afe0 <_DYNAMIC+0x2f8>
 993  *    41550b:       test   %rax,%rax
 994  *    41550e:       je     415515 <_init+0x15>
 995  *    415510:       callq  416e70 <__gmon_start__@plt>
 996  *    415515:       add    $0x8,%rsp
 997  *    415519:       retq
 998  *
 999  * it will be parsed and saved into struct disasm_line as
1000  *  <offset>       <name>  <ops.raw>
1001  *
1002  * The offset will be a relative offset from the start of the symbol and -1
1003  * means that it's not a disassembly line so should be treated differently.
1004  * The ops.raw part will be parsed further according to type of the instruction.
1005  */
1006 static int symbol__parse_objdump_line(struct symbol *sym, struct map *map,
1007                                       FILE *file, size_t privsize,
1008                                       int *line_nr)
1009 {
1010         struct annotation *notes = symbol__annotation(sym);
1011         struct disasm_line *dl;
1012         char *line = NULL, *parsed_line, *tmp, *tmp2, *c;
1013         size_t line_len;
1014         s64 line_ip, offset = -1;
1015         regmatch_t match[2];
1016
1017         if (getline(&line, &line_len, file) < 0)
1018                 return -1;
1019
1020         if (!line)
1021                 return -1;
1022
1023         while (line_len != 0 && isspace(line[line_len - 1]))
1024                 line[--line_len] = '\0';
1025
1026         c = strchr(line, '\n');
1027         if (c)
1028                 *c = 0;
1029
1030         line_ip = -1;
1031         parsed_line = line;
1032
1033         /* /filename:linenr ? Save line number and ignore. */
1034         if (regexec(&file_lineno, line, 2, match, 0) == 0) {
1035                 *line_nr = atoi(line + match[1].rm_so);
1036                 return 0;
1037         }
1038
1039         /*
1040          * Strip leading spaces:
1041          */
1042         tmp = line;
1043         while (*tmp) {
1044                 if (*tmp != ' ')
1045                         break;
1046                 tmp++;
1047         }
1048
1049         if (*tmp) {
1050                 /*
1051                  * Parse hexa addresses followed by ':'
1052                  */
1053                 line_ip = strtoull(tmp, &tmp2, 16);
1054                 if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0')
1055                         line_ip = -1;
1056         }
1057
1058         if (line_ip != -1) {
1059                 u64 start = map__rip_2objdump(map, sym->start),
1060                     end = map__rip_2objdump(map, sym->end);
1061
1062                 offset = line_ip - start;
1063                 if ((u64)line_ip < start || (u64)line_ip >= end)
1064                         offset = -1;
1065                 else
1066                         parsed_line = tmp2 + 1;
1067         }
1068
1069         dl = disasm_line__new(offset, parsed_line, privsize, *line_nr);
1070         free(line);
1071         (*line_nr)++;
1072
1073         if (dl == NULL)
1074                 return -1;
1075
1076         if (dl->ops.target.offset == UINT64_MAX)
1077                 dl->ops.target.offset = dl->ops.target.addr -
1078                                         map__rip_2objdump(map, sym->start);
1079
1080         /* kcore has no symbols, so add the call target name */
1081         if (dl->ins && ins__is_call(dl->ins) && !dl->ops.target.name) {
1082                 struct addr_map_symbol target = {
1083                         .map = map,
1084                         .addr = dl->ops.target.addr,
1085                 };
1086
1087                 if (!map_groups__find_ams(&target, NULL) &&
1088                     target.sym->start == target.al_addr)
1089                         dl->ops.target.name = strdup(target.sym->name);
1090         }
1091
1092         disasm__add(&notes->src->source, dl);
1093
1094         return 0;
1095 }
1096
1097 static __attribute__((constructor)) void symbol__init_regexpr(void)
1098 {
1099         regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED);
1100 }
1101
1102 static void delete_last_nop(struct symbol *sym)
1103 {
1104         struct annotation *notes = symbol__annotation(sym);
1105         struct list_head *list = &notes->src->source;
1106         struct disasm_line *dl;
1107
1108         while (!list_empty(list)) {
1109                 dl = list_entry(list->prev, struct disasm_line, node);
1110
1111                 if (dl->ins && dl->ins->ops) {
1112                         if (dl->ins->ops != &nop_ops)
1113                                 return;
1114                 } else {
1115                         if (!strstr(dl->line, " nop ") &&
1116                             !strstr(dl->line, " nopl ") &&
1117                             !strstr(dl->line, " nopw "))
1118                                 return;
1119                 }
1120
1121                 list_del(&dl->node);
1122                 disasm_line__free(dl);
1123         }
1124 }
1125
1126 int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize)
1127 {
1128         struct dso *dso = map->dso;
1129         char *filename = dso__build_id_filename(dso, NULL, 0);
1130         bool free_filename = true;
1131         char command[PATH_MAX * 2];
1132         FILE *file;
1133         int err = 0;
1134         char symfs_filename[PATH_MAX];
1135         struct kcore_extract kce;
1136         bool delete_extract = false;
1137         int lineno = 0;
1138         int nline;
1139
1140         if (filename)
1141                 symbol__join_symfs(symfs_filename, filename);
1142
1143         if (filename == NULL) {
1144                 if (dso->has_build_id) {
1145                         pr_err("Can't annotate %s: not enough memory\n",
1146                                sym->name);
1147                         return -ENOMEM;
1148                 }
1149                 goto fallback;
1150         } else if (dso__is_kcore(dso)) {
1151                 goto fallback;
1152         } else if (readlink(symfs_filename, command, sizeof(command)) < 0 ||
1153                    strstr(command, DSO__NAME_KALLSYMS) ||
1154                    access(symfs_filename, R_OK)) {
1155                 free(filename);
1156 fallback:
1157                 /*
1158                  * If we don't have build-ids or the build-id file isn't in the
1159                  * cache, or is just a kallsyms file, well, lets hope that this
1160                  * DSO is the same as when 'perf record' ran.
1161                  */
1162                 filename = (char *)dso->long_name;
1163                 symbol__join_symfs(symfs_filename, filename);
1164                 free_filename = false;
1165         }
1166
1167         if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
1168             !dso__is_kcore(dso)) {
1169                 char bf[SBUILD_ID_SIZE + 15] = " with build id ";
1170                 char *build_id_msg = NULL;
1171
1172                 if (dso->annotate_warned)
1173                         goto out_free_filename;
1174
1175                 if (dso->has_build_id) {
1176                         build_id__sprintf(dso->build_id,
1177                                           sizeof(dso->build_id), bf + 15);
1178                         build_id_msg = bf;
1179                 }
1180                 err = -ENOENT;
1181                 dso->annotate_warned = 1;
1182                 pr_err("Can't annotate %s:\n\n"
1183                        "No vmlinux file%s\nwas found in the path.\n\n"
1184                        "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n"
1185                        "Please use:\n\n"
1186                        "  perf buildid-cache -vu vmlinux\n\n"
1187                        "or:\n\n"
1188                        "  --vmlinux vmlinux\n",
1189                        sym->name, build_id_msg ?: "");
1190                 goto out_free_filename;
1191         }
1192
1193         pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
1194                  filename, sym->name, map->unmap_ip(map, sym->start),
1195                  map->unmap_ip(map, sym->end));
1196
1197         pr_debug("annotating [%p] %30s : [%p] %30s\n",
1198                  dso, dso->long_name, sym, sym->name);
1199
1200         if (dso__is_kcore(dso)) {
1201                 kce.kcore_filename = symfs_filename;
1202                 kce.addr = map__rip_2objdump(map, sym->start);
1203                 kce.offs = sym->start;
1204                 kce.len = sym->end - sym->start;
1205                 if (!kcore_extract__create(&kce)) {
1206                         delete_extract = true;
1207                         strlcpy(symfs_filename, kce.extract_filename,
1208                                 sizeof(symfs_filename));
1209                         if (free_filename) {
1210                                 free(filename);
1211                                 free_filename = false;
1212                         }
1213                         filename = symfs_filename;
1214                 }
1215         } else if (dso__needs_decompress(dso)) {
1216                 char tmp[PATH_MAX];
1217                 struct kmod_path m;
1218                 int fd;
1219                 bool ret;
1220
1221                 if (kmod_path__parse_ext(&m, symfs_filename))
1222                         goto out_free_filename;
1223
1224                 snprintf(tmp, PATH_MAX, "/tmp/perf-kmod-XXXXXX");
1225
1226                 fd = mkstemp(tmp);
1227                 if (fd < 0) {
1228                         free(m.ext);
1229                         goto out_free_filename;
1230                 }
1231
1232                 ret = decompress_to_file(m.ext, symfs_filename, fd);
1233
1234                 if (ret)
1235                         pr_err("Cannot decompress %s %s\n", m.ext, symfs_filename);
1236
1237                 free(m.ext);
1238                 close(fd);
1239
1240                 if (!ret)
1241                         goto out_free_filename;
1242
1243                 strcpy(symfs_filename, tmp);
1244         }
1245
1246         snprintf(command, sizeof(command),
1247                  "%s %s%s --start-address=0x%016" PRIx64
1248                  " --stop-address=0x%016" PRIx64
1249                  " -l -d %s %s -C %s 2>/dev/null|grep -v %s|expand",
1250                  objdump_path ? objdump_path : "objdump",
1251                  disassembler_style ? "-M " : "",
1252                  disassembler_style ? disassembler_style : "",
1253                  map__rip_2objdump(map, sym->start),
1254                  map__rip_2objdump(map, sym->end),
1255                  symbol_conf.annotate_asm_raw ? "" : "--no-show-raw",
1256                  symbol_conf.annotate_src ? "-S" : "",
1257                  symfs_filename, filename);
1258
1259         pr_debug("Executing: %s\n", command);
1260
1261         file = popen(command, "r");
1262         if (!file) {
1263                 pr_err("Failure running %s\n", command);
1264                 /*
1265                  * If we were using debug info should retry with
1266                  * original binary.
1267                  */
1268                 goto out_remove_tmp;
1269         }
1270
1271         nline = 0;
1272         while (!feof(file)) {
1273                 if (symbol__parse_objdump_line(sym, map, file, privsize,
1274                             &lineno) < 0)
1275                         break;
1276                 nline++;
1277         }
1278
1279         if (nline == 0)
1280                 pr_err("No output from %s\n", command);
1281
1282         /*
1283          * kallsyms does not have symbol sizes so there may a nop at the end.
1284          * Remove it.
1285          */
1286         if (dso__is_kcore(dso))
1287                 delete_last_nop(sym);
1288
1289         pclose(file);
1290
1291 out_remove_tmp:
1292         if (dso__needs_decompress(dso))
1293                 unlink(symfs_filename);
1294 out_free_filename:
1295         if (delete_extract)
1296                 kcore_extract__delete(&kce);
1297         if (free_filename)
1298                 free(filename);
1299         return err;
1300 }
1301
1302 static void insert_source_line(struct rb_root *root, struct source_line *src_line)
1303 {
1304         struct source_line *iter;
1305         struct rb_node **p = &root->rb_node;
1306         struct rb_node *parent = NULL;
1307         int i, ret;
1308
1309         while (*p != NULL) {
1310                 parent = *p;
1311                 iter = rb_entry(parent, struct source_line, node);
1312
1313                 ret = strcmp(iter->path, src_line->path);
1314                 if (ret == 0) {
1315                         for (i = 0; i < src_line->nr_pcnt; i++)
1316                                 iter->samples[i].percent_sum += src_line->samples[i].percent;
1317                         return;
1318                 }
1319
1320                 if (ret < 0)
1321                         p = &(*p)->rb_left;
1322                 else
1323                         p = &(*p)->rb_right;
1324         }
1325
1326         for (i = 0; i < src_line->nr_pcnt; i++)
1327                 src_line->samples[i].percent_sum = src_line->samples[i].percent;
1328
1329         rb_link_node(&src_line->node, parent, p);
1330         rb_insert_color(&src_line->node, root);
1331 }
1332
1333 static int cmp_source_line(struct source_line *a, struct source_line *b)
1334 {
1335         int i;
1336
1337         for (i = 0; i < a->nr_pcnt; i++) {
1338                 if (a->samples[i].percent_sum == b->samples[i].percent_sum)
1339                         continue;
1340                 return a->samples[i].percent_sum > b->samples[i].percent_sum;
1341         }
1342
1343         return 0;
1344 }
1345
1346 static void __resort_source_line(struct rb_root *root, struct source_line *src_line)
1347 {
1348         struct source_line *iter;
1349         struct rb_node **p = &root->rb_node;
1350         struct rb_node *parent = NULL;
1351
1352         while (*p != NULL) {
1353                 parent = *p;
1354                 iter = rb_entry(parent, struct source_line, node);
1355
1356                 if (cmp_source_line(src_line, iter))
1357                         p = &(*p)->rb_left;
1358                 else
1359                         p = &(*p)->rb_right;
1360         }
1361
1362         rb_link_node(&src_line->node, parent, p);
1363         rb_insert_color(&src_line->node, root);
1364 }
1365
1366 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
1367 {
1368         struct source_line *src_line;
1369         struct rb_node *node;
1370
1371         node = rb_first(src_root);
1372         while (node) {
1373                 struct rb_node *next;
1374
1375                 src_line = rb_entry(node, struct source_line, node);
1376                 next = rb_next(node);
1377                 rb_erase(node, src_root);
1378
1379                 __resort_source_line(dest_root, src_line);
1380                 node = next;
1381         }
1382 }
1383
1384 static void symbol__free_source_line(struct symbol *sym, int len)
1385 {
1386         struct annotation *notes = symbol__annotation(sym);
1387         struct source_line *src_line = notes->src->lines;
1388         size_t sizeof_src_line;
1389         int i;
1390
1391         sizeof_src_line = sizeof(*src_line) +
1392                           (sizeof(src_line->samples) * (src_line->nr_pcnt - 1));
1393
1394         for (i = 0; i < len; i++) {
1395                 free_srcline(src_line->path);
1396                 src_line = (void *)src_line + sizeof_src_line;
1397         }
1398
1399         zfree(&notes->src->lines);
1400 }
1401
1402 /* Get the filename:line for the colored entries */
1403 static int symbol__get_source_line(struct symbol *sym, struct map *map,
1404                                    struct perf_evsel *evsel,
1405                                    struct rb_root *root, int len)
1406 {
1407         u64 start;
1408         int i, k;
1409         int evidx = evsel->idx;
1410         struct source_line *src_line;
1411         struct annotation *notes = symbol__annotation(sym);
1412         struct sym_hist *h = annotation__histogram(notes, evidx);
1413         struct rb_root tmp_root = RB_ROOT;
1414         int nr_pcnt = 1;
1415         u64 h_sum = h->sum;
1416         size_t sizeof_src_line = sizeof(struct source_line);
1417
1418         if (perf_evsel__is_group_event(evsel)) {
1419                 for (i = 1; i < evsel->nr_members; i++) {
1420                         h = annotation__histogram(notes, evidx + i);
1421                         h_sum += h->sum;
1422                 }
1423                 nr_pcnt = evsel->nr_members;
1424                 sizeof_src_line += (nr_pcnt - 1) * sizeof(src_line->samples);
1425         }
1426
1427         if (!h_sum)
1428                 return 0;
1429
1430         src_line = notes->src->lines = calloc(len, sizeof_src_line);
1431         if (!notes->src->lines)
1432                 return -1;
1433
1434         start = map__rip_2objdump(map, sym->start);
1435
1436         for (i = 0; i < len; i++) {
1437                 u64 offset;
1438                 double percent_max = 0.0;
1439
1440                 src_line->nr_pcnt = nr_pcnt;
1441
1442                 for (k = 0; k < nr_pcnt; k++) {
1443                         h = annotation__histogram(notes, evidx + k);
1444                         src_line->samples[k].percent = 100.0 * h->addr[i] / h->sum;
1445
1446                         if (src_line->samples[k].percent > percent_max)
1447                                 percent_max = src_line->samples[k].percent;
1448                 }
1449
1450                 if (percent_max <= 0.5)
1451                         goto next;
1452
1453                 offset = start + i;
1454                 src_line->path = get_srcline(map->dso, offset, NULL, false);
1455                 insert_source_line(&tmp_root, src_line);
1456
1457         next:
1458                 src_line = (void *)src_line + sizeof_src_line;
1459         }
1460
1461         resort_source_line(root, &tmp_root);
1462         return 0;
1463 }
1464
1465 static void print_summary(struct rb_root *root, const char *filename)
1466 {
1467         struct source_line *src_line;
1468         struct rb_node *node;
1469
1470         printf("\nSorted summary for file %s\n", filename);
1471         printf("----------------------------------------------\n\n");
1472
1473         if (RB_EMPTY_ROOT(root)) {
1474                 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
1475                 return;
1476         }
1477
1478         node = rb_first(root);
1479         while (node) {
1480                 double percent, percent_max = 0.0;
1481                 const char *color;
1482                 char *path;
1483                 int i;
1484
1485                 src_line = rb_entry(node, struct source_line, node);
1486                 for (i = 0; i < src_line->nr_pcnt; i++) {
1487                         percent = src_line->samples[i].percent_sum;
1488                         color = get_percent_color(percent);
1489                         color_fprintf(stdout, color, " %7.2f", percent);
1490
1491                         if (percent > percent_max)
1492                                 percent_max = percent;
1493                 }
1494
1495                 path = src_line->path;
1496                 color = get_percent_color(percent_max);
1497                 color_fprintf(stdout, color, " %s\n", path);
1498
1499                 node = rb_next(node);
1500         }
1501 }
1502
1503 static void symbol__annotate_hits(struct symbol *sym, struct perf_evsel *evsel)
1504 {
1505         struct annotation *notes = symbol__annotation(sym);
1506         struct sym_hist *h = annotation__histogram(notes, evsel->idx);
1507         u64 len = symbol__size(sym), offset;
1508
1509         for (offset = 0; offset < len; ++offset)
1510                 if (h->addr[offset] != 0)
1511                         printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
1512                                sym->start + offset, h->addr[offset]);
1513         printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->sum", h->sum);
1514 }
1515
1516 int symbol__annotate_printf(struct symbol *sym, struct map *map,
1517                             struct perf_evsel *evsel, bool full_paths,
1518                             int min_pcnt, int max_lines, int context)
1519 {
1520         struct dso *dso = map->dso;
1521         char *filename;
1522         const char *d_filename;
1523         const char *evsel_name = perf_evsel__name(evsel);
1524         struct annotation *notes = symbol__annotation(sym);
1525         struct sym_hist *h = annotation__histogram(notes, evsel->idx);
1526         struct disasm_line *pos, *queue = NULL;
1527         u64 start = map__rip_2objdump(map, sym->start);
1528         int printed = 2, queue_len = 0;
1529         int more = 0;
1530         u64 len;
1531         int width = 8;
1532         int graph_dotted_len;
1533
1534         filename = strdup(dso->long_name);
1535         if (!filename)
1536                 return -ENOMEM;
1537
1538         if (full_paths)
1539                 d_filename = filename;
1540         else
1541                 d_filename = basename(filename);
1542
1543         len = symbol__size(sym);
1544
1545         if (perf_evsel__is_group_event(evsel))
1546                 width *= evsel->nr_members;
1547
1548         graph_dotted_len = printf(" %-*.*s|     Source code & Disassembly of %s for %s (%" PRIu64 " samples)\n",
1549                width, width, "Percent", d_filename, evsel_name, h->sum);
1550
1551         printf("%-*.*s----\n",
1552                graph_dotted_len, graph_dotted_len, graph_dotted_line);
1553
1554         if (verbose)
1555                 symbol__annotate_hits(sym, evsel);
1556
1557         list_for_each_entry(pos, &notes->src->source, node) {
1558                 if (context && queue == NULL) {
1559                         queue = pos;
1560                         queue_len = 0;
1561                 }
1562
1563                 switch (disasm_line__print(pos, sym, start, evsel, len,
1564                                             min_pcnt, printed, max_lines,
1565                                             queue)) {
1566                 case 0:
1567                         ++printed;
1568                         if (context) {
1569                                 printed += queue_len;
1570                                 queue = NULL;
1571                                 queue_len = 0;
1572                         }
1573                         break;
1574                 case 1:
1575                         /* filtered by max_lines */
1576                         ++more;
1577                         break;
1578                 case -1:
1579                 default:
1580                         /*
1581                          * Filtered by min_pcnt or non IP lines when
1582                          * context != 0
1583                          */
1584                         if (!context)
1585                                 break;
1586                         if (queue_len == context)
1587                                 queue = list_entry(queue->node.next, typeof(*queue), node);
1588                         else
1589                                 ++queue_len;
1590                         break;
1591                 }
1592         }
1593
1594         free(filename);
1595
1596         return more;
1597 }
1598
1599 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
1600 {
1601         struct annotation *notes = symbol__annotation(sym);
1602         struct sym_hist *h = annotation__histogram(notes, evidx);
1603
1604         memset(h, 0, notes->src->sizeof_sym_hist);
1605 }
1606
1607 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
1608 {
1609         struct annotation *notes = symbol__annotation(sym);
1610         struct sym_hist *h = annotation__histogram(notes, evidx);
1611         int len = symbol__size(sym), offset;
1612
1613         h->sum = 0;
1614         for (offset = 0; offset < len; ++offset) {
1615                 h->addr[offset] = h->addr[offset] * 7 / 8;
1616                 h->sum += h->addr[offset];
1617         }
1618 }
1619
1620 void disasm__purge(struct list_head *head)
1621 {
1622         struct disasm_line *pos, *n;
1623
1624         list_for_each_entry_safe(pos, n, head, node) {
1625                 list_del(&pos->node);
1626                 disasm_line__free(pos);
1627         }
1628 }
1629
1630 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
1631 {
1632         size_t printed;
1633
1634         if (dl->offset == -1)
1635                 return fprintf(fp, "%s\n", dl->line);
1636
1637         printed = fprintf(fp, "%#" PRIx64 " %s", dl->offset, dl->name);
1638
1639         if (dl->ops.raw[0] != '\0') {
1640                 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
1641                                    dl->ops.raw);
1642         }
1643
1644         return printed + fprintf(fp, "\n");
1645 }
1646
1647 size_t disasm__fprintf(struct list_head *head, FILE *fp)
1648 {
1649         struct disasm_line *pos;
1650         size_t printed = 0;
1651
1652         list_for_each_entry(pos, head, node)
1653                 printed += disasm_line__fprintf(pos, fp);
1654
1655         return printed;
1656 }
1657
1658 int symbol__tty_annotate(struct symbol *sym, struct map *map,
1659                          struct perf_evsel *evsel, bool print_lines,
1660                          bool full_paths, int min_pcnt, int max_lines)
1661 {
1662         struct dso *dso = map->dso;
1663         struct rb_root source_line = RB_ROOT;
1664         u64 len;
1665
1666         if (symbol__annotate(sym, map, 0) < 0)
1667                 return -1;
1668
1669         len = symbol__size(sym);
1670
1671         if (print_lines) {
1672                 srcline_full_filename = full_paths;
1673                 symbol__get_source_line(sym, map, evsel, &source_line, len);
1674                 print_summary(&source_line, dso->long_name);
1675         }
1676
1677         symbol__annotate_printf(sym, map, evsel, full_paths,
1678                                 min_pcnt, max_lines, 0);
1679         if (print_lines)
1680                 symbol__free_source_line(sym, len);
1681
1682         disasm__purge(&symbol__annotation(sym)->src->source);
1683
1684         return 0;
1685 }
1686
1687 bool ui__has_annotation(void)
1688 {
1689         return use_browser == 1 && perf_hpp_list.sym;
1690 }