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