tools/perf/util/annotate.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
   4  *
   5  * Parts came from builtin-annotate.c, see those files for further
   6  * copyright notes.
   7  */
   8
   9 #include <errno.h>
  10 #include <inttypes.h>
  11 #include <libgen.h>
  12 #include <stdlib.h>
  13 #include <bpf/bpf.h>
  14 #include <bpf/btf.h>
  15 #include <bpf/libbpf.h>
  16 #include <linux/btf.h>
  17 #include "util.h" // hex_width()
  18 #include "ui/ui.h"
  19 #include "sort.h"
  20 #include "build-id.h"
  21 #include "color.h"
  22 #include "config.h"
  23 #include "dso.h"
  24 #include "env.h"
  25 #include "map.h"
  26 #include "maps.h"
  27 #include "symbol.h"
  28 #include "srcline.h"
  29 #include "units.h"
  30 #include "debug.h"
  31 #include "annotate.h"
  32 #include "evsel.h"
  33 #include "evlist.h"
  34 #include "bpf-event.h"
  35 #include "block-range.h"
  36 #include "string2.h"
  37 #include "util/event.h"
  38 #include "arch/common.h"
  39 #include <regex.h>
  40 #include <pthread.h>
  41 #include <linux/bitops.h>
  42 #include <linux/kernel.h>
  43 #include <linux/string.h>
  44 #include <subcmd/parse-options.h>
  45 #include <subcmd/run-command.h>
  46
  47 /* FIXME: For the HE_COLORSET */
  48 #include "ui/browser.h"
  49
  50 /*
  51  * FIXME: Using the same values as slang.h,
  52  * but that header may not be available everywhere
  53  */
  54 #define LARROW_CHAR     ((unsigned char)',')
  55 #define RARROW_CHAR     ((unsigned char)'+')
  56 #define DARROW_CHAR     ((unsigned char)'.')
  57 #define UARROW_CHAR     ((unsigned char)'-')
  58
  59 #include <linux/ctype.h>
  60
  61 struct annotation_options annotation__default_options = {
  62         .use_offset     = true,
  63         .jump_arrows    = true,
  64         .annotate_src   = true,
  65         .offset_level   = ANNOTATION__OFFSET_JUMP_TARGETS,
  66         .percent_type   = PERCENT_PERIOD_LOCAL,
  67 };
  68
  69 static regex_t   file_lineno;
  70
  71 static struct ins_ops *ins__find(struct arch *arch, const char *name);
  72 static void ins__sort(struct arch *arch);
  73 static int disasm_line__parse(char *line, const char **namep, char **rawp);
  74
  75 struct arch {
  76         const char      *name;
  77         struct ins      *instructions;
  78         size_t          nr_instructions;
  79         size_t          nr_instructions_allocated;
  80         struct ins_ops  *(*associate_instruction_ops)(struct arch *arch, const char *name);
  81         bool            sorted_instructions;
  82         bool            initialized;
  83         void            *priv;
  84         unsigned int    model;
  85         unsigned int    family;
  86         int             (*init)(struct arch *arch, char *cpuid);
  87         bool            (*ins_is_fused)(struct arch *arch, const char *ins1,
  88                                         const char *ins2);
  89         struct          {
  90                 char comment_char;
  91                 char skip_functions_char;
  92         } objdump;
  93 };
  94
  95 static struct ins_ops call_ops;
  96 static struct ins_ops dec_ops;
  97 static struct ins_ops jump_ops;
  98 static struct ins_ops mov_ops;
  99 static struct ins_ops nop_ops;
 100 static struct ins_ops lock_ops;
 101 static struct ins_ops ret_ops;
 102
 103 static int arch__grow_instructions(struct arch *arch)
 104 {
 105         struct ins *new_instructions;
 106         size_t new_nr_allocated;
 107
 108         if (arch->nr_instructions_allocated == 0 && arch->instructions)
 109                 goto grow_from_non_allocated_table;
 110
 111         new_nr_allocated = arch->nr_instructions_allocated + 128;
 112         new_instructions = realloc(arch->instructions, new_nr_allocated * sizeof(struct ins));
 113         if (new_instructions == NULL)
 114                 return -1;
 115
 116 out_update_instructions:
 117         arch->instructions = new_instructions;
 118         arch->nr_instructions_allocated = new_nr_allocated;
 119         return 0;
 120
 121 grow_from_non_allocated_table:
 122         new_nr_allocated = arch->nr_instructions + 128;
 123         new_instructions = calloc(new_nr_allocated, sizeof(struct ins));
 124         if (new_instructions == NULL)
 125                 return -1;
 126
 127         memcpy(new_instructions, arch->instructions, arch->nr_instructions);
 128         goto out_update_instructions;
 129 }
 130
 131 static int arch__associate_ins_ops(struct arch* arch, const char *name, struct ins_ops *ops)
 132 {
 133         struct ins *ins;
 134
 135         if (arch->nr_instructions == arch->nr_instructions_allocated &&
 136             arch__grow_instructions(arch))
 137                 return -1;
 138
 139         ins = &arch->instructions[arch->nr_instructions];
 140         ins->name = strdup(name);
 141         if (!ins->name)
 142                 return -1;
 143
 144         ins->ops  = ops;
 145         arch->nr_instructions++;
 146
 147         ins__sort(arch);
 148         return 0;
 149 }
 150
 151 #include "arch/arc/annotate/instructions.c"
 152 #include "arch/arm/annotate/instructions.c"
 153 #include "arch/arm64/annotate/instructions.c"
 154 #include "arch/csky/annotate/instructions.c"
 155 #include "arch/x86/annotate/instructions.c"
 156 #include "arch/powerpc/annotate/instructions.c"
 157 #include "arch/s390/annotate/instructions.c"
 158 #include "arch/sparc/annotate/instructions.c"
 159
 160 static struct arch architectures[] = {
 161         {
 162                 .name = "arc",
 163                 .init = arc__annotate_init,
 164         },
 165         {
 166                 .name = "arm",
 167                 .init = arm__annotate_init,
 168         },
 169         {
 170                 .name = "arm64",
 171                 .init = arm64__annotate_init,
 172         },
 173         {
 174                 .name = "csky",
 175                 .init = csky__annotate_init,
 176         },
 177         {
 178                 .name = "x86",
 179                 .init = x86__annotate_init,
 180                 .instructions = x86__instructions,
 181                 .nr_instructions = ARRAY_SIZE(x86__instructions),
 182                 .ins_is_fused = x86__ins_is_fused,
 183                 .objdump =  {
 184                         .comment_char = '#',
 185                 },
 186         },
 187         {
 188                 .name = "powerpc",
 189                 .init = powerpc__annotate_init,
 190         },
 191         {
 192                 .name = "s390",
 193                 .init = s390__annotate_init,
 194                 .objdump =  {
 195                         .comment_char = '#',
 196                 },
 197         },
 198         {
 199                 .name = "sparc",
 200                 .init = sparc__annotate_init,
 201                 .objdump = {
 202                         .comment_char = '#',
 203                 },
 204         },
 205 };
 206
 207 static void ins__delete(struct ins_operands *ops)
 208 {
 209         if (ops == NULL)
 210                 return;
 211         zfree(&ops->source.raw);
 212         zfree(&ops->source.name);
 213         zfree(&ops->target.raw);
 214         zfree(&ops->target.name);
 215 }
 216
 217 static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size,
 218                               struct ins_operands *ops, int max_ins_name)
 219 {
 220         return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->raw);
 221 }
 222
 223 int ins__scnprintf(struct ins *ins, char *bf, size_t size,
 224                    struct ins_operands *ops, int max_ins_name)
 225 {
 226         if (ins->ops->scnprintf)
 227                 return ins->ops->scnprintf(ins, bf, size, ops, max_ins_name);
 228
 229         return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
 230 }
 231
 232 bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2)
 233 {
 234         if (!arch || !arch->ins_is_fused)
 235                 return false;
 236
 237         return arch->ins_is_fused(arch, ins1, ins2);
 238 }
 239
 240 static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
 241 {
 242         char *endptr, *tok, *name;
 243         struct map *map = ms->map;
 244         struct addr_map_symbol target = {
 245                 .ms = { .map = map, },
 246         };
 247
 248         ops->target.addr = strtoull(ops->raw, &endptr, 16);
 249
 250         name = strchr(endptr, '<');
 251         if (name == NULL)
 252                 goto indirect_call;
 253
 254         name++;
 255
 256         if (arch->objdump.skip_functions_char &&
 257             strchr(name, arch->objdump.skip_functions_char))
 258                 return -1;
 259
 260         tok = strchr(name, '>');
 261         if (tok == NULL)
 262                 return -1;
 263
 264         *tok = '\0';
 265         ops->target.name = strdup(name);
 266         *tok = '>';
 267
 268         if (ops->target.name == NULL)
 269                 return -1;
 270 find_target:
 271         target.addr = map__objdump_2mem(map, ops->target.addr);
 272
 273         if (maps__find_ams(ms->maps, &target) == 0 &&
 274             map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr)
 275                 ops->target.sym = target.ms.sym;
 276
 277         return 0;
 278
 279 indirect_call:
 280         tok = strchr(endptr, '*');
 281         if (tok != NULL) {
 282                 endptr++;
 283
 284                 /* Indirect call can use a non-rip register and offset: callq  *0x8(%rbx).
 285                  * Do not parse such instruction.  */
 286                 if (strstr(endptr, "(%r") == NULL)
 287                         ops->target.addr = strtoull(endptr, NULL, 16);
 288         }
 289         goto find_target;
 290 }
 291
 292 static int call__scnprintf(struct ins *ins, char *bf, size_t size,
 293                            struct ins_operands *ops, int max_ins_name)
 294 {
 295         if (ops->target.sym)
 296                 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name);
 297
 298         if (ops->target.addr == 0)
 299                 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
 300
 301         if (ops->target.name)
 302                 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.name);
 303
 304         return scnprintf(bf, size, "%-*s *%" PRIx64, max_ins_name, ins->name, ops->target.addr);
 305 }
 306
 307 static struct ins_ops call_ops = {
 308         .parse     = call__parse,
 309         .scnprintf = call__scnprintf,
 310 };
 311
 312 bool ins__is_call(const struct ins *ins)
 313 {
 314         return ins->ops == &call_ops || ins->ops == &s390_call_ops;
 315 }
 316
 317 /*
 318  * Prevents from matching commas in the comment section, e.g.:
 319  * ffff200008446e70:       b.cs    ffff2000084470f4 <generic_exec_single+0x314>  // b.hs, b.nlast
 320  */
 321 static inline const char *validate_comma(const char *c, struct ins_operands *ops)
 322 {
 323         if (ops->raw_comment && c > ops->raw_comment)
 324                 return NULL;
 325
 326         return c;
 327 }
 328
 329 static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
 330 {
 331         struct map *map = ms->map;
 332         struct symbol *sym = ms->sym;
 333         struct addr_map_symbol target = {
 334                 .ms = { .map = map, },
 335         };
 336         const char *c = strchr(ops->raw, ',');
 337         u64 start, end;
 338
 339         ops->raw_comment = strchr(ops->raw, arch->objdump.comment_char);
 340         c = validate_comma(c, ops);
 341
 342         /*
 343          * Examples of lines to parse for the _cpp_lex_token@@Base
 344          * function:
 345          *
 346          * 1159e6c: jne    115aa32 <_cpp_lex_token@@Base+0xf92>
 347          * 1159e8b: jne    c469be <cpp_named_operator2name@@Base+0xa72>
 348          *
 349          * The first is a jump to an offset inside the same function,
 350          * the second is to another function, i.e. that 0xa72 is an
 351          * offset in the cpp_named_operator2name@@base function.
 352          */
 353         /*
 354          * skip over possible up to 2 operands to get to address, e.g.:
 355          * tbnz  w0, #26, ffff0000083cd190 <security_file_permission+0xd0>
 356          */
 357         if (c++ != NULL) {
 358                 ops->target.addr = strtoull(c, NULL, 16);
 359                 if (!ops->target.addr) {
 360                         c = strchr(c, ',');
 361                         c = validate_comma(c, ops);
 362                         if (c++ != NULL)
 363                                 ops->target.addr = strtoull(c, NULL, 16);
 364                 }
 365         } else {
 366                 ops->target.addr = strtoull(ops->raw, NULL, 16);
 367         }
 368
 369         target.addr = map__objdump_2mem(map, ops->target.addr);
 370         start = map->unmap_ip(map, sym->start),
 371         end = map->unmap_ip(map, sym->end);
 372
 373         ops->target.outside = target.addr < start || target.addr > end;
 374
 375         /*
 376          * FIXME: things like this in _cpp_lex_token (gcc's cc1 program):
 377
 378                 cpp_named_operator2name@@Base+0xa72
 379
 380          * Point to a place that is after the cpp_named_operator2name
 381          * boundaries, i.e.  in the ELF symbol table for cc1
 382          * cpp_named_operator2name is marked as being 32-bytes long, but it in
 383          * fact is much larger than that, so we seem to need a symbols__find()
 384          * routine that looks for >= current->start and  < next_symbol->start,
 385          * possibly just for C++ objects?
 386          *
 387          * For now lets just make some progress by marking jumps to outside the
 388          * current function as call like.
 389          *
 390          * Actual navigation will come next, with further understanding of how
 391          * the symbol searching and disassembly should be done.
 392          */
 393         if (maps__find_ams(ms->maps, &target) == 0 &&
 394             map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr)
 395                 ops->target.sym = target.ms.sym;
 396
 397         if (!ops->target.outside) {
 398                 ops->target.offset = target.addr - start;
 399                 ops->target.offset_avail = true;
 400         } else {
 401                 ops->target.offset_avail = false;
 402         }
 403
 404         return 0;
 405 }
 406
 407 static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
 408                            struct ins_operands *ops, int max_ins_name)
 409 {
 410         const char *c;
 411
 412         if (!ops->target.addr || ops->target.offset < 0)
 413                 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
 414
 415         if (ops->target.outside && ops->target.sym != NULL)
 416                 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name);
 417
 418         c = strchr(ops->raw, ',');
 419         c = validate_comma(c, ops);
 420
 421         if (c != NULL) {
 422                 const char *c2 = strchr(c + 1, ',');
 423
 424                 c2 = validate_comma(c2, ops);
 425                 /* check for 3-op insn */
 426                 if (c2 != NULL)
 427                         c = c2;
 428                 c++;
 429
 430                 /* mirror arch objdump's space-after-comma style */
 431                 if (*c == ' ')
 432                         c++;
 433         }
 434
 435         return scnprintf(bf, size, "%-*s %.*s%" PRIx64, max_ins_name,
 436                          ins->name, c ? c - ops->raw : 0, ops->raw,
 437                          ops->target.offset);
 438 }
 439
 440 static struct ins_ops jump_ops = {
 441         .parse     = jump__parse,
 442         .scnprintf = jump__scnprintf,
 443 };
 444
 445 bool ins__is_jump(const struct ins *ins)
 446 {
 447         return ins->ops == &jump_ops;
 448 }
 449
 450 static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep)
 451 {
 452         char *endptr, *name, *t;
 453
 454         if (strstr(raw, "(%rip)") == NULL)
 455                 return 0;
 456
 457         *addrp = strtoull(comment, &endptr, 16);
 458         if (endptr == comment)
 459                 return 0;
 460         name = strchr(endptr, '<');
 461         if (name == NULL)
 462                 return -1;
 463
 464         name++;
 465
 466         t = strchr(name, '>');
 467         if (t == NULL)
 468                 return 0;
 469
 470         *t = '\0';
 471         *namep = strdup(name);
 472         *t = '>';
 473
 474         return 0;
 475 }
 476
 477 static int lock__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
 478 {
 479         ops->locked.ops = zalloc(sizeof(*ops->locked.ops));
 480         if (ops->locked.ops == NULL)
 481                 return 0;
 482
 483         if (disasm_line__parse(ops->raw, &ops->locked.ins.name, &ops->locked.ops->raw) < 0)
 484                 goto out_free_ops;
 485
 486         ops->locked.ins.ops = ins__find(arch, ops->locked.ins.name);
 487
 488         if (ops->locked.ins.ops == NULL)
 489                 goto out_free_ops;
 490
 491         if (ops->locked.ins.ops->parse &&
 492             ops->locked.ins.ops->parse(arch, ops->locked.ops, ms) < 0)
 493                 goto out_free_ops;
 494
 495         return 0;
 496
 497 out_free_ops:
 498         zfree(&ops->locked.ops);
 499         return 0;
 500 }
 501
 502 static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
 503                            struct ins_operands *ops, int max_ins_name)
 504 {
 505         int printed;
 506
 507         if (ops->locked.ins.ops == NULL)
 508                 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
 509
 510         printed = scnprintf(bf, size, "%-*s ", max_ins_name, ins->name);
 511         return printed + ins__scnprintf(&ops->locked.ins, bf + printed,
 512                                         size - printed, ops->locked.ops, max_ins_name);
 513 }
 514
 515 static void lock__delete(struct ins_operands *ops)
 516 {
 517         struct ins *ins = &ops->locked.ins;
 518
 519         if (ins->ops && ins->ops->free)
 520                 ins->ops->free(ops->locked.ops);
 521         else
 522                 ins__delete(ops->locked.ops);
 523
 524         zfree(&ops->locked.ops);
 525         zfree(&ops->target.raw);
 526         zfree(&ops->target.name);
 527 }
 528
 529 static struct ins_ops lock_ops = {
 530         .free      = lock__delete,
 531         .parse     = lock__parse,
 532         .scnprintf = lock__scnprintf,
 533 };
 534
 535 static int mov__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)
 536 {
 537         char *s = strchr(ops->raw, ','), *target, *comment, prev;
 538
 539         if (s == NULL)
 540                 return -1;
 541
 542         *s = '\0';
 543         ops->source.raw = strdup(ops->raw);
 544         *s = ',';
 545
 546         if (ops->source.raw == NULL)
 547                 return -1;
 548
 549         target = ++s;
 550         comment = strchr(s, arch->objdump.comment_char);
 551
 552         if (comment != NULL)
 553                 s = comment - 1;
 554         else
 555                 s = strchr(s, '\0') - 1;
 556
 557         while (s > target && isspace(s[0]))
 558                 --s;
 559         s++;
 560         prev = *s;
 561         *s = '\0';
 562
 563         ops->target.raw = strdup(target);
 564         *s = prev;
 565
 566         if (ops->target.raw == NULL)
 567                 goto out_free_source;
 568
 569         if (comment == NULL)
 570                 return 0;
 571
 572         comment = skip_spaces(comment);
 573         comment__symbol(ops->source.raw, comment + 1, &ops->source.addr, &ops->source.name);
 574         comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name);
 575
 576         return 0;
 577
 578 out_free_source:
 579         zfree(&ops->source.raw);
 580         return -1;
 581 }
 582
 583 static int mov__scnprintf(struct ins *ins, char *bf, size_t size,
 584                            struct ins_operands *ops, int max_ins_name)
 585 {
 586         return scnprintf(bf, size, "%-*s %s,%s", max_ins_name, ins->name,
 587                          ops->source.name ?: ops->source.raw,
 588                          ops->target.name ?: ops->target.raw);
 589 }
 590
 591 static struct ins_ops mov_ops = {
 592         .parse     = mov__parse,
 593         .scnprintf = mov__scnprintf,
 594 };
 595
 596 static int dec__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)
 597 {
 598         char *target, *comment, *s, prev;
 599
 600         target = s = ops->raw;
 601
 602         while (s[0] != '\0' && !isspace(s[0]))
 603                 ++s;
 604         prev = *s;
 605         *s = '\0';
 606
 607         ops->target.raw = strdup(target);
 608         *s = prev;
 609
 610         if (ops->target.raw == NULL)
 611                 return -1;
 612
 613         comment = strchr(s, arch->objdump.comment_char);
 614         if (comment == NULL)
 615                 return 0;
 616
 617         comment = skip_spaces(comment);
 618         comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name);
 619
 620         return 0;
 621 }
 622
 623 static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
 624                            struct ins_operands *ops, int max_ins_name)
 625 {
 626         return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name,
 627                          ops->target.name ?: ops->target.raw);
 628 }
 629
 630 static struct ins_ops dec_ops = {
 631         .parse     = dec__parse,
 632         .scnprintf = dec__scnprintf,
 633 };
 634
 635 static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size,
 636                           struct ins_operands *ops __maybe_unused, int max_ins_name)
 637 {
 638         return scnprintf(bf, size, "%-*s", max_ins_name, "nop");
 639 }
 640
 641 static struct ins_ops nop_ops = {
 642         .scnprintf = nop__scnprintf,
 643 };
 644
 645 static struct ins_ops ret_ops = {
 646         .scnprintf = ins__raw_scnprintf,
 647 };
 648
 649 bool ins__is_ret(const struct ins *ins)
 650 {
 651         return ins->ops == &ret_ops;
 652 }
 653
 654 bool ins__is_lock(const struct ins *ins)
 655 {
 656         return ins->ops == &lock_ops;
 657 }
 658
 659 static int ins__key_cmp(const void *name, const void *insp)
 660 {
 661         const struct ins *ins = insp;
 662
 663         return strcmp(name, ins->name);
 664 }
 665
 666 static int ins__cmp(const void *a, const void *b)
 667 {
 668         const struct ins *ia = a;
 669         const struct ins *ib = b;
 670
 671         return strcmp(ia->name, ib->name);
 672 }
 673
 674 static void ins__sort(struct arch *arch)
 675 {
 676         const int nmemb = arch->nr_instructions;
 677
 678         qsort(arch->instructions, nmemb, sizeof(struct ins), ins__cmp);
 679 }
 680
 681 static struct ins_ops *__ins__find(struct arch *arch, const char *name)
 682 {
 683         struct ins *ins;
 684         const int nmemb = arch->nr_instructions;
 685
 686         if (!arch->sorted_instructions) {
 687                 ins__sort(arch);
 688                 arch->sorted_instructions = true;
 689         }
 690
 691         ins = bsearch(name, arch->instructions, nmemb, sizeof(struct ins), ins__key_cmp);
 692         return ins ? ins->ops : NULL;
 693 }
 694
 695 static struct ins_ops *ins__find(struct arch *arch, const char *name)
 696 {
 697         struct ins_ops *ops = __ins__find(arch, name);
 698
 699         if (!ops && arch->associate_instruction_ops)
 700                 ops = arch->associate_instruction_ops(arch, name);
 701
 702         return ops;
 703 }
 704
 705 static int arch__key_cmp(const void *name, const void *archp)
 706 {
 707         const struct arch *arch = archp;
 708
 709         return strcmp(name, arch->name);
 710 }
 711
 712 static int arch__cmp(const void *a, const void *b)
 713 {
 714         const struct arch *aa = a;
 715         const struct arch *ab = b;
 716
 717         return strcmp(aa->name, ab->name);
 718 }
 719
 720 static void arch__sort(void)
 721 {
 722         const int nmemb = ARRAY_SIZE(architectures);
 723
 724         qsort(architectures, nmemb, sizeof(struct arch), arch__cmp);
 725 }
 726
 727 static struct arch *arch__find(const char *name)
 728 {
 729         const int nmemb = ARRAY_SIZE(architectures);
 730         static bool sorted;
 731
 732         if (!sorted) {
 733                 arch__sort();
 734                 sorted = true;
 735         }
 736
 737         return bsearch(name, architectures, nmemb, sizeof(struct arch), arch__key_cmp);
 738 }
 739
 740 static struct annotated_source *annotated_source__new(void)
 741 {
 742         struct annotated_source *src = zalloc(sizeof(*src));
 743
 744         if (src != NULL)
 745                 INIT_LIST_HEAD(&src->source);
 746
 747         return src;
 748 }
 749
 750 static __maybe_unused void annotated_source__delete(struct annotated_source *src)
 751 {
 752         if (src == NULL)
 753                 return;
 754         zfree(&src->histograms);
 755         zfree(&src->cycles_hist);
 756         free(src);
 757 }
 758
 759 static int annotated_source__alloc_histograms(struct annotated_source *src,
 760                                               size_t size, int nr_hists)
 761 {
 762         size_t sizeof_sym_hist;
 763
 764         /*
 765          * Add buffer of one element for zero length symbol.
 766          * When sample is taken from first instruction of
 767          * zero length symbol, perf still resolves it and
 768          * shows symbol name in perf report and allows to
 769          * annotate it.
 770          */
 771         if (size == 0)
 772                 size = 1;
 773
 774         /* Check for overflow when calculating sizeof_sym_hist */
 775         if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(struct sym_hist_entry))
 776                 return -1;
 777
 778         sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(struct sym_hist_entry));
 779
 780         /* Check for overflow in zalloc argument */
 781         if (sizeof_sym_hist > SIZE_MAX / nr_hists)
 782                 return -1;
 783
 784         src->sizeof_sym_hist = sizeof_sym_hist;
 785         src->nr_histograms   = nr_hists;
 786         src->histograms      = calloc(nr_hists, sizeof_sym_hist) ;
 787         return src->histograms ? 0 : -1;
 788 }
 789
 790 /* The cycles histogram is lazily allocated. */
 791 static int symbol__alloc_hist_cycles(struct symbol *sym)
 792 {
 793         struct annotation *notes = symbol__annotation(sym);
 794         const size_t size = symbol__size(sym);
 795
 796         notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist));
 797         if (notes->src->cycles_hist == NULL)
 798                 return -1;
 799         return 0;
 800 }
 801
 802 void symbol__annotate_zero_histograms(struct symbol *sym)
 803 {
 804         struct annotation *notes = symbol__annotation(sym);
 805
 806         pthread_mutex_lock(&notes->lock);
 807         if (notes->src != NULL) {
 808                 memset(notes->src->histograms, 0,
 809                        notes->src->nr_histograms * notes->src->sizeof_sym_hist);
 810                 if (notes->src->cycles_hist)
 811                         memset(notes->src->cycles_hist, 0,
 812                                 symbol__size(sym) * sizeof(struct cyc_hist));
 813         }
 814         pthread_mutex_unlock(&notes->lock);
 815 }
 816
 817 static int __symbol__account_cycles(struct cyc_hist *ch,
 818                                     u64 start,
 819                                     unsigned offset, unsigned cycles,
 820                                     unsigned have_start)
 821 {
 822         /*
 823          * For now we can only account one basic block per
 824          * final jump. But multiple could be overlapping.
 825          * Always account the longest one. So when
 826          * a shorter one has been already seen throw it away.
 827          *
 828          * We separately always account the full cycles.
 829          */
 830         ch[offset].num_aggr++;
 831         ch[offset].cycles_aggr += cycles;
 832
 833         if (cycles > ch[offset].cycles_max)
 834                 ch[offset].cycles_max = cycles;
 835
 836         if (ch[offset].cycles_min) {
 837                 if (cycles && cycles < ch[offset].cycles_min)
 838                         ch[offset].cycles_min = cycles;
 839         } else
 840                 ch[offset].cycles_min = cycles;
 841
 842         if (!have_start && ch[offset].have_start)
 843                 return 0;
 844         if (ch[offset].num) {
 845                 if (have_start && (!ch[offset].have_start ||
 846                                    ch[offset].start > start)) {
 847                         ch[offset].have_start = 0;
 848                         ch[offset].cycles = 0;
 849                         ch[offset].num = 0;
 850                         if (ch[offset].reset < 0xffff)
 851                                 ch[offset].reset++;
 852                 } else if (have_start &&
 853                            ch[offset].start < start)
 854                         return 0;
 855         }
 856
 857         if (ch[offset].num < NUM_SPARKS)
 858                 ch[offset].cycles_spark[ch[offset].num] = cycles;
 859
 860         ch[offset].have_start = have_start;
 861         ch[offset].start = start;
 862         ch[offset].cycles += cycles;
 863         ch[offset].num++;
 864         return 0;
 865 }
 866
 867 static int __symbol__inc_addr_samples(struct map_symbol *ms,
 868                                       struct annotated_source *src, int evidx, u64 addr,
 869                                       struct perf_sample *sample)
 870 {
 871         struct symbol *sym = ms->sym;
 872         unsigned offset;
 873         struct sym_hist *h;
 874
 875         pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, ms->map->unmap_ip(ms->map, addr));
 876
 877         if ((addr < sym->start || addr >= sym->end) &&
 878             (addr != sym->end || sym->start != sym->end)) {
 879                 pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n",
 880                        __func__, __LINE__, sym->name, sym->start, addr, sym->end);
 881                 return -ERANGE;
 882         }
 883
 884         offset = addr - sym->start;
 885         h = annotated_source__histogram(src, evidx);
 886         if (h == NULL) {
 887                 pr_debug("%s(%d): ENOMEM! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 ", func: %d\n",
 888                          __func__, __LINE__, sym->name, sym->start, addr, sym->end, sym->type == STT_FUNC);
 889                 return -ENOMEM;
 890         }
 891         h->nr_samples++;
 892         h->addr[offset].nr_samples++;
 893         h->period += sample->period;
 894         h->addr[offset].period += sample->period;
 895
 896         pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64
 897                   ", evidx=%d] => nr_samples: %" PRIu64 ", period: %" PRIu64 "\n",
 898                   sym->start, sym->name, addr, addr - sym->start, evidx,
 899                   h->addr[offset].nr_samples, h->addr[offset].period);
 900         return 0;
 901 }
 902
 903 static struct cyc_hist *symbol__cycles_hist(struct symbol *sym)
 904 {
 905         struct annotation *notes = symbol__annotation(sym);
 906
 907         if (notes->src == NULL) {
 908                 notes->src = annotated_source__new();
 909                 if (notes->src == NULL)
 910                         return NULL;
 911                 goto alloc_cycles_hist;
 912         }
 913
 914         if (!notes->src->cycles_hist) {
 915 alloc_cycles_hist:
 916                 symbol__alloc_hist_cycles(sym);
 917         }
 918
 919         return notes->src->cycles_hist;
 920 }
 921
 922 struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists)
 923 {
 924         struct annotation *notes = symbol__annotation(sym);
 925
 926         if (notes->src == NULL) {
 927                 notes->src = annotated_source__new();
 928                 if (notes->src == NULL)
 929                         return NULL;
 930                 goto alloc_histograms;
 931         }
 932
 933         if (notes->src->histograms == NULL) {
 934 alloc_histograms:
 935                 annotated_source__alloc_histograms(notes->src, symbol__size(sym),
 936                                                    nr_hists);
 937         }
 938
 939         return notes->src;
 940 }
 941
 942 static int symbol__inc_addr_samples(struct map_symbol *ms,
 943                                     struct evsel *evsel, u64 addr,
 944                                     struct perf_sample *sample)
 945 {
 946         struct symbol *sym = ms->sym;
 947         struct annotated_source *src;
 948
 949         if (sym == NULL)
 950                 return 0;
 951         src = symbol__hists(sym, evsel->evlist->core.nr_entries);
 952         return src ? __symbol__inc_addr_samples(ms, src, evsel->idx, addr, sample) : 0;
 953 }
 954
 955 static int symbol__account_cycles(u64 addr, u64 start,
 956                                   struct symbol *sym, unsigned cycles)
 957 {
 958         struct cyc_hist *cycles_hist;
 959         unsigned offset;
 960
 961         if (sym == NULL)
 962                 return 0;
 963         cycles_hist = symbol__cycles_hist(sym);
 964         if (cycles_hist == NULL)
 965                 return -ENOMEM;
 966         if (addr < sym->start || addr >= sym->end)
 967                 return -ERANGE;
 968
 969         if (start) {
 970                 if (start < sym->start || start >= sym->end)
 971                         return -ERANGE;
 972                 if (start >= addr)
 973                         start = 0;
 974         }
 975         offset = addr - sym->start;
 976         return __symbol__account_cycles(cycles_hist,
 977                                         start ? start - sym->start : 0,
 978                                         offset, cycles,
 979                                         !!start);
 980 }
 981
 982 int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
 983                                     struct addr_map_symbol *start,
 984                                     unsigned cycles)
 985 {
 986         u64 saddr = 0;
 987         int err;
 988
 989         if (!cycles)
 990                 return 0;
 991
 992         /*
 993          * Only set start when IPC can be computed. We can only
 994          * compute it when the basic block is completely in a single
 995          * function.
 996          * Special case the case when the jump is elsewhere, but
 997          * it starts on the function start.
 998          */
 999         if (start &&
1000                 (start->ms.sym == ams->ms.sym ||
1001                  (ams->ms.sym &&
1002                    start->addr == ams->ms.sym->start + ams->ms.map->start)))
1003                 saddr = start->al_addr;
1004         if (saddr == 0)
1005                 pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n",
1006                         ams->addr,
1007                         start ? start->addr : 0,
1008                         ams->ms.sym ? ams->ms.sym->start + ams->ms.map->start : 0,
1009                         saddr);
1010         err = symbol__account_cycles(ams->al_addr, saddr, ams->ms.sym, cycles);
1011         if (err)
1012                 pr_debug2("account_cycles failed %d\n", err);
1013         return err;
1014 }
1015
1016 static unsigned annotation__count_insn(struct annotation *notes, u64 start, u64 end)
1017 {
1018         unsigned n_insn = 0;
1019         u64 offset;
1020
1021         for (offset = start; offset <= end; offset++) {
1022                 if (notes->offsets[offset])
1023                         n_insn++;
1024         }
1025         return n_insn;
1026 }
1027
1028 static void annotation__count_and_fill(struct annotation *notes, u64 start, u64 end, struct cyc_hist *ch)
1029 {
1030         unsigned n_insn;
1031         unsigned int cover_insn = 0;
1032         u64 offset;
1033
1034         n_insn = annotation__count_insn(notes, start, end);
1035         if (n_insn && ch->num && ch->cycles) {
1036                 float ipc = n_insn / ((double)ch->cycles / (double)ch->num);
1037
1038                 /* Hide data when there are too many overlaps. */
1039                 if (ch->reset >= 0x7fff)
1040                         return;
1041
1042                 for (offset = start; offset <= end; offset++) {
1043                         struct annotation_line *al = notes->offsets[offset];
1044
1045                         if (al && al->ipc == 0.0) {
1046                                 al->ipc = ipc;
1047                                 cover_insn++;
1048                         }
1049                 }
1050
1051                 if (cover_insn) {
1052                         notes->hit_cycles += ch->cycles;
1053                         notes->hit_insn += n_insn * ch->num;
1054                         notes->cover_insn += cover_insn;
1055                 }
1056         }
1057 }
1058
1059 void annotation__compute_ipc(struct annotation *notes, size_t size)
1060 {
1061         s64 offset;
1062
1063         if (!notes->src || !notes->src->cycles_hist)
1064                 return;
1065
1066         notes->total_insn = annotation__count_insn(notes, 0, size - 1);
1067         notes->hit_cycles = 0;
1068         notes->hit_insn = 0;
1069         notes->cover_insn = 0;
1070
1071         pthread_mutex_lock(&notes->lock);
1072         for (offset = size - 1; offset >= 0; --offset) {
1073                 struct cyc_hist *ch;
1074
1075                 ch = &notes->src->cycles_hist[offset];
1076                 if (ch && ch->cycles) {
1077                         struct annotation_line *al;
1078
1079                         if (ch->have_start)
1080                                 annotation__count_and_fill(notes, ch->start, offset, ch);
1081                         al = notes->offsets[offset];
1082                         if (al && ch->num_aggr) {
1083                                 al->cycles = ch->cycles_aggr / ch->num_aggr;
1084                                 al->cycles_max = ch->cycles_max;
1085                                 al->cycles_min = ch->cycles_min;
1086                         }
1087                         notes->have_cycles = true;
1088                 }
1089         }
1090         pthread_mutex_unlock(&notes->lock);
1091 }
1092
1093 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
1094                                  struct evsel *evsel)
1095 {
1096         return symbol__inc_addr_samples(&ams->ms, evsel, ams->al_addr, sample);
1097 }
1098
1099 int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample,
1100                                  struct evsel *evsel, u64 ip)
1101 {
1102         return symbol__inc_addr_samples(&he->ms, evsel, ip, sample);
1103 }
1104
1105 static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, struct map_symbol *ms)
1106 {
1107         dl->ins.ops = ins__find(arch, dl->ins.name);
1108
1109         if (!dl->ins.ops)
1110                 return;
1111
1112         if (dl->ins.ops->parse && dl->ins.ops->parse(arch, &dl->ops, ms) < 0)
1113                 dl->ins.ops = NULL;
1114 }
1115
1116 static int disasm_line__parse(char *line, const char **namep, char **rawp)
1117 {
1118         char tmp, *name = skip_spaces(line);
1119
1120         if (name[0] == '\0')
1121                 return -1;
1122
1123         *rawp = name + 1;
1124
1125         while ((*rawp)[0] != '\0' && !isspace((*rawp)[0]))
1126                 ++*rawp;
1127
1128         tmp = (*rawp)[0];
1129         (*rawp)[0] = '\0';
1130         *namep = strdup(name);
1131
1132         if (*namep == NULL)
1133                 goto out;
1134
1135         (*rawp)[0] = tmp;
1136         *rawp = strim(*rawp);
1137
1138         return 0;
1139
1140 out:
1141         return -1;
1142 }
1143
1144 struct annotate_args {
1145         struct arch               *arch;
1146         struct map_symbol         ms;
1147         struct evsel              *evsel;
1148         struct annotation_options *options;
1149         s64                       offset;
1150         char                      *line;
1151         int                       line_nr;
1152 };
1153
1154 static void annotation_line__init(struct annotation_line *al,
1155                                   struct annotate_args *args,
1156                                   int nr)
1157 {
1158         al->offset = args->offset;
1159         al->line = strdup(args->line);
1160         al->line_nr = args->line_nr;
1161         al->data_nr = nr;
1162 }
1163
1164 static void annotation_line__exit(struct annotation_line *al)
1165 {
1166         free_srcline(al->path);
1167         zfree(&al->line);
1168 }
1169
1170 static size_t disasm_line_size(int nr)
1171 {
1172         struct annotation_line *al;
1173
1174         return (sizeof(struct disasm_line) + (sizeof(al->data[0]) * nr));
1175 }
1176
1177 /*
1178  * Allocating the disasm annotation line data with
1179  * following structure:
1180  *
1181  *    -------------------------------------------
1182  *    struct disasm_line | struct annotation_line
1183  *    -------------------------------------------
1184  *
1185  * We have 'struct annotation_line' member as last member
1186  * of 'struct disasm_line' to have an easy access.
1187  */
1188 static struct disasm_line *disasm_line__new(struct annotate_args *args)
1189 {
1190         struct disasm_line *dl = NULL;
1191         int nr = 1;
1192
1193         if (evsel__is_group_event(args->evsel))
1194                 nr = args->evsel->core.nr_members;
1195
1196         dl = zalloc(disasm_line_size(nr));
1197         if (!dl)
1198                 return NULL;
1199
1200         annotation_line__init(&dl->al, args, nr);
1201         if (dl->al.line == NULL)
1202                 goto out_delete;
1203
1204         if (args->offset != -1) {
1205                 if (disasm_line__parse(dl->al.line, &dl->ins.name, &dl->ops.raw) < 0)
1206                         goto out_free_line;
1207
1208                 disasm_line__init_ins(dl, args->arch, &args->ms);
1209         }
1210
1211         return dl;
1212
1213 out_free_line:
1214         zfree(&dl->al.line);
1215 out_delete:
1216         free(dl);
1217         return NULL;
1218 }
1219
1220 void disasm_line__free(struct disasm_line *dl)
1221 {
1222         if (dl->ins.ops && dl->ins.ops->free)
1223                 dl->ins.ops->free(&dl->ops);
1224         else
1225                 ins__delete(&dl->ops);
1226         zfree(&dl->ins.name);
1227         annotation_line__exit(&dl->al);
1228         free(dl);
1229 }
1230
1231 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw, int max_ins_name)
1232 {
1233         if (raw || !dl->ins.ops)
1234                 return scnprintf(bf, size, "%-*s %s", max_ins_name, dl->ins.name, dl->ops.raw);
1235
1236         return ins__scnprintf(&dl->ins, bf, size, &dl->ops, max_ins_name);
1237 }
1238
1239 static void annotation_line__add(struct annotation_line *al, struct list_head *head)
1240 {
1241         list_add_tail(&al->node, head);
1242 }
1243
1244 struct annotation_line *
1245 annotation_line__next(struct annotation_line *pos, struct list_head *head)
1246 {
1247         list_for_each_entry_continue(pos, head, node)
1248                 if (pos->offset >= 0)
1249                         return pos;
1250
1251         return NULL;
1252 }
1253
1254 static const char *annotate__address_color(struct block_range *br)
1255 {
1256         double cov = block_range__coverage(br);
1257
1258         if (cov >= 0) {
1259                 /* mark red for >75% coverage */
1260                 if (cov > 0.75)
1261                         return PERF_COLOR_RED;
1262
1263                 /* mark dull for <1% coverage */
1264                 if (cov < 0.01)
1265                         return PERF_COLOR_NORMAL;
1266         }
1267
1268         return PERF_COLOR_MAGENTA;
1269 }
1270
1271 static const char *annotate__asm_color(struct block_range *br)
1272 {
1273         double cov = block_range__coverage(br);
1274
1275         if (cov >= 0) {
1276                 /* mark dull for <1% coverage */
1277                 if (cov < 0.01)
1278                         return PERF_COLOR_NORMAL;
1279         }
1280
1281         return PERF_COLOR_BLUE;
1282 }
1283
1284 static void annotate__branch_printf(struct block_range *br, u64 addr)
1285 {
1286         bool emit_comment = true;
1287
1288         if (!br)
1289                 return;
1290
1291 #if 1
1292         if (br->is_target && br->start == addr) {
1293                 struct block_range *branch = br;
1294                 double p;
1295
1296                 /*
1297                  * Find matching branch to our target.
1298                  */
1299                 while (!branch->is_branch)
1300                         branch = block_range__next(branch);
1301
1302                 p = 100 *(double)br->entry / branch->coverage;
1303
1304                 if (p > 0.1) {
1305                         if (emit_comment) {
1306                                 emit_comment = false;
1307                                 printf("\t#");
1308                         }
1309
1310                         /*
1311                          * The percentage of coverage joined at this target in relation
1312                          * to the next branch.
1313                          */
1314                         printf(" +%.2f%%", p);
1315                 }
1316         }
1317 #endif
1318         if (br->is_branch && br->end == addr) {
1319                 double p = 100*(double)br->taken / br->coverage;
1320
1321                 if (p > 0.1) {
1322                         if (emit_comment) {
1323                                 emit_comment = false;
1324                                 printf("\t#");
1325                         }
1326
1327                         /*
1328                          * The percentage of coverage leaving at this branch, and
1329                          * its prediction ratio.
1330                          */
1331                         printf(" -%.2f%% (p:%.2f%%)", p, 100*(double)br->pred  / br->taken);
1332                 }
1333         }
1334 }
1335
1336 static int disasm_line__print(struct disasm_line *dl, u64 start, int addr_fmt_width)
1337 {
1338         s64 offset = dl->al.offset;
1339         const u64 addr = start + offset;
1340         struct block_range *br;
1341
1342         br = block_range__find(addr);
1343         color_fprintf(stdout, annotate__address_color(br), "  %*" PRIx64 ":", addr_fmt_width, addr);
1344         color_fprintf(stdout, annotate__asm_color(br), "%s", dl->al.line);
1345         annotate__branch_printf(br, addr);
1346         return 0;
1347 }
1348
1349 static int
1350 annotation_line__print(struct annotation_line *al, struct symbol *sym, u64 start,
1351                        struct evsel *evsel, u64 len, int min_pcnt, int printed,
1352                        int max_lines, struct annotation_line *queue, int addr_fmt_width,
1353                        int percent_type)
1354 {
1355         struct disasm_line *dl = container_of(al, struct disasm_line, al);
1356         static const char *prev_line;
1357         static const char *prev_color;
1358
1359         if (al->offset != -1) {
1360                 double max_percent = 0.0;
1361                 int i, nr_percent = 1;
1362                 const char *color;
1363                 struct annotation *notes = symbol__annotation(sym);
1364
1365                 for (i = 0; i < al->data_nr; i++) {
1366                         double percent;
1367
1368                         percent = annotation_data__percent(&al->data[i],
1369                                                            percent_type);
1370
1371                         if (percent > max_percent)
1372                                 max_percent = percent;
1373                 }
1374
1375                 if (al->data_nr > nr_percent)
1376                         nr_percent = al->data_nr;
1377
1378                 if (max_percent < min_pcnt)
1379                         return -1;
1380
1381                 if (max_lines && printed >= max_lines)
1382                         return 1;
1383
1384                 if (queue != NULL) {
1385                         list_for_each_entry_from(queue, &notes->src->source, node) {
1386                                 if (queue == al)
1387                                         break;
1388                                 annotation_line__print(queue, sym, start, evsel, len,
1389                                                        0, 0, 1, NULL, addr_fmt_width,
1390                                                        percent_type);
1391                         }
1392                 }
1393
1394                 color = get_percent_color(max_percent);
1395
1396                 /*
1397                  * Also color the filename and line if needed, with
1398                  * the same color than the percentage. Don't print it
1399                  * twice for close colored addr with the same filename:line
1400                  */
1401                 if (al->path) {
1402                         if (!prev_line || strcmp(prev_line, al->path)
1403                                        || color != prev_color) {
1404                                 color_fprintf(stdout, color, " %s", al->path);
1405                                 prev_line = al->path;
1406                                 prev_color = color;
1407                         }
1408                 }
1409
1410                 for (i = 0; i < nr_percent; i++) {
1411                         struct annotation_data *data = &al->data[i];
1412                         double percent;
1413
1414                         percent = annotation_data__percent(data, percent_type);
1415                         color = get_percent_color(percent);
1416
1417                         if (symbol_conf.show_total_period)
1418                                 color_fprintf(stdout, color, " %11" PRIu64,
1419                                               data->he.period);
1420                         else if (symbol_conf.show_nr_samples)
1421                                 color_fprintf(stdout, color, " %7" PRIu64,
1422                                               data->he.nr_samples);
1423                         else
1424                                 color_fprintf(stdout, color, " %7.2f", percent);
1425                 }
1426
1427                 printf(" : ");
1428
1429                 disasm_line__print(dl, start, addr_fmt_width);
1430                 printf("\n");
1431         } else if (max_lines && printed >= max_lines)
1432                 return 1;
1433         else {
1434                 int width = symbol_conf.show_total_period ? 12 : 8;
1435
1436                 if (queue)
1437                         return -1;
1438
1439                 if (evsel__is_group_event(evsel))
1440                         width *= evsel->core.nr_members;
1441
1442                 if (!*al->line)
1443                         printf(" %*s:\n", width, " ");
1444                 else
1445                         printf(" %*s:     %*s %s\n", width, " ", addr_fmt_width, " ", al->line);
1446         }
1447
1448         return 0;
1449 }
1450
1451 /*
1452  * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw)
1453  * which looks like following
1454  *
1455  *  0000000000415500 <_init>:
1456  *    415500:       sub    $0x8,%rsp
1457  *    415504:       mov    0x2f5ad5(%rip),%rax        # 70afe0 <_DYNAMIC+0x2f8>
1458  *    41550b:       test   %rax,%rax
1459  *    41550e:       je     415515 <_init+0x15>
1460  *    415510:       callq  416e70 <__gmon_start__@plt>
1461  *    415515:       add    $0x8,%rsp
1462  *    415519:       retq
1463  *
1464  * it will be parsed and saved into struct disasm_line as
1465  *  <offset>       <name>  <ops.raw>
1466  *
1467  * The offset will be a relative offset from the start of the symbol and -1
1468  * means that it's not a disassembly line so should be treated differently.
1469  * The ops.raw part will be parsed further according to type of the instruction.
1470  */
1471 static int symbol__parse_objdump_line(struct symbol *sym,
1472                                       struct annotate_args *args,
1473                                       char *parsed_line, int *line_nr)
1474 {
1475         struct map *map = args->ms.map;
1476         struct annotation *notes = symbol__annotation(sym);
1477         struct disasm_line *dl;
1478         char *tmp;
1479         s64 line_ip, offset = -1;
1480         regmatch_t match[2];
1481
1482         /* /filename:linenr ? Save line number and ignore. */
1483         if (regexec(&file_lineno, parsed_line, 2, match, 0) == 0) {
1484                 *line_nr = atoi(parsed_line + match[1].rm_so);
1485                 return 0;
1486         }
1487
1488         /* Process hex address followed by ':'. */
1489         line_ip = strtoull(parsed_line, &tmp, 16);
1490         if (parsed_line != tmp && tmp[0] == ':' && tmp[1] != '\0') {
1491                 u64 start = map__rip_2objdump(map, sym->start),
1492                     end = map__rip_2objdump(map, sym->end);
1493
1494                 offset = line_ip - start;
1495                 if ((u64)line_ip < start || (u64)line_ip >= end)
1496                         offset = -1;
1497                 else
1498                         parsed_line = tmp + 1;
1499         }
1500
1501         args->offset  = offset;
1502         args->line    = parsed_line;
1503         args->line_nr = *line_nr;
1504         args->ms.sym  = sym;
1505
1506         dl = disasm_line__new(args);
1507         (*line_nr)++;
1508
1509         if (dl == NULL)
1510                 return -1;
1511
1512         if (!disasm_line__has_local_offset(dl)) {
1513                 dl->ops.target.offset = dl->ops.target.addr -
1514                                         map__rip_2objdump(map, sym->start);
1515                 dl->ops.target.offset_avail = true;
1516         }
1517
1518         /* kcore has no symbols, so add the call target symbol */
1519         if (dl->ins.ops && ins__is_call(&dl->ins) && !dl->ops.target.sym) {
1520                 struct addr_map_symbol target = {
1521                         .addr = dl->ops.target.addr,
1522                         .ms = { .map = map, },
1523                 };
1524
1525                 if (!maps__find_ams(args->ms.maps, &target) &&
1526                     target.ms.sym->start == target.al_addr)
1527                         dl->ops.target.sym = target.ms.sym;
1528         }
1529
1530         annotation_line__add(&dl->al, &notes->src->source);
1531
1532         return 0;
1533 }
1534
1535 static __attribute__((constructor)) void symbol__init_regexpr(void)
1536 {
1537         regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED);
1538 }
1539
1540 static void delete_last_nop(struct symbol *sym)
1541 {
1542         struct annotation *notes = symbol__annotation(sym);
1543         struct list_head *list = &notes->src->source;
1544         struct disasm_line *dl;
1545
1546         while (!list_empty(list)) {
1547                 dl = list_entry(list->prev, struct disasm_line, al.node);
1548
1549                 if (dl->ins.ops) {
1550                         if (dl->ins.ops != &nop_ops)
1551                                 return;
1552                 } else {
1553                         if (!strstr(dl->al.line, " nop ") &&
1554                             !strstr(dl->al.line, " nopl ") &&
1555                             !strstr(dl->al.line, " nopw "))
1556                                 return;
1557                 }
1558
1559                 list_del_init(&dl->al.node);
1560                 disasm_line__free(dl);
1561         }
1562 }
1563
1564 int symbol__strerror_disassemble(struct map_symbol *ms, int errnum, char *buf, size_t buflen)
1565 {
1566         struct dso *dso = ms->map->dso;
1567
1568         BUG_ON(buflen == 0);
1569
1570         if (errnum >= 0) {
1571                 str_error_r(errnum, buf, buflen);
1572                 return 0;
1573         }
1574
1575         switch (errnum) {
1576         case SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX: {
1577                 char bf[SBUILD_ID_SIZE + 15] = " with build id ";
1578                 char *build_id_msg = NULL;
1579
1580                 if (dso->has_build_id) {
1581                         build_id__sprintf(dso->build_id,
1582                                           sizeof(dso->build_id), bf + 15);
1583                         build_id_msg = bf;
1584                 }
1585                 scnprintf(buf, buflen,
1586                           "No vmlinux file%s\nwas found in the path.\n\n"
1587                           "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n"
1588                           "Please use:\n\n"
1589                           "  perf buildid-cache -vu vmlinux\n\n"
1590                           "or:\n\n"
1591                           "  --vmlinux vmlinux\n", build_id_msg ?: "");
1592         }
1593                 break;
1594         case SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF:
1595                 scnprintf(buf, buflen, "Please link with binutils's libopcode to enable BPF annotation");
1596                 break;
1597         case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP:
1598                 scnprintf(buf, buflen, "Problems with arch specific instruction name regular expressions.");
1599                 break;
1600         case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING:
1601                 scnprintf(buf, buflen, "Problems while parsing the CPUID in the arch specific initialization.");
1602                 break;
1603         case SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE:
1604                 scnprintf(buf, buflen, "Invalid BPF file: %s.", dso->long_name);
1605                 break;
1606         case SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF:
1607                 scnprintf(buf, buflen, "The %s BPF file has no BTF section, compile with -g or use pahole -J.",
1608                           dso->long_name);
1609                 break;
1610         default:
1611                 scnprintf(buf, buflen, "Internal error: Invalid %d error code\n", errnum);
1612                 break;
1613         }
1614
1615         return 0;
1616 }
1617
1618 static int dso__disassemble_filename(struct dso *dso, char *filename, size_t filename_size)
1619 {
1620         char linkname[PATH_MAX];
1621         char *build_id_filename;
1622         char *build_id_path = NULL;
1623         char *pos;
1624         int len;
1625
1626         if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
1627             !dso__is_kcore(dso))
1628                 return SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX;
1629
1630         build_id_filename = dso__build_id_filename(dso, NULL, 0, false);
1631         if (build_id_filename) {
1632                 __symbol__join_symfs(filename, filename_size, build_id_filename);
1633                 free(build_id_filename);
1634         } else {
1635                 if (dso->has_build_id)
1636                         return ENOMEM;
1637                 goto fallback;
1638         }
1639
1640         build_id_path = strdup(filename);
1641         if (!build_id_path)
1642                 return ENOMEM;
1643
1644         /*
1645          * old style build-id cache has name of XX/XXXXXXX.. while
1646          * new style has XX/XXXXXXX../{elf,kallsyms,vdso}.
1647          * extract the build-id part of dirname in the new style only.
1648          */
1649         pos = strrchr(build_id_path, '/');
1650         if (pos && strlen(pos) < SBUILD_ID_SIZE - 2)
1651                 dirname(build_id_path);
1652
1653         if (dso__is_kcore(dso))
1654                 goto fallback;
1655
1656         len = readlink(build_id_path, linkname, sizeof(linkname) - 1);
1657         if (len < 0)
1658                 goto fallback;
1659
1660         linkname[len] = '\0';
1661         if (strstr(linkname, DSO__NAME_KALLSYMS) ||
1662                 access(filename, R_OK)) {
1663 fallback:
1664                 /*
1665                  * If we don't have build-ids or the build-id file isn't in the
1666                  * cache, or is just a kallsyms file, well, lets hope that this
1667                  * DSO is the same as when 'perf record' ran.
1668                  */
1669                 __symbol__join_symfs(filename, filename_size, dso->long_name);
1670         }
1671
1672         free(build_id_path);
1673         return 0;
1674 }
1675
1676 #if defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
1677 #define PACKAGE "perf"
1678 #include <bfd.h>
1679 #include <dis-asm.h>
1680
1681 static int symbol__disassemble_bpf(struct symbol *sym,
1682                                    struct annotate_args *args)
1683 {
1684         struct annotation *notes = symbol__annotation(sym);
1685         struct annotation_options *opts = args->options;
1686         struct bpf_prog_info_linear *info_linear;
1687         struct bpf_prog_linfo *prog_linfo = NULL;
1688         struct bpf_prog_info_node *info_node;
1689         int len = sym->end - sym->start;
1690         disassembler_ftype disassemble;
1691         struct map *map = args->ms.map;
1692         struct disassemble_info info;
1693         struct dso *dso = map->dso;
1694         int pc = 0, count, sub_id;
1695         struct btf *btf = NULL;
1696         char tpath[PATH_MAX];
1697         size_t buf_size;
1698         int nr_skip = 0;
1699         char *buf;
1700         bfd *bfdf;
1701         int ret;
1702         FILE *s;
1703
1704         if (dso->binary_type != DSO_BINARY_TYPE__BPF_PROG_INFO)
1705                 return SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE;
1706
1707         pr_debug("%s: handling sym %s addr %" PRIx64 " len %" PRIx64 "\n", __func__,
1708                   sym->name, sym->start, sym->end - sym->start);
1709
1710         memset(tpath, 0, sizeof(tpath));
1711         perf_exe(tpath, sizeof(tpath));
1712
1713         bfdf = bfd_openr(tpath, NULL);
1714         assert(bfdf);
1715         assert(bfd_check_format(bfdf, bfd_object));
1716
1717         s = open_memstream(&buf, &buf_size);
1718         if (!s) {
1719                 ret = errno;
1720                 goto out;
1721         }
1722         init_disassemble_info(&info, s,
1723                               (fprintf_ftype) fprintf);
1724
1725         info.arch = bfd_get_arch(bfdf);
1726         info.mach = bfd_get_mach(bfdf);
1727
1728         info_node = perf_env__find_bpf_prog_info(dso->bpf_prog.env,
1729                                                  dso->bpf_prog.id);
1730         if (!info_node) {
1731                 ret = SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF;
1732                 goto out;
1733         }
1734         info_linear = info_node->info_linear;
1735         sub_id = dso->bpf_prog.sub_id;
1736
1737         info.buffer = (void *)(uintptr_t)(info_linear->info.jited_prog_insns);
1738         info.buffer_length = info_linear->info.jited_prog_len;
1739
1740         if (info_linear->info.nr_line_info)
1741                 prog_linfo = bpf_prog_linfo__new(&info_linear->info);
1742
1743         if (info_linear->info.btf_id) {
1744                 struct btf_node *node;
1745
1746                 node = perf_env__find_btf(dso->bpf_prog.env,
1747                                           info_linear->info.btf_id);
1748                 if (node)
1749                         btf = btf__new((__u8 *)(node->data),
1750                                        node->data_size);
1751         }
1752
1753         disassemble_init_for_target(&info);
1754
1755 #ifdef DISASM_FOUR_ARGS_SIGNATURE
1756         disassemble = disassembler(info.arch,
1757                                    bfd_big_endian(bfdf),
1758                                    info.mach,
1759                                    bfdf);
1760 #else
1761         disassemble = disassembler(bfdf);
1762 #endif
1763         assert(disassemble);
1764
1765         fflush(s);
1766         do {
1767                 const struct bpf_line_info *linfo = NULL;
1768                 struct disasm_line *dl;
1769                 size_t prev_buf_size;
1770                 const char *srcline;
1771                 u64 addr;
1772
1773                 addr = pc + ((u64 *)(uintptr_t)(info_linear->info.jited_ksyms))[sub_id];
1774                 count = disassemble(pc, &info);
1775
1776                 if (prog_linfo)
1777                         linfo = bpf_prog_linfo__lfind_addr_func(prog_linfo,
1778                                                                 addr, sub_id,
1779                                                                 nr_skip);
1780
1781                 if (linfo && btf) {
1782                         srcline = btf__name_by_offset(btf, linfo->line_off);
1783                         nr_skip++;
1784                 } else
1785                         srcline = NULL;
1786
1787                 fprintf(s, "\n");
1788                 prev_buf_size = buf_size;
1789                 fflush(s);
1790
1791                 if (!opts->hide_src_code && srcline) {
1792                         args->offset = -1;
1793                         args->line = strdup(srcline);
1794                         args->line_nr = 0;
1795                         args->ms.sym  = sym;
1796                         dl = disasm_line__new(args);
1797                         if (dl) {
1798                                 annotation_line__add(&dl->al,
1799                                                      &notes->src->source);
1800                         }
1801                 }
1802
1803                 args->offset = pc;
1804                 args->line = buf + prev_buf_size;
1805                 args->line_nr = 0;
1806                 args->ms.sym  = sym;
1807                 dl = disasm_line__new(args);
1808                 if (dl)
1809                         annotation_line__add(&dl->al, &notes->src->source);
1810
1811                 pc += count;
1812         } while (count > 0 && pc < len);
1813
1814         ret = 0;
1815 out:
1816         free(prog_linfo);
1817         free(btf);
1818         fclose(s);
1819         bfd_close(bfdf);
1820         return ret;
1821 }
1822 #else // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
1823 static int symbol__disassemble_bpf(struct symbol *sym __maybe_unused,
1824                                    struct annotate_args *args __maybe_unused)
1825 {
1826         return SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF;
1827 }
1828 #endif // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
1829
1830 static int
1831 symbol__disassemble_bpf_image(struct symbol *sym,
1832                               struct annotate_args *args)
1833 {
1834         struct annotation *notes = symbol__annotation(sym);
1835         struct disasm_line *dl;
1836
1837         args->offset = -1;
1838         args->line = strdup("to be implemented");
1839         args->line_nr = 0;
1840         dl = disasm_line__new(args);
1841         if (dl)
1842                 annotation_line__add(&dl->al, &notes->src->source);
1843
1844         free(args->line);
1845         return 0;
1846 }
1847
1848 /*
1849  * Possibly create a new version of line with tabs expanded. Returns the
1850  * existing or new line, storage is updated if a new line is allocated. If
1851  * allocation fails then NULL is returned.
1852  */
1853 static char *expand_tabs(char *line, char **storage, size_t *storage_len)
1854 {
1855         size_t i, src, dst, len, new_storage_len, num_tabs;
1856         char *new_line;
1857         size_t line_len = strlen(line);
1858
1859         for (num_tabs = 0, i = 0; i < line_len; i++)
1860                 if (line[i] == '\t')
1861                         num_tabs++;
1862
1863         if (num_tabs == 0)
1864                 return line;
1865
1866         /*
1867          * Space for the line and '\0', less the leading and trailing
1868          * spaces. Each tab may introduce 7 additional spaces.
1869          */
1870         new_storage_len = line_len + 1 + (num_tabs * 7);
1871
1872         new_line = malloc(new_storage_len);
1873         if (new_line == NULL) {
1874                 pr_err("Failure allocating memory for tab expansion\n");
1875                 return NULL;
1876         }
1877
1878         /*
1879          * Copy regions starting at src and expand tabs. If there are two
1880          * adjacent tabs then 'src == i', the memcpy is of size 0 and the spaces
1881          * are inserted.
1882          */
1883         for (i = 0, src = 0, dst = 0; i < line_len && num_tabs; i++) {
1884                 if (line[i] == '\t') {
1885                         len = i - src;
1886                         memcpy(&new_line[dst], &line[src], len);
1887                         dst += len;
1888                         new_line[dst++] = ' ';
1889                         while (dst % 8 != 0)
1890                                 new_line[dst++] = ' ';
1891                         src = i + 1;
1892                         num_tabs--;
1893                 }
1894         }
1895
1896         /* Expand the last region. */
1897         len = line_len - src;
1898         memcpy(&new_line[dst], &line[src], len);
1899         dst += len;
1900         new_line[dst] = '\0';
1901
1902         free(*storage);
1903         *storage = new_line;
1904         *storage_len = new_storage_len;
1905         return new_line;
1906
1907 }
1908
1909 static int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
1910 {
1911         struct annotation_options *opts = args->options;
1912         struct map *map = args->ms.map;
1913         struct dso *dso = map->dso;
1914         char *command;
1915         FILE *file;
1916         char symfs_filename[PATH_MAX];
1917         struct kcore_extract kce;
1918         bool delete_extract = false;
1919         bool decomp = false;
1920         int lineno = 0;
1921         int nline;
1922         char *line;
1923         size_t line_len;
1924         const char *objdump_argv[] = {
1925                 "/bin/sh",
1926                 "-c",
1927                 NULL, /* Will be the objdump command to run. */
1928                 "--",
1929                 NULL, /* Will be the symfs path. */
1930                 NULL,
1931         };
1932         struct child_process objdump_process;
1933         int err = dso__disassemble_filename(dso, symfs_filename, sizeof(symfs_filename));
1934
1935         if (err)
1936                 return err;
1937
1938         pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
1939                  symfs_filename, sym->name, map->unmap_ip(map, sym->start),
1940                  map->unmap_ip(map, sym->end));
1941
1942         pr_debug("annotating [%p] %30s : [%p] %30s\n",
1943                  dso, dso->long_name, sym, sym->name);
1944
1945         if (dso->binary_type == DSO_BINARY_TYPE__BPF_PROG_INFO) {
1946                 return symbol__disassemble_bpf(sym, args);
1947         } else if (dso->binary_type == DSO_BINARY_TYPE__BPF_IMAGE) {
1948                 return symbol__disassemble_bpf_image(sym, args);
1949         } else if (dso__is_kcore(dso)) {
1950                 kce.kcore_filename = symfs_filename;
1951                 kce.addr = map__rip_2objdump(map, sym->start);
1952                 kce.offs = sym->start;
1953                 kce.len = sym->end - sym->start;
1954                 if (!kcore_extract__create(&kce)) {
1955                         delete_extract = true;
1956                         strlcpy(symfs_filename, kce.extract_filename,
1957                                 sizeof(symfs_filename));
1958                 }
1959         } else if (dso__needs_decompress(dso)) {
1960                 char tmp[KMOD_DECOMP_LEN];
1961
1962                 if (dso__decompress_kmodule_path(dso, symfs_filename,
1963                                                  tmp, sizeof(tmp)) < 0)
1964                         return -1;
1965
1966                 decomp = true;
1967                 strcpy(symfs_filename, tmp);
1968         }
1969
1970         err = asprintf(&command,
1971                  "%s %s%s --start-address=0x%016" PRIx64
1972                  " --stop-address=0x%016" PRIx64
1973                  " -l -d %s %s %s %c%s%c %s%s -C \"$1\"",
1974                  opts->objdump_path ?: "objdump",
1975                  opts->disassembler_style ? "-M " : "",
1976                  opts->disassembler_style ?: "",
1977                  map__rip_2objdump(map, sym->start),
1978                  map__rip_2objdump(map, sym->end),
1979                  opts->show_asm_raw ? "" : "--no-show-raw-insn",
1980                  opts->annotate_src ? "-S" : "",
1981                  opts->prefix ? "--prefix " : "",
1982                  opts->prefix ? '"' : ' ',
1983                  opts->prefix ?: "",
1984                  opts->prefix ? '"' : ' ',
1985                  opts->prefix_strip ? "--prefix-strip=" : "",
1986                  opts->prefix_strip ?: "");
1987
1988         if (err < 0) {
1989                 pr_err("Failure allocating memory for the command to run\n");
1990                 goto out_remove_tmp;
1991         }
1992
1993         pr_debug("Executing: %s\n", command);
1994
1995         objdump_argv[2] = command;
1996         objdump_argv[4] = symfs_filename;
1997
1998         /* Create a pipe to read from for stdout */
1999         memset(&objdump_process, 0, sizeof(objdump_process));
2000         objdump_process.argv = objdump_argv;
2001         objdump_process.out = -1;
2002         if (start_command(&objdump_process)) {
2003                 pr_err("Failure starting to run %s\n", command);
2004                 err = -1;
2005                 goto out_free_command;
2006         }
2007
2008         file = fdopen(objdump_process.out, "r");
2009         if (!file) {
2010                 pr_err("Failure creating FILE stream for %s\n", command);
2011                 /*
2012                  * If we were using debug info should retry with
2013                  * original binary.
2014                  */
2015                 err = -1;
2016                 goto out_close_stdout;
2017         }
2018
2019         /* Storage for getline. */
2020         line = NULL;
2021         line_len = 0;
2022
2023         nline = 0;
2024         while (!feof(file)) {
2025                 const char *match;
2026                 char *expanded_line;
2027
2028                 if (getline(&line, &line_len, file) < 0 || !line)
2029                         break;
2030
2031                 /* Skip lines containing "filename:" */
2032                 match = strstr(line, symfs_filename);
2033                 if (match && match[strlen(symfs_filename)] == ':')
2034                         continue;
2035
2036                 expanded_line = strim(line);
2037                 expanded_line = expand_tabs(expanded_line, &line, &line_len);
2038                 if (!expanded_line)
2039                         break;
2040
2041                 /*
2042                  * The source code line number (lineno) needs to be kept in
2043                  * across calls to symbol__parse_objdump_line(), so that it
2044                  * can associate it with the instructions till the next one.
2045                  * See disasm_line__new() and struct disasm_line::line_nr.
2046                  */
2047                 if (symbol__parse_objdump_line(sym, args, expanded_line,
2048                                                &lineno) < 0)
2049                         break;
2050                 nline++;
2051         }
2052         free(line);
2053
2054         err = finish_command(&objdump_process);
2055         if (err)
2056                 pr_err("Error running %s\n", command);
2057
2058         if (nline == 0) {
2059                 err = -1;
2060                 pr_err("No output from %s\n", command);
2061         }
2062
2063         /*
2064          * kallsyms does not have symbol sizes so there may a nop at the end.
2065          * Remove it.
2066          */
2067         if (dso__is_kcore(dso))
2068                 delete_last_nop(sym);
2069
2070         fclose(file);
2071
2072 out_close_stdout:
2073         close(objdump_process.out);
2074
2075 out_free_command:
2076         free(command);
2077
2078 out_remove_tmp:
2079         if (decomp)
2080                 unlink(symfs_filename);
2081
2082         if (delete_extract)
2083                 kcore_extract__delete(&kce);
2084
2085         return err;
2086 }
2087
2088 static void calc_percent(struct sym_hist *sym_hist,
2089                          struct hists *hists,
2090                          struct annotation_data *data,
2091                          s64 offset, s64 end)
2092 {
2093         unsigned int hits = 0;
2094         u64 period = 0;
2095
2096         while (offset < end) {
2097                 hits   += sym_hist->addr[offset].nr_samples;
2098                 period += sym_hist->addr[offset].period;
2099                 ++offset;
2100         }
2101
2102         if (sym_hist->nr_samples) {
2103                 data->he.period     = period;
2104                 data->he.nr_samples = hits;
2105                 data->percent[PERCENT_HITS_LOCAL] = 100.0 * hits / sym_hist->nr_samples;
2106         }
2107
2108         if (hists->stats.nr_non_filtered_samples)
2109                 data->percent[PERCENT_HITS_GLOBAL] = 100.0 * hits / hists->stats.nr_non_filtered_samples;
2110
2111         if (sym_hist->period)
2112                 data->percent[PERCENT_PERIOD_LOCAL] = 100.0 * period / sym_hist->period;
2113
2114         if (hists->stats.total_period)
2115                 data->percent[PERCENT_PERIOD_GLOBAL] = 100.0 * period / hists->stats.total_period;
2116 }
2117
2118 static void annotation__calc_percent(struct annotation *notes,
2119                                      struct evsel *leader, s64 len)
2120 {
2121         struct annotation_line *al, *next;
2122         struct evsel *evsel;
2123
2124         list_for_each_entry(al, &notes->src->source, node) {
2125                 s64 end;
2126                 int i = 0;
2127
2128                 if (al->offset == -1)
2129                         continue;
2130
2131                 next = annotation_line__next(al, &notes->src->source);
2132                 end  = next ? next->offset : len;
2133
2134                 for_each_group_evsel(evsel, leader) {
2135                         struct hists *hists = evsel__hists(evsel);
2136                         struct annotation_data *data;
2137                         struct sym_hist *sym_hist;
2138
2139                         BUG_ON(i >= al->data_nr);
2140
2141                         sym_hist = annotation__histogram(notes, evsel->idx);
2142                         data = &al->data[i++];
2143
2144                         calc_percent(sym_hist, hists, data, al->offset, end);
2145                 }
2146         }
2147 }
2148
2149 void symbol__calc_percent(struct symbol *sym, struct evsel *evsel)
2150 {
2151         struct annotation *notes = symbol__annotation(sym);
2152
2153         annotation__calc_percent(notes, evsel, symbol__size(sym));
2154 }
2155
2156 int symbol__annotate(struct map_symbol *ms, struct evsel *evsel,
2157                      struct annotation_options *options, struct arch **parch)
2158 {
2159         struct symbol *sym = ms->sym;
2160         struct annotation *notes = symbol__annotation(sym);
2161         struct annotate_args args = {
2162                 .evsel          = evsel,
2163                 .options        = options,
2164         };
2165         struct perf_env *env = evsel__env(evsel);
2166         const char *arch_name = perf_env__arch(env);
2167         struct arch *arch;
2168         int err;
2169
2170         if (!arch_name)
2171                 return errno;
2172
2173         args.arch = arch = arch__find(arch_name);
2174         if (arch == NULL)
2175                 return ENOTSUP;
2176
2177         if (parch)
2178                 *parch = arch;
2179
2180         if (arch->init) {
2181                 err = arch->init(arch, env ? env->cpuid : NULL);
2182                 if (err) {
2183                         pr_err("%s: failed to initialize %s arch priv area\n", __func__, arch->name);
2184                         return err;
2185                 }
2186         }
2187
2188         args.ms = *ms;
2189         notes->start = map__rip_2objdump(ms->map, sym->start);
2190
2191         return symbol__disassemble(sym, &args);
2192 }
2193
2194 static void insert_source_line(struct rb_root *root, struct annotation_line *al,
2195                                struct annotation_options *opts)
2196 {
2197         struct annotation_line *iter;
2198         struct rb_node **p = &root->rb_node;
2199         struct rb_node *parent = NULL;
2200         int i, ret;
2201
2202         while (*p != NULL) {
2203                 parent = *p;
2204                 iter = rb_entry(parent, struct annotation_line, rb_node);
2205
2206                 ret = strcmp(iter->path, al->path);
2207                 if (ret == 0) {
2208                         for (i = 0; i < al->data_nr; i++) {
2209                                 iter->data[i].percent_sum += annotation_data__percent(&al->data[i],
2210                                                                                       opts->percent_type);
2211                         }
2212                         return;
2213                 }
2214
2215                 if (ret < 0)
2216                         p = &(*p)->rb_left;
2217                 else
2218                         p = &(*p)->rb_right;
2219         }
2220
2221         for (i = 0; i < al->data_nr; i++) {
2222                 al->data[i].percent_sum = annotation_data__percent(&al->data[i],
2223                                                                    opts->percent_type);
2224         }
2225
2226         rb_link_node(&al->rb_node, parent, p);
2227         rb_insert_color(&al->rb_node, root);
2228 }
2229
2230 static int cmp_source_line(struct annotation_line *a, struct annotation_line *b)
2231 {
2232         int i;
2233
2234         for (i = 0; i < a->data_nr; i++) {
2235                 if (a->data[i].percent_sum == b->data[i].percent_sum)
2236                         continue;
2237                 return a->data[i].percent_sum > b->data[i].percent_sum;
2238         }
2239
2240         return 0;
2241 }
2242
2243 static void __resort_source_line(struct rb_root *root, struct annotation_line *al)
2244 {
2245         struct annotation_line *iter;
2246         struct rb_node **p = &root->rb_node;
2247         struct rb_node *parent = NULL;
2248
2249         while (*p != NULL) {
2250                 parent = *p;
2251                 iter = rb_entry(parent, struct annotation_line, rb_node);
2252
2253                 if (cmp_source_line(al, iter))
2254                         p = &(*p)->rb_left;
2255                 else
2256                         p = &(*p)->rb_right;
2257         }
2258
2259         rb_link_node(&al->rb_node, parent, p);
2260         rb_insert_color(&al->rb_node, root);
2261 }
2262
2263 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
2264 {
2265         struct annotation_line *al;
2266         struct rb_node *node;
2267
2268         node = rb_first(src_root);
2269         while (node) {
2270                 struct rb_node *next;
2271
2272                 al = rb_entry(node, struct annotation_line, rb_node);
2273                 next = rb_next(node);
2274                 rb_erase(node, src_root);
2275
2276                 __resort_source_line(dest_root, al);
2277                 node = next;
2278         }
2279 }
2280
2281 static void print_summary(struct rb_root *root, const char *filename)
2282 {
2283         struct annotation_line *al;
2284         struct rb_node *node;
2285
2286         printf("\nSorted summary for file %s\n", filename);
2287         printf("----------------------------------------------\n\n");
2288
2289         if (RB_EMPTY_ROOT(root)) {
2290                 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
2291                 return;
2292         }
2293
2294         node = rb_first(root);
2295         while (node) {
2296                 double percent, percent_max = 0.0;
2297                 const char *color;
2298                 char *path;
2299                 int i;
2300
2301                 al = rb_entry(node, struct annotation_line, rb_node);
2302                 for (i = 0; i < al->data_nr; i++) {
2303                         percent = al->data[i].percent_sum;
2304                         color = get_percent_color(percent);
2305                         color_fprintf(stdout, color, " %7.2f", percent);
2306
2307                         if (percent > percent_max)
2308                                 percent_max = percent;
2309                 }
2310
2311                 path = al->path;
2312                 color = get_percent_color(percent_max);
2313                 color_fprintf(stdout, color, " %s\n", path);
2314
2315                 node = rb_next(node);
2316         }
2317 }
2318
2319 static void symbol__annotate_hits(struct symbol *sym, struct evsel *evsel)
2320 {
2321         struct annotation *notes = symbol__annotation(sym);
2322         struct sym_hist *h = annotation__histogram(notes, evsel->idx);
2323         u64 len = symbol__size(sym), offset;
2324
2325         for (offset = 0; offset < len; ++offset)
2326                 if (h->addr[offset].nr_samples != 0)
2327                         printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
2328                                sym->start + offset, h->addr[offset].nr_samples);
2329         printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->nr_samples", h->nr_samples);
2330 }
2331
2332 static int annotated_source__addr_fmt_width(struct list_head *lines, u64 start)
2333 {
2334         char bf[32];
2335         struct annotation_line *line;
2336
2337         list_for_each_entry_reverse(line, lines, node) {
2338                 if (line->offset != -1)
2339                         return scnprintf(bf, sizeof(bf), "%" PRIx64, start + line->offset);
2340         }
2341
2342         return 0;
2343 }
2344
2345 int symbol__annotate_printf(struct map_symbol *ms, struct evsel *evsel,
2346                             struct annotation_options *opts)
2347 {
2348         struct map *map = ms->map;
2349         struct symbol *sym = ms->sym;
2350         struct dso *dso = map->dso;
2351         char *filename;
2352         const char *d_filename;
2353         const char *evsel_name = evsel__name(evsel);
2354         struct annotation *notes = symbol__annotation(sym);
2355         struct sym_hist *h = annotation__histogram(notes, evsel->idx);
2356         struct annotation_line *pos, *queue = NULL;
2357         u64 start = map__rip_2objdump(map, sym->start);
2358         int printed = 2, queue_len = 0, addr_fmt_width;
2359         int more = 0;
2360         bool context = opts->context;
2361         u64 len;
2362         int width = symbol_conf.show_total_period ? 12 : 8;
2363         int graph_dotted_len;
2364         char buf[512];
2365
2366         filename = strdup(dso->long_name);
2367         if (!filename)
2368                 return -ENOMEM;
2369
2370         if (opts->full_path)
2371                 d_filename = filename;
2372         else
2373                 d_filename = basename(filename);
2374
2375         len = symbol__size(sym);
2376
2377         if (evsel__is_group_event(evsel)) {
2378                 width *= evsel->core.nr_members;
2379                 evsel__group_desc(evsel, buf, sizeof(buf));
2380                 evsel_name = buf;
2381         }
2382
2383         graph_dotted_len = printf(" %-*.*s|     Source code & Disassembly of %s for %s (%" PRIu64 " samples, "
2384                                   "percent: %s)\n",
2385                                   width, width, symbol_conf.show_total_period ? "Period" :
2386                                   symbol_conf.show_nr_samples ? "Samples" : "Percent",
2387                                   d_filename, evsel_name, h->nr_samples,
2388                                   percent_type_str(opts->percent_type));
2389
2390         printf("%-*.*s----\n",
2391                graph_dotted_len, graph_dotted_len, graph_dotted_line);
2392
2393         if (verbose > 0)
2394                 symbol__annotate_hits(sym, evsel);
2395
2396         addr_fmt_width = annotated_source__addr_fmt_width(&notes->src->source, start);
2397
2398         list_for_each_entry(pos, &notes->src->source, node) {
2399                 int err;
2400
2401                 if (context && queue == NULL) {
2402                         queue = pos;
2403                         queue_len = 0;
2404                 }
2405
2406                 err = annotation_line__print(pos, sym, start, evsel, len,
2407                                              opts->min_pcnt, printed, opts->max_lines,
2408                                              queue, addr_fmt_width, opts->percent_type);
2409
2410                 switch (err) {
2411                 case 0:
2412                         ++printed;
2413                         if (context) {
2414                                 printed += queue_len;
2415                                 queue = NULL;
2416                                 queue_len = 0;
2417                         }
2418                         break;
2419                 case 1:
2420                         /* filtered by max_lines */
2421                         ++more;
2422                         break;
2423                 case -1:
2424                 default:
2425                         /*
2426                          * Filtered by min_pcnt or non IP lines when
2427                          * context != 0
2428                          */
2429                         if (!context)
2430                                 break;
2431                         if (queue_len == context)
2432                                 queue = list_entry(queue->node.next, typeof(*queue), node);
2433                         else
2434                                 ++queue_len;
2435                         break;
2436                 }
2437         }
2438
2439         free(filename);
2440
2441         return more;
2442 }
2443
2444 static void FILE__set_percent_color(void *fp __maybe_unused,
2445                                     double percent __maybe_unused,
2446                                     bool current __maybe_unused)
2447 {
2448 }
2449
2450 static int FILE__set_jumps_percent_color(void *fp __maybe_unused,
2451                                          int nr __maybe_unused, bool current __maybe_unused)
2452 {
2453         return 0;
2454 }
2455
2456 static int FILE__set_color(void *fp __maybe_unused, int color __maybe_unused)
2457 {
2458         return 0;
2459 }
2460
2461 static void FILE__printf(void *fp, const char *fmt, ...)
2462 {
2463         va_list args;
2464
2465         va_start(args, fmt);
2466         vfprintf(fp, fmt, args);
2467         va_end(args);
2468 }
2469
2470 static void FILE__write_graph(void *fp, int graph)
2471 {
2472         const char *s;
2473         switch (graph) {
2474
2475         case DARROW_CHAR: s = "↓"; break;
2476         case UARROW_CHAR: s = "↑"; break;
2477         case LARROW_CHAR: s = "←"; break;
2478         case RARROW_CHAR: s = "→"; break;
2479         default:                s = "?"; break;
2480         }
2481
2482         fputs(s, fp);
2483 }
2484
2485 static int symbol__annotate_fprintf2(struct symbol *sym, FILE *fp,
2486                                      struct annotation_options *opts)
2487 {
2488         struct annotation *notes = symbol__annotation(sym);
2489         struct annotation_write_ops wops = {
2490                 .first_line              = true,
2491                 .obj                     = fp,
2492                 .set_color               = FILE__set_color,
2493                 .set_percent_color       = FILE__set_percent_color,
2494                 .set_jumps_percent_color = FILE__set_jumps_percent_color,
2495                 .printf                  = FILE__printf,
2496                 .write_graph             = FILE__write_graph,
2497         };
2498         struct annotation_line *al;
2499
2500         list_for_each_entry(al, &notes->src->source, node) {
2501                 if (annotation_line__filter(al, notes))
2502                         continue;
2503                 annotation_line__write(al, notes, &wops, opts);
2504                 fputc('\n', fp);
2505                 wops.first_line = false;
2506         }
2507
2508         return 0;
2509 }
2510
2511 int map_symbol__annotation_dump(struct map_symbol *ms, struct evsel *evsel,
2512                                 struct annotation_options *opts)
2513 {
2514         const char *ev_name = evsel__name(evsel);
2515         char buf[1024];
2516         char *filename;
2517         int err = -1;
2518         FILE *fp;
2519
2520         if (asprintf(&filename, "%s.annotation", ms->sym->name) < 0)
2521                 return -1;
2522
2523         fp = fopen(filename, "w");
2524         if (fp == NULL)
2525                 goto out_free_filename;
2526
2527         if (evsel__is_group_event(evsel)) {
2528                 evsel__group_desc(evsel, buf, sizeof(buf));
2529                 ev_name = buf;
2530         }
2531
2532         fprintf(fp, "%s() %s\nEvent: %s\n\n",
2533                 ms->sym->name, ms->map->dso->long_name, ev_name);
2534         symbol__annotate_fprintf2(ms->sym, fp, opts);
2535
2536         fclose(fp);
2537         err = 0;
2538 out_free_filename:
2539         free(filename);
2540         return err;
2541 }
2542
2543 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
2544 {
2545         struct annotation *notes = symbol__annotation(sym);
2546         struct sym_hist *h = annotation__histogram(notes, evidx);
2547
2548         memset(h, 0, notes->src->sizeof_sym_hist);
2549 }
2550
2551 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
2552 {
2553         struct annotation *notes = symbol__annotation(sym);
2554         struct sym_hist *h = annotation__histogram(notes, evidx);
2555         int len = symbol__size(sym), offset;
2556
2557         h->nr_samples = 0;
2558         for (offset = 0; offset < len; ++offset) {
2559                 h->addr[offset].nr_samples = h->addr[offset].nr_samples * 7 / 8;
2560                 h->nr_samples += h->addr[offset].nr_samples;
2561         }
2562 }
2563
2564 void annotated_source__purge(struct annotated_source *as)
2565 {
2566         struct annotation_line *al, *n;
2567
2568         list_for_each_entry_safe(al, n, &as->source, node) {
2569                 list_del_init(&al->node);
2570                 disasm_line__free(disasm_line(al));
2571         }
2572 }
2573
2574 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
2575 {
2576         size_t printed;
2577
2578         if (dl->al.offset == -1)
2579                 return fprintf(fp, "%s\n", dl->al.line);
2580
2581         printed = fprintf(fp, "%#" PRIx64 " %s", dl->al.offset, dl->ins.name);
2582
2583         if (dl->ops.raw[0] != '\0') {
2584                 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
2585                                    dl->ops.raw);
2586         }
2587
2588         return printed + fprintf(fp, "\n");
2589 }
2590
2591 size_t disasm__fprintf(struct list_head *head, FILE *fp)
2592 {
2593         struct disasm_line *pos;
2594         size_t printed = 0;
2595
2596         list_for_each_entry(pos, head, al.node)
2597                 printed += disasm_line__fprintf(pos, fp);
2598
2599         return printed;
2600 }
2601
2602 bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym)
2603 {
2604         if (!dl || !dl->ins.ops || !ins__is_jump(&dl->ins) ||
2605             !disasm_line__has_local_offset(dl) || dl->ops.target.offset < 0 ||
2606             dl->ops.target.offset >= (s64)symbol__size(sym))
2607                 return false;
2608
2609         return true;
2610 }
2611
2612 void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym)
2613 {
2614         u64 offset, size = symbol__size(sym);
2615
2616         /* PLT symbols contain external offsets */
2617         if (strstr(sym->name, "@plt"))
2618                 return;
2619
2620         for (offset = 0; offset < size; ++offset) {
2621                 struct annotation_line *al = notes->offsets[offset];
2622                 struct disasm_line *dl;
2623
2624                 dl = disasm_line(al);
2625
2626                 if (!disasm_line__is_valid_local_jump(dl, sym))
2627                         continue;
2628
2629                 al = notes->offsets[dl->ops.target.offset];
2630
2631                 /*
2632                  * FIXME: Oops, no jump target? Buggy disassembler? Or do we
2633                  * have to adjust to the previous offset?
2634                  */
2635                 if (al == NULL)
2636                         continue;
2637
2638                 if (++al->jump_sources > notes->max_jump_sources)
2639                         notes->max_jump_sources = al->jump_sources;
2640         }
2641 }
2642
2643 void annotation__set_offsets(struct annotation *notes, s64 size)
2644 {
2645         struct annotation_line *al;
2646
2647         notes->max_line_len = 0;
2648         notes->nr_entries = 0;
2649         notes->nr_asm_entries = 0;
2650
2651         list_for_each_entry(al, &notes->src->source, node) {
2652                 size_t line_len = strlen(al->line);
2653
2654                 if (notes->max_line_len < line_len)
2655                         notes->max_line_len = line_len;
2656                 al->idx = notes->nr_entries++;
2657                 if (al->offset != -1) {
2658                         al->idx_asm = notes->nr_asm_entries++;
2659                         /*
2660                          * FIXME: short term bandaid to cope with assembly
2661                          * routines that comes with labels in the same column
2662                          * as the address in objdump, sigh.
2663                          *
2664                          * E.g. copy_user_generic_unrolled
2665                          */
2666                         if (al->offset < size)
2667                                 notes->offsets[al->offset] = al;
2668                 } else
2669                         al->idx_asm = -1;
2670         }
2671 }
2672
2673 static inline int width_jumps(int n)
2674 {
2675         if (n >= 100)
2676                 return 5;
2677         if (n / 10)
2678                 return 2;
2679         return 1;
2680 }
2681
2682 static int annotation__max_ins_name(struct annotation *notes)
2683 {
2684         int max_name = 0, len;
2685         struct annotation_line *al;
2686
2687         list_for_each_entry(al, &notes->src->source, node) {
2688                 if (al->offset == -1)
2689                         continue;
2690
2691                 len = strlen(disasm_line(al)->ins.name);
2692                 if (max_name < len)
2693                         max_name = len;
2694         }
2695
2696         return max_name;
2697 }
2698
2699 void annotation__init_column_widths(struct annotation *notes, struct symbol *sym)
2700 {
2701         notes->widths.addr = notes->widths.target =
2702                 notes->widths.min_addr = hex_width(symbol__size(sym));
2703         notes->widths.max_addr = hex_width(sym->end);
2704         notes->widths.jumps = width_jumps(notes->max_jump_sources);
2705         notes->widths.max_ins_name = annotation__max_ins_name(notes);
2706 }
2707
2708 void annotation__update_column_widths(struct annotation *notes)
2709 {
2710         if (notes->options->use_offset)
2711                 notes->widths.target = notes->widths.min_addr;
2712         else
2713                 notes->widths.target = notes->widths.max_addr;
2714
2715         notes->widths.addr = notes->widths.target;
2716
2717         if (notes->options->show_nr_jumps)
2718                 notes->widths.addr += notes->widths.jumps + 1;
2719 }
2720
2721 static void annotation__calc_lines(struct annotation *notes, struct map *map,
2722                                    struct rb_root *root,
2723                                    struct annotation_options *opts)
2724 {
2725         struct annotation_line *al;
2726         struct rb_root tmp_root = RB_ROOT;
2727
2728         list_for_each_entry(al, &notes->src->source, node) {
2729                 double percent_max = 0.0;
2730                 int i;
2731
2732                 for (i = 0; i < al->data_nr; i++) {
2733                         double percent;
2734
2735                         percent = annotation_data__percent(&al->data[i],
2736                                                            opts->percent_type);
2737
2738                         if (percent > percent_max)
2739                                 percent_max = percent;
2740                 }
2741
2742                 if (percent_max <= 0.5)
2743                         continue;
2744
2745                 al->path = get_srcline(map->dso, notes->start + al->offset, NULL,
2746                                        false, true, notes->start + al->offset);
2747                 insert_source_line(&tmp_root, al, opts);
2748         }
2749
2750         resort_source_line(root, &tmp_root);
2751 }
2752
2753 static void symbol__calc_lines(struct map_symbol *ms, struct rb_root *root,
2754                                struct annotation_options *opts)
2755 {
2756         struct annotation *notes = symbol__annotation(ms->sym);
2757
2758         annotation__calc_lines(notes, ms->map, root, opts);
2759 }
2760
2761 int symbol__tty_annotate2(struct map_symbol *ms, struct evsel *evsel,
2762                           struct annotation_options *opts)
2763 {
2764         struct dso *dso = ms->map->dso;
2765         struct symbol *sym = ms->sym;
2766         struct rb_root source_line = RB_ROOT;
2767         struct hists *hists = evsel__hists(evsel);
2768         char buf[1024];
2769
2770         if (symbol__annotate2(ms, evsel, opts, NULL) < 0)
2771                 return -1;
2772
2773         if (opts->print_lines) {
2774                 srcline_full_filename = opts->full_path;
2775                 symbol__calc_lines(ms, &source_line, opts);
2776                 print_summary(&source_line, dso->long_name);
2777         }
2778
2779         hists__scnprintf_title(hists, buf, sizeof(buf));
2780         fprintf(stdout, "%s, [percent: %s]\n%s() %s\n",
2781                 buf, percent_type_str(opts->percent_type), sym->name, dso->long_name);
2782         symbol__annotate_fprintf2(sym, stdout, opts);
2783
2784         annotated_source__purge(symbol__annotation(sym)->src);
2785
2786         return 0;
2787 }
2788
2789 int symbol__tty_annotate(struct map_symbol *ms, struct evsel *evsel,
2790                          struct annotation_options *opts)
2791 {
2792         struct dso *dso = ms->map->dso;
2793         struct symbol *sym = ms->sym;
2794         struct rb_root source_line = RB_ROOT;
2795
2796         if (symbol__annotate(ms, evsel, opts, NULL) < 0)
2797                 return -1;
2798
2799         symbol__calc_percent(sym, evsel);
2800
2801         if (opts->print_lines) {
2802                 srcline_full_filename = opts->full_path;
2803                 symbol__calc_lines(ms, &source_line, opts);
2804                 print_summary(&source_line, dso->long_name);
2805         }
2806
2807         symbol__annotate_printf(ms, evsel, opts);
2808
2809         annotated_source__purge(symbol__annotation(sym)->src);
2810
2811         return 0;
2812 }
2813
2814 bool ui__has_annotation(void)
2815 {
2816         return use_browser == 1 && perf_hpp_list.sym;
2817 }
2818
2819
2820 static double annotation_line__max_percent(struct annotation_line *al,
2821                                            struct annotation *notes,
2822                                            unsigned int percent_type)
2823 {
2824         double percent_max = 0.0;
2825         int i;
2826
2827         for (i = 0; i < notes->nr_events; i++) {
2828                 double percent;
2829
2830                 percent = annotation_data__percent(&al->data[i],
2831                                                    percent_type);
2832
2833                 if (percent > percent_max)
2834                         percent_max = percent;
2835         }
2836
2837         return percent_max;
2838 }
2839
2840 static void disasm_line__write(struct disasm_line *dl, struct annotation *notes,
2841                                void *obj, char *bf, size_t size,
2842                                void (*obj__printf)(void *obj, const char *fmt, ...),
2843                                void (*obj__write_graph)(void *obj, int graph))
2844 {
2845         if (dl->ins.ops && dl->ins.ops->scnprintf) {
2846                 if (ins__is_jump(&dl->ins)) {
2847                         bool fwd;
2848
2849                         if (dl->ops.target.outside)
2850                                 goto call_like;
2851                         fwd = dl->ops.target.offset > dl->al.offset;
2852                         obj__write_graph(obj, fwd ? DARROW_CHAR : UARROW_CHAR);
2853                         obj__printf(obj, " ");
2854                 } else if (ins__is_call(&dl->ins)) {
2855 call_like:
2856                         obj__write_graph(obj, RARROW_CHAR);
2857                         obj__printf(obj, " ");
2858                 } else if (ins__is_ret(&dl->ins)) {
2859                         obj__write_graph(obj, LARROW_CHAR);
2860                         obj__printf(obj, " ");
2861                 } else {
2862                         obj__printf(obj, "  ");
2863                 }
2864         } else {
2865                 obj__printf(obj, "  ");
2866         }
2867
2868         disasm_line__scnprintf(dl, bf, size, !notes->options->use_offset, notes->widths.max_ins_name);
2869 }
2870
2871 static void ipc_coverage_string(char *bf, int size, struct annotation *notes)
2872 {
2873         double ipc = 0.0, coverage = 0.0;
2874
2875         if (notes->hit_cycles)
2876                 ipc = notes->hit_insn / ((double)notes->hit_cycles);
2877
2878         if (notes->total_insn) {
2879                 coverage = notes->cover_insn * 100.0 /
2880                         ((double)notes->total_insn);
2881         }
2882
2883         scnprintf(bf, size, "(Average IPC: %.2f, IPC Coverage: %.1f%%)",
2884                   ipc, coverage);
2885 }
2886
2887 static void __annotation_line__write(struct annotation_line *al, struct annotation *notes,
2888                                      bool first_line, bool current_entry, bool change_color, int width,
2889                                      void *obj, unsigned int percent_type,
2890                                      int  (*obj__set_color)(void *obj, int color),
2891                                      void (*obj__set_percent_color)(void *obj, double percent, bool current),
2892                                      int  (*obj__set_jumps_percent_color)(void *obj, int nr, bool current),
2893                                      void (*obj__printf)(void *obj, const char *fmt, ...),
2894                                      void (*obj__write_graph)(void *obj, int graph))
2895
2896 {
2897         double percent_max = annotation_line__max_percent(al, notes, percent_type);
2898         int pcnt_width = annotation__pcnt_width(notes),
2899             cycles_width = annotation__cycles_width(notes);
2900         bool show_title = false;
2901         char bf[256];
2902         int printed;
2903
2904         if (first_line && (al->offset == -1 || percent_max == 0.0)) {
2905                 if (notes->have_cycles) {
2906                         if (al->ipc == 0.0 && al->cycles == 0)
2907                                 show_title = true;
2908                 } else
2909                         show_title = true;
2910         }
2911
2912         if (al->offset != -1 && percent_max != 0.0) {
2913                 int i;
2914
2915                 for (i = 0; i < notes->nr_events; i++) {
2916                         double percent;
2917
2918                         percent = annotation_data__percent(&al->data[i], percent_type);
2919
2920                         obj__set_percent_color(obj, percent, current_entry);
2921                         if (symbol_conf.show_total_period) {
2922                                 obj__printf(obj, "%11" PRIu64 " ", al->data[i].he.period);
2923                         } else if (symbol_conf.show_nr_samples) {
2924                                 obj__printf(obj, "%6" PRIu64 " ",
2925                                                    al->data[i].he.nr_samples);
2926                         } else {
2927                                 obj__printf(obj, "%6.2f ", percent);
2928                         }
2929                 }
2930         } else {
2931                 obj__set_percent_color(obj, 0, current_entry);
2932
2933                 if (!show_title)
2934                         obj__printf(obj, "%-*s", pcnt_width, " ");
2935                 else {
2936                         obj__printf(obj, "%-*s", pcnt_width,
2937                                            symbol_conf.show_total_period ? "Period" :
2938                                            symbol_conf.show_nr_samples ? "Samples" : "Percent");
2939                 }
2940         }
2941
2942         if (notes->have_cycles) {
2943                 if (al->ipc)
2944                         obj__printf(obj, "%*.2f ", ANNOTATION__IPC_WIDTH - 1, al->ipc);
2945                 else if (!show_title)
2946                         obj__printf(obj, "%*s", ANNOTATION__IPC_WIDTH, " ");
2947                 else
2948                         obj__printf(obj, "%*s ", ANNOTATION__IPC_WIDTH - 1, "IPC");
2949
2950                 if (!notes->options->show_minmax_cycle) {
2951                         if (al->cycles)
2952                                 obj__printf(obj, "%*" PRIu64 " ",
2953                                            ANNOTATION__CYCLES_WIDTH - 1, al->cycles);
2954                         else if (!show_title)
2955                                 obj__printf(obj, "%*s",
2956                                             ANNOTATION__CYCLES_WIDTH, " ");
2957                         else
2958                                 obj__printf(obj, "%*s ",
2959                                             ANNOTATION__CYCLES_WIDTH - 1,
2960                                             "Cycle");
2961                 } else {
2962                         if (al->cycles) {
2963                                 char str[32];
2964
2965                                 scnprintf(str, sizeof(str),
2966                                         "%" PRIu64 "(%" PRIu64 "/%" PRIu64 ")",
2967                                         al->cycles, al->cycles_min,
2968                                         al->cycles_max);
2969
2970                                 obj__printf(obj, "%*s ",
2971                                             ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
2972                                             str);
2973                         } else if (!show_title)
2974                                 obj__printf(obj, "%*s",
2975                                             ANNOTATION__MINMAX_CYCLES_WIDTH,
2976                                             " ");
2977                         else
2978                                 obj__printf(obj, "%*s ",
2979                                             ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
2980                                             "Cycle(min/max)");
2981                 }
2982
2983                 if (show_title && !*al->line) {
2984                         ipc_coverage_string(bf, sizeof(bf), notes);
2985                         obj__printf(obj, "%*s", ANNOTATION__AVG_IPC_WIDTH, bf);
2986                 }
2987         }
2988
2989         obj__printf(obj, " ");
2990
2991         if (!*al->line)
2992                 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width, " ");
2993         else if (al->offset == -1) {
2994                 if (al->line_nr && notes->options->show_linenr)
2995                         printed = scnprintf(bf, sizeof(bf), "%-*d ", notes->widths.addr + 1, al->line_nr);
2996                 else
2997                         printed = scnprintf(bf, sizeof(bf), "%-*s  ", notes->widths.addr, " ");
2998                 obj__printf(obj, bf);
2999                 obj__printf(obj, "%-*s", width - printed - pcnt_width - cycles_width + 1, al->line);
3000         } else {
3001                 u64 addr = al->offset;
3002                 int color = -1;
3003
3004                 if (!notes->options->use_offset)
3005                         addr += notes->start;
3006
3007                 if (!notes->options->use_offset) {
3008                         printed = scnprintf(bf, sizeof(bf), "%" PRIx64 ": ", addr);
3009                 } else {
3010                         if (al->jump_sources &&
3011                             notes->options->offset_level >= ANNOTATION__OFFSET_JUMP_TARGETS) {
3012                                 if (notes->options->show_nr_jumps) {
3013                                         int prev;
3014                                         printed = scnprintf(bf, sizeof(bf), "%*d ",
3015                                                             notes->widths.jumps,
3016                                                             al->jump_sources);
3017                                         prev = obj__set_jumps_percent_color(obj, al->jump_sources,
3018                                                                             current_entry);
3019                                         obj__printf(obj, bf);
3020                                         obj__set_color(obj, prev);
3021                                 }
3022 print_addr:
3023                                 printed = scnprintf(bf, sizeof(bf), "%*" PRIx64 ": ",
3024                                                     notes->widths.target, addr);
3025                         } else if (ins__is_call(&disasm_line(al)->ins) &&
3026                                    notes->options->offset_level >= ANNOTATION__OFFSET_CALL) {
3027                                 goto print_addr;
3028                         } else if (notes->options->offset_level == ANNOTATION__MAX_OFFSET_LEVEL) {
3029                                 goto print_addr;
3030                         } else {
3031                                 printed = scnprintf(bf, sizeof(bf), "%-*s  ",
3032                                                     notes->widths.addr, " ");
3033                         }
3034                 }
3035
3036                 if (change_color)
3037                         color = obj__set_color(obj, HE_COLORSET_ADDR);
3038                 obj__printf(obj, bf);
3039                 if (change_color)
3040                         obj__set_color(obj, color);
3041
3042                 disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf), obj__printf, obj__write_graph);
3043
3044                 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width - 3 - printed, bf);
3045         }
3046
3047 }
3048
3049 void annotation_line__write(struct annotation_line *al, struct annotation *notes,
3050                             struct annotation_write_ops *wops,
3051                             struct annotation_options *opts)
3052 {
3053         __annotation_line__write(al, notes, wops->first_line, wops->current_entry,
3054                                  wops->change_color, wops->width, wops->obj,
3055                                  opts->percent_type,
3056                                  wops->set_color, wops->set_percent_color,
3057                                  wops->set_jumps_percent_color, wops->printf,
3058                                  wops->write_graph);
3059 }
3060
3061 int symbol__annotate2(struct map_symbol *ms, struct evsel *evsel,
3062                       struct annotation_options *options, struct arch **parch)
3063 {
3064         struct symbol *sym = ms->sym;
3065         struct annotation *notes = symbol__annotation(sym);
3066         size_t size = symbol__size(sym);
3067         int nr_pcnt = 1, err;
3068
3069         notes->offsets = zalloc(size * sizeof(struct annotation_line *));
3070         if (notes->offsets == NULL)
3071                 return ENOMEM;
3072
3073         if (evsel__is_group_event(evsel))
3074                 nr_pcnt = evsel->core.nr_members;
3075
3076         err = symbol__annotate(ms, evsel, options, parch);
3077         if (err)
3078                 goto out_free_offsets;
3079
3080         notes->options = options;
3081
3082         symbol__calc_percent(sym, evsel);
3083
3084         annotation__set_offsets(notes, size);
3085         annotation__mark_jump_targets(notes, sym);
3086         annotation__compute_ipc(notes, size);
3087         annotation__init_column_widths(notes, sym);
3088         notes->nr_events = nr_pcnt;
3089
3090         annotation__update_column_widths(notes);
3091         sym->annotate2 = true;
3092
3093         return 0;
3094
3095 out_free_offsets:
3096         zfree(&notes->offsets);
3097         return err;
3098 }
3099
3100 static int annotation__config(const char *var, const char *value, void *data)
3101 {
3102         struct annotation_options *opt = data;
3103
3104         if (!strstarts(var, "annotate."))
3105                 return 0;
3106
3107         if (!strcmp(var, "annotate.offset_level")) {
3108                 perf_config_u8(&opt->offset_level, "offset_level", value);
3109
3110                 if (opt->offset_level > ANNOTATION__MAX_OFFSET_LEVEL)
3111                         opt->offset_level = ANNOTATION__MAX_OFFSET_LEVEL;
3112                 else if (opt->offset_level < ANNOTATION__MIN_OFFSET_LEVEL)
3113                         opt->offset_level = ANNOTATION__MIN_OFFSET_LEVEL;
3114         } else if (!strcmp(var, "annotate.hide_src_code")) {
3115                 opt->hide_src_code = perf_config_bool("hide_src_code", value);
3116         } else if (!strcmp(var, "annotate.jump_arrows")) {
3117                 opt->jump_arrows = perf_config_bool("jump_arrows", value);
3118         } else if (!strcmp(var, "annotate.show_linenr")) {
3119                 opt->show_linenr = perf_config_bool("show_linenr", value);
3120         } else if (!strcmp(var, "annotate.show_nr_jumps")) {
3121                 opt->show_nr_jumps = perf_config_bool("show_nr_jumps", value);
3122         } else if (!strcmp(var, "annotate.show_nr_samples")) {
3123                 symbol_conf.show_nr_samples = perf_config_bool("show_nr_samples",
3124                                                                 value);
3125         } else if (!strcmp(var, "annotate.show_total_period")) {
3126                 symbol_conf.show_total_period = perf_config_bool("show_total_period",
3127                                                                 value);
3128         } else if (!strcmp(var, "annotate.use_offset")) {
3129                 opt->use_offset = perf_config_bool("use_offset", value);
3130         } else {
3131                 pr_debug("%s variable unknown, ignoring...", var);
3132         }
3133
3134         return 0;
3135 }
3136
3137 void annotation_config__init(struct annotation_options *opt)
3138 {
3139         perf_config(annotation__config, opt);
3140 }
3141
3142 static unsigned int parse_percent_type(char *str1, char *str2)
3143 {
3144         unsigned int type = (unsigned int) -1;
3145
3146         if (!strcmp("period", str1)) {
3147                 if (!strcmp("local", str2))
3148                         type = PERCENT_PERIOD_LOCAL;
3149                 else if (!strcmp("global", str2))
3150                         type = PERCENT_PERIOD_GLOBAL;
3151         }
3152
3153         if (!strcmp("hits", str1)) {
3154                 if (!strcmp("local", str2))
3155                         type = PERCENT_HITS_LOCAL;
3156                 else if (!strcmp("global", str2))
3157                         type = PERCENT_HITS_GLOBAL;
3158         }
3159
3160         return type;
3161 }
3162
3163 int annotate_parse_percent_type(const struct option *opt, const char *_str,
3164                                 int unset __maybe_unused)
3165 {
3166         struct annotation_options *opts = opt->value;
3167         unsigned int type;
3168         char *str1, *str2;
3169         int err = -1;
3170
3171         str1 = strdup(_str);
3172         if (!str1)
3173                 return -ENOMEM;
3174
3175         str2 = strchr(str1, '-');
3176         if (!str2)
3177                 goto out;
3178
3179         *str2++ = 0;
3180
3181         type = parse_percent_type(str1, str2);
3182         if (type == (unsigned int) -1)
3183                 type = parse_percent_type(str2, str1);
3184         if (type != (unsigned int) -1) {
3185                 opts->percent_type = type;
3186                 err = 0;
3187         }
3188
3189 out:
3190         free(str1);
3191         return err;
3192 }
3193
3194 int annotate_check_args(struct annotation_options *args)
3195 {
3196         if (args->prefix_strip && !args->prefix) {
3197                 pr_err("--prefix-strip requires --prefix\n");
3198                 return -1;
3199         }
3200         return 0;
3201 }