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 "util.h" // hex_width()
  14 #include "ui/ui.h"
  15 #include "sort.h"
  16 #include "build-id.h"
  17 #include "color.h"
  18 #include "config.h"
  19 #include "dso.h"
  20 #include "env.h"
  21 #include "map.h"
  22 #include "maps.h"
  23 #include "symbol.h"
  24 #include "srcline.h"
  25 #include "units.h"
  26 #include "debug.h"
  27 #include "annotate.h"
  28 #include "evsel.h"
  29 #include "evlist.h"
  30 #include "bpf-event.h"
  31 #include "bpf-utils.h"
  32 #include "block-range.h"
  33 #include "string2.h"
  34 #include "util/event.h"
  35 #include "arch/common.h"
  36 #include "namespaces.h"
  37 #include <regex.h>
  38 #include <pthread.h>
  39 #include <linux/bitops.h>
  40 #include <linux/kernel.h>
  41 #include <linux/string.h>
  42 #include <subcmd/parse-options.h>
  43 #include <subcmd/run-command.h>
  44
  45 /* FIXME: For the HE_COLORSET */
  46 #include "ui/browser.h"
  47
  48 /*
  49  * FIXME: Using the same values as slang.h,
  50  * but that header may not be available everywhere
  51  */
  52 #define LARROW_CHAR     ((unsigned char)',')
  53 #define RARROW_CHAR     ((unsigned char)'+')
  54 #define DARROW_CHAR     ((unsigned char)'.')
  55 #define UARROW_CHAR     ((unsigned char)'-')
  56
  57 #include <linux/ctype.h>
  58
  59 struct annotation_options annotation__default_options = {
  60         .use_offset     = true,
  61         .jump_arrows    = true,
  62         .annotate_src   = true,
  63         .offset_level   = ANNOTATION__OFFSET_JUMP_TARGETS,
  64         .percent_type   = PERCENT_PERIOD_LOCAL,
  65 };
  66
  67 static regex_t   file_lineno;
  68
  69 static struct ins_ops *ins__find(struct arch *arch, const char *name);
  70 static void ins__sort(struct arch *arch);
  71 static int disasm_line__parse(char *line, const char **namep, char **rawp);
  72
  73 struct arch {
  74         const char      *name;
  75         struct ins      *instructions;
  76         size_t          nr_instructions;
  77         size_t          nr_instructions_allocated;
  78         struct ins_ops  *(*associate_instruction_ops)(struct arch *arch, const char *name);
  79         bool            sorted_instructions;
  80         bool            initialized;
  81         void            *priv;
  82         unsigned int    model;
  83         unsigned int    family;
  84         int             (*init)(struct arch *arch, char *cpuid);
  85         bool            (*ins_is_fused)(struct arch *arch, const char *ins1,
  86                                         const char *ins2);
  87         struct          {
  88                 char comment_char;
  89                 char skip_functions_char;
  90         } objdump;
  91 };
  92
  93 static struct ins_ops call_ops;
  94 static struct ins_ops dec_ops;
  95 static struct ins_ops jump_ops;
  96 static struct ins_ops mov_ops;
  97 static struct ins_ops nop_ops;
  98 static struct ins_ops lock_ops;
  99 static struct ins_ops ret_ops;
 100
 101 static int arch__grow_instructions(struct arch *arch)
 102 {
 103         struct ins *new_instructions;
 104         size_t new_nr_allocated;
 105
 106         if (arch->nr_instructions_allocated == 0 && arch->instructions)
 107                 goto grow_from_non_allocated_table;
 108
 109         new_nr_allocated = arch->nr_instructions_allocated + 128;
 110         new_instructions = realloc(arch->instructions, new_nr_allocated * sizeof(struct ins));
 111         if (new_instructions == NULL)
 112                 return -1;
 113
 114 out_update_instructions:
 115         arch->instructions = new_instructions;
 116         arch->nr_instructions_allocated = new_nr_allocated;
 117         return 0;
 118
 119 grow_from_non_allocated_table:
 120         new_nr_allocated = arch->nr_instructions + 128;
 121         new_instructions = calloc(new_nr_allocated, sizeof(struct ins));
 122         if (new_instructions == NULL)
 123                 return -1;
 124
 125         memcpy(new_instructions, arch->instructions, arch->nr_instructions);
 126         goto out_update_instructions;
 127 }
 128
 129 static int arch__associate_ins_ops(struct arch* arch, const char *name, struct ins_ops *ops)
 130 {
 131         struct ins *ins;
 132
 133         if (arch->nr_instructions == arch->nr_instructions_allocated &&
 134             arch__grow_instructions(arch))
 135                 return -1;
 136
 137         ins = &arch->instructions[arch->nr_instructions];
 138         ins->name = strdup(name);
 139         if (!ins->name)
 140                 return -1;
 141
 142         ins->ops  = ops;
 143         arch->nr_instructions++;
 144
 145         ins__sort(arch);
 146         return 0;
 147 }
 148
 149 #include "arch/arc/annotate/instructions.c"
 150 #include "arch/arm/annotate/instructions.c"
 151 #include "arch/arm64/annotate/instructions.c"
 152 #include "arch/csky/annotate/instructions.c"
 153 #include "arch/mips/annotate/instructions.c"
 154 #include "arch/x86/annotate/instructions.c"
 155 #include "arch/powerpc/annotate/instructions.c"
 156 #include "arch/riscv64/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 = "mips",
 179                 .init = mips__annotate_init,
 180                 .objdump = {
 181                         .comment_char = '#',
 182                 },
 183         },
 184         {
 185                 .name = "x86",
 186                 .init = x86__annotate_init,
 187                 .instructions = x86__instructions,
 188                 .nr_instructions = ARRAY_SIZE(x86__instructions),
 189                 .objdump =  {
 190                         .comment_char = '#',
 191                 },
 192         },
 193         {
 194                 .name = "powerpc",
 195                 .init = powerpc__annotate_init,
 196         },
 197         {
 198                 .name = "riscv64",
 199                 .init = riscv64__annotate_init,
 200         },
 201         {
 202                 .name = "s390",
 203                 .init = s390__annotate_init,
 204                 .objdump =  {
 205                         .comment_char = '#',
 206                 },
 207         },
 208         {
 209                 .name = "sparc",
 210                 .init = sparc__annotate_init,
 211                 .objdump = {
 212                         .comment_char = '#',
 213                 },
 214         },
 215 };
 216
 217 static void ins__delete(struct ins_operands *ops)
 218 {
 219         if (ops == NULL)
 220                 return;
 221         zfree(&ops->source.raw);
 222         zfree(&ops->source.name);
 223         zfree(&ops->target.raw);
 224         zfree(&ops->target.name);
 225 }
 226
 227 static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size,
 228                               struct ins_operands *ops, int max_ins_name)
 229 {
 230         return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->raw);
 231 }
 232
 233 int ins__scnprintf(struct ins *ins, char *bf, size_t size,
 234                    struct ins_operands *ops, int max_ins_name)
 235 {
 236         if (ins->ops->scnprintf)
 237                 return ins->ops->scnprintf(ins, bf, size, ops, max_ins_name);
 238
 239         return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
 240 }
 241
 242 bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2)
 243 {
 244         if (!arch || !arch->ins_is_fused)
 245                 return false;
 246
 247         return arch->ins_is_fused(arch, ins1, ins2);
 248 }
 249
 250 static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
 251 {
 252         char *endptr, *tok, *name;
 253         struct map *map = ms->map;
 254         struct addr_map_symbol target = {
 255                 .ms = { .map = map, },
 256         };
 257
 258         ops->target.addr = strtoull(ops->raw, &endptr, 16);
 259
 260         name = strchr(endptr, '<');
 261         if (name == NULL)
 262                 goto indirect_call;
 263
 264         name++;
 265
 266         if (arch->objdump.skip_functions_char &&
 267             strchr(name, arch->objdump.skip_functions_char))
 268                 return -1;
 269
 270         tok = strchr(name, '>');
 271         if (tok == NULL)
 272                 return -1;
 273
 274         *tok = '\0';
 275         ops->target.name = strdup(name);
 276         *tok = '>';
 277
 278         if (ops->target.name == NULL)
 279                 return -1;
 280 find_target:
 281         target.addr = map__objdump_2mem(map, ops->target.addr);
 282
 283         if (maps__find_ams(ms->maps, &target) == 0 &&
 284             map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr)
 285                 ops->target.sym = target.ms.sym;
 286
 287         return 0;
 288
 289 indirect_call:
 290         tok = strchr(endptr, '*');
 291         if (tok != NULL) {
 292                 endptr++;
 293
 294                 /* Indirect call can use a non-rip register and offset: callq  *0x8(%rbx).
 295                  * Do not parse such instruction.  */
 296                 if (strstr(endptr, "(%r") == NULL)
 297                         ops->target.addr = strtoull(endptr, NULL, 16);
 298         }
 299         goto find_target;
 300 }
 301
 302 static int call__scnprintf(struct ins *ins, char *bf, size_t size,
 303                            struct ins_operands *ops, int max_ins_name)
 304 {
 305         if (ops->target.sym)
 306                 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name);
 307
 308         if (ops->target.addr == 0)
 309                 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
 310
 311         if (ops->target.name)
 312                 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.name);
 313
 314         return scnprintf(bf, size, "%-*s *%" PRIx64, max_ins_name, ins->name, ops->target.addr);
 315 }
 316
 317 static struct ins_ops call_ops = {
 318         .parse     = call__parse,
 319         .scnprintf = call__scnprintf,
 320 };
 321
 322 bool ins__is_call(const struct ins *ins)
 323 {
 324         return ins->ops == &call_ops || ins->ops == &s390_call_ops;
 325 }
 326
 327 /*
 328  * Prevents from matching commas in the comment section, e.g.:
 329  * ffff200008446e70:       b.cs    ffff2000084470f4 <generic_exec_single+0x314>  // b.hs, b.nlast
 330  *
 331  * and skip comma as part of function arguments, e.g.:
 332  * 1d8b4ac <linemap_lookup(line_maps const*, unsigned int)+0xcc>
 333  */
 334 static inline const char *validate_comma(const char *c, struct ins_operands *ops)
 335 {
 336         if (ops->raw_comment && c > ops->raw_comment)
 337                 return NULL;
 338
 339         if (ops->raw_func_start && c > ops->raw_func_start)
 340                 return NULL;
 341
 342         return c;
 343 }
 344
 345 static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
 346 {
 347         struct map *map = ms->map;
 348         struct symbol *sym = ms->sym;
 349         struct addr_map_symbol target = {
 350                 .ms = { .map = map, },
 351         };
 352         const char *c = strchr(ops->raw, ',');
 353         u64 start, end;
 354
 355         ops->raw_comment = strchr(ops->raw, arch->objdump.comment_char);
 356         ops->raw_func_start = strchr(ops->raw, '<');
 357
 358         c = validate_comma(c, ops);
 359
 360         /*
 361          * Examples of lines to parse for the _cpp_lex_token@@Base
 362          * function:
 363          *
 364          * 1159e6c: jne    115aa32 <_cpp_lex_token@@Base+0xf92>
 365          * 1159e8b: jne    c469be <cpp_named_operator2name@@Base+0xa72>
 366          *
 367          * The first is a jump to an offset inside the same function,
 368          * the second is to another function, i.e. that 0xa72 is an
 369          * offset in the cpp_named_operator2name@@base function.
 370          */
 371         /*
 372          * skip over possible up to 2 operands to get to address, e.g.:
 373          * tbnz  w0, #26, ffff0000083cd190 <security_file_permission+0xd0>
 374          */
 375         if (c++ != NULL) {
 376                 ops->target.addr = strtoull(c, NULL, 16);
 377                 if (!ops->target.addr) {
 378                         c = strchr(c, ',');
 379                         c = validate_comma(c, ops);
 380                         if (c++ != NULL)
 381                                 ops->target.addr = strtoull(c, NULL, 16);
 382                 }
 383         } else {
 384                 ops->target.addr = strtoull(ops->raw, NULL, 16);
 385         }
 386
 387         target.addr = map__objdump_2mem(map, ops->target.addr);
 388         start = map->unmap_ip(map, sym->start),
 389         end = map->unmap_ip(map, sym->end);
 390
 391         ops->target.outside = target.addr < start || target.addr > end;
 392
 393         /*
 394          * FIXME: things like this in _cpp_lex_token (gcc's cc1 program):
 395
 396                 cpp_named_operator2name@@Base+0xa72
 397
 398          * Point to a place that is after the cpp_named_operator2name
 399          * boundaries, i.e.  in the ELF symbol table for cc1
 400          * cpp_named_operator2name is marked as being 32-bytes long, but it in
 401          * fact is much larger than that, so we seem to need a symbols__find()
 402          * routine that looks for >= current->start and  < next_symbol->start,
 403          * possibly just for C++ objects?
 404          *
 405          * For now lets just make some progress by marking jumps to outside the
 406          * current function as call like.
 407          *
 408          * Actual navigation will come next, with further understanding of how
 409          * the symbol searching and disassembly should be done.
 410          */
 411         if (maps__find_ams(ms->maps, &target) == 0 &&
 412             map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr)
 413                 ops->target.sym = target.ms.sym;
 414
 415         if (!ops->target.outside) {
 416                 ops->target.offset = target.addr - start;
 417                 ops->target.offset_avail = true;
 418         } else {
 419                 ops->target.offset_avail = false;
 420         }
 421
 422         return 0;
 423 }
 424
 425 static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
 426                            struct ins_operands *ops, int max_ins_name)
 427 {
 428         const char *c;
 429
 430         if (!ops->target.addr || ops->target.offset < 0)
 431                 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
 432
 433         if (ops->target.outside && ops->target.sym != NULL)
 434                 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name);
 435
 436         c = strchr(ops->raw, ',');
 437         c = validate_comma(c, ops);
 438
 439         if (c != NULL) {
 440                 const char *c2 = strchr(c + 1, ',');
 441
 442                 c2 = validate_comma(c2, ops);
 443                 /* check for 3-op insn */
 444                 if (c2 != NULL)
 445                         c = c2;
 446                 c++;
 447
 448                 /* mirror arch objdump's space-after-comma style */
 449                 if (*c == ' ')
 450                         c++;
 451         }
 452
 453         return scnprintf(bf, size, "%-*s %.*s%" PRIx64, max_ins_name,
 454                          ins->name, c ? c - ops->raw : 0, ops->raw,
 455                          ops->target.offset);
 456 }
 457
 458 static struct ins_ops jump_ops = {
 459         .parse     = jump__parse,
 460         .scnprintf = jump__scnprintf,
 461 };
 462
 463 bool ins__is_jump(const struct ins *ins)
 464 {
 465         return ins->ops == &jump_ops;
 466 }
 467
 468 static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep)
 469 {
 470         char *endptr, *name, *t;
 471
 472         if (strstr(raw, "(%rip)") == NULL)
 473                 return 0;
 474
 475         *addrp = strtoull(comment, &endptr, 16);
 476         if (endptr == comment)
 477                 return 0;
 478         name = strchr(endptr, '<');
 479         if (name == NULL)
 480                 return -1;
 481
 482         name++;
 483
 484         t = strchr(name, '>');
 485         if (t == NULL)
 486                 return 0;
 487
 488         *t = '\0';
 489         *namep = strdup(name);
 490         *t = '>';
 491
 492         return 0;
 493 }
 494
 495 static int lock__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
 496 {
 497         ops->locked.ops = zalloc(sizeof(*ops->locked.ops));
 498         if (ops->locked.ops == NULL)
 499                 return 0;
 500
 501         if (disasm_line__parse(ops->raw, &ops->locked.ins.name, &ops->locked.ops->raw) < 0)
 502                 goto out_free_ops;
 503
 504         ops->locked.ins.ops = ins__find(arch, ops->locked.ins.name);
 505
 506         if (ops->locked.ins.ops == NULL)
 507                 goto out_free_ops;
 508
 509         if (ops->locked.ins.ops->parse &&
 510             ops->locked.ins.ops->parse(arch, ops->locked.ops, ms) < 0)
 511                 goto out_free_ops;
 512
 513         return 0;
 514
 515 out_free_ops:
 516         zfree(&ops->locked.ops);
 517         return 0;
 518 }
 519
 520 static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
 521                            struct ins_operands *ops, int max_ins_name)
 522 {
 523         int printed;
 524
 525         if (ops->locked.ins.ops == NULL)
 526                 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
 527
 528         printed = scnprintf(bf, size, "%-*s ", max_ins_name, ins->name);
 529         return printed + ins__scnprintf(&ops->locked.ins, bf + printed,
 530                                         size - printed, ops->locked.ops, max_ins_name);
 531 }
 532
 533 static void lock__delete(struct ins_operands *ops)
 534 {
 535         struct ins *ins = &ops->locked.ins;
 536
 537         if (ins->ops && ins->ops->free)
 538                 ins->ops->free(ops->locked.ops);
 539         else
 540                 ins__delete(ops->locked.ops);
 541
 542         zfree(&ops->locked.ops);
 543         zfree(&ops->target.raw);
 544         zfree(&ops->target.name);
 545 }
 546
 547 static struct ins_ops lock_ops = {
 548         .free      = lock__delete,
 549         .parse     = lock__parse,
 550         .scnprintf = lock__scnprintf,
 551 };
 552
 553 static int mov__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)
 554 {
 555         char *s = strchr(ops->raw, ','), *target, *comment, prev;
 556
 557         if (s == NULL)
 558                 return -1;
 559
 560         *s = '\0';
 561         ops->source.raw = strdup(ops->raw);
 562         *s = ',';
 563
 564         if (ops->source.raw == NULL)
 565                 return -1;
 566
 567         target = ++s;
 568         comment = strchr(s, arch->objdump.comment_char);
 569
 570         if (comment != NULL)
 571                 s = comment - 1;
 572         else
 573                 s = strchr(s, '\0') - 1;
 574
 575         while (s > target && isspace(s[0]))
 576                 --s;
 577         s++;
 578         prev = *s;
 579         *s = '\0';
 580
 581         ops->target.raw = strdup(target);
 582         *s = prev;
 583
 584         if (ops->target.raw == NULL)
 585                 goto out_free_source;
 586
 587         if (comment == NULL)
 588                 return 0;
 589
 590         comment = skip_spaces(comment);
 591         comment__symbol(ops->source.raw, comment + 1, &ops->source.addr, &ops->source.name);
 592         comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name);
 593
 594         return 0;
 595
 596 out_free_source:
 597         zfree(&ops->source.raw);
 598         return -1;
 599 }
 600
 601 static int mov__scnprintf(struct ins *ins, char *bf, size_t size,
 602                            struct ins_operands *ops, int max_ins_name)
 603 {
 604         return scnprintf(bf, size, "%-*s %s,%s", max_ins_name, ins->name,
 605                          ops->source.name ?: ops->source.raw,
 606                          ops->target.name ?: ops->target.raw);
 607 }
 608
 609 static struct ins_ops mov_ops = {
 610         .parse     = mov__parse,
 611         .scnprintf = mov__scnprintf,
 612 };
 613
 614 static int dec__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)
 615 {
 616         char *target, *comment, *s, prev;
 617
 618         target = s = ops->raw;
 619
 620         while (s[0] != '\0' && !isspace(s[0]))
 621                 ++s;
 622         prev = *s;
 623         *s = '\0';
 624
 625         ops->target.raw = strdup(target);
 626         *s = prev;
 627
 628         if (ops->target.raw == NULL)
 629                 return -1;
 630
 631         comment = strchr(s, arch->objdump.comment_char);
 632         if (comment == NULL)
 633                 return 0;
 634
 635         comment = skip_spaces(comment);
 636         comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name);
 637
 638         return 0;
 639 }
 640
 641 static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
 642                            struct ins_operands *ops, int max_ins_name)
 643 {
 644         return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name,
 645                          ops->target.name ?: ops->target.raw);
 646 }
 647
 648 static struct ins_ops dec_ops = {
 649         .parse     = dec__parse,
 650         .scnprintf = dec__scnprintf,
 651 };
 652
 653 static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size,
 654                           struct ins_operands *ops __maybe_unused, int max_ins_name)
 655 {
 656         return scnprintf(bf, size, "%-*s", max_ins_name, "nop");
 657 }
 658
 659 static struct ins_ops nop_ops = {
 660         .scnprintf = nop__scnprintf,
 661 };
 662
 663 static struct ins_ops ret_ops = {
 664         .scnprintf = ins__raw_scnprintf,
 665 };
 666
 667 bool ins__is_ret(const struct ins *ins)
 668 {
 669         return ins->ops == &ret_ops;
 670 }
 671
 672 bool ins__is_lock(const struct ins *ins)
 673 {
 674         return ins->ops == &lock_ops;
 675 }
 676
 677 static int ins__key_cmp(const void *name, const void *insp)
 678 {
 679         const struct ins *ins = insp;
 680
 681         return strcmp(name, ins->name);
 682 }
 683
 684 static int ins__cmp(const void *a, const void *b)
 685 {
 686         const struct ins *ia = a;
 687         const struct ins *ib = b;
 688
 689         return strcmp(ia->name, ib->name);
 690 }
 691
 692 static void ins__sort(struct arch *arch)
 693 {
 694         const int nmemb = arch->nr_instructions;
 695
 696         qsort(arch->instructions, nmemb, sizeof(struct ins), ins__cmp);
 697 }
 698
 699 static struct ins_ops *__ins__find(struct arch *arch, const char *name)
 700 {
 701         struct ins *ins;
 702         const int nmemb = arch->nr_instructions;
 703
 704         if (!arch->sorted_instructions) {
 705                 ins__sort(arch);
 706                 arch->sorted_instructions = true;
 707         }
 708
 709         ins = bsearch(name, arch->instructions, nmemb, sizeof(struct ins), ins__key_cmp);
 710         return ins ? ins->ops : NULL;
 711 }
 712
 713 static struct ins_ops *ins__find(struct arch *arch, const char *name)
 714 {
 715         struct ins_ops *ops = __ins__find(arch, name);
 716
 717         if (!ops && arch->associate_instruction_ops)
 718                 ops = arch->associate_instruction_ops(arch, name);
 719
 720         return ops;
 721 }
 722
 723 static int arch__key_cmp(const void *name, const void *archp)
 724 {
 725         const struct arch *arch = archp;
 726
 727         return strcmp(name, arch->name);
 728 }
 729
 730 static int arch__cmp(const void *a, const void *b)
 731 {
 732         const struct arch *aa = a;
 733         const struct arch *ab = b;
 734
 735         return strcmp(aa->name, ab->name);
 736 }
 737
 738 static void arch__sort(void)
 739 {
 740         const int nmemb = ARRAY_SIZE(architectures);
 741
 742         qsort(architectures, nmemb, sizeof(struct arch), arch__cmp);
 743 }
 744
 745 static struct arch *arch__find(const char *name)
 746 {
 747         const int nmemb = ARRAY_SIZE(architectures);
 748         static bool sorted;
 749
 750         if (!sorted) {
 751                 arch__sort();
 752                 sorted = true;
 753         }
 754
 755         return bsearch(name, architectures, nmemb, sizeof(struct arch), arch__key_cmp);
 756 }
 757
 758 static struct annotated_source *annotated_source__new(void)
 759 {
 760         struct annotated_source *src = zalloc(sizeof(*src));
 761
 762         if (src != NULL)
 763                 INIT_LIST_HEAD(&src->source);
 764
 765         return src;
 766 }
 767
 768 static __maybe_unused void annotated_source__delete(struct annotated_source *src)
 769 {
 770         if (src == NULL)
 771                 return;
 772         zfree(&src->histograms);
 773         zfree(&src->cycles_hist);
 774         free(src);
 775 }
 776
 777 static int annotated_source__alloc_histograms(struct annotated_source *src,
 778                                               size_t size, int nr_hists)
 779 {
 780         size_t sizeof_sym_hist;
 781
 782         /*
 783          * Add buffer of one element for zero length symbol.
 784          * When sample is taken from first instruction of
 785          * zero length symbol, perf still resolves it and
 786          * shows symbol name in perf report and allows to
 787          * annotate it.
 788          */
 789         if (size == 0)
 790                 size = 1;
 791
 792         /* Check for overflow when calculating sizeof_sym_hist */
 793         if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(struct sym_hist_entry))
 794                 return -1;
 795
 796         sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(struct sym_hist_entry));
 797
 798         /* Check for overflow in zalloc argument */
 799         if (sizeof_sym_hist > SIZE_MAX / nr_hists)
 800                 return -1;
 801
 802         src->sizeof_sym_hist = sizeof_sym_hist;
 803         src->nr_histograms   = nr_hists;
 804         src->histograms      = calloc(nr_hists, sizeof_sym_hist) ;
 805         return src->histograms ? 0 : -1;
 806 }
 807
 808 /* The cycles histogram is lazily allocated. */
 809 static int symbol__alloc_hist_cycles(struct symbol *sym)
 810 {
 811         struct annotation *notes = symbol__annotation(sym);
 812         const size_t size = symbol__size(sym);
 813
 814         notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist));
 815         if (notes->src->cycles_hist == NULL)
 816                 return -1;
 817         return 0;
 818 }
 819
 820 void symbol__annotate_zero_histograms(struct symbol *sym)
 821 {
 822         struct annotation *notes = symbol__annotation(sym);
 823
 824         pthread_mutex_lock(&notes->lock);
 825         if (notes->src != NULL) {
 826                 memset(notes->src->histograms, 0,
 827                        notes->src->nr_histograms * notes->src->sizeof_sym_hist);
 828                 if (notes->src->cycles_hist)
 829                         memset(notes->src->cycles_hist, 0,
 830                                 symbol__size(sym) * sizeof(struct cyc_hist));
 831         }
 832         pthread_mutex_unlock(&notes->lock);
 833 }
 834
 835 static int __symbol__account_cycles(struct cyc_hist *ch,
 836                                     u64 start,
 837                                     unsigned offset, unsigned cycles,
 838                                     unsigned have_start)
 839 {
 840         /*
 841          * For now we can only account one basic block per
 842          * final jump. But multiple could be overlapping.
 843          * Always account the longest one. So when
 844          * a shorter one has been already seen throw it away.
 845          *
 846          * We separately always account the full cycles.
 847          */
 848         ch[offset].num_aggr++;
 849         ch[offset].cycles_aggr += cycles;
 850
 851         if (cycles > ch[offset].cycles_max)
 852                 ch[offset].cycles_max = cycles;
 853
 854         if (ch[offset].cycles_min) {
 855                 if (cycles && cycles < ch[offset].cycles_min)
 856                         ch[offset].cycles_min = cycles;
 857         } else
 858                 ch[offset].cycles_min = cycles;
 859
 860         if (!have_start && ch[offset].have_start)
 861                 return 0;
 862         if (ch[offset].num) {
 863                 if (have_start && (!ch[offset].have_start ||
 864                                    ch[offset].start > start)) {
 865                         ch[offset].have_start = 0;
 866                         ch[offset].cycles = 0;
 867                         ch[offset].num = 0;
 868                         if (ch[offset].reset < 0xffff)
 869                                 ch[offset].reset++;
 870                 } else if (have_start &&
 871                            ch[offset].start < start)
 872                         return 0;
 873         }
 874
 875         if (ch[offset].num < NUM_SPARKS)
 876                 ch[offset].cycles_spark[ch[offset].num] = cycles;
 877
 878         ch[offset].have_start = have_start;
 879         ch[offset].start = start;
 880         ch[offset].cycles += cycles;
 881         ch[offset].num++;
 882         return 0;
 883 }
 884
 885 static int __symbol__inc_addr_samples(struct map_symbol *ms,
 886                                       struct annotated_source *src, int evidx, u64 addr,
 887                                       struct perf_sample *sample)
 888 {
 889         struct symbol *sym = ms->sym;
 890         unsigned offset;
 891         struct sym_hist *h;
 892
 893         pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, ms->map->unmap_ip(ms->map, addr));
 894
 895         if ((addr < sym->start || addr >= sym->end) &&
 896             (addr != sym->end || sym->start != sym->end)) {
 897                 pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n",
 898                        __func__, __LINE__, sym->name, sym->start, addr, sym->end);
 899                 return -ERANGE;
 900         }
 901
 902         offset = addr - sym->start;
 903         h = annotated_source__histogram(src, evidx);
 904         if (h == NULL) {
 905                 pr_debug("%s(%d): ENOMEM! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 ", func: %d\n",
 906                          __func__, __LINE__, sym->name, sym->start, addr, sym->end, sym->type == STT_FUNC);
 907                 return -ENOMEM;
 908         }
 909         h->nr_samples++;
 910         h->addr[offset].nr_samples++;
 911         h->period += sample->period;
 912         h->addr[offset].period += sample->period;
 913
 914         pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64
 915                   ", evidx=%d] => nr_samples: %" PRIu64 ", period: %" PRIu64 "\n",
 916                   sym->start, sym->name, addr, addr - sym->start, evidx,
 917                   h->addr[offset].nr_samples, h->addr[offset].period);
 918         return 0;
 919 }
 920
 921 static struct cyc_hist *symbol__cycles_hist(struct symbol *sym)
 922 {
 923         struct annotation *notes = symbol__annotation(sym);
 924
 925         if (notes->src == NULL) {
 926                 notes->src = annotated_source__new();
 927                 if (notes->src == NULL)
 928                         return NULL;
 929                 goto alloc_cycles_hist;
 930         }
 931
 932         if (!notes->src->cycles_hist) {
 933 alloc_cycles_hist:
 934                 symbol__alloc_hist_cycles(sym);
 935         }
 936
 937         return notes->src->cycles_hist;
 938 }
 939
 940 struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists)
 941 {
 942         struct annotation *notes = symbol__annotation(sym);
 943
 944         if (notes->src == NULL) {
 945                 notes->src = annotated_source__new();
 946                 if (notes->src == NULL)
 947                         return NULL;
 948                 goto alloc_histograms;
 949         }
 950
 951         if (notes->src->histograms == NULL) {
 952 alloc_histograms:
 953                 annotated_source__alloc_histograms(notes->src, symbol__size(sym),
 954                                                    nr_hists);
 955         }
 956
 957         return notes->src;
 958 }
 959
 960 static int symbol__inc_addr_samples(struct map_symbol *ms,
 961                                     struct evsel *evsel, u64 addr,
 962                                     struct perf_sample *sample)
 963 {
 964         struct symbol *sym = ms->sym;
 965         struct annotated_source *src;
 966
 967         if (sym == NULL)
 968                 return 0;
 969         src = symbol__hists(sym, evsel->evlist->core.nr_entries);
 970         return src ? __symbol__inc_addr_samples(ms, src, evsel->core.idx, addr, sample) : 0;
 971 }
 972
 973 static int symbol__account_cycles(u64 addr, u64 start,
 974                                   struct symbol *sym, unsigned cycles)
 975 {
 976         struct cyc_hist *cycles_hist;
 977         unsigned offset;
 978
 979         if (sym == NULL)
 980                 return 0;
 981         cycles_hist = symbol__cycles_hist(sym);
 982         if (cycles_hist == NULL)
 983                 return -ENOMEM;
 984         if (addr < sym->start || addr >= sym->end)
 985                 return -ERANGE;
 986
 987         if (start) {
 988                 if (start < sym->start || start >= sym->end)
 989                         return -ERANGE;
 990                 if (start >= addr)
 991                         start = 0;
 992         }
 993         offset = addr - sym->start;
 994         return __symbol__account_cycles(cycles_hist,
 995                                         start ? start - sym->start : 0,
 996                                         offset, cycles,
 997                                         !!start);
 998 }
 999
1000 int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
1001                                     struct addr_map_symbol *start,
1002                                     unsigned cycles)
1003 {
1004         u64 saddr = 0;
1005         int err;
1006
1007         if (!cycles)
1008                 return 0;
1009
1010         /*
1011          * Only set start when IPC can be computed. We can only
1012          * compute it when the basic block is completely in a single
1013          * function.
1014          * Special case the case when the jump is elsewhere, but
1015          * it starts on the function start.
1016          */
1017         if (start &&
1018                 (start->ms.sym == ams->ms.sym ||
1019                  (ams->ms.sym &&
1020                    start->addr == ams->ms.sym->start + ams->ms.map->start)))
1021                 saddr = start->al_addr;
1022         if (saddr == 0)
1023                 pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n",
1024                         ams->addr,
1025                         start ? start->addr : 0,
1026                         ams->ms.sym ? ams->ms.sym->start + ams->ms.map->start : 0,
1027                         saddr);
1028         err = symbol__account_cycles(ams->al_addr, saddr, ams->ms.sym, cycles);
1029         if (err)
1030                 pr_debug2("account_cycles failed %d\n", err);
1031         return err;
1032 }
1033
1034 static unsigned annotation__count_insn(struct annotation *notes, u64 start, u64 end)
1035 {
1036         unsigned n_insn = 0;
1037         u64 offset;
1038
1039         for (offset = start; offset <= end; offset++) {
1040                 if (notes->offsets[offset])
1041                         n_insn++;
1042         }
1043         return n_insn;
1044 }
1045
1046 static void annotation__count_and_fill(struct annotation *notes, u64 start, u64 end, struct cyc_hist *ch)
1047 {
1048         unsigned n_insn;
1049         unsigned int cover_insn = 0;
1050         u64 offset;
1051
1052         n_insn = annotation__count_insn(notes, start, end);
1053         if (n_insn && ch->num && ch->cycles) {
1054                 float ipc = n_insn / ((double)ch->cycles / (double)ch->num);
1055
1056                 /* Hide data when there are too many overlaps. */
1057                 if (ch->reset >= 0x7fff)
1058                         return;
1059
1060                 for (offset = start; offset <= end; offset++) {
1061                         struct annotation_line *al = notes->offsets[offset];
1062
1063                         if (al && al->ipc == 0.0) {
1064                                 al->ipc = ipc;
1065                                 cover_insn++;
1066                         }
1067                 }
1068
1069                 if (cover_insn) {
1070                         notes->hit_cycles += ch->cycles;
1071                         notes->hit_insn += n_insn * ch->num;
1072                         notes->cover_insn += cover_insn;
1073                 }
1074         }
1075 }
1076
1077 void annotation__compute_ipc(struct annotation *notes, size_t size)
1078 {
1079         s64 offset;
1080
1081         if (!notes->src || !notes->src->cycles_hist)
1082                 return;
1083
1084         notes->total_insn = annotation__count_insn(notes, 0, size - 1);
1085         notes->hit_cycles = 0;
1086         notes->hit_insn = 0;
1087         notes->cover_insn = 0;
1088
1089         pthread_mutex_lock(&notes->lock);
1090         for (offset = size - 1; offset >= 0; --offset) {
1091                 struct cyc_hist *ch;
1092
1093                 ch = &notes->src->cycles_hist[offset];
1094                 if (ch && ch->cycles) {
1095                         struct annotation_line *al;
1096
1097                         if (ch->have_start)
1098                                 annotation__count_and_fill(notes, ch->start, offset, ch);
1099                         al = notes->offsets[offset];
1100                         if (al && ch->num_aggr) {
1101                                 al->cycles = ch->cycles_aggr / ch->num_aggr;
1102                                 al->cycles_max = ch->cycles_max;
1103                                 al->cycles_min = ch->cycles_min;
1104                         }
1105                         notes->have_cycles = true;
1106                 }
1107         }
1108         pthread_mutex_unlock(&notes->lock);
1109 }
1110
1111 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
1112                                  struct evsel *evsel)
1113 {
1114         return symbol__inc_addr_samples(&ams->ms, evsel, ams->al_addr, sample);
1115 }
1116
1117 int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample,
1118                                  struct evsel *evsel, u64 ip)
1119 {
1120         return symbol__inc_addr_samples(&he->ms, evsel, ip, sample);
1121 }
1122
1123 static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, struct map_symbol *ms)
1124 {
1125         dl->ins.ops = ins__find(arch, dl->ins.name);
1126
1127         if (!dl->ins.ops)
1128                 return;
1129
1130         if (dl->ins.ops->parse && dl->ins.ops->parse(arch, &dl->ops, ms) < 0)
1131                 dl->ins.ops = NULL;
1132 }
1133
1134 static int disasm_line__parse(char *line, const char **namep, char **rawp)
1135 {
1136         char tmp, *name = skip_spaces(line);
1137
1138         if (name[0] == '\0')
1139                 return -1;
1140
1141         *rawp = name + 1;
1142
1143         while ((*rawp)[0] != '\0' && !isspace((*rawp)[0]))
1144                 ++*rawp;
1145
1146         tmp = (*rawp)[0];
1147         (*rawp)[0] = '\0';
1148         *namep = strdup(name);
1149
1150         if (*namep == NULL)
1151                 goto out;
1152
1153         (*rawp)[0] = tmp;
1154         *rawp = strim(*rawp);
1155
1156         return 0;
1157
1158 out:
1159         return -1;
1160 }
1161
1162 struct annotate_args {
1163         struct arch               *arch;
1164         struct map_symbol         ms;
1165         struct evsel              *evsel;
1166         struct annotation_options *options;
1167         s64                       offset;
1168         char                      *line;
1169         int                       line_nr;
1170         char                      *fileloc;
1171 };
1172
1173 static void annotation_line__init(struct annotation_line *al,
1174                                   struct annotate_args *args,
1175                                   int nr)
1176 {
1177         al->offset = args->offset;
1178         al->line = strdup(args->line);
1179         al->line_nr = args->line_nr;
1180         al->fileloc = args->fileloc;
1181         al->data_nr = nr;
1182 }
1183
1184 static void annotation_line__exit(struct annotation_line *al)
1185 {
1186         free_srcline(al->path);
1187         zfree(&al->line);
1188 }
1189
1190 static size_t disasm_line_size(int nr)
1191 {
1192         struct annotation_line *al;
1193
1194         return (sizeof(struct disasm_line) + (sizeof(al->data[0]) * nr));
1195 }
1196
1197 /*
1198  * Allocating the disasm annotation line data with
1199  * following structure:
1200  *
1201  *    -------------------------------------------
1202  *    struct disasm_line | struct annotation_line
1203  *    -------------------------------------------
1204  *
1205  * We have 'struct annotation_line' member as last member
1206  * of 'struct disasm_line' to have an easy access.
1207  */
1208 static struct disasm_line *disasm_line__new(struct annotate_args *args)
1209 {
1210         struct disasm_line *dl = NULL;
1211         int nr = 1;
1212
1213         if (evsel__is_group_event(args->evsel))
1214                 nr = args->evsel->core.nr_members;
1215
1216         dl = zalloc(disasm_line_size(nr));
1217         if (!dl)
1218                 return NULL;
1219
1220         annotation_line__init(&dl->al, args, nr);
1221         if (dl->al.line == NULL)
1222                 goto out_delete;
1223
1224         if (args->offset != -1) {
1225                 if (disasm_line__parse(dl->al.line, &dl->ins.name, &dl->ops.raw) < 0)
1226                         goto out_free_line;
1227
1228                 disasm_line__init_ins(dl, args->arch, &args->ms);
1229         }
1230
1231         return dl;
1232
1233 out_free_line:
1234         zfree(&dl->al.line);
1235 out_delete:
1236         free(dl);
1237         return NULL;
1238 }
1239
1240 void disasm_line__free(struct disasm_line *dl)
1241 {
1242         if (dl->ins.ops && dl->ins.ops->free)
1243                 dl->ins.ops->free(&dl->ops);
1244         else
1245                 ins__delete(&dl->ops);
1246         zfree(&dl->ins.name);
1247         annotation_line__exit(&dl->al);
1248         free(dl);
1249 }
1250
1251 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw, int max_ins_name)
1252 {
1253         if (raw || !dl->ins.ops)
1254                 return scnprintf(bf, size, "%-*s %s", max_ins_name, dl->ins.name, dl->ops.raw);
1255
1256         return ins__scnprintf(&dl->ins, bf, size, &dl->ops, max_ins_name);
1257 }
1258
1259 void annotation__init(struct annotation *notes)
1260 {
1261         pthread_mutex_init(&notes->lock, NULL);
1262 }
1263
1264 void annotation__exit(struct annotation *notes)
1265 {
1266         annotated_source__delete(notes->src);
1267         pthread_mutex_destroy(&notes->lock);
1268 }
1269
1270 static void annotation_line__add(struct annotation_line *al, struct list_head *head)
1271 {
1272         list_add_tail(&al->node, head);
1273 }
1274
1275 struct annotation_line *
1276 annotation_line__next(struct annotation_line *pos, struct list_head *head)
1277 {
1278         list_for_each_entry_continue(pos, head, node)
1279                 if (pos->offset >= 0)
1280                         return pos;
1281
1282         return NULL;
1283 }
1284
1285 static const char *annotate__address_color(struct block_range *br)
1286 {
1287         double cov = block_range__coverage(br);
1288
1289         if (cov >= 0) {
1290                 /* mark red for >75% coverage */
1291                 if (cov > 0.75)
1292                         return PERF_COLOR_RED;
1293
1294                 /* mark dull for <1% coverage */
1295                 if (cov < 0.01)
1296                         return PERF_COLOR_NORMAL;
1297         }
1298
1299         return PERF_COLOR_MAGENTA;
1300 }
1301
1302 static const char *annotate__asm_color(struct block_range *br)
1303 {
1304         double cov = block_range__coverage(br);
1305
1306         if (cov >= 0) {
1307                 /* mark dull for <1% coverage */
1308                 if (cov < 0.01)
1309                         return PERF_COLOR_NORMAL;
1310         }
1311
1312         return PERF_COLOR_BLUE;
1313 }
1314
1315 static void annotate__branch_printf(struct block_range *br, u64 addr)
1316 {
1317         bool emit_comment = true;
1318
1319         if (!br)
1320                 return;
1321
1322 #if 1
1323         if (br->is_target && br->start == addr) {
1324                 struct block_range *branch = br;
1325                 double p;
1326
1327                 /*
1328                  * Find matching branch to our target.
1329                  */
1330                 while (!branch->is_branch)
1331                         branch = block_range__next(branch);
1332
1333                 p = 100 *(double)br->entry / branch->coverage;
1334
1335                 if (p > 0.1) {
1336                         if (emit_comment) {
1337                                 emit_comment = false;
1338                                 printf("\t#");
1339                         }
1340
1341                         /*
1342                          * The percentage of coverage joined at this target in relation
1343                          * to the next branch.
1344                          */
1345                         printf(" +%.2f%%", p);
1346                 }
1347         }
1348 #endif
1349         if (br->is_branch && br->end == addr) {
1350                 double p = 100*(double)br->taken / br->coverage;
1351
1352                 if (p > 0.1) {
1353                         if (emit_comment) {
1354                                 emit_comment = false;
1355                                 printf("\t#");
1356                         }
1357
1358                         /*
1359                          * The percentage of coverage leaving at this branch, and
1360                          * its prediction ratio.
1361                          */
1362                         printf(" -%.2f%% (p:%.2f%%)", p, 100*(double)br->pred  / br->taken);
1363                 }
1364         }
1365 }
1366
1367 static int disasm_line__print(struct disasm_line *dl, u64 start, int addr_fmt_width)
1368 {
1369         s64 offset = dl->al.offset;
1370         const u64 addr = start + offset;
1371         struct block_range *br;
1372
1373         br = block_range__find(addr);
1374         color_fprintf(stdout, annotate__address_color(br), "  %*" PRIx64 ":", addr_fmt_width, addr);
1375         color_fprintf(stdout, annotate__asm_color(br), "%s", dl->al.line);
1376         annotate__branch_printf(br, addr);
1377         return 0;
1378 }
1379
1380 static int
1381 annotation_line__print(struct annotation_line *al, struct symbol *sym, u64 start,
1382                        struct evsel *evsel, u64 len, int min_pcnt, int printed,
1383                        int max_lines, struct annotation_line *queue, int addr_fmt_width,
1384                        int percent_type)
1385 {
1386         struct disasm_line *dl = container_of(al, struct disasm_line, al);
1387         static const char *prev_line;
1388
1389         if (al->offset != -1) {
1390                 double max_percent = 0.0;
1391                 int i, nr_percent = 1;
1392                 const char *color;
1393                 struct annotation *notes = symbol__annotation(sym);
1394
1395                 for (i = 0; i < al->data_nr; i++) {
1396                         double percent;
1397
1398                         percent = annotation_data__percent(&al->data[i],
1399                                                            percent_type);
1400
1401                         if (percent > max_percent)
1402                                 max_percent = percent;
1403                 }
1404
1405                 if (al->data_nr > nr_percent)
1406                         nr_percent = al->data_nr;
1407
1408                 if (max_percent < min_pcnt)
1409                         return -1;
1410
1411                 if (max_lines && printed >= max_lines)
1412                         return 1;
1413
1414                 if (queue != NULL) {
1415                         list_for_each_entry_from(queue, &notes->src->source, node) {
1416                                 if (queue == al)
1417                                         break;
1418                                 annotation_line__print(queue, sym, start, evsel, len,
1419                                                        0, 0, 1, NULL, addr_fmt_width,
1420                                                        percent_type);
1421                         }
1422                 }
1423
1424                 color = get_percent_color(max_percent);
1425
1426                 for (i = 0; i < nr_percent; i++) {
1427                         struct annotation_data *data = &al->data[i];
1428                         double percent;
1429
1430                         percent = annotation_data__percent(data, percent_type);
1431                         color = get_percent_color(percent);
1432
1433                         if (symbol_conf.show_total_period)
1434                                 color_fprintf(stdout, color, " %11" PRIu64,
1435                                               data->he.period);
1436                         else if (symbol_conf.show_nr_samples)
1437                                 color_fprintf(stdout, color, " %7" PRIu64,
1438                                               data->he.nr_samples);
1439                         else
1440                                 color_fprintf(stdout, color, " %7.2f", percent);
1441                 }
1442
1443                 printf(" : ");
1444
1445                 disasm_line__print(dl, start, addr_fmt_width);
1446
1447                 /*
1448                  * Also color the filename and line if needed, with
1449                  * the same color than the percentage. Don't print it
1450                  * twice for close colored addr with the same filename:line
1451                  */
1452                 if (al->path) {
1453                         if (!prev_line || strcmp(prev_line, al->path)) {
1454                                 color_fprintf(stdout, color, " // %s", al->path);
1455                                 prev_line = al->path;
1456                         }
1457                 }
1458
1459                 printf("\n");
1460         } else if (max_lines && printed >= max_lines)
1461                 return 1;
1462         else {
1463                 int width = symbol_conf.show_total_period ? 12 : 8;
1464
1465                 if (queue)
1466                         return -1;
1467
1468                 if (evsel__is_group_event(evsel))
1469                         width *= evsel->core.nr_members;
1470
1471                 if (!*al->line)
1472                         printf(" %*s:\n", width, " ");
1473                 else
1474                         printf(" %*s: %-*d %s\n", width, " ", addr_fmt_width, al->line_nr, al->line);
1475         }
1476
1477         return 0;
1478 }
1479
1480 /*
1481  * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw)
1482  * which looks like following
1483  *
1484  *  0000000000415500 <_init>:
1485  *    415500:       sub    $0x8,%rsp
1486  *    415504:       mov    0x2f5ad5(%rip),%rax        # 70afe0 <_DYNAMIC+0x2f8>
1487  *    41550b:       test   %rax,%rax
1488  *    41550e:       je     415515 <_init+0x15>
1489  *    415510:       callq  416e70 <__gmon_start__@plt>
1490  *    415515:       add    $0x8,%rsp
1491  *    415519:       retq
1492  *
1493  * it will be parsed and saved into struct disasm_line as
1494  *  <offset>       <name>  <ops.raw>
1495  *
1496  * The offset will be a relative offset from the start of the symbol and -1
1497  * means that it's not a disassembly line so should be treated differently.
1498  * The ops.raw part will be parsed further according to type of the instruction.
1499  */
1500 static int symbol__parse_objdump_line(struct symbol *sym,
1501                                       struct annotate_args *args,
1502                                       char *parsed_line, int *line_nr, char **fileloc)
1503 {
1504         struct map *map = args->ms.map;
1505         struct annotation *notes = symbol__annotation(sym);
1506         struct disasm_line *dl;
1507         char *tmp;
1508         s64 line_ip, offset = -1;
1509         regmatch_t match[2];
1510
1511         /* /filename:linenr ? Save line number and ignore. */
1512         if (regexec(&file_lineno, parsed_line, 2, match, 0) == 0) {
1513                 *line_nr = atoi(parsed_line + match[1].rm_so);
1514                 *fileloc = strdup(parsed_line);
1515                 return 0;
1516         }
1517
1518         /* Process hex address followed by ':'. */
1519         line_ip = strtoull(parsed_line, &tmp, 16);
1520         if (parsed_line != tmp && tmp[0] == ':' && tmp[1] != '\0') {
1521                 u64 start = map__rip_2objdump(map, sym->start),
1522                     end = map__rip_2objdump(map, sym->end);
1523
1524                 offset = line_ip - start;
1525                 if ((u64)line_ip < start || (u64)line_ip >= end)
1526                         offset = -1;
1527                 else
1528                         parsed_line = tmp + 1;
1529         }
1530
1531         args->offset  = offset;
1532         args->line    = parsed_line;
1533         args->line_nr = *line_nr;
1534         args->fileloc = *fileloc;
1535         args->ms.sym  = sym;
1536
1537         dl = disasm_line__new(args);
1538         (*line_nr)++;
1539
1540         if (dl == NULL)
1541                 return -1;
1542
1543         if (!disasm_line__has_local_offset(dl)) {
1544                 dl->ops.target.offset = dl->ops.target.addr -
1545                                         map__rip_2objdump(map, sym->start);
1546                 dl->ops.target.offset_avail = true;
1547         }
1548
1549         /* kcore has no symbols, so add the call target symbol */
1550         if (dl->ins.ops && ins__is_call(&dl->ins) && !dl->ops.target.sym) {
1551                 struct addr_map_symbol target = {
1552                         .addr = dl->ops.target.addr,
1553                         .ms = { .map = map, },
1554                 };
1555
1556                 if (!maps__find_ams(args->ms.maps, &target) &&
1557                     target.ms.sym->start == target.al_addr)
1558                         dl->ops.target.sym = target.ms.sym;
1559         }
1560
1561         annotation_line__add(&dl->al, &notes->src->source);
1562
1563         return 0;
1564 }
1565
1566 static __attribute__((constructor)) void symbol__init_regexpr(void)
1567 {
1568         regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED);
1569 }
1570
1571 static void delete_last_nop(struct symbol *sym)
1572 {
1573         struct annotation *notes = symbol__annotation(sym);
1574         struct list_head *list = &notes->src->source;
1575         struct disasm_line *dl;
1576
1577         while (!list_empty(list)) {
1578                 dl = list_entry(list->prev, struct disasm_line, al.node);
1579
1580                 if (dl->ins.ops) {
1581                         if (dl->ins.ops != &nop_ops)
1582                                 return;
1583                 } else {
1584                         if (!strstr(dl->al.line, " nop ") &&
1585                             !strstr(dl->al.line, " nopl ") &&
1586                             !strstr(dl->al.line, " nopw "))
1587                                 return;
1588                 }
1589
1590                 list_del_init(&dl->al.node);
1591                 disasm_line__free(dl);
1592         }
1593 }
1594
1595 int symbol__strerror_disassemble(struct map_symbol *ms, int errnum, char *buf, size_t buflen)
1596 {
1597         struct dso *dso = ms->map->dso;
1598
1599         BUG_ON(buflen == 0);
1600
1601         if (errnum >= 0) {
1602                 str_error_r(errnum, buf, buflen);
1603                 return 0;
1604         }
1605
1606         switch (errnum) {
1607         case SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX: {
1608                 char bf[SBUILD_ID_SIZE + 15] = " with build id ";
1609                 char *build_id_msg = NULL;
1610
1611                 if (dso->has_build_id) {
1612                         build_id__sprintf(&dso->bid, bf + 15);
1613                         build_id_msg = bf;
1614                 }
1615                 scnprintf(buf, buflen,
1616                           "No vmlinux file%s\nwas found in the path.\n\n"
1617                           "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n"
1618                           "Please use:\n\n"
1619                           "  perf buildid-cache -vu vmlinux\n\n"
1620                           "or:\n\n"
1621                           "  --vmlinux vmlinux\n", build_id_msg ?: "");
1622         }
1623                 break;
1624         case SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF:
1625                 scnprintf(buf, buflen, "Please link with binutils's libopcode to enable BPF annotation");
1626                 break;
1627         case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP:
1628                 scnprintf(buf, buflen, "Problems with arch specific instruction name regular expressions.");
1629                 break;
1630         case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING:
1631                 scnprintf(buf, buflen, "Problems while parsing the CPUID in the arch specific initialization.");
1632                 break;
1633         case SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE:
1634                 scnprintf(buf, buflen, "Invalid BPF file: %s.", dso->long_name);
1635                 break;
1636         case SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF:
1637                 scnprintf(buf, buflen, "The %s BPF file has no BTF section, compile with -g or use pahole -J.",
1638                           dso->long_name);
1639                 break;
1640         default:
1641                 scnprintf(buf, buflen, "Internal error: Invalid %d error code\n", errnum);
1642                 break;
1643         }
1644
1645         return 0;
1646 }
1647
1648 static int dso__disassemble_filename(struct dso *dso, char *filename, size_t filename_size)
1649 {
1650         char linkname[PATH_MAX];
1651         char *build_id_filename;
1652         char *build_id_path = NULL;
1653         char *pos;
1654         int len;
1655
1656         if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
1657             !dso__is_kcore(dso))
1658                 return SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX;
1659
1660         build_id_filename = dso__build_id_filename(dso, NULL, 0, false);
1661         if (build_id_filename) {
1662                 __symbol__join_symfs(filename, filename_size, build_id_filename);
1663                 free(build_id_filename);
1664         } else {
1665                 if (dso->has_build_id)
1666                         return ENOMEM;
1667                 goto fallback;
1668         }
1669
1670         build_id_path = strdup(filename);
1671         if (!build_id_path)
1672                 return ENOMEM;
1673
1674         /*
1675          * old style build-id cache has name of XX/XXXXXXX.. while
1676          * new style has XX/XXXXXXX../{elf,kallsyms,vdso}.
1677          * extract the build-id part of dirname in the new style only.
1678          */
1679         pos = strrchr(build_id_path, '/');
1680         if (pos && strlen(pos) < SBUILD_ID_SIZE - 2)
1681                 dirname(build_id_path);
1682
1683         if (dso__is_kcore(dso))
1684                 goto fallback;
1685
1686         len = readlink(build_id_path, linkname, sizeof(linkname) - 1);
1687         if (len < 0)
1688                 goto fallback;
1689
1690         linkname[len] = '\0';
1691         if (strstr(linkname, DSO__NAME_KALLSYMS) ||
1692                 access(filename, R_OK)) {
1693 fallback:
1694                 /*
1695                  * If we don't have build-ids or the build-id file isn't in the
1696                  * cache, or is just a kallsyms file, well, lets hope that this
1697                  * DSO is the same as when 'perf record' ran.
1698                  */
1699                 __symbol__join_symfs(filename, filename_size, dso->long_name);
1700
1701                 if (access(filename, R_OK) && errno == ENOENT && dso->nsinfo) {
1702                         char *new_name = filename_with_chroot(dso->nsinfo->pid,
1703                                                               filename);
1704                         if (new_name) {
1705                                 strlcpy(filename, new_name, filename_size);
1706                                 free(new_name);
1707                         }
1708                 }
1709         }
1710
1711         free(build_id_path);
1712         return 0;
1713 }
1714
1715 #if defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
1716 #define PACKAGE "perf"
1717 #include <bfd.h>
1718 #include <dis-asm.h>
1719 #include <bpf/bpf.h>
1720 #include <bpf/btf.h>
1721 #include <bpf/libbpf.h>
1722 #include <linux/btf.h>
1723
1724 static int symbol__disassemble_bpf(struct symbol *sym,
1725                                    struct annotate_args *args)
1726 {
1727         struct annotation *notes = symbol__annotation(sym);
1728         struct annotation_options *opts = args->options;
1729         struct bpf_prog_linfo *prog_linfo = NULL;
1730         struct bpf_prog_info_node *info_node;
1731         int len = sym->end - sym->start;
1732         disassembler_ftype disassemble;
1733         struct map *map = args->ms.map;
1734         struct perf_bpil *info_linear;
1735         struct disassemble_info info;
1736         struct dso *dso = map->dso;
1737         int pc = 0, count, sub_id;
1738         struct btf *btf = NULL;
1739         char tpath[PATH_MAX];
1740         size_t buf_size;
1741         int nr_skip = 0;
1742         char *buf;
1743         bfd *bfdf;
1744         int ret;
1745         FILE *s;
1746
1747         if (dso->binary_type != DSO_BINARY_TYPE__BPF_PROG_INFO)
1748                 return SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE;
1749
1750         pr_debug("%s: handling sym %s addr %" PRIx64 " len %" PRIx64 "\n", __func__,
1751                   sym->name, sym->start, sym->end - sym->start);
1752
1753         memset(tpath, 0, sizeof(tpath));
1754         perf_exe(tpath, sizeof(tpath));
1755
1756         bfdf = bfd_openr(tpath, NULL);
1757         assert(bfdf);
1758         assert(bfd_check_format(bfdf, bfd_object));
1759
1760         s = open_memstream(&buf, &buf_size);
1761         if (!s) {
1762                 ret = errno;
1763                 goto out;
1764         }
1765         init_disassemble_info(&info, s,
1766                               (fprintf_ftype) fprintf);
1767
1768         info.arch = bfd_get_arch(bfdf);
1769         info.mach = bfd_get_mach(bfdf);
1770
1771         info_node = perf_env__find_bpf_prog_info(dso->bpf_prog.env,
1772                                                  dso->bpf_prog.id);
1773         if (!info_node) {
1774                 ret = SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF;
1775                 goto out;
1776         }
1777         info_linear = info_node->info_linear;
1778         sub_id = dso->bpf_prog.sub_id;
1779
1780         info.buffer = (void *)(uintptr_t)(info_linear->info.jited_prog_insns);
1781         info.buffer_length = info_linear->info.jited_prog_len;
1782
1783         if (info_linear->info.nr_line_info)
1784                 prog_linfo = bpf_prog_linfo__new(&info_linear->info);
1785
1786         if (info_linear->info.btf_id) {
1787                 struct btf_node *node;
1788
1789                 node = perf_env__find_btf(dso->bpf_prog.env,
1790                                           info_linear->info.btf_id);
1791                 if (node)
1792                         btf = btf__new((__u8 *)(node->data),
1793                                        node->data_size);
1794         }
1795
1796         disassemble_init_for_target(&info);
1797
1798 #ifdef DISASM_FOUR_ARGS_SIGNATURE
1799         disassemble = disassembler(info.arch,
1800                                    bfd_big_endian(bfdf),
1801                                    info.mach,
1802                                    bfdf);
1803 #else
1804         disassemble = disassembler(bfdf);
1805 #endif
1806         assert(disassemble);
1807
1808         fflush(s);
1809         do {
1810                 const struct bpf_line_info *linfo = NULL;
1811                 struct disasm_line *dl;
1812                 size_t prev_buf_size;
1813                 const char *srcline;
1814                 u64 addr;
1815
1816                 addr = pc + ((u64 *)(uintptr_t)(info_linear->info.jited_ksyms))[sub_id];
1817                 count = disassemble(pc, &info);
1818
1819                 if (prog_linfo)
1820                         linfo = bpf_prog_linfo__lfind_addr_func(prog_linfo,
1821                                                                 addr, sub_id,
1822                                                                 nr_skip);
1823
1824                 if (linfo && btf) {
1825                         srcline = btf__name_by_offset(btf, linfo->line_off);
1826                         nr_skip++;
1827                 } else
1828                         srcline = NULL;
1829
1830                 fprintf(s, "\n");
1831                 prev_buf_size = buf_size;
1832                 fflush(s);
1833
1834                 if (!opts->hide_src_code && srcline) {
1835                         args->offset = -1;
1836                         args->line = strdup(srcline);
1837                         args->line_nr = 0;
1838                         args->fileloc = NULL;
1839                         args->ms.sym  = sym;
1840                         dl = disasm_line__new(args);
1841                         if (dl) {
1842                                 annotation_line__add(&dl->al,
1843                                                      &notes->src->source);
1844                         }
1845                 }
1846
1847                 args->offset = pc;
1848                 args->line = buf + prev_buf_size;
1849                 args->line_nr = 0;
1850                 args->fileloc = NULL;
1851                 args->ms.sym  = sym;
1852                 dl = disasm_line__new(args);
1853                 if (dl)
1854                         annotation_line__add(&dl->al, &notes->src->source);
1855
1856                 pc += count;
1857         } while (count > 0 && pc < len);
1858
1859         ret = 0;
1860 out:
1861         free(prog_linfo);
1862         btf__free(btf);
1863         fclose(s);
1864         bfd_close(bfdf);
1865         return ret;
1866 }
1867 #else // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
1868 static int symbol__disassemble_bpf(struct symbol *sym __maybe_unused,
1869                                    struct annotate_args *args __maybe_unused)
1870 {
1871         return SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF;
1872 }
1873 #endif // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
1874
1875 static int
1876 symbol__disassemble_bpf_image(struct symbol *sym,
1877                               struct annotate_args *args)
1878 {
1879         struct annotation *notes = symbol__annotation(sym);
1880         struct disasm_line *dl;
1881
1882         args->offset = -1;
1883         args->line = strdup("to be implemented");
1884         args->line_nr = 0;
1885         args->fileloc = NULL;
1886         dl = disasm_line__new(args);
1887         if (dl)
1888                 annotation_line__add(&dl->al, &notes->src->source);
1889
1890         free(args->line);
1891         return 0;
1892 }
1893
1894 /*
1895  * Possibly create a new version of line with tabs expanded. Returns the
1896  * existing or new line, storage is updated if a new line is allocated. If
1897  * allocation fails then NULL is returned.
1898  */
1899 static char *expand_tabs(char *line, char **storage, size_t *storage_len)
1900 {
1901         size_t i, src, dst, len, new_storage_len, num_tabs;
1902         char *new_line;
1903         size_t line_len = strlen(line);
1904
1905         for (num_tabs = 0, i = 0; i < line_len; i++)
1906                 if (line[i] == '\t')
1907                         num_tabs++;
1908
1909         if (num_tabs == 0)
1910                 return line;
1911
1912         /*
1913          * Space for the line and '\0', less the leading and trailing
1914          * spaces. Each tab may introduce 7 additional spaces.
1915          */
1916         new_storage_len = line_len + 1 + (num_tabs * 7);
1917
1918         new_line = malloc(new_storage_len);
1919         if (new_line == NULL) {
1920                 pr_err("Failure allocating memory for tab expansion\n");
1921                 return NULL;
1922         }
1923
1924         /*
1925          * Copy regions starting at src and expand tabs. If there are two
1926          * adjacent tabs then 'src == i', the memcpy is of size 0 and the spaces
1927          * are inserted.
1928          */
1929         for (i = 0, src = 0, dst = 0; i < line_len && num_tabs; i++) {
1930                 if (line[i] == '\t') {
1931                         len = i - src;
1932                         memcpy(&new_line[dst], &line[src], len);
1933                         dst += len;
1934                         new_line[dst++] = ' ';
1935                         while (dst % 8 != 0)
1936                                 new_line[dst++] = ' ';
1937                         src = i + 1;
1938                         num_tabs--;
1939                 }
1940         }
1941
1942         /* Expand the last region. */
1943         len = line_len - src;
1944         memcpy(&new_line[dst], &line[src], len);
1945         dst += len;
1946         new_line[dst] = '\0';
1947
1948         free(*storage);
1949         *storage = new_line;
1950         *storage_len = new_storage_len;
1951         return new_line;
1952
1953 }
1954
1955 static int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
1956 {
1957         struct annotation_options *opts = args->options;
1958         struct map *map = args->ms.map;
1959         struct dso *dso = map->dso;
1960         char *command;
1961         FILE *file;
1962         char symfs_filename[PATH_MAX];
1963         struct kcore_extract kce;
1964         bool delete_extract = false;
1965         bool decomp = false;
1966         int lineno = 0;
1967         char *fileloc = NULL;
1968         int nline;
1969         char *line;
1970         size_t line_len;
1971         const char *objdump_argv[] = {
1972                 "/bin/sh",
1973                 "-c",
1974                 NULL, /* Will be the objdump command to run. */
1975                 "--",
1976                 NULL, /* Will be the symfs path. */
1977                 NULL,
1978         };
1979         struct child_process objdump_process;
1980         int err = dso__disassemble_filename(dso, symfs_filename, sizeof(symfs_filename));
1981
1982         if (err)
1983                 return err;
1984
1985         pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
1986                  symfs_filename, sym->name, map->unmap_ip(map, sym->start),
1987                  map->unmap_ip(map, sym->end));
1988
1989         pr_debug("annotating [%p] %30s : [%p] %30s\n",
1990                  dso, dso->long_name, sym, sym->name);
1991
1992         if (dso->binary_type == DSO_BINARY_TYPE__BPF_PROG_INFO) {
1993                 return symbol__disassemble_bpf(sym, args);
1994         } else if (dso->binary_type == DSO_BINARY_TYPE__BPF_IMAGE) {
1995                 return symbol__disassemble_bpf_image(sym, args);
1996         } else if (dso__is_kcore(dso)) {
1997                 kce.kcore_filename = symfs_filename;
1998                 kce.addr = map__rip_2objdump(map, sym->start);
1999                 kce.offs = sym->start;
2000                 kce.len = sym->end - sym->start;
2001                 if (!kcore_extract__create(&kce)) {
2002                         delete_extract = true;
2003                         strlcpy(symfs_filename, kce.extract_filename,
2004                                 sizeof(symfs_filename));
2005                 }
2006         } else if (dso__needs_decompress(dso)) {
2007                 char tmp[KMOD_DECOMP_LEN];
2008
2009                 if (dso__decompress_kmodule_path(dso, symfs_filename,
2010                                                  tmp, sizeof(tmp)) < 0)
2011                         return -1;
2012
2013                 decomp = true;
2014                 strcpy(symfs_filename, tmp);
2015         }
2016
2017         err = asprintf(&command,
2018                  "%s %s%s --start-address=0x%016" PRIx64
2019                  " --stop-address=0x%016" PRIx64
2020                  " -l -d %s %s %s %c%s%c %s%s -C \"$1\"",
2021                  opts->objdump_path ?: "objdump",
2022                  opts->disassembler_style ? "-M " : "",
2023                  opts->disassembler_style ?: "",
2024                  map__rip_2objdump(map, sym->start),
2025                  map__rip_2objdump(map, sym->end),
2026                  opts->show_asm_raw ? "" : "--no-show-raw-insn",
2027                  opts->annotate_src ? "-S" : "",
2028                  opts->prefix ? "--prefix " : "",
2029                  opts->prefix ? '"' : ' ',
2030                  opts->prefix ?: "",
2031                  opts->prefix ? '"' : ' ',
2032                  opts->prefix_strip ? "--prefix-strip=" : "",
2033                  opts->prefix_strip ?: "");
2034
2035         if (err < 0) {
2036                 pr_err("Failure allocating memory for the command to run\n");
2037                 goto out_remove_tmp;
2038         }
2039
2040         pr_debug("Executing: %s\n", command);
2041
2042         objdump_argv[2] = command;
2043         objdump_argv[4] = symfs_filename;
2044
2045         /* Create a pipe to read from for stdout */
2046         memset(&objdump_process, 0, sizeof(objdump_process));
2047         objdump_process.argv = objdump_argv;
2048         objdump_process.out = -1;
2049         objdump_process.err = -1;
2050         if (start_command(&objdump_process)) {
2051                 pr_err("Failure starting to run %s\n", command);
2052                 err = -1;
2053                 goto out_free_command;
2054         }
2055
2056         file = fdopen(objdump_process.out, "r");
2057         if (!file) {
2058                 pr_err("Failure creating FILE stream for %s\n", command);
2059                 /*
2060                  * If we were using debug info should retry with
2061                  * original binary.
2062                  */
2063                 err = -1;
2064                 goto out_close_stdout;
2065         }
2066
2067         /* Storage for getline. */
2068         line = NULL;
2069         line_len = 0;
2070
2071         nline = 0;
2072         while (!feof(file)) {
2073                 const char *match;
2074                 char *expanded_line;
2075
2076                 if (getline(&line, &line_len, file) < 0 || !line)
2077                         break;
2078
2079                 /* Skip lines containing "filename:" */
2080                 match = strstr(line, symfs_filename);
2081                 if (match && match[strlen(symfs_filename)] == ':')
2082                         continue;
2083
2084                 expanded_line = strim(line);
2085                 expanded_line = expand_tabs(expanded_line, &line, &line_len);
2086                 if (!expanded_line)
2087                         break;
2088
2089                 /*
2090                  * The source code line number (lineno) needs to be kept in
2091                  * across calls to symbol__parse_objdump_line(), so that it
2092                  * can associate it with the instructions till the next one.
2093                  * See disasm_line__new() and struct disasm_line::line_nr.
2094                  */
2095                 if (symbol__parse_objdump_line(sym, args, expanded_line,
2096                                                &lineno, &fileloc) < 0)
2097                         break;
2098                 nline++;
2099         }
2100         free(line);
2101
2102         err = finish_command(&objdump_process);
2103         if (err)
2104                 pr_err("Error running %s\n", command);
2105
2106         if (nline == 0) {
2107                 err = -1;
2108                 pr_err("No output from %s\n", command);
2109         }
2110
2111         /*
2112          * kallsyms does not have symbol sizes so there may a nop at the end.
2113          * Remove it.
2114          */
2115         if (dso__is_kcore(dso))
2116                 delete_last_nop(sym);
2117
2118         fclose(file);
2119
2120 out_close_stdout:
2121         close(objdump_process.out);
2122
2123 out_free_command:
2124         free(command);
2125
2126 out_remove_tmp:
2127         if (decomp)
2128                 unlink(symfs_filename);
2129
2130         if (delete_extract)
2131                 kcore_extract__delete(&kce);
2132
2133         return err;
2134 }
2135
2136 static void calc_percent(struct sym_hist *sym_hist,
2137                          struct hists *hists,
2138                          struct annotation_data *data,
2139                          s64 offset, s64 end)
2140 {
2141         unsigned int hits = 0;
2142         u64 period = 0;
2143
2144         while (offset < end) {
2145                 hits   += sym_hist->addr[offset].nr_samples;
2146                 period += sym_hist->addr[offset].period;
2147                 ++offset;
2148         }
2149
2150         if (sym_hist->nr_samples) {
2151                 data->he.period     = period;
2152                 data->he.nr_samples = hits;
2153                 data->percent[PERCENT_HITS_LOCAL] = 100.0 * hits / sym_hist->nr_samples;
2154         }
2155
2156         if (hists->stats.nr_non_filtered_samples)
2157                 data->percent[PERCENT_HITS_GLOBAL] = 100.0 * hits / hists->stats.nr_non_filtered_samples;
2158
2159         if (sym_hist->period)
2160                 data->percent[PERCENT_PERIOD_LOCAL] = 100.0 * period / sym_hist->period;
2161
2162         if (hists->stats.total_period)
2163                 data->percent[PERCENT_PERIOD_GLOBAL] = 100.0 * period / hists->stats.total_period;
2164 }
2165
2166 static void annotation__calc_percent(struct annotation *notes,
2167                                      struct evsel *leader, s64 len)
2168 {
2169         struct annotation_line *al, *next;
2170         struct evsel *evsel;
2171
2172         list_for_each_entry(al, &notes->src->source, node) {
2173                 s64 end;
2174                 int i = 0;
2175
2176                 if (al->offset == -1)
2177                         continue;
2178
2179                 next = annotation_line__next(al, &notes->src->source);
2180                 end  = next ? next->offset : len;
2181
2182                 for_each_group_evsel(evsel, leader) {
2183                         struct hists *hists = evsel__hists(evsel);
2184                         struct annotation_data *data;
2185                         struct sym_hist *sym_hist;
2186
2187                         BUG_ON(i >= al->data_nr);
2188
2189                         sym_hist = annotation__histogram(notes, evsel->core.idx);
2190                         data = &al->data[i++];
2191
2192                         calc_percent(sym_hist, hists, data, al->offset, end);
2193                 }
2194         }
2195 }
2196
2197 void symbol__calc_percent(struct symbol *sym, struct evsel *evsel)
2198 {
2199         struct annotation *notes = symbol__annotation(sym);
2200
2201         annotation__calc_percent(notes, evsel, symbol__size(sym));
2202 }
2203
2204 int symbol__annotate(struct map_symbol *ms, struct evsel *evsel,
2205                      struct annotation_options *options, struct arch **parch)
2206 {
2207         struct symbol *sym = ms->sym;
2208         struct annotation *notes = symbol__annotation(sym);
2209         struct annotate_args args = {
2210                 .evsel          = evsel,
2211                 .options        = options,
2212         };
2213         struct perf_env *env = evsel__env(evsel);
2214         const char *arch_name = perf_env__arch(env);
2215         struct arch *arch;
2216         int err;
2217
2218         if (!arch_name)
2219                 return errno;
2220
2221         args.arch = arch = arch__find(arch_name);
2222         if (arch == NULL) {
2223                 pr_err("%s: unsupported arch %s\n", __func__, arch_name);
2224                 return ENOTSUP;
2225         }
2226
2227         if (parch)
2228                 *parch = arch;
2229
2230         if (arch->init) {
2231                 err = arch->init(arch, env ? env->cpuid : NULL);
2232                 if (err) {
2233                         pr_err("%s: failed to initialize %s arch priv area\n", __func__, arch->name);
2234                         return err;
2235                 }
2236         }
2237
2238         args.ms = *ms;
2239         notes->start = map__rip_2objdump(ms->map, sym->start);
2240
2241         return symbol__disassemble(sym, &args);
2242 }
2243
2244 static void insert_source_line(struct rb_root *root, struct annotation_line *al,
2245                                struct annotation_options *opts)
2246 {
2247         struct annotation_line *iter;
2248         struct rb_node **p = &root->rb_node;
2249         struct rb_node *parent = NULL;
2250         int i, ret;
2251
2252         while (*p != NULL) {
2253                 parent = *p;
2254                 iter = rb_entry(parent, struct annotation_line, rb_node);
2255
2256                 ret = strcmp(iter->path, al->path);
2257                 if (ret == 0) {
2258                         for (i = 0; i < al->data_nr; i++) {
2259                                 iter->data[i].percent_sum += annotation_data__percent(&al->data[i],
2260                                                                                       opts->percent_type);
2261                         }
2262                         return;
2263                 }
2264
2265                 if (ret < 0)
2266                         p = &(*p)->rb_left;
2267                 else
2268                         p = &(*p)->rb_right;
2269         }
2270
2271         for (i = 0; i < al->data_nr; i++) {
2272                 al->data[i].percent_sum = annotation_data__percent(&al->data[i],
2273                                                                    opts->percent_type);
2274         }
2275
2276         rb_link_node(&al->rb_node, parent, p);
2277         rb_insert_color(&al->rb_node, root);
2278 }
2279
2280 static int cmp_source_line(struct annotation_line *a, struct annotation_line *b)
2281 {
2282         int i;
2283
2284         for (i = 0; i < a->data_nr; i++) {
2285                 if (a->data[i].percent_sum == b->data[i].percent_sum)
2286                         continue;
2287                 return a->data[i].percent_sum > b->data[i].percent_sum;
2288         }
2289
2290         return 0;
2291 }
2292
2293 static void __resort_source_line(struct rb_root *root, struct annotation_line *al)
2294 {
2295         struct annotation_line *iter;
2296         struct rb_node **p = &root->rb_node;
2297         struct rb_node *parent = NULL;
2298
2299         while (*p != NULL) {
2300                 parent = *p;
2301                 iter = rb_entry(parent, struct annotation_line, rb_node);
2302
2303                 if (cmp_source_line(al, iter))
2304                         p = &(*p)->rb_left;
2305                 else
2306                         p = &(*p)->rb_right;
2307         }
2308
2309         rb_link_node(&al->rb_node, parent, p);
2310         rb_insert_color(&al->rb_node, root);
2311 }
2312
2313 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
2314 {
2315         struct annotation_line *al;
2316         struct rb_node *node;
2317
2318         node = rb_first(src_root);
2319         while (node) {
2320                 struct rb_node *next;
2321
2322                 al = rb_entry(node, struct annotation_line, rb_node);
2323                 next = rb_next(node);
2324                 rb_erase(node, src_root);
2325
2326                 __resort_source_line(dest_root, al);
2327                 node = next;
2328         }
2329 }
2330
2331 static void print_summary(struct rb_root *root, const char *filename)
2332 {
2333         struct annotation_line *al;
2334         struct rb_node *node;
2335
2336         printf("\nSorted summary for file %s\n", filename);
2337         printf("----------------------------------------------\n\n");
2338
2339         if (RB_EMPTY_ROOT(root)) {
2340                 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
2341                 return;
2342         }
2343
2344         node = rb_first(root);
2345         while (node) {
2346                 double percent, percent_max = 0.0;
2347                 const char *color;
2348                 char *path;
2349                 int i;
2350
2351                 al = rb_entry(node, struct annotation_line, rb_node);
2352                 for (i = 0; i < al->data_nr; i++) {
2353                         percent = al->data[i].percent_sum;
2354                         color = get_percent_color(percent);
2355                         color_fprintf(stdout, color, " %7.2f", percent);
2356
2357                         if (percent > percent_max)
2358                                 percent_max = percent;
2359                 }
2360
2361                 path = al->path;
2362                 color = get_percent_color(percent_max);
2363                 color_fprintf(stdout, color, " %s\n", path);
2364
2365                 node = rb_next(node);
2366         }
2367 }
2368
2369 static void symbol__annotate_hits(struct symbol *sym, struct evsel *evsel)
2370 {
2371         struct annotation *notes = symbol__annotation(sym);
2372         struct sym_hist *h = annotation__histogram(notes, evsel->core.idx);
2373         u64 len = symbol__size(sym), offset;
2374
2375         for (offset = 0; offset < len; ++offset)
2376                 if (h->addr[offset].nr_samples != 0)
2377                         printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
2378                                sym->start + offset, h->addr[offset].nr_samples);
2379         printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->nr_samples", h->nr_samples);
2380 }
2381
2382 static int annotated_source__addr_fmt_width(struct list_head *lines, u64 start)
2383 {
2384         char bf[32];
2385         struct annotation_line *line;
2386
2387         list_for_each_entry_reverse(line, lines, node) {
2388                 if (line->offset != -1)
2389                         return scnprintf(bf, sizeof(bf), "%" PRIx64, start + line->offset);
2390         }
2391
2392         return 0;
2393 }
2394
2395 int symbol__annotate_printf(struct map_symbol *ms, struct evsel *evsel,
2396                             struct annotation_options *opts)
2397 {
2398         struct map *map = ms->map;
2399         struct symbol *sym = ms->sym;
2400         struct dso *dso = map->dso;
2401         char *filename;
2402         const char *d_filename;
2403         const char *evsel_name = evsel__name(evsel);
2404         struct annotation *notes = symbol__annotation(sym);
2405         struct sym_hist *h = annotation__histogram(notes, evsel->core.idx);
2406         struct annotation_line *pos, *queue = NULL;
2407         u64 start = map__rip_2objdump(map, sym->start);
2408         int printed = 2, queue_len = 0, addr_fmt_width;
2409         int more = 0;
2410         bool context = opts->context;
2411         u64 len;
2412         int width = symbol_conf.show_total_period ? 12 : 8;
2413         int graph_dotted_len;
2414         char buf[512];
2415
2416         filename = strdup(dso->long_name);
2417         if (!filename)
2418                 return -ENOMEM;
2419
2420         if (opts->full_path)
2421                 d_filename = filename;
2422         else
2423                 d_filename = basename(filename);
2424
2425         len = symbol__size(sym);
2426
2427         if (evsel__is_group_event(evsel)) {
2428                 width *= evsel->core.nr_members;
2429                 evsel__group_desc(evsel, buf, sizeof(buf));
2430                 evsel_name = buf;
2431         }
2432
2433         graph_dotted_len = printf(" %-*.*s|     Source code & Disassembly of %s for %s (%" PRIu64 " samples, "
2434                                   "percent: %s)\n",
2435                                   width, width, symbol_conf.show_total_period ? "Period" :
2436                                   symbol_conf.show_nr_samples ? "Samples" : "Percent",
2437                                   d_filename, evsel_name, h->nr_samples,
2438                                   percent_type_str(opts->percent_type));
2439
2440         printf("%-*.*s----\n",
2441                graph_dotted_len, graph_dotted_len, graph_dotted_line);
2442
2443         if (verbose > 0)
2444                 symbol__annotate_hits(sym, evsel);
2445
2446         addr_fmt_width = annotated_source__addr_fmt_width(&notes->src->source, start);
2447
2448         list_for_each_entry(pos, &notes->src->source, node) {
2449                 int err;
2450
2451                 if (context && queue == NULL) {
2452                         queue = pos;
2453                         queue_len = 0;
2454                 }
2455
2456                 err = annotation_line__print(pos, sym, start, evsel, len,
2457                                              opts->min_pcnt, printed, opts->max_lines,
2458                                              queue, addr_fmt_width, opts->percent_type);
2459
2460                 switch (err) {
2461                 case 0:
2462                         ++printed;
2463                         if (context) {
2464                                 printed += queue_len;
2465                                 queue = NULL;
2466                                 queue_len = 0;
2467                         }
2468                         break;
2469                 case 1:
2470                         /* filtered by max_lines */
2471                         ++more;
2472                         break;
2473                 case -1:
2474                 default:
2475                         /*
2476                          * Filtered by min_pcnt or non IP lines when
2477                          * context != 0
2478                          */
2479                         if (!context)
2480                                 break;
2481                         if (queue_len == context)
2482                                 queue = list_entry(queue->node.next, typeof(*queue), node);
2483                         else
2484                                 ++queue_len;
2485                         break;
2486                 }
2487         }
2488
2489         free(filename);
2490
2491         return more;
2492 }
2493
2494 static void FILE__set_percent_color(void *fp __maybe_unused,
2495                                     double percent __maybe_unused,
2496                                     bool current __maybe_unused)
2497 {
2498 }
2499
2500 static int FILE__set_jumps_percent_color(void *fp __maybe_unused,
2501                                          int nr __maybe_unused, bool current __maybe_unused)
2502 {
2503         return 0;
2504 }
2505
2506 static int FILE__set_color(void *fp __maybe_unused, int color __maybe_unused)
2507 {
2508         return 0;
2509 }
2510
2511 static void FILE__printf(void *fp, const char *fmt, ...)
2512 {
2513         va_list args;
2514
2515         va_start(args, fmt);
2516         vfprintf(fp, fmt, args);
2517         va_end(args);
2518 }
2519
2520 static void FILE__write_graph(void *fp, int graph)
2521 {
2522         const char *s;
2523         switch (graph) {
2524
2525         case DARROW_CHAR: s = "↓"; break;
2526         case UARROW_CHAR: s = "↑"; break;
2527         case LARROW_CHAR: s = "←"; break;
2528         case RARROW_CHAR: s = "→"; break;
2529         default:                s = "?"; break;
2530         }
2531
2532         fputs(s, fp);
2533 }
2534
2535 static int symbol__annotate_fprintf2(struct symbol *sym, FILE *fp,
2536                                      struct annotation_options *opts)
2537 {
2538         struct annotation *notes = symbol__annotation(sym);
2539         struct annotation_write_ops wops = {
2540                 .first_line              = true,
2541                 .obj                     = fp,
2542                 .set_color               = FILE__set_color,
2543                 .set_percent_color       = FILE__set_percent_color,
2544                 .set_jumps_percent_color = FILE__set_jumps_percent_color,
2545                 .printf                  = FILE__printf,
2546                 .write_graph             = FILE__write_graph,
2547         };
2548         struct annotation_line *al;
2549
2550         list_for_each_entry(al, &notes->src->source, node) {
2551                 if (annotation_line__filter(al, notes))
2552                         continue;
2553                 annotation_line__write(al, notes, &wops, opts);
2554                 fputc('\n', fp);
2555                 wops.first_line = false;
2556         }
2557
2558         return 0;
2559 }
2560
2561 int map_symbol__annotation_dump(struct map_symbol *ms, struct evsel *evsel,
2562                                 struct annotation_options *opts)
2563 {
2564         const char *ev_name = evsel__name(evsel);
2565         char buf[1024];
2566         char *filename;
2567         int err = -1;
2568         FILE *fp;
2569
2570         if (asprintf(&filename, "%s.annotation", ms->sym->name) < 0)
2571                 return -1;
2572
2573         fp = fopen(filename, "w");
2574         if (fp == NULL)
2575                 goto out_free_filename;
2576
2577         if (evsel__is_group_event(evsel)) {
2578                 evsel__group_desc(evsel, buf, sizeof(buf));
2579                 ev_name = buf;
2580         }
2581
2582         fprintf(fp, "%s() %s\nEvent: %s\n\n",
2583                 ms->sym->name, ms->map->dso->long_name, ev_name);
2584         symbol__annotate_fprintf2(ms->sym, fp, opts);
2585
2586         fclose(fp);
2587         err = 0;
2588 out_free_filename:
2589         free(filename);
2590         return err;
2591 }
2592
2593 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
2594 {
2595         struct annotation *notes = symbol__annotation(sym);
2596         struct sym_hist *h = annotation__histogram(notes, evidx);
2597
2598         memset(h, 0, notes->src->sizeof_sym_hist);
2599 }
2600
2601 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
2602 {
2603         struct annotation *notes = symbol__annotation(sym);
2604         struct sym_hist *h = annotation__histogram(notes, evidx);
2605         int len = symbol__size(sym), offset;
2606
2607         h->nr_samples = 0;
2608         for (offset = 0; offset < len; ++offset) {
2609                 h->addr[offset].nr_samples = h->addr[offset].nr_samples * 7 / 8;
2610                 h->nr_samples += h->addr[offset].nr_samples;
2611         }
2612 }
2613
2614 void annotated_source__purge(struct annotated_source *as)
2615 {
2616         struct annotation_line *al, *n;
2617
2618         list_for_each_entry_safe(al, n, &as->source, node) {
2619                 list_del_init(&al->node);
2620                 disasm_line__free(disasm_line(al));
2621         }
2622 }
2623
2624 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
2625 {
2626         size_t printed;
2627
2628         if (dl->al.offset == -1)
2629                 return fprintf(fp, "%s\n", dl->al.line);
2630
2631         printed = fprintf(fp, "%#" PRIx64 " %s", dl->al.offset, dl->ins.name);
2632
2633         if (dl->ops.raw[0] != '\0') {
2634                 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
2635                                    dl->ops.raw);
2636         }
2637
2638         return printed + fprintf(fp, "\n");
2639 }
2640
2641 size_t disasm__fprintf(struct list_head *head, FILE *fp)
2642 {
2643         struct disasm_line *pos;
2644         size_t printed = 0;
2645
2646         list_for_each_entry(pos, head, al.node)
2647                 printed += disasm_line__fprintf(pos, fp);
2648
2649         return printed;
2650 }
2651
2652 bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym)
2653 {
2654         if (!dl || !dl->ins.ops || !ins__is_jump(&dl->ins) ||
2655             !disasm_line__has_local_offset(dl) || dl->ops.target.offset < 0 ||
2656             dl->ops.target.offset >= (s64)symbol__size(sym))
2657                 return false;
2658
2659         return true;
2660 }
2661
2662 void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym)
2663 {
2664         u64 offset, size = symbol__size(sym);
2665
2666         /* PLT symbols contain external offsets */
2667         if (strstr(sym->name, "@plt"))
2668                 return;
2669
2670         for (offset = 0; offset < size; ++offset) {
2671                 struct annotation_line *al = notes->offsets[offset];
2672                 struct disasm_line *dl;
2673
2674                 dl = disasm_line(al);
2675
2676                 if (!disasm_line__is_valid_local_jump(dl, sym))
2677                         continue;
2678
2679                 al = notes->offsets[dl->ops.target.offset];
2680
2681                 /*
2682                  * FIXME: Oops, no jump target? Buggy disassembler? Or do we
2683                  * have to adjust to the previous offset?
2684                  */
2685                 if (al == NULL)
2686                         continue;
2687
2688                 if (++al->jump_sources > notes->max_jump_sources)
2689                         notes->max_jump_sources = al->jump_sources;
2690         }
2691 }
2692
2693 void annotation__set_offsets(struct annotation *notes, s64 size)
2694 {
2695         struct annotation_line *al;
2696
2697         notes->max_line_len = 0;
2698         notes->nr_entries = 0;
2699         notes->nr_asm_entries = 0;
2700
2701         list_for_each_entry(al, &notes->src->source, node) {
2702                 size_t line_len = strlen(al->line);
2703
2704                 if (notes->max_line_len < line_len)
2705                         notes->max_line_len = line_len;
2706                 al->idx = notes->nr_entries++;
2707                 if (al->offset != -1) {
2708                         al->idx_asm = notes->nr_asm_entries++;
2709                         /*
2710                          * FIXME: short term bandaid to cope with assembly
2711                          * routines that comes with labels in the same column
2712                          * as the address in objdump, sigh.
2713                          *
2714                          * E.g. copy_user_generic_unrolled
2715                          */
2716                         if (al->offset < size)
2717                                 notes->offsets[al->offset] = al;
2718                 } else
2719                         al->idx_asm = -1;
2720         }
2721 }
2722
2723 static inline int width_jumps(int n)
2724 {
2725         if (n >= 100)
2726                 return 5;
2727         if (n / 10)
2728                 return 2;
2729         return 1;
2730 }
2731
2732 static int annotation__max_ins_name(struct annotation *notes)
2733 {
2734         int max_name = 0, len;
2735         struct annotation_line *al;
2736
2737         list_for_each_entry(al, &notes->src->source, node) {
2738                 if (al->offset == -1)
2739                         continue;
2740
2741                 len = strlen(disasm_line(al)->ins.name);
2742                 if (max_name < len)
2743                         max_name = len;
2744         }
2745
2746         return max_name;
2747 }
2748
2749 void annotation__init_column_widths(struct annotation *notes, struct symbol *sym)
2750 {
2751         notes->widths.addr = notes->widths.target =
2752                 notes->widths.min_addr = hex_width(symbol__size(sym));
2753         notes->widths.max_addr = hex_width(sym->end);
2754         notes->widths.jumps = width_jumps(notes->max_jump_sources);
2755         notes->widths.max_ins_name = annotation__max_ins_name(notes);
2756 }
2757
2758 void annotation__update_column_widths(struct annotation *notes)
2759 {
2760         if (notes->options->use_offset)
2761                 notes->widths.target = notes->widths.min_addr;
2762         else
2763                 notes->widths.target = notes->widths.max_addr;
2764
2765         notes->widths.addr = notes->widths.target;
2766
2767         if (notes->options->show_nr_jumps)
2768                 notes->widths.addr += notes->widths.jumps + 1;
2769 }
2770
2771 static void annotation__calc_lines(struct annotation *notes, struct map *map,
2772                                    struct rb_root *root,
2773                                    struct annotation_options *opts)
2774 {
2775         struct annotation_line *al;
2776         struct rb_root tmp_root = RB_ROOT;
2777
2778         list_for_each_entry(al, &notes->src->source, node) {
2779                 double percent_max = 0.0;
2780                 int i;
2781
2782                 for (i = 0; i < al->data_nr; i++) {
2783                         double percent;
2784
2785                         percent = annotation_data__percent(&al->data[i],
2786                                                            opts->percent_type);
2787
2788                         if (percent > percent_max)
2789                                 percent_max = percent;
2790                 }
2791
2792                 if (percent_max <= 0.5)
2793                         continue;
2794
2795                 al->path = get_srcline(map->dso, notes->start + al->offset, NULL,
2796                                        false, true, notes->start + al->offset);
2797                 insert_source_line(&tmp_root, al, opts);
2798         }
2799
2800         resort_source_line(root, &tmp_root);
2801 }
2802
2803 static void symbol__calc_lines(struct map_symbol *ms, struct rb_root *root,
2804                                struct annotation_options *opts)
2805 {
2806         struct annotation *notes = symbol__annotation(ms->sym);
2807
2808         annotation__calc_lines(notes, ms->map, root, opts);
2809 }
2810
2811 int symbol__tty_annotate2(struct map_symbol *ms, struct evsel *evsel,
2812                           struct annotation_options *opts)
2813 {
2814         struct dso *dso = ms->map->dso;
2815         struct symbol *sym = ms->sym;
2816         struct rb_root source_line = RB_ROOT;
2817         struct hists *hists = evsel__hists(evsel);
2818         char buf[1024];
2819         int err;
2820
2821         err = symbol__annotate2(ms, evsel, opts, NULL);
2822         if (err) {
2823                 char msg[BUFSIZ];
2824
2825                 dso->annotate_warned = true;
2826                 symbol__strerror_disassemble(ms, err, msg, sizeof(msg));
2827                 ui__error("Couldn't annotate %s:\n%s", sym->name, msg);
2828                 return -1;
2829         }
2830
2831         if (opts->print_lines) {
2832                 srcline_full_filename = opts->full_path;
2833                 symbol__calc_lines(ms, &source_line, opts);
2834                 print_summary(&source_line, dso->long_name);
2835         }
2836
2837         hists__scnprintf_title(hists, buf, sizeof(buf));
2838         fprintf(stdout, "%s, [percent: %s]\n%s() %s\n",
2839                 buf, percent_type_str(opts->percent_type), sym->name, dso->long_name);
2840         symbol__annotate_fprintf2(sym, stdout, opts);
2841
2842         annotated_source__purge(symbol__annotation(sym)->src);
2843
2844         return 0;
2845 }
2846
2847 int symbol__tty_annotate(struct map_symbol *ms, struct evsel *evsel,
2848                          struct annotation_options *opts)
2849 {
2850         struct dso *dso = ms->map->dso;
2851         struct symbol *sym = ms->sym;
2852         struct rb_root source_line = RB_ROOT;
2853         int err;
2854
2855         err = symbol__annotate(ms, evsel, opts, NULL);
2856         if (err) {
2857                 char msg[BUFSIZ];
2858
2859                 dso->annotate_warned = true;
2860                 symbol__strerror_disassemble(ms, err, msg, sizeof(msg));
2861                 ui__error("Couldn't annotate %s:\n%s", sym->name, msg);
2862                 return -1;
2863         }
2864
2865         symbol__calc_percent(sym, evsel);
2866
2867         if (opts->print_lines) {
2868                 srcline_full_filename = opts->full_path;
2869                 symbol__calc_lines(ms, &source_line, opts);
2870                 print_summary(&source_line, dso->long_name);
2871         }
2872
2873         symbol__annotate_printf(ms, evsel, opts);
2874
2875         annotated_source__purge(symbol__annotation(sym)->src);
2876
2877         return 0;
2878 }
2879
2880 bool ui__has_annotation(void)
2881 {
2882         return use_browser == 1 && perf_hpp_list.sym;
2883 }
2884
2885
2886 static double annotation_line__max_percent(struct annotation_line *al,
2887                                            struct annotation *notes,
2888                                            unsigned int percent_type)
2889 {
2890         double percent_max = 0.0;
2891         int i;
2892
2893         for (i = 0; i < notes->nr_events; i++) {
2894                 double percent;
2895
2896                 percent = annotation_data__percent(&al->data[i],
2897                                                    percent_type);
2898
2899                 if (percent > percent_max)
2900                         percent_max = percent;
2901         }
2902
2903         return percent_max;
2904 }
2905
2906 static void disasm_line__write(struct disasm_line *dl, struct annotation *notes,
2907                                void *obj, char *bf, size_t size,
2908                                void (*obj__printf)(void *obj, const char *fmt, ...),
2909                                void (*obj__write_graph)(void *obj, int graph))
2910 {
2911         if (dl->ins.ops && dl->ins.ops->scnprintf) {
2912                 if (ins__is_jump(&dl->ins)) {
2913                         bool fwd;
2914
2915                         if (dl->ops.target.outside)
2916                                 goto call_like;
2917                         fwd = dl->ops.target.offset > dl->al.offset;
2918                         obj__write_graph(obj, fwd ? DARROW_CHAR : UARROW_CHAR);
2919                         obj__printf(obj, " ");
2920                 } else if (ins__is_call(&dl->ins)) {
2921 call_like:
2922                         obj__write_graph(obj, RARROW_CHAR);
2923                         obj__printf(obj, " ");
2924                 } else if (ins__is_ret(&dl->ins)) {
2925                         obj__write_graph(obj, LARROW_CHAR);
2926                         obj__printf(obj, " ");
2927                 } else {
2928                         obj__printf(obj, "  ");
2929                 }
2930         } else {
2931                 obj__printf(obj, "  ");
2932         }
2933
2934         disasm_line__scnprintf(dl, bf, size, !notes->options->use_offset, notes->widths.max_ins_name);
2935 }
2936
2937 static void ipc_coverage_string(char *bf, int size, struct annotation *notes)
2938 {
2939         double ipc = 0.0, coverage = 0.0;
2940
2941         if (notes->hit_cycles)
2942                 ipc = notes->hit_insn / ((double)notes->hit_cycles);
2943
2944         if (notes->total_insn) {
2945                 coverage = notes->cover_insn * 100.0 /
2946                         ((double)notes->total_insn);
2947         }
2948
2949         scnprintf(bf, size, "(Average IPC: %.2f, IPC Coverage: %.1f%%)",
2950                   ipc, coverage);
2951 }
2952
2953 static void __annotation_line__write(struct annotation_line *al, struct annotation *notes,
2954                                      bool first_line, bool current_entry, bool change_color, int width,
2955                                      void *obj, unsigned int percent_type,
2956                                      int  (*obj__set_color)(void *obj, int color),
2957                                      void (*obj__set_percent_color)(void *obj, double percent, bool current),
2958                                      int  (*obj__set_jumps_percent_color)(void *obj, int nr, bool current),
2959                                      void (*obj__printf)(void *obj, const char *fmt, ...),
2960                                      void (*obj__write_graph)(void *obj, int graph))
2961
2962 {
2963         double percent_max = annotation_line__max_percent(al, notes, percent_type);
2964         int pcnt_width = annotation__pcnt_width(notes),
2965             cycles_width = annotation__cycles_width(notes);
2966         bool show_title = false;
2967         char bf[256];
2968         int printed;
2969
2970         if (first_line && (al->offset == -1 || percent_max == 0.0)) {
2971                 if (notes->have_cycles) {
2972                         if (al->ipc == 0.0 && al->cycles == 0)
2973                                 show_title = true;
2974                 } else
2975                         show_title = true;
2976         }
2977
2978         if (al->offset != -1 && percent_max != 0.0) {
2979                 int i;
2980
2981                 for (i = 0; i < notes->nr_events; i++) {
2982                         double percent;
2983
2984                         percent = annotation_data__percent(&al->data[i], percent_type);
2985
2986                         obj__set_percent_color(obj, percent, current_entry);
2987                         if (symbol_conf.show_total_period) {
2988                                 obj__printf(obj, "%11" PRIu64 " ", al->data[i].he.period);
2989                         } else if (symbol_conf.show_nr_samples) {
2990                                 obj__printf(obj, "%6" PRIu64 " ",
2991                                                    al->data[i].he.nr_samples);
2992                         } else {
2993                                 obj__printf(obj, "%6.2f ", percent);
2994                         }
2995                 }
2996         } else {
2997                 obj__set_percent_color(obj, 0, current_entry);
2998
2999                 if (!show_title)
3000                         obj__printf(obj, "%-*s", pcnt_width, " ");
3001                 else {
3002                         obj__printf(obj, "%-*s", pcnt_width,
3003                                            symbol_conf.show_total_period ? "Period" :
3004                                            symbol_conf.show_nr_samples ? "Samples" : "Percent");
3005                 }
3006         }
3007
3008         if (notes->have_cycles) {
3009                 if (al->ipc)
3010                         obj__printf(obj, "%*.2f ", ANNOTATION__IPC_WIDTH - 1, al->ipc);
3011                 else if (!show_title)
3012                         obj__printf(obj, "%*s", ANNOTATION__IPC_WIDTH, " ");
3013                 else
3014                         obj__printf(obj, "%*s ", ANNOTATION__IPC_WIDTH - 1, "IPC");
3015
3016                 if (!notes->options->show_minmax_cycle) {
3017                         if (al->cycles)
3018                                 obj__printf(obj, "%*" PRIu64 " ",
3019                                            ANNOTATION__CYCLES_WIDTH - 1, al->cycles);
3020                         else if (!show_title)
3021                                 obj__printf(obj, "%*s",
3022                                             ANNOTATION__CYCLES_WIDTH, " ");
3023                         else
3024                                 obj__printf(obj, "%*s ",
3025                                             ANNOTATION__CYCLES_WIDTH - 1,
3026                                             "Cycle");
3027                 } else {
3028                         if (al->cycles) {
3029                                 char str[32];
3030
3031                                 scnprintf(str, sizeof(str),
3032                                         "%" PRIu64 "(%" PRIu64 "/%" PRIu64 ")",
3033                                         al->cycles, al->cycles_min,
3034                                         al->cycles_max);
3035
3036                                 obj__printf(obj, "%*s ",
3037                                             ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
3038                                             str);
3039                         } else if (!show_title)
3040                                 obj__printf(obj, "%*s",
3041                                             ANNOTATION__MINMAX_CYCLES_WIDTH,
3042                                             " ");
3043                         else
3044                                 obj__printf(obj, "%*s ",
3045                                             ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
3046                                             "Cycle(min/max)");
3047                 }
3048
3049                 if (show_title && !*al->line) {
3050                         ipc_coverage_string(bf, sizeof(bf), notes);
3051                         obj__printf(obj, "%*s", ANNOTATION__AVG_IPC_WIDTH, bf);
3052                 }
3053         }
3054
3055         obj__printf(obj, " ");
3056
3057         if (!*al->line)
3058                 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width, " ");
3059         else if (al->offset == -1) {
3060                 if (al->line_nr && notes->options->show_linenr)
3061                         printed = scnprintf(bf, sizeof(bf), "%-*d ", notes->widths.addr + 1, al->line_nr);
3062                 else
3063                         printed = scnprintf(bf, sizeof(bf), "%-*s  ", notes->widths.addr, " ");
3064                 obj__printf(obj, bf);
3065                 obj__printf(obj, "%-*s", width - printed - pcnt_width - cycles_width + 1, al->line);
3066         } else {
3067                 u64 addr = al->offset;
3068                 int color = -1;
3069
3070                 if (!notes->options->use_offset)
3071                         addr += notes->start;
3072
3073                 if (!notes->options->use_offset) {
3074                         printed = scnprintf(bf, sizeof(bf), "%" PRIx64 ": ", addr);
3075                 } else {
3076                         if (al->jump_sources &&
3077                             notes->options->offset_level >= ANNOTATION__OFFSET_JUMP_TARGETS) {
3078                                 if (notes->options->show_nr_jumps) {
3079                                         int prev;
3080                                         printed = scnprintf(bf, sizeof(bf), "%*d ",
3081                                                             notes->widths.jumps,
3082                                                             al->jump_sources);
3083                                         prev = obj__set_jumps_percent_color(obj, al->jump_sources,
3084                                                                             current_entry);
3085                                         obj__printf(obj, bf);
3086                                         obj__set_color(obj, prev);
3087                                 }
3088 print_addr:
3089                                 printed = scnprintf(bf, sizeof(bf), "%*" PRIx64 ": ",
3090                                                     notes->widths.target, addr);
3091                         } else if (ins__is_call(&disasm_line(al)->ins) &&
3092                                    notes->options->offset_level >= ANNOTATION__OFFSET_CALL) {
3093                                 goto print_addr;
3094                         } else if (notes->options->offset_level == ANNOTATION__MAX_OFFSET_LEVEL) {
3095                                 goto print_addr;
3096                         } else {
3097                                 printed = scnprintf(bf, sizeof(bf), "%-*s  ",
3098                                                     notes->widths.addr, " ");
3099                         }
3100                 }
3101
3102                 if (change_color)
3103                         color = obj__set_color(obj, HE_COLORSET_ADDR);
3104                 obj__printf(obj, bf);
3105                 if (change_color)
3106                         obj__set_color(obj, color);
3107
3108                 disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf), obj__printf, obj__write_graph);
3109
3110                 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width - 3 - printed, bf);
3111         }
3112
3113 }
3114
3115 void annotation_line__write(struct annotation_line *al, struct annotation *notes,
3116                             struct annotation_write_ops *wops,
3117                             struct annotation_options *opts)
3118 {
3119         __annotation_line__write(al, notes, wops->first_line, wops->current_entry,
3120                                  wops->change_color, wops->width, wops->obj,
3121                                  opts->percent_type,
3122                                  wops->set_color, wops->set_percent_color,
3123                                  wops->set_jumps_percent_color, wops->printf,
3124                                  wops->write_graph);
3125 }
3126
3127 int symbol__annotate2(struct map_symbol *ms, struct evsel *evsel,
3128                       struct annotation_options *options, struct arch **parch)
3129 {
3130         struct symbol *sym = ms->sym;
3131         struct annotation *notes = symbol__annotation(sym);
3132         size_t size = symbol__size(sym);
3133         int nr_pcnt = 1, err;
3134
3135         notes->offsets = zalloc(size * sizeof(struct annotation_line *));
3136         if (notes->offsets == NULL)
3137                 return ENOMEM;
3138
3139         if (evsel__is_group_event(evsel))
3140                 nr_pcnt = evsel->core.nr_members;
3141
3142         err = symbol__annotate(ms, evsel, options, parch);
3143         if (err)
3144                 goto out_free_offsets;
3145
3146         notes->options = options;
3147
3148         symbol__calc_percent(sym, evsel);
3149
3150         annotation__set_offsets(notes, size);
3151         annotation__mark_jump_targets(notes, sym);
3152         annotation__compute_ipc(notes, size);
3153         annotation__init_column_widths(notes, sym);
3154         notes->nr_events = nr_pcnt;
3155
3156         annotation__update_column_widths(notes);
3157         sym->annotate2 = 1;
3158
3159         return 0;
3160
3161 out_free_offsets:
3162         zfree(&notes->offsets);
3163         return err;
3164 }
3165
3166 static int annotation__config(const char *var, const char *value, void *data)
3167 {
3168         struct annotation_options *opt = data;
3169
3170         if (!strstarts(var, "annotate."))
3171                 return 0;
3172
3173         if (!strcmp(var, "annotate.offset_level")) {
3174                 perf_config_u8(&opt->offset_level, "offset_level", value);
3175
3176                 if (opt->offset_level > ANNOTATION__MAX_OFFSET_LEVEL)
3177                         opt->offset_level = ANNOTATION__MAX_OFFSET_LEVEL;
3178                 else if (opt->offset_level < ANNOTATION__MIN_OFFSET_LEVEL)
3179                         opt->offset_level = ANNOTATION__MIN_OFFSET_LEVEL;
3180         } else if (!strcmp(var, "annotate.hide_src_code")) {
3181                 opt->hide_src_code = perf_config_bool("hide_src_code", value);
3182         } else if (!strcmp(var, "annotate.jump_arrows")) {
3183                 opt->jump_arrows = perf_config_bool("jump_arrows", value);
3184         } else if (!strcmp(var, "annotate.show_linenr")) {
3185                 opt->show_linenr = perf_config_bool("show_linenr", value);
3186         } else if (!strcmp(var, "annotate.show_nr_jumps")) {
3187                 opt->show_nr_jumps = perf_config_bool("show_nr_jumps", value);
3188         } else if (!strcmp(var, "annotate.show_nr_samples")) {
3189                 symbol_conf.show_nr_samples = perf_config_bool("show_nr_samples",
3190                                                                 value);
3191         } else if (!strcmp(var, "annotate.show_total_period")) {
3192                 symbol_conf.show_total_period = perf_config_bool("show_total_period",
3193                                                                 value);
3194         } else if (!strcmp(var, "annotate.use_offset")) {
3195                 opt->use_offset = perf_config_bool("use_offset", value);
3196         } else if (!strcmp(var, "annotate.disassembler_style")) {
3197                 opt->disassembler_style = value;
3198         } else if (!strcmp(var, "annotate.demangle")) {
3199                 symbol_conf.demangle = perf_config_bool("demangle", value);
3200         } else if (!strcmp(var, "annotate.demangle_kernel")) {
3201                 symbol_conf.demangle_kernel = perf_config_bool("demangle_kernel", value);
3202         } else {
3203                 pr_debug("%s variable unknown, ignoring...", var);
3204         }
3205
3206         return 0;
3207 }
3208
3209 void annotation_config__init(struct annotation_options *opt)
3210 {
3211         perf_config(annotation__config, opt);
3212 }
3213
3214 static unsigned int parse_percent_type(char *str1, char *str2)
3215 {
3216         unsigned int type = (unsigned int) -1;
3217
3218         if (!strcmp("period", str1)) {
3219                 if (!strcmp("local", str2))
3220                         type = PERCENT_PERIOD_LOCAL;
3221                 else if (!strcmp("global", str2))
3222                         type = PERCENT_PERIOD_GLOBAL;
3223         }
3224
3225         if (!strcmp("hits", str1)) {
3226                 if (!strcmp("local", str2))
3227                         type = PERCENT_HITS_LOCAL;
3228                 else if (!strcmp("global", str2))
3229                         type = PERCENT_HITS_GLOBAL;
3230         }
3231
3232         return type;
3233 }
3234
3235 int annotate_parse_percent_type(const struct option *opt, const char *_str,
3236                                 int unset __maybe_unused)
3237 {
3238         struct annotation_options *opts = opt->value;
3239         unsigned int type;
3240         char *str1, *str2;
3241         int err = -1;
3242
3243         str1 = strdup(_str);
3244         if (!str1)
3245                 return -ENOMEM;
3246
3247         str2 = strchr(str1, '-');
3248         if (!str2)
3249                 goto out;
3250
3251         *str2++ = 0;
3252
3253         type = parse_percent_type(str1, str2);
3254         if (type == (unsigned int) -1)
3255                 type = parse_percent_type(str2, str1);
3256         if (type != (unsigned int) -1) {
3257                 opts->percent_type = type;
3258                 err = 0;
3259         }
3260
3261 out:
3262         free(str1);
3263         return err;
3264 }
3265
3266 int annotate_check_args(struct annotation_options *args)
3267 {
3268         if (args->prefix_strip && !args->prefix) {
3269                 pr_err("--prefix-strip requires --prefix\n");
3270                 return -1;
3271         }
3272         return 0;
3273 }