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 <regex.h>
  37 #include <pthread.h>
  38 #include <linux/bitops.h>
  39 #include <linux/kernel.h>
  40 #include <linux/string.h>
  41 #include <subcmd/parse-options.h>
  42 #include <subcmd/run-command.h>
  43
  44 /* FIXME: For the HE_COLORSET */
  45 #include "ui/browser.h"
  46
  47 /*
  48  * FIXME: Using the same values as slang.h,
  49  * but that header may not be available everywhere
  50  */
  51 #define LARROW_CHAR     ((unsigned char)',')
  52 #define RARROW_CHAR     ((unsigned char)'+')
  53 #define DARROW_CHAR     ((unsigned char)'.')
  54 #define UARROW_CHAR     ((unsigned char)'-')
  55
  56 #include <linux/ctype.h>
  57
  58 struct annotation_options annotation__default_options = {
  59         .use_offset     = true,
  60         .jump_arrows    = true,
  61         .annotate_src   = true,
  62         .offset_level   = ANNOTATION__OFFSET_JUMP_TARGETS,
  63         .percent_type   = PERCENT_PERIOD_LOCAL,
  64 };
  65
  66 static regex_t   file_lineno;
  67
  68 static struct ins_ops *ins__find(struct arch *arch, const char *name);
  69 static void ins__sort(struct arch *arch);
  70 static int disasm_line__parse(char *line, const char **namep, char **rawp);
  71
  72 struct arch {
  73         const char      *name;
  74         struct ins      *instructions;
  75         size_t          nr_instructions;
  76         size_t          nr_instructions_allocated;
  77         struct ins_ops  *(*associate_instruction_ops)(struct arch *arch, const char *name);
  78         bool            sorted_instructions;
  79         bool            initialized;
  80         void            *priv;
  81         unsigned int    model;
  82         unsigned int    family;
  83         int             (*init)(struct arch *arch, char *cpuid);
  84         bool            (*ins_is_fused)(struct arch *arch, const char *ins1,
  85                                         const char *ins2);
  86         struct          {
  87                 char comment_char;
  88                 char skip_functions_char;
  89         } objdump;
  90 };
  91
  92 static struct ins_ops call_ops;
  93 static struct ins_ops dec_ops;
  94 static struct ins_ops jump_ops;
  95 static struct ins_ops mov_ops;
  96 static struct ins_ops nop_ops;
  97 static struct ins_ops lock_ops;
  98 static struct ins_ops ret_ops;
  99
 100 static int arch__grow_instructions(struct arch *arch)
 101 {
 102         struct ins *new_instructions;
 103         size_t new_nr_allocated;
 104
 105         if (arch->nr_instructions_allocated == 0 && arch->instructions)
 106                 goto grow_from_non_allocated_table;
 107
 108         new_nr_allocated = arch->nr_instructions_allocated + 128;
 109         new_instructions = realloc(arch->instructions, new_nr_allocated * sizeof(struct ins));
 110         if (new_instructions == NULL)
 111                 return -1;
 112
 113 out_update_instructions:
 114         arch->instructions = new_instructions;
 115         arch->nr_instructions_allocated = new_nr_allocated;
 116         return 0;
 117
 118 grow_from_non_allocated_table:
 119         new_nr_allocated = arch->nr_instructions + 128;
 120         new_instructions = calloc(new_nr_allocated, sizeof(struct ins));
 121         if (new_instructions == NULL)
 122                 return -1;
 123
 124         memcpy(new_instructions, arch->instructions, arch->nr_instructions);
 125         goto out_update_instructions;
 126 }
 127
 128 static int arch__associate_ins_ops(struct arch* arch, const char *name, struct ins_ops *ops)
 129 {
 130         struct ins *ins;
 131
 132         if (arch->nr_instructions == arch->nr_instructions_allocated &&
 133             arch__grow_instructions(arch))
 134                 return -1;
 135
 136         ins = &arch->instructions[arch->nr_instructions];
 137         ins->name = strdup(name);
 138         if (!ins->name)
 139                 return -1;
 140
 141         ins->ops  = ops;
 142         arch->nr_instructions++;
 143
 144         ins__sort(arch);
 145         return 0;
 146 }
 147
 148 #include "arch/arc/annotate/instructions.c"
 149 #include "arch/arm/annotate/instructions.c"
 150 #include "arch/arm64/annotate/instructions.c"
 151 #include "arch/csky/annotate/instructions.c"
 152 #include "arch/mips/annotate/instructions.c"
 153 #include "arch/x86/annotate/instructions.c"
 154 #include "arch/powerpc/annotate/instructions.c"
 155 #include "arch/riscv64/annotate/instructions.c"
 156 #include "arch/s390/annotate/instructions.c"
 157 #include "arch/sparc/annotate/instructions.c"
 158
 159 static struct arch architectures[] = {
 160         {
 161                 .name = "arc",
 162                 .init = arc__annotate_init,
 163         },
 164         {
 165                 .name = "arm",
 166                 .init = arm__annotate_init,
 167         },
 168         {
 169                 .name = "arm64",
 170                 .init = arm64__annotate_init,
 171         },
 172         {
 173                 .name = "csky",
 174                 .init = csky__annotate_init,
 175         },
 176         {
 177                 .name = "mips",
 178                 .init = mips__annotate_init,
 179                 .objdump = {
 180                         .comment_char = '#',
 181                 },
 182         },
 183         {
 184                 .name = "x86",
 185                 .init = x86__annotate_init,
 186                 .instructions = x86__instructions,
 187                 .nr_instructions = ARRAY_SIZE(x86__instructions),
 188                 .objdump =  {
 189                         .comment_char = '#',
 190                 },
 191         },
 192         {
 193                 .name = "powerpc",
 194                 .init = powerpc__annotate_init,
 195         },
 196         {
 197                 .name = "riscv64",
 198                 .init = riscv64__annotate_init,
 199         },
 200         {
 201                 .name = "s390",
 202                 .init = s390__annotate_init,
 203                 .objdump =  {
 204                         .comment_char = '#',
 205                 },
 206         },
 207         {
 208                 .name = "sparc",
 209                 .init = sparc__annotate_init,
 210                 .objdump = {
 211                         .comment_char = '#',
 212                 },
 213         },
 214 };
 215
 216 static void ins__delete(struct ins_operands *ops)
 217 {
 218         if (ops == NULL)
 219                 return;
 220         zfree(&ops->source.raw);
 221         zfree(&ops->source.name);
 222         zfree(&ops->target.raw);
 223         zfree(&ops->target.name);
 224 }
 225
 226 static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size,
 227                               struct ins_operands *ops, int max_ins_name)
 228 {
 229         return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->raw);
 230 }
 231
 232 int ins__scnprintf(struct ins *ins, char *bf, size_t size,
 233                    struct ins_operands *ops, int max_ins_name)
 234 {
 235         if (ins->ops->scnprintf)
 236                 return ins->ops->scnprintf(ins, bf, size, ops, max_ins_name);
 237
 238         return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
 239 }
 240
 241 bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2)
 242 {
 243         if (!arch || !arch->ins_is_fused)
 244                 return false;
 245
 246         return arch->ins_is_fused(arch, ins1, ins2);
 247 }
 248
 249 static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
 250 {
 251         char *endptr, *tok, *name;
 252         struct map *map = ms->map;
 253         struct addr_map_symbol target = {
 254                 .ms = { .map = map, },
 255         };
 256
 257         ops->target.addr = strtoull(ops->raw, &endptr, 16);
 258
 259         name = strchr(endptr, '<');
 260         if (name == NULL)
 261                 goto indirect_call;
 262
 263         name++;
 264
 265         if (arch->objdump.skip_functions_char &&
 266             strchr(name, arch->objdump.skip_functions_char))
 267                 return -1;
 268
 269         tok = strchr(name, '>');
 270         if (tok == NULL)
 271                 return -1;
 272
 273         *tok = '\0';
 274         ops->target.name = strdup(name);
 275         *tok = '>';
 276
 277         if (ops->target.name == NULL)
 278                 return -1;
 279 find_target:
 280         target.addr = map__objdump_2mem(map, ops->target.addr);
 281
 282         if (maps__find_ams(ms->maps, &target) == 0 &&
 283             map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr)
 284                 ops->target.sym = target.ms.sym;
 285
 286         return 0;
 287
 288 indirect_call:
 289         tok = strchr(endptr, '*');
 290         if (tok != NULL) {
 291                 endptr++;
 292
 293                 /* Indirect call can use a non-rip register and offset: callq  *0x8(%rbx).
 294                  * Do not parse such instruction.  */
 295                 if (strstr(endptr, "(%r") == NULL)
 296                         ops->target.addr = strtoull(endptr, NULL, 16);
 297         }
 298         goto find_target;
 299 }
 300
 301 static int call__scnprintf(struct ins *ins, char *bf, size_t size,
 302                            struct ins_operands *ops, int max_ins_name)
 303 {
 304         if (ops->target.sym)
 305                 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name);
 306
 307         if (ops->target.addr == 0)
 308                 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
 309
 310         if (ops->target.name)
 311                 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.name);
 312
 313         return scnprintf(bf, size, "%-*s *%" PRIx64, max_ins_name, ins->name, ops->target.addr);
 314 }
 315
 316 static struct ins_ops call_ops = {
 317         .parse     = call__parse,
 318         .scnprintf = call__scnprintf,
 319 };
 320
 321 bool ins__is_call(const struct ins *ins)
 322 {
 323         return ins->ops == &call_ops || ins->ops == &s390_call_ops;
 324 }
 325
 326 /*
 327  * Prevents from matching commas in the comment section, e.g.:
 328  * ffff200008446e70:       b.cs    ffff2000084470f4 <generic_exec_single+0x314>  // b.hs, b.nlast
 329  *
 330  * and skip comma as part of function arguments, e.g.:
 331  * 1d8b4ac <linemap_lookup(line_maps const*, unsigned int)+0xcc>
 332  */
 333 static inline const char *validate_comma(const char *c, struct ins_operands *ops)
 334 {
 335         if (ops->raw_comment && c > ops->raw_comment)
 336                 return NULL;
 337
 338         if (ops->raw_func_start && c > ops->raw_func_start)
 339                 return NULL;
 340
 341         return c;
 342 }
 343
 344 static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
 345 {
 346         struct map *map = ms->map;
 347         struct symbol *sym = ms->sym;
 348         struct addr_map_symbol target = {
 349                 .ms = { .map = map, },
 350         };
 351         const char *c = strchr(ops->raw, ',');
 352         u64 start, end;
 353
 354         ops->raw_comment = strchr(ops->raw, arch->objdump.comment_char);
 355         ops->raw_func_start = strchr(ops->raw, '<');
 356
 357         c = validate_comma(c, ops);
 358
 359         /*
 360          * Examples of lines to parse for the _cpp_lex_token@@Base
 361          * function:
 362          *
 363          * 1159e6c: jne    115aa32 <_cpp_lex_token@@Base+0xf92>
 364          * 1159e8b: jne    c469be <cpp_named_operator2name@@Base+0xa72>
 365          *
 366          * The first is a jump to an offset inside the same function,
 367          * the second is to another function, i.e. that 0xa72 is an
 368          * offset in the cpp_named_operator2name@@base function.
 369          */
 370         /*
 371          * skip over possible up to 2 operands to get to address, e.g.:
 372          * tbnz  w0, #26, ffff0000083cd190 <security_file_permission+0xd0>
 373          */
 374         if (c++ != NULL) {
 375                 ops->target.addr = strtoull(c, NULL, 16);
 376                 if (!ops->target.addr) {
 377                         c = strchr(c, ',');
 378                         c = validate_comma(c, ops);
 379                         if (c++ != NULL)
 380                                 ops->target.addr = strtoull(c, NULL, 16);
 381                 }
 382         } else {
 383                 ops->target.addr = strtoull(ops->raw, NULL, 16);
 384         }
 385
 386         target.addr = map__objdump_2mem(map, ops->target.addr);
 387         start = map->unmap_ip(map, sym->start),
 388         end = map->unmap_ip(map, sym->end);
 389
 390         ops->target.outside = target.addr < start || target.addr > end;
 391
 392         /*
 393          * FIXME: things like this in _cpp_lex_token (gcc's cc1 program):
 394
 395                 cpp_named_operator2name@@Base+0xa72
 396
 397          * Point to a place that is after the cpp_named_operator2name
 398          * boundaries, i.e.  in the ELF symbol table for cc1
 399          * cpp_named_operator2name is marked as being 32-bytes long, but it in
 400          * fact is much larger than that, so we seem to need a symbols__find()
 401          * routine that looks for >= current->start and  < next_symbol->start,
 402          * possibly just for C++ objects?
 403          *
 404          * For now lets just make some progress by marking jumps to outside the
 405          * current function as call like.
 406          *
 407          * Actual navigation will come next, with further understanding of how
 408          * the symbol searching and disassembly should be done.
 409          */
 410         if (maps__find_ams(ms->maps, &target) == 0 &&
 411             map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr)
 412                 ops->target.sym = target.ms.sym;
 413
 414         if (!ops->target.outside) {
 415                 ops->target.offset = target.addr - start;
 416                 ops->target.offset_avail = true;
 417         } else {
 418                 ops->target.offset_avail = false;
 419         }
 420
 421         return 0;
 422 }
 423
 424 static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
 425                            struct ins_operands *ops, int max_ins_name)
 426 {
 427         const char *c;
 428
 429         if (!ops->target.addr || ops->target.offset < 0)
 430                 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
 431
 432         if (ops->target.outside && ops->target.sym != NULL)
 433                 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name);
 434
 435         c = strchr(ops->raw, ',');
 436         c = validate_comma(c, ops);
 437
 438         if (c != NULL) {
 439                 const char *c2 = strchr(c + 1, ',');
 440
 441                 c2 = validate_comma(c2, ops);
 442                 /* check for 3-op insn */
 443                 if (c2 != NULL)
 444                         c = c2;
 445                 c++;
 446
 447                 /* mirror arch objdump's space-after-comma style */
 448                 if (*c == ' ')
 449                         c++;
 450         }
 451
 452         return scnprintf(bf, size, "%-*s %.*s%" PRIx64, max_ins_name,
 453                          ins->name, c ? c - ops->raw : 0, ops->raw,
 454                          ops->target.offset);
 455 }
 456
 457 static struct ins_ops jump_ops = {
 458         .parse     = jump__parse,
 459         .scnprintf = jump__scnprintf,
 460 };
 461
 462 bool ins__is_jump(const struct ins *ins)
 463 {
 464         return ins->ops == &jump_ops;
 465 }
 466
 467 static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep)
 468 {
 469         char *endptr, *name, *t;
 470
 471         if (strstr(raw, "(%rip)") == NULL)
 472                 return 0;
 473
 474         *addrp = strtoull(comment, &endptr, 16);
 475         if (endptr == comment)
 476                 return 0;
 477         name = strchr(endptr, '<');
 478         if (name == NULL)
 479                 return -1;
 480
 481         name++;
 482
 483         t = strchr(name, '>');
 484         if (t == NULL)
 485                 return 0;
 486
 487         *t = '\0';
 488         *namep = strdup(name);
 489         *t = '>';
 490
 491         return 0;
 492 }
 493
 494 static int lock__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
 495 {
 496         ops->locked.ops = zalloc(sizeof(*ops->locked.ops));
 497         if (ops->locked.ops == NULL)
 498                 return 0;
 499
 500         if (disasm_line__parse(ops->raw, &ops->locked.ins.name, &ops->locked.ops->raw) < 0)
 501                 goto out_free_ops;
 502
 503         ops->locked.ins.ops = ins__find(arch, ops->locked.ins.name);
 504
 505         if (ops->locked.ins.ops == NULL)
 506                 goto out_free_ops;
 507
 508         if (ops->locked.ins.ops->parse &&
 509             ops->locked.ins.ops->parse(arch, ops->locked.ops, ms) < 0)
 510                 goto out_free_ops;
 511
 512         return 0;
 513
 514 out_free_ops:
 515         zfree(&ops->locked.ops);
 516         return 0;
 517 }
 518
 519 static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
 520                            struct ins_operands *ops, int max_ins_name)
 521 {
 522         int printed;
 523
 524         if (ops->locked.ins.ops == NULL)
 525                 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
 526
 527         printed = scnprintf(bf, size, "%-*s ", max_ins_name, ins->name);
 528         return printed + ins__scnprintf(&ops->locked.ins, bf + printed,
 529                                         size - printed, ops->locked.ops, max_ins_name);
 530 }
 531
 532 static void lock__delete(struct ins_operands *ops)
 533 {
 534         struct ins *ins = &ops->locked.ins;
 535
 536         if (ins->ops && ins->ops->free)
 537                 ins->ops->free(ops->locked.ops);
 538         else
 539                 ins__delete(ops->locked.ops);
 540
 541         zfree(&ops->locked.ops);
 542         zfree(&ops->target.raw);
 543         zfree(&ops->target.name);
 544 }
 545
 546 static struct ins_ops lock_ops = {
 547         .free      = lock__delete,
 548         .parse     = lock__parse,
 549         .scnprintf = lock__scnprintf,
 550 };
 551
 552 static int mov__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)
 553 {
 554         char *s = strchr(ops->raw, ','), *target, *comment, prev;
 555
 556         if (s == NULL)
 557                 return -1;
 558
 559         *s = '\0';
 560         ops->source.raw = strdup(ops->raw);
 561         *s = ',';
 562
 563         if (ops->source.raw == NULL)
 564                 return -1;
 565
 566         target = ++s;
 567         comment = strchr(s, arch->objdump.comment_char);
 568
 569         if (comment != NULL)
 570                 s = comment - 1;
 571         else
 572                 s = strchr(s, '\0') - 1;
 573
 574         while (s > target && isspace(s[0]))
 575                 --s;
 576         s++;
 577         prev = *s;
 578         *s = '\0';
 579
 580         ops->target.raw = strdup(target);
 581         *s = prev;
 582
 583         if (ops->target.raw == NULL)
 584                 goto out_free_source;
 585
 586         if (comment == NULL)
 587                 return 0;
 588
 589         comment = skip_spaces(comment);
 590         comment__symbol(ops->source.raw, comment + 1, &ops->source.addr, &ops->source.name);
 591         comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name);
 592
 593         return 0;
 594
 595 out_free_source:
 596         zfree(&ops->source.raw);
 597         return -1;
 598 }
 599
 600 static int mov__scnprintf(struct ins *ins, char *bf, size_t size,
 601                            struct ins_operands *ops, int max_ins_name)
 602 {
 603         return scnprintf(bf, size, "%-*s %s,%s", max_ins_name, ins->name,
 604                          ops->source.name ?: ops->source.raw,
 605                          ops->target.name ?: ops->target.raw);
 606 }
 607
 608 static struct ins_ops mov_ops = {
 609         .parse     = mov__parse,
 610         .scnprintf = mov__scnprintf,
 611 };
 612
 613 static int dec__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)
 614 {
 615         char *target, *comment, *s, prev;
 616
 617         target = s = ops->raw;
 618
 619         while (s[0] != '\0' && !isspace(s[0]))
 620                 ++s;
 621         prev = *s;
 622         *s = '\0';
 623
 624         ops->target.raw = strdup(target);
 625         *s = prev;
 626
 627         if (ops->target.raw == NULL)
 628                 return -1;
 629
 630         comment = strchr(s, arch->objdump.comment_char);
 631         if (comment == NULL)
 632                 return 0;
 633
 634         comment = skip_spaces(comment);
 635         comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name);
 636
 637         return 0;
 638 }
 639
 640 static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
 641                            struct ins_operands *ops, int max_ins_name)
 642 {
 643         return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name,
 644                          ops->target.name ?: ops->target.raw);
 645 }
 646
 647 static struct ins_ops dec_ops = {
 648         .parse     = dec__parse,
 649         .scnprintf = dec__scnprintf,
 650 };
 651
 652 static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size,
 653                           struct ins_operands *ops __maybe_unused, int max_ins_name)
 654 {
 655         return scnprintf(bf, size, "%-*s", max_ins_name, "nop");
 656 }
 657
 658 static struct ins_ops nop_ops = {
 659         .scnprintf = nop__scnprintf,
 660 };
 661
 662 static struct ins_ops ret_ops = {
 663         .scnprintf = ins__raw_scnprintf,
 664 };
 665
 666 bool ins__is_ret(const struct ins *ins)
 667 {
 668         return ins->ops == &ret_ops;
 669 }
 670
 671 bool ins__is_lock(const struct ins *ins)
 672 {
 673         return ins->ops == &lock_ops;
 674 }
 675
 676 static int ins__key_cmp(const void *name, const void *insp)
 677 {
 678         const struct ins *ins = insp;
 679
 680         return strcmp(name, ins->name);
 681 }
 682
 683 static int ins__cmp(const void *a, const void *b)
 684 {
 685         const struct ins *ia = a;
 686         const struct ins *ib = b;
 687
 688         return strcmp(ia->name, ib->name);
 689 }
 690
 691 static void ins__sort(struct arch *arch)
 692 {
 693         const int nmemb = arch->nr_instructions;
 694
 695         qsort(arch->instructions, nmemb, sizeof(struct ins), ins__cmp);
 696 }
 697
 698 static struct ins_ops *__ins__find(struct arch *arch, const char *name)
 699 {
 700         struct ins *ins;
 701         const int nmemb = arch->nr_instructions;
 702
 703         if (!arch->sorted_instructions) {
 704                 ins__sort(arch);
 705                 arch->sorted_instructions = true;
 706         }
 707
 708         ins = bsearch(name, arch->instructions, nmemb, sizeof(struct ins), ins__key_cmp);
 709         return ins ? ins->ops : NULL;
 710 }
 711
 712 static struct ins_ops *ins__find(struct arch *arch, const char *name)
 713 {
 714         struct ins_ops *ops = __ins__find(arch, name);
 715
 716         if (!ops && arch->associate_instruction_ops)
 717                 ops = arch->associate_instruction_ops(arch, name);
 718
 719         return ops;
 720 }
 721
 722 static int arch__key_cmp(const void *name, const void *archp)
 723 {
 724         const struct arch *arch = archp;
 725
 726         return strcmp(name, arch->name);
 727 }
 728
 729 static int arch__cmp(const void *a, const void *b)
 730 {
 731         const struct arch *aa = a;
 732         const struct arch *ab = b;
 733
 734         return strcmp(aa->name, ab->name);
 735 }
 736
 737 static void arch__sort(void)
 738 {
 739         const int nmemb = ARRAY_SIZE(architectures);
 740
 741         qsort(architectures, nmemb, sizeof(struct arch), arch__cmp);
 742 }
 743
 744 static struct arch *arch__find(const char *name)
 745 {
 746         const int nmemb = ARRAY_SIZE(architectures);
 747         static bool sorted;
 748
 749         if (!sorted) {
 750                 arch__sort();
 751                 sorted = true;
 752         }
 753
 754         return bsearch(name, architectures, nmemb, sizeof(struct arch), arch__key_cmp);
 755 }
 756
 757 static struct annotated_source *annotated_source__new(void)
 758 {
 759         struct annotated_source *src = zalloc(sizeof(*src));
 760
 761         if (src != NULL)
 762                 INIT_LIST_HEAD(&src->source);
 763
 764         return src;
 765 }
 766
 767 static __maybe_unused void annotated_source__delete(struct annotated_source *src)
 768 {
 769         if (src == NULL)
 770                 return;
 771         zfree(&src->histograms);
 772         zfree(&src->cycles_hist);
 773         free(src);
 774 }
 775
 776 static int annotated_source__alloc_histograms(struct annotated_source *src,
 777                                               size_t size, int nr_hists)
 778 {
 779         size_t sizeof_sym_hist;
 780
 781         /*
 782          * Add buffer of one element for zero length symbol.
 783          * When sample is taken from first instruction of
 784          * zero length symbol, perf still resolves it and
 785          * shows symbol name in perf report and allows to
 786          * annotate it.
 787          */
 788         if (size == 0)
 789                 size = 1;
 790
 791         /* Check for overflow when calculating sizeof_sym_hist */
 792         if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(struct sym_hist_entry))
 793                 return -1;
 794
 795         sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(struct sym_hist_entry));
 796
 797         /* Check for overflow in zalloc argument */
 798         if (sizeof_sym_hist > SIZE_MAX / nr_hists)
 799                 return -1;
 800
 801         src->sizeof_sym_hist = sizeof_sym_hist;
 802         src->nr_histograms   = nr_hists;
 803         src->histograms      = calloc(nr_hists, sizeof_sym_hist) ;
 804         return src->histograms ? 0 : -1;
 805 }
 806
 807 /* The cycles histogram is lazily allocated. */
 808 static int symbol__alloc_hist_cycles(struct symbol *sym)
 809 {
 810         struct annotation *notes = symbol__annotation(sym);
 811         const size_t size = symbol__size(sym);
 812
 813         notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist));
 814         if (notes->src->cycles_hist == NULL)
 815                 return -1;
 816         return 0;
 817 }
 818
 819 void symbol__annotate_zero_histograms(struct symbol *sym)
 820 {
 821         struct annotation *notes = symbol__annotation(sym);
 822
 823         pthread_mutex_lock(&notes->lock);
 824         if (notes->src != NULL) {
 825                 memset(notes->src->histograms, 0,
 826                        notes->src->nr_histograms * notes->src->sizeof_sym_hist);
 827                 if (notes->src->cycles_hist)
 828                         memset(notes->src->cycles_hist, 0,
 829                                 symbol__size(sym) * sizeof(struct cyc_hist));
 830         }
 831         pthread_mutex_unlock(&notes->lock);
 832 }
 833
 834 static int __symbol__account_cycles(struct cyc_hist *ch,
 835                                     u64 start,
 836                                     unsigned offset, unsigned cycles,
 837                                     unsigned have_start)
 838 {
 839         /*
 840          * For now we can only account one basic block per
 841          * final jump. But multiple could be overlapping.
 842          * Always account the longest one. So when
 843          * a shorter one has been already seen throw it away.
 844          *
 845          * We separately always account the full cycles.
 846          */
 847         ch[offset].num_aggr++;
 848         ch[offset].cycles_aggr += cycles;
 849
 850         if (cycles > ch[offset].cycles_max)
 851                 ch[offset].cycles_max = cycles;
 852
 853         if (ch[offset].cycles_min) {
 854                 if (cycles && cycles < ch[offset].cycles_min)
 855                         ch[offset].cycles_min = cycles;
 856         } else
 857                 ch[offset].cycles_min = cycles;
 858
 859         if (!have_start && ch[offset].have_start)
 860                 return 0;
 861         if (ch[offset].num) {
 862                 if (have_start && (!ch[offset].have_start ||
 863                                    ch[offset].start > start)) {
 864                         ch[offset].have_start = 0;
 865                         ch[offset].cycles = 0;
 866                         ch[offset].num = 0;
 867                         if (ch[offset].reset < 0xffff)
 868                                 ch[offset].reset++;
 869                 } else if (have_start &&
 870                            ch[offset].start < start)
 871                         return 0;
 872         }
 873
 874         if (ch[offset].num < NUM_SPARKS)
 875                 ch[offset].cycles_spark[ch[offset].num] = cycles;
 876
 877         ch[offset].have_start = have_start;
 878         ch[offset].start = start;
 879         ch[offset].cycles += cycles;
 880         ch[offset].num++;
 881         return 0;
 882 }
 883
 884 static int __symbol__inc_addr_samples(struct map_symbol *ms,
 885                                       struct annotated_source *src, int evidx, u64 addr,
 886                                       struct perf_sample *sample)
 887 {
 888         struct symbol *sym = ms->sym;
 889         unsigned offset;
 890         struct sym_hist *h;
 891
 892         pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, ms->map->unmap_ip(ms->map, addr));
 893
 894         if ((addr < sym->start || addr >= sym->end) &&
 895             (addr != sym->end || sym->start != sym->end)) {
 896                 pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n",
 897                        __func__, __LINE__, sym->name, sym->start, addr, sym->end);
 898                 return -ERANGE;
 899         }
 900
 901         offset = addr - sym->start;
 902         h = annotated_source__histogram(src, evidx);
 903         if (h == NULL) {
 904                 pr_debug("%s(%d): ENOMEM! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 ", func: %d\n",
 905                          __func__, __LINE__, sym->name, sym->start, addr, sym->end, sym->type == STT_FUNC);
 906                 return -ENOMEM;
 907         }
 908         h->nr_samples++;
 909         h->addr[offset].nr_samples++;
 910         h->period += sample->period;
 911         h->addr[offset].period += sample->period;
 912
 913         pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64
 914                   ", evidx=%d] => nr_samples: %" PRIu64 ", period: %" PRIu64 "\n",
 915                   sym->start, sym->name, addr, addr - sym->start, evidx,
 916                   h->addr[offset].nr_samples, h->addr[offset].period);
 917         return 0;
 918 }
 919
 920 static struct cyc_hist *symbol__cycles_hist(struct symbol *sym)
 921 {
 922         struct annotation *notes = symbol__annotation(sym);
 923
 924         if (notes->src == NULL) {
 925                 notes->src = annotated_source__new();
 926                 if (notes->src == NULL)
 927                         return NULL;
 928                 goto alloc_cycles_hist;
 929         }
 930
 931         if (!notes->src->cycles_hist) {
 932 alloc_cycles_hist:
 933                 symbol__alloc_hist_cycles(sym);
 934         }
 935
 936         return notes->src->cycles_hist;
 937 }
 938
 939 struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists)
 940 {
 941         struct annotation *notes = symbol__annotation(sym);
 942
 943         if (notes->src == NULL) {
 944                 notes->src = annotated_source__new();
 945                 if (notes->src == NULL)
 946                         return NULL;
 947                 goto alloc_histograms;
 948         }
 949
 950         if (notes->src->histograms == NULL) {
 951 alloc_histograms:
 952                 annotated_source__alloc_histograms(notes->src, symbol__size(sym),
 953                                                    nr_hists);
 954         }
 955
 956         return notes->src;
 957 }
 958
 959 static int symbol__inc_addr_samples(struct map_symbol *ms,
 960                                     struct evsel *evsel, u64 addr,
 961                                     struct perf_sample *sample)
 962 {
 963         struct symbol *sym = ms->sym;
 964         struct annotated_source *src;
 965
 966         if (sym == NULL)
 967                 return 0;
 968         src = symbol__hists(sym, evsel->evlist->core.nr_entries);
 969         return src ? __symbol__inc_addr_samples(ms, src, evsel->core.idx, addr, sample) : 0;
 970 }
 971
 972 static int symbol__account_cycles(u64 addr, u64 start,
 973                                   struct symbol *sym, unsigned cycles)
 974 {
 975         struct cyc_hist *cycles_hist;
 976         unsigned offset;
 977
 978         if (sym == NULL)
 979                 return 0;
 980         cycles_hist = symbol__cycles_hist(sym);
 981         if (cycles_hist == NULL)
 982                 return -ENOMEM;
 983         if (addr < sym->start || addr >= sym->end)
 984                 return -ERANGE;
 985
 986         if (start) {
 987                 if (start < sym->start || start >= sym->end)
 988                         return -ERANGE;
 989                 if (start >= addr)
 990                         start = 0;
 991         }
 992         offset = addr - sym->start;
 993         return __symbol__account_cycles(cycles_hist,
 994                                         start ? start - sym->start : 0,
 995                                         offset, cycles,
 996                                         !!start);
 997 }
 998
 999 int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
1000                                     struct addr_map_symbol *start,
1001                                     unsigned cycles)
1002 {
1003         u64 saddr = 0;
1004         int err;
1005
1006         if (!cycles)
1007                 return 0;
1008
1009         /*
1010          * Only set start when IPC can be computed. We can only
1011          * compute it when the basic block is completely in a single
1012          * function.
1013          * Special case the case when the jump is elsewhere, but
1014          * it starts on the function start.
1015          */
1016         if (start &&
1017                 (start->ms.sym == ams->ms.sym ||
1018                  (ams->ms.sym &&
1019                    start->addr == ams->ms.sym->start + ams->ms.map->start)))
1020                 saddr = start->al_addr;
1021         if (saddr == 0)
1022                 pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n",
1023                         ams->addr,
1024                         start ? start->addr : 0,
1025                         ams->ms.sym ? ams->ms.sym->start + ams->ms.map->start : 0,
1026                         saddr);
1027         err = symbol__account_cycles(ams->al_addr, saddr, ams->ms.sym, cycles);
1028         if (err)
1029                 pr_debug2("account_cycles failed %d\n", err);
1030         return err;
1031 }
1032
1033 static unsigned annotation__count_insn(struct annotation *notes, u64 start, u64 end)
1034 {
1035         unsigned n_insn = 0;
1036         u64 offset;
1037
1038         for (offset = start; offset <= end; offset++) {
1039                 if (notes->offsets[offset])
1040                         n_insn++;
1041         }
1042         return n_insn;
1043 }
1044
1045 static void annotation__count_and_fill(struct annotation *notes, u64 start, u64 end, struct cyc_hist *ch)
1046 {
1047         unsigned n_insn;
1048         unsigned int cover_insn = 0;
1049         u64 offset;
1050
1051         n_insn = annotation__count_insn(notes, start, end);
1052         if (n_insn && ch->num && ch->cycles) {
1053                 float ipc = n_insn / ((double)ch->cycles / (double)ch->num);
1054
1055                 /* Hide data when there are too many overlaps. */
1056                 if (ch->reset >= 0x7fff)
1057                         return;
1058
1059                 for (offset = start; offset <= end; offset++) {
1060                         struct annotation_line *al = notes->offsets[offset];
1061
1062                         if (al && al->ipc == 0.0) {
1063                                 al->ipc = ipc;
1064                                 cover_insn++;
1065                         }
1066                 }
1067
1068                 if (cover_insn) {
1069                         notes->hit_cycles += ch->cycles;
1070                         notes->hit_insn += n_insn * ch->num;
1071                         notes->cover_insn += cover_insn;
1072                 }
1073         }
1074 }
1075
1076 void annotation__compute_ipc(struct annotation *notes, size_t size)
1077 {
1078         s64 offset;
1079
1080         if (!notes->src || !notes->src->cycles_hist)
1081                 return;
1082
1083         notes->total_insn = annotation__count_insn(notes, 0, size - 1);
1084         notes->hit_cycles = 0;
1085         notes->hit_insn = 0;
1086         notes->cover_insn = 0;
1087
1088         pthread_mutex_lock(&notes->lock);
1089         for (offset = size - 1; offset >= 0; --offset) {
1090                 struct cyc_hist *ch;
1091
1092                 ch = &notes->src->cycles_hist[offset];
1093                 if (ch && ch->cycles) {
1094                         struct annotation_line *al;
1095
1096                         if (ch->have_start)
1097                                 annotation__count_and_fill(notes, ch->start, offset, ch);
1098                         al = notes->offsets[offset];
1099                         if (al && ch->num_aggr) {
1100                                 al->cycles = ch->cycles_aggr / ch->num_aggr;
1101                                 al->cycles_max = ch->cycles_max;
1102                                 al->cycles_min = ch->cycles_min;
1103                         }
1104                         notes->have_cycles = true;
1105                 }
1106         }
1107         pthread_mutex_unlock(&notes->lock);
1108 }
1109
1110 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
1111                                  struct evsel *evsel)
1112 {
1113         return symbol__inc_addr_samples(&ams->ms, evsel, ams->al_addr, sample);
1114 }
1115
1116 int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample,
1117                                  struct evsel *evsel, u64 ip)
1118 {
1119         return symbol__inc_addr_samples(&he->ms, evsel, ip, sample);
1120 }
1121
1122 static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, struct map_symbol *ms)
1123 {
1124         dl->ins.ops = ins__find(arch, dl->ins.name);
1125
1126         if (!dl->ins.ops)
1127                 return;
1128
1129         if (dl->ins.ops->parse && dl->ins.ops->parse(arch, &dl->ops, ms) < 0)
1130                 dl->ins.ops = NULL;
1131 }
1132
1133 static int disasm_line__parse(char *line, const char **namep, char **rawp)
1134 {
1135         char tmp, *name = skip_spaces(line);
1136
1137         if (name[0] == '\0')
1138                 return -1;
1139
1140         *rawp = name + 1;
1141
1142         while ((*rawp)[0] != '\0' && !isspace((*rawp)[0]))
1143                 ++*rawp;
1144
1145         tmp = (*rawp)[0];
1146         (*rawp)[0] = '\0';
1147         *namep = strdup(name);
1148
1149         if (*namep == NULL)
1150                 goto out;
1151
1152         (*rawp)[0] = tmp;
1153         *rawp = strim(*rawp);
1154
1155         return 0;
1156
1157 out:
1158         return -1;
1159 }
1160
1161 struct annotate_args {
1162         struct arch               *arch;
1163         struct map_symbol         ms;
1164         struct evsel              *evsel;
1165         struct annotation_options *options;
1166         s64                       offset;
1167         char                      *line;
1168         int                       line_nr;
1169         char                      *fileloc;
1170 };
1171
1172 static void annotation_line__init(struct annotation_line *al,
1173                                   struct annotate_args *args,
1174                                   int nr)
1175 {
1176         al->offset = args->offset;
1177         al->line = strdup(args->line);
1178         al->line_nr = args->line_nr;
1179         al->fileloc = args->fileloc;
1180         al->data_nr = nr;
1181 }
1182
1183 static void annotation_line__exit(struct annotation_line *al)
1184 {
1185         free_srcline(al->path);
1186         zfree(&al->line);
1187 }
1188
1189 static size_t disasm_line_size(int nr)
1190 {
1191         struct annotation_line *al;
1192
1193         return (sizeof(struct disasm_line) + (sizeof(al->data[0]) * nr));
1194 }
1195
1196 /*
1197  * Allocating the disasm annotation line data with
1198  * following structure:
1199  *
1200  *    -------------------------------------------
1201  *    struct disasm_line | struct annotation_line
1202  *    -------------------------------------------
1203  *
1204  * We have 'struct annotation_line' member as last member
1205  * of 'struct disasm_line' to have an easy access.
1206  */
1207 static struct disasm_line *disasm_line__new(struct annotate_args *args)
1208 {
1209         struct disasm_line *dl = NULL;
1210         int nr = 1;
1211
1212         if (evsel__is_group_event(args->evsel))
1213                 nr = args->evsel->core.nr_members;
1214
1215         dl = zalloc(disasm_line_size(nr));
1216         if (!dl)
1217                 return NULL;
1218
1219         annotation_line__init(&dl->al, args, nr);
1220         if (dl->al.line == NULL)
1221                 goto out_delete;
1222
1223         if (args->offset != -1) {
1224                 if (disasm_line__parse(dl->al.line, &dl->ins.name, &dl->ops.raw) < 0)
1225                         goto out_free_line;
1226
1227                 disasm_line__init_ins(dl, args->arch, &args->ms);
1228         }
1229
1230         return dl;
1231
1232 out_free_line:
1233         zfree(&dl->al.line);
1234 out_delete:
1235         free(dl);
1236         return NULL;
1237 }
1238
1239 void disasm_line__free(struct disasm_line *dl)
1240 {
1241         if (dl->ins.ops && dl->ins.ops->free)
1242                 dl->ins.ops->free(&dl->ops);
1243         else
1244                 ins__delete(&dl->ops);
1245         zfree(&dl->ins.name);
1246         annotation_line__exit(&dl->al);
1247         free(dl);
1248 }
1249
1250 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw, int max_ins_name)
1251 {
1252         if (raw || !dl->ins.ops)
1253                 return scnprintf(bf, size, "%-*s %s", max_ins_name, dl->ins.name, dl->ops.raw);
1254
1255         return ins__scnprintf(&dl->ins, bf, size, &dl->ops, max_ins_name);
1256 }
1257
1258 static void annotation_line__add(struct annotation_line *al, struct list_head *head)
1259 {
1260         list_add_tail(&al->node, head);
1261 }
1262
1263 struct annotation_line *
1264 annotation_line__next(struct annotation_line *pos, struct list_head *head)
1265 {
1266         list_for_each_entry_continue(pos, head, node)
1267                 if (pos->offset >= 0)
1268                         return pos;
1269
1270         return NULL;
1271 }
1272
1273 static const char *annotate__address_color(struct block_range *br)
1274 {
1275         double cov = block_range__coverage(br);
1276
1277         if (cov >= 0) {
1278                 /* mark red for >75% coverage */
1279                 if (cov > 0.75)
1280                         return PERF_COLOR_RED;
1281
1282                 /* mark dull for <1% coverage */
1283                 if (cov < 0.01)
1284                         return PERF_COLOR_NORMAL;
1285         }
1286
1287         return PERF_COLOR_MAGENTA;
1288 }
1289
1290 static const char *annotate__asm_color(struct block_range *br)
1291 {
1292         double cov = block_range__coverage(br);
1293
1294         if (cov >= 0) {
1295                 /* mark dull for <1% coverage */
1296                 if (cov < 0.01)
1297                         return PERF_COLOR_NORMAL;
1298         }
1299
1300         return PERF_COLOR_BLUE;
1301 }
1302
1303 static void annotate__branch_printf(struct block_range *br, u64 addr)
1304 {
1305         bool emit_comment = true;
1306
1307         if (!br)
1308                 return;
1309
1310 #if 1
1311         if (br->is_target && br->start == addr) {
1312                 struct block_range *branch = br;
1313                 double p;
1314
1315                 /*
1316                  * Find matching branch to our target.
1317                  */
1318                 while (!branch->is_branch)
1319                         branch = block_range__next(branch);
1320
1321                 p = 100 *(double)br->entry / branch->coverage;
1322
1323                 if (p > 0.1) {
1324                         if (emit_comment) {
1325                                 emit_comment = false;
1326                                 printf("\t#");
1327                         }
1328
1329                         /*
1330                          * The percentage of coverage joined at this target in relation
1331                          * to the next branch.
1332                          */
1333                         printf(" +%.2f%%", p);
1334                 }
1335         }
1336 #endif
1337         if (br->is_branch && br->end == addr) {
1338                 double p = 100*(double)br->taken / br->coverage;
1339
1340                 if (p > 0.1) {
1341                         if (emit_comment) {
1342                                 emit_comment = false;
1343                                 printf("\t#");
1344                         }
1345
1346                         /*
1347                          * The percentage of coverage leaving at this branch, and
1348                          * its prediction ratio.
1349                          */
1350                         printf(" -%.2f%% (p:%.2f%%)", p, 100*(double)br->pred  / br->taken);
1351                 }
1352         }
1353 }
1354
1355 static int disasm_line__print(struct disasm_line *dl, u64 start, int addr_fmt_width)
1356 {
1357         s64 offset = dl->al.offset;
1358         const u64 addr = start + offset;
1359         struct block_range *br;
1360
1361         br = block_range__find(addr);
1362         color_fprintf(stdout, annotate__address_color(br), "  %*" PRIx64 ":", addr_fmt_width, addr);
1363         color_fprintf(stdout, annotate__asm_color(br), "%s", dl->al.line);
1364         annotate__branch_printf(br, addr);
1365         return 0;
1366 }
1367
1368 static int
1369 annotation_line__print(struct annotation_line *al, struct symbol *sym, u64 start,
1370                        struct evsel *evsel, u64 len, int min_pcnt, int printed,
1371                        int max_lines, struct annotation_line *queue, int addr_fmt_width,
1372                        int percent_type)
1373 {
1374         struct disasm_line *dl = container_of(al, struct disasm_line, al);
1375         static const char *prev_line;
1376
1377         if (al->offset != -1) {
1378                 double max_percent = 0.0;
1379                 int i, nr_percent = 1;
1380                 const char *color;
1381                 struct annotation *notes = symbol__annotation(sym);
1382
1383                 for (i = 0; i < al->data_nr; i++) {
1384                         double percent;
1385
1386                         percent = annotation_data__percent(&al->data[i],
1387                                                            percent_type);
1388
1389                         if (percent > max_percent)
1390                                 max_percent = percent;
1391                 }
1392
1393                 if (al->data_nr > nr_percent)
1394                         nr_percent = al->data_nr;
1395
1396                 if (max_percent < min_pcnt)
1397                         return -1;
1398
1399                 if (max_lines && printed >= max_lines)
1400                         return 1;
1401
1402                 if (queue != NULL) {
1403                         list_for_each_entry_from(queue, &notes->src->source, node) {
1404                                 if (queue == al)
1405                                         break;
1406                                 annotation_line__print(queue, sym, start, evsel, len,
1407                                                        0, 0, 1, NULL, addr_fmt_width,
1408                                                        percent_type);
1409                         }
1410                 }
1411
1412                 color = get_percent_color(max_percent);
1413
1414                 for (i = 0; i < nr_percent; i++) {
1415                         struct annotation_data *data = &al->data[i];
1416                         double percent;
1417
1418                         percent = annotation_data__percent(data, percent_type);
1419                         color = get_percent_color(percent);
1420
1421                         if (symbol_conf.show_total_period)
1422                                 color_fprintf(stdout, color, " %11" PRIu64,
1423                                               data->he.period);
1424                         else if (symbol_conf.show_nr_samples)
1425                                 color_fprintf(stdout, color, " %7" PRIu64,
1426                                               data->he.nr_samples);
1427                         else
1428                                 color_fprintf(stdout, color, " %7.2f", percent);
1429                 }
1430
1431                 printf(" : ");
1432
1433                 disasm_line__print(dl, start, addr_fmt_width);
1434
1435                 /*
1436                  * Also color the filename and line if needed, with
1437                  * the same color than the percentage. Don't print it
1438                  * twice for close colored addr with the same filename:line
1439                  */
1440                 if (al->path) {
1441                         if (!prev_line || strcmp(prev_line, al->path)) {
1442                                 color_fprintf(stdout, color, " // %s", al->path);
1443                                 prev_line = al->path;
1444                         }
1445                 }
1446
1447                 printf("\n");
1448         } else if (max_lines && printed >= max_lines)
1449                 return 1;
1450         else {
1451                 int width = symbol_conf.show_total_period ? 12 : 8;
1452
1453                 if (queue)
1454                         return -1;
1455
1456                 if (evsel__is_group_event(evsel))
1457                         width *= evsel->core.nr_members;
1458
1459                 if (!*al->line)
1460                         printf(" %*s:\n", width, " ");
1461                 else
1462                         printf(" %*s: %-*d %s\n", width, " ", addr_fmt_width, al->line_nr, al->line);
1463         }
1464
1465         return 0;
1466 }
1467
1468 /*
1469  * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw)
1470  * which looks like following
1471  *
1472  *  0000000000415500 <_init>:
1473  *    415500:       sub    $0x8,%rsp
1474  *    415504:       mov    0x2f5ad5(%rip),%rax        # 70afe0 <_DYNAMIC+0x2f8>
1475  *    41550b:       test   %rax,%rax
1476  *    41550e:       je     415515 <_init+0x15>
1477  *    415510:       callq  416e70 <__gmon_start__@plt>
1478  *    415515:       add    $0x8,%rsp
1479  *    415519:       retq
1480  *
1481  * it will be parsed and saved into struct disasm_line as
1482  *  <offset>       <name>  <ops.raw>
1483  *
1484  * The offset will be a relative offset from the start of the symbol and -1
1485  * means that it's not a disassembly line so should be treated differently.
1486  * The ops.raw part will be parsed further according to type of the instruction.
1487  */
1488 static int symbol__parse_objdump_line(struct symbol *sym,
1489                                       struct annotate_args *args,
1490                                       char *parsed_line, int *line_nr, char **fileloc)
1491 {
1492         struct map *map = args->ms.map;
1493         struct annotation *notes = symbol__annotation(sym);
1494         struct disasm_line *dl;
1495         char *tmp;
1496         s64 line_ip, offset = -1;
1497         regmatch_t match[2];
1498
1499         /* /filename:linenr ? Save line number and ignore. */
1500         if (regexec(&file_lineno, parsed_line, 2, match, 0) == 0) {
1501                 *line_nr = atoi(parsed_line + match[1].rm_so);
1502                 *fileloc = strdup(parsed_line);
1503                 return 0;
1504         }
1505
1506         /* Process hex address followed by ':'. */
1507         line_ip = strtoull(parsed_line, &tmp, 16);
1508         if (parsed_line != tmp && tmp[0] == ':' && tmp[1] != '\0') {
1509                 u64 start = map__rip_2objdump(map, sym->start),
1510                     end = map__rip_2objdump(map, sym->end);
1511
1512                 offset = line_ip - start;
1513                 if ((u64)line_ip < start || (u64)line_ip >= end)
1514                         offset = -1;
1515                 else
1516                         parsed_line = tmp + 1;
1517         }
1518
1519         args->offset  = offset;
1520         args->line    = parsed_line;
1521         args->line_nr = *line_nr;
1522         args->fileloc = *fileloc;
1523         args->ms.sym  = sym;
1524
1525         dl = disasm_line__new(args);
1526         (*line_nr)++;
1527
1528         if (dl == NULL)
1529                 return -1;
1530
1531         if (!disasm_line__has_local_offset(dl)) {
1532                 dl->ops.target.offset = dl->ops.target.addr -
1533                                         map__rip_2objdump(map, sym->start);
1534                 dl->ops.target.offset_avail = true;
1535         }
1536
1537         /* kcore has no symbols, so add the call target symbol */
1538         if (dl->ins.ops && ins__is_call(&dl->ins) && !dl->ops.target.sym) {
1539                 struct addr_map_symbol target = {
1540                         .addr = dl->ops.target.addr,
1541                         .ms = { .map = map, },
1542                 };
1543
1544                 if (!maps__find_ams(args->ms.maps, &target) &&
1545                     target.ms.sym->start == target.al_addr)
1546                         dl->ops.target.sym = target.ms.sym;
1547         }
1548
1549         annotation_line__add(&dl->al, &notes->src->source);
1550
1551         return 0;
1552 }
1553
1554 static __attribute__((constructor)) void symbol__init_regexpr(void)
1555 {
1556         regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED);
1557 }
1558
1559 static void delete_last_nop(struct symbol *sym)
1560 {
1561         struct annotation *notes = symbol__annotation(sym);
1562         struct list_head *list = &notes->src->source;
1563         struct disasm_line *dl;
1564
1565         while (!list_empty(list)) {
1566                 dl = list_entry(list->prev, struct disasm_line, al.node);
1567
1568                 if (dl->ins.ops) {
1569                         if (dl->ins.ops != &nop_ops)
1570                                 return;
1571                 } else {
1572                         if (!strstr(dl->al.line, " nop ") &&
1573                             !strstr(dl->al.line, " nopl ") &&
1574                             !strstr(dl->al.line, " nopw "))
1575                                 return;
1576                 }
1577
1578                 list_del_init(&dl->al.node);
1579                 disasm_line__free(dl);
1580         }
1581 }
1582
1583 int symbol__strerror_disassemble(struct map_symbol *ms, int errnum, char *buf, size_t buflen)
1584 {
1585         struct dso *dso = ms->map->dso;
1586
1587         BUG_ON(buflen == 0);
1588
1589         if (errnum >= 0) {
1590                 str_error_r(errnum, buf, buflen);
1591                 return 0;
1592         }
1593
1594         switch (errnum) {
1595         case SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX: {
1596                 char bf[SBUILD_ID_SIZE + 15] = " with build id ";
1597                 char *build_id_msg = NULL;
1598
1599                 if (dso->has_build_id) {
1600                         build_id__sprintf(&dso->bid, bf + 15);
1601                         build_id_msg = bf;
1602                 }
1603                 scnprintf(buf, buflen,
1604                           "No vmlinux file%s\nwas found in the path.\n\n"
1605                           "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n"
1606                           "Please use:\n\n"
1607                           "  perf buildid-cache -vu vmlinux\n\n"
1608                           "or:\n\n"
1609                           "  --vmlinux vmlinux\n", build_id_msg ?: "");
1610         }
1611                 break;
1612         case SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF:
1613                 scnprintf(buf, buflen, "Please link with binutils's libopcode to enable BPF annotation");
1614                 break;
1615         case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP:
1616                 scnprintf(buf, buflen, "Problems with arch specific instruction name regular expressions.");
1617                 break;
1618         case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING:
1619                 scnprintf(buf, buflen, "Problems while parsing the CPUID in the arch specific initialization.");
1620                 break;
1621         case SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE:
1622                 scnprintf(buf, buflen, "Invalid BPF file: %s.", dso->long_name);
1623                 break;
1624         case SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF:
1625                 scnprintf(buf, buflen, "The %s BPF file has no BTF section, compile with -g or use pahole -J.",
1626                           dso->long_name);
1627                 break;
1628         default:
1629                 scnprintf(buf, buflen, "Internal error: Invalid %d error code\n", errnum);
1630                 break;
1631         }
1632
1633         return 0;
1634 }
1635
1636 static int dso__disassemble_filename(struct dso *dso, char *filename, size_t filename_size)
1637 {
1638         char linkname[PATH_MAX];
1639         char *build_id_filename;
1640         char *build_id_path = NULL;
1641         char *pos;
1642         int len;
1643
1644         if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
1645             !dso__is_kcore(dso))
1646                 return SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX;
1647
1648         build_id_filename = dso__build_id_filename(dso, NULL, 0, false);
1649         if (build_id_filename) {
1650                 __symbol__join_symfs(filename, filename_size, build_id_filename);
1651                 free(build_id_filename);
1652         } else {
1653                 if (dso->has_build_id)
1654                         return ENOMEM;
1655                 goto fallback;
1656         }
1657
1658         build_id_path = strdup(filename);
1659         if (!build_id_path)
1660                 return ENOMEM;
1661
1662         /*
1663          * old style build-id cache has name of XX/XXXXXXX.. while
1664          * new style has XX/XXXXXXX../{elf,kallsyms,vdso}.
1665          * extract the build-id part of dirname in the new style only.
1666          */
1667         pos = strrchr(build_id_path, '/');
1668         if (pos && strlen(pos) < SBUILD_ID_SIZE - 2)
1669                 dirname(build_id_path);
1670
1671         if (dso__is_kcore(dso))
1672                 goto fallback;
1673
1674         len = readlink(build_id_path, linkname, sizeof(linkname) - 1);
1675         if (len < 0)
1676                 goto fallback;
1677
1678         linkname[len] = '\0';
1679         if (strstr(linkname, DSO__NAME_KALLSYMS) ||
1680                 access(filename, R_OK)) {
1681 fallback:
1682                 /*
1683                  * If we don't have build-ids or the build-id file isn't in the
1684                  * cache, or is just a kallsyms file, well, lets hope that this
1685                  * DSO is the same as when 'perf record' ran.
1686                  */
1687                 __symbol__join_symfs(filename, filename_size, dso->long_name);
1688         }
1689
1690         free(build_id_path);
1691         return 0;
1692 }
1693
1694 #if defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
1695 #define PACKAGE "perf"
1696 #include <bfd.h>
1697 #include <dis-asm.h>
1698 #include <bpf/bpf.h>
1699 #include <bpf/btf.h>
1700 #include <bpf/libbpf.h>
1701 #include <linux/btf.h>
1702
1703 static int symbol__disassemble_bpf(struct symbol *sym,
1704                                    struct annotate_args *args)
1705 {
1706         struct annotation *notes = symbol__annotation(sym);
1707         struct annotation_options *opts = args->options;
1708         struct bpf_prog_linfo *prog_linfo = NULL;
1709         struct bpf_prog_info_node *info_node;
1710         int len = sym->end - sym->start;
1711         disassembler_ftype disassemble;
1712         struct map *map = args->ms.map;
1713         struct perf_bpil *info_linear;
1714         struct disassemble_info info;
1715         struct dso *dso = map->dso;
1716         int pc = 0, count, sub_id;
1717         struct btf *btf = NULL;
1718         char tpath[PATH_MAX];
1719         size_t buf_size;
1720         int nr_skip = 0;
1721         char *buf;
1722         bfd *bfdf;
1723         int ret;
1724         FILE *s;
1725
1726         if (dso->binary_type != DSO_BINARY_TYPE__BPF_PROG_INFO)
1727                 return SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE;
1728
1729         pr_debug("%s: handling sym %s addr %" PRIx64 " len %" PRIx64 "\n", __func__,
1730                   sym->name, sym->start, sym->end - sym->start);
1731
1732         memset(tpath, 0, sizeof(tpath));
1733         perf_exe(tpath, sizeof(tpath));
1734
1735         bfdf = bfd_openr(tpath, NULL);
1736         assert(bfdf);
1737         assert(bfd_check_format(bfdf, bfd_object));
1738
1739         s = open_memstream(&buf, &buf_size);
1740         if (!s) {
1741                 ret = errno;
1742                 goto out;
1743         }
1744         init_disassemble_info(&info, s,
1745                               (fprintf_ftype) fprintf);
1746
1747         info.arch = bfd_get_arch(bfdf);
1748         info.mach = bfd_get_mach(bfdf);
1749
1750         info_node = perf_env__find_bpf_prog_info(dso->bpf_prog.env,
1751                                                  dso->bpf_prog.id);
1752         if (!info_node) {
1753                 ret = SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF;
1754                 goto out;
1755         }
1756         info_linear = info_node->info_linear;
1757         sub_id = dso->bpf_prog.sub_id;
1758
1759         info.buffer = (void *)(uintptr_t)(info_linear->info.jited_prog_insns);
1760         info.buffer_length = info_linear->info.jited_prog_len;
1761
1762         if (info_linear->info.nr_line_info)
1763                 prog_linfo = bpf_prog_linfo__new(&info_linear->info);
1764
1765         if (info_linear->info.btf_id) {
1766                 struct btf_node *node;
1767
1768                 node = perf_env__find_btf(dso->bpf_prog.env,
1769                                           info_linear->info.btf_id);
1770                 if (node)
1771                         btf = btf__new((__u8 *)(node->data),
1772                                        node->data_size);
1773         }
1774
1775         disassemble_init_for_target(&info);
1776
1777 #ifdef DISASM_FOUR_ARGS_SIGNATURE
1778         disassemble = disassembler(info.arch,
1779                                    bfd_big_endian(bfdf),
1780                                    info.mach,
1781                                    bfdf);
1782 #else
1783         disassemble = disassembler(bfdf);
1784 #endif
1785         assert(disassemble);
1786
1787         fflush(s);
1788         do {
1789                 const struct bpf_line_info *linfo = NULL;
1790                 struct disasm_line *dl;
1791                 size_t prev_buf_size;
1792                 const char *srcline;
1793                 u64 addr;
1794
1795                 addr = pc + ((u64 *)(uintptr_t)(info_linear->info.jited_ksyms))[sub_id];
1796                 count = disassemble(pc, &info);
1797
1798                 if (prog_linfo)
1799                         linfo = bpf_prog_linfo__lfind_addr_func(prog_linfo,
1800                                                                 addr, sub_id,
1801                                                                 nr_skip);
1802
1803                 if (linfo && btf) {
1804                         srcline = btf__name_by_offset(btf, linfo->line_off);
1805                         nr_skip++;
1806                 } else
1807                         srcline = NULL;
1808
1809                 fprintf(s, "\n");
1810                 prev_buf_size = buf_size;
1811                 fflush(s);
1812
1813                 if (!opts->hide_src_code && srcline) {
1814                         args->offset = -1;
1815                         args->line = strdup(srcline);
1816                         args->line_nr = 0;
1817                         args->fileloc = NULL;
1818                         args->ms.sym  = sym;
1819                         dl = disasm_line__new(args);
1820                         if (dl) {
1821                                 annotation_line__add(&dl->al,
1822                                                      &notes->src->source);
1823                         }
1824                 }
1825
1826                 args->offset = pc;
1827                 args->line = buf + prev_buf_size;
1828                 args->line_nr = 0;
1829                 args->fileloc = NULL;
1830                 args->ms.sym  = sym;
1831                 dl = disasm_line__new(args);
1832                 if (dl)
1833                         annotation_line__add(&dl->al, &notes->src->source);
1834
1835                 pc += count;
1836         } while (count > 0 && pc < len);
1837
1838         ret = 0;
1839 out:
1840         free(prog_linfo);
1841         btf__free(btf);
1842         fclose(s);
1843         bfd_close(bfdf);
1844         return ret;
1845 }
1846 #else // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
1847 static int symbol__disassemble_bpf(struct symbol *sym __maybe_unused,
1848                                    struct annotate_args *args __maybe_unused)
1849 {
1850         return SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF;
1851 }
1852 #endif // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
1853
1854 static int
1855 symbol__disassemble_bpf_image(struct symbol *sym,
1856                               struct annotate_args *args)
1857 {
1858         struct annotation *notes = symbol__annotation(sym);
1859         struct disasm_line *dl;
1860
1861         args->offset = -1;
1862         args->line = strdup("to be implemented");
1863         args->line_nr = 0;
1864         args->fileloc = NULL;
1865         dl = disasm_line__new(args);
1866         if (dl)
1867                 annotation_line__add(&dl->al, &notes->src->source);
1868
1869         free(args->line);
1870         return 0;
1871 }
1872
1873 /*
1874  * Possibly create a new version of line with tabs expanded. Returns the
1875  * existing or new line, storage is updated if a new line is allocated. If
1876  * allocation fails then NULL is returned.
1877  */
1878 static char *expand_tabs(char *line, char **storage, size_t *storage_len)
1879 {
1880         size_t i, src, dst, len, new_storage_len, num_tabs;
1881         char *new_line;
1882         size_t line_len = strlen(line);
1883
1884         for (num_tabs = 0, i = 0; i < line_len; i++)
1885                 if (line[i] == '\t')
1886                         num_tabs++;
1887
1888         if (num_tabs == 0)
1889                 return line;
1890
1891         /*
1892          * Space for the line and '\0', less the leading and trailing
1893          * spaces. Each tab may introduce 7 additional spaces.
1894          */
1895         new_storage_len = line_len + 1 + (num_tabs * 7);
1896
1897         new_line = malloc(new_storage_len);
1898         if (new_line == NULL) {
1899                 pr_err("Failure allocating memory for tab expansion\n");
1900                 return NULL;
1901         }
1902
1903         /*
1904          * Copy regions starting at src and expand tabs. If there are two
1905          * adjacent tabs then 'src == i', the memcpy is of size 0 and the spaces
1906          * are inserted.
1907          */
1908         for (i = 0, src = 0, dst = 0; i < line_len && num_tabs; i++) {
1909                 if (line[i] == '\t') {
1910                         len = i - src;
1911                         memcpy(&new_line[dst], &line[src], len);
1912                         dst += len;
1913                         new_line[dst++] = ' ';
1914                         while (dst % 8 != 0)
1915                                 new_line[dst++] = ' ';
1916                         src = i + 1;
1917                         num_tabs--;
1918                 }
1919         }
1920
1921         /* Expand the last region. */
1922         len = line_len - src;
1923         memcpy(&new_line[dst], &line[src], len);
1924         dst += len;
1925         new_line[dst] = '\0';
1926
1927         free(*storage);
1928         *storage = new_line;
1929         *storage_len = new_storage_len;
1930         return new_line;
1931
1932 }
1933
1934 static int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
1935 {
1936         struct annotation_options *opts = args->options;
1937         struct map *map = args->ms.map;
1938         struct dso *dso = map->dso;
1939         char *command;
1940         FILE *file;
1941         char symfs_filename[PATH_MAX];
1942         struct kcore_extract kce;
1943         bool delete_extract = false;
1944         bool decomp = false;
1945         int lineno = 0;
1946         char *fileloc = NULL;
1947         int nline;
1948         char *line;
1949         size_t line_len;
1950         const char *objdump_argv[] = {
1951                 "/bin/sh",
1952                 "-c",
1953                 NULL, /* Will be the objdump command to run. */
1954                 "--",
1955                 NULL, /* Will be the symfs path. */
1956                 NULL,
1957         };
1958         struct child_process objdump_process;
1959         int err = dso__disassemble_filename(dso, symfs_filename, sizeof(symfs_filename));
1960
1961         if (err)
1962                 return err;
1963
1964         pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
1965                  symfs_filename, sym->name, map->unmap_ip(map, sym->start),
1966                  map->unmap_ip(map, sym->end));
1967
1968         pr_debug("annotating [%p] %30s : [%p] %30s\n",
1969                  dso, dso->long_name, sym, sym->name);
1970
1971         if (dso->binary_type == DSO_BINARY_TYPE__BPF_PROG_INFO) {
1972                 return symbol__disassemble_bpf(sym, args);
1973         } else if (dso->binary_type == DSO_BINARY_TYPE__BPF_IMAGE) {
1974                 return symbol__disassemble_bpf_image(sym, args);
1975         } else if (dso__is_kcore(dso)) {
1976                 kce.kcore_filename = symfs_filename;
1977                 kce.addr = map__rip_2objdump(map, sym->start);
1978                 kce.offs = sym->start;
1979                 kce.len = sym->end - sym->start;
1980                 if (!kcore_extract__create(&kce)) {
1981                         delete_extract = true;
1982                         strlcpy(symfs_filename, kce.extract_filename,
1983                                 sizeof(symfs_filename));
1984                 }
1985         } else if (dso__needs_decompress(dso)) {
1986                 char tmp[KMOD_DECOMP_LEN];
1987
1988                 if (dso__decompress_kmodule_path(dso, symfs_filename,
1989                                                  tmp, sizeof(tmp)) < 0)
1990                         return -1;
1991
1992                 decomp = true;
1993                 strcpy(symfs_filename, tmp);
1994         }
1995
1996         err = asprintf(&command,
1997                  "%s %s%s --start-address=0x%016" PRIx64
1998                  " --stop-address=0x%016" PRIx64
1999                  " -l -d %s %s %s %c%s%c %s%s -C \"$1\"",
2000                  opts->objdump_path ?: "objdump",
2001                  opts->disassembler_style ? "-M " : "",
2002                  opts->disassembler_style ?: "",
2003                  map__rip_2objdump(map, sym->start),
2004                  map__rip_2objdump(map, sym->end),
2005                  opts->show_asm_raw ? "" : "--no-show-raw-insn",
2006                  opts->annotate_src ? "-S" : "",
2007                  opts->prefix ? "--prefix " : "",
2008                  opts->prefix ? '"' : ' ',
2009                  opts->prefix ?: "",
2010                  opts->prefix ? '"' : ' ',
2011                  opts->prefix_strip ? "--prefix-strip=" : "",
2012                  opts->prefix_strip ?: "");
2013
2014         if (err < 0) {
2015                 pr_err("Failure allocating memory for the command to run\n");
2016                 goto out_remove_tmp;
2017         }
2018
2019         pr_debug("Executing: %s\n", command);
2020
2021         objdump_argv[2] = command;
2022         objdump_argv[4] = symfs_filename;
2023
2024         /* Create a pipe to read from for stdout */
2025         memset(&objdump_process, 0, sizeof(objdump_process));
2026         objdump_process.argv = objdump_argv;
2027         objdump_process.out = -1;
2028         if (start_command(&objdump_process)) {
2029                 pr_err("Failure starting to run %s\n", command);
2030                 err = -1;
2031                 goto out_free_command;
2032         }
2033
2034         file = fdopen(objdump_process.out, "r");
2035         if (!file) {
2036                 pr_err("Failure creating FILE stream for %s\n", command);
2037                 /*
2038                  * If we were using debug info should retry with
2039                  * original binary.
2040                  */
2041                 err = -1;
2042                 goto out_close_stdout;
2043         }
2044
2045         /* Storage for getline. */
2046         line = NULL;
2047         line_len = 0;
2048
2049         nline = 0;
2050         while (!feof(file)) {
2051                 const char *match;
2052                 char *expanded_line;
2053
2054                 if (getline(&line, &line_len, file) < 0 || !line)
2055                         break;
2056
2057                 /* Skip lines containing "filename:" */
2058                 match = strstr(line, symfs_filename);
2059                 if (match && match[strlen(symfs_filename)] == ':')
2060                         continue;
2061
2062                 expanded_line = strim(line);
2063                 expanded_line = expand_tabs(expanded_line, &line, &line_len);
2064                 if (!expanded_line)
2065                         break;
2066
2067                 /*
2068                  * The source code line number (lineno) needs to be kept in
2069                  * across calls to symbol__parse_objdump_line(), so that it
2070                  * can associate it with the instructions till the next one.
2071                  * See disasm_line__new() and struct disasm_line::line_nr.
2072                  */
2073                 if (symbol__parse_objdump_line(sym, args, expanded_line,
2074                                                &lineno, &fileloc) < 0)
2075                         break;
2076                 nline++;
2077         }
2078         free(line);
2079
2080         err = finish_command(&objdump_process);
2081         if (err)
2082                 pr_err("Error running %s\n", command);
2083
2084         if (nline == 0) {
2085                 err = -1;
2086                 pr_err("No output from %s\n", command);
2087         }
2088
2089         /*
2090          * kallsyms does not have symbol sizes so there may a nop at the end.
2091          * Remove it.
2092          */
2093         if (dso__is_kcore(dso))
2094                 delete_last_nop(sym);
2095
2096         fclose(file);
2097
2098 out_close_stdout:
2099         close(objdump_process.out);
2100
2101 out_free_command:
2102         free(command);
2103
2104 out_remove_tmp:
2105         if (decomp)
2106                 unlink(symfs_filename);
2107
2108         if (delete_extract)
2109                 kcore_extract__delete(&kce);
2110
2111         return err;
2112 }
2113
2114 static void calc_percent(struct sym_hist *sym_hist,
2115                          struct hists *hists,
2116                          struct annotation_data *data,
2117                          s64 offset, s64 end)
2118 {
2119         unsigned int hits = 0;
2120         u64 period = 0;
2121
2122         while (offset < end) {
2123                 hits   += sym_hist->addr[offset].nr_samples;
2124                 period += sym_hist->addr[offset].period;
2125                 ++offset;
2126         }
2127
2128         if (sym_hist->nr_samples) {
2129                 data->he.period     = period;
2130                 data->he.nr_samples = hits;
2131                 data->percent[PERCENT_HITS_LOCAL] = 100.0 * hits / sym_hist->nr_samples;
2132         }
2133
2134         if (hists->stats.nr_non_filtered_samples)
2135                 data->percent[PERCENT_HITS_GLOBAL] = 100.0 * hits / hists->stats.nr_non_filtered_samples;
2136
2137         if (sym_hist->period)
2138                 data->percent[PERCENT_PERIOD_LOCAL] = 100.0 * period / sym_hist->period;
2139
2140         if (hists->stats.total_period)
2141                 data->percent[PERCENT_PERIOD_GLOBAL] = 100.0 * period / hists->stats.total_period;
2142 }
2143
2144 static void annotation__calc_percent(struct annotation *notes,
2145                                      struct evsel *leader, s64 len)
2146 {
2147         struct annotation_line *al, *next;
2148         struct evsel *evsel;
2149
2150         list_for_each_entry(al, &notes->src->source, node) {
2151                 s64 end;
2152                 int i = 0;
2153
2154                 if (al->offset == -1)
2155                         continue;
2156
2157                 next = annotation_line__next(al, &notes->src->source);
2158                 end  = next ? next->offset : len;
2159
2160                 for_each_group_evsel(evsel, leader) {
2161                         struct hists *hists = evsel__hists(evsel);
2162                         struct annotation_data *data;
2163                         struct sym_hist *sym_hist;
2164
2165                         BUG_ON(i >= al->data_nr);
2166
2167                         sym_hist = annotation__histogram(notes, evsel->core.idx);
2168                         data = &al->data[i++];
2169
2170                         calc_percent(sym_hist, hists, data, al->offset, end);
2171                 }
2172         }
2173 }
2174
2175 void symbol__calc_percent(struct symbol *sym, struct evsel *evsel)
2176 {
2177         struct annotation *notes = symbol__annotation(sym);
2178
2179         annotation__calc_percent(notes, evsel, symbol__size(sym));
2180 }
2181
2182 int symbol__annotate(struct map_symbol *ms, struct evsel *evsel,
2183                      struct annotation_options *options, struct arch **parch)
2184 {
2185         struct symbol *sym = ms->sym;
2186         struct annotation *notes = symbol__annotation(sym);
2187         struct annotate_args args = {
2188                 .evsel          = evsel,
2189                 .options        = options,
2190         };
2191         struct perf_env *env = evsel__env(evsel);
2192         const char *arch_name = perf_env__arch(env);
2193         struct arch *arch;
2194         int err;
2195
2196         if (!arch_name)
2197                 return errno;
2198
2199         args.arch = arch = arch__find(arch_name);
2200         if (arch == NULL) {
2201                 pr_err("%s: unsupported arch %s\n", __func__, arch_name);
2202                 return ENOTSUP;
2203         }
2204
2205         if (parch)
2206                 *parch = arch;
2207
2208         if (arch->init) {
2209                 err = arch->init(arch, env ? env->cpuid : NULL);
2210                 if (err) {
2211                         pr_err("%s: failed to initialize %s arch priv area\n", __func__, arch->name);
2212                         return err;
2213                 }
2214         }
2215
2216         args.ms = *ms;
2217         notes->start = map__rip_2objdump(ms->map, sym->start);
2218
2219         return symbol__disassemble(sym, &args);
2220 }
2221
2222 static void insert_source_line(struct rb_root *root, struct annotation_line *al,
2223                                struct annotation_options *opts)
2224 {
2225         struct annotation_line *iter;
2226         struct rb_node **p = &root->rb_node;
2227         struct rb_node *parent = NULL;
2228         int i, ret;
2229
2230         while (*p != NULL) {
2231                 parent = *p;
2232                 iter = rb_entry(parent, struct annotation_line, rb_node);
2233
2234                 ret = strcmp(iter->path, al->path);
2235                 if (ret == 0) {
2236                         for (i = 0; i < al->data_nr; i++) {
2237                                 iter->data[i].percent_sum += annotation_data__percent(&al->data[i],
2238                                                                                       opts->percent_type);
2239                         }
2240                         return;
2241                 }
2242
2243                 if (ret < 0)
2244                         p = &(*p)->rb_left;
2245                 else
2246                         p = &(*p)->rb_right;
2247         }
2248
2249         for (i = 0; i < al->data_nr; i++) {
2250                 al->data[i].percent_sum = annotation_data__percent(&al->data[i],
2251                                                                    opts->percent_type);
2252         }
2253
2254         rb_link_node(&al->rb_node, parent, p);
2255         rb_insert_color(&al->rb_node, root);
2256 }
2257
2258 static int cmp_source_line(struct annotation_line *a, struct annotation_line *b)
2259 {
2260         int i;
2261
2262         for (i = 0; i < a->data_nr; i++) {
2263                 if (a->data[i].percent_sum == b->data[i].percent_sum)
2264                         continue;
2265                 return a->data[i].percent_sum > b->data[i].percent_sum;
2266         }
2267
2268         return 0;
2269 }
2270
2271 static void __resort_source_line(struct rb_root *root, struct annotation_line *al)
2272 {
2273         struct annotation_line *iter;
2274         struct rb_node **p = &root->rb_node;
2275         struct rb_node *parent = NULL;
2276
2277         while (*p != NULL) {
2278                 parent = *p;
2279                 iter = rb_entry(parent, struct annotation_line, rb_node);
2280
2281                 if (cmp_source_line(al, iter))
2282                         p = &(*p)->rb_left;
2283                 else
2284                         p = &(*p)->rb_right;
2285         }
2286
2287         rb_link_node(&al->rb_node, parent, p);
2288         rb_insert_color(&al->rb_node, root);
2289 }
2290
2291 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
2292 {
2293         struct annotation_line *al;
2294         struct rb_node *node;
2295
2296         node = rb_first(src_root);
2297         while (node) {
2298                 struct rb_node *next;
2299
2300                 al = rb_entry(node, struct annotation_line, rb_node);
2301                 next = rb_next(node);
2302                 rb_erase(node, src_root);
2303
2304                 __resort_source_line(dest_root, al);
2305                 node = next;
2306         }
2307 }
2308
2309 static void print_summary(struct rb_root *root, const char *filename)
2310 {
2311         struct annotation_line *al;
2312         struct rb_node *node;
2313
2314         printf("\nSorted summary for file %s\n", filename);
2315         printf("----------------------------------------------\n\n");
2316
2317         if (RB_EMPTY_ROOT(root)) {
2318                 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
2319                 return;
2320         }
2321
2322         node = rb_first(root);
2323         while (node) {
2324                 double percent, percent_max = 0.0;
2325                 const char *color;
2326                 char *path;
2327                 int i;
2328
2329                 al = rb_entry(node, struct annotation_line, rb_node);
2330                 for (i = 0; i < al->data_nr; i++) {
2331                         percent = al->data[i].percent_sum;
2332                         color = get_percent_color(percent);
2333                         color_fprintf(stdout, color, " %7.2f", percent);
2334
2335                         if (percent > percent_max)
2336                                 percent_max = percent;
2337                 }
2338
2339                 path = al->path;
2340                 color = get_percent_color(percent_max);
2341                 color_fprintf(stdout, color, " %s\n", path);
2342
2343                 node = rb_next(node);
2344         }
2345 }
2346
2347 static void symbol__annotate_hits(struct symbol *sym, struct evsel *evsel)
2348 {
2349         struct annotation *notes = symbol__annotation(sym);
2350         struct sym_hist *h = annotation__histogram(notes, evsel->core.idx);
2351         u64 len = symbol__size(sym), offset;
2352
2353         for (offset = 0; offset < len; ++offset)
2354                 if (h->addr[offset].nr_samples != 0)
2355                         printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
2356                                sym->start + offset, h->addr[offset].nr_samples);
2357         printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->nr_samples", h->nr_samples);
2358 }
2359
2360 static int annotated_source__addr_fmt_width(struct list_head *lines, u64 start)
2361 {
2362         char bf[32];
2363         struct annotation_line *line;
2364
2365         list_for_each_entry_reverse(line, lines, node) {
2366                 if (line->offset != -1)
2367                         return scnprintf(bf, sizeof(bf), "%" PRIx64, start + line->offset);
2368         }
2369
2370         return 0;
2371 }
2372
2373 int symbol__annotate_printf(struct map_symbol *ms, struct evsel *evsel,
2374                             struct annotation_options *opts)
2375 {
2376         struct map *map = ms->map;
2377         struct symbol *sym = ms->sym;
2378         struct dso *dso = map->dso;
2379         char *filename;
2380         const char *d_filename;
2381         const char *evsel_name = evsel__name(evsel);
2382         struct annotation *notes = symbol__annotation(sym);
2383         struct sym_hist *h = annotation__histogram(notes, evsel->core.idx);
2384         struct annotation_line *pos, *queue = NULL;
2385         u64 start = map__rip_2objdump(map, sym->start);
2386         int printed = 2, queue_len = 0, addr_fmt_width;
2387         int more = 0;
2388         bool context = opts->context;
2389         u64 len;
2390         int width = symbol_conf.show_total_period ? 12 : 8;
2391         int graph_dotted_len;
2392         char buf[512];
2393
2394         filename = strdup(dso->long_name);
2395         if (!filename)
2396                 return -ENOMEM;
2397
2398         if (opts->full_path)
2399                 d_filename = filename;
2400         else
2401                 d_filename = basename(filename);
2402
2403         len = symbol__size(sym);
2404
2405         if (evsel__is_group_event(evsel)) {
2406                 width *= evsel->core.nr_members;
2407                 evsel__group_desc(evsel, buf, sizeof(buf));
2408                 evsel_name = buf;
2409         }
2410
2411         graph_dotted_len = printf(" %-*.*s|     Source code & Disassembly of %s for %s (%" PRIu64 " samples, "
2412                                   "percent: %s)\n",
2413                                   width, width, symbol_conf.show_total_period ? "Period" :
2414                                   symbol_conf.show_nr_samples ? "Samples" : "Percent",
2415                                   d_filename, evsel_name, h->nr_samples,
2416                                   percent_type_str(opts->percent_type));
2417
2418         printf("%-*.*s----\n",
2419                graph_dotted_len, graph_dotted_len, graph_dotted_line);
2420
2421         if (verbose > 0)
2422                 symbol__annotate_hits(sym, evsel);
2423
2424         addr_fmt_width = annotated_source__addr_fmt_width(&notes->src->source, start);
2425
2426         list_for_each_entry(pos, &notes->src->source, node) {
2427                 int err;
2428
2429                 if (context && queue == NULL) {
2430                         queue = pos;
2431                         queue_len = 0;
2432                 }
2433
2434                 err = annotation_line__print(pos, sym, start, evsel, len,
2435                                              opts->min_pcnt, printed, opts->max_lines,
2436                                              queue, addr_fmt_width, opts->percent_type);
2437
2438                 switch (err) {
2439                 case 0:
2440                         ++printed;
2441                         if (context) {
2442                                 printed += queue_len;
2443                                 queue = NULL;
2444                                 queue_len = 0;
2445                         }
2446                         break;
2447                 case 1:
2448                         /* filtered by max_lines */
2449                         ++more;
2450                         break;
2451                 case -1:
2452                 default:
2453                         /*
2454                          * Filtered by min_pcnt or non IP lines when
2455                          * context != 0
2456                          */
2457                         if (!context)
2458                                 break;
2459                         if (queue_len == context)
2460                                 queue = list_entry(queue->node.next, typeof(*queue), node);
2461                         else
2462                                 ++queue_len;
2463                         break;
2464                 }
2465         }
2466
2467         free(filename);
2468
2469         return more;
2470 }
2471
2472 static void FILE__set_percent_color(void *fp __maybe_unused,
2473                                     double percent __maybe_unused,
2474                                     bool current __maybe_unused)
2475 {
2476 }
2477
2478 static int FILE__set_jumps_percent_color(void *fp __maybe_unused,
2479                                          int nr __maybe_unused, bool current __maybe_unused)
2480 {
2481         return 0;
2482 }
2483
2484 static int FILE__set_color(void *fp __maybe_unused, int color __maybe_unused)
2485 {
2486         return 0;
2487 }
2488
2489 static void FILE__printf(void *fp, const char *fmt, ...)
2490 {
2491         va_list args;
2492
2493         va_start(args, fmt);
2494         vfprintf(fp, fmt, args);
2495         va_end(args);
2496 }
2497
2498 static void FILE__write_graph(void *fp, int graph)
2499 {
2500         const char *s;
2501         switch (graph) {
2502
2503         case DARROW_CHAR: s = "↓"; break;
2504         case UARROW_CHAR: s = "↑"; break;
2505         case LARROW_CHAR: s = "←"; break;
2506         case RARROW_CHAR: s = "→"; break;
2507         default:                s = "?"; break;
2508         }
2509
2510         fputs(s, fp);
2511 }
2512
2513 static int symbol__annotate_fprintf2(struct symbol *sym, FILE *fp,
2514                                      struct annotation_options *opts)
2515 {
2516         struct annotation *notes = symbol__annotation(sym);
2517         struct annotation_write_ops wops = {
2518                 .first_line              = true,
2519                 .obj                     = fp,
2520                 .set_color               = FILE__set_color,
2521                 .set_percent_color       = FILE__set_percent_color,
2522                 .set_jumps_percent_color = FILE__set_jumps_percent_color,
2523                 .printf                  = FILE__printf,
2524                 .write_graph             = FILE__write_graph,
2525         };
2526         struct annotation_line *al;
2527
2528         list_for_each_entry(al, &notes->src->source, node) {
2529                 if (annotation_line__filter(al, notes))
2530                         continue;
2531                 annotation_line__write(al, notes, &wops, opts);
2532                 fputc('\n', fp);
2533                 wops.first_line = false;
2534         }
2535
2536         return 0;
2537 }
2538
2539 int map_symbol__annotation_dump(struct map_symbol *ms, struct evsel *evsel,
2540                                 struct annotation_options *opts)
2541 {
2542         const char *ev_name = evsel__name(evsel);
2543         char buf[1024];
2544         char *filename;
2545         int err = -1;
2546         FILE *fp;
2547
2548         if (asprintf(&filename, "%s.annotation", ms->sym->name) < 0)
2549                 return -1;
2550
2551         fp = fopen(filename, "w");
2552         if (fp == NULL)
2553                 goto out_free_filename;
2554
2555         if (evsel__is_group_event(evsel)) {
2556                 evsel__group_desc(evsel, buf, sizeof(buf));
2557                 ev_name = buf;
2558         }
2559
2560         fprintf(fp, "%s() %s\nEvent: %s\n\n",
2561                 ms->sym->name, ms->map->dso->long_name, ev_name);
2562         symbol__annotate_fprintf2(ms->sym, fp, opts);
2563
2564         fclose(fp);
2565         err = 0;
2566 out_free_filename:
2567         free(filename);
2568         return err;
2569 }
2570
2571 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
2572 {
2573         struct annotation *notes = symbol__annotation(sym);
2574         struct sym_hist *h = annotation__histogram(notes, evidx);
2575
2576         memset(h, 0, notes->src->sizeof_sym_hist);
2577 }
2578
2579 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
2580 {
2581         struct annotation *notes = symbol__annotation(sym);
2582         struct sym_hist *h = annotation__histogram(notes, evidx);
2583         int len = symbol__size(sym), offset;
2584
2585         h->nr_samples = 0;
2586         for (offset = 0; offset < len; ++offset) {
2587                 h->addr[offset].nr_samples = h->addr[offset].nr_samples * 7 / 8;
2588                 h->nr_samples += h->addr[offset].nr_samples;
2589         }
2590 }
2591
2592 void annotated_source__purge(struct annotated_source *as)
2593 {
2594         struct annotation_line *al, *n;
2595
2596         list_for_each_entry_safe(al, n, &as->source, node) {
2597                 list_del_init(&al->node);
2598                 disasm_line__free(disasm_line(al));
2599         }
2600 }
2601
2602 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
2603 {
2604         size_t printed;
2605
2606         if (dl->al.offset == -1)
2607                 return fprintf(fp, "%s\n", dl->al.line);
2608
2609         printed = fprintf(fp, "%#" PRIx64 " %s", dl->al.offset, dl->ins.name);
2610
2611         if (dl->ops.raw[0] != '\0') {
2612                 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
2613                                    dl->ops.raw);
2614         }
2615
2616         return printed + fprintf(fp, "\n");
2617 }
2618
2619 size_t disasm__fprintf(struct list_head *head, FILE *fp)
2620 {
2621         struct disasm_line *pos;
2622         size_t printed = 0;
2623
2624         list_for_each_entry(pos, head, al.node)
2625                 printed += disasm_line__fprintf(pos, fp);
2626
2627         return printed;
2628 }
2629
2630 bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym)
2631 {
2632         if (!dl || !dl->ins.ops || !ins__is_jump(&dl->ins) ||
2633             !disasm_line__has_local_offset(dl) || dl->ops.target.offset < 0 ||
2634             dl->ops.target.offset >= (s64)symbol__size(sym))
2635                 return false;
2636
2637         return true;
2638 }
2639
2640 void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym)
2641 {
2642         u64 offset, size = symbol__size(sym);
2643
2644         /* PLT symbols contain external offsets */
2645         if (strstr(sym->name, "@plt"))
2646                 return;
2647
2648         for (offset = 0; offset < size; ++offset) {
2649                 struct annotation_line *al = notes->offsets[offset];
2650                 struct disasm_line *dl;
2651
2652                 dl = disasm_line(al);
2653
2654                 if (!disasm_line__is_valid_local_jump(dl, sym))
2655                         continue;
2656
2657                 al = notes->offsets[dl->ops.target.offset];
2658
2659                 /*
2660                  * FIXME: Oops, no jump target? Buggy disassembler? Or do we
2661                  * have to adjust to the previous offset?
2662                  */
2663                 if (al == NULL)
2664                         continue;
2665
2666                 if (++al->jump_sources > notes->max_jump_sources)
2667                         notes->max_jump_sources = al->jump_sources;
2668         }
2669 }
2670
2671 void annotation__set_offsets(struct annotation *notes, s64 size)
2672 {
2673         struct annotation_line *al;
2674
2675         notes->max_line_len = 0;
2676         notes->nr_entries = 0;
2677         notes->nr_asm_entries = 0;
2678
2679         list_for_each_entry(al, &notes->src->source, node) {
2680                 size_t line_len = strlen(al->line);
2681
2682                 if (notes->max_line_len < line_len)
2683                         notes->max_line_len = line_len;
2684                 al->idx = notes->nr_entries++;
2685                 if (al->offset != -1) {
2686                         al->idx_asm = notes->nr_asm_entries++;
2687                         /*
2688                          * FIXME: short term bandaid to cope with assembly
2689                          * routines that comes with labels in the same column
2690                          * as the address in objdump, sigh.
2691                          *
2692                          * E.g. copy_user_generic_unrolled
2693                          */
2694                         if (al->offset < size)
2695                                 notes->offsets[al->offset] = al;
2696                 } else
2697                         al->idx_asm = -1;
2698         }
2699 }
2700
2701 static inline int width_jumps(int n)
2702 {
2703         if (n >= 100)
2704                 return 5;
2705         if (n / 10)
2706                 return 2;
2707         return 1;
2708 }
2709
2710 static int annotation__max_ins_name(struct annotation *notes)
2711 {
2712         int max_name = 0, len;
2713         struct annotation_line *al;
2714
2715         list_for_each_entry(al, &notes->src->source, node) {
2716                 if (al->offset == -1)
2717                         continue;
2718
2719                 len = strlen(disasm_line(al)->ins.name);
2720                 if (max_name < len)
2721                         max_name = len;
2722         }
2723
2724         return max_name;
2725 }
2726
2727 void annotation__init_column_widths(struct annotation *notes, struct symbol *sym)
2728 {
2729         notes->widths.addr = notes->widths.target =
2730                 notes->widths.min_addr = hex_width(symbol__size(sym));
2731         notes->widths.max_addr = hex_width(sym->end);
2732         notes->widths.jumps = width_jumps(notes->max_jump_sources);
2733         notes->widths.max_ins_name = annotation__max_ins_name(notes);
2734 }
2735
2736 void annotation__update_column_widths(struct annotation *notes)
2737 {
2738         if (notes->options->use_offset)
2739                 notes->widths.target = notes->widths.min_addr;
2740         else
2741                 notes->widths.target = notes->widths.max_addr;
2742
2743         notes->widths.addr = notes->widths.target;
2744
2745         if (notes->options->show_nr_jumps)
2746                 notes->widths.addr += notes->widths.jumps + 1;
2747 }
2748
2749 static void annotation__calc_lines(struct annotation *notes, struct map *map,
2750                                    struct rb_root *root,
2751                                    struct annotation_options *opts)
2752 {
2753         struct annotation_line *al;
2754         struct rb_root tmp_root = RB_ROOT;
2755
2756         list_for_each_entry(al, &notes->src->source, node) {
2757                 double percent_max = 0.0;
2758                 int i;
2759
2760                 for (i = 0; i < al->data_nr; i++) {
2761                         double percent;
2762
2763                         percent = annotation_data__percent(&al->data[i],
2764                                                            opts->percent_type);
2765
2766                         if (percent > percent_max)
2767                                 percent_max = percent;
2768                 }
2769
2770                 if (percent_max <= 0.5)
2771                         continue;
2772
2773                 al->path = get_srcline(map->dso, notes->start + al->offset, NULL,
2774                                        false, true, notes->start + al->offset);
2775                 insert_source_line(&tmp_root, al, opts);
2776         }
2777
2778         resort_source_line(root, &tmp_root);
2779 }
2780
2781 static void symbol__calc_lines(struct map_symbol *ms, struct rb_root *root,
2782                                struct annotation_options *opts)
2783 {
2784         struct annotation *notes = symbol__annotation(ms->sym);
2785
2786         annotation__calc_lines(notes, ms->map, root, opts);
2787 }
2788
2789 int symbol__tty_annotate2(struct map_symbol *ms, struct evsel *evsel,
2790                           struct annotation_options *opts)
2791 {
2792         struct dso *dso = ms->map->dso;
2793         struct symbol *sym = ms->sym;
2794         struct rb_root source_line = RB_ROOT;
2795         struct hists *hists = evsel__hists(evsel);
2796         char buf[1024];
2797         int err;
2798
2799         err = symbol__annotate2(ms, evsel, opts, NULL);
2800         if (err) {
2801                 char msg[BUFSIZ];
2802
2803                 dso->annotate_warned = true;
2804                 symbol__strerror_disassemble(ms, err, msg, sizeof(msg));
2805                 ui__error("Couldn't annotate %s:\n%s", sym->name, msg);
2806                 return -1;
2807         }
2808
2809         if (opts->print_lines) {
2810                 srcline_full_filename = opts->full_path;
2811                 symbol__calc_lines(ms, &source_line, opts);
2812                 print_summary(&source_line, dso->long_name);
2813         }
2814
2815         hists__scnprintf_title(hists, buf, sizeof(buf));
2816         fprintf(stdout, "%s, [percent: %s]\n%s() %s\n",
2817                 buf, percent_type_str(opts->percent_type), sym->name, dso->long_name);
2818         symbol__annotate_fprintf2(sym, stdout, opts);
2819
2820         annotated_source__purge(symbol__annotation(sym)->src);
2821
2822         return 0;
2823 }
2824
2825 int symbol__tty_annotate(struct map_symbol *ms, struct evsel *evsel,
2826                          struct annotation_options *opts)
2827 {
2828         struct dso *dso = ms->map->dso;
2829         struct symbol *sym = ms->sym;
2830         struct rb_root source_line = RB_ROOT;
2831         int err;
2832
2833         err = symbol__annotate(ms, evsel, opts, NULL);
2834         if (err) {
2835                 char msg[BUFSIZ];
2836
2837                 dso->annotate_warned = true;
2838                 symbol__strerror_disassemble(ms, err, msg, sizeof(msg));
2839                 ui__error("Couldn't annotate %s:\n%s", sym->name, msg);
2840                 return -1;
2841         }
2842
2843         symbol__calc_percent(sym, evsel);
2844
2845         if (opts->print_lines) {
2846                 srcline_full_filename = opts->full_path;
2847                 symbol__calc_lines(ms, &source_line, opts);
2848                 print_summary(&source_line, dso->long_name);
2849         }
2850
2851         symbol__annotate_printf(ms, evsel, opts);
2852
2853         annotated_source__purge(symbol__annotation(sym)->src);
2854
2855         return 0;
2856 }
2857
2858 bool ui__has_annotation(void)
2859 {
2860         return use_browser == 1 && perf_hpp_list.sym;
2861 }
2862
2863
2864 static double annotation_line__max_percent(struct annotation_line *al,
2865                                            struct annotation *notes,
2866                                            unsigned int percent_type)
2867 {
2868         double percent_max = 0.0;
2869         int i;
2870
2871         for (i = 0; i < notes->nr_events; i++) {
2872                 double percent;
2873
2874                 percent = annotation_data__percent(&al->data[i],
2875                                                    percent_type);
2876
2877                 if (percent > percent_max)
2878                         percent_max = percent;
2879         }
2880
2881         return percent_max;
2882 }
2883
2884 static void disasm_line__write(struct disasm_line *dl, struct annotation *notes,
2885                                void *obj, char *bf, size_t size,
2886                                void (*obj__printf)(void *obj, const char *fmt, ...),
2887                                void (*obj__write_graph)(void *obj, int graph))
2888 {
2889         if (dl->ins.ops && dl->ins.ops->scnprintf) {
2890                 if (ins__is_jump(&dl->ins)) {
2891                         bool fwd;
2892
2893                         if (dl->ops.target.outside)
2894                                 goto call_like;
2895                         fwd = dl->ops.target.offset > dl->al.offset;
2896                         obj__write_graph(obj, fwd ? DARROW_CHAR : UARROW_CHAR);
2897                         obj__printf(obj, " ");
2898                 } else if (ins__is_call(&dl->ins)) {
2899 call_like:
2900                         obj__write_graph(obj, RARROW_CHAR);
2901                         obj__printf(obj, " ");
2902                 } else if (ins__is_ret(&dl->ins)) {
2903                         obj__write_graph(obj, LARROW_CHAR);
2904                         obj__printf(obj, " ");
2905                 } else {
2906                         obj__printf(obj, "  ");
2907                 }
2908         } else {
2909                 obj__printf(obj, "  ");
2910         }
2911
2912         disasm_line__scnprintf(dl, bf, size, !notes->options->use_offset, notes->widths.max_ins_name);
2913 }
2914
2915 static void ipc_coverage_string(char *bf, int size, struct annotation *notes)
2916 {
2917         double ipc = 0.0, coverage = 0.0;
2918
2919         if (notes->hit_cycles)
2920                 ipc = notes->hit_insn / ((double)notes->hit_cycles);
2921
2922         if (notes->total_insn) {
2923                 coverage = notes->cover_insn * 100.0 /
2924                         ((double)notes->total_insn);
2925         }
2926
2927         scnprintf(bf, size, "(Average IPC: %.2f, IPC Coverage: %.1f%%)",
2928                   ipc, coverage);
2929 }
2930
2931 static void __annotation_line__write(struct annotation_line *al, struct annotation *notes,
2932                                      bool first_line, bool current_entry, bool change_color, int width,
2933                                      void *obj, unsigned int percent_type,
2934                                      int  (*obj__set_color)(void *obj, int color),
2935                                      void (*obj__set_percent_color)(void *obj, double percent, bool current),
2936                                      int  (*obj__set_jumps_percent_color)(void *obj, int nr, bool current),
2937                                      void (*obj__printf)(void *obj, const char *fmt, ...),
2938                                      void (*obj__write_graph)(void *obj, int graph))
2939
2940 {
2941         double percent_max = annotation_line__max_percent(al, notes, percent_type);
2942         int pcnt_width = annotation__pcnt_width(notes),
2943             cycles_width = annotation__cycles_width(notes);
2944         bool show_title = false;
2945         char bf[256];
2946         int printed;
2947
2948         if (first_line && (al->offset == -1 || percent_max == 0.0)) {
2949                 if (notes->have_cycles) {
2950                         if (al->ipc == 0.0 && al->cycles == 0)
2951                                 show_title = true;
2952                 } else
2953                         show_title = true;
2954         }
2955
2956         if (al->offset != -1 && percent_max != 0.0) {
2957                 int i;
2958
2959                 for (i = 0; i < notes->nr_events; i++) {
2960                         double percent;
2961
2962                         percent = annotation_data__percent(&al->data[i], percent_type);
2963
2964                         obj__set_percent_color(obj, percent, current_entry);
2965                         if (symbol_conf.show_total_period) {
2966                                 obj__printf(obj, "%11" PRIu64 " ", al->data[i].he.period);
2967                         } else if (symbol_conf.show_nr_samples) {
2968                                 obj__printf(obj, "%6" PRIu64 " ",
2969                                                    al->data[i].he.nr_samples);
2970                         } else {
2971                                 obj__printf(obj, "%6.2f ", percent);
2972                         }
2973                 }
2974         } else {
2975                 obj__set_percent_color(obj, 0, current_entry);
2976
2977                 if (!show_title)
2978                         obj__printf(obj, "%-*s", pcnt_width, " ");
2979                 else {
2980                         obj__printf(obj, "%-*s", pcnt_width,
2981                                            symbol_conf.show_total_period ? "Period" :
2982                                            symbol_conf.show_nr_samples ? "Samples" : "Percent");
2983                 }
2984         }
2985
2986         if (notes->have_cycles) {
2987                 if (al->ipc)
2988                         obj__printf(obj, "%*.2f ", ANNOTATION__IPC_WIDTH - 1, al->ipc);
2989                 else if (!show_title)
2990                         obj__printf(obj, "%*s", ANNOTATION__IPC_WIDTH, " ");
2991                 else
2992                         obj__printf(obj, "%*s ", ANNOTATION__IPC_WIDTH - 1, "IPC");
2993
2994                 if (!notes->options->show_minmax_cycle) {
2995                         if (al->cycles)
2996                                 obj__printf(obj, "%*" PRIu64 " ",
2997                                            ANNOTATION__CYCLES_WIDTH - 1, al->cycles);
2998                         else if (!show_title)
2999                                 obj__printf(obj, "%*s",
3000                                             ANNOTATION__CYCLES_WIDTH, " ");
3001                         else
3002                                 obj__printf(obj, "%*s ",
3003                                             ANNOTATION__CYCLES_WIDTH - 1,
3004                                             "Cycle");
3005                 } else {
3006                         if (al->cycles) {
3007                                 char str[32];
3008
3009                                 scnprintf(str, sizeof(str),
3010                                         "%" PRIu64 "(%" PRIu64 "/%" PRIu64 ")",
3011                                         al->cycles, al->cycles_min,
3012                                         al->cycles_max);
3013
3014                                 obj__printf(obj, "%*s ",
3015                                             ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
3016                                             str);
3017                         } else if (!show_title)
3018                                 obj__printf(obj, "%*s",
3019                                             ANNOTATION__MINMAX_CYCLES_WIDTH,
3020                                             " ");
3021                         else
3022                                 obj__printf(obj, "%*s ",
3023                                             ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
3024                                             "Cycle(min/max)");
3025                 }
3026
3027                 if (show_title && !*al->line) {
3028                         ipc_coverage_string(bf, sizeof(bf), notes);
3029                         obj__printf(obj, "%*s", ANNOTATION__AVG_IPC_WIDTH, bf);
3030                 }
3031         }
3032
3033         obj__printf(obj, " ");
3034
3035         if (!*al->line)
3036                 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width, " ");
3037         else if (al->offset == -1) {
3038                 if (al->line_nr && notes->options->show_linenr)
3039                         printed = scnprintf(bf, sizeof(bf), "%-*d ", notes->widths.addr + 1, al->line_nr);
3040                 else
3041                         printed = scnprintf(bf, sizeof(bf), "%-*s  ", notes->widths.addr, " ");
3042                 obj__printf(obj, bf);
3043                 obj__printf(obj, "%-*s", width - printed - pcnt_width - cycles_width + 1, al->line);
3044         } else {
3045                 u64 addr = al->offset;
3046                 int color = -1;
3047
3048                 if (!notes->options->use_offset)
3049                         addr += notes->start;
3050
3051                 if (!notes->options->use_offset) {
3052                         printed = scnprintf(bf, sizeof(bf), "%" PRIx64 ": ", addr);
3053                 } else {
3054                         if (al->jump_sources &&
3055                             notes->options->offset_level >= ANNOTATION__OFFSET_JUMP_TARGETS) {
3056                                 if (notes->options->show_nr_jumps) {
3057                                         int prev;
3058                                         printed = scnprintf(bf, sizeof(bf), "%*d ",
3059                                                             notes->widths.jumps,
3060                                                             al->jump_sources);
3061                                         prev = obj__set_jumps_percent_color(obj, al->jump_sources,
3062                                                                             current_entry);
3063                                         obj__printf(obj, bf);
3064                                         obj__set_color(obj, prev);
3065                                 }
3066 print_addr:
3067                                 printed = scnprintf(bf, sizeof(bf), "%*" PRIx64 ": ",
3068                                                     notes->widths.target, addr);
3069                         } else if (ins__is_call(&disasm_line(al)->ins) &&
3070                                    notes->options->offset_level >= ANNOTATION__OFFSET_CALL) {
3071                                 goto print_addr;
3072                         } else if (notes->options->offset_level == ANNOTATION__MAX_OFFSET_LEVEL) {
3073                                 goto print_addr;
3074                         } else {
3075                                 printed = scnprintf(bf, sizeof(bf), "%-*s  ",
3076                                                     notes->widths.addr, " ");
3077                         }
3078                 }
3079
3080                 if (change_color)
3081                         color = obj__set_color(obj, HE_COLORSET_ADDR);
3082                 obj__printf(obj, bf);
3083                 if (change_color)
3084                         obj__set_color(obj, color);
3085
3086                 disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf), obj__printf, obj__write_graph);
3087
3088                 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width - 3 - printed, bf);
3089         }
3090
3091 }
3092
3093 void annotation_line__write(struct annotation_line *al, struct annotation *notes,
3094                             struct annotation_write_ops *wops,
3095                             struct annotation_options *opts)
3096 {
3097         __annotation_line__write(al, notes, wops->first_line, wops->current_entry,
3098                                  wops->change_color, wops->width, wops->obj,
3099                                  opts->percent_type,
3100                                  wops->set_color, wops->set_percent_color,
3101                                  wops->set_jumps_percent_color, wops->printf,
3102                                  wops->write_graph);
3103 }
3104
3105 int symbol__annotate2(struct map_symbol *ms, struct evsel *evsel,
3106                       struct annotation_options *options, struct arch **parch)
3107 {
3108         struct symbol *sym = ms->sym;
3109         struct annotation *notes = symbol__annotation(sym);
3110         size_t size = symbol__size(sym);
3111         int nr_pcnt = 1, err;
3112
3113         notes->offsets = zalloc(size * sizeof(struct annotation_line *));
3114         if (notes->offsets == NULL)
3115                 return ENOMEM;
3116
3117         if (evsel__is_group_event(evsel))
3118                 nr_pcnt = evsel->core.nr_members;
3119
3120         err = symbol__annotate(ms, evsel, options, parch);
3121         if (err)
3122                 goto out_free_offsets;
3123
3124         notes->options = options;
3125
3126         symbol__calc_percent(sym, evsel);
3127
3128         annotation__set_offsets(notes, size);
3129         annotation__mark_jump_targets(notes, sym);
3130         annotation__compute_ipc(notes, size);
3131         annotation__init_column_widths(notes, sym);
3132         notes->nr_events = nr_pcnt;
3133
3134         annotation__update_column_widths(notes);
3135         sym->annotate2 = 1;
3136
3137         return 0;
3138
3139 out_free_offsets:
3140         zfree(&notes->offsets);
3141         return err;
3142 }
3143
3144 static int annotation__config(const char *var, const char *value, void *data)
3145 {
3146         struct annotation_options *opt = data;
3147
3148         if (!strstarts(var, "annotate."))
3149                 return 0;
3150
3151         if (!strcmp(var, "annotate.offset_level")) {
3152                 perf_config_u8(&opt->offset_level, "offset_level", value);
3153
3154                 if (opt->offset_level > ANNOTATION__MAX_OFFSET_LEVEL)
3155                         opt->offset_level = ANNOTATION__MAX_OFFSET_LEVEL;
3156                 else if (opt->offset_level < ANNOTATION__MIN_OFFSET_LEVEL)
3157                         opt->offset_level = ANNOTATION__MIN_OFFSET_LEVEL;
3158         } else if (!strcmp(var, "annotate.hide_src_code")) {
3159                 opt->hide_src_code = perf_config_bool("hide_src_code", value);
3160         } else if (!strcmp(var, "annotate.jump_arrows")) {
3161                 opt->jump_arrows = perf_config_bool("jump_arrows", value);
3162         } else if (!strcmp(var, "annotate.show_linenr")) {
3163                 opt->show_linenr = perf_config_bool("show_linenr", value);
3164         } else if (!strcmp(var, "annotate.show_nr_jumps")) {
3165                 opt->show_nr_jumps = perf_config_bool("show_nr_jumps", value);
3166         } else if (!strcmp(var, "annotate.show_nr_samples")) {
3167                 symbol_conf.show_nr_samples = perf_config_bool("show_nr_samples",
3168                                                                 value);
3169         } else if (!strcmp(var, "annotate.show_total_period")) {
3170                 symbol_conf.show_total_period = perf_config_bool("show_total_period",
3171                                                                 value);
3172         } else if (!strcmp(var, "annotate.use_offset")) {
3173                 opt->use_offset = perf_config_bool("use_offset", value);
3174         } else if (!strcmp(var, "annotate.disassembler_style")) {
3175                 opt->disassembler_style = value;
3176         } else if (!strcmp(var, "annotate.demangle")) {
3177                 symbol_conf.demangle = perf_config_bool("demangle", value);
3178         } else if (!strcmp(var, "annotate.demangle_kernel")) {
3179                 symbol_conf.demangle_kernel = perf_config_bool("demangle_kernel", value);
3180         } else {
3181                 pr_debug("%s variable unknown, ignoring...", var);
3182         }
3183
3184         return 0;
3185 }
3186
3187 void annotation_config__init(struct annotation_options *opt)
3188 {
3189         perf_config(annotation__config, opt);
3190 }
3191
3192 static unsigned int parse_percent_type(char *str1, char *str2)
3193 {
3194         unsigned int type = (unsigned int) -1;
3195
3196         if (!strcmp("period", str1)) {
3197                 if (!strcmp("local", str2))
3198                         type = PERCENT_PERIOD_LOCAL;
3199                 else if (!strcmp("global", str2))
3200                         type = PERCENT_PERIOD_GLOBAL;
3201         }
3202
3203         if (!strcmp("hits", str1)) {
3204                 if (!strcmp("local", str2))
3205                         type = PERCENT_HITS_LOCAL;
3206                 else if (!strcmp("global", str2))
3207                         type = PERCENT_HITS_GLOBAL;
3208         }
3209
3210         return type;
3211 }
3212
3213 int annotate_parse_percent_type(const struct option *opt, const char *_str,
3214                                 int unset __maybe_unused)
3215 {
3216         struct annotation_options *opts = opt->value;
3217         unsigned int type;
3218         char *str1, *str2;
3219         int err = -1;
3220
3221         str1 = strdup(_str);
3222         if (!str1)
3223                 return -ENOMEM;
3224
3225         str2 = strchr(str1, '-');
3226         if (!str2)
3227                 goto out;
3228
3229         *str2++ = 0;
3230
3231         type = parse_percent_type(str1, str2);
3232         if (type == (unsigned int) -1)
3233                 type = parse_percent_type(str2, str1);
3234         if (type != (unsigned int) -1) {
3235                 opts->percent_type = type;
3236                 err = 0;
3237         }
3238
3239 out:
3240         free(str1);
3241         return err;
3242 }
3243
3244 int annotate_check_args(struct annotation_options *args)
3245 {
3246         if (args->prefix_strip && !args->prefix) {
3247                 pr_err("--prefix-strip requires --prefix\n");
3248                 return -1;
3249         }
3250         return 0;
3251 }