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 <bpf/bpf.h> 13 #include <bpf/btf.h> 14 #include <bpf/libbpf.h> 15 #include <linux/btf.h> 16 #include "util.h" 17 #include "ui/ui.h" 18 #include "sort.h" 19 #include "build-id.h" 20 #include "color.h" 21 #include "config.h" 22 #include "cache.h" 23 #include "map.h" 24 #include "symbol.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 "block-range.h" 32 #include "string2.h" 33 #include "arch/common.h" 34 #include <regex.h> 35 #include <pthread.h> 36 #include <linux/bitops.h> 37 #include <linux/kernel.h> 38 #include <linux/string.h> 39 #include <bpf/libbpf.h> 40 41 /* FIXME: For the HE_COLORSET */ 42 #include "ui/browser.h" 43 44 /* 45 * FIXME: Using the same values as slang.h, 46 * but that header may not be available everywhere 47 */ 48 #define LARROW_CHAR ((unsigned char)',') 49 #define RARROW_CHAR ((unsigned char)'+') 50 #define DARROW_CHAR ((unsigned char)'.') 51 #define UARROW_CHAR ((unsigned char)'-') 52 53 #include <linux/ctype.h> 54 55 struct annotation_options annotation__default_options = { 56 .use_offset = true, 57 .jump_arrows = true, 58 .annotate_src = true, 59 .offset_level = ANNOTATION__OFFSET_JUMP_TARGETS, 60 .percent_type = PERCENT_PERIOD_LOCAL, 61 }; 62 63 static regex_t file_lineno; 64 65 static struct ins_ops *ins__find(struct arch *arch, const char *name); 66 static void ins__sort(struct arch *arch); 67 static int disasm_line__parse(char *line, const char **namep, char **rawp); 68 69 struct arch { 70 const char *name; 71 struct ins *instructions; 72 size_t nr_instructions; 73 size_t nr_instructions_allocated; 74 struct ins_ops *(*associate_instruction_ops)(struct arch *arch, const char *name); 75 bool sorted_instructions; 76 bool initialized; 77 void *priv; 78 unsigned int model; 79 unsigned int family; 80 int (*init)(struct arch *arch, char *cpuid); 81 bool (*ins_is_fused)(struct arch *arch, const char *ins1, 82 const char *ins2); 83 struct { 84 char comment_char; 85 char skip_functions_char; 86 } objdump; 87 }; 88 89 static struct ins_ops call_ops; 90 static struct ins_ops dec_ops; 91 static struct ins_ops jump_ops; 92 static struct ins_ops mov_ops; 93 static struct ins_ops nop_ops; 94 static struct ins_ops lock_ops; 95 static struct ins_ops ret_ops; 96 97 static int arch__grow_instructions(struct arch *arch) 98 { 99 struct ins *new_instructions; 100 size_t new_nr_allocated; 101 102 if (arch->nr_instructions_allocated == 0 && arch->instructions) 103 goto grow_from_non_allocated_table; 104 105 new_nr_allocated = arch->nr_instructions_allocated + 128; 106 new_instructions = realloc(arch->instructions, new_nr_allocated * sizeof(struct ins)); 107 if (new_instructions == NULL) 108 return -1; 109 110 out_update_instructions: 111 arch->instructions = new_instructions; 112 arch->nr_instructions_allocated = new_nr_allocated; 113 return 0; 114 115 grow_from_non_allocated_table: 116 new_nr_allocated = arch->nr_instructions + 128; 117 new_instructions = calloc(new_nr_allocated, sizeof(struct ins)); 118 if (new_instructions == NULL) 119 return -1; 120 121 memcpy(new_instructions, arch->instructions, arch->nr_instructions); 122 goto out_update_instructions; 123 } 124 125 static int arch__associate_ins_ops(struct arch* arch, const char *name, struct ins_ops *ops) 126 { 127 struct ins *ins; 128 129 if (arch->nr_instructions == arch->nr_instructions_allocated && 130 arch__grow_instructions(arch)) 131 return -1; 132 133 ins = &arch->instructions[arch->nr_instructions]; 134 ins->name = strdup(name); 135 if (!ins->name) 136 return -1; 137 138 ins->ops = ops; 139 arch->nr_instructions++; 140 141 ins__sort(arch); 142 return 0; 143 } 144 145 #include "arch/arc/annotate/instructions.c" 146 #include "arch/arm/annotate/instructions.c" 147 #include "arch/arm64/annotate/instructions.c" 148 #include "arch/csky/annotate/instructions.c" 149 #include "arch/x86/annotate/instructions.c" 150 #include "arch/powerpc/annotate/instructions.c" 151 #include "arch/s390/annotate/instructions.c" 152 #include "arch/sparc/annotate/instructions.c" 153 154 static struct arch architectures[] = { 155 { 156 .name = "arc", 157 .init = arc__annotate_init, 158 }, 159 { 160 .name = "arm", 161 .init = arm__annotate_init, 162 }, 163 { 164 .name = "arm64", 165 .init = arm64__annotate_init, 166 }, 167 { 168 .name = "csky", 169 .init = csky__annotate_init, 170 }, 171 { 172 .name = "x86", 173 .init = x86__annotate_init, 174 .instructions = x86__instructions, 175 .nr_instructions = ARRAY_SIZE(x86__instructions), 176 .ins_is_fused = x86__ins_is_fused, 177 .objdump = { 178 .comment_char = '#', 179 }, 180 }, 181 { 182 .name = "powerpc", 183 .init = powerpc__annotate_init, 184 }, 185 { 186 .name = "s390", 187 .init = s390__annotate_init, 188 .objdump = { 189 .comment_char = '#', 190 }, 191 }, 192 { 193 .name = "sparc", 194 .init = sparc__annotate_init, 195 .objdump = { 196 .comment_char = '#', 197 }, 198 }, 199 }; 200 201 static void ins__delete(struct ins_operands *ops) 202 { 203 if (ops == NULL) 204 return; 205 zfree(&ops->source.raw); 206 zfree(&ops->source.name); 207 zfree(&ops->target.raw); 208 zfree(&ops->target.name); 209 } 210 211 static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size, 212 struct ins_operands *ops, int max_ins_name) 213 { 214 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->raw); 215 } 216 217 int ins__scnprintf(struct ins *ins, char *bf, size_t size, 218 struct ins_operands *ops, int max_ins_name) 219 { 220 if (ins->ops->scnprintf) 221 return ins->ops->scnprintf(ins, bf, size, ops, max_ins_name); 222 223 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name); 224 } 225 226 bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2) 227 { 228 if (!arch || !arch->ins_is_fused) 229 return false; 230 231 return arch->ins_is_fused(arch, ins1, ins2); 232 } 233 234 static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms) 235 { 236 char *endptr, *tok, *name; 237 struct map *map = ms->map; 238 struct addr_map_symbol target = { 239 .map = map, 240 }; 241 242 ops->target.addr = strtoull(ops->raw, &endptr, 16); 243 244 name = strchr(endptr, '<'); 245 if (name == NULL) 246 goto indirect_call; 247 248 name++; 249 250 if (arch->objdump.skip_functions_char && 251 strchr(name, arch->objdump.skip_functions_char)) 252 return -1; 253 254 tok = strchr(name, '>'); 255 if (tok == NULL) 256 return -1; 257 258 *tok = '\0'; 259 ops->target.name = strdup(name); 260 *tok = '>'; 261 262 if (ops->target.name == NULL) 263 return -1; 264 find_target: 265 target.addr = map__objdump_2mem(map, ops->target.addr); 266 267 if (map_groups__find_ams(&target) == 0 && 268 map__rip_2objdump(target.map, map->map_ip(target.map, target.addr)) == ops->target.addr) 269 ops->target.sym = target.sym; 270 271 return 0; 272 273 indirect_call: 274 tok = strchr(endptr, '*'); 275 if (tok != NULL) { 276 endptr++; 277 278 /* Indirect call can use a non-rip register and offset: callq *0x8(%rbx). 279 * Do not parse such instruction. */ 280 if (strstr(endptr, "(%r") == NULL) 281 ops->target.addr = strtoull(endptr, NULL, 16); 282 } 283 goto find_target; 284 } 285 286 static int call__scnprintf(struct ins *ins, char *bf, size_t size, 287 struct ins_operands *ops, int max_ins_name) 288 { 289 if (ops->target.sym) 290 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name); 291 292 if (ops->target.addr == 0) 293 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name); 294 295 if (ops->target.name) 296 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.name); 297 298 return scnprintf(bf, size, "%-*s *%" PRIx64, max_ins_name, ins->name, ops->target.addr); 299 } 300 301 static struct ins_ops call_ops = { 302 .parse = call__parse, 303 .scnprintf = call__scnprintf, 304 }; 305 306 bool ins__is_call(const struct ins *ins) 307 { 308 return ins->ops == &call_ops || ins->ops == &s390_call_ops; 309 } 310 311 /* 312 * Prevents from matching commas in the comment section, e.g.: 313 * ffff200008446e70: b.cs ffff2000084470f4 <generic_exec_single+0x314> // b.hs, b.nlast 314 */ 315 static inline const char *validate_comma(const char *c, struct ins_operands *ops) 316 { 317 if (ops->raw_comment && c > ops->raw_comment) 318 return NULL; 319 320 return c; 321 } 322 323 static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms) 324 { 325 struct map *map = ms->map; 326 struct symbol *sym = ms->sym; 327 struct addr_map_symbol target = { 328 .map = map, 329 }; 330 const char *c = strchr(ops->raw, ','); 331 u64 start, end; 332 333 ops->raw_comment = strchr(ops->raw, arch->objdump.comment_char); 334 c = validate_comma(c, ops); 335 336 /* 337 * Examples of lines to parse for the _cpp_lex_token@@Base 338 * function: 339 * 340 * 1159e6c: jne 115aa32 <_cpp_lex_token@@Base+0xf92> 341 * 1159e8b: jne c469be <cpp_named_operator2name@@Base+0xa72> 342 * 343 * The first is a jump to an offset inside the same function, 344 * the second is to another function, i.e. that 0xa72 is an 345 * offset in the cpp_named_operator2name@@base function. 346 */ 347 /* 348 * skip over possible up to 2 operands to get to address, e.g.: 349 * tbnz w0, #26, ffff0000083cd190 <security_file_permission+0xd0> 350 */ 351 if (c++ != NULL) { 352 ops->target.addr = strtoull(c, NULL, 16); 353 if (!ops->target.addr) { 354 c = strchr(c, ','); 355 c = validate_comma(c, ops); 356 if (c++ != NULL) 357 ops->target.addr = strtoull(c, NULL, 16); 358 } 359 } else { 360 ops->target.addr = strtoull(ops->raw, NULL, 16); 361 } 362 363 target.addr = map__objdump_2mem(map, ops->target.addr); 364 start = map->unmap_ip(map, sym->start), 365 end = map->unmap_ip(map, sym->end); 366 367 ops->target.outside = target.addr < start || target.addr > end; 368 369 /* 370 * FIXME: things like this in _cpp_lex_token (gcc's cc1 program): 371 372 cpp_named_operator2name@@Base+0xa72 373 374 * Point to a place that is after the cpp_named_operator2name 375 * boundaries, i.e. in the ELF symbol table for cc1 376 * cpp_named_operator2name is marked as being 32-bytes long, but it in 377 * fact is much larger than that, so we seem to need a symbols__find() 378 * routine that looks for >= current->start and < next_symbol->start, 379 * possibly just for C++ objects? 380 * 381 * For now lets just make some progress by marking jumps to outside the 382 * current function as call like. 383 * 384 * Actual navigation will come next, with further understanding of how 385 * the symbol searching and disassembly should be done. 386 */ 387 if (map_groups__find_ams(&target) == 0 && 388 map__rip_2objdump(target.map, map->map_ip(target.map, target.addr)) == ops->target.addr) 389 ops->target.sym = target.sym; 390 391 if (!ops->target.outside) { 392 ops->target.offset = target.addr - start; 393 ops->target.offset_avail = true; 394 } else { 395 ops->target.offset_avail = false; 396 } 397 398 return 0; 399 } 400 401 static int jump__scnprintf(struct ins *ins, char *bf, size_t size, 402 struct ins_operands *ops, int max_ins_name) 403 { 404 const char *c; 405 406 if (!ops->target.addr || ops->target.offset < 0) 407 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name); 408 409 if (ops->target.outside && ops->target.sym != NULL) 410 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name); 411 412 c = strchr(ops->raw, ','); 413 c = validate_comma(c, ops); 414 415 if (c != NULL) { 416 const char *c2 = strchr(c + 1, ','); 417 418 c2 = validate_comma(c2, ops); 419 /* check for 3-op insn */ 420 if (c2 != NULL) 421 c = c2; 422 c++; 423 424 /* mirror arch objdump's space-after-comma style */ 425 if (*c == ' ') 426 c++; 427 } 428 429 return scnprintf(bf, size, "%-*s %.*s%" PRIx64, max_ins_name, 430 ins->name, c ? c - ops->raw : 0, ops->raw, 431 ops->target.offset); 432 } 433 434 static struct ins_ops jump_ops = { 435 .parse = jump__parse, 436 .scnprintf = jump__scnprintf, 437 }; 438 439 bool ins__is_jump(const struct ins *ins) 440 { 441 return ins->ops == &jump_ops; 442 } 443 444 static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep) 445 { 446 char *endptr, *name, *t; 447 448 if (strstr(raw, "(%rip)") == NULL) 449 return 0; 450 451 *addrp = strtoull(comment, &endptr, 16); 452 if (endptr == comment) 453 return 0; 454 name = strchr(endptr, '<'); 455 if (name == NULL) 456 return -1; 457 458 name++; 459 460 t = strchr(name, '>'); 461 if (t == NULL) 462 return 0; 463 464 *t = '\0'; 465 *namep = strdup(name); 466 *t = '>'; 467 468 return 0; 469 } 470 471 static int lock__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms) 472 { 473 ops->locked.ops = zalloc(sizeof(*ops->locked.ops)); 474 if (ops->locked.ops == NULL) 475 return 0; 476 477 if (disasm_line__parse(ops->raw, &ops->locked.ins.name, &ops->locked.ops->raw) < 0) 478 goto out_free_ops; 479 480 ops->locked.ins.ops = ins__find(arch, ops->locked.ins.name); 481 482 if (ops->locked.ins.ops == NULL) 483 goto out_free_ops; 484 485 if (ops->locked.ins.ops->parse && 486 ops->locked.ins.ops->parse(arch, ops->locked.ops, ms) < 0) 487 goto out_free_ops; 488 489 return 0; 490 491 out_free_ops: 492 zfree(&ops->locked.ops); 493 return 0; 494 } 495 496 static int lock__scnprintf(struct ins *ins, char *bf, size_t size, 497 struct ins_operands *ops, int max_ins_name) 498 { 499 int printed; 500 501 if (ops->locked.ins.ops == NULL) 502 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name); 503 504 printed = scnprintf(bf, size, "%-*s ", max_ins_name, ins->name); 505 return printed + ins__scnprintf(&ops->locked.ins, bf + printed, 506 size - printed, ops->locked.ops, max_ins_name); 507 } 508 509 static void lock__delete(struct ins_operands *ops) 510 { 511 struct ins *ins = &ops->locked.ins; 512 513 if (ins->ops && ins->ops->free) 514 ins->ops->free(ops->locked.ops); 515 else 516 ins__delete(ops->locked.ops); 517 518 zfree(&ops->locked.ops); 519 zfree(&ops->target.raw); 520 zfree(&ops->target.name); 521 } 522 523 static struct ins_ops lock_ops = { 524 .free = lock__delete, 525 .parse = lock__parse, 526 .scnprintf = lock__scnprintf, 527 }; 528 529 static int mov__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms __maybe_unused) 530 { 531 char *s = strchr(ops->raw, ','), *target, *comment, prev; 532 533 if (s == NULL) 534 return -1; 535 536 *s = '\0'; 537 ops->source.raw = strdup(ops->raw); 538 *s = ','; 539 540 if (ops->source.raw == NULL) 541 return -1; 542 543 target = ++s; 544 comment = strchr(s, arch->objdump.comment_char); 545 546 if (comment != NULL) 547 s = comment - 1; 548 else 549 s = strchr(s, '\0') - 1; 550 551 while (s > target && isspace(s[0])) 552 --s; 553 s++; 554 prev = *s; 555 *s = '\0'; 556 557 ops->target.raw = strdup(target); 558 *s = prev; 559 560 if (ops->target.raw == NULL) 561 goto out_free_source; 562 563 if (comment == NULL) 564 return 0; 565 566 comment = skip_spaces(comment); 567 comment__symbol(ops->source.raw, comment + 1, &ops->source.addr, &ops->source.name); 568 comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name); 569 570 return 0; 571 572 out_free_source: 573 zfree(&ops->source.raw); 574 return -1; 575 } 576 577 static int mov__scnprintf(struct ins *ins, char *bf, size_t size, 578 struct ins_operands *ops, int max_ins_name) 579 { 580 return scnprintf(bf, size, "%-*s %s,%s", max_ins_name, ins->name, 581 ops->source.name ?: ops->source.raw, 582 ops->target.name ?: ops->target.raw); 583 } 584 585 static struct ins_ops mov_ops = { 586 .parse = mov__parse, 587 .scnprintf = mov__scnprintf, 588 }; 589 590 static int dec__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map_symbol *ms __maybe_unused) 591 { 592 char *target, *comment, *s, prev; 593 594 target = s = ops->raw; 595 596 while (s[0] != '\0' && !isspace(s[0])) 597 ++s; 598 prev = *s; 599 *s = '\0'; 600 601 ops->target.raw = strdup(target); 602 *s = prev; 603 604 if (ops->target.raw == NULL) 605 return -1; 606 607 comment = strchr(s, arch->objdump.comment_char); 608 if (comment == NULL) 609 return 0; 610 611 comment = skip_spaces(comment); 612 comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name); 613 614 return 0; 615 } 616 617 static int dec__scnprintf(struct ins *ins, char *bf, size_t size, 618 struct ins_operands *ops, int max_ins_name) 619 { 620 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, 621 ops->target.name ?: ops->target.raw); 622 } 623 624 static struct ins_ops dec_ops = { 625 .parse = dec__parse, 626 .scnprintf = dec__scnprintf, 627 }; 628 629 static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size, 630 struct ins_operands *ops __maybe_unused, int max_ins_name) 631 { 632 return scnprintf(bf, size, "%-*s", max_ins_name, "nop"); 633 } 634 635 static struct ins_ops nop_ops = { 636 .scnprintf = nop__scnprintf, 637 }; 638 639 static struct ins_ops ret_ops = { 640 .scnprintf = ins__raw_scnprintf, 641 }; 642 643 bool ins__is_ret(const struct ins *ins) 644 { 645 return ins->ops == &ret_ops; 646 } 647 648 bool ins__is_lock(const struct ins *ins) 649 { 650 return ins->ops == &lock_ops; 651 } 652 653 static int ins__key_cmp(const void *name, const void *insp) 654 { 655 const struct ins *ins = insp; 656 657 return strcmp(name, ins->name); 658 } 659 660 static int ins__cmp(const void *a, const void *b) 661 { 662 const struct ins *ia = a; 663 const struct ins *ib = b; 664 665 return strcmp(ia->name, ib->name); 666 } 667 668 static void ins__sort(struct arch *arch) 669 { 670 const int nmemb = arch->nr_instructions; 671 672 qsort(arch->instructions, nmemb, sizeof(struct ins), ins__cmp); 673 } 674 675 static struct ins_ops *__ins__find(struct arch *arch, const char *name) 676 { 677 struct ins *ins; 678 const int nmemb = arch->nr_instructions; 679 680 if (!arch->sorted_instructions) { 681 ins__sort(arch); 682 arch->sorted_instructions = true; 683 } 684 685 ins = bsearch(name, arch->instructions, nmemb, sizeof(struct ins), ins__key_cmp); 686 return ins ? ins->ops : NULL; 687 } 688 689 static struct ins_ops *ins__find(struct arch *arch, const char *name) 690 { 691 struct ins_ops *ops = __ins__find(arch, name); 692 693 if (!ops && arch->associate_instruction_ops) 694 ops = arch->associate_instruction_ops(arch, name); 695 696 return ops; 697 } 698 699 static int arch__key_cmp(const void *name, const void *archp) 700 { 701 const struct arch *arch = archp; 702 703 return strcmp(name, arch->name); 704 } 705 706 static int arch__cmp(const void *a, const void *b) 707 { 708 const struct arch *aa = a; 709 const struct arch *ab = b; 710 711 return strcmp(aa->name, ab->name); 712 } 713 714 static void arch__sort(void) 715 { 716 const int nmemb = ARRAY_SIZE(architectures); 717 718 qsort(architectures, nmemb, sizeof(struct arch), arch__cmp); 719 } 720 721 static struct arch *arch__find(const char *name) 722 { 723 const int nmemb = ARRAY_SIZE(architectures); 724 static bool sorted; 725 726 if (!sorted) { 727 arch__sort(); 728 sorted = true; 729 } 730 731 return bsearch(name, architectures, nmemb, sizeof(struct arch), arch__key_cmp); 732 } 733 734 static struct annotated_source *annotated_source__new(void) 735 { 736 struct annotated_source *src = zalloc(sizeof(*src)); 737 738 if (src != NULL) 739 INIT_LIST_HEAD(&src->source); 740 741 return src; 742 } 743 744 static __maybe_unused void annotated_source__delete(struct annotated_source *src) 745 { 746 if (src == NULL) 747 return; 748 zfree(&src->histograms); 749 zfree(&src->cycles_hist); 750 free(src); 751 } 752 753 static int annotated_source__alloc_histograms(struct annotated_source *src, 754 size_t size, int nr_hists) 755 { 756 size_t sizeof_sym_hist; 757 758 /* 759 * Add buffer of one element for zero length symbol. 760 * When sample is taken from first instruction of 761 * zero length symbol, perf still resolves it and 762 * shows symbol name in perf report and allows to 763 * annotate it. 764 */ 765 if (size == 0) 766 size = 1; 767 768 /* Check for overflow when calculating sizeof_sym_hist */ 769 if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(struct sym_hist_entry)) 770 return -1; 771 772 sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(struct sym_hist_entry)); 773 774 /* Check for overflow in zalloc argument */ 775 if (sizeof_sym_hist > SIZE_MAX / nr_hists) 776 return -1; 777 778 src->sizeof_sym_hist = sizeof_sym_hist; 779 src->nr_histograms = nr_hists; 780 src->histograms = calloc(nr_hists, sizeof_sym_hist) ; 781 return src->histograms ? 0 : -1; 782 } 783 784 /* The cycles histogram is lazily allocated. */ 785 static int symbol__alloc_hist_cycles(struct symbol *sym) 786 { 787 struct annotation *notes = symbol__annotation(sym); 788 const size_t size = symbol__size(sym); 789 790 notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist)); 791 if (notes->src->cycles_hist == NULL) 792 return -1; 793 return 0; 794 } 795 796 void symbol__annotate_zero_histograms(struct symbol *sym) 797 { 798 struct annotation *notes = symbol__annotation(sym); 799 800 pthread_mutex_lock(¬es->lock); 801 if (notes->src != NULL) { 802 memset(notes->src->histograms, 0, 803 notes->src->nr_histograms * notes->src->sizeof_sym_hist); 804 if (notes->src->cycles_hist) 805 memset(notes->src->cycles_hist, 0, 806 symbol__size(sym) * sizeof(struct cyc_hist)); 807 } 808 pthread_mutex_unlock(¬es->lock); 809 } 810 811 static int __symbol__account_cycles(struct cyc_hist *ch, 812 u64 start, 813 unsigned offset, unsigned cycles, 814 unsigned have_start) 815 { 816 /* 817 * For now we can only account one basic block per 818 * final jump. But multiple could be overlapping. 819 * Always account the longest one. So when 820 * a shorter one has been already seen throw it away. 821 * 822 * We separately always account the full cycles. 823 */ 824 ch[offset].num_aggr++; 825 ch[offset].cycles_aggr += cycles; 826 827 if (cycles > ch[offset].cycles_max) 828 ch[offset].cycles_max = cycles; 829 830 if (ch[offset].cycles_min) { 831 if (cycles && cycles < ch[offset].cycles_min) 832 ch[offset].cycles_min = cycles; 833 } else 834 ch[offset].cycles_min = cycles; 835 836 if (!have_start && ch[offset].have_start) 837 return 0; 838 if (ch[offset].num) { 839 if (have_start && (!ch[offset].have_start || 840 ch[offset].start > start)) { 841 ch[offset].have_start = 0; 842 ch[offset].cycles = 0; 843 ch[offset].num = 0; 844 if (ch[offset].reset < 0xffff) 845 ch[offset].reset++; 846 } else if (have_start && 847 ch[offset].start < start) 848 return 0; 849 } 850 ch[offset].have_start = have_start; 851 ch[offset].start = start; 852 ch[offset].cycles += cycles; 853 ch[offset].num++; 854 return 0; 855 } 856 857 static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map, 858 struct annotated_source *src, int evidx, u64 addr, 859 struct perf_sample *sample) 860 { 861 unsigned offset; 862 struct sym_hist *h; 863 864 pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr)); 865 866 if ((addr < sym->start || addr >= sym->end) && 867 (addr != sym->end || sym->start != sym->end)) { 868 pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n", 869 __func__, __LINE__, sym->name, sym->start, addr, sym->end); 870 return -ERANGE; 871 } 872 873 offset = addr - sym->start; 874 h = annotated_source__histogram(src, evidx); 875 if (h == NULL) { 876 pr_debug("%s(%d): ENOMEM! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 ", func: %d\n", 877 __func__, __LINE__, sym->name, sym->start, addr, sym->end, sym->type == STT_FUNC); 878 return -ENOMEM; 879 } 880 h->nr_samples++; 881 h->addr[offset].nr_samples++; 882 h->period += sample->period; 883 h->addr[offset].period += sample->period; 884 885 pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64 886 ", evidx=%d] => nr_samples: %" PRIu64 ", period: %" PRIu64 "\n", 887 sym->start, sym->name, addr, addr - sym->start, evidx, 888 h->addr[offset].nr_samples, h->addr[offset].period); 889 return 0; 890 } 891 892 static struct cyc_hist *symbol__cycles_hist(struct symbol *sym) 893 { 894 struct annotation *notes = symbol__annotation(sym); 895 896 if (notes->src == NULL) { 897 notes->src = annotated_source__new(); 898 if (notes->src == NULL) 899 return NULL; 900 goto alloc_cycles_hist; 901 } 902 903 if (!notes->src->cycles_hist) { 904 alloc_cycles_hist: 905 symbol__alloc_hist_cycles(sym); 906 } 907 908 return notes->src->cycles_hist; 909 } 910 911 struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists) 912 { 913 struct annotation *notes = symbol__annotation(sym); 914 915 if (notes->src == NULL) { 916 notes->src = annotated_source__new(); 917 if (notes->src == NULL) 918 return NULL; 919 goto alloc_histograms; 920 } 921 922 if (notes->src->histograms == NULL) { 923 alloc_histograms: 924 annotated_source__alloc_histograms(notes->src, symbol__size(sym), 925 nr_hists); 926 } 927 928 return notes->src; 929 } 930 931 static int symbol__inc_addr_samples(struct symbol *sym, struct map *map, 932 struct perf_evsel *evsel, u64 addr, 933 struct perf_sample *sample) 934 { 935 struct annotated_source *src; 936 937 if (sym == NULL) 938 return 0; 939 src = symbol__hists(sym, evsel->evlist->nr_entries); 940 return (src) ? __symbol__inc_addr_samples(sym, map, src, evsel->idx, 941 addr, sample) : 0; 942 } 943 944 static int symbol__account_cycles(u64 addr, u64 start, 945 struct symbol *sym, unsigned cycles) 946 { 947 struct cyc_hist *cycles_hist; 948 unsigned offset; 949 950 if (sym == NULL) 951 return 0; 952 cycles_hist = symbol__cycles_hist(sym); 953 if (cycles_hist == NULL) 954 return -ENOMEM; 955 if (addr < sym->start || addr >= sym->end) 956 return -ERANGE; 957 958 if (start) { 959 if (start < sym->start || start >= sym->end) 960 return -ERANGE; 961 if (start >= addr) 962 start = 0; 963 } 964 offset = addr - sym->start; 965 return __symbol__account_cycles(cycles_hist, 966 start ? start - sym->start : 0, 967 offset, cycles, 968 !!start); 969 } 970 971 int addr_map_symbol__account_cycles(struct addr_map_symbol *ams, 972 struct addr_map_symbol *start, 973 unsigned cycles) 974 { 975 u64 saddr = 0; 976 int err; 977 978 if (!cycles) 979 return 0; 980 981 /* 982 * Only set start when IPC can be computed. We can only 983 * compute it when the basic block is completely in a single 984 * function. 985 * Special case the case when the jump is elsewhere, but 986 * it starts on the function start. 987 */ 988 if (start && 989 (start->sym == ams->sym || 990 (ams->sym && 991 start->addr == ams->sym->start + ams->map->start))) 992 saddr = start->al_addr; 993 if (saddr == 0) 994 pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n", 995 ams->addr, 996 start ? start->addr : 0, 997 ams->sym ? ams->sym->start + ams->map->start : 0, 998 saddr); 999 err = symbol__account_cycles(ams->al_addr, saddr, ams->sym, cycles); 1000 if (err) 1001 pr_debug2("account_cycles failed %d\n", err); 1002 return err; 1003 } 1004 1005 static unsigned annotation__count_insn(struct annotation *notes, u64 start, u64 end) 1006 { 1007 unsigned n_insn = 0; 1008 u64 offset; 1009 1010 for (offset = start; offset <= end; offset++) { 1011 if (notes->offsets[offset]) 1012 n_insn++; 1013 } 1014 return n_insn; 1015 } 1016 1017 static void annotation__count_and_fill(struct annotation *notes, u64 start, u64 end, struct cyc_hist *ch) 1018 { 1019 unsigned n_insn; 1020 unsigned int cover_insn = 0; 1021 u64 offset; 1022 1023 n_insn = annotation__count_insn(notes, start, end); 1024 if (n_insn && ch->num && ch->cycles) { 1025 float ipc = n_insn / ((double)ch->cycles / (double)ch->num); 1026 1027 /* Hide data when there are too many overlaps. */ 1028 if (ch->reset >= 0x7fff) 1029 return; 1030 1031 for (offset = start; offset <= end; offset++) { 1032 struct annotation_line *al = notes->offsets[offset]; 1033 1034 if (al && al->ipc == 0.0) { 1035 al->ipc = ipc; 1036 cover_insn++; 1037 } 1038 } 1039 1040 if (cover_insn) { 1041 notes->hit_cycles += ch->cycles; 1042 notes->hit_insn += n_insn * ch->num; 1043 notes->cover_insn += cover_insn; 1044 } 1045 } 1046 } 1047 1048 void annotation__compute_ipc(struct annotation *notes, size_t size) 1049 { 1050 s64 offset; 1051 1052 if (!notes->src || !notes->src->cycles_hist) 1053 return; 1054 1055 notes->total_insn = annotation__count_insn(notes, 0, size - 1); 1056 notes->hit_cycles = 0; 1057 notes->hit_insn = 0; 1058 notes->cover_insn = 0; 1059 1060 pthread_mutex_lock(¬es->lock); 1061 for (offset = size - 1; offset >= 0; --offset) { 1062 struct cyc_hist *ch; 1063 1064 ch = ¬es->src->cycles_hist[offset]; 1065 if (ch && ch->cycles) { 1066 struct annotation_line *al; 1067 1068 if (ch->have_start) 1069 annotation__count_and_fill(notes, ch->start, offset, ch); 1070 al = notes->offsets[offset]; 1071 if (al && ch->num_aggr) { 1072 al->cycles = ch->cycles_aggr / ch->num_aggr; 1073 al->cycles_max = ch->cycles_max; 1074 al->cycles_min = ch->cycles_min; 1075 } 1076 notes->have_cycles = true; 1077 } 1078 } 1079 pthread_mutex_unlock(¬es->lock); 1080 } 1081 1082 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample, 1083 struct perf_evsel *evsel) 1084 { 1085 return symbol__inc_addr_samples(ams->sym, ams->map, evsel, ams->al_addr, sample); 1086 } 1087 1088 int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample, 1089 struct perf_evsel *evsel, u64 ip) 1090 { 1091 return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evsel, ip, sample); 1092 } 1093 1094 static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, struct map_symbol *ms) 1095 { 1096 dl->ins.ops = ins__find(arch, dl->ins.name); 1097 1098 if (!dl->ins.ops) 1099 return; 1100 1101 if (dl->ins.ops->parse && dl->ins.ops->parse(arch, &dl->ops, ms) < 0) 1102 dl->ins.ops = NULL; 1103 } 1104 1105 static int disasm_line__parse(char *line, const char **namep, char **rawp) 1106 { 1107 char tmp, *name = skip_spaces(line); 1108 1109 if (name[0] == '\0') 1110 return -1; 1111 1112 *rawp = name + 1; 1113 1114 while ((*rawp)[0] != '\0' && !isspace((*rawp)[0])) 1115 ++*rawp; 1116 1117 tmp = (*rawp)[0]; 1118 (*rawp)[0] = '\0'; 1119 *namep = strdup(name); 1120 1121 if (*namep == NULL) 1122 goto out; 1123 1124 (*rawp)[0] = tmp; 1125 *rawp = skip_spaces(*rawp); 1126 1127 return 0; 1128 1129 out: 1130 return -1; 1131 } 1132 1133 struct annotate_args { 1134 size_t privsize; 1135 struct arch *arch; 1136 struct map_symbol ms; 1137 struct perf_evsel *evsel; 1138 struct annotation_options *options; 1139 s64 offset; 1140 char *line; 1141 int line_nr; 1142 }; 1143 1144 static void annotation_line__delete(struct annotation_line *al) 1145 { 1146 void *ptr = (void *) al - al->privsize; 1147 1148 free_srcline(al->path); 1149 zfree(&al->line); 1150 free(ptr); 1151 } 1152 1153 /* 1154 * Allocating the annotation line data with following 1155 * structure: 1156 * 1157 * -------------------------------------- 1158 * private space | struct annotation_line 1159 * -------------------------------------- 1160 * 1161 * Size of the private space is stored in 'struct annotation_line'. 1162 * 1163 */ 1164 static struct annotation_line * 1165 annotation_line__new(struct annotate_args *args, size_t privsize) 1166 { 1167 struct annotation_line *al; 1168 struct perf_evsel *evsel = args->evsel; 1169 size_t size = privsize + sizeof(*al); 1170 int nr = 1; 1171 1172 if (perf_evsel__is_group_event(evsel)) 1173 nr = evsel->nr_members; 1174 1175 size += sizeof(al->data[0]) * nr; 1176 1177 al = zalloc(size); 1178 if (al) { 1179 al = (void *) al + privsize; 1180 al->privsize = privsize; 1181 al->offset = args->offset; 1182 al->line = strdup(args->line); 1183 al->line_nr = args->line_nr; 1184 al->data_nr = nr; 1185 } 1186 1187 return al; 1188 } 1189 1190 /* 1191 * Allocating the disasm annotation line data with 1192 * following structure: 1193 * 1194 * ------------------------------------------------------------ 1195 * privsize space | struct disasm_line | struct annotation_line 1196 * ------------------------------------------------------------ 1197 * 1198 * We have 'struct annotation_line' member as last member 1199 * of 'struct disasm_line' to have an easy access. 1200 * 1201 */ 1202 static struct disasm_line *disasm_line__new(struct annotate_args *args) 1203 { 1204 struct disasm_line *dl = NULL; 1205 struct annotation_line *al; 1206 size_t privsize = args->privsize + offsetof(struct disasm_line, al); 1207 1208 al = annotation_line__new(args, privsize); 1209 if (al != NULL) { 1210 dl = disasm_line(al); 1211 1212 if (dl->al.line == NULL) 1213 goto out_delete; 1214 1215 if (args->offset != -1) { 1216 if (disasm_line__parse(dl->al.line, &dl->ins.name, &dl->ops.raw) < 0) 1217 goto out_free_line; 1218 1219 disasm_line__init_ins(dl, args->arch, &args->ms); 1220 } 1221 } 1222 1223 return dl; 1224 1225 out_free_line: 1226 zfree(&dl->al.line); 1227 out_delete: 1228 free(dl); 1229 return NULL; 1230 } 1231 1232 void disasm_line__free(struct disasm_line *dl) 1233 { 1234 if (dl->ins.ops && dl->ins.ops->free) 1235 dl->ins.ops->free(&dl->ops); 1236 else 1237 ins__delete(&dl->ops); 1238 zfree(&dl->ins.name); 1239 annotation_line__delete(&dl->al); 1240 } 1241 1242 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw, int max_ins_name) 1243 { 1244 if (raw || !dl->ins.ops) 1245 return scnprintf(bf, size, "%-*s %s", max_ins_name, dl->ins.name, dl->ops.raw); 1246 1247 return ins__scnprintf(&dl->ins, bf, size, &dl->ops, max_ins_name); 1248 } 1249 1250 static void annotation_line__add(struct annotation_line *al, struct list_head *head) 1251 { 1252 list_add_tail(&al->node, head); 1253 } 1254 1255 struct annotation_line * 1256 annotation_line__next(struct annotation_line *pos, struct list_head *head) 1257 { 1258 list_for_each_entry_continue(pos, head, node) 1259 if (pos->offset >= 0) 1260 return pos; 1261 1262 return NULL; 1263 } 1264 1265 static const char *annotate__address_color(struct block_range *br) 1266 { 1267 double cov = block_range__coverage(br); 1268 1269 if (cov >= 0) { 1270 /* mark red for >75% coverage */ 1271 if (cov > 0.75) 1272 return PERF_COLOR_RED; 1273 1274 /* mark dull for <1% coverage */ 1275 if (cov < 0.01) 1276 return PERF_COLOR_NORMAL; 1277 } 1278 1279 return PERF_COLOR_MAGENTA; 1280 } 1281 1282 static const char *annotate__asm_color(struct block_range *br) 1283 { 1284 double cov = block_range__coverage(br); 1285 1286 if (cov >= 0) { 1287 /* mark dull for <1% coverage */ 1288 if (cov < 0.01) 1289 return PERF_COLOR_NORMAL; 1290 } 1291 1292 return PERF_COLOR_BLUE; 1293 } 1294 1295 static void annotate__branch_printf(struct block_range *br, u64 addr) 1296 { 1297 bool emit_comment = true; 1298 1299 if (!br) 1300 return; 1301 1302 #if 1 1303 if (br->is_target && br->start == addr) { 1304 struct block_range *branch = br; 1305 double p; 1306 1307 /* 1308 * Find matching branch to our target. 1309 */ 1310 while (!branch->is_branch) 1311 branch = block_range__next(branch); 1312 1313 p = 100 *(double)br->entry / branch->coverage; 1314 1315 if (p > 0.1) { 1316 if (emit_comment) { 1317 emit_comment = false; 1318 printf("\t#"); 1319 } 1320 1321 /* 1322 * The percentage of coverage joined at this target in relation 1323 * to the next branch. 1324 */ 1325 printf(" +%.2f%%", p); 1326 } 1327 } 1328 #endif 1329 if (br->is_branch && br->end == addr) { 1330 double p = 100*(double)br->taken / br->coverage; 1331 1332 if (p > 0.1) { 1333 if (emit_comment) { 1334 emit_comment = false; 1335 printf("\t#"); 1336 } 1337 1338 /* 1339 * The percentage of coverage leaving at this branch, and 1340 * its prediction ratio. 1341 */ 1342 printf(" -%.2f%% (p:%.2f%%)", p, 100*(double)br->pred / br->taken); 1343 } 1344 } 1345 } 1346 1347 static int disasm_line__print(struct disasm_line *dl, u64 start, int addr_fmt_width) 1348 { 1349 s64 offset = dl->al.offset; 1350 const u64 addr = start + offset; 1351 struct block_range *br; 1352 1353 br = block_range__find(addr); 1354 color_fprintf(stdout, annotate__address_color(br), " %*" PRIx64 ":", addr_fmt_width, addr); 1355 color_fprintf(stdout, annotate__asm_color(br), "%s", dl->al.line); 1356 annotate__branch_printf(br, addr); 1357 return 0; 1358 } 1359 1360 static int 1361 annotation_line__print(struct annotation_line *al, struct symbol *sym, u64 start, 1362 struct perf_evsel *evsel, u64 len, int min_pcnt, int printed, 1363 int max_lines, struct annotation_line *queue, int addr_fmt_width, 1364 int percent_type) 1365 { 1366 struct disasm_line *dl = container_of(al, struct disasm_line, al); 1367 static const char *prev_line; 1368 static const char *prev_color; 1369 1370 if (al->offset != -1) { 1371 double max_percent = 0.0; 1372 int i, nr_percent = 1; 1373 const char *color; 1374 struct annotation *notes = symbol__annotation(sym); 1375 1376 for (i = 0; i < al->data_nr; i++) { 1377 double percent; 1378 1379 percent = annotation_data__percent(&al->data[i], 1380 percent_type); 1381 1382 if (percent > max_percent) 1383 max_percent = percent; 1384 } 1385 1386 if (al->data_nr > nr_percent) 1387 nr_percent = al->data_nr; 1388 1389 if (max_percent < min_pcnt) 1390 return -1; 1391 1392 if (max_lines && printed >= max_lines) 1393 return 1; 1394 1395 if (queue != NULL) { 1396 list_for_each_entry_from(queue, ¬es->src->source, node) { 1397 if (queue == al) 1398 break; 1399 annotation_line__print(queue, sym, start, evsel, len, 1400 0, 0, 1, NULL, addr_fmt_width, 1401 percent_type); 1402 } 1403 } 1404 1405 color = get_percent_color(max_percent); 1406 1407 /* 1408 * Also color the filename and line if needed, with 1409 * the same color than the percentage. Don't print it 1410 * twice for close colored addr with the same filename:line 1411 */ 1412 if (al->path) { 1413 if (!prev_line || strcmp(prev_line, al->path) 1414 || color != prev_color) { 1415 color_fprintf(stdout, color, " %s", al->path); 1416 prev_line = al->path; 1417 prev_color = color; 1418 } 1419 } 1420 1421 for (i = 0; i < nr_percent; i++) { 1422 struct annotation_data *data = &al->data[i]; 1423 double percent; 1424 1425 percent = annotation_data__percent(data, percent_type); 1426 color = get_percent_color(percent); 1427 1428 if (symbol_conf.show_total_period) 1429 color_fprintf(stdout, color, " %11" PRIu64, 1430 data->he.period); 1431 else if (symbol_conf.show_nr_samples) 1432 color_fprintf(stdout, color, " %7" PRIu64, 1433 data->he.nr_samples); 1434 else 1435 color_fprintf(stdout, color, " %7.2f", percent); 1436 } 1437 1438 printf(" : "); 1439 1440 disasm_line__print(dl, start, addr_fmt_width); 1441 printf("\n"); 1442 } else if (max_lines && printed >= max_lines) 1443 return 1; 1444 else { 1445 int width = symbol_conf.show_total_period ? 12 : 8; 1446 1447 if (queue) 1448 return -1; 1449 1450 if (perf_evsel__is_group_event(evsel)) 1451 width *= evsel->nr_members; 1452 1453 if (!*al->line) 1454 printf(" %*s:\n", width, " "); 1455 else 1456 printf(" %*s: %*s %s\n", width, " ", addr_fmt_width, " ", al->line); 1457 } 1458 1459 return 0; 1460 } 1461 1462 /* 1463 * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw) 1464 * which looks like following 1465 * 1466 * 0000000000415500 <_init>: 1467 * 415500: sub $0x8,%rsp 1468 * 415504: mov 0x2f5ad5(%rip),%rax # 70afe0 <_DYNAMIC+0x2f8> 1469 * 41550b: test %rax,%rax 1470 * 41550e: je 415515 <_init+0x15> 1471 * 415510: callq 416e70 <__gmon_start__@plt> 1472 * 415515: add $0x8,%rsp 1473 * 415519: retq 1474 * 1475 * it will be parsed and saved into struct disasm_line as 1476 * <offset> <name> <ops.raw> 1477 * 1478 * The offset will be a relative offset from the start of the symbol and -1 1479 * means that it's not a disassembly line so should be treated differently. 1480 * The ops.raw part will be parsed further according to type of the instruction. 1481 */ 1482 static int symbol__parse_objdump_line(struct symbol *sym, FILE *file, 1483 struct annotate_args *args, 1484 int *line_nr) 1485 { 1486 struct map *map = args->ms.map; 1487 struct annotation *notes = symbol__annotation(sym); 1488 struct disasm_line *dl; 1489 char *line = NULL, *parsed_line, *tmp, *tmp2; 1490 size_t line_len; 1491 s64 line_ip, offset = -1; 1492 regmatch_t match[2]; 1493 1494 if (getline(&line, &line_len, file) < 0) 1495 return -1; 1496 1497 if (!line) 1498 return -1; 1499 1500 line_ip = -1; 1501 parsed_line = strim(line); 1502 1503 /* /filename:linenr ? Save line number and ignore. */ 1504 if (regexec(&file_lineno, parsed_line, 2, match, 0) == 0) { 1505 *line_nr = atoi(parsed_line + match[1].rm_so); 1506 return 0; 1507 } 1508 1509 tmp = skip_spaces(parsed_line); 1510 if (*tmp) { 1511 /* 1512 * Parse hexa addresses followed by ':' 1513 */ 1514 line_ip = strtoull(tmp, &tmp2, 16); 1515 if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0') 1516 line_ip = -1; 1517 } 1518 1519 if (line_ip != -1) { 1520 u64 start = map__rip_2objdump(map, sym->start), 1521 end = map__rip_2objdump(map, sym->end); 1522 1523 offset = line_ip - start; 1524 if ((u64)line_ip < start || (u64)line_ip >= end) 1525 offset = -1; 1526 else 1527 parsed_line = tmp2 + 1; 1528 } 1529 1530 args->offset = offset; 1531 args->line = parsed_line; 1532 args->line_nr = *line_nr; 1533 args->ms.sym = sym; 1534 1535 dl = disasm_line__new(args); 1536 free(line); 1537 (*line_nr)++; 1538 1539 if (dl == NULL) 1540 return -1; 1541 1542 if (!disasm_line__has_local_offset(dl)) { 1543 dl->ops.target.offset = dl->ops.target.addr - 1544 map__rip_2objdump(map, sym->start); 1545 dl->ops.target.offset_avail = true; 1546 } 1547 1548 /* kcore has no symbols, so add the call target symbol */ 1549 if (dl->ins.ops && ins__is_call(&dl->ins) && !dl->ops.target.sym) { 1550 struct addr_map_symbol target = { 1551 .map = map, 1552 .addr = dl->ops.target.addr, 1553 }; 1554 1555 if (!map_groups__find_ams(&target) && 1556 target.sym->start == target.al_addr) 1557 dl->ops.target.sym = target.sym; 1558 } 1559 1560 annotation_line__add(&dl->al, ¬es->src->source); 1561 1562 return 0; 1563 } 1564 1565 static __attribute__((constructor)) void symbol__init_regexpr(void) 1566 { 1567 regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED); 1568 } 1569 1570 static void delete_last_nop(struct symbol *sym) 1571 { 1572 struct annotation *notes = symbol__annotation(sym); 1573 struct list_head *list = ¬es->src->source; 1574 struct disasm_line *dl; 1575 1576 while (!list_empty(list)) { 1577 dl = list_entry(list->prev, struct disasm_line, al.node); 1578 1579 if (dl->ins.ops) { 1580 if (dl->ins.ops != &nop_ops) 1581 return; 1582 } else { 1583 if (!strstr(dl->al.line, " nop ") && 1584 !strstr(dl->al.line, " nopl ") && 1585 !strstr(dl->al.line, " nopw ")) 1586 return; 1587 } 1588 1589 list_del_init(&dl->al.node); 1590 disasm_line__free(dl); 1591 } 1592 } 1593 1594 int symbol__strerror_disassemble(struct symbol *sym __maybe_unused, struct map *map, 1595 int errnum, char *buf, size_t buflen) 1596 { 1597 struct dso *dso = map->dso; 1598 1599 BUG_ON(buflen == 0); 1600 1601 if (errnum >= 0) { 1602 str_error_r(errnum, buf, buflen); 1603 return 0; 1604 } 1605 1606 switch (errnum) { 1607 case SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX: { 1608 char bf[SBUILD_ID_SIZE + 15] = " with build id "; 1609 char *build_id_msg = NULL; 1610 1611 if (dso->has_build_id) { 1612 build_id__sprintf(dso->build_id, 1613 sizeof(dso->build_id), bf + 15); 1614 build_id_msg = bf; 1615 } 1616 scnprintf(buf, buflen, 1617 "No vmlinux file%s\nwas found in the path.\n\n" 1618 "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n" 1619 "Please use:\n\n" 1620 " perf buildid-cache -vu vmlinux\n\n" 1621 "or:\n\n" 1622 " --vmlinux vmlinux\n", build_id_msg ?: ""); 1623 } 1624 break; 1625 case SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF: 1626 scnprintf(buf, buflen, "Please link with binutils's libopcode to enable BPF annotation"); 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 1643 if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && 1644 !dso__is_kcore(dso)) 1645 return SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX; 1646 1647 build_id_filename = dso__build_id_filename(dso, NULL, 0, false); 1648 if (build_id_filename) { 1649 __symbol__join_symfs(filename, filename_size, build_id_filename); 1650 free(build_id_filename); 1651 } else { 1652 if (dso->has_build_id) 1653 return ENOMEM; 1654 goto fallback; 1655 } 1656 1657 build_id_path = strdup(filename); 1658 if (!build_id_path) 1659 return -1; 1660 1661 /* 1662 * old style build-id cache has name of XX/XXXXXXX.. while 1663 * new style has XX/XXXXXXX../{elf,kallsyms,vdso}. 1664 * extract the build-id part of dirname in the new style only. 1665 */ 1666 pos = strrchr(build_id_path, '/'); 1667 if (pos && strlen(pos) < SBUILD_ID_SIZE - 2) 1668 dirname(build_id_path); 1669 1670 if (dso__is_kcore(dso) || 1671 readlink(build_id_path, linkname, sizeof(linkname)) < 0 || 1672 strstr(linkname, DSO__NAME_KALLSYMS) || 1673 access(filename, R_OK)) { 1674 fallback: 1675 /* 1676 * If we don't have build-ids or the build-id file isn't in the 1677 * cache, or is just a kallsyms file, well, lets hope that this 1678 * DSO is the same as when 'perf record' ran. 1679 */ 1680 __symbol__join_symfs(filename, filename_size, dso->long_name); 1681 } 1682 1683 free(build_id_path); 1684 return 0; 1685 } 1686 1687 #if defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT) 1688 #define PACKAGE "perf" 1689 #include <bfd.h> 1690 #include <dis-asm.h> 1691 1692 static int symbol__disassemble_bpf(struct symbol *sym, 1693 struct annotate_args *args) 1694 { 1695 struct annotation *notes = symbol__annotation(sym); 1696 struct annotation_options *opts = args->options; 1697 struct bpf_prog_info_linear *info_linear; 1698 struct bpf_prog_linfo *prog_linfo = NULL; 1699 struct bpf_prog_info_node *info_node; 1700 int len = sym->end - sym->start; 1701 disassembler_ftype disassemble; 1702 struct map *map = args->ms.map; 1703 struct disassemble_info info; 1704 struct dso *dso = map->dso; 1705 int pc = 0, count, sub_id; 1706 struct btf *btf = NULL; 1707 char tpath[PATH_MAX]; 1708 size_t buf_size; 1709 int nr_skip = 0; 1710 int ret = -1; 1711 char *buf; 1712 bfd *bfdf; 1713 FILE *s; 1714 1715 if (dso->binary_type != DSO_BINARY_TYPE__BPF_PROG_INFO) 1716 return -1; 1717 1718 pr_debug("%s: handling sym %s addr %" PRIx64 " len %" PRIx64 "\n", __func__, 1719 sym->name, sym->start, sym->end - sym->start); 1720 1721 memset(tpath, 0, sizeof(tpath)); 1722 perf_exe(tpath, sizeof(tpath)); 1723 1724 bfdf = bfd_openr(tpath, NULL); 1725 assert(bfdf); 1726 assert(bfd_check_format(bfdf, bfd_object)); 1727 1728 s = open_memstream(&buf, &buf_size); 1729 if (!s) 1730 goto out; 1731 init_disassemble_info(&info, s, 1732 (fprintf_ftype) fprintf); 1733 1734 info.arch = bfd_get_arch(bfdf); 1735 info.mach = bfd_get_mach(bfdf); 1736 1737 info_node = perf_env__find_bpf_prog_info(dso->bpf_prog.env, 1738 dso->bpf_prog.id); 1739 if (!info_node) 1740 goto out; 1741 info_linear = info_node->info_linear; 1742 sub_id = dso->bpf_prog.sub_id; 1743 1744 info.buffer = (void *)(uintptr_t)(info_linear->info.jited_prog_insns); 1745 info.buffer_length = info_linear->info.jited_prog_len; 1746 1747 if (info_linear->info.nr_line_info) 1748 prog_linfo = bpf_prog_linfo__new(&info_linear->info); 1749 1750 if (info_linear->info.btf_id) { 1751 struct btf_node *node; 1752 1753 node = perf_env__find_btf(dso->bpf_prog.env, 1754 info_linear->info.btf_id); 1755 if (node) 1756 btf = btf__new((__u8 *)(node->data), 1757 node->data_size); 1758 } 1759 1760 disassemble_init_for_target(&info); 1761 1762 #ifdef DISASM_FOUR_ARGS_SIGNATURE 1763 disassemble = disassembler(info.arch, 1764 bfd_big_endian(bfdf), 1765 info.mach, 1766 bfdf); 1767 #else 1768 disassemble = disassembler(bfdf); 1769 #endif 1770 assert(disassemble); 1771 1772 fflush(s); 1773 do { 1774 const struct bpf_line_info *linfo = NULL; 1775 struct disasm_line *dl; 1776 size_t prev_buf_size; 1777 const char *srcline; 1778 u64 addr; 1779 1780 addr = pc + ((u64 *)(uintptr_t)(info_linear->info.jited_ksyms))[sub_id]; 1781 count = disassemble(pc, &info); 1782 1783 if (prog_linfo) 1784 linfo = bpf_prog_linfo__lfind_addr_func(prog_linfo, 1785 addr, sub_id, 1786 nr_skip); 1787 1788 if (linfo && btf) { 1789 srcline = btf__name_by_offset(btf, linfo->line_off); 1790 nr_skip++; 1791 } else 1792 srcline = NULL; 1793 1794 fprintf(s, "\n"); 1795 prev_buf_size = buf_size; 1796 fflush(s); 1797 1798 if (!opts->hide_src_code && srcline) { 1799 args->offset = -1; 1800 args->line = strdup(srcline); 1801 args->line_nr = 0; 1802 args->ms.sym = sym; 1803 dl = disasm_line__new(args); 1804 if (dl) { 1805 annotation_line__add(&dl->al, 1806 ¬es->src->source); 1807 } 1808 } 1809 1810 args->offset = pc; 1811 args->line = buf + prev_buf_size; 1812 args->line_nr = 0; 1813 args->ms.sym = sym; 1814 dl = disasm_line__new(args); 1815 if (dl) 1816 annotation_line__add(&dl->al, ¬es->src->source); 1817 1818 pc += count; 1819 } while (count > 0 && pc < len); 1820 1821 ret = 0; 1822 out: 1823 free(prog_linfo); 1824 free(btf); 1825 fclose(s); 1826 bfd_close(bfdf); 1827 return ret; 1828 } 1829 #else // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT) 1830 static int symbol__disassemble_bpf(struct symbol *sym __maybe_unused, 1831 struct annotate_args *args __maybe_unused) 1832 { 1833 return SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF; 1834 } 1835 #endif // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT) 1836 1837 static int symbol__disassemble(struct symbol *sym, struct annotate_args *args) 1838 { 1839 struct annotation_options *opts = args->options; 1840 struct map *map = args->ms.map; 1841 struct dso *dso = map->dso; 1842 char *command; 1843 FILE *file; 1844 char symfs_filename[PATH_MAX]; 1845 struct kcore_extract kce; 1846 bool delete_extract = false; 1847 bool decomp = false; 1848 int stdout_fd[2]; 1849 int lineno = 0; 1850 int nline; 1851 pid_t pid; 1852 int err = dso__disassemble_filename(dso, symfs_filename, sizeof(symfs_filename)); 1853 1854 if (err) 1855 return err; 1856 1857 pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__, 1858 symfs_filename, sym->name, map->unmap_ip(map, sym->start), 1859 map->unmap_ip(map, sym->end)); 1860 1861 pr_debug("annotating [%p] %30s : [%p] %30s\n", 1862 dso, dso->long_name, sym, sym->name); 1863 1864 if (dso->binary_type == DSO_BINARY_TYPE__BPF_PROG_INFO) { 1865 return symbol__disassemble_bpf(sym, args); 1866 } else if (dso__is_kcore(dso)) { 1867 kce.kcore_filename = symfs_filename; 1868 kce.addr = map__rip_2objdump(map, sym->start); 1869 kce.offs = sym->start; 1870 kce.len = sym->end - sym->start; 1871 if (!kcore_extract__create(&kce)) { 1872 delete_extract = true; 1873 strlcpy(symfs_filename, kce.extract_filename, 1874 sizeof(symfs_filename)); 1875 } 1876 } else if (dso__needs_decompress(dso)) { 1877 char tmp[KMOD_DECOMP_LEN]; 1878 1879 if (dso__decompress_kmodule_path(dso, symfs_filename, 1880 tmp, sizeof(tmp)) < 0) 1881 goto out; 1882 1883 decomp = true; 1884 strcpy(symfs_filename, tmp); 1885 } 1886 1887 err = asprintf(&command, 1888 "%s %s%s --start-address=0x%016" PRIx64 1889 " --stop-address=0x%016" PRIx64 1890 " -l -d %s %s -C \"$1\" 2>/dev/null|grep -v \"$1:\"|expand", 1891 opts->objdump_path ?: "objdump", 1892 opts->disassembler_style ? "-M " : "", 1893 opts->disassembler_style ?: "", 1894 map__rip_2objdump(map, sym->start), 1895 map__rip_2objdump(map, sym->end), 1896 opts->show_asm_raw ? "" : "--no-show-raw", 1897 opts->annotate_src ? "-S" : ""); 1898 1899 if (err < 0) { 1900 pr_err("Failure allocating memory for the command to run\n"); 1901 goto out_remove_tmp; 1902 } 1903 1904 pr_debug("Executing: %s\n", command); 1905 1906 err = -1; 1907 if (pipe(stdout_fd) < 0) { 1908 pr_err("Failure creating the pipe to run %s\n", command); 1909 goto out_free_command; 1910 } 1911 1912 pid = fork(); 1913 if (pid < 0) { 1914 pr_err("Failure forking to run %s\n", command); 1915 goto out_close_stdout; 1916 } 1917 1918 if (pid == 0) { 1919 close(stdout_fd[0]); 1920 dup2(stdout_fd[1], 1); 1921 close(stdout_fd[1]); 1922 execl("/bin/sh", "sh", "-c", command, "--", symfs_filename, 1923 NULL); 1924 perror(command); 1925 exit(-1); 1926 } 1927 1928 close(stdout_fd[1]); 1929 1930 file = fdopen(stdout_fd[0], "r"); 1931 if (!file) { 1932 pr_err("Failure creating FILE stream for %s\n", command); 1933 /* 1934 * If we were using debug info should retry with 1935 * original binary. 1936 */ 1937 goto out_free_command; 1938 } 1939 1940 nline = 0; 1941 while (!feof(file)) { 1942 /* 1943 * The source code line number (lineno) needs to be kept in 1944 * across calls to symbol__parse_objdump_line(), so that it 1945 * can associate it with the instructions till the next one. 1946 * See disasm_line__new() and struct disasm_line::line_nr. 1947 */ 1948 if (symbol__parse_objdump_line(sym, file, args, &lineno) < 0) 1949 break; 1950 nline++; 1951 } 1952 1953 if (nline == 0) 1954 pr_err("No output from %s\n", command); 1955 1956 /* 1957 * kallsyms does not have symbol sizes so there may a nop at the end. 1958 * Remove it. 1959 */ 1960 if (dso__is_kcore(dso)) 1961 delete_last_nop(sym); 1962 1963 fclose(file); 1964 err = 0; 1965 out_free_command: 1966 free(command); 1967 out_remove_tmp: 1968 close(stdout_fd[0]); 1969 1970 if (decomp) 1971 unlink(symfs_filename); 1972 1973 if (delete_extract) 1974 kcore_extract__delete(&kce); 1975 out: 1976 return err; 1977 1978 out_close_stdout: 1979 close(stdout_fd[1]); 1980 goto out_free_command; 1981 } 1982 1983 static void calc_percent(struct sym_hist *sym_hist, 1984 struct hists *hists, 1985 struct annotation_data *data, 1986 s64 offset, s64 end) 1987 { 1988 unsigned int hits = 0; 1989 u64 period = 0; 1990 1991 while (offset < end) { 1992 hits += sym_hist->addr[offset].nr_samples; 1993 period += sym_hist->addr[offset].period; 1994 ++offset; 1995 } 1996 1997 if (sym_hist->nr_samples) { 1998 data->he.period = period; 1999 data->he.nr_samples = hits; 2000 data->percent[PERCENT_HITS_LOCAL] = 100.0 * hits / sym_hist->nr_samples; 2001 } 2002 2003 if (hists->stats.nr_non_filtered_samples) 2004 data->percent[PERCENT_HITS_GLOBAL] = 100.0 * hits / hists->stats.nr_non_filtered_samples; 2005 2006 if (sym_hist->period) 2007 data->percent[PERCENT_PERIOD_LOCAL] = 100.0 * period / sym_hist->period; 2008 2009 if (hists->stats.total_period) 2010 data->percent[PERCENT_PERIOD_GLOBAL] = 100.0 * period / hists->stats.total_period; 2011 } 2012 2013 static void annotation__calc_percent(struct annotation *notes, 2014 struct perf_evsel *leader, s64 len) 2015 { 2016 struct annotation_line *al, *next; 2017 struct perf_evsel *evsel; 2018 2019 list_for_each_entry(al, ¬es->src->source, node) { 2020 s64 end; 2021 int i = 0; 2022 2023 if (al->offset == -1) 2024 continue; 2025 2026 next = annotation_line__next(al, ¬es->src->source); 2027 end = next ? next->offset : len; 2028 2029 for_each_group_evsel(evsel, leader) { 2030 struct hists *hists = evsel__hists(evsel); 2031 struct annotation_data *data; 2032 struct sym_hist *sym_hist; 2033 2034 BUG_ON(i >= al->data_nr); 2035 2036 sym_hist = annotation__histogram(notes, evsel->idx); 2037 data = &al->data[i++]; 2038 2039 calc_percent(sym_hist, hists, data, al->offset, end); 2040 } 2041 } 2042 } 2043 2044 void symbol__calc_percent(struct symbol *sym, struct perf_evsel *evsel) 2045 { 2046 struct annotation *notes = symbol__annotation(sym); 2047 2048 annotation__calc_percent(notes, evsel, symbol__size(sym)); 2049 } 2050 2051 int symbol__annotate(struct symbol *sym, struct map *map, 2052 struct perf_evsel *evsel, size_t privsize, 2053 struct annotation_options *options, 2054 struct arch **parch) 2055 { 2056 struct annotation *notes = symbol__annotation(sym); 2057 struct annotate_args args = { 2058 .privsize = privsize, 2059 .evsel = evsel, 2060 .options = options, 2061 }; 2062 struct perf_env *env = perf_evsel__env(evsel); 2063 const char *arch_name = perf_env__arch(env); 2064 struct arch *arch; 2065 int err; 2066 2067 if (!arch_name) 2068 return -1; 2069 2070 args.arch = arch = arch__find(arch_name); 2071 if (arch == NULL) 2072 return -ENOTSUP; 2073 2074 if (parch) 2075 *parch = arch; 2076 2077 if (arch->init) { 2078 err = arch->init(arch, env ? env->cpuid : NULL); 2079 if (err) { 2080 pr_err("%s: failed to initialize %s arch priv area\n", __func__, arch->name); 2081 return err; 2082 } 2083 } 2084 2085 args.ms.map = map; 2086 args.ms.sym = sym; 2087 notes->start = map__rip_2objdump(map, sym->start); 2088 2089 return symbol__disassemble(sym, &args); 2090 } 2091 2092 static void insert_source_line(struct rb_root *root, struct annotation_line *al, 2093 struct annotation_options *opts) 2094 { 2095 struct annotation_line *iter; 2096 struct rb_node **p = &root->rb_node; 2097 struct rb_node *parent = NULL; 2098 int i, ret; 2099 2100 while (*p != NULL) { 2101 parent = *p; 2102 iter = rb_entry(parent, struct annotation_line, rb_node); 2103 2104 ret = strcmp(iter->path, al->path); 2105 if (ret == 0) { 2106 for (i = 0; i < al->data_nr; i++) { 2107 iter->data[i].percent_sum += annotation_data__percent(&al->data[i], 2108 opts->percent_type); 2109 } 2110 return; 2111 } 2112 2113 if (ret < 0) 2114 p = &(*p)->rb_left; 2115 else 2116 p = &(*p)->rb_right; 2117 } 2118 2119 for (i = 0; i < al->data_nr; i++) { 2120 al->data[i].percent_sum = annotation_data__percent(&al->data[i], 2121 opts->percent_type); 2122 } 2123 2124 rb_link_node(&al->rb_node, parent, p); 2125 rb_insert_color(&al->rb_node, root); 2126 } 2127 2128 static int cmp_source_line(struct annotation_line *a, struct annotation_line *b) 2129 { 2130 int i; 2131 2132 for (i = 0; i < a->data_nr; i++) { 2133 if (a->data[i].percent_sum == b->data[i].percent_sum) 2134 continue; 2135 return a->data[i].percent_sum > b->data[i].percent_sum; 2136 } 2137 2138 return 0; 2139 } 2140 2141 static void __resort_source_line(struct rb_root *root, struct annotation_line *al) 2142 { 2143 struct annotation_line *iter; 2144 struct rb_node **p = &root->rb_node; 2145 struct rb_node *parent = NULL; 2146 2147 while (*p != NULL) { 2148 parent = *p; 2149 iter = rb_entry(parent, struct annotation_line, rb_node); 2150 2151 if (cmp_source_line(al, iter)) 2152 p = &(*p)->rb_left; 2153 else 2154 p = &(*p)->rb_right; 2155 } 2156 2157 rb_link_node(&al->rb_node, parent, p); 2158 rb_insert_color(&al->rb_node, root); 2159 } 2160 2161 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root) 2162 { 2163 struct annotation_line *al; 2164 struct rb_node *node; 2165 2166 node = rb_first(src_root); 2167 while (node) { 2168 struct rb_node *next; 2169 2170 al = rb_entry(node, struct annotation_line, rb_node); 2171 next = rb_next(node); 2172 rb_erase(node, src_root); 2173 2174 __resort_source_line(dest_root, al); 2175 node = next; 2176 } 2177 } 2178 2179 static void print_summary(struct rb_root *root, const char *filename) 2180 { 2181 struct annotation_line *al; 2182 struct rb_node *node; 2183 2184 printf("\nSorted summary for file %s\n", filename); 2185 printf("----------------------------------------------\n\n"); 2186 2187 if (RB_EMPTY_ROOT(root)) { 2188 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN); 2189 return; 2190 } 2191 2192 node = rb_first(root); 2193 while (node) { 2194 double percent, percent_max = 0.0; 2195 const char *color; 2196 char *path; 2197 int i; 2198 2199 al = rb_entry(node, struct annotation_line, rb_node); 2200 for (i = 0; i < al->data_nr; i++) { 2201 percent = al->data[i].percent_sum; 2202 color = get_percent_color(percent); 2203 color_fprintf(stdout, color, " %7.2f", percent); 2204 2205 if (percent > percent_max) 2206 percent_max = percent; 2207 } 2208 2209 path = al->path; 2210 color = get_percent_color(percent_max); 2211 color_fprintf(stdout, color, " %s\n", path); 2212 2213 node = rb_next(node); 2214 } 2215 } 2216 2217 static void symbol__annotate_hits(struct symbol *sym, struct perf_evsel *evsel) 2218 { 2219 struct annotation *notes = symbol__annotation(sym); 2220 struct sym_hist *h = annotation__histogram(notes, evsel->idx); 2221 u64 len = symbol__size(sym), offset; 2222 2223 for (offset = 0; offset < len; ++offset) 2224 if (h->addr[offset].nr_samples != 0) 2225 printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2, 2226 sym->start + offset, h->addr[offset].nr_samples); 2227 printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->nr_samples", h->nr_samples); 2228 } 2229 2230 static int annotated_source__addr_fmt_width(struct list_head *lines, u64 start) 2231 { 2232 char bf[32]; 2233 struct annotation_line *line; 2234 2235 list_for_each_entry_reverse(line, lines, node) { 2236 if (line->offset != -1) 2237 return scnprintf(bf, sizeof(bf), "%" PRIx64, start + line->offset); 2238 } 2239 2240 return 0; 2241 } 2242 2243 int symbol__annotate_printf(struct symbol *sym, struct map *map, 2244 struct perf_evsel *evsel, 2245 struct annotation_options *opts) 2246 { 2247 struct dso *dso = map->dso; 2248 char *filename; 2249 const char *d_filename; 2250 const char *evsel_name = perf_evsel__name(evsel); 2251 struct annotation *notes = symbol__annotation(sym); 2252 struct sym_hist *h = annotation__histogram(notes, evsel->idx); 2253 struct annotation_line *pos, *queue = NULL; 2254 u64 start = map__rip_2objdump(map, sym->start); 2255 int printed = 2, queue_len = 0, addr_fmt_width; 2256 int more = 0; 2257 bool context = opts->context; 2258 u64 len; 2259 int width = symbol_conf.show_total_period ? 12 : 8; 2260 int graph_dotted_len; 2261 char buf[512]; 2262 2263 filename = strdup(dso->long_name); 2264 if (!filename) 2265 return -ENOMEM; 2266 2267 if (opts->full_path) 2268 d_filename = filename; 2269 else 2270 d_filename = basename(filename); 2271 2272 len = symbol__size(sym); 2273 2274 if (perf_evsel__is_group_event(evsel)) { 2275 width *= evsel->nr_members; 2276 perf_evsel__group_desc(evsel, buf, sizeof(buf)); 2277 evsel_name = buf; 2278 } 2279 2280 graph_dotted_len = printf(" %-*.*s| Source code & Disassembly of %s for %s (%" PRIu64 " samples, " 2281 "percent: %s)\n", 2282 width, width, symbol_conf.show_total_period ? "Period" : 2283 symbol_conf.show_nr_samples ? "Samples" : "Percent", 2284 d_filename, evsel_name, h->nr_samples, 2285 percent_type_str(opts->percent_type)); 2286 2287 printf("%-*.*s----\n", 2288 graph_dotted_len, graph_dotted_len, graph_dotted_line); 2289 2290 if (verbose > 0) 2291 symbol__annotate_hits(sym, evsel); 2292 2293 addr_fmt_width = annotated_source__addr_fmt_width(¬es->src->source, start); 2294 2295 list_for_each_entry(pos, ¬es->src->source, node) { 2296 int err; 2297 2298 if (context && queue == NULL) { 2299 queue = pos; 2300 queue_len = 0; 2301 } 2302 2303 err = annotation_line__print(pos, sym, start, evsel, len, 2304 opts->min_pcnt, printed, opts->max_lines, 2305 queue, addr_fmt_width, opts->percent_type); 2306 2307 switch (err) { 2308 case 0: 2309 ++printed; 2310 if (context) { 2311 printed += queue_len; 2312 queue = NULL; 2313 queue_len = 0; 2314 } 2315 break; 2316 case 1: 2317 /* filtered by max_lines */ 2318 ++more; 2319 break; 2320 case -1: 2321 default: 2322 /* 2323 * Filtered by min_pcnt or non IP lines when 2324 * context != 0 2325 */ 2326 if (!context) 2327 break; 2328 if (queue_len == context) 2329 queue = list_entry(queue->node.next, typeof(*queue), node); 2330 else 2331 ++queue_len; 2332 break; 2333 } 2334 } 2335 2336 free(filename); 2337 2338 return more; 2339 } 2340 2341 static void FILE__set_percent_color(void *fp __maybe_unused, 2342 double percent __maybe_unused, 2343 bool current __maybe_unused) 2344 { 2345 } 2346 2347 static int FILE__set_jumps_percent_color(void *fp __maybe_unused, 2348 int nr __maybe_unused, bool current __maybe_unused) 2349 { 2350 return 0; 2351 } 2352 2353 static int FILE__set_color(void *fp __maybe_unused, int color __maybe_unused) 2354 { 2355 return 0; 2356 } 2357 2358 static void FILE__printf(void *fp, const char *fmt, ...) 2359 { 2360 va_list args; 2361 2362 va_start(args, fmt); 2363 vfprintf(fp, fmt, args); 2364 va_end(args); 2365 } 2366 2367 static void FILE__write_graph(void *fp, int graph) 2368 { 2369 const char *s; 2370 switch (graph) { 2371 2372 case DARROW_CHAR: s = "↓"; break; 2373 case UARROW_CHAR: s = "↑"; break; 2374 case LARROW_CHAR: s = "←"; break; 2375 case RARROW_CHAR: s = "→"; break; 2376 default: s = "?"; break; 2377 } 2378 2379 fputs(s, fp); 2380 } 2381 2382 static int symbol__annotate_fprintf2(struct symbol *sym, FILE *fp, 2383 struct annotation_options *opts) 2384 { 2385 struct annotation *notes = symbol__annotation(sym); 2386 struct annotation_write_ops wops = { 2387 .first_line = true, 2388 .obj = fp, 2389 .set_color = FILE__set_color, 2390 .set_percent_color = FILE__set_percent_color, 2391 .set_jumps_percent_color = FILE__set_jumps_percent_color, 2392 .printf = FILE__printf, 2393 .write_graph = FILE__write_graph, 2394 }; 2395 struct annotation_line *al; 2396 2397 list_for_each_entry(al, ¬es->src->source, node) { 2398 if (annotation_line__filter(al, notes)) 2399 continue; 2400 annotation_line__write(al, notes, &wops, opts); 2401 fputc('\n', fp); 2402 wops.first_line = false; 2403 } 2404 2405 return 0; 2406 } 2407 2408 int map_symbol__annotation_dump(struct map_symbol *ms, struct perf_evsel *evsel, 2409 struct annotation_options *opts) 2410 { 2411 const char *ev_name = perf_evsel__name(evsel); 2412 char buf[1024]; 2413 char *filename; 2414 int err = -1; 2415 FILE *fp; 2416 2417 if (asprintf(&filename, "%s.annotation", ms->sym->name) < 0) 2418 return -1; 2419 2420 fp = fopen(filename, "w"); 2421 if (fp == NULL) 2422 goto out_free_filename; 2423 2424 if (perf_evsel__is_group_event(evsel)) { 2425 perf_evsel__group_desc(evsel, buf, sizeof(buf)); 2426 ev_name = buf; 2427 } 2428 2429 fprintf(fp, "%s() %s\nEvent: %s\n\n", 2430 ms->sym->name, ms->map->dso->long_name, ev_name); 2431 symbol__annotate_fprintf2(ms->sym, fp, opts); 2432 2433 fclose(fp); 2434 err = 0; 2435 out_free_filename: 2436 free(filename); 2437 return err; 2438 } 2439 2440 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx) 2441 { 2442 struct annotation *notes = symbol__annotation(sym); 2443 struct sym_hist *h = annotation__histogram(notes, evidx); 2444 2445 memset(h, 0, notes->src->sizeof_sym_hist); 2446 } 2447 2448 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx) 2449 { 2450 struct annotation *notes = symbol__annotation(sym); 2451 struct sym_hist *h = annotation__histogram(notes, evidx); 2452 int len = symbol__size(sym), offset; 2453 2454 h->nr_samples = 0; 2455 for (offset = 0; offset < len; ++offset) { 2456 h->addr[offset].nr_samples = h->addr[offset].nr_samples * 7 / 8; 2457 h->nr_samples += h->addr[offset].nr_samples; 2458 } 2459 } 2460 2461 void annotated_source__purge(struct annotated_source *as) 2462 { 2463 struct annotation_line *al, *n; 2464 2465 list_for_each_entry_safe(al, n, &as->source, node) { 2466 list_del_init(&al->node); 2467 disasm_line__free(disasm_line(al)); 2468 } 2469 } 2470 2471 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp) 2472 { 2473 size_t printed; 2474 2475 if (dl->al.offset == -1) 2476 return fprintf(fp, "%s\n", dl->al.line); 2477 2478 printed = fprintf(fp, "%#" PRIx64 " %s", dl->al.offset, dl->ins.name); 2479 2480 if (dl->ops.raw[0] != '\0') { 2481 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ", 2482 dl->ops.raw); 2483 } 2484 2485 return printed + fprintf(fp, "\n"); 2486 } 2487 2488 size_t disasm__fprintf(struct list_head *head, FILE *fp) 2489 { 2490 struct disasm_line *pos; 2491 size_t printed = 0; 2492 2493 list_for_each_entry(pos, head, al.node) 2494 printed += disasm_line__fprintf(pos, fp); 2495 2496 return printed; 2497 } 2498 2499 bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym) 2500 { 2501 if (!dl || !dl->ins.ops || !ins__is_jump(&dl->ins) || 2502 !disasm_line__has_local_offset(dl) || dl->ops.target.offset < 0 || 2503 dl->ops.target.offset >= (s64)symbol__size(sym)) 2504 return false; 2505 2506 return true; 2507 } 2508 2509 void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym) 2510 { 2511 u64 offset, size = symbol__size(sym); 2512 2513 /* PLT symbols contain external offsets */ 2514 if (strstr(sym->name, "@plt")) 2515 return; 2516 2517 for (offset = 0; offset < size; ++offset) { 2518 struct annotation_line *al = notes->offsets[offset]; 2519 struct disasm_line *dl; 2520 2521 dl = disasm_line(al); 2522 2523 if (!disasm_line__is_valid_local_jump(dl, sym)) 2524 continue; 2525 2526 al = notes->offsets[dl->ops.target.offset]; 2527 2528 /* 2529 * FIXME: Oops, no jump target? Buggy disassembler? Or do we 2530 * have to adjust to the previous offset? 2531 */ 2532 if (al == NULL) 2533 continue; 2534 2535 if (++al->jump_sources > notes->max_jump_sources) 2536 notes->max_jump_sources = al->jump_sources; 2537 2538 ++notes->nr_jumps; 2539 } 2540 } 2541 2542 void annotation__set_offsets(struct annotation *notes, s64 size) 2543 { 2544 struct annotation_line *al; 2545 2546 notes->max_line_len = 0; 2547 2548 list_for_each_entry(al, ¬es->src->source, node) { 2549 size_t line_len = strlen(al->line); 2550 2551 if (notes->max_line_len < line_len) 2552 notes->max_line_len = line_len; 2553 al->idx = notes->nr_entries++; 2554 if (al->offset != -1) { 2555 al->idx_asm = notes->nr_asm_entries++; 2556 /* 2557 * FIXME: short term bandaid to cope with assembly 2558 * routines that comes with labels in the same column 2559 * as the address in objdump, sigh. 2560 * 2561 * E.g. copy_user_generic_unrolled 2562 */ 2563 if (al->offset < size) 2564 notes->offsets[al->offset] = al; 2565 } else 2566 al->idx_asm = -1; 2567 } 2568 } 2569 2570 static inline int width_jumps(int n) 2571 { 2572 if (n >= 100) 2573 return 5; 2574 if (n / 10) 2575 return 2; 2576 return 1; 2577 } 2578 2579 static int annotation__max_ins_name(struct annotation *notes) 2580 { 2581 int max_name = 0, len; 2582 struct annotation_line *al; 2583 2584 list_for_each_entry(al, ¬es->src->source, node) { 2585 if (al->offset == -1) 2586 continue; 2587 2588 len = strlen(disasm_line(al)->ins.name); 2589 if (max_name < len) 2590 max_name = len; 2591 } 2592 2593 return max_name; 2594 } 2595 2596 void annotation__init_column_widths(struct annotation *notes, struct symbol *sym) 2597 { 2598 notes->widths.addr = notes->widths.target = 2599 notes->widths.min_addr = hex_width(symbol__size(sym)); 2600 notes->widths.max_addr = hex_width(sym->end); 2601 notes->widths.jumps = width_jumps(notes->max_jump_sources); 2602 notes->widths.max_ins_name = annotation__max_ins_name(notes); 2603 } 2604 2605 void annotation__update_column_widths(struct annotation *notes) 2606 { 2607 if (notes->options->use_offset) 2608 notes->widths.target = notes->widths.min_addr; 2609 else 2610 notes->widths.target = notes->widths.max_addr; 2611 2612 notes->widths.addr = notes->widths.target; 2613 2614 if (notes->options->show_nr_jumps) 2615 notes->widths.addr += notes->widths.jumps + 1; 2616 } 2617 2618 static void annotation__calc_lines(struct annotation *notes, struct map *map, 2619 struct rb_root *root, 2620 struct annotation_options *opts) 2621 { 2622 struct annotation_line *al; 2623 struct rb_root tmp_root = RB_ROOT; 2624 2625 list_for_each_entry(al, ¬es->src->source, node) { 2626 double percent_max = 0.0; 2627 int i; 2628 2629 for (i = 0; i < al->data_nr; i++) { 2630 double percent; 2631 2632 percent = annotation_data__percent(&al->data[i], 2633 opts->percent_type); 2634 2635 if (percent > percent_max) 2636 percent_max = percent; 2637 } 2638 2639 if (percent_max <= 0.5) 2640 continue; 2641 2642 al->path = get_srcline(map->dso, notes->start + al->offset, NULL, 2643 false, true, notes->start + al->offset); 2644 insert_source_line(&tmp_root, al, opts); 2645 } 2646 2647 resort_source_line(root, &tmp_root); 2648 } 2649 2650 static void symbol__calc_lines(struct symbol *sym, struct map *map, 2651 struct rb_root *root, 2652 struct annotation_options *opts) 2653 { 2654 struct annotation *notes = symbol__annotation(sym); 2655 2656 annotation__calc_lines(notes, map, root, opts); 2657 } 2658 2659 int symbol__tty_annotate2(struct symbol *sym, struct map *map, 2660 struct perf_evsel *evsel, 2661 struct annotation_options *opts) 2662 { 2663 struct dso *dso = map->dso; 2664 struct rb_root source_line = RB_ROOT; 2665 struct hists *hists = evsel__hists(evsel); 2666 char buf[1024]; 2667 2668 if (symbol__annotate2(sym, map, evsel, opts, NULL) < 0) 2669 return -1; 2670 2671 if (opts->print_lines) { 2672 srcline_full_filename = opts->full_path; 2673 symbol__calc_lines(sym, map, &source_line, opts); 2674 print_summary(&source_line, dso->long_name); 2675 } 2676 2677 hists__scnprintf_title(hists, buf, sizeof(buf)); 2678 fprintf(stdout, "%s, [percent: %s]\n%s() %s\n", 2679 buf, percent_type_str(opts->percent_type), sym->name, dso->long_name); 2680 symbol__annotate_fprintf2(sym, stdout, opts); 2681 2682 annotated_source__purge(symbol__annotation(sym)->src); 2683 2684 return 0; 2685 } 2686 2687 int symbol__tty_annotate(struct symbol *sym, struct map *map, 2688 struct perf_evsel *evsel, 2689 struct annotation_options *opts) 2690 { 2691 struct dso *dso = map->dso; 2692 struct rb_root source_line = RB_ROOT; 2693 2694 if (symbol__annotate(sym, map, evsel, 0, opts, NULL) < 0) 2695 return -1; 2696 2697 symbol__calc_percent(sym, evsel); 2698 2699 if (opts->print_lines) { 2700 srcline_full_filename = opts->full_path; 2701 symbol__calc_lines(sym, map, &source_line, opts); 2702 print_summary(&source_line, dso->long_name); 2703 } 2704 2705 symbol__annotate_printf(sym, map, evsel, opts); 2706 2707 annotated_source__purge(symbol__annotation(sym)->src); 2708 2709 return 0; 2710 } 2711 2712 bool ui__has_annotation(void) 2713 { 2714 return use_browser == 1 && perf_hpp_list.sym; 2715 } 2716 2717 2718 static double annotation_line__max_percent(struct annotation_line *al, 2719 struct annotation *notes, 2720 unsigned int percent_type) 2721 { 2722 double percent_max = 0.0; 2723 int i; 2724 2725 for (i = 0; i < notes->nr_events; i++) { 2726 double percent; 2727 2728 percent = annotation_data__percent(&al->data[i], 2729 percent_type); 2730 2731 if (percent > percent_max) 2732 percent_max = percent; 2733 } 2734 2735 return percent_max; 2736 } 2737 2738 static void disasm_line__write(struct disasm_line *dl, struct annotation *notes, 2739 void *obj, char *bf, size_t size, 2740 void (*obj__printf)(void *obj, const char *fmt, ...), 2741 void (*obj__write_graph)(void *obj, int graph)) 2742 { 2743 if (dl->ins.ops && dl->ins.ops->scnprintf) { 2744 if (ins__is_jump(&dl->ins)) { 2745 bool fwd; 2746 2747 if (dl->ops.target.outside) 2748 goto call_like; 2749 fwd = dl->ops.target.offset > dl->al.offset; 2750 obj__write_graph(obj, fwd ? DARROW_CHAR : UARROW_CHAR); 2751 obj__printf(obj, " "); 2752 } else if (ins__is_call(&dl->ins)) { 2753 call_like: 2754 obj__write_graph(obj, RARROW_CHAR); 2755 obj__printf(obj, " "); 2756 } else if (ins__is_ret(&dl->ins)) { 2757 obj__write_graph(obj, LARROW_CHAR); 2758 obj__printf(obj, " "); 2759 } else { 2760 obj__printf(obj, " "); 2761 } 2762 } else { 2763 obj__printf(obj, " "); 2764 } 2765 2766 disasm_line__scnprintf(dl, bf, size, !notes->options->use_offset, notes->widths.max_ins_name); 2767 } 2768 2769 static void ipc_coverage_string(char *bf, int size, struct annotation *notes) 2770 { 2771 double ipc = 0.0, coverage = 0.0; 2772 2773 if (notes->hit_cycles) 2774 ipc = notes->hit_insn / ((double)notes->hit_cycles); 2775 2776 if (notes->total_insn) { 2777 coverage = notes->cover_insn * 100.0 / 2778 ((double)notes->total_insn); 2779 } 2780 2781 scnprintf(bf, size, "(Average IPC: %.2f, IPC Coverage: %.1f%%)", 2782 ipc, coverage); 2783 } 2784 2785 static void __annotation_line__write(struct annotation_line *al, struct annotation *notes, 2786 bool first_line, bool current_entry, bool change_color, int width, 2787 void *obj, unsigned int percent_type, 2788 int (*obj__set_color)(void *obj, int color), 2789 void (*obj__set_percent_color)(void *obj, double percent, bool current), 2790 int (*obj__set_jumps_percent_color)(void *obj, int nr, bool current), 2791 void (*obj__printf)(void *obj, const char *fmt, ...), 2792 void (*obj__write_graph)(void *obj, int graph)) 2793 2794 { 2795 double percent_max = annotation_line__max_percent(al, notes, percent_type); 2796 int pcnt_width = annotation__pcnt_width(notes), 2797 cycles_width = annotation__cycles_width(notes); 2798 bool show_title = false; 2799 char bf[256]; 2800 int printed; 2801 2802 if (first_line && (al->offset == -1 || percent_max == 0.0)) { 2803 if (notes->have_cycles) { 2804 if (al->ipc == 0.0 && al->cycles == 0) 2805 show_title = true; 2806 } else 2807 show_title = true; 2808 } 2809 2810 if (al->offset != -1 && percent_max != 0.0) { 2811 int i; 2812 2813 for (i = 0; i < notes->nr_events; i++) { 2814 double percent; 2815 2816 percent = annotation_data__percent(&al->data[i], percent_type); 2817 2818 obj__set_percent_color(obj, percent, current_entry); 2819 if (notes->options->show_total_period) { 2820 obj__printf(obj, "%11" PRIu64 " ", al->data[i].he.period); 2821 } else if (notes->options->show_nr_samples) { 2822 obj__printf(obj, "%6" PRIu64 " ", 2823 al->data[i].he.nr_samples); 2824 } else { 2825 obj__printf(obj, "%6.2f ", percent); 2826 } 2827 } 2828 } else { 2829 obj__set_percent_color(obj, 0, current_entry); 2830 2831 if (!show_title) 2832 obj__printf(obj, "%-*s", pcnt_width, " "); 2833 else { 2834 obj__printf(obj, "%-*s", pcnt_width, 2835 notes->options->show_total_period ? "Period" : 2836 notes->options->show_nr_samples ? "Samples" : "Percent"); 2837 } 2838 } 2839 2840 if (notes->have_cycles) { 2841 if (al->ipc) 2842 obj__printf(obj, "%*.2f ", ANNOTATION__IPC_WIDTH - 1, al->ipc); 2843 else if (!show_title) 2844 obj__printf(obj, "%*s", ANNOTATION__IPC_WIDTH, " "); 2845 else 2846 obj__printf(obj, "%*s ", ANNOTATION__IPC_WIDTH - 1, "IPC"); 2847 2848 if (!notes->options->show_minmax_cycle) { 2849 if (al->cycles) 2850 obj__printf(obj, "%*" PRIu64 " ", 2851 ANNOTATION__CYCLES_WIDTH - 1, al->cycles); 2852 else if (!show_title) 2853 obj__printf(obj, "%*s", 2854 ANNOTATION__CYCLES_WIDTH, " "); 2855 else 2856 obj__printf(obj, "%*s ", 2857 ANNOTATION__CYCLES_WIDTH - 1, 2858 "Cycle"); 2859 } else { 2860 if (al->cycles) { 2861 char str[32]; 2862 2863 scnprintf(str, sizeof(str), 2864 "%" PRIu64 "(%" PRIu64 "/%" PRIu64 ")", 2865 al->cycles, al->cycles_min, 2866 al->cycles_max); 2867 2868 obj__printf(obj, "%*s ", 2869 ANNOTATION__MINMAX_CYCLES_WIDTH - 1, 2870 str); 2871 } else if (!show_title) 2872 obj__printf(obj, "%*s", 2873 ANNOTATION__MINMAX_CYCLES_WIDTH, 2874 " "); 2875 else 2876 obj__printf(obj, "%*s ", 2877 ANNOTATION__MINMAX_CYCLES_WIDTH - 1, 2878 "Cycle(min/max)"); 2879 } 2880 2881 if (show_title && !*al->line) { 2882 ipc_coverage_string(bf, sizeof(bf), notes); 2883 obj__printf(obj, "%*s", ANNOTATION__AVG_IPC_WIDTH, bf); 2884 } 2885 } 2886 2887 obj__printf(obj, " "); 2888 2889 if (!*al->line) 2890 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width, " "); 2891 else if (al->offset == -1) { 2892 if (al->line_nr && notes->options->show_linenr) 2893 printed = scnprintf(bf, sizeof(bf), "%-*d ", notes->widths.addr + 1, al->line_nr); 2894 else 2895 printed = scnprintf(bf, sizeof(bf), "%-*s ", notes->widths.addr, " "); 2896 obj__printf(obj, bf); 2897 obj__printf(obj, "%-*s", width - printed - pcnt_width - cycles_width + 1, al->line); 2898 } else { 2899 u64 addr = al->offset; 2900 int color = -1; 2901 2902 if (!notes->options->use_offset) 2903 addr += notes->start; 2904 2905 if (!notes->options->use_offset) { 2906 printed = scnprintf(bf, sizeof(bf), "%" PRIx64 ": ", addr); 2907 } else { 2908 if (al->jump_sources && 2909 notes->options->offset_level >= ANNOTATION__OFFSET_JUMP_TARGETS) { 2910 if (notes->options->show_nr_jumps) { 2911 int prev; 2912 printed = scnprintf(bf, sizeof(bf), "%*d ", 2913 notes->widths.jumps, 2914 al->jump_sources); 2915 prev = obj__set_jumps_percent_color(obj, al->jump_sources, 2916 current_entry); 2917 obj__printf(obj, bf); 2918 obj__set_color(obj, prev); 2919 } 2920 print_addr: 2921 printed = scnprintf(bf, sizeof(bf), "%*" PRIx64 ": ", 2922 notes->widths.target, addr); 2923 } else if (ins__is_call(&disasm_line(al)->ins) && 2924 notes->options->offset_level >= ANNOTATION__OFFSET_CALL) { 2925 goto print_addr; 2926 } else if (notes->options->offset_level == ANNOTATION__MAX_OFFSET_LEVEL) { 2927 goto print_addr; 2928 } else { 2929 printed = scnprintf(bf, sizeof(bf), "%-*s ", 2930 notes->widths.addr, " "); 2931 } 2932 } 2933 2934 if (change_color) 2935 color = obj__set_color(obj, HE_COLORSET_ADDR); 2936 obj__printf(obj, bf); 2937 if (change_color) 2938 obj__set_color(obj, color); 2939 2940 disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf), obj__printf, obj__write_graph); 2941 2942 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width - 3 - printed, bf); 2943 } 2944 2945 } 2946 2947 void annotation_line__write(struct annotation_line *al, struct annotation *notes, 2948 struct annotation_write_ops *wops, 2949 struct annotation_options *opts) 2950 { 2951 __annotation_line__write(al, notes, wops->first_line, wops->current_entry, 2952 wops->change_color, wops->width, wops->obj, 2953 opts->percent_type, 2954 wops->set_color, wops->set_percent_color, 2955 wops->set_jumps_percent_color, wops->printf, 2956 wops->write_graph); 2957 } 2958 2959 int symbol__annotate2(struct symbol *sym, struct map *map, struct perf_evsel *evsel, 2960 struct annotation_options *options, struct arch **parch) 2961 { 2962 struct annotation *notes = symbol__annotation(sym); 2963 size_t size = symbol__size(sym); 2964 int nr_pcnt = 1, err; 2965 2966 notes->offsets = zalloc(size * sizeof(struct annotation_line *)); 2967 if (notes->offsets == NULL) 2968 return -1; 2969 2970 if (perf_evsel__is_group_event(evsel)) 2971 nr_pcnt = evsel->nr_members; 2972 2973 err = symbol__annotate(sym, map, evsel, 0, options, parch); 2974 if (err) 2975 goto out_free_offsets; 2976 2977 notes->options = options; 2978 2979 symbol__calc_percent(sym, evsel); 2980 2981 annotation__set_offsets(notes, size); 2982 annotation__mark_jump_targets(notes, sym); 2983 annotation__compute_ipc(notes, size); 2984 annotation__init_column_widths(notes, sym); 2985 notes->nr_events = nr_pcnt; 2986 2987 annotation__update_column_widths(notes); 2988 sym->annotate2 = true; 2989 2990 return 0; 2991 2992 out_free_offsets: 2993 zfree(¬es->offsets); 2994 return -1; 2995 } 2996 2997 #define ANNOTATION__CFG(n) \ 2998 { .name = #n, .value = &annotation__default_options.n, } 2999 3000 /* 3001 * Keep the entries sorted, they are bsearch'ed 3002 */ 3003 static struct annotation_config { 3004 const char *name; 3005 void *value; 3006 } annotation__configs[] = { 3007 ANNOTATION__CFG(hide_src_code), 3008 ANNOTATION__CFG(jump_arrows), 3009 ANNOTATION__CFG(offset_level), 3010 ANNOTATION__CFG(show_linenr), 3011 ANNOTATION__CFG(show_nr_jumps), 3012 ANNOTATION__CFG(show_nr_samples), 3013 ANNOTATION__CFG(show_total_period), 3014 ANNOTATION__CFG(use_offset), 3015 }; 3016 3017 #undef ANNOTATION__CFG 3018 3019 static int annotation_config__cmp(const void *name, const void *cfgp) 3020 { 3021 const struct annotation_config *cfg = cfgp; 3022 3023 return strcmp(name, cfg->name); 3024 } 3025 3026 static int annotation__config(const char *var, const char *value, 3027 void *data __maybe_unused) 3028 { 3029 struct annotation_config *cfg; 3030 const char *name; 3031 3032 if (!strstarts(var, "annotate.")) 3033 return 0; 3034 3035 name = var + 9; 3036 cfg = bsearch(name, annotation__configs, ARRAY_SIZE(annotation__configs), 3037 sizeof(struct annotation_config), annotation_config__cmp); 3038 3039 if (cfg == NULL) 3040 pr_debug("%s variable unknown, ignoring...", var); 3041 else if (strcmp(var, "annotate.offset_level") == 0) { 3042 perf_config_int(cfg->value, name, value); 3043 3044 if (*(int *)cfg->value > ANNOTATION__MAX_OFFSET_LEVEL) 3045 *(int *)cfg->value = ANNOTATION__MAX_OFFSET_LEVEL; 3046 else if (*(int *)cfg->value < ANNOTATION__MIN_OFFSET_LEVEL) 3047 *(int *)cfg->value = ANNOTATION__MIN_OFFSET_LEVEL; 3048 } else { 3049 *(bool *)cfg->value = perf_config_bool(name, value); 3050 } 3051 return 0; 3052 } 3053 3054 void annotation_config__init(void) 3055 { 3056 perf_config(annotation__config, NULL); 3057 3058 annotation__default_options.show_total_period = symbol_conf.show_total_period; 3059 annotation__default_options.show_nr_samples = symbol_conf.show_nr_samples; 3060 } 3061 3062 static unsigned int parse_percent_type(char *str1, char *str2) 3063 { 3064 unsigned int type = (unsigned int) -1; 3065 3066 if (!strcmp("period", str1)) { 3067 if (!strcmp("local", str2)) 3068 type = PERCENT_PERIOD_LOCAL; 3069 else if (!strcmp("global", str2)) 3070 type = PERCENT_PERIOD_GLOBAL; 3071 } 3072 3073 if (!strcmp("hits", str1)) { 3074 if (!strcmp("local", str2)) 3075 type = PERCENT_HITS_LOCAL; 3076 else if (!strcmp("global", str2)) 3077 type = PERCENT_HITS_GLOBAL; 3078 } 3079 3080 return type; 3081 } 3082 3083 int annotate_parse_percent_type(const struct option *opt, const char *_str, 3084 int unset __maybe_unused) 3085 { 3086 struct annotation_options *opts = opt->value; 3087 unsigned int type; 3088 char *str1, *str2; 3089 int err = -1; 3090 3091 str1 = strdup(_str); 3092 if (!str1) 3093 return -ENOMEM; 3094 3095 str2 = strchr(str1, '-'); 3096 if (!str2) 3097 goto out; 3098 3099 *str2++ = 0; 3100 3101 type = parse_percent_type(str1, str2); 3102 if (type == (unsigned int) -1) 3103 type = parse_percent_type(str2, str1); 3104 if (type != (unsigned int) -1) { 3105 opts->percent_type = type; 3106 err = 0; 3107 } 3108 3109 out: 3110 free(str1); 3111 return err; 3112 } 3113