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 "block-range.h" 32 #include "string2.h" 33 #include "util/event.h" 34 #include "arch/common.h" 35 #include <regex.h> 36 #include <pthread.h> 37 #include <linux/bitops.h> 38 #include <linux/kernel.h> 39 #include <linux/string.h> 40 #include <subcmd/parse-options.h> 41 #include <subcmd/run-command.h> 42 43 /* FIXME: For the HE_COLORSET */ 44 #include "ui/browser.h" 45 46 /* 47 * FIXME: Using the same values as slang.h, 48 * but that header may not be available everywhere 49 */ 50 #define LARROW_CHAR ((unsigned char)',') 51 #define RARROW_CHAR ((unsigned char)'+') 52 #define DARROW_CHAR ((unsigned char)'.') 53 #define UARROW_CHAR ((unsigned char)'-') 54 55 #include <linux/ctype.h> 56 57 struct annotation_options annotation__default_options = { 58 .use_offset = true, 59 .jump_arrows = true, 60 .annotate_src = true, 61 .offset_level = ANNOTATION__OFFSET_JUMP_TARGETS, 62 .percent_type = PERCENT_PERIOD_LOCAL, 63 }; 64 65 static regex_t file_lineno; 66 67 static struct ins_ops *ins__find(struct arch *arch, const char *name); 68 static void ins__sort(struct arch *arch); 69 static int disasm_line__parse(char *line, const char **namep, char **rawp); 70 71 struct arch { 72 const char *name; 73 struct ins *instructions; 74 size_t nr_instructions; 75 size_t nr_instructions_allocated; 76 struct ins_ops *(*associate_instruction_ops)(struct arch *arch, const char *name); 77 bool sorted_instructions; 78 bool initialized; 79 void *priv; 80 unsigned int model; 81 unsigned int family; 82 int (*init)(struct arch *arch, char *cpuid); 83 bool (*ins_is_fused)(struct arch *arch, const char *ins1, 84 const char *ins2); 85 struct { 86 char comment_char; 87 char skip_functions_char; 88 } objdump; 89 }; 90 91 static struct ins_ops call_ops; 92 static struct ins_ops dec_ops; 93 static struct ins_ops jump_ops; 94 static struct ins_ops mov_ops; 95 static struct ins_ops nop_ops; 96 static struct ins_ops lock_ops; 97 static struct ins_ops ret_ops; 98 99 static int arch__grow_instructions(struct arch *arch) 100 { 101 struct ins *new_instructions; 102 size_t new_nr_allocated; 103 104 if (arch->nr_instructions_allocated == 0 && arch->instructions) 105 goto grow_from_non_allocated_table; 106 107 new_nr_allocated = arch->nr_instructions_allocated + 128; 108 new_instructions = realloc(arch->instructions, new_nr_allocated * sizeof(struct ins)); 109 if (new_instructions == NULL) 110 return -1; 111 112 out_update_instructions: 113 arch->instructions = new_instructions; 114 arch->nr_instructions_allocated = new_nr_allocated; 115 return 0; 116 117 grow_from_non_allocated_table: 118 new_nr_allocated = arch->nr_instructions + 128; 119 new_instructions = calloc(new_nr_allocated, sizeof(struct ins)); 120 if (new_instructions == NULL) 121 return -1; 122 123 memcpy(new_instructions, arch->instructions, arch->nr_instructions); 124 goto out_update_instructions; 125 } 126 127 static int arch__associate_ins_ops(struct arch* arch, const char *name, struct ins_ops *ops) 128 { 129 struct ins *ins; 130 131 if (arch->nr_instructions == arch->nr_instructions_allocated && 132 arch__grow_instructions(arch)) 133 return -1; 134 135 ins = &arch->instructions[arch->nr_instructions]; 136 ins->name = strdup(name); 137 if (!ins->name) 138 return -1; 139 140 ins->ops = ops; 141 arch->nr_instructions++; 142 143 ins__sort(arch); 144 return 0; 145 } 146 147 #include "arch/arc/annotate/instructions.c" 148 #include "arch/arm/annotate/instructions.c" 149 #include "arch/arm64/annotate/instructions.c" 150 #include "arch/csky/annotate/instructions.c" 151 #include "arch/mips/annotate/instructions.c" 152 #include "arch/x86/annotate/instructions.c" 153 #include "arch/powerpc/annotate/instructions.c" 154 #include "arch/s390/annotate/instructions.c" 155 #include "arch/sparc/annotate/instructions.c" 156 157 static struct arch architectures[] = { 158 { 159 .name = "arc", 160 .init = arc__annotate_init, 161 }, 162 { 163 .name = "arm", 164 .init = arm__annotate_init, 165 }, 166 { 167 .name = "arm64", 168 .init = arm64__annotate_init, 169 }, 170 { 171 .name = "csky", 172 .init = csky__annotate_init, 173 }, 174 { 175 .name = "mips", 176 .init = mips__annotate_init, 177 .objdump = { 178 .comment_char = '#', 179 }, 180 }, 181 { 182 .name = "x86", 183 .init = x86__annotate_init, 184 .instructions = x86__instructions, 185 .nr_instructions = ARRAY_SIZE(x86__instructions), 186 .ins_is_fused = x86__ins_is_fused, 187 .objdump = { 188 .comment_char = '#', 189 }, 190 }, 191 { 192 .name = "powerpc", 193 .init = powerpc__annotate_init, 194 }, 195 { 196 .name = "s390", 197 .init = s390__annotate_init, 198 .objdump = { 199 .comment_char = '#', 200 }, 201 }, 202 { 203 .name = "sparc", 204 .init = sparc__annotate_init, 205 .objdump = { 206 .comment_char = '#', 207 }, 208 }, 209 }; 210 211 static void ins__delete(struct ins_operands *ops) 212 { 213 if (ops == NULL) 214 return; 215 zfree(&ops->source.raw); 216 zfree(&ops->source.name); 217 zfree(&ops->target.raw); 218 zfree(&ops->target.name); 219 } 220 221 static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size, 222 struct ins_operands *ops, int max_ins_name) 223 { 224 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->raw); 225 } 226 227 int ins__scnprintf(struct ins *ins, char *bf, size_t size, 228 struct ins_operands *ops, int max_ins_name) 229 { 230 if (ins->ops->scnprintf) 231 return ins->ops->scnprintf(ins, bf, size, ops, max_ins_name); 232 233 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name); 234 } 235 236 bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2) 237 { 238 if (!arch || !arch->ins_is_fused) 239 return false; 240 241 return arch->ins_is_fused(arch, ins1, ins2); 242 } 243 244 static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms) 245 { 246 char *endptr, *tok, *name; 247 struct map *map = ms->map; 248 struct addr_map_symbol target = { 249 .ms = { .map = map, }, 250 }; 251 252 ops->target.addr = strtoull(ops->raw, &endptr, 16); 253 254 name = strchr(endptr, '<'); 255 if (name == NULL) 256 goto indirect_call; 257 258 name++; 259 260 if (arch->objdump.skip_functions_char && 261 strchr(name, arch->objdump.skip_functions_char)) 262 return -1; 263 264 tok = strchr(name, '>'); 265 if (tok == NULL) 266 return -1; 267 268 *tok = '\0'; 269 ops->target.name = strdup(name); 270 *tok = '>'; 271 272 if (ops->target.name == NULL) 273 return -1; 274 find_target: 275 target.addr = map__objdump_2mem(map, ops->target.addr); 276 277 if (maps__find_ams(ms->maps, &target) == 0 && 278 map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr) 279 ops->target.sym = target.ms.sym; 280 281 return 0; 282 283 indirect_call: 284 tok = strchr(endptr, '*'); 285 if (tok != NULL) { 286 endptr++; 287 288 /* Indirect call can use a non-rip register and offset: callq *0x8(%rbx). 289 * Do not parse such instruction. */ 290 if (strstr(endptr, "(%r") == NULL) 291 ops->target.addr = strtoull(endptr, NULL, 16); 292 } 293 goto find_target; 294 } 295 296 static int call__scnprintf(struct ins *ins, char *bf, size_t size, 297 struct ins_operands *ops, int max_ins_name) 298 { 299 if (ops->target.sym) 300 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name); 301 302 if (ops->target.addr == 0) 303 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name); 304 305 if (ops->target.name) 306 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.name); 307 308 return scnprintf(bf, size, "%-*s *%" PRIx64, max_ins_name, ins->name, ops->target.addr); 309 } 310 311 static struct ins_ops call_ops = { 312 .parse = call__parse, 313 .scnprintf = call__scnprintf, 314 }; 315 316 bool ins__is_call(const struct ins *ins) 317 { 318 return ins->ops == &call_ops || ins->ops == &s390_call_ops; 319 } 320 321 /* 322 * Prevents from matching commas in the comment section, e.g.: 323 * ffff200008446e70: b.cs ffff2000084470f4 <generic_exec_single+0x314> // b.hs, b.nlast 324 */ 325 static inline const char *validate_comma(const char *c, struct ins_operands *ops) 326 { 327 if (ops->raw_comment && c > ops->raw_comment) 328 return NULL; 329 330 return c; 331 } 332 333 static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms) 334 { 335 struct map *map = ms->map; 336 struct symbol *sym = ms->sym; 337 struct addr_map_symbol target = { 338 .ms = { .map = map, }, 339 }; 340 const char *c = strchr(ops->raw, ','); 341 u64 start, end; 342 343 ops->raw_comment = strchr(ops->raw, arch->objdump.comment_char); 344 c = validate_comma(c, ops); 345 346 /* 347 * Examples of lines to parse for the _cpp_lex_token@@Base 348 * function: 349 * 350 * 1159e6c: jne 115aa32 <_cpp_lex_token@@Base+0xf92> 351 * 1159e8b: jne c469be <cpp_named_operator2name@@Base+0xa72> 352 * 353 * The first is a jump to an offset inside the same function, 354 * the second is to another function, i.e. that 0xa72 is an 355 * offset in the cpp_named_operator2name@@base function. 356 */ 357 /* 358 * skip over possible up to 2 operands to get to address, e.g.: 359 * tbnz w0, #26, ffff0000083cd190 <security_file_permission+0xd0> 360 */ 361 if (c++ != NULL) { 362 ops->target.addr = strtoull(c, NULL, 16); 363 if (!ops->target.addr) { 364 c = strchr(c, ','); 365 c = validate_comma(c, ops); 366 if (c++ != NULL) 367 ops->target.addr = strtoull(c, NULL, 16); 368 } 369 } else { 370 ops->target.addr = strtoull(ops->raw, NULL, 16); 371 } 372 373 target.addr = map__objdump_2mem(map, ops->target.addr); 374 start = map->unmap_ip(map, sym->start), 375 end = map->unmap_ip(map, sym->end); 376 377 ops->target.outside = target.addr < start || target.addr > end; 378 379 /* 380 * FIXME: things like this in _cpp_lex_token (gcc's cc1 program): 381 382 cpp_named_operator2name@@Base+0xa72 383 384 * Point to a place that is after the cpp_named_operator2name 385 * boundaries, i.e. in the ELF symbol table for cc1 386 * cpp_named_operator2name is marked as being 32-bytes long, but it in 387 * fact is much larger than that, so we seem to need a symbols__find() 388 * routine that looks for >= current->start and < next_symbol->start, 389 * possibly just for C++ objects? 390 * 391 * For now lets just make some progress by marking jumps to outside the 392 * current function as call like. 393 * 394 * Actual navigation will come next, with further understanding of how 395 * the symbol searching and disassembly should be done. 396 */ 397 if (maps__find_ams(ms->maps, &target) == 0 && 398 map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr) 399 ops->target.sym = target.ms.sym; 400 401 if (!ops->target.outside) { 402 ops->target.offset = target.addr - start; 403 ops->target.offset_avail = true; 404 } else { 405 ops->target.offset_avail = false; 406 } 407 408 return 0; 409 } 410 411 static int jump__scnprintf(struct ins *ins, char *bf, size_t size, 412 struct ins_operands *ops, int max_ins_name) 413 { 414 const char *c; 415 416 if (!ops->target.addr || ops->target.offset < 0) 417 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name); 418 419 if (ops->target.outside && ops->target.sym != NULL) 420 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name); 421 422 c = strchr(ops->raw, ','); 423 c = validate_comma(c, ops); 424 425 if (c != NULL) { 426 const char *c2 = strchr(c + 1, ','); 427 428 c2 = validate_comma(c2, ops); 429 /* check for 3-op insn */ 430 if (c2 != NULL) 431 c = c2; 432 c++; 433 434 /* mirror arch objdump's space-after-comma style */ 435 if (*c == ' ') 436 c++; 437 } 438 439 return scnprintf(bf, size, "%-*s %.*s%" PRIx64, max_ins_name, 440 ins->name, c ? c - ops->raw : 0, ops->raw, 441 ops->target.offset); 442 } 443 444 static struct ins_ops jump_ops = { 445 .parse = jump__parse, 446 .scnprintf = jump__scnprintf, 447 }; 448 449 bool ins__is_jump(const struct ins *ins) 450 { 451 return ins->ops == &jump_ops; 452 } 453 454 static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep) 455 { 456 char *endptr, *name, *t; 457 458 if (strstr(raw, "(%rip)") == NULL) 459 return 0; 460 461 *addrp = strtoull(comment, &endptr, 16); 462 if (endptr == comment) 463 return 0; 464 name = strchr(endptr, '<'); 465 if (name == NULL) 466 return -1; 467 468 name++; 469 470 t = strchr(name, '>'); 471 if (t == NULL) 472 return 0; 473 474 *t = '\0'; 475 *namep = strdup(name); 476 *t = '>'; 477 478 return 0; 479 } 480 481 static int lock__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms) 482 { 483 ops->locked.ops = zalloc(sizeof(*ops->locked.ops)); 484 if (ops->locked.ops == NULL) 485 return 0; 486 487 if (disasm_line__parse(ops->raw, &ops->locked.ins.name, &ops->locked.ops->raw) < 0) 488 goto out_free_ops; 489 490 ops->locked.ins.ops = ins__find(arch, ops->locked.ins.name); 491 492 if (ops->locked.ins.ops == NULL) 493 goto out_free_ops; 494 495 if (ops->locked.ins.ops->parse && 496 ops->locked.ins.ops->parse(arch, ops->locked.ops, ms) < 0) 497 goto out_free_ops; 498 499 return 0; 500 501 out_free_ops: 502 zfree(&ops->locked.ops); 503 return 0; 504 } 505 506 static int lock__scnprintf(struct ins *ins, char *bf, size_t size, 507 struct ins_operands *ops, int max_ins_name) 508 { 509 int printed; 510 511 if (ops->locked.ins.ops == NULL) 512 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name); 513 514 printed = scnprintf(bf, size, "%-*s ", max_ins_name, ins->name); 515 return printed + ins__scnprintf(&ops->locked.ins, bf + printed, 516 size - printed, ops->locked.ops, max_ins_name); 517 } 518 519 static void lock__delete(struct ins_operands *ops) 520 { 521 struct ins *ins = &ops->locked.ins; 522 523 if (ins->ops && ins->ops->free) 524 ins->ops->free(ops->locked.ops); 525 else 526 ins__delete(ops->locked.ops); 527 528 zfree(&ops->locked.ops); 529 zfree(&ops->target.raw); 530 zfree(&ops->target.name); 531 } 532 533 static struct ins_ops lock_ops = { 534 .free = lock__delete, 535 .parse = lock__parse, 536 .scnprintf = lock__scnprintf, 537 }; 538 539 static int mov__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms __maybe_unused) 540 { 541 char *s = strchr(ops->raw, ','), *target, *comment, prev; 542 543 if (s == NULL) 544 return -1; 545 546 *s = '\0'; 547 ops->source.raw = strdup(ops->raw); 548 *s = ','; 549 550 if (ops->source.raw == NULL) 551 return -1; 552 553 target = ++s; 554 comment = strchr(s, arch->objdump.comment_char); 555 556 if (comment != NULL) 557 s = comment - 1; 558 else 559 s = strchr(s, '\0') - 1; 560 561 while (s > target && isspace(s[0])) 562 --s; 563 s++; 564 prev = *s; 565 *s = '\0'; 566 567 ops->target.raw = strdup(target); 568 *s = prev; 569 570 if (ops->target.raw == NULL) 571 goto out_free_source; 572 573 if (comment == NULL) 574 return 0; 575 576 comment = skip_spaces(comment); 577 comment__symbol(ops->source.raw, comment + 1, &ops->source.addr, &ops->source.name); 578 comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name); 579 580 return 0; 581 582 out_free_source: 583 zfree(&ops->source.raw); 584 return -1; 585 } 586 587 static int mov__scnprintf(struct ins *ins, char *bf, size_t size, 588 struct ins_operands *ops, int max_ins_name) 589 { 590 return scnprintf(bf, size, "%-*s %s,%s", max_ins_name, ins->name, 591 ops->source.name ?: ops->source.raw, 592 ops->target.name ?: ops->target.raw); 593 } 594 595 static struct ins_ops mov_ops = { 596 .parse = mov__parse, 597 .scnprintf = mov__scnprintf, 598 }; 599 600 static int dec__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map_symbol *ms __maybe_unused) 601 { 602 char *target, *comment, *s, prev; 603 604 target = s = ops->raw; 605 606 while (s[0] != '\0' && !isspace(s[0])) 607 ++s; 608 prev = *s; 609 *s = '\0'; 610 611 ops->target.raw = strdup(target); 612 *s = prev; 613 614 if (ops->target.raw == NULL) 615 return -1; 616 617 comment = strchr(s, arch->objdump.comment_char); 618 if (comment == NULL) 619 return 0; 620 621 comment = skip_spaces(comment); 622 comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name); 623 624 return 0; 625 } 626 627 static int dec__scnprintf(struct ins *ins, char *bf, size_t size, 628 struct ins_operands *ops, int max_ins_name) 629 { 630 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, 631 ops->target.name ?: ops->target.raw); 632 } 633 634 static struct ins_ops dec_ops = { 635 .parse = dec__parse, 636 .scnprintf = dec__scnprintf, 637 }; 638 639 static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size, 640 struct ins_operands *ops __maybe_unused, int max_ins_name) 641 { 642 return scnprintf(bf, size, "%-*s", max_ins_name, "nop"); 643 } 644 645 static struct ins_ops nop_ops = { 646 .scnprintf = nop__scnprintf, 647 }; 648 649 static struct ins_ops ret_ops = { 650 .scnprintf = ins__raw_scnprintf, 651 }; 652 653 bool ins__is_ret(const struct ins *ins) 654 { 655 return ins->ops == &ret_ops; 656 } 657 658 bool ins__is_lock(const struct ins *ins) 659 { 660 return ins->ops == &lock_ops; 661 } 662 663 static int ins__key_cmp(const void *name, const void *insp) 664 { 665 const struct ins *ins = insp; 666 667 return strcmp(name, ins->name); 668 } 669 670 static int ins__cmp(const void *a, const void *b) 671 { 672 const struct ins *ia = a; 673 const struct ins *ib = b; 674 675 return strcmp(ia->name, ib->name); 676 } 677 678 static void ins__sort(struct arch *arch) 679 { 680 const int nmemb = arch->nr_instructions; 681 682 qsort(arch->instructions, nmemb, sizeof(struct ins), ins__cmp); 683 } 684 685 static struct ins_ops *__ins__find(struct arch *arch, const char *name) 686 { 687 struct ins *ins; 688 const int nmemb = arch->nr_instructions; 689 690 if (!arch->sorted_instructions) { 691 ins__sort(arch); 692 arch->sorted_instructions = true; 693 } 694 695 ins = bsearch(name, arch->instructions, nmemb, sizeof(struct ins), ins__key_cmp); 696 return ins ? ins->ops : NULL; 697 } 698 699 static struct ins_ops *ins__find(struct arch *arch, const char *name) 700 { 701 struct ins_ops *ops = __ins__find(arch, name); 702 703 if (!ops && arch->associate_instruction_ops) 704 ops = arch->associate_instruction_ops(arch, name); 705 706 return ops; 707 } 708 709 static int arch__key_cmp(const void *name, const void *archp) 710 { 711 const struct arch *arch = archp; 712 713 return strcmp(name, arch->name); 714 } 715 716 static int arch__cmp(const void *a, const void *b) 717 { 718 const struct arch *aa = a; 719 const struct arch *ab = b; 720 721 return strcmp(aa->name, ab->name); 722 } 723 724 static void arch__sort(void) 725 { 726 const int nmemb = ARRAY_SIZE(architectures); 727 728 qsort(architectures, nmemb, sizeof(struct arch), arch__cmp); 729 } 730 731 static struct arch *arch__find(const char *name) 732 { 733 const int nmemb = ARRAY_SIZE(architectures); 734 static bool sorted; 735 736 if (!sorted) { 737 arch__sort(); 738 sorted = true; 739 } 740 741 return bsearch(name, architectures, nmemb, sizeof(struct arch), arch__key_cmp); 742 } 743 744 static struct annotated_source *annotated_source__new(void) 745 { 746 struct annotated_source *src = zalloc(sizeof(*src)); 747 748 if (src != NULL) 749 INIT_LIST_HEAD(&src->source); 750 751 return src; 752 } 753 754 static __maybe_unused void annotated_source__delete(struct annotated_source *src) 755 { 756 if (src == NULL) 757 return; 758 zfree(&src->histograms); 759 zfree(&src->cycles_hist); 760 free(src); 761 } 762 763 static int annotated_source__alloc_histograms(struct annotated_source *src, 764 size_t size, int nr_hists) 765 { 766 size_t sizeof_sym_hist; 767 768 /* 769 * Add buffer of one element for zero length symbol. 770 * When sample is taken from first instruction of 771 * zero length symbol, perf still resolves it and 772 * shows symbol name in perf report and allows to 773 * annotate it. 774 */ 775 if (size == 0) 776 size = 1; 777 778 /* Check for overflow when calculating sizeof_sym_hist */ 779 if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(struct sym_hist_entry)) 780 return -1; 781 782 sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(struct sym_hist_entry)); 783 784 /* Check for overflow in zalloc argument */ 785 if (sizeof_sym_hist > SIZE_MAX / nr_hists) 786 return -1; 787 788 src->sizeof_sym_hist = sizeof_sym_hist; 789 src->nr_histograms = nr_hists; 790 src->histograms = calloc(nr_hists, sizeof_sym_hist) ; 791 return src->histograms ? 0 : -1; 792 } 793 794 /* The cycles histogram is lazily allocated. */ 795 static int symbol__alloc_hist_cycles(struct symbol *sym) 796 { 797 struct annotation *notes = symbol__annotation(sym); 798 const size_t size = symbol__size(sym); 799 800 notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist)); 801 if (notes->src->cycles_hist == NULL) 802 return -1; 803 return 0; 804 } 805 806 void symbol__annotate_zero_histograms(struct symbol *sym) 807 { 808 struct annotation *notes = symbol__annotation(sym); 809 810 pthread_mutex_lock(¬es->lock); 811 if (notes->src != NULL) { 812 memset(notes->src->histograms, 0, 813 notes->src->nr_histograms * notes->src->sizeof_sym_hist); 814 if (notes->src->cycles_hist) 815 memset(notes->src->cycles_hist, 0, 816 symbol__size(sym) * sizeof(struct cyc_hist)); 817 } 818 pthread_mutex_unlock(¬es->lock); 819 } 820 821 static int __symbol__account_cycles(struct cyc_hist *ch, 822 u64 start, 823 unsigned offset, unsigned cycles, 824 unsigned have_start) 825 { 826 /* 827 * For now we can only account one basic block per 828 * final jump. But multiple could be overlapping. 829 * Always account the longest one. So when 830 * a shorter one has been already seen throw it away. 831 * 832 * We separately always account the full cycles. 833 */ 834 ch[offset].num_aggr++; 835 ch[offset].cycles_aggr += cycles; 836 837 if (cycles > ch[offset].cycles_max) 838 ch[offset].cycles_max = cycles; 839 840 if (ch[offset].cycles_min) { 841 if (cycles && cycles < ch[offset].cycles_min) 842 ch[offset].cycles_min = cycles; 843 } else 844 ch[offset].cycles_min = cycles; 845 846 if (!have_start && ch[offset].have_start) 847 return 0; 848 if (ch[offset].num) { 849 if (have_start && (!ch[offset].have_start || 850 ch[offset].start > start)) { 851 ch[offset].have_start = 0; 852 ch[offset].cycles = 0; 853 ch[offset].num = 0; 854 if (ch[offset].reset < 0xffff) 855 ch[offset].reset++; 856 } else if (have_start && 857 ch[offset].start < start) 858 return 0; 859 } 860 861 if (ch[offset].num < NUM_SPARKS) 862 ch[offset].cycles_spark[ch[offset].num] = cycles; 863 864 ch[offset].have_start = have_start; 865 ch[offset].start = start; 866 ch[offset].cycles += cycles; 867 ch[offset].num++; 868 return 0; 869 } 870 871 static int __symbol__inc_addr_samples(struct map_symbol *ms, 872 struct annotated_source *src, int evidx, u64 addr, 873 struct perf_sample *sample) 874 { 875 struct symbol *sym = ms->sym; 876 unsigned offset; 877 struct sym_hist *h; 878 879 pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, ms->map->unmap_ip(ms->map, addr)); 880 881 if ((addr < sym->start || addr >= sym->end) && 882 (addr != sym->end || sym->start != sym->end)) { 883 pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n", 884 __func__, __LINE__, sym->name, sym->start, addr, sym->end); 885 return -ERANGE; 886 } 887 888 offset = addr - sym->start; 889 h = annotated_source__histogram(src, evidx); 890 if (h == NULL) { 891 pr_debug("%s(%d): ENOMEM! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 ", func: %d\n", 892 __func__, __LINE__, sym->name, sym->start, addr, sym->end, sym->type == STT_FUNC); 893 return -ENOMEM; 894 } 895 h->nr_samples++; 896 h->addr[offset].nr_samples++; 897 h->period += sample->period; 898 h->addr[offset].period += sample->period; 899 900 pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64 901 ", evidx=%d] => nr_samples: %" PRIu64 ", period: %" PRIu64 "\n", 902 sym->start, sym->name, addr, addr - sym->start, evidx, 903 h->addr[offset].nr_samples, h->addr[offset].period); 904 return 0; 905 } 906 907 static struct cyc_hist *symbol__cycles_hist(struct symbol *sym) 908 { 909 struct annotation *notes = symbol__annotation(sym); 910 911 if (notes->src == NULL) { 912 notes->src = annotated_source__new(); 913 if (notes->src == NULL) 914 return NULL; 915 goto alloc_cycles_hist; 916 } 917 918 if (!notes->src->cycles_hist) { 919 alloc_cycles_hist: 920 symbol__alloc_hist_cycles(sym); 921 } 922 923 return notes->src->cycles_hist; 924 } 925 926 struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists) 927 { 928 struct annotation *notes = symbol__annotation(sym); 929 930 if (notes->src == NULL) { 931 notes->src = annotated_source__new(); 932 if (notes->src == NULL) 933 return NULL; 934 goto alloc_histograms; 935 } 936 937 if (notes->src->histograms == NULL) { 938 alloc_histograms: 939 annotated_source__alloc_histograms(notes->src, symbol__size(sym), 940 nr_hists); 941 } 942 943 return notes->src; 944 } 945 946 static int symbol__inc_addr_samples(struct map_symbol *ms, 947 struct evsel *evsel, u64 addr, 948 struct perf_sample *sample) 949 { 950 struct symbol *sym = ms->sym; 951 struct annotated_source *src; 952 953 if (sym == NULL) 954 return 0; 955 src = symbol__hists(sym, evsel->evlist->core.nr_entries); 956 return src ? __symbol__inc_addr_samples(ms, src, evsel->idx, addr, sample) : 0; 957 } 958 959 static int symbol__account_cycles(u64 addr, u64 start, 960 struct symbol *sym, unsigned cycles) 961 { 962 struct cyc_hist *cycles_hist; 963 unsigned offset; 964 965 if (sym == NULL) 966 return 0; 967 cycles_hist = symbol__cycles_hist(sym); 968 if (cycles_hist == NULL) 969 return -ENOMEM; 970 if (addr < sym->start || addr >= sym->end) 971 return -ERANGE; 972 973 if (start) { 974 if (start < sym->start || start >= sym->end) 975 return -ERANGE; 976 if (start >= addr) 977 start = 0; 978 } 979 offset = addr - sym->start; 980 return __symbol__account_cycles(cycles_hist, 981 start ? start - sym->start : 0, 982 offset, cycles, 983 !!start); 984 } 985 986 int addr_map_symbol__account_cycles(struct addr_map_symbol *ams, 987 struct addr_map_symbol *start, 988 unsigned cycles) 989 { 990 u64 saddr = 0; 991 int err; 992 993 if (!cycles) 994 return 0; 995 996 /* 997 * Only set start when IPC can be computed. We can only 998 * compute it when the basic block is completely in a single 999 * function. 1000 * Special case the case when the jump is elsewhere, but 1001 * it starts on the function start. 1002 */ 1003 if (start && 1004 (start->ms.sym == ams->ms.sym || 1005 (ams->ms.sym && 1006 start->addr == ams->ms.sym->start + ams->ms.map->start))) 1007 saddr = start->al_addr; 1008 if (saddr == 0) 1009 pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n", 1010 ams->addr, 1011 start ? start->addr : 0, 1012 ams->ms.sym ? ams->ms.sym->start + ams->ms.map->start : 0, 1013 saddr); 1014 err = symbol__account_cycles(ams->al_addr, saddr, ams->ms.sym, cycles); 1015 if (err) 1016 pr_debug2("account_cycles failed %d\n", err); 1017 return err; 1018 } 1019 1020 static unsigned annotation__count_insn(struct annotation *notes, u64 start, u64 end) 1021 { 1022 unsigned n_insn = 0; 1023 u64 offset; 1024 1025 for (offset = start; offset <= end; offset++) { 1026 if (notes->offsets[offset]) 1027 n_insn++; 1028 } 1029 return n_insn; 1030 } 1031 1032 static void annotation__count_and_fill(struct annotation *notes, u64 start, u64 end, struct cyc_hist *ch) 1033 { 1034 unsigned n_insn; 1035 unsigned int cover_insn = 0; 1036 u64 offset; 1037 1038 n_insn = annotation__count_insn(notes, start, end); 1039 if (n_insn && ch->num && ch->cycles) { 1040 float ipc = n_insn / ((double)ch->cycles / (double)ch->num); 1041 1042 /* Hide data when there are too many overlaps. */ 1043 if (ch->reset >= 0x7fff) 1044 return; 1045 1046 for (offset = start; offset <= end; offset++) { 1047 struct annotation_line *al = notes->offsets[offset]; 1048 1049 if (al && al->ipc == 0.0) { 1050 al->ipc = ipc; 1051 cover_insn++; 1052 } 1053 } 1054 1055 if (cover_insn) { 1056 notes->hit_cycles += ch->cycles; 1057 notes->hit_insn += n_insn * ch->num; 1058 notes->cover_insn += cover_insn; 1059 } 1060 } 1061 } 1062 1063 void annotation__compute_ipc(struct annotation *notes, size_t size) 1064 { 1065 s64 offset; 1066 1067 if (!notes->src || !notes->src->cycles_hist) 1068 return; 1069 1070 notes->total_insn = annotation__count_insn(notes, 0, size - 1); 1071 notes->hit_cycles = 0; 1072 notes->hit_insn = 0; 1073 notes->cover_insn = 0; 1074 1075 pthread_mutex_lock(¬es->lock); 1076 for (offset = size - 1; offset >= 0; --offset) { 1077 struct cyc_hist *ch; 1078 1079 ch = ¬es->src->cycles_hist[offset]; 1080 if (ch && ch->cycles) { 1081 struct annotation_line *al; 1082 1083 if (ch->have_start) 1084 annotation__count_and_fill(notes, ch->start, offset, ch); 1085 al = notes->offsets[offset]; 1086 if (al && ch->num_aggr) { 1087 al->cycles = ch->cycles_aggr / ch->num_aggr; 1088 al->cycles_max = ch->cycles_max; 1089 al->cycles_min = ch->cycles_min; 1090 } 1091 notes->have_cycles = true; 1092 } 1093 } 1094 pthread_mutex_unlock(¬es->lock); 1095 } 1096 1097 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample, 1098 struct evsel *evsel) 1099 { 1100 return symbol__inc_addr_samples(&ams->ms, evsel, ams->al_addr, sample); 1101 } 1102 1103 int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample, 1104 struct evsel *evsel, u64 ip) 1105 { 1106 return symbol__inc_addr_samples(&he->ms, evsel, ip, sample); 1107 } 1108 1109 static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, struct map_symbol *ms) 1110 { 1111 dl->ins.ops = ins__find(arch, dl->ins.name); 1112 1113 if (!dl->ins.ops) 1114 return; 1115 1116 if (dl->ins.ops->parse && dl->ins.ops->parse(arch, &dl->ops, ms) < 0) 1117 dl->ins.ops = NULL; 1118 } 1119 1120 static int disasm_line__parse(char *line, const char **namep, char **rawp) 1121 { 1122 char tmp, *name = skip_spaces(line); 1123 1124 if (name[0] == '\0') 1125 return -1; 1126 1127 *rawp = name + 1; 1128 1129 while ((*rawp)[0] != '\0' && !isspace((*rawp)[0])) 1130 ++*rawp; 1131 1132 tmp = (*rawp)[0]; 1133 (*rawp)[0] = '\0'; 1134 *namep = strdup(name); 1135 1136 if (*namep == NULL) 1137 goto out; 1138 1139 (*rawp)[0] = tmp; 1140 *rawp = strim(*rawp); 1141 1142 return 0; 1143 1144 out: 1145 return -1; 1146 } 1147 1148 struct annotate_args { 1149 struct arch *arch; 1150 struct map_symbol ms; 1151 struct evsel *evsel; 1152 struct annotation_options *options; 1153 s64 offset; 1154 char *line; 1155 int line_nr; 1156 }; 1157 1158 static void annotation_line__init(struct annotation_line *al, 1159 struct annotate_args *args, 1160 int nr) 1161 { 1162 al->offset = args->offset; 1163 al->line = strdup(args->line); 1164 al->line_nr = args->line_nr; 1165 al->data_nr = nr; 1166 } 1167 1168 static void annotation_line__exit(struct annotation_line *al) 1169 { 1170 free_srcline(al->path); 1171 zfree(&al->line); 1172 } 1173 1174 static size_t disasm_line_size(int nr) 1175 { 1176 struct annotation_line *al; 1177 1178 return (sizeof(struct disasm_line) + (sizeof(al->data[0]) * nr)); 1179 } 1180 1181 /* 1182 * Allocating the disasm annotation line data with 1183 * following structure: 1184 * 1185 * ------------------------------------------- 1186 * struct disasm_line | struct annotation_line 1187 * ------------------------------------------- 1188 * 1189 * We have 'struct annotation_line' member as last member 1190 * of 'struct disasm_line' to have an easy access. 1191 */ 1192 static struct disasm_line *disasm_line__new(struct annotate_args *args) 1193 { 1194 struct disasm_line *dl = NULL; 1195 int nr = 1; 1196 1197 if (evsel__is_group_event(args->evsel)) 1198 nr = args->evsel->core.nr_members; 1199 1200 dl = zalloc(disasm_line_size(nr)); 1201 if (!dl) 1202 return NULL; 1203 1204 annotation_line__init(&dl->al, args, nr); 1205 if (dl->al.line == NULL) 1206 goto out_delete; 1207 1208 if (args->offset != -1) { 1209 if (disasm_line__parse(dl->al.line, &dl->ins.name, &dl->ops.raw) < 0) 1210 goto out_free_line; 1211 1212 disasm_line__init_ins(dl, args->arch, &args->ms); 1213 } 1214 1215 return dl; 1216 1217 out_free_line: 1218 zfree(&dl->al.line); 1219 out_delete: 1220 free(dl); 1221 return NULL; 1222 } 1223 1224 void disasm_line__free(struct disasm_line *dl) 1225 { 1226 if (dl->ins.ops && dl->ins.ops->free) 1227 dl->ins.ops->free(&dl->ops); 1228 else 1229 ins__delete(&dl->ops); 1230 zfree(&dl->ins.name); 1231 annotation_line__exit(&dl->al); 1232 free(dl); 1233 } 1234 1235 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw, int max_ins_name) 1236 { 1237 if (raw || !dl->ins.ops) 1238 return scnprintf(bf, size, "%-*s %s", max_ins_name, dl->ins.name, dl->ops.raw); 1239 1240 return ins__scnprintf(&dl->ins, bf, size, &dl->ops, max_ins_name); 1241 } 1242 1243 static void annotation_line__add(struct annotation_line *al, struct list_head *head) 1244 { 1245 list_add_tail(&al->node, head); 1246 } 1247 1248 struct annotation_line * 1249 annotation_line__next(struct annotation_line *pos, struct list_head *head) 1250 { 1251 list_for_each_entry_continue(pos, head, node) 1252 if (pos->offset >= 0) 1253 return pos; 1254 1255 return NULL; 1256 } 1257 1258 static const char *annotate__address_color(struct block_range *br) 1259 { 1260 double cov = block_range__coverage(br); 1261 1262 if (cov >= 0) { 1263 /* mark red for >75% coverage */ 1264 if (cov > 0.75) 1265 return PERF_COLOR_RED; 1266 1267 /* mark dull for <1% coverage */ 1268 if (cov < 0.01) 1269 return PERF_COLOR_NORMAL; 1270 } 1271 1272 return PERF_COLOR_MAGENTA; 1273 } 1274 1275 static const char *annotate__asm_color(struct block_range *br) 1276 { 1277 double cov = block_range__coverage(br); 1278 1279 if (cov >= 0) { 1280 /* mark dull for <1% coverage */ 1281 if (cov < 0.01) 1282 return PERF_COLOR_NORMAL; 1283 } 1284 1285 return PERF_COLOR_BLUE; 1286 } 1287 1288 static void annotate__branch_printf(struct block_range *br, u64 addr) 1289 { 1290 bool emit_comment = true; 1291 1292 if (!br) 1293 return; 1294 1295 #if 1 1296 if (br->is_target && br->start == addr) { 1297 struct block_range *branch = br; 1298 double p; 1299 1300 /* 1301 * Find matching branch to our target. 1302 */ 1303 while (!branch->is_branch) 1304 branch = block_range__next(branch); 1305 1306 p = 100 *(double)br->entry / branch->coverage; 1307 1308 if (p > 0.1) { 1309 if (emit_comment) { 1310 emit_comment = false; 1311 printf("\t#"); 1312 } 1313 1314 /* 1315 * The percentage of coverage joined at this target in relation 1316 * to the next branch. 1317 */ 1318 printf(" +%.2f%%", p); 1319 } 1320 } 1321 #endif 1322 if (br->is_branch && br->end == addr) { 1323 double p = 100*(double)br->taken / br->coverage; 1324 1325 if (p > 0.1) { 1326 if (emit_comment) { 1327 emit_comment = false; 1328 printf("\t#"); 1329 } 1330 1331 /* 1332 * The percentage of coverage leaving at this branch, and 1333 * its prediction ratio. 1334 */ 1335 printf(" -%.2f%% (p:%.2f%%)", p, 100*(double)br->pred / br->taken); 1336 } 1337 } 1338 } 1339 1340 static int disasm_line__print(struct disasm_line *dl, u64 start, int addr_fmt_width) 1341 { 1342 s64 offset = dl->al.offset; 1343 const u64 addr = start + offset; 1344 struct block_range *br; 1345 1346 br = block_range__find(addr); 1347 color_fprintf(stdout, annotate__address_color(br), " %*" PRIx64 ":", addr_fmt_width, addr); 1348 color_fprintf(stdout, annotate__asm_color(br), "%s", dl->al.line); 1349 annotate__branch_printf(br, addr); 1350 return 0; 1351 } 1352 1353 static int 1354 annotation_line__print(struct annotation_line *al, struct symbol *sym, u64 start, 1355 struct evsel *evsel, u64 len, int min_pcnt, int printed, 1356 int max_lines, struct annotation_line *queue, int addr_fmt_width, 1357 int percent_type) 1358 { 1359 struct disasm_line *dl = container_of(al, struct disasm_line, al); 1360 static const char *prev_line; 1361 static const char *prev_color; 1362 1363 if (al->offset != -1) { 1364 double max_percent = 0.0; 1365 int i, nr_percent = 1; 1366 const char *color; 1367 struct annotation *notes = symbol__annotation(sym); 1368 1369 for (i = 0; i < al->data_nr; i++) { 1370 double percent; 1371 1372 percent = annotation_data__percent(&al->data[i], 1373 percent_type); 1374 1375 if (percent > max_percent) 1376 max_percent = percent; 1377 } 1378 1379 if (al->data_nr > nr_percent) 1380 nr_percent = al->data_nr; 1381 1382 if (max_percent < min_pcnt) 1383 return -1; 1384 1385 if (max_lines && printed >= max_lines) 1386 return 1; 1387 1388 if (queue != NULL) { 1389 list_for_each_entry_from(queue, ¬es->src->source, node) { 1390 if (queue == al) 1391 break; 1392 annotation_line__print(queue, sym, start, evsel, len, 1393 0, 0, 1, NULL, addr_fmt_width, 1394 percent_type); 1395 } 1396 } 1397 1398 color = get_percent_color(max_percent); 1399 1400 /* 1401 * Also color the filename and line if needed, with 1402 * the same color than the percentage. Don't print it 1403 * twice for close colored addr with the same filename:line 1404 */ 1405 if (al->path) { 1406 if (!prev_line || strcmp(prev_line, al->path) 1407 || color != prev_color) { 1408 color_fprintf(stdout, color, " %s", al->path); 1409 prev_line = al->path; 1410 prev_color = color; 1411 } 1412 } 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 printf("\n"); 1435 } else if (max_lines && printed >= max_lines) 1436 return 1; 1437 else { 1438 int width = symbol_conf.show_total_period ? 12 : 8; 1439 1440 if (queue) 1441 return -1; 1442 1443 if (evsel__is_group_event(evsel)) 1444 width *= evsel->core.nr_members; 1445 1446 if (!*al->line) 1447 printf(" %*s:\n", width, " "); 1448 else 1449 printf(" %*s: %*s %s\n", width, " ", addr_fmt_width, " ", al->line); 1450 } 1451 1452 return 0; 1453 } 1454 1455 /* 1456 * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw) 1457 * which looks like following 1458 * 1459 * 0000000000415500 <_init>: 1460 * 415500: sub $0x8,%rsp 1461 * 415504: mov 0x2f5ad5(%rip),%rax # 70afe0 <_DYNAMIC+0x2f8> 1462 * 41550b: test %rax,%rax 1463 * 41550e: je 415515 <_init+0x15> 1464 * 415510: callq 416e70 <__gmon_start__@plt> 1465 * 415515: add $0x8,%rsp 1466 * 415519: retq 1467 * 1468 * it will be parsed and saved into struct disasm_line as 1469 * <offset> <name> <ops.raw> 1470 * 1471 * The offset will be a relative offset from the start of the symbol and -1 1472 * means that it's not a disassembly line so should be treated differently. 1473 * The ops.raw part will be parsed further according to type of the instruction. 1474 */ 1475 static int symbol__parse_objdump_line(struct symbol *sym, 1476 struct annotate_args *args, 1477 char *parsed_line, int *line_nr) 1478 { 1479 struct map *map = args->ms.map; 1480 struct annotation *notes = symbol__annotation(sym); 1481 struct disasm_line *dl; 1482 char *tmp; 1483 s64 line_ip, offset = -1; 1484 regmatch_t match[2]; 1485 1486 /* /filename:linenr ? Save line number and ignore. */ 1487 if (regexec(&file_lineno, parsed_line, 2, match, 0) == 0) { 1488 *line_nr = atoi(parsed_line + match[1].rm_so); 1489 return 0; 1490 } 1491 1492 /* Process hex address followed by ':'. */ 1493 line_ip = strtoull(parsed_line, &tmp, 16); 1494 if (parsed_line != tmp && tmp[0] == ':' && tmp[1] != '\0') { 1495 u64 start = map__rip_2objdump(map, sym->start), 1496 end = map__rip_2objdump(map, sym->end); 1497 1498 offset = line_ip - start; 1499 if ((u64)line_ip < start || (u64)line_ip >= end) 1500 offset = -1; 1501 else 1502 parsed_line = tmp + 1; 1503 } 1504 1505 args->offset = offset; 1506 args->line = parsed_line; 1507 args->line_nr = *line_nr; 1508 args->ms.sym = sym; 1509 1510 dl = disasm_line__new(args); 1511 (*line_nr)++; 1512 1513 if (dl == NULL) 1514 return -1; 1515 1516 if (!disasm_line__has_local_offset(dl)) { 1517 dl->ops.target.offset = dl->ops.target.addr - 1518 map__rip_2objdump(map, sym->start); 1519 dl->ops.target.offset_avail = true; 1520 } 1521 1522 /* kcore has no symbols, so add the call target symbol */ 1523 if (dl->ins.ops && ins__is_call(&dl->ins) && !dl->ops.target.sym) { 1524 struct addr_map_symbol target = { 1525 .addr = dl->ops.target.addr, 1526 .ms = { .map = map, }, 1527 }; 1528 1529 if (!maps__find_ams(args->ms.maps, &target) && 1530 target.ms.sym->start == target.al_addr) 1531 dl->ops.target.sym = target.ms.sym; 1532 } 1533 1534 annotation_line__add(&dl->al, ¬es->src->source); 1535 1536 return 0; 1537 } 1538 1539 static __attribute__((constructor)) void symbol__init_regexpr(void) 1540 { 1541 regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED); 1542 } 1543 1544 static void delete_last_nop(struct symbol *sym) 1545 { 1546 struct annotation *notes = symbol__annotation(sym); 1547 struct list_head *list = ¬es->src->source; 1548 struct disasm_line *dl; 1549 1550 while (!list_empty(list)) { 1551 dl = list_entry(list->prev, struct disasm_line, al.node); 1552 1553 if (dl->ins.ops) { 1554 if (dl->ins.ops != &nop_ops) 1555 return; 1556 } else { 1557 if (!strstr(dl->al.line, " nop ") && 1558 !strstr(dl->al.line, " nopl ") && 1559 !strstr(dl->al.line, " nopw ")) 1560 return; 1561 } 1562 1563 list_del_init(&dl->al.node); 1564 disasm_line__free(dl); 1565 } 1566 } 1567 1568 int symbol__strerror_disassemble(struct map_symbol *ms, int errnum, char *buf, size_t buflen) 1569 { 1570 struct dso *dso = ms->map->dso; 1571 1572 BUG_ON(buflen == 0); 1573 1574 if (errnum >= 0) { 1575 str_error_r(errnum, buf, buflen); 1576 return 0; 1577 } 1578 1579 switch (errnum) { 1580 case SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX: { 1581 char bf[SBUILD_ID_SIZE + 15] = " with build id "; 1582 char *build_id_msg = NULL; 1583 1584 if (dso->has_build_id) { 1585 build_id__sprintf(&dso->bid, bf + 15); 1586 build_id_msg = bf; 1587 } 1588 scnprintf(buf, buflen, 1589 "No vmlinux file%s\nwas found in the path.\n\n" 1590 "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n" 1591 "Please use:\n\n" 1592 " perf buildid-cache -vu vmlinux\n\n" 1593 "or:\n\n" 1594 " --vmlinux vmlinux\n", build_id_msg ?: ""); 1595 } 1596 break; 1597 case SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF: 1598 scnprintf(buf, buflen, "Please link with binutils's libopcode to enable BPF annotation"); 1599 break; 1600 case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP: 1601 scnprintf(buf, buflen, "Problems with arch specific instruction name regular expressions."); 1602 break; 1603 case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING: 1604 scnprintf(buf, buflen, "Problems while parsing the CPUID in the arch specific initialization."); 1605 break; 1606 case SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE: 1607 scnprintf(buf, buflen, "Invalid BPF file: %s.", dso->long_name); 1608 break; 1609 case SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF: 1610 scnprintf(buf, buflen, "The %s BPF file has no BTF section, compile with -g or use pahole -J.", 1611 dso->long_name); 1612 break; 1613 default: 1614 scnprintf(buf, buflen, "Internal error: Invalid %d error code\n", errnum); 1615 break; 1616 } 1617 1618 return 0; 1619 } 1620 1621 static int dso__disassemble_filename(struct dso *dso, char *filename, size_t filename_size) 1622 { 1623 char linkname[PATH_MAX]; 1624 char *build_id_filename; 1625 char *build_id_path = NULL; 1626 char *pos; 1627 int len; 1628 1629 if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && 1630 !dso__is_kcore(dso)) 1631 return SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX; 1632 1633 build_id_filename = dso__build_id_filename(dso, NULL, 0, false); 1634 if (build_id_filename) { 1635 __symbol__join_symfs(filename, filename_size, build_id_filename); 1636 free(build_id_filename); 1637 } else { 1638 if (dso->has_build_id) 1639 return ENOMEM; 1640 goto fallback; 1641 } 1642 1643 build_id_path = strdup(filename); 1644 if (!build_id_path) 1645 return ENOMEM; 1646 1647 /* 1648 * old style build-id cache has name of XX/XXXXXXX.. while 1649 * new style has XX/XXXXXXX../{elf,kallsyms,vdso}. 1650 * extract the build-id part of dirname in the new style only. 1651 */ 1652 pos = strrchr(build_id_path, '/'); 1653 if (pos && strlen(pos) < SBUILD_ID_SIZE - 2) 1654 dirname(build_id_path); 1655 1656 if (dso__is_kcore(dso)) 1657 goto fallback; 1658 1659 len = readlink(build_id_path, linkname, sizeof(linkname) - 1); 1660 if (len < 0) 1661 goto fallback; 1662 1663 linkname[len] = '\0'; 1664 if (strstr(linkname, DSO__NAME_KALLSYMS) || 1665 access(filename, R_OK)) { 1666 fallback: 1667 /* 1668 * If we don't have build-ids or the build-id file isn't in the 1669 * cache, or is just a kallsyms file, well, lets hope that this 1670 * DSO is the same as when 'perf record' ran. 1671 */ 1672 __symbol__join_symfs(filename, filename_size, dso->long_name); 1673 } 1674 1675 free(build_id_path); 1676 return 0; 1677 } 1678 1679 #if defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT) 1680 #define PACKAGE "perf" 1681 #include <bfd.h> 1682 #include <dis-asm.h> 1683 #include <bpf/bpf.h> 1684 #include <bpf/btf.h> 1685 #include <bpf/libbpf.h> 1686 #include <linux/btf.h> 1687 1688 static int symbol__disassemble_bpf(struct symbol *sym, 1689 struct annotate_args *args) 1690 { 1691 struct annotation *notes = symbol__annotation(sym); 1692 struct annotation_options *opts = args->options; 1693 struct bpf_prog_info_linear *info_linear; 1694 struct bpf_prog_linfo *prog_linfo = NULL; 1695 struct bpf_prog_info_node *info_node; 1696 int len = sym->end - sym->start; 1697 disassembler_ftype disassemble; 1698 struct map *map = args->ms.map; 1699 struct disassemble_info info; 1700 struct dso *dso = map->dso; 1701 int pc = 0, count, sub_id; 1702 struct btf *btf = NULL; 1703 char tpath[PATH_MAX]; 1704 size_t buf_size; 1705 int nr_skip = 0; 1706 char *buf; 1707 bfd *bfdf; 1708 int ret; 1709 FILE *s; 1710 1711 if (dso->binary_type != DSO_BINARY_TYPE__BPF_PROG_INFO) 1712 return SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE; 1713 1714 pr_debug("%s: handling sym %s addr %" PRIx64 " len %" PRIx64 "\n", __func__, 1715 sym->name, sym->start, sym->end - sym->start); 1716 1717 memset(tpath, 0, sizeof(tpath)); 1718 perf_exe(tpath, sizeof(tpath)); 1719 1720 bfdf = bfd_openr(tpath, NULL); 1721 assert(bfdf); 1722 assert(bfd_check_format(bfdf, bfd_object)); 1723 1724 s = open_memstream(&buf, &buf_size); 1725 if (!s) { 1726 ret = errno; 1727 goto out; 1728 } 1729 init_disassemble_info(&info, s, 1730 (fprintf_ftype) fprintf); 1731 1732 info.arch = bfd_get_arch(bfdf); 1733 info.mach = bfd_get_mach(bfdf); 1734 1735 info_node = perf_env__find_bpf_prog_info(dso->bpf_prog.env, 1736 dso->bpf_prog.id); 1737 if (!info_node) { 1738 ret = SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF; 1739 goto out; 1740 } 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 1838 symbol__disassemble_bpf_image(struct symbol *sym, 1839 struct annotate_args *args) 1840 { 1841 struct annotation *notes = symbol__annotation(sym); 1842 struct disasm_line *dl; 1843 1844 args->offset = -1; 1845 args->line = strdup("to be implemented"); 1846 args->line_nr = 0; 1847 dl = disasm_line__new(args); 1848 if (dl) 1849 annotation_line__add(&dl->al, ¬es->src->source); 1850 1851 free(args->line); 1852 return 0; 1853 } 1854 1855 /* 1856 * Possibly create a new version of line with tabs expanded. Returns the 1857 * existing or new line, storage is updated if a new line is allocated. If 1858 * allocation fails then NULL is returned. 1859 */ 1860 static char *expand_tabs(char *line, char **storage, size_t *storage_len) 1861 { 1862 size_t i, src, dst, len, new_storage_len, num_tabs; 1863 char *new_line; 1864 size_t line_len = strlen(line); 1865 1866 for (num_tabs = 0, i = 0; i < line_len; i++) 1867 if (line[i] == '\t') 1868 num_tabs++; 1869 1870 if (num_tabs == 0) 1871 return line; 1872 1873 /* 1874 * Space for the line and '\0', less the leading and trailing 1875 * spaces. Each tab may introduce 7 additional spaces. 1876 */ 1877 new_storage_len = line_len + 1 + (num_tabs * 7); 1878 1879 new_line = malloc(new_storage_len); 1880 if (new_line == NULL) { 1881 pr_err("Failure allocating memory for tab expansion\n"); 1882 return NULL; 1883 } 1884 1885 /* 1886 * Copy regions starting at src and expand tabs. If there are two 1887 * adjacent tabs then 'src == i', the memcpy is of size 0 and the spaces 1888 * are inserted. 1889 */ 1890 for (i = 0, src = 0, dst = 0; i < line_len && num_tabs; i++) { 1891 if (line[i] == '\t') { 1892 len = i - src; 1893 memcpy(&new_line[dst], &line[src], len); 1894 dst += len; 1895 new_line[dst++] = ' '; 1896 while (dst % 8 != 0) 1897 new_line[dst++] = ' '; 1898 src = i + 1; 1899 num_tabs--; 1900 } 1901 } 1902 1903 /* Expand the last region. */ 1904 len = line_len - src; 1905 memcpy(&new_line[dst], &line[src], len); 1906 dst += len; 1907 new_line[dst] = '\0'; 1908 1909 free(*storage); 1910 *storage = new_line; 1911 *storage_len = new_storage_len; 1912 return new_line; 1913 1914 } 1915 1916 static int symbol__disassemble(struct symbol *sym, struct annotate_args *args) 1917 { 1918 struct annotation_options *opts = args->options; 1919 struct map *map = args->ms.map; 1920 struct dso *dso = map->dso; 1921 char *command; 1922 FILE *file; 1923 char symfs_filename[PATH_MAX]; 1924 struct kcore_extract kce; 1925 bool delete_extract = false; 1926 bool decomp = false; 1927 int lineno = 0; 1928 int nline; 1929 char *line; 1930 size_t line_len; 1931 const char *objdump_argv[] = { 1932 "/bin/sh", 1933 "-c", 1934 NULL, /* Will be the objdump command to run. */ 1935 "--", 1936 NULL, /* Will be the symfs path. */ 1937 NULL, 1938 }; 1939 struct child_process objdump_process; 1940 int err = dso__disassemble_filename(dso, symfs_filename, sizeof(symfs_filename)); 1941 1942 if (err) 1943 return err; 1944 1945 pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__, 1946 symfs_filename, sym->name, map->unmap_ip(map, sym->start), 1947 map->unmap_ip(map, sym->end)); 1948 1949 pr_debug("annotating [%p] %30s : [%p] %30s\n", 1950 dso, dso->long_name, sym, sym->name); 1951 1952 if (dso->binary_type == DSO_BINARY_TYPE__BPF_PROG_INFO) { 1953 return symbol__disassemble_bpf(sym, args); 1954 } else if (dso->binary_type == DSO_BINARY_TYPE__BPF_IMAGE) { 1955 return symbol__disassemble_bpf_image(sym, args); 1956 } else if (dso__is_kcore(dso)) { 1957 kce.kcore_filename = symfs_filename; 1958 kce.addr = map__rip_2objdump(map, sym->start); 1959 kce.offs = sym->start; 1960 kce.len = sym->end - sym->start; 1961 if (!kcore_extract__create(&kce)) { 1962 delete_extract = true; 1963 strlcpy(symfs_filename, kce.extract_filename, 1964 sizeof(symfs_filename)); 1965 } 1966 } else if (dso__needs_decompress(dso)) { 1967 char tmp[KMOD_DECOMP_LEN]; 1968 1969 if (dso__decompress_kmodule_path(dso, symfs_filename, 1970 tmp, sizeof(tmp)) < 0) 1971 return -1; 1972 1973 decomp = true; 1974 strcpy(symfs_filename, tmp); 1975 } 1976 1977 err = asprintf(&command, 1978 "%s %s%s --start-address=0x%016" PRIx64 1979 " --stop-address=0x%016" PRIx64 1980 " -l -d %s %s %s %c%s%c %s%s -C \"$1\"", 1981 opts->objdump_path ?: "objdump", 1982 opts->disassembler_style ? "-M " : "", 1983 opts->disassembler_style ?: "", 1984 map__rip_2objdump(map, sym->start), 1985 map__rip_2objdump(map, sym->end), 1986 opts->show_asm_raw ? "" : "--no-show-raw-insn", 1987 opts->annotate_src ? "-S" : "", 1988 opts->prefix ? "--prefix " : "", 1989 opts->prefix ? '"' : ' ', 1990 opts->prefix ?: "", 1991 opts->prefix ? '"' : ' ', 1992 opts->prefix_strip ? "--prefix-strip=" : "", 1993 opts->prefix_strip ?: ""); 1994 1995 if (err < 0) { 1996 pr_err("Failure allocating memory for the command to run\n"); 1997 goto out_remove_tmp; 1998 } 1999 2000 pr_debug("Executing: %s\n", command); 2001 2002 objdump_argv[2] = command; 2003 objdump_argv[4] = symfs_filename; 2004 2005 /* Create a pipe to read from for stdout */ 2006 memset(&objdump_process, 0, sizeof(objdump_process)); 2007 objdump_process.argv = objdump_argv; 2008 objdump_process.out = -1; 2009 if (start_command(&objdump_process)) { 2010 pr_err("Failure starting to run %s\n", command); 2011 err = -1; 2012 goto out_free_command; 2013 } 2014 2015 file = fdopen(objdump_process.out, "r"); 2016 if (!file) { 2017 pr_err("Failure creating FILE stream for %s\n", command); 2018 /* 2019 * If we were using debug info should retry with 2020 * original binary. 2021 */ 2022 err = -1; 2023 goto out_close_stdout; 2024 } 2025 2026 /* Storage for getline. */ 2027 line = NULL; 2028 line_len = 0; 2029 2030 nline = 0; 2031 while (!feof(file)) { 2032 const char *match; 2033 char *expanded_line; 2034 2035 if (getline(&line, &line_len, file) < 0 || !line) 2036 break; 2037 2038 /* Skip lines containing "filename:" */ 2039 match = strstr(line, symfs_filename); 2040 if (match && match[strlen(symfs_filename)] == ':') 2041 continue; 2042 2043 expanded_line = strim(line); 2044 expanded_line = expand_tabs(expanded_line, &line, &line_len); 2045 if (!expanded_line) 2046 break; 2047 2048 /* 2049 * The source code line number (lineno) needs to be kept in 2050 * across calls to symbol__parse_objdump_line(), so that it 2051 * can associate it with the instructions till the next one. 2052 * See disasm_line__new() and struct disasm_line::line_nr. 2053 */ 2054 if (symbol__parse_objdump_line(sym, args, expanded_line, 2055 &lineno) < 0) 2056 break; 2057 nline++; 2058 } 2059 free(line); 2060 2061 err = finish_command(&objdump_process); 2062 if (err) 2063 pr_err("Error running %s\n", command); 2064 2065 if (nline == 0) { 2066 err = -1; 2067 pr_err("No output from %s\n", command); 2068 } 2069 2070 /* 2071 * kallsyms does not have symbol sizes so there may a nop at the end. 2072 * Remove it. 2073 */ 2074 if (dso__is_kcore(dso)) 2075 delete_last_nop(sym); 2076 2077 fclose(file); 2078 2079 out_close_stdout: 2080 close(objdump_process.out); 2081 2082 out_free_command: 2083 free(command); 2084 2085 out_remove_tmp: 2086 if (decomp) 2087 unlink(symfs_filename); 2088 2089 if (delete_extract) 2090 kcore_extract__delete(&kce); 2091 2092 return err; 2093 } 2094 2095 static void calc_percent(struct sym_hist *sym_hist, 2096 struct hists *hists, 2097 struct annotation_data *data, 2098 s64 offset, s64 end) 2099 { 2100 unsigned int hits = 0; 2101 u64 period = 0; 2102 2103 while (offset < end) { 2104 hits += sym_hist->addr[offset].nr_samples; 2105 period += sym_hist->addr[offset].period; 2106 ++offset; 2107 } 2108 2109 if (sym_hist->nr_samples) { 2110 data->he.period = period; 2111 data->he.nr_samples = hits; 2112 data->percent[PERCENT_HITS_LOCAL] = 100.0 * hits / sym_hist->nr_samples; 2113 } 2114 2115 if (hists->stats.nr_non_filtered_samples) 2116 data->percent[PERCENT_HITS_GLOBAL] = 100.0 * hits / hists->stats.nr_non_filtered_samples; 2117 2118 if (sym_hist->period) 2119 data->percent[PERCENT_PERIOD_LOCAL] = 100.0 * period / sym_hist->period; 2120 2121 if (hists->stats.total_period) 2122 data->percent[PERCENT_PERIOD_GLOBAL] = 100.0 * period / hists->stats.total_period; 2123 } 2124 2125 static void annotation__calc_percent(struct annotation *notes, 2126 struct evsel *leader, s64 len) 2127 { 2128 struct annotation_line *al, *next; 2129 struct evsel *evsel; 2130 2131 list_for_each_entry(al, ¬es->src->source, node) { 2132 s64 end; 2133 int i = 0; 2134 2135 if (al->offset == -1) 2136 continue; 2137 2138 next = annotation_line__next(al, ¬es->src->source); 2139 end = next ? next->offset : len; 2140 2141 for_each_group_evsel(evsel, leader) { 2142 struct hists *hists = evsel__hists(evsel); 2143 struct annotation_data *data; 2144 struct sym_hist *sym_hist; 2145 2146 BUG_ON(i >= al->data_nr); 2147 2148 sym_hist = annotation__histogram(notes, evsel->idx); 2149 data = &al->data[i++]; 2150 2151 calc_percent(sym_hist, hists, data, al->offset, end); 2152 } 2153 } 2154 } 2155 2156 void symbol__calc_percent(struct symbol *sym, struct evsel *evsel) 2157 { 2158 struct annotation *notes = symbol__annotation(sym); 2159 2160 annotation__calc_percent(notes, evsel, symbol__size(sym)); 2161 } 2162 2163 int symbol__annotate(struct map_symbol *ms, struct evsel *evsel, 2164 struct annotation_options *options, struct arch **parch) 2165 { 2166 struct symbol *sym = ms->sym; 2167 struct annotation *notes = symbol__annotation(sym); 2168 struct annotate_args args = { 2169 .evsel = evsel, 2170 .options = options, 2171 }; 2172 struct perf_env *env = evsel__env(evsel); 2173 const char *arch_name = perf_env__arch(env); 2174 struct arch *arch; 2175 int err; 2176 2177 if (!arch_name) 2178 return errno; 2179 2180 args.arch = arch = arch__find(arch_name); 2181 if (arch == NULL) 2182 return ENOTSUP; 2183 2184 if (parch) 2185 *parch = arch; 2186 2187 if (arch->init) { 2188 err = arch->init(arch, env ? env->cpuid : NULL); 2189 if (err) { 2190 pr_err("%s: failed to initialize %s arch priv area\n", __func__, arch->name); 2191 return err; 2192 } 2193 } 2194 2195 args.ms = *ms; 2196 notes->start = map__rip_2objdump(ms->map, sym->start); 2197 2198 return symbol__disassemble(sym, &args); 2199 } 2200 2201 static void insert_source_line(struct rb_root *root, struct annotation_line *al, 2202 struct annotation_options *opts) 2203 { 2204 struct annotation_line *iter; 2205 struct rb_node **p = &root->rb_node; 2206 struct rb_node *parent = NULL; 2207 int i, ret; 2208 2209 while (*p != NULL) { 2210 parent = *p; 2211 iter = rb_entry(parent, struct annotation_line, rb_node); 2212 2213 ret = strcmp(iter->path, al->path); 2214 if (ret == 0) { 2215 for (i = 0; i < al->data_nr; i++) { 2216 iter->data[i].percent_sum += annotation_data__percent(&al->data[i], 2217 opts->percent_type); 2218 } 2219 return; 2220 } 2221 2222 if (ret < 0) 2223 p = &(*p)->rb_left; 2224 else 2225 p = &(*p)->rb_right; 2226 } 2227 2228 for (i = 0; i < al->data_nr; i++) { 2229 al->data[i].percent_sum = annotation_data__percent(&al->data[i], 2230 opts->percent_type); 2231 } 2232 2233 rb_link_node(&al->rb_node, parent, p); 2234 rb_insert_color(&al->rb_node, root); 2235 } 2236 2237 static int cmp_source_line(struct annotation_line *a, struct annotation_line *b) 2238 { 2239 int i; 2240 2241 for (i = 0; i < a->data_nr; i++) { 2242 if (a->data[i].percent_sum == b->data[i].percent_sum) 2243 continue; 2244 return a->data[i].percent_sum > b->data[i].percent_sum; 2245 } 2246 2247 return 0; 2248 } 2249 2250 static void __resort_source_line(struct rb_root *root, struct annotation_line *al) 2251 { 2252 struct annotation_line *iter; 2253 struct rb_node **p = &root->rb_node; 2254 struct rb_node *parent = NULL; 2255 2256 while (*p != NULL) { 2257 parent = *p; 2258 iter = rb_entry(parent, struct annotation_line, rb_node); 2259 2260 if (cmp_source_line(al, iter)) 2261 p = &(*p)->rb_left; 2262 else 2263 p = &(*p)->rb_right; 2264 } 2265 2266 rb_link_node(&al->rb_node, parent, p); 2267 rb_insert_color(&al->rb_node, root); 2268 } 2269 2270 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root) 2271 { 2272 struct annotation_line *al; 2273 struct rb_node *node; 2274 2275 node = rb_first(src_root); 2276 while (node) { 2277 struct rb_node *next; 2278 2279 al = rb_entry(node, struct annotation_line, rb_node); 2280 next = rb_next(node); 2281 rb_erase(node, src_root); 2282 2283 __resort_source_line(dest_root, al); 2284 node = next; 2285 } 2286 } 2287 2288 static void print_summary(struct rb_root *root, const char *filename) 2289 { 2290 struct annotation_line *al; 2291 struct rb_node *node; 2292 2293 printf("\nSorted summary for file %s\n", filename); 2294 printf("----------------------------------------------\n\n"); 2295 2296 if (RB_EMPTY_ROOT(root)) { 2297 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN); 2298 return; 2299 } 2300 2301 node = rb_first(root); 2302 while (node) { 2303 double percent, percent_max = 0.0; 2304 const char *color; 2305 char *path; 2306 int i; 2307 2308 al = rb_entry(node, struct annotation_line, rb_node); 2309 for (i = 0; i < al->data_nr; i++) { 2310 percent = al->data[i].percent_sum; 2311 color = get_percent_color(percent); 2312 color_fprintf(stdout, color, " %7.2f", percent); 2313 2314 if (percent > percent_max) 2315 percent_max = percent; 2316 } 2317 2318 path = al->path; 2319 color = get_percent_color(percent_max); 2320 color_fprintf(stdout, color, " %s\n", path); 2321 2322 node = rb_next(node); 2323 } 2324 } 2325 2326 static void symbol__annotate_hits(struct symbol *sym, struct evsel *evsel) 2327 { 2328 struct annotation *notes = symbol__annotation(sym); 2329 struct sym_hist *h = annotation__histogram(notes, evsel->idx); 2330 u64 len = symbol__size(sym), offset; 2331 2332 for (offset = 0; offset < len; ++offset) 2333 if (h->addr[offset].nr_samples != 0) 2334 printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2, 2335 sym->start + offset, h->addr[offset].nr_samples); 2336 printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->nr_samples", h->nr_samples); 2337 } 2338 2339 static int annotated_source__addr_fmt_width(struct list_head *lines, u64 start) 2340 { 2341 char bf[32]; 2342 struct annotation_line *line; 2343 2344 list_for_each_entry_reverse(line, lines, node) { 2345 if (line->offset != -1) 2346 return scnprintf(bf, sizeof(bf), "%" PRIx64, start + line->offset); 2347 } 2348 2349 return 0; 2350 } 2351 2352 int symbol__annotate_printf(struct map_symbol *ms, struct evsel *evsel, 2353 struct annotation_options *opts) 2354 { 2355 struct map *map = ms->map; 2356 struct symbol *sym = ms->sym; 2357 struct dso *dso = map->dso; 2358 char *filename; 2359 const char *d_filename; 2360 const char *evsel_name = evsel__name(evsel); 2361 struct annotation *notes = symbol__annotation(sym); 2362 struct sym_hist *h = annotation__histogram(notes, evsel->idx); 2363 struct annotation_line *pos, *queue = NULL; 2364 u64 start = map__rip_2objdump(map, sym->start); 2365 int printed = 2, queue_len = 0, addr_fmt_width; 2366 int more = 0; 2367 bool context = opts->context; 2368 u64 len; 2369 int width = symbol_conf.show_total_period ? 12 : 8; 2370 int graph_dotted_len; 2371 char buf[512]; 2372 2373 filename = strdup(dso->long_name); 2374 if (!filename) 2375 return -ENOMEM; 2376 2377 if (opts->full_path) 2378 d_filename = filename; 2379 else 2380 d_filename = basename(filename); 2381 2382 len = symbol__size(sym); 2383 2384 if (evsel__is_group_event(evsel)) { 2385 width *= evsel->core.nr_members; 2386 evsel__group_desc(evsel, buf, sizeof(buf)); 2387 evsel_name = buf; 2388 } 2389 2390 graph_dotted_len = printf(" %-*.*s| Source code & Disassembly of %s for %s (%" PRIu64 " samples, " 2391 "percent: %s)\n", 2392 width, width, symbol_conf.show_total_period ? "Period" : 2393 symbol_conf.show_nr_samples ? "Samples" : "Percent", 2394 d_filename, evsel_name, h->nr_samples, 2395 percent_type_str(opts->percent_type)); 2396 2397 printf("%-*.*s----\n", 2398 graph_dotted_len, graph_dotted_len, graph_dotted_line); 2399 2400 if (verbose > 0) 2401 symbol__annotate_hits(sym, evsel); 2402 2403 addr_fmt_width = annotated_source__addr_fmt_width(¬es->src->source, start); 2404 2405 list_for_each_entry(pos, ¬es->src->source, node) { 2406 int err; 2407 2408 if (context && queue == NULL) { 2409 queue = pos; 2410 queue_len = 0; 2411 } 2412 2413 err = annotation_line__print(pos, sym, start, evsel, len, 2414 opts->min_pcnt, printed, opts->max_lines, 2415 queue, addr_fmt_width, opts->percent_type); 2416 2417 switch (err) { 2418 case 0: 2419 ++printed; 2420 if (context) { 2421 printed += queue_len; 2422 queue = NULL; 2423 queue_len = 0; 2424 } 2425 break; 2426 case 1: 2427 /* filtered by max_lines */ 2428 ++more; 2429 break; 2430 case -1: 2431 default: 2432 /* 2433 * Filtered by min_pcnt or non IP lines when 2434 * context != 0 2435 */ 2436 if (!context) 2437 break; 2438 if (queue_len == context) 2439 queue = list_entry(queue->node.next, typeof(*queue), node); 2440 else 2441 ++queue_len; 2442 break; 2443 } 2444 } 2445 2446 free(filename); 2447 2448 return more; 2449 } 2450 2451 static void FILE__set_percent_color(void *fp __maybe_unused, 2452 double percent __maybe_unused, 2453 bool current __maybe_unused) 2454 { 2455 } 2456 2457 static int FILE__set_jumps_percent_color(void *fp __maybe_unused, 2458 int nr __maybe_unused, bool current __maybe_unused) 2459 { 2460 return 0; 2461 } 2462 2463 static int FILE__set_color(void *fp __maybe_unused, int color __maybe_unused) 2464 { 2465 return 0; 2466 } 2467 2468 static void FILE__printf(void *fp, const char *fmt, ...) 2469 { 2470 va_list args; 2471 2472 va_start(args, fmt); 2473 vfprintf(fp, fmt, args); 2474 va_end(args); 2475 } 2476 2477 static void FILE__write_graph(void *fp, int graph) 2478 { 2479 const char *s; 2480 switch (graph) { 2481 2482 case DARROW_CHAR: s = "↓"; break; 2483 case UARROW_CHAR: s = "↑"; break; 2484 case LARROW_CHAR: s = "←"; break; 2485 case RARROW_CHAR: s = "→"; break; 2486 default: s = "?"; break; 2487 } 2488 2489 fputs(s, fp); 2490 } 2491 2492 static int symbol__annotate_fprintf2(struct symbol *sym, FILE *fp, 2493 struct annotation_options *opts) 2494 { 2495 struct annotation *notes = symbol__annotation(sym); 2496 struct annotation_write_ops wops = { 2497 .first_line = true, 2498 .obj = fp, 2499 .set_color = FILE__set_color, 2500 .set_percent_color = FILE__set_percent_color, 2501 .set_jumps_percent_color = FILE__set_jumps_percent_color, 2502 .printf = FILE__printf, 2503 .write_graph = FILE__write_graph, 2504 }; 2505 struct annotation_line *al; 2506 2507 list_for_each_entry(al, ¬es->src->source, node) { 2508 if (annotation_line__filter(al, notes)) 2509 continue; 2510 annotation_line__write(al, notes, &wops, opts); 2511 fputc('\n', fp); 2512 wops.first_line = false; 2513 } 2514 2515 return 0; 2516 } 2517 2518 int map_symbol__annotation_dump(struct map_symbol *ms, struct evsel *evsel, 2519 struct annotation_options *opts) 2520 { 2521 const char *ev_name = evsel__name(evsel); 2522 char buf[1024]; 2523 char *filename; 2524 int err = -1; 2525 FILE *fp; 2526 2527 if (asprintf(&filename, "%s.annotation", ms->sym->name) < 0) 2528 return -1; 2529 2530 fp = fopen(filename, "w"); 2531 if (fp == NULL) 2532 goto out_free_filename; 2533 2534 if (evsel__is_group_event(evsel)) { 2535 evsel__group_desc(evsel, buf, sizeof(buf)); 2536 ev_name = buf; 2537 } 2538 2539 fprintf(fp, "%s() %s\nEvent: %s\n\n", 2540 ms->sym->name, ms->map->dso->long_name, ev_name); 2541 symbol__annotate_fprintf2(ms->sym, fp, opts); 2542 2543 fclose(fp); 2544 err = 0; 2545 out_free_filename: 2546 free(filename); 2547 return err; 2548 } 2549 2550 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx) 2551 { 2552 struct annotation *notes = symbol__annotation(sym); 2553 struct sym_hist *h = annotation__histogram(notes, evidx); 2554 2555 memset(h, 0, notes->src->sizeof_sym_hist); 2556 } 2557 2558 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx) 2559 { 2560 struct annotation *notes = symbol__annotation(sym); 2561 struct sym_hist *h = annotation__histogram(notes, evidx); 2562 int len = symbol__size(sym), offset; 2563 2564 h->nr_samples = 0; 2565 for (offset = 0; offset < len; ++offset) { 2566 h->addr[offset].nr_samples = h->addr[offset].nr_samples * 7 / 8; 2567 h->nr_samples += h->addr[offset].nr_samples; 2568 } 2569 } 2570 2571 void annotated_source__purge(struct annotated_source *as) 2572 { 2573 struct annotation_line *al, *n; 2574 2575 list_for_each_entry_safe(al, n, &as->source, node) { 2576 list_del_init(&al->node); 2577 disasm_line__free(disasm_line(al)); 2578 } 2579 } 2580 2581 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp) 2582 { 2583 size_t printed; 2584 2585 if (dl->al.offset == -1) 2586 return fprintf(fp, "%s\n", dl->al.line); 2587 2588 printed = fprintf(fp, "%#" PRIx64 " %s", dl->al.offset, dl->ins.name); 2589 2590 if (dl->ops.raw[0] != '\0') { 2591 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ", 2592 dl->ops.raw); 2593 } 2594 2595 return printed + fprintf(fp, "\n"); 2596 } 2597 2598 size_t disasm__fprintf(struct list_head *head, FILE *fp) 2599 { 2600 struct disasm_line *pos; 2601 size_t printed = 0; 2602 2603 list_for_each_entry(pos, head, al.node) 2604 printed += disasm_line__fprintf(pos, fp); 2605 2606 return printed; 2607 } 2608 2609 bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym) 2610 { 2611 if (!dl || !dl->ins.ops || !ins__is_jump(&dl->ins) || 2612 !disasm_line__has_local_offset(dl) || dl->ops.target.offset < 0 || 2613 dl->ops.target.offset >= (s64)symbol__size(sym)) 2614 return false; 2615 2616 return true; 2617 } 2618 2619 void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym) 2620 { 2621 u64 offset, size = symbol__size(sym); 2622 2623 /* PLT symbols contain external offsets */ 2624 if (strstr(sym->name, "@plt")) 2625 return; 2626 2627 for (offset = 0; offset < size; ++offset) { 2628 struct annotation_line *al = notes->offsets[offset]; 2629 struct disasm_line *dl; 2630 2631 dl = disasm_line(al); 2632 2633 if (!disasm_line__is_valid_local_jump(dl, sym)) 2634 continue; 2635 2636 al = notes->offsets[dl->ops.target.offset]; 2637 2638 /* 2639 * FIXME: Oops, no jump target? Buggy disassembler? Or do we 2640 * have to adjust to the previous offset? 2641 */ 2642 if (al == NULL) 2643 continue; 2644 2645 if (++al->jump_sources > notes->max_jump_sources) 2646 notes->max_jump_sources = al->jump_sources; 2647 } 2648 } 2649 2650 void annotation__set_offsets(struct annotation *notes, s64 size) 2651 { 2652 struct annotation_line *al; 2653 2654 notes->max_line_len = 0; 2655 notes->nr_entries = 0; 2656 notes->nr_asm_entries = 0; 2657 2658 list_for_each_entry(al, ¬es->src->source, node) { 2659 size_t line_len = strlen(al->line); 2660 2661 if (notes->max_line_len < line_len) 2662 notes->max_line_len = line_len; 2663 al->idx = notes->nr_entries++; 2664 if (al->offset != -1) { 2665 al->idx_asm = notes->nr_asm_entries++; 2666 /* 2667 * FIXME: short term bandaid to cope with assembly 2668 * routines that comes with labels in the same column 2669 * as the address in objdump, sigh. 2670 * 2671 * E.g. copy_user_generic_unrolled 2672 */ 2673 if (al->offset < size) 2674 notes->offsets[al->offset] = al; 2675 } else 2676 al->idx_asm = -1; 2677 } 2678 } 2679 2680 static inline int width_jumps(int n) 2681 { 2682 if (n >= 100) 2683 return 5; 2684 if (n / 10) 2685 return 2; 2686 return 1; 2687 } 2688 2689 static int annotation__max_ins_name(struct annotation *notes) 2690 { 2691 int max_name = 0, len; 2692 struct annotation_line *al; 2693 2694 list_for_each_entry(al, ¬es->src->source, node) { 2695 if (al->offset == -1) 2696 continue; 2697 2698 len = strlen(disasm_line(al)->ins.name); 2699 if (max_name < len) 2700 max_name = len; 2701 } 2702 2703 return max_name; 2704 } 2705 2706 void annotation__init_column_widths(struct annotation *notes, struct symbol *sym) 2707 { 2708 notes->widths.addr = notes->widths.target = 2709 notes->widths.min_addr = hex_width(symbol__size(sym)); 2710 notes->widths.max_addr = hex_width(sym->end); 2711 notes->widths.jumps = width_jumps(notes->max_jump_sources); 2712 notes->widths.max_ins_name = annotation__max_ins_name(notes); 2713 } 2714 2715 void annotation__update_column_widths(struct annotation *notes) 2716 { 2717 if (notes->options->use_offset) 2718 notes->widths.target = notes->widths.min_addr; 2719 else 2720 notes->widths.target = notes->widths.max_addr; 2721 2722 notes->widths.addr = notes->widths.target; 2723 2724 if (notes->options->show_nr_jumps) 2725 notes->widths.addr += notes->widths.jumps + 1; 2726 } 2727 2728 static void annotation__calc_lines(struct annotation *notes, struct map *map, 2729 struct rb_root *root, 2730 struct annotation_options *opts) 2731 { 2732 struct annotation_line *al; 2733 struct rb_root tmp_root = RB_ROOT; 2734 2735 list_for_each_entry(al, ¬es->src->source, node) { 2736 double percent_max = 0.0; 2737 int i; 2738 2739 for (i = 0; i < al->data_nr; i++) { 2740 double percent; 2741 2742 percent = annotation_data__percent(&al->data[i], 2743 opts->percent_type); 2744 2745 if (percent > percent_max) 2746 percent_max = percent; 2747 } 2748 2749 if (percent_max <= 0.5) 2750 continue; 2751 2752 al->path = get_srcline(map->dso, notes->start + al->offset, NULL, 2753 false, true, notes->start + al->offset); 2754 insert_source_line(&tmp_root, al, opts); 2755 } 2756 2757 resort_source_line(root, &tmp_root); 2758 } 2759 2760 static void symbol__calc_lines(struct map_symbol *ms, struct rb_root *root, 2761 struct annotation_options *opts) 2762 { 2763 struct annotation *notes = symbol__annotation(ms->sym); 2764 2765 annotation__calc_lines(notes, ms->map, root, opts); 2766 } 2767 2768 int symbol__tty_annotate2(struct map_symbol *ms, struct evsel *evsel, 2769 struct annotation_options *opts) 2770 { 2771 struct dso *dso = ms->map->dso; 2772 struct symbol *sym = ms->sym; 2773 struct rb_root source_line = RB_ROOT; 2774 struct hists *hists = evsel__hists(evsel); 2775 char buf[1024]; 2776 2777 if (symbol__annotate2(ms, evsel, opts, NULL) < 0) 2778 return -1; 2779 2780 if (opts->print_lines) { 2781 srcline_full_filename = opts->full_path; 2782 symbol__calc_lines(ms, &source_line, opts); 2783 print_summary(&source_line, dso->long_name); 2784 } 2785 2786 hists__scnprintf_title(hists, buf, sizeof(buf)); 2787 fprintf(stdout, "%s, [percent: %s]\n%s() %s\n", 2788 buf, percent_type_str(opts->percent_type), sym->name, dso->long_name); 2789 symbol__annotate_fprintf2(sym, stdout, opts); 2790 2791 annotated_source__purge(symbol__annotation(sym)->src); 2792 2793 return 0; 2794 } 2795 2796 int symbol__tty_annotate(struct map_symbol *ms, struct evsel *evsel, 2797 struct annotation_options *opts) 2798 { 2799 struct dso *dso = ms->map->dso; 2800 struct symbol *sym = ms->sym; 2801 struct rb_root source_line = RB_ROOT; 2802 2803 if (symbol__annotate(ms, evsel, opts, NULL) < 0) 2804 return -1; 2805 2806 symbol__calc_percent(sym, evsel); 2807 2808 if (opts->print_lines) { 2809 srcline_full_filename = opts->full_path; 2810 symbol__calc_lines(ms, &source_line, opts); 2811 print_summary(&source_line, dso->long_name); 2812 } 2813 2814 symbol__annotate_printf(ms, evsel, opts); 2815 2816 annotated_source__purge(symbol__annotation(sym)->src); 2817 2818 return 0; 2819 } 2820 2821 bool ui__has_annotation(void) 2822 { 2823 return use_browser == 1 && perf_hpp_list.sym; 2824 } 2825 2826 2827 static double annotation_line__max_percent(struct annotation_line *al, 2828 struct annotation *notes, 2829 unsigned int percent_type) 2830 { 2831 double percent_max = 0.0; 2832 int i; 2833 2834 for (i = 0; i < notes->nr_events; i++) { 2835 double percent; 2836 2837 percent = annotation_data__percent(&al->data[i], 2838 percent_type); 2839 2840 if (percent > percent_max) 2841 percent_max = percent; 2842 } 2843 2844 return percent_max; 2845 } 2846 2847 static void disasm_line__write(struct disasm_line *dl, struct annotation *notes, 2848 void *obj, char *bf, size_t size, 2849 void (*obj__printf)(void *obj, const char *fmt, ...), 2850 void (*obj__write_graph)(void *obj, int graph)) 2851 { 2852 if (dl->ins.ops && dl->ins.ops->scnprintf) { 2853 if (ins__is_jump(&dl->ins)) { 2854 bool fwd; 2855 2856 if (dl->ops.target.outside) 2857 goto call_like; 2858 fwd = dl->ops.target.offset > dl->al.offset; 2859 obj__write_graph(obj, fwd ? DARROW_CHAR : UARROW_CHAR); 2860 obj__printf(obj, " "); 2861 } else if (ins__is_call(&dl->ins)) { 2862 call_like: 2863 obj__write_graph(obj, RARROW_CHAR); 2864 obj__printf(obj, " "); 2865 } else if (ins__is_ret(&dl->ins)) { 2866 obj__write_graph(obj, LARROW_CHAR); 2867 obj__printf(obj, " "); 2868 } else { 2869 obj__printf(obj, " "); 2870 } 2871 } else { 2872 obj__printf(obj, " "); 2873 } 2874 2875 disasm_line__scnprintf(dl, bf, size, !notes->options->use_offset, notes->widths.max_ins_name); 2876 } 2877 2878 static void ipc_coverage_string(char *bf, int size, struct annotation *notes) 2879 { 2880 double ipc = 0.0, coverage = 0.0; 2881 2882 if (notes->hit_cycles) 2883 ipc = notes->hit_insn / ((double)notes->hit_cycles); 2884 2885 if (notes->total_insn) { 2886 coverage = notes->cover_insn * 100.0 / 2887 ((double)notes->total_insn); 2888 } 2889 2890 scnprintf(bf, size, "(Average IPC: %.2f, IPC Coverage: %.1f%%)", 2891 ipc, coverage); 2892 } 2893 2894 static void __annotation_line__write(struct annotation_line *al, struct annotation *notes, 2895 bool first_line, bool current_entry, bool change_color, int width, 2896 void *obj, unsigned int percent_type, 2897 int (*obj__set_color)(void *obj, int color), 2898 void (*obj__set_percent_color)(void *obj, double percent, bool current), 2899 int (*obj__set_jumps_percent_color)(void *obj, int nr, bool current), 2900 void (*obj__printf)(void *obj, const char *fmt, ...), 2901 void (*obj__write_graph)(void *obj, int graph)) 2902 2903 { 2904 double percent_max = annotation_line__max_percent(al, notes, percent_type); 2905 int pcnt_width = annotation__pcnt_width(notes), 2906 cycles_width = annotation__cycles_width(notes); 2907 bool show_title = false; 2908 char bf[256]; 2909 int printed; 2910 2911 if (first_line && (al->offset == -1 || percent_max == 0.0)) { 2912 if (notes->have_cycles) { 2913 if (al->ipc == 0.0 && al->cycles == 0) 2914 show_title = true; 2915 } else 2916 show_title = true; 2917 } 2918 2919 if (al->offset != -1 && percent_max != 0.0) { 2920 int i; 2921 2922 for (i = 0; i < notes->nr_events; i++) { 2923 double percent; 2924 2925 percent = annotation_data__percent(&al->data[i], percent_type); 2926 2927 obj__set_percent_color(obj, percent, current_entry); 2928 if (symbol_conf.show_total_period) { 2929 obj__printf(obj, "%11" PRIu64 " ", al->data[i].he.period); 2930 } else if (symbol_conf.show_nr_samples) { 2931 obj__printf(obj, "%6" PRIu64 " ", 2932 al->data[i].he.nr_samples); 2933 } else { 2934 obj__printf(obj, "%6.2f ", percent); 2935 } 2936 } 2937 } else { 2938 obj__set_percent_color(obj, 0, current_entry); 2939 2940 if (!show_title) 2941 obj__printf(obj, "%-*s", pcnt_width, " "); 2942 else { 2943 obj__printf(obj, "%-*s", pcnt_width, 2944 symbol_conf.show_total_period ? "Period" : 2945 symbol_conf.show_nr_samples ? "Samples" : "Percent"); 2946 } 2947 } 2948 2949 if (notes->have_cycles) { 2950 if (al->ipc) 2951 obj__printf(obj, "%*.2f ", ANNOTATION__IPC_WIDTH - 1, al->ipc); 2952 else if (!show_title) 2953 obj__printf(obj, "%*s", ANNOTATION__IPC_WIDTH, " "); 2954 else 2955 obj__printf(obj, "%*s ", ANNOTATION__IPC_WIDTH - 1, "IPC"); 2956 2957 if (!notes->options->show_minmax_cycle) { 2958 if (al->cycles) 2959 obj__printf(obj, "%*" PRIu64 " ", 2960 ANNOTATION__CYCLES_WIDTH - 1, al->cycles); 2961 else if (!show_title) 2962 obj__printf(obj, "%*s", 2963 ANNOTATION__CYCLES_WIDTH, " "); 2964 else 2965 obj__printf(obj, "%*s ", 2966 ANNOTATION__CYCLES_WIDTH - 1, 2967 "Cycle"); 2968 } else { 2969 if (al->cycles) { 2970 char str[32]; 2971 2972 scnprintf(str, sizeof(str), 2973 "%" PRIu64 "(%" PRIu64 "/%" PRIu64 ")", 2974 al->cycles, al->cycles_min, 2975 al->cycles_max); 2976 2977 obj__printf(obj, "%*s ", 2978 ANNOTATION__MINMAX_CYCLES_WIDTH - 1, 2979 str); 2980 } else if (!show_title) 2981 obj__printf(obj, "%*s", 2982 ANNOTATION__MINMAX_CYCLES_WIDTH, 2983 " "); 2984 else 2985 obj__printf(obj, "%*s ", 2986 ANNOTATION__MINMAX_CYCLES_WIDTH - 1, 2987 "Cycle(min/max)"); 2988 } 2989 2990 if (show_title && !*al->line) { 2991 ipc_coverage_string(bf, sizeof(bf), notes); 2992 obj__printf(obj, "%*s", ANNOTATION__AVG_IPC_WIDTH, bf); 2993 } 2994 } 2995 2996 obj__printf(obj, " "); 2997 2998 if (!*al->line) 2999 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width, " "); 3000 else if (al->offset == -1) { 3001 if (al->line_nr && notes->options->show_linenr) 3002 printed = scnprintf(bf, sizeof(bf), "%-*d ", notes->widths.addr + 1, al->line_nr); 3003 else 3004 printed = scnprintf(bf, sizeof(bf), "%-*s ", notes->widths.addr, " "); 3005 obj__printf(obj, bf); 3006 obj__printf(obj, "%-*s", width - printed - pcnt_width - cycles_width + 1, al->line); 3007 } else { 3008 u64 addr = al->offset; 3009 int color = -1; 3010 3011 if (!notes->options->use_offset) 3012 addr += notes->start; 3013 3014 if (!notes->options->use_offset) { 3015 printed = scnprintf(bf, sizeof(bf), "%" PRIx64 ": ", addr); 3016 } else { 3017 if (al->jump_sources && 3018 notes->options->offset_level >= ANNOTATION__OFFSET_JUMP_TARGETS) { 3019 if (notes->options->show_nr_jumps) { 3020 int prev; 3021 printed = scnprintf(bf, sizeof(bf), "%*d ", 3022 notes->widths.jumps, 3023 al->jump_sources); 3024 prev = obj__set_jumps_percent_color(obj, al->jump_sources, 3025 current_entry); 3026 obj__printf(obj, bf); 3027 obj__set_color(obj, prev); 3028 } 3029 print_addr: 3030 printed = scnprintf(bf, sizeof(bf), "%*" PRIx64 ": ", 3031 notes->widths.target, addr); 3032 } else if (ins__is_call(&disasm_line(al)->ins) && 3033 notes->options->offset_level >= ANNOTATION__OFFSET_CALL) { 3034 goto print_addr; 3035 } else if (notes->options->offset_level == ANNOTATION__MAX_OFFSET_LEVEL) { 3036 goto print_addr; 3037 } else { 3038 printed = scnprintf(bf, sizeof(bf), "%-*s ", 3039 notes->widths.addr, " "); 3040 } 3041 } 3042 3043 if (change_color) 3044 color = obj__set_color(obj, HE_COLORSET_ADDR); 3045 obj__printf(obj, bf); 3046 if (change_color) 3047 obj__set_color(obj, color); 3048 3049 disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf), obj__printf, obj__write_graph); 3050 3051 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width - 3 - printed, bf); 3052 } 3053 3054 } 3055 3056 void annotation_line__write(struct annotation_line *al, struct annotation *notes, 3057 struct annotation_write_ops *wops, 3058 struct annotation_options *opts) 3059 { 3060 __annotation_line__write(al, notes, wops->first_line, wops->current_entry, 3061 wops->change_color, wops->width, wops->obj, 3062 opts->percent_type, 3063 wops->set_color, wops->set_percent_color, 3064 wops->set_jumps_percent_color, wops->printf, 3065 wops->write_graph); 3066 } 3067 3068 int symbol__annotate2(struct map_symbol *ms, struct evsel *evsel, 3069 struct annotation_options *options, struct arch **parch) 3070 { 3071 struct symbol *sym = ms->sym; 3072 struct annotation *notes = symbol__annotation(sym); 3073 size_t size = symbol__size(sym); 3074 int nr_pcnt = 1, err; 3075 3076 notes->offsets = zalloc(size * sizeof(struct annotation_line *)); 3077 if (notes->offsets == NULL) 3078 return ENOMEM; 3079 3080 if (evsel__is_group_event(evsel)) 3081 nr_pcnt = evsel->core.nr_members; 3082 3083 err = symbol__annotate(ms, evsel, options, parch); 3084 if (err) 3085 goto out_free_offsets; 3086 3087 notes->options = options; 3088 3089 symbol__calc_percent(sym, evsel); 3090 3091 annotation__set_offsets(notes, size); 3092 annotation__mark_jump_targets(notes, sym); 3093 annotation__compute_ipc(notes, size); 3094 annotation__init_column_widths(notes, sym); 3095 notes->nr_events = nr_pcnt; 3096 3097 annotation__update_column_widths(notes); 3098 sym->annotate2 = true; 3099 3100 return 0; 3101 3102 out_free_offsets: 3103 zfree(¬es->offsets); 3104 return err; 3105 } 3106 3107 static int annotation__config(const char *var, const char *value, void *data) 3108 { 3109 struct annotation_options *opt = data; 3110 3111 if (!strstarts(var, "annotate.")) 3112 return 0; 3113 3114 if (!strcmp(var, "annotate.offset_level")) { 3115 perf_config_u8(&opt->offset_level, "offset_level", value); 3116 3117 if (opt->offset_level > ANNOTATION__MAX_OFFSET_LEVEL) 3118 opt->offset_level = ANNOTATION__MAX_OFFSET_LEVEL; 3119 else if (opt->offset_level < ANNOTATION__MIN_OFFSET_LEVEL) 3120 opt->offset_level = ANNOTATION__MIN_OFFSET_LEVEL; 3121 } else if (!strcmp(var, "annotate.hide_src_code")) { 3122 opt->hide_src_code = perf_config_bool("hide_src_code", value); 3123 } else if (!strcmp(var, "annotate.jump_arrows")) { 3124 opt->jump_arrows = perf_config_bool("jump_arrows", value); 3125 } else if (!strcmp(var, "annotate.show_linenr")) { 3126 opt->show_linenr = perf_config_bool("show_linenr", value); 3127 } else if (!strcmp(var, "annotate.show_nr_jumps")) { 3128 opt->show_nr_jumps = perf_config_bool("show_nr_jumps", value); 3129 } else if (!strcmp(var, "annotate.show_nr_samples")) { 3130 symbol_conf.show_nr_samples = perf_config_bool("show_nr_samples", 3131 value); 3132 } else if (!strcmp(var, "annotate.show_total_period")) { 3133 symbol_conf.show_total_period = perf_config_bool("show_total_period", 3134 value); 3135 } else if (!strcmp(var, "annotate.use_offset")) { 3136 opt->use_offset = perf_config_bool("use_offset", value); 3137 } else if (!strcmp(var, "annotate.disassembler_style")) { 3138 opt->disassembler_style = value; 3139 } else { 3140 pr_debug("%s variable unknown, ignoring...", var); 3141 } 3142 3143 return 0; 3144 } 3145 3146 void annotation_config__init(struct annotation_options *opt) 3147 { 3148 perf_config(annotation__config, opt); 3149 } 3150 3151 static unsigned int parse_percent_type(char *str1, char *str2) 3152 { 3153 unsigned int type = (unsigned int) -1; 3154 3155 if (!strcmp("period", str1)) { 3156 if (!strcmp("local", str2)) 3157 type = PERCENT_PERIOD_LOCAL; 3158 else if (!strcmp("global", str2)) 3159 type = PERCENT_PERIOD_GLOBAL; 3160 } 3161 3162 if (!strcmp("hits", str1)) { 3163 if (!strcmp("local", str2)) 3164 type = PERCENT_HITS_LOCAL; 3165 else if (!strcmp("global", str2)) 3166 type = PERCENT_HITS_GLOBAL; 3167 } 3168 3169 return type; 3170 } 3171 3172 int annotate_parse_percent_type(const struct option *opt, const char *_str, 3173 int unset __maybe_unused) 3174 { 3175 struct annotation_options *opts = opt->value; 3176 unsigned int type; 3177 char *str1, *str2; 3178 int err = -1; 3179 3180 str1 = strdup(_str); 3181 if (!str1) 3182 return -ENOMEM; 3183 3184 str2 = strchr(str1, '-'); 3185 if (!str2) 3186 goto out; 3187 3188 *str2++ = 0; 3189 3190 type = parse_percent_type(str1, str2); 3191 if (type == (unsigned int) -1) 3192 type = parse_percent_type(str2, str1); 3193 if (type != (unsigned int) -1) { 3194 opts->percent_type = type; 3195 err = 0; 3196 } 3197 3198 out: 3199 free(str1); 3200 return err; 3201 } 3202 3203 int annotate_check_args(struct annotation_options *args) 3204 { 3205 if (args->prefix_strip && !args->prefix) { 3206 pr_err("--prefix-strip requires --prefix\n"); 3207 return -1; 3208 } 3209 return 0; 3210 } 3211