1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> 4 * 5 * Parts came from builtin-annotate.c, see those files for further 6 * copyright notes. 7 */ 8 9 #include <errno.h> 10 #include <inttypes.h> 11 #include <libgen.h> 12 #include <stdlib.h> 13 #include <bpf/bpf.h> 14 #include <bpf/btf.h> 15 #include <bpf/libbpf.h> 16 #include <linux/btf.h> 17 #include "util.h" // hex_width() 18 #include "ui/ui.h" 19 #include "sort.h" 20 #include "build-id.h" 21 #include "color.h" 22 #include "config.h" 23 #include "dso.h" 24 #include "env.h" 25 #include "map.h" 26 #include "map_groups.h" 27 #include "symbol.h" 28 #include "srcline.h" 29 #include "units.h" 30 #include "debug.h" 31 #include "annotate.h" 32 #include "evsel.h" 33 #include "evlist.h" 34 #include "bpf-event.h" 35 #include "block-range.h" 36 #include "string2.h" 37 #include "util/event.h" 38 #include "arch/common.h" 39 #include <regex.h> 40 #include <pthread.h> 41 #include <linux/bitops.h> 42 #include <linux/kernel.h> 43 #include <linux/string.h> 44 #include <bpf/libbpf.h> 45 #include <subcmd/parse-options.h> 46 47 /* FIXME: For the HE_COLORSET */ 48 #include "ui/browser.h" 49 50 /* 51 * FIXME: Using the same values as slang.h, 52 * but that header may not be available everywhere 53 */ 54 #define LARROW_CHAR ((unsigned char)',') 55 #define RARROW_CHAR ((unsigned char)'+') 56 #define DARROW_CHAR ((unsigned char)'.') 57 #define UARROW_CHAR ((unsigned char)'-') 58 59 #include <linux/ctype.h> 60 61 struct annotation_options annotation__default_options = { 62 .use_offset = true, 63 .jump_arrows = true, 64 .annotate_src = true, 65 .offset_level = ANNOTATION__OFFSET_JUMP_TARGETS, 66 .percent_type = PERCENT_PERIOD_LOCAL, 67 }; 68 69 static regex_t file_lineno; 70 71 static struct ins_ops *ins__find(struct arch *arch, const char *name); 72 static void ins__sort(struct arch *arch); 73 static int disasm_line__parse(char *line, const char **namep, char **rawp); 74 75 struct arch { 76 const char *name; 77 struct ins *instructions; 78 size_t nr_instructions; 79 size_t nr_instructions_allocated; 80 struct ins_ops *(*associate_instruction_ops)(struct arch *arch, const char *name); 81 bool sorted_instructions; 82 bool initialized; 83 void *priv; 84 unsigned int model; 85 unsigned int family; 86 int (*init)(struct arch *arch, char *cpuid); 87 bool (*ins_is_fused)(struct arch *arch, const char *ins1, 88 const char *ins2); 89 struct { 90 char comment_char; 91 char skip_functions_char; 92 } objdump; 93 }; 94 95 static struct ins_ops call_ops; 96 static struct ins_ops dec_ops; 97 static struct ins_ops jump_ops; 98 static struct ins_ops mov_ops; 99 static struct ins_ops nop_ops; 100 static struct ins_ops lock_ops; 101 static struct ins_ops ret_ops; 102 103 static int arch__grow_instructions(struct arch *arch) 104 { 105 struct ins *new_instructions; 106 size_t new_nr_allocated; 107 108 if (arch->nr_instructions_allocated == 0 && arch->instructions) 109 goto grow_from_non_allocated_table; 110 111 new_nr_allocated = arch->nr_instructions_allocated + 128; 112 new_instructions = realloc(arch->instructions, new_nr_allocated * sizeof(struct ins)); 113 if (new_instructions == NULL) 114 return -1; 115 116 out_update_instructions: 117 arch->instructions = new_instructions; 118 arch->nr_instructions_allocated = new_nr_allocated; 119 return 0; 120 121 grow_from_non_allocated_table: 122 new_nr_allocated = arch->nr_instructions + 128; 123 new_instructions = calloc(new_nr_allocated, sizeof(struct ins)); 124 if (new_instructions == NULL) 125 return -1; 126 127 memcpy(new_instructions, arch->instructions, arch->nr_instructions); 128 goto out_update_instructions; 129 } 130 131 static int arch__associate_ins_ops(struct arch* arch, const char *name, struct ins_ops *ops) 132 { 133 struct ins *ins; 134 135 if (arch->nr_instructions == arch->nr_instructions_allocated && 136 arch__grow_instructions(arch)) 137 return -1; 138 139 ins = &arch->instructions[arch->nr_instructions]; 140 ins->name = strdup(name); 141 if (!ins->name) 142 return -1; 143 144 ins->ops = ops; 145 arch->nr_instructions++; 146 147 ins__sort(arch); 148 return 0; 149 } 150 151 #include "arch/arc/annotate/instructions.c" 152 #include "arch/arm/annotate/instructions.c" 153 #include "arch/arm64/annotate/instructions.c" 154 #include "arch/csky/annotate/instructions.c" 155 #include "arch/x86/annotate/instructions.c" 156 #include "arch/powerpc/annotate/instructions.c" 157 #include "arch/s390/annotate/instructions.c" 158 #include "arch/sparc/annotate/instructions.c" 159 160 static struct arch architectures[] = { 161 { 162 .name = "arc", 163 .init = arc__annotate_init, 164 }, 165 { 166 .name = "arm", 167 .init = arm__annotate_init, 168 }, 169 { 170 .name = "arm64", 171 .init = arm64__annotate_init, 172 }, 173 { 174 .name = "csky", 175 .init = csky__annotate_init, 176 }, 177 { 178 .name = "x86", 179 .init = x86__annotate_init, 180 .instructions = x86__instructions, 181 .nr_instructions = ARRAY_SIZE(x86__instructions), 182 .ins_is_fused = x86__ins_is_fused, 183 .objdump = { 184 .comment_char = '#', 185 }, 186 }, 187 { 188 .name = "powerpc", 189 .init = powerpc__annotate_init, 190 }, 191 { 192 .name = "s390", 193 .init = s390__annotate_init, 194 .objdump = { 195 .comment_char = '#', 196 }, 197 }, 198 { 199 .name = "sparc", 200 .init = sparc__annotate_init, 201 .objdump = { 202 .comment_char = '#', 203 }, 204 }, 205 }; 206 207 static void ins__delete(struct ins_operands *ops) 208 { 209 if (ops == NULL) 210 return; 211 zfree(&ops->source.raw); 212 zfree(&ops->source.name); 213 zfree(&ops->target.raw); 214 zfree(&ops->target.name); 215 } 216 217 static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size, 218 struct ins_operands *ops, int max_ins_name) 219 { 220 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->raw); 221 } 222 223 int ins__scnprintf(struct ins *ins, char *bf, size_t size, 224 struct ins_operands *ops, int max_ins_name) 225 { 226 if (ins->ops->scnprintf) 227 return ins->ops->scnprintf(ins, bf, size, ops, max_ins_name); 228 229 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name); 230 } 231 232 bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2) 233 { 234 if (!arch || !arch->ins_is_fused) 235 return false; 236 237 return arch->ins_is_fused(arch, ins1, ins2); 238 } 239 240 static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms) 241 { 242 char *endptr, *tok, *name; 243 struct map *map = ms->map; 244 struct addr_map_symbol target = { 245 .map = map, 246 }; 247 248 ops->target.addr = strtoull(ops->raw, &endptr, 16); 249 250 name = strchr(endptr, '<'); 251 if (name == NULL) 252 goto indirect_call; 253 254 name++; 255 256 if (arch->objdump.skip_functions_char && 257 strchr(name, arch->objdump.skip_functions_char)) 258 return -1; 259 260 tok = strchr(name, '>'); 261 if (tok == NULL) 262 return -1; 263 264 *tok = '\0'; 265 ops->target.name = strdup(name); 266 *tok = '>'; 267 268 if (ops->target.name == NULL) 269 return -1; 270 find_target: 271 target.addr = map__objdump_2mem(map, ops->target.addr); 272 273 if (map_groups__find_ams(&target) == 0 && 274 map__rip_2objdump(target.map, map->map_ip(target.map, target.addr)) == ops->target.addr) 275 ops->target.sym = target.sym; 276 277 return 0; 278 279 indirect_call: 280 tok = strchr(endptr, '*'); 281 if (tok != NULL) { 282 endptr++; 283 284 /* Indirect call can use a non-rip register and offset: callq *0x8(%rbx). 285 * Do not parse such instruction. */ 286 if (strstr(endptr, "(%r") == NULL) 287 ops->target.addr = strtoull(endptr, NULL, 16); 288 } 289 goto find_target; 290 } 291 292 static int call__scnprintf(struct ins *ins, char *bf, size_t size, 293 struct ins_operands *ops, int max_ins_name) 294 { 295 if (ops->target.sym) 296 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name); 297 298 if (ops->target.addr == 0) 299 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name); 300 301 if (ops->target.name) 302 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.name); 303 304 return scnprintf(bf, size, "%-*s *%" PRIx64, max_ins_name, ins->name, ops->target.addr); 305 } 306 307 static struct ins_ops call_ops = { 308 .parse = call__parse, 309 .scnprintf = call__scnprintf, 310 }; 311 312 bool ins__is_call(const struct ins *ins) 313 { 314 return ins->ops == &call_ops || ins->ops == &s390_call_ops; 315 } 316 317 /* 318 * Prevents from matching commas in the comment section, e.g.: 319 * ffff200008446e70: b.cs ffff2000084470f4 <generic_exec_single+0x314> // b.hs, b.nlast 320 */ 321 static inline const char *validate_comma(const char *c, struct ins_operands *ops) 322 { 323 if (ops->raw_comment && c > ops->raw_comment) 324 return NULL; 325 326 return c; 327 } 328 329 static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms) 330 { 331 struct map *map = ms->map; 332 struct symbol *sym = ms->sym; 333 struct addr_map_symbol target = { 334 .map = map, 335 }; 336 const char *c = strchr(ops->raw, ','); 337 u64 start, end; 338 339 ops->raw_comment = strchr(ops->raw, arch->objdump.comment_char); 340 c = validate_comma(c, ops); 341 342 /* 343 * Examples of lines to parse for the _cpp_lex_token@@Base 344 * function: 345 * 346 * 1159e6c: jne 115aa32 <_cpp_lex_token@@Base+0xf92> 347 * 1159e8b: jne c469be <cpp_named_operator2name@@Base+0xa72> 348 * 349 * The first is a jump to an offset inside the same function, 350 * the second is to another function, i.e. that 0xa72 is an 351 * offset in the cpp_named_operator2name@@base function. 352 */ 353 /* 354 * skip over possible up to 2 operands to get to address, e.g.: 355 * tbnz w0, #26, ffff0000083cd190 <security_file_permission+0xd0> 356 */ 357 if (c++ != NULL) { 358 ops->target.addr = strtoull(c, NULL, 16); 359 if (!ops->target.addr) { 360 c = strchr(c, ','); 361 c = validate_comma(c, ops); 362 if (c++ != NULL) 363 ops->target.addr = strtoull(c, NULL, 16); 364 } 365 } else { 366 ops->target.addr = strtoull(ops->raw, NULL, 16); 367 } 368 369 target.addr = map__objdump_2mem(map, ops->target.addr); 370 start = map->unmap_ip(map, sym->start), 371 end = map->unmap_ip(map, sym->end); 372 373 ops->target.outside = target.addr < start || target.addr > end; 374 375 /* 376 * FIXME: things like this in _cpp_lex_token (gcc's cc1 program): 377 378 cpp_named_operator2name@@Base+0xa72 379 380 * Point to a place that is after the cpp_named_operator2name 381 * boundaries, i.e. in the ELF symbol table for cc1 382 * cpp_named_operator2name is marked as being 32-bytes long, but it in 383 * fact is much larger than that, so we seem to need a symbols__find() 384 * routine that looks for >= current->start and < next_symbol->start, 385 * possibly just for C++ objects? 386 * 387 * For now lets just make some progress by marking jumps to outside the 388 * current function as call like. 389 * 390 * Actual navigation will come next, with further understanding of how 391 * the symbol searching and disassembly should be done. 392 */ 393 if (map_groups__find_ams(&target) == 0 && 394 map__rip_2objdump(target.map, map->map_ip(target.map, target.addr)) == ops->target.addr) 395 ops->target.sym = target.sym; 396 397 if (!ops->target.outside) { 398 ops->target.offset = target.addr - start; 399 ops->target.offset_avail = true; 400 } else { 401 ops->target.offset_avail = false; 402 } 403 404 return 0; 405 } 406 407 static int jump__scnprintf(struct ins *ins, char *bf, size_t size, 408 struct ins_operands *ops, int max_ins_name) 409 { 410 const char *c; 411 412 if (!ops->target.addr || ops->target.offset < 0) 413 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name); 414 415 if (ops->target.outside && ops->target.sym != NULL) 416 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name); 417 418 c = strchr(ops->raw, ','); 419 c = validate_comma(c, ops); 420 421 if (c != NULL) { 422 const char *c2 = strchr(c + 1, ','); 423 424 c2 = validate_comma(c2, ops); 425 /* check for 3-op insn */ 426 if (c2 != NULL) 427 c = c2; 428 c++; 429 430 /* mirror arch objdump's space-after-comma style */ 431 if (*c == ' ') 432 c++; 433 } 434 435 return scnprintf(bf, size, "%-*s %.*s%" PRIx64, max_ins_name, 436 ins->name, c ? c - ops->raw : 0, ops->raw, 437 ops->target.offset); 438 } 439 440 static struct ins_ops jump_ops = { 441 .parse = jump__parse, 442 .scnprintf = jump__scnprintf, 443 }; 444 445 bool ins__is_jump(const struct ins *ins) 446 { 447 return ins->ops == &jump_ops; 448 } 449 450 static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep) 451 { 452 char *endptr, *name, *t; 453 454 if (strstr(raw, "(%rip)") == NULL) 455 return 0; 456 457 *addrp = strtoull(comment, &endptr, 16); 458 if (endptr == comment) 459 return 0; 460 name = strchr(endptr, '<'); 461 if (name == NULL) 462 return -1; 463 464 name++; 465 466 t = strchr(name, '>'); 467 if (t == NULL) 468 return 0; 469 470 *t = '\0'; 471 *namep = strdup(name); 472 *t = '>'; 473 474 return 0; 475 } 476 477 static int lock__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms) 478 { 479 ops->locked.ops = zalloc(sizeof(*ops->locked.ops)); 480 if (ops->locked.ops == NULL) 481 return 0; 482 483 if (disasm_line__parse(ops->raw, &ops->locked.ins.name, &ops->locked.ops->raw) < 0) 484 goto out_free_ops; 485 486 ops->locked.ins.ops = ins__find(arch, ops->locked.ins.name); 487 488 if (ops->locked.ins.ops == NULL) 489 goto out_free_ops; 490 491 if (ops->locked.ins.ops->parse && 492 ops->locked.ins.ops->parse(arch, ops->locked.ops, ms) < 0) 493 goto out_free_ops; 494 495 return 0; 496 497 out_free_ops: 498 zfree(&ops->locked.ops); 499 return 0; 500 } 501 502 static int lock__scnprintf(struct ins *ins, char *bf, size_t size, 503 struct ins_operands *ops, int max_ins_name) 504 { 505 int printed; 506 507 if (ops->locked.ins.ops == NULL) 508 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name); 509 510 printed = scnprintf(bf, size, "%-*s ", max_ins_name, ins->name); 511 return printed + ins__scnprintf(&ops->locked.ins, bf + printed, 512 size - printed, ops->locked.ops, max_ins_name); 513 } 514 515 static void lock__delete(struct ins_operands *ops) 516 { 517 struct ins *ins = &ops->locked.ins; 518 519 if (ins->ops && ins->ops->free) 520 ins->ops->free(ops->locked.ops); 521 else 522 ins__delete(ops->locked.ops); 523 524 zfree(&ops->locked.ops); 525 zfree(&ops->target.raw); 526 zfree(&ops->target.name); 527 } 528 529 static struct ins_ops lock_ops = { 530 .free = lock__delete, 531 .parse = lock__parse, 532 .scnprintf = lock__scnprintf, 533 }; 534 535 static int mov__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms __maybe_unused) 536 { 537 char *s = strchr(ops->raw, ','), *target, *comment, prev; 538 539 if (s == NULL) 540 return -1; 541 542 *s = '\0'; 543 ops->source.raw = strdup(ops->raw); 544 *s = ','; 545 546 if (ops->source.raw == NULL) 547 return -1; 548 549 target = ++s; 550 comment = strchr(s, arch->objdump.comment_char); 551 552 if (comment != NULL) 553 s = comment - 1; 554 else 555 s = strchr(s, '\0') - 1; 556 557 while (s > target && isspace(s[0])) 558 --s; 559 s++; 560 prev = *s; 561 *s = '\0'; 562 563 ops->target.raw = strdup(target); 564 *s = prev; 565 566 if (ops->target.raw == NULL) 567 goto out_free_source; 568 569 if (comment == NULL) 570 return 0; 571 572 comment = skip_spaces(comment); 573 comment__symbol(ops->source.raw, comment + 1, &ops->source.addr, &ops->source.name); 574 comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name); 575 576 return 0; 577 578 out_free_source: 579 zfree(&ops->source.raw); 580 return -1; 581 } 582 583 static int mov__scnprintf(struct ins *ins, char *bf, size_t size, 584 struct ins_operands *ops, int max_ins_name) 585 { 586 return scnprintf(bf, size, "%-*s %s,%s", max_ins_name, ins->name, 587 ops->source.name ?: ops->source.raw, 588 ops->target.name ?: ops->target.raw); 589 } 590 591 static struct ins_ops mov_ops = { 592 .parse = mov__parse, 593 .scnprintf = mov__scnprintf, 594 }; 595 596 static int dec__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map_symbol *ms __maybe_unused) 597 { 598 char *target, *comment, *s, prev; 599 600 target = s = ops->raw; 601 602 while (s[0] != '\0' && !isspace(s[0])) 603 ++s; 604 prev = *s; 605 *s = '\0'; 606 607 ops->target.raw = strdup(target); 608 *s = prev; 609 610 if (ops->target.raw == NULL) 611 return -1; 612 613 comment = strchr(s, arch->objdump.comment_char); 614 if (comment == NULL) 615 return 0; 616 617 comment = skip_spaces(comment); 618 comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name); 619 620 return 0; 621 } 622 623 static int dec__scnprintf(struct ins *ins, char *bf, size_t size, 624 struct ins_operands *ops, int max_ins_name) 625 { 626 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, 627 ops->target.name ?: ops->target.raw); 628 } 629 630 static struct ins_ops dec_ops = { 631 .parse = dec__parse, 632 .scnprintf = dec__scnprintf, 633 }; 634 635 static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size, 636 struct ins_operands *ops __maybe_unused, int max_ins_name) 637 { 638 return scnprintf(bf, size, "%-*s", max_ins_name, "nop"); 639 } 640 641 static struct ins_ops nop_ops = { 642 .scnprintf = nop__scnprintf, 643 }; 644 645 static struct ins_ops ret_ops = { 646 .scnprintf = ins__raw_scnprintf, 647 }; 648 649 bool ins__is_ret(const struct ins *ins) 650 { 651 return ins->ops == &ret_ops; 652 } 653 654 bool ins__is_lock(const struct ins *ins) 655 { 656 return ins->ops == &lock_ops; 657 } 658 659 static int ins__key_cmp(const void *name, const void *insp) 660 { 661 const struct ins *ins = insp; 662 663 return strcmp(name, ins->name); 664 } 665 666 static int ins__cmp(const void *a, const void *b) 667 { 668 const struct ins *ia = a; 669 const struct ins *ib = b; 670 671 return strcmp(ia->name, ib->name); 672 } 673 674 static void ins__sort(struct arch *arch) 675 { 676 const int nmemb = arch->nr_instructions; 677 678 qsort(arch->instructions, nmemb, sizeof(struct ins), ins__cmp); 679 } 680 681 static struct ins_ops *__ins__find(struct arch *arch, const char *name) 682 { 683 struct ins *ins; 684 const int nmemb = arch->nr_instructions; 685 686 if (!arch->sorted_instructions) { 687 ins__sort(arch); 688 arch->sorted_instructions = true; 689 } 690 691 ins = bsearch(name, arch->instructions, nmemb, sizeof(struct ins), ins__key_cmp); 692 return ins ? ins->ops : NULL; 693 } 694 695 static struct ins_ops *ins__find(struct arch *arch, const char *name) 696 { 697 struct ins_ops *ops = __ins__find(arch, name); 698 699 if (!ops && arch->associate_instruction_ops) 700 ops = arch->associate_instruction_ops(arch, name); 701 702 return ops; 703 } 704 705 static int arch__key_cmp(const void *name, const void *archp) 706 { 707 const struct arch *arch = archp; 708 709 return strcmp(name, arch->name); 710 } 711 712 static int arch__cmp(const void *a, const void *b) 713 { 714 const struct arch *aa = a; 715 const struct arch *ab = b; 716 717 return strcmp(aa->name, ab->name); 718 } 719 720 static void arch__sort(void) 721 { 722 const int nmemb = ARRAY_SIZE(architectures); 723 724 qsort(architectures, nmemb, sizeof(struct arch), arch__cmp); 725 } 726 727 static struct arch *arch__find(const char *name) 728 { 729 const int nmemb = ARRAY_SIZE(architectures); 730 static bool sorted; 731 732 if (!sorted) { 733 arch__sort(); 734 sorted = true; 735 } 736 737 return bsearch(name, architectures, nmemb, sizeof(struct arch), arch__key_cmp); 738 } 739 740 static struct annotated_source *annotated_source__new(void) 741 { 742 struct annotated_source *src = zalloc(sizeof(*src)); 743 744 if (src != NULL) 745 INIT_LIST_HEAD(&src->source); 746 747 return src; 748 } 749 750 static __maybe_unused void annotated_source__delete(struct annotated_source *src) 751 { 752 if (src == NULL) 753 return; 754 zfree(&src->histograms); 755 zfree(&src->cycles_hist); 756 free(src); 757 } 758 759 static int annotated_source__alloc_histograms(struct annotated_source *src, 760 size_t size, int nr_hists) 761 { 762 size_t sizeof_sym_hist; 763 764 /* 765 * Add buffer of one element for zero length symbol. 766 * When sample is taken from first instruction of 767 * zero length symbol, perf still resolves it and 768 * shows symbol name in perf report and allows to 769 * annotate it. 770 */ 771 if (size == 0) 772 size = 1; 773 774 /* Check for overflow when calculating sizeof_sym_hist */ 775 if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(struct sym_hist_entry)) 776 return -1; 777 778 sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(struct sym_hist_entry)); 779 780 /* Check for overflow in zalloc argument */ 781 if (sizeof_sym_hist > SIZE_MAX / nr_hists) 782 return -1; 783 784 src->sizeof_sym_hist = sizeof_sym_hist; 785 src->nr_histograms = nr_hists; 786 src->histograms = calloc(nr_hists, sizeof_sym_hist) ; 787 return src->histograms ? 0 : -1; 788 } 789 790 /* The cycles histogram is lazily allocated. */ 791 static int symbol__alloc_hist_cycles(struct symbol *sym) 792 { 793 struct annotation *notes = symbol__annotation(sym); 794 const size_t size = symbol__size(sym); 795 796 notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist)); 797 if (notes->src->cycles_hist == NULL) 798 return -1; 799 return 0; 800 } 801 802 void symbol__annotate_zero_histograms(struct symbol *sym) 803 { 804 struct annotation *notes = symbol__annotation(sym); 805 806 pthread_mutex_lock(¬es->lock); 807 if (notes->src != NULL) { 808 memset(notes->src->histograms, 0, 809 notes->src->nr_histograms * notes->src->sizeof_sym_hist); 810 if (notes->src->cycles_hist) 811 memset(notes->src->cycles_hist, 0, 812 symbol__size(sym) * sizeof(struct cyc_hist)); 813 } 814 pthread_mutex_unlock(¬es->lock); 815 } 816 817 static int __symbol__account_cycles(struct cyc_hist *ch, 818 u64 start, 819 unsigned offset, unsigned cycles, 820 unsigned have_start) 821 { 822 /* 823 * For now we can only account one basic block per 824 * final jump. But multiple could be overlapping. 825 * Always account the longest one. So when 826 * a shorter one has been already seen throw it away. 827 * 828 * We separately always account the full cycles. 829 */ 830 ch[offset].num_aggr++; 831 ch[offset].cycles_aggr += cycles; 832 833 if (cycles > ch[offset].cycles_max) 834 ch[offset].cycles_max = cycles; 835 836 if (ch[offset].cycles_min) { 837 if (cycles && cycles < ch[offset].cycles_min) 838 ch[offset].cycles_min = cycles; 839 } else 840 ch[offset].cycles_min = cycles; 841 842 if (!have_start && ch[offset].have_start) 843 return 0; 844 if (ch[offset].num) { 845 if (have_start && (!ch[offset].have_start || 846 ch[offset].start > start)) { 847 ch[offset].have_start = 0; 848 ch[offset].cycles = 0; 849 ch[offset].num = 0; 850 if (ch[offset].reset < 0xffff) 851 ch[offset].reset++; 852 } else if (have_start && 853 ch[offset].start < start) 854 return 0; 855 } 856 ch[offset].have_start = have_start; 857 ch[offset].start = start; 858 ch[offset].cycles += cycles; 859 ch[offset].num++; 860 return 0; 861 } 862 863 static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map, 864 struct annotated_source *src, int evidx, u64 addr, 865 struct perf_sample *sample) 866 { 867 unsigned offset; 868 struct sym_hist *h; 869 870 pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr)); 871 872 if ((addr < sym->start || addr >= sym->end) && 873 (addr != sym->end || sym->start != sym->end)) { 874 pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n", 875 __func__, __LINE__, sym->name, sym->start, addr, sym->end); 876 return -ERANGE; 877 } 878 879 offset = addr - sym->start; 880 h = annotated_source__histogram(src, evidx); 881 if (h == NULL) { 882 pr_debug("%s(%d): ENOMEM! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 ", func: %d\n", 883 __func__, __LINE__, sym->name, sym->start, addr, sym->end, sym->type == STT_FUNC); 884 return -ENOMEM; 885 } 886 h->nr_samples++; 887 h->addr[offset].nr_samples++; 888 h->period += sample->period; 889 h->addr[offset].period += sample->period; 890 891 pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64 892 ", evidx=%d] => nr_samples: %" PRIu64 ", period: %" PRIu64 "\n", 893 sym->start, sym->name, addr, addr - sym->start, evidx, 894 h->addr[offset].nr_samples, h->addr[offset].period); 895 return 0; 896 } 897 898 static struct cyc_hist *symbol__cycles_hist(struct symbol *sym) 899 { 900 struct annotation *notes = symbol__annotation(sym); 901 902 if (notes->src == NULL) { 903 notes->src = annotated_source__new(); 904 if (notes->src == NULL) 905 return NULL; 906 goto alloc_cycles_hist; 907 } 908 909 if (!notes->src->cycles_hist) { 910 alloc_cycles_hist: 911 symbol__alloc_hist_cycles(sym); 912 } 913 914 return notes->src->cycles_hist; 915 } 916 917 struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists) 918 { 919 struct annotation *notes = symbol__annotation(sym); 920 921 if (notes->src == NULL) { 922 notes->src = annotated_source__new(); 923 if (notes->src == NULL) 924 return NULL; 925 goto alloc_histograms; 926 } 927 928 if (notes->src->histograms == NULL) { 929 alloc_histograms: 930 annotated_source__alloc_histograms(notes->src, symbol__size(sym), 931 nr_hists); 932 } 933 934 return notes->src; 935 } 936 937 static int symbol__inc_addr_samples(struct symbol *sym, struct map *map, 938 struct evsel *evsel, u64 addr, 939 struct perf_sample *sample) 940 { 941 struct annotated_source *src; 942 943 if (sym == NULL) 944 return 0; 945 src = symbol__hists(sym, evsel->evlist->core.nr_entries); 946 return (src) ? __symbol__inc_addr_samples(sym, map, src, evsel->idx, 947 addr, sample) : 0; 948 } 949 950 static int symbol__account_cycles(u64 addr, u64 start, 951 struct symbol *sym, unsigned cycles) 952 { 953 struct cyc_hist *cycles_hist; 954 unsigned offset; 955 956 if (sym == NULL) 957 return 0; 958 cycles_hist = symbol__cycles_hist(sym); 959 if (cycles_hist == NULL) 960 return -ENOMEM; 961 if (addr < sym->start || addr >= sym->end) 962 return -ERANGE; 963 964 if (start) { 965 if (start < sym->start || start >= sym->end) 966 return -ERANGE; 967 if (start >= addr) 968 start = 0; 969 } 970 offset = addr - sym->start; 971 return __symbol__account_cycles(cycles_hist, 972 start ? start - sym->start : 0, 973 offset, cycles, 974 !!start); 975 } 976 977 int addr_map_symbol__account_cycles(struct addr_map_symbol *ams, 978 struct addr_map_symbol *start, 979 unsigned cycles) 980 { 981 u64 saddr = 0; 982 int err; 983 984 if (!cycles) 985 return 0; 986 987 /* 988 * Only set start when IPC can be computed. We can only 989 * compute it when the basic block is completely in a single 990 * function. 991 * Special case the case when the jump is elsewhere, but 992 * it starts on the function start. 993 */ 994 if (start && 995 (start->sym == ams->sym || 996 (ams->sym && 997 start->addr == ams->sym->start + ams->map->start))) 998 saddr = start->al_addr; 999 if (saddr == 0) 1000 pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n", 1001 ams->addr, 1002 start ? start->addr : 0, 1003 ams->sym ? ams->sym->start + ams->map->start : 0, 1004 saddr); 1005 err = symbol__account_cycles(ams->al_addr, saddr, ams->sym, cycles); 1006 if (err) 1007 pr_debug2("account_cycles failed %d\n", err); 1008 return err; 1009 } 1010 1011 static unsigned annotation__count_insn(struct annotation *notes, u64 start, u64 end) 1012 { 1013 unsigned n_insn = 0; 1014 u64 offset; 1015 1016 for (offset = start; offset <= end; offset++) { 1017 if (notes->offsets[offset]) 1018 n_insn++; 1019 } 1020 return n_insn; 1021 } 1022 1023 static void annotation__count_and_fill(struct annotation *notes, u64 start, u64 end, struct cyc_hist *ch) 1024 { 1025 unsigned n_insn; 1026 unsigned int cover_insn = 0; 1027 u64 offset; 1028 1029 n_insn = annotation__count_insn(notes, start, end); 1030 if (n_insn && ch->num && ch->cycles) { 1031 float ipc = n_insn / ((double)ch->cycles / (double)ch->num); 1032 1033 /* Hide data when there are too many overlaps. */ 1034 if (ch->reset >= 0x7fff) 1035 return; 1036 1037 for (offset = start; offset <= end; offset++) { 1038 struct annotation_line *al = notes->offsets[offset]; 1039 1040 if (al && al->ipc == 0.0) { 1041 al->ipc = ipc; 1042 cover_insn++; 1043 } 1044 } 1045 1046 if (cover_insn) { 1047 notes->hit_cycles += ch->cycles; 1048 notes->hit_insn += n_insn * ch->num; 1049 notes->cover_insn += cover_insn; 1050 } 1051 } 1052 } 1053 1054 void annotation__compute_ipc(struct annotation *notes, size_t size) 1055 { 1056 s64 offset; 1057 1058 if (!notes->src || !notes->src->cycles_hist) 1059 return; 1060 1061 notes->total_insn = annotation__count_insn(notes, 0, size - 1); 1062 notes->hit_cycles = 0; 1063 notes->hit_insn = 0; 1064 notes->cover_insn = 0; 1065 1066 pthread_mutex_lock(¬es->lock); 1067 for (offset = size - 1; offset >= 0; --offset) { 1068 struct cyc_hist *ch; 1069 1070 ch = ¬es->src->cycles_hist[offset]; 1071 if (ch && ch->cycles) { 1072 struct annotation_line *al; 1073 1074 if (ch->have_start) 1075 annotation__count_and_fill(notes, ch->start, offset, ch); 1076 al = notes->offsets[offset]; 1077 if (al && ch->num_aggr) { 1078 al->cycles = ch->cycles_aggr / ch->num_aggr; 1079 al->cycles_max = ch->cycles_max; 1080 al->cycles_min = ch->cycles_min; 1081 } 1082 notes->have_cycles = true; 1083 } 1084 } 1085 pthread_mutex_unlock(¬es->lock); 1086 } 1087 1088 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample, 1089 struct evsel *evsel) 1090 { 1091 return symbol__inc_addr_samples(ams->sym, ams->map, evsel, ams->al_addr, sample); 1092 } 1093 1094 int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample, 1095 struct evsel *evsel, u64 ip) 1096 { 1097 return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evsel, ip, sample); 1098 } 1099 1100 static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, struct map_symbol *ms) 1101 { 1102 dl->ins.ops = ins__find(arch, dl->ins.name); 1103 1104 if (!dl->ins.ops) 1105 return; 1106 1107 if (dl->ins.ops->parse && dl->ins.ops->parse(arch, &dl->ops, ms) < 0) 1108 dl->ins.ops = NULL; 1109 } 1110 1111 static int disasm_line__parse(char *line, const char **namep, char **rawp) 1112 { 1113 char tmp, *name = skip_spaces(line); 1114 1115 if (name[0] == '\0') 1116 return -1; 1117 1118 *rawp = name + 1; 1119 1120 while ((*rawp)[0] != '\0' && !isspace((*rawp)[0])) 1121 ++*rawp; 1122 1123 tmp = (*rawp)[0]; 1124 (*rawp)[0] = '\0'; 1125 *namep = strdup(name); 1126 1127 if (*namep == NULL) 1128 goto out; 1129 1130 (*rawp)[0] = tmp; 1131 *rawp = strim(*rawp); 1132 1133 return 0; 1134 1135 out: 1136 return -1; 1137 } 1138 1139 struct annotate_args { 1140 size_t privsize; 1141 struct arch *arch; 1142 struct map_symbol ms; 1143 struct evsel *evsel; 1144 struct annotation_options *options; 1145 s64 offset; 1146 char *line; 1147 int line_nr; 1148 }; 1149 1150 static void annotation_line__delete(struct annotation_line *al) 1151 { 1152 void *ptr = (void *) al - al->privsize; 1153 1154 free_srcline(al->path); 1155 zfree(&al->line); 1156 free(ptr); 1157 } 1158 1159 /* 1160 * Allocating the annotation line data with following 1161 * structure: 1162 * 1163 * -------------------------------------- 1164 * private space | struct annotation_line 1165 * -------------------------------------- 1166 * 1167 * Size of the private space is stored in 'struct annotation_line'. 1168 * 1169 */ 1170 static struct annotation_line * 1171 annotation_line__new(struct annotate_args *args, size_t privsize) 1172 { 1173 struct annotation_line *al; 1174 struct evsel *evsel = args->evsel; 1175 size_t size = privsize + sizeof(*al); 1176 int nr = 1; 1177 1178 if (perf_evsel__is_group_event(evsel)) 1179 nr = evsel->core.nr_members; 1180 1181 size += sizeof(al->data[0]) * nr; 1182 1183 al = zalloc(size); 1184 if (al) { 1185 al = (void *) al + privsize; 1186 al->privsize = privsize; 1187 al->offset = args->offset; 1188 al->line = strdup(args->line); 1189 al->line_nr = args->line_nr; 1190 al->data_nr = nr; 1191 } 1192 1193 return al; 1194 } 1195 1196 /* 1197 * Allocating the disasm annotation line data with 1198 * following structure: 1199 * 1200 * ------------------------------------------------------------ 1201 * privsize space | struct disasm_line | struct annotation_line 1202 * ------------------------------------------------------------ 1203 * 1204 * We have 'struct annotation_line' member as last member 1205 * of 'struct disasm_line' to have an easy access. 1206 * 1207 */ 1208 static struct disasm_line *disasm_line__new(struct annotate_args *args) 1209 { 1210 struct disasm_line *dl = NULL; 1211 struct annotation_line *al; 1212 size_t privsize = args->privsize + offsetof(struct disasm_line, al); 1213 1214 al = annotation_line__new(args, privsize); 1215 if (al != NULL) { 1216 dl = disasm_line(al); 1217 1218 if (dl->al.line == NULL) 1219 goto out_delete; 1220 1221 if (args->offset != -1) { 1222 if (disasm_line__parse(dl->al.line, &dl->ins.name, &dl->ops.raw) < 0) 1223 goto out_free_line; 1224 1225 disasm_line__init_ins(dl, args->arch, &args->ms); 1226 } 1227 } 1228 1229 return dl; 1230 1231 out_free_line: 1232 zfree(&dl->al.line); 1233 out_delete: 1234 free(dl); 1235 return NULL; 1236 } 1237 1238 void disasm_line__free(struct disasm_line *dl) 1239 { 1240 if (dl->ins.ops && dl->ins.ops->free) 1241 dl->ins.ops->free(&dl->ops); 1242 else 1243 ins__delete(&dl->ops); 1244 zfree(&dl->ins.name); 1245 annotation_line__delete(&dl->al); 1246 } 1247 1248 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw, int max_ins_name) 1249 { 1250 if (raw || !dl->ins.ops) 1251 return scnprintf(bf, size, "%-*s %s", max_ins_name, dl->ins.name, dl->ops.raw); 1252 1253 return ins__scnprintf(&dl->ins, bf, size, &dl->ops, max_ins_name); 1254 } 1255 1256 static void annotation_line__add(struct annotation_line *al, struct list_head *head) 1257 { 1258 list_add_tail(&al->node, head); 1259 } 1260 1261 struct annotation_line * 1262 annotation_line__next(struct annotation_line *pos, struct list_head *head) 1263 { 1264 list_for_each_entry_continue(pos, head, node) 1265 if (pos->offset >= 0) 1266 return pos; 1267 1268 return NULL; 1269 } 1270 1271 static const char *annotate__address_color(struct block_range *br) 1272 { 1273 double cov = block_range__coverage(br); 1274 1275 if (cov >= 0) { 1276 /* mark red for >75% coverage */ 1277 if (cov > 0.75) 1278 return PERF_COLOR_RED; 1279 1280 /* mark dull for <1% coverage */ 1281 if (cov < 0.01) 1282 return PERF_COLOR_NORMAL; 1283 } 1284 1285 return PERF_COLOR_MAGENTA; 1286 } 1287 1288 static const char *annotate__asm_color(struct block_range *br) 1289 { 1290 double cov = block_range__coverage(br); 1291 1292 if (cov >= 0) { 1293 /* mark dull for <1% coverage */ 1294 if (cov < 0.01) 1295 return PERF_COLOR_NORMAL; 1296 } 1297 1298 return PERF_COLOR_BLUE; 1299 } 1300 1301 static void annotate__branch_printf(struct block_range *br, u64 addr) 1302 { 1303 bool emit_comment = true; 1304 1305 if (!br) 1306 return; 1307 1308 #if 1 1309 if (br->is_target && br->start == addr) { 1310 struct block_range *branch = br; 1311 double p; 1312 1313 /* 1314 * Find matching branch to our target. 1315 */ 1316 while (!branch->is_branch) 1317 branch = block_range__next(branch); 1318 1319 p = 100 *(double)br->entry / branch->coverage; 1320 1321 if (p > 0.1) { 1322 if (emit_comment) { 1323 emit_comment = false; 1324 printf("\t#"); 1325 } 1326 1327 /* 1328 * The percentage of coverage joined at this target in relation 1329 * to the next branch. 1330 */ 1331 printf(" +%.2f%%", p); 1332 } 1333 } 1334 #endif 1335 if (br->is_branch && br->end == addr) { 1336 double p = 100*(double)br->taken / br->coverage; 1337 1338 if (p > 0.1) { 1339 if (emit_comment) { 1340 emit_comment = false; 1341 printf("\t#"); 1342 } 1343 1344 /* 1345 * The percentage of coverage leaving at this branch, and 1346 * its prediction ratio. 1347 */ 1348 printf(" -%.2f%% (p:%.2f%%)", p, 100*(double)br->pred / br->taken); 1349 } 1350 } 1351 } 1352 1353 static int disasm_line__print(struct disasm_line *dl, u64 start, int addr_fmt_width) 1354 { 1355 s64 offset = dl->al.offset; 1356 const u64 addr = start + offset; 1357 struct block_range *br; 1358 1359 br = block_range__find(addr); 1360 color_fprintf(stdout, annotate__address_color(br), " %*" PRIx64 ":", addr_fmt_width, addr); 1361 color_fprintf(stdout, annotate__asm_color(br), "%s", dl->al.line); 1362 annotate__branch_printf(br, addr); 1363 return 0; 1364 } 1365 1366 static int 1367 annotation_line__print(struct annotation_line *al, struct symbol *sym, u64 start, 1368 struct evsel *evsel, u64 len, int min_pcnt, int printed, 1369 int max_lines, struct annotation_line *queue, int addr_fmt_width, 1370 int percent_type) 1371 { 1372 struct disasm_line *dl = container_of(al, struct disasm_line, al); 1373 static const char *prev_line; 1374 static const char *prev_color; 1375 1376 if (al->offset != -1) { 1377 double max_percent = 0.0; 1378 int i, nr_percent = 1; 1379 const char *color; 1380 struct annotation *notes = symbol__annotation(sym); 1381 1382 for (i = 0; i < al->data_nr; i++) { 1383 double percent; 1384 1385 percent = annotation_data__percent(&al->data[i], 1386 percent_type); 1387 1388 if (percent > max_percent) 1389 max_percent = percent; 1390 } 1391 1392 if (al->data_nr > nr_percent) 1393 nr_percent = al->data_nr; 1394 1395 if (max_percent < min_pcnt) 1396 return -1; 1397 1398 if (max_lines && printed >= max_lines) 1399 return 1; 1400 1401 if (queue != NULL) { 1402 list_for_each_entry_from(queue, ¬es->src->source, node) { 1403 if (queue == al) 1404 break; 1405 annotation_line__print(queue, sym, start, evsel, len, 1406 0, 0, 1, NULL, addr_fmt_width, 1407 percent_type); 1408 } 1409 } 1410 1411 color = get_percent_color(max_percent); 1412 1413 /* 1414 * Also color the filename and line if needed, with 1415 * the same color than the percentage. Don't print it 1416 * twice for close colored addr with the same filename:line 1417 */ 1418 if (al->path) { 1419 if (!prev_line || strcmp(prev_line, al->path) 1420 || color != prev_color) { 1421 color_fprintf(stdout, color, " %s", al->path); 1422 prev_line = al->path; 1423 prev_color = color; 1424 } 1425 } 1426 1427 for (i = 0; i < nr_percent; i++) { 1428 struct annotation_data *data = &al->data[i]; 1429 double percent; 1430 1431 percent = annotation_data__percent(data, percent_type); 1432 color = get_percent_color(percent); 1433 1434 if (symbol_conf.show_total_period) 1435 color_fprintf(stdout, color, " %11" PRIu64, 1436 data->he.period); 1437 else if (symbol_conf.show_nr_samples) 1438 color_fprintf(stdout, color, " %7" PRIu64, 1439 data->he.nr_samples); 1440 else 1441 color_fprintf(stdout, color, " %7.2f", percent); 1442 } 1443 1444 printf(" : "); 1445 1446 disasm_line__print(dl, start, addr_fmt_width); 1447 printf("\n"); 1448 } else if (max_lines && printed >= max_lines) 1449 return 1; 1450 else { 1451 int width = symbol_conf.show_total_period ? 12 : 8; 1452 1453 if (queue) 1454 return -1; 1455 1456 if (perf_evsel__is_group_event(evsel)) 1457 width *= evsel->core.nr_members; 1458 1459 if (!*al->line) 1460 printf(" %*s:\n", width, " "); 1461 else 1462 printf(" %*s: %*s %s\n", width, " ", addr_fmt_width, " ", al->line); 1463 } 1464 1465 return 0; 1466 } 1467 1468 /* 1469 * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw) 1470 * which looks like following 1471 * 1472 * 0000000000415500 <_init>: 1473 * 415500: sub $0x8,%rsp 1474 * 415504: mov 0x2f5ad5(%rip),%rax # 70afe0 <_DYNAMIC+0x2f8> 1475 * 41550b: test %rax,%rax 1476 * 41550e: je 415515 <_init+0x15> 1477 * 415510: callq 416e70 <__gmon_start__@plt> 1478 * 415515: add $0x8,%rsp 1479 * 415519: retq 1480 * 1481 * it will be parsed and saved into struct disasm_line as 1482 * <offset> <name> <ops.raw> 1483 * 1484 * The offset will be a relative offset from the start of the symbol and -1 1485 * means that it's not a disassembly line so should be treated differently. 1486 * The ops.raw part will be parsed further according to type of the instruction. 1487 */ 1488 static int symbol__parse_objdump_line(struct symbol *sym, FILE *file, 1489 struct annotate_args *args, 1490 int *line_nr) 1491 { 1492 struct map *map = args->ms.map; 1493 struct annotation *notes = symbol__annotation(sym); 1494 struct disasm_line *dl; 1495 char *line = NULL, *parsed_line, *tmp, *tmp2; 1496 size_t line_len; 1497 s64 line_ip, offset = -1; 1498 regmatch_t match[2]; 1499 1500 if (getline(&line, &line_len, file) < 0) 1501 return -1; 1502 1503 if (!line) 1504 return -1; 1505 1506 line_ip = -1; 1507 parsed_line = strim(line); 1508 1509 /* /filename:linenr ? Save line number and ignore. */ 1510 if (regexec(&file_lineno, parsed_line, 2, match, 0) == 0) { 1511 *line_nr = atoi(parsed_line + match[1].rm_so); 1512 return 0; 1513 } 1514 1515 tmp = skip_spaces(parsed_line); 1516 if (*tmp) { 1517 /* 1518 * Parse hexa addresses followed by ':' 1519 */ 1520 line_ip = strtoull(tmp, &tmp2, 16); 1521 if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0') 1522 line_ip = -1; 1523 } 1524 1525 if (line_ip != -1) { 1526 u64 start = map__rip_2objdump(map, sym->start), 1527 end = map__rip_2objdump(map, sym->end); 1528 1529 offset = line_ip - start; 1530 if ((u64)line_ip < start || (u64)line_ip >= end) 1531 offset = -1; 1532 else 1533 parsed_line = tmp2 + 1; 1534 } 1535 1536 args->offset = offset; 1537 args->line = parsed_line; 1538 args->line_nr = *line_nr; 1539 args->ms.sym = sym; 1540 1541 dl = disasm_line__new(args); 1542 free(line); 1543 (*line_nr)++; 1544 1545 if (dl == NULL) 1546 return -1; 1547 1548 if (!disasm_line__has_local_offset(dl)) { 1549 dl->ops.target.offset = dl->ops.target.addr - 1550 map__rip_2objdump(map, sym->start); 1551 dl->ops.target.offset_avail = true; 1552 } 1553 1554 /* kcore has no symbols, so add the call target symbol */ 1555 if (dl->ins.ops && ins__is_call(&dl->ins) && !dl->ops.target.sym) { 1556 struct addr_map_symbol target = { 1557 .map = map, 1558 .addr = dl->ops.target.addr, 1559 }; 1560 1561 if (!map_groups__find_ams(&target) && 1562 target.sym->start == target.al_addr) 1563 dl->ops.target.sym = target.sym; 1564 } 1565 1566 annotation_line__add(&dl->al, ¬es->src->source); 1567 1568 return 0; 1569 } 1570 1571 static __attribute__((constructor)) void symbol__init_regexpr(void) 1572 { 1573 regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED); 1574 } 1575 1576 static void delete_last_nop(struct symbol *sym) 1577 { 1578 struct annotation *notes = symbol__annotation(sym); 1579 struct list_head *list = ¬es->src->source; 1580 struct disasm_line *dl; 1581 1582 while (!list_empty(list)) { 1583 dl = list_entry(list->prev, struct disasm_line, al.node); 1584 1585 if (dl->ins.ops) { 1586 if (dl->ins.ops != &nop_ops) 1587 return; 1588 } else { 1589 if (!strstr(dl->al.line, " nop ") && 1590 !strstr(dl->al.line, " nopl ") && 1591 !strstr(dl->al.line, " nopw ")) 1592 return; 1593 } 1594 1595 list_del_init(&dl->al.node); 1596 disasm_line__free(dl); 1597 } 1598 } 1599 1600 int symbol__strerror_disassemble(struct symbol *sym __maybe_unused, struct map *map, 1601 int errnum, char *buf, size_t buflen) 1602 { 1603 struct dso *dso = map->dso; 1604 1605 BUG_ON(buflen == 0); 1606 1607 if (errnum >= 0) { 1608 str_error_r(errnum, buf, buflen); 1609 return 0; 1610 } 1611 1612 switch (errnum) { 1613 case SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX: { 1614 char bf[SBUILD_ID_SIZE + 15] = " with build id "; 1615 char *build_id_msg = NULL; 1616 1617 if (dso->has_build_id) { 1618 build_id__sprintf(dso->build_id, 1619 sizeof(dso->build_id), bf + 15); 1620 build_id_msg = bf; 1621 } 1622 scnprintf(buf, buflen, 1623 "No vmlinux file%s\nwas found in the path.\n\n" 1624 "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n" 1625 "Please use:\n\n" 1626 " perf buildid-cache -vu vmlinux\n\n" 1627 "or:\n\n" 1628 " --vmlinux vmlinux\n", build_id_msg ?: ""); 1629 } 1630 break; 1631 case SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF: 1632 scnprintf(buf, buflen, "Please link with binutils's libopcode to enable BPF annotation"); 1633 break; 1634 case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP: 1635 scnprintf(buf, buflen, "Problems with arch specific instruction name regular expressions."); 1636 break; 1637 case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING: 1638 scnprintf(buf, buflen, "Problems while parsing the CPUID in the arch specific initialization."); 1639 break; 1640 case SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE: 1641 scnprintf(buf, buflen, "Invalid BPF file: %s.", dso->long_name); 1642 break; 1643 case SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF: 1644 scnprintf(buf, buflen, "The %s BPF file has no BTF section, compile with -g or use pahole -J.", 1645 dso->long_name); 1646 break; 1647 default: 1648 scnprintf(buf, buflen, "Internal error: Invalid %d error code\n", errnum); 1649 break; 1650 } 1651 1652 return 0; 1653 } 1654 1655 static int dso__disassemble_filename(struct dso *dso, char *filename, size_t filename_size) 1656 { 1657 char linkname[PATH_MAX]; 1658 char *build_id_filename; 1659 char *build_id_path = NULL; 1660 char *pos; 1661 1662 if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && 1663 !dso__is_kcore(dso)) 1664 return SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX; 1665 1666 build_id_filename = dso__build_id_filename(dso, NULL, 0, false); 1667 if (build_id_filename) { 1668 __symbol__join_symfs(filename, filename_size, build_id_filename); 1669 free(build_id_filename); 1670 } else { 1671 if (dso->has_build_id) 1672 return ENOMEM; 1673 goto fallback; 1674 } 1675 1676 build_id_path = strdup(filename); 1677 if (!build_id_path) 1678 return ENOMEM; 1679 1680 /* 1681 * old style build-id cache has name of XX/XXXXXXX.. while 1682 * new style has XX/XXXXXXX../{elf,kallsyms,vdso}. 1683 * extract the build-id part of dirname in the new style only. 1684 */ 1685 pos = strrchr(build_id_path, '/'); 1686 if (pos && strlen(pos) < SBUILD_ID_SIZE - 2) 1687 dirname(build_id_path); 1688 1689 if (dso__is_kcore(dso) || 1690 readlink(build_id_path, linkname, sizeof(linkname)) < 0 || 1691 strstr(linkname, DSO__NAME_KALLSYMS) || 1692 access(filename, R_OK)) { 1693 fallback: 1694 /* 1695 * If we don't have build-ids or the build-id file isn't in the 1696 * cache, or is just a kallsyms file, well, lets hope that this 1697 * DSO is the same as when 'perf record' ran. 1698 */ 1699 __symbol__join_symfs(filename, filename_size, dso->long_name); 1700 } 1701 1702 free(build_id_path); 1703 return 0; 1704 } 1705 1706 #if defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT) 1707 #define PACKAGE "perf" 1708 #include <bfd.h> 1709 #include <dis-asm.h> 1710 1711 static int symbol__disassemble_bpf(struct symbol *sym, 1712 struct annotate_args *args) 1713 { 1714 struct annotation *notes = symbol__annotation(sym); 1715 struct annotation_options *opts = args->options; 1716 struct bpf_prog_info_linear *info_linear; 1717 struct bpf_prog_linfo *prog_linfo = NULL; 1718 struct bpf_prog_info_node *info_node; 1719 int len = sym->end - sym->start; 1720 disassembler_ftype disassemble; 1721 struct map *map = args->ms.map; 1722 struct disassemble_info info; 1723 struct dso *dso = map->dso; 1724 int pc = 0, count, sub_id; 1725 struct btf *btf = NULL; 1726 char tpath[PATH_MAX]; 1727 size_t buf_size; 1728 int nr_skip = 0; 1729 char *buf; 1730 bfd *bfdf; 1731 int ret; 1732 FILE *s; 1733 1734 if (dso->binary_type != DSO_BINARY_TYPE__BPF_PROG_INFO) 1735 return SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE; 1736 1737 pr_debug("%s: handling sym %s addr %" PRIx64 " len %" PRIx64 "\n", __func__, 1738 sym->name, sym->start, sym->end - sym->start); 1739 1740 memset(tpath, 0, sizeof(tpath)); 1741 perf_exe(tpath, sizeof(tpath)); 1742 1743 bfdf = bfd_openr(tpath, NULL); 1744 assert(bfdf); 1745 assert(bfd_check_format(bfdf, bfd_object)); 1746 1747 s = open_memstream(&buf, &buf_size); 1748 if (!s) { 1749 ret = errno; 1750 goto out; 1751 } 1752 init_disassemble_info(&info, s, 1753 (fprintf_ftype) fprintf); 1754 1755 info.arch = bfd_get_arch(bfdf); 1756 info.mach = bfd_get_mach(bfdf); 1757 1758 info_node = perf_env__find_bpf_prog_info(dso->bpf_prog.env, 1759 dso->bpf_prog.id); 1760 if (!info_node) { 1761 ret = SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF; 1762 goto out; 1763 } 1764 info_linear = info_node->info_linear; 1765 sub_id = dso->bpf_prog.sub_id; 1766 1767 info.buffer = (void *)(uintptr_t)(info_linear->info.jited_prog_insns); 1768 info.buffer_length = info_linear->info.jited_prog_len; 1769 1770 if (info_linear->info.nr_line_info) 1771 prog_linfo = bpf_prog_linfo__new(&info_linear->info); 1772 1773 if (info_linear->info.btf_id) { 1774 struct btf_node *node; 1775 1776 node = perf_env__find_btf(dso->bpf_prog.env, 1777 info_linear->info.btf_id); 1778 if (node) 1779 btf = btf__new((__u8 *)(node->data), 1780 node->data_size); 1781 } 1782 1783 disassemble_init_for_target(&info); 1784 1785 #ifdef DISASM_FOUR_ARGS_SIGNATURE 1786 disassemble = disassembler(info.arch, 1787 bfd_big_endian(bfdf), 1788 info.mach, 1789 bfdf); 1790 #else 1791 disassemble = disassembler(bfdf); 1792 #endif 1793 assert(disassemble); 1794 1795 fflush(s); 1796 do { 1797 const struct bpf_line_info *linfo = NULL; 1798 struct disasm_line *dl; 1799 size_t prev_buf_size; 1800 const char *srcline; 1801 u64 addr; 1802 1803 addr = pc + ((u64 *)(uintptr_t)(info_linear->info.jited_ksyms))[sub_id]; 1804 count = disassemble(pc, &info); 1805 1806 if (prog_linfo) 1807 linfo = bpf_prog_linfo__lfind_addr_func(prog_linfo, 1808 addr, sub_id, 1809 nr_skip); 1810 1811 if (linfo && btf) { 1812 srcline = btf__name_by_offset(btf, linfo->line_off); 1813 nr_skip++; 1814 } else 1815 srcline = NULL; 1816 1817 fprintf(s, "\n"); 1818 prev_buf_size = buf_size; 1819 fflush(s); 1820 1821 if (!opts->hide_src_code && srcline) { 1822 args->offset = -1; 1823 args->line = strdup(srcline); 1824 args->line_nr = 0; 1825 args->ms.sym = sym; 1826 dl = disasm_line__new(args); 1827 if (dl) { 1828 annotation_line__add(&dl->al, 1829 ¬es->src->source); 1830 } 1831 } 1832 1833 args->offset = pc; 1834 args->line = buf + prev_buf_size; 1835 args->line_nr = 0; 1836 args->ms.sym = sym; 1837 dl = disasm_line__new(args); 1838 if (dl) 1839 annotation_line__add(&dl->al, ¬es->src->source); 1840 1841 pc += count; 1842 } while (count > 0 && pc < len); 1843 1844 ret = 0; 1845 out: 1846 free(prog_linfo); 1847 free(btf); 1848 fclose(s); 1849 bfd_close(bfdf); 1850 return ret; 1851 } 1852 #else // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT) 1853 static int symbol__disassemble_bpf(struct symbol *sym __maybe_unused, 1854 struct annotate_args *args __maybe_unused) 1855 { 1856 return SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF; 1857 } 1858 #endif // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT) 1859 1860 static int symbol__disassemble(struct symbol *sym, struct annotate_args *args) 1861 { 1862 struct annotation_options *opts = args->options; 1863 struct map *map = args->ms.map; 1864 struct dso *dso = map->dso; 1865 char *command; 1866 FILE *file; 1867 char symfs_filename[PATH_MAX]; 1868 struct kcore_extract kce; 1869 bool delete_extract = false; 1870 bool decomp = false; 1871 int stdout_fd[2]; 1872 int lineno = 0; 1873 int nline; 1874 pid_t pid; 1875 int err = dso__disassemble_filename(dso, symfs_filename, sizeof(symfs_filename)); 1876 1877 if (err) 1878 return err; 1879 1880 pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__, 1881 symfs_filename, sym->name, map->unmap_ip(map, sym->start), 1882 map->unmap_ip(map, sym->end)); 1883 1884 pr_debug("annotating [%p] %30s : [%p] %30s\n", 1885 dso, dso->long_name, sym, sym->name); 1886 1887 if (dso->binary_type == DSO_BINARY_TYPE__BPF_PROG_INFO) { 1888 return symbol__disassemble_bpf(sym, args); 1889 } else if (dso__is_kcore(dso)) { 1890 kce.kcore_filename = symfs_filename; 1891 kce.addr = map__rip_2objdump(map, sym->start); 1892 kce.offs = sym->start; 1893 kce.len = sym->end - sym->start; 1894 if (!kcore_extract__create(&kce)) { 1895 delete_extract = true; 1896 strlcpy(symfs_filename, kce.extract_filename, 1897 sizeof(symfs_filename)); 1898 } 1899 } else if (dso__needs_decompress(dso)) { 1900 char tmp[KMOD_DECOMP_LEN]; 1901 1902 if (dso__decompress_kmodule_path(dso, symfs_filename, 1903 tmp, sizeof(tmp)) < 0) 1904 goto out; 1905 1906 decomp = true; 1907 strcpy(symfs_filename, tmp); 1908 } 1909 1910 err = asprintf(&command, 1911 "%s %s%s --start-address=0x%016" PRIx64 1912 " --stop-address=0x%016" PRIx64 1913 " -l -d %s %s -C \"$1\" 2>/dev/null|grep -v \"$1:\"|expand", 1914 opts->objdump_path ?: "objdump", 1915 opts->disassembler_style ? "-M " : "", 1916 opts->disassembler_style ?: "", 1917 map__rip_2objdump(map, sym->start), 1918 map__rip_2objdump(map, sym->end), 1919 opts->show_asm_raw ? "" : "--no-show-raw", 1920 opts->annotate_src ? "-S" : ""); 1921 1922 if (err < 0) { 1923 pr_err("Failure allocating memory for the command to run\n"); 1924 goto out_remove_tmp; 1925 } 1926 1927 pr_debug("Executing: %s\n", command); 1928 1929 err = -1; 1930 if (pipe(stdout_fd) < 0) { 1931 pr_err("Failure creating the pipe to run %s\n", command); 1932 goto out_free_command; 1933 } 1934 1935 pid = fork(); 1936 if (pid < 0) { 1937 pr_err("Failure forking to run %s\n", command); 1938 goto out_close_stdout; 1939 } 1940 1941 if (pid == 0) { 1942 close(stdout_fd[0]); 1943 dup2(stdout_fd[1], 1); 1944 close(stdout_fd[1]); 1945 execl("/bin/sh", "sh", "-c", command, "--", symfs_filename, 1946 NULL); 1947 perror(command); 1948 exit(-1); 1949 } 1950 1951 close(stdout_fd[1]); 1952 1953 file = fdopen(stdout_fd[0], "r"); 1954 if (!file) { 1955 pr_err("Failure creating FILE stream for %s\n", command); 1956 /* 1957 * If we were using debug info should retry with 1958 * original binary. 1959 */ 1960 goto out_free_command; 1961 } 1962 1963 nline = 0; 1964 while (!feof(file)) { 1965 /* 1966 * The source code line number (lineno) needs to be kept in 1967 * across calls to symbol__parse_objdump_line(), so that it 1968 * can associate it with the instructions till the next one. 1969 * See disasm_line__new() and struct disasm_line::line_nr. 1970 */ 1971 if (symbol__parse_objdump_line(sym, file, args, &lineno) < 0) 1972 break; 1973 nline++; 1974 } 1975 1976 if (nline == 0) 1977 pr_err("No output from %s\n", command); 1978 1979 /* 1980 * kallsyms does not have symbol sizes so there may a nop at the end. 1981 * Remove it. 1982 */ 1983 if (dso__is_kcore(dso)) 1984 delete_last_nop(sym); 1985 1986 fclose(file); 1987 err = 0; 1988 out_free_command: 1989 free(command); 1990 out_remove_tmp: 1991 close(stdout_fd[0]); 1992 1993 if (decomp) 1994 unlink(symfs_filename); 1995 1996 if (delete_extract) 1997 kcore_extract__delete(&kce); 1998 out: 1999 return err; 2000 2001 out_close_stdout: 2002 close(stdout_fd[1]); 2003 goto out_free_command; 2004 } 2005 2006 static void calc_percent(struct sym_hist *sym_hist, 2007 struct hists *hists, 2008 struct annotation_data *data, 2009 s64 offset, s64 end) 2010 { 2011 unsigned int hits = 0; 2012 u64 period = 0; 2013 2014 while (offset < end) { 2015 hits += sym_hist->addr[offset].nr_samples; 2016 period += sym_hist->addr[offset].period; 2017 ++offset; 2018 } 2019 2020 if (sym_hist->nr_samples) { 2021 data->he.period = period; 2022 data->he.nr_samples = hits; 2023 data->percent[PERCENT_HITS_LOCAL] = 100.0 * hits / sym_hist->nr_samples; 2024 } 2025 2026 if (hists->stats.nr_non_filtered_samples) 2027 data->percent[PERCENT_HITS_GLOBAL] = 100.0 * hits / hists->stats.nr_non_filtered_samples; 2028 2029 if (sym_hist->period) 2030 data->percent[PERCENT_PERIOD_LOCAL] = 100.0 * period / sym_hist->period; 2031 2032 if (hists->stats.total_period) 2033 data->percent[PERCENT_PERIOD_GLOBAL] = 100.0 * period / hists->stats.total_period; 2034 } 2035 2036 static void annotation__calc_percent(struct annotation *notes, 2037 struct evsel *leader, s64 len) 2038 { 2039 struct annotation_line *al, *next; 2040 struct evsel *evsel; 2041 2042 list_for_each_entry(al, ¬es->src->source, node) { 2043 s64 end; 2044 int i = 0; 2045 2046 if (al->offset == -1) 2047 continue; 2048 2049 next = annotation_line__next(al, ¬es->src->source); 2050 end = next ? next->offset : len; 2051 2052 for_each_group_evsel(evsel, leader) { 2053 struct hists *hists = evsel__hists(evsel); 2054 struct annotation_data *data; 2055 struct sym_hist *sym_hist; 2056 2057 BUG_ON(i >= al->data_nr); 2058 2059 sym_hist = annotation__histogram(notes, evsel->idx); 2060 data = &al->data[i++]; 2061 2062 calc_percent(sym_hist, hists, data, al->offset, end); 2063 } 2064 } 2065 } 2066 2067 void symbol__calc_percent(struct symbol *sym, struct evsel *evsel) 2068 { 2069 struct annotation *notes = symbol__annotation(sym); 2070 2071 annotation__calc_percent(notes, evsel, symbol__size(sym)); 2072 } 2073 2074 int symbol__annotate(struct symbol *sym, struct map *map, 2075 struct evsel *evsel, size_t privsize, 2076 struct annotation_options *options, 2077 struct arch **parch) 2078 { 2079 struct annotation *notes = symbol__annotation(sym); 2080 struct annotate_args args = { 2081 .privsize = privsize, 2082 .evsel = evsel, 2083 .options = options, 2084 }; 2085 struct perf_env *env = perf_evsel__env(evsel); 2086 const char *arch_name = perf_env__arch(env); 2087 struct arch *arch; 2088 int err; 2089 2090 if (!arch_name) 2091 return errno; 2092 2093 args.arch = arch = arch__find(arch_name); 2094 if (arch == NULL) 2095 return ENOTSUP; 2096 2097 if (parch) 2098 *parch = arch; 2099 2100 if (arch->init) { 2101 err = arch->init(arch, env ? env->cpuid : NULL); 2102 if (err) { 2103 pr_err("%s: failed to initialize %s arch priv area\n", __func__, arch->name); 2104 return err; 2105 } 2106 } 2107 2108 args.ms.map = map; 2109 args.ms.sym = sym; 2110 notes->start = map__rip_2objdump(map, sym->start); 2111 2112 return symbol__disassemble(sym, &args); 2113 } 2114 2115 static void insert_source_line(struct rb_root *root, struct annotation_line *al, 2116 struct annotation_options *opts) 2117 { 2118 struct annotation_line *iter; 2119 struct rb_node **p = &root->rb_node; 2120 struct rb_node *parent = NULL; 2121 int i, ret; 2122 2123 while (*p != NULL) { 2124 parent = *p; 2125 iter = rb_entry(parent, struct annotation_line, rb_node); 2126 2127 ret = strcmp(iter->path, al->path); 2128 if (ret == 0) { 2129 for (i = 0; i < al->data_nr; i++) { 2130 iter->data[i].percent_sum += annotation_data__percent(&al->data[i], 2131 opts->percent_type); 2132 } 2133 return; 2134 } 2135 2136 if (ret < 0) 2137 p = &(*p)->rb_left; 2138 else 2139 p = &(*p)->rb_right; 2140 } 2141 2142 for (i = 0; i < al->data_nr; i++) { 2143 al->data[i].percent_sum = annotation_data__percent(&al->data[i], 2144 opts->percent_type); 2145 } 2146 2147 rb_link_node(&al->rb_node, parent, p); 2148 rb_insert_color(&al->rb_node, root); 2149 } 2150 2151 static int cmp_source_line(struct annotation_line *a, struct annotation_line *b) 2152 { 2153 int i; 2154 2155 for (i = 0; i < a->data_nr; i++) { 2156 if (a->data[i].percent_sum == b->data[i].percent_sum) 2157 continue; 2158 return a->data[i].percent_sum > b->data[i].percent_sum; 2159 } 2160 2161 return 0; 2162 } 2163 2164 static void __resort_source_line(struct rb_root *root, struct annotation_line *al) 2165 { 2166 struct annotation_line *iter; 2167 struct rb_node **p = &root->rb_node; 2168 struct rb_node *parent = NULL; 2169 2170 while (*p != NULL) { 2171 parent = *p; 2172 iter = rb_entry(parent, struct annotation_line, rb_node); 2173 2174 if (cmp_source_line(al, iter)) 2175 p = &(*p)->rb_left; 2176 else 2177 p = &(*p)->rb_right; 2178 } 2179 2180 rb_link_node(&al->rb_node, parent, p); 2181 rb_insert_color(&al->rb_node, root); 2182 } 2183 2184 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root) 2185 { 2186 struct annotation_line *al; 2187 struct rb_node *node; 2188 2189 node = rb_first(src_root); 2190 while (node) { 2191 struct rb_node *next; 2192 2193 al = rb_entry(node, struct annotation_line, rb_node); 2194 next = rb_next(node); 2195 rb_erase(node, src_root); 2196 2197 __resort_source_line(dest_root, al); 2198 node = next; 2199 } 2200 } 2201 2202 static void print_summary(struct rb_root *root, const char *filename) 2203 { 2204 struct annotation_line *al; 2205 struct rb_node *node; 2206 2207 printf("\nSorted summary for file %s\n", filename); 2208 printf("----------------------------------------------\n\n"); 2209 2210 if (RB_EMPTY_ROOT(root)) { 2211 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN); 2212 return; 2213 } 2214 2215 node = rb_first(root); 2216 while (node) { 2217 double percent, percent_max = 0.0; 2218 const char *color; 2219 char *path; 2220 int i; 2221 2222 al = rb_entry(node, struct annotation_line, rb_node); 2223 for (i = 0; i < al->data_nr; i++) { 2224 percent = al->data[i].percent_sum; 2225 color = get_percent_color(percent); 2226 color_fprintf(stdout, color, " %7.2f", percent); 2227 2228 if (percent > percent_max) 2229 percent_max = percent; 2230 } 2231 2232 path = al->path; 2233 color = get_percent_color(percent_max); 2234 color_fprintf(stdout, color, " %s\n", path); 2235 2236 node = rb_next(node); 2237 } 2238 } 2239 2240 static void symbol__annotate_hits(struct symbol *sym, struct evsel *evsel) 2241 { 2242 struct annotation *notes = symbol__annotation(sym); 2243 struct sym_hist *h = annotation__histogram(notes, evsel->idx); 2244 u64 len = symbol__size(sym), offset; 2245 2246 for (offset = 0; offset < len; ++offset) 2247 if (h->addr[offset].nr_samples != 0) 2248 printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2, 2249 sym->start + offset, h->addr[offset].nr_samples); 2250 printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->nr_samples", h->nr_samples); 2251 } 2252 2253 static int annotated_source__addr_fmt_width(struct list_head *lines, u64 start) 2254 { 2255 char bf[32]; 2256 struct annotation_line *line; 2257 2258 list_for_each_entry_reverse(line, lines, node) { 2259 if (line->offset != -1) 2260 return scnprintf(bf, sizeof(bf), "%" PRIx64, start + line->offset); 2261 } 2262 2263 return 0; 2264 } 2265 2266 int symbol__annotate_printf(struct symbol *sym, struct map *map, 2267 struct evsel *evsel, 2268 struct annotation_options *opts) 2269 { 2270 struct dso *dso = map->dso; 2271 char *filename; 2272 const char *d_filename; 2273 const char *evsel_name = perf_evsel__name(evsel); 2274 struct annotation *notes = symbol__annotation(sym); 2275 struct sym_hist *h = annotation__histogram(notes, evsel->idx); 2276 struct annotation_line *pos, *queue = NULL; 2277 u64 start = map__rip_2objdump(map, sym->start); 2278 int printed = 2, queue_len = 0, addr_fmt_width; 2279 int more = 0; 2280 bool context = opts->context; 2281 u64 len; 2282 int width = symbol_conf.show_total_period ? 12 : 8; 2283 int graph_dotted_len; 2284 char buf[512]; 2285 2286 filename = strdup(dso->long_name); 2287 if (!filename) 2288 return -ENOMEM; 2289 2290 if (opts->full_path) 2291 d_filename = filename; 2292 else 2293 d_filename = basename(filename); 2294 2295 len = symbol__size(sym); 2296 2297 if (perf_evsel__is_group_event(evsel)) { 2298 width *= evsel->core.nr_members; 2299 perf_evsel__group_desc(evsel, buf, sizeof(buf)); 2300 evsel_name = buf; 2301 } 2302 2303 graph_dotted_len = printf(" %-*.*s| Source code & Disassembly of %s for %s (%" PRIu64 " samples, " 2304 "percent: %s)\n", 2305 width, width, symbol_conf.show_total_period ? "Period" : 2306 symbol_conf.show_nr_samples ? "Samples" : "Percent", 2307 d_filename, evsel_name, h->nr_samples, 2308 percent_type_str(opts->percent_type)); 2309 2310 printf("%-*.*s----\n", 2311 graph_dotted_len, graph_dotted_len, graph_dotted_line); 2312 2313 if (verbose > 0) 2314 symbol__annotate_hits(sym, evsel); 2315 2316 addr_fmt_width = annotated_source__addr_fmt_width(¬es->src->source, start); 2317 2318 list_for_each_entry(pos, ¬es->src->source, node) { 2319 int err; 2320 2321 if (context && queue == NULL) { 2322 queue = pos; 2323 queue_len = 0; 2324 } 2325 2326 err = annotation_line__print(pos, sym, start, evsel, len, 2327 opts->min_pcnt, printed, opts->max_lines, 2328 queue, addr_fmt_width, opts->percent_type); 2329 2330 switch (err) { 2331 case 0: 2332 ++printed; 2333 if (context) { 2334 printed += queue_len; 2335 queue = NULL; 2336 queue_len = 0; 2337 } 2338 break; 2339 case 1: 2340 /* filtered by max_lines */ 2341 ++more; 2342 break; 2343 case -1: 2344 default: 2345 /* 2346 * Filtered by min_pcnt or non IP lines when 2347 * context != 0 2348 */ 2349 if (!context) 2350 break; 2351 if (queue_len == context) 2352 queue = list_entry(queue->node.next, typeof(*queue), node); 2353 else 2354 ++queue_len; 2355 break; 2356 } 2357 } 2358 2359 free(filename); 2360 2361 return more; 2362 } 2363 2364 static void FILE__set_percent_color(void *fp __maybe_unused, 2365 double percent __maybe_unused, 2366 bool current __maybe_unused) 2367 { 2368 } 2369 2370 static int FILE__set_jumps_percent_color(void *fp __maybe_unused, 2371 int nr __maybe_unused, bool current __maybe_unused) 2372 { 2373 return 0; 2374 } 2375 2376 static int FILE__set_color(void *fp __maybe_unused, int color __maybe_unused) 2377 { 2378 return 0; 2379 } 2380 2381 static void FILE__printf(void *fp, const char *fmt, ...) 2382 { 2383 va_list args; 2384 2385 va_start(args, fmt); 2386 vfprintf(fp, fmt, args); 2387 va_end(args); 2388 } 2389 2390 static void FILE__write_graph(void *fp, int graph) 2391 { 2392 const char *s; 2393 switch (graph) { 2394 2395 case DARROW_CHAR: s = "↓"; break; 2396 case UARROW_CHAR: s = "↑"; break; 2397 case LARROW_CHAR: s = "←"; break; 2398 case RARROW_CHAR: s = "→"; break; 2399 default: s = "?"; break; 2400 } 2401 2402 fputs(s, fp); 2403 } 2404 2405 static int symbol__annotate_fprintf2(struct symbol *sym, FILE *fp, 2406 struct annotation_options *opts) 2407 { 2408 struct annotation *notes = symbol__annotation(sym); 2409 struct annotation_write_ops wops = { 2410 .first_line = true, 2411 .obj = fp, 2412 .set_color = FILE__set_color, 2413 .set_percent_color = FILE__set_percent_color, 2414 .set_jumps_percent_color = FILE__set_jumps_percent_color, 2415 .printf = FILE__printf, 2416 .write_graph = FILE__write_graph, 2417 }; 2418 struct annotation_line *al; 2419 2420 list_for_each_entry(al, ¬es->src->source, node) { 2421 if (annotation_line__filter(al, notes)) 2422 continue; 2423 annotation_line__write(al, notes, &wops, opts); 2424 fputc('\n', fp); 2425 wops.first_line = false; 2426 } 2427 2428 return 0; 2429 } 2430 2431 int map_symbol__annotation_dump(struct map_symbol *ms, struct evsel *evsel, 2432 struct annotation_options *opts) 2433 { 2434 const char *ev_name = perf_evsel__name(evsel); 2435 char buf[1024]; 2436 char *filename; 2437 int err = -1; 2438 FILE *fp; 2439 2440 if (asprintf(&filename, "%s.annotation", ms->sym->name) < 0) 2441 return -1; 2442 2443 fp = fopen(filename, "w"); 2444 if (fp == NULL) 2445 goto out_free_filename; 2446 2447 if (perf_evsel__is_group_event(evsel)) { 2448 perf_evsel__group_desc(evsel, buf, sizeof(buf)); 2449 ev_name = buf; 2450 } 2451 2452 fprintf(fp, "%s() %s\nEvent: %s\n\n", 2453 ms->sym->name, ms->map->dso->long_name, ev_name); 2454 symbol__annotate_fprintf2(ms->sym, fp, opts); 2455 2456 fclose(fp); 2457 err = 0; 2458 out_free_filename: 2459 free(filename); 2460 return err; 2461 } 2462 2463 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx) 2464 { 2465 struct annotation *notes = symbol__annotation(sym); 2466 struct sym_hist *h = annotation__histogram(notes, evidx); 2467 2468 memset(h, 0, notes->src->sizeof_sym_hist); 2469 } 2470 2471 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx) 2472 { 2473 struct annotation *notes = symbol__annotation(sym); 2474 struct sym_hist *h = annotation__histogram(notes, evidx); 2475 int len = symbol__size(sym), offset; 2476 2477 h->nr_samples = 0; 2478 for (offset = 0; offset < len; ++offset) { 2479 h->addr[offset].nr_samples = h->addr[offset].nr_samples * 7 / 8; 2480 h->nr_samples += h->addr[offset].nr_samples; 2481 } 2482 } 2483 2484 void annotated_source__purge(struct annotated_source *as) 2485 { 2486 struct annotation_line *al, *n; 2487 2488 list_for_each_entry_safe(al, n, &as->source, node) { 2489 list_del_init(&al->node); 2490 disasm_line__free(disasm_line(al)); 2491 } 2492 } 2493 2494 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp) 2495 { 2496 size_t printed; 2497 2498 if (dl->al.offset == -1) 2499 return fprintf(fp, "%s\n", dl->al.line); 2500 2501 printed = fprintf(fp, "%#" PRIx64 " %s", dl->al.offset, dl->ins.name); 2502 2503 if (dl->ops.raw[0] != '\0') { 2504 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ", 2505 dl->ops.raw); 2506 } 2507 2508 return printed + fprintf(fp, "\n"); 2509 } 2510 2511 size_t disasm__fprintf(struct list_head *head, FILE *fp) 2512 { 2513 struct disasm_line *pos; 2514 size_t printed = 0; 2515 2516 list_for_each_entry(pos, head, al.node) 2517 printed += disasm_line__fprintf(pos, fp); 2518 2519 return printed; 2520 } 2521 2522 bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym) 2523 { 2524 if (!dl || !dl->ins.ops || !ins__is_jump(&dl->ins) || 2525 !disasm_line__has_local_offset(dl) || dl->ops.target.offset < 0 || 2526 dl->ops.target.offset >= (s64)symbol__size(sym)) 2527 return false; 2528 2529 return true; 2530 } 2531 2532 void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym) 2533 { 2534 u64 offset, size = symbol__size(sym); 2535 2536 /* PLT symbols contain external offsets */ 2537 if (strstr(sym->name, "@plt")) 2538 return; 2539 2540 for (offset = 0; offset < size; ++offset) { 2541 struct annotation_line *al = notes->offsets[offset]; 2542 struct disasm_line *dl; 2543 2544 dl = disasm_line(al); 2545 2546 if (!disasm_line__is_valid_local_jump(dl, sym)) 2547 continue; 2548 2549 al = notes->offsets[dl->ops.target.offset]; 2550 2551 /* 2552 * FIXME: Oops, no jump target? Buggy disassembler? Or do we 2553 * have to adjust to the previous offset? 2554 */ 2555 if (al == NULL) 2556 continue; 2557 2558 if (++al->jump_sources > notes->max_jump_sources) 2559 notes->max_jump_sources = al->jump_sources; 2560 2561 ++notes->nr_jumps; 2562 } 2563 } 2564 2565 void annotation__set_offsets(struct annotation *notes, s64 size) 2566 { 2567 struct annotation_line *al; 2568 2569 notes->max_line_len = 0; 2570 2571 list_for_each_entry(al, ¬es->src->source, node) { 2572 size_t line_len = strlen(al->line); 2573 2574 if (notes->max_line_len < line_len) 2575 notes->max_line_len = line_len; 2576 al->idx = notes->nr_entries++; 2577 if (al->offset != -1) { 2578 al->idx_asm = notes->nr_asm_entries++; 2579 /* 2580 * FIXME: short term bandaid to cope with assembly 2581 * routines that comes with labels in the same column 2582 * as the address in objdump, sigh. 2583 * 2584 * E.g. copy_user_generic_unrolled 2585 */ 2586 if (al->offset < size) 2587 notes->offsets[al->offset] = al; 2588 } else 2589 al->idx_asm = -1; 2590 } 2591 } 2592 2593 static inline int width_jumps(int n) 2594 { 2595 if (n >= 100) 2596 return 5; 2597 if (n / 10) 2598 return 2; 2599 return 1; 2600 } 2601 2602 static int annotation__max_ins_name(struct annotation *notes) 2603 { 2604 int max_name = 0, len; 2605 struct annotation_line *al; 2606 2607 list_for_each_entry(al, ¬es->src->source, node) { 2608 if (al->offset == -1) 2609 continue; 2610 2611 len = strlen(disasm_line(al)->ins.name); 2612 if (max_name < len) 2613 max_name = len; 2614 } 2615 2616 return max_name; 2617 } 2618 2619 void annotation__init_column_widths(struct annotation *notes, struct symbol *sym) 2620 { 2621 notes->widths.addr = notes->widths.target = 2622 notes->widths.min_addr = hex_width(symbol__size(sym)); 2623 notes->widths.max_addr = hex_width(sym->end); 2624 notes->widths.jumps = width_jumps(notes->max_jump_sources); 2625 notes->widths.max_ins_name = annotation__max_ins_name(notes); 2626 } 2627 2628 void annotation__update_column_widths(struct annotation *notes) 2629 { 2630 if (notes->options->use_offset) 2631 notes->widths.target = notes->widths.min_addr; 2632 else 2633 notes->widths.target = notes->widths.max_addr; 2634 2635 notes->widths.addr = notes->widths.target; 2636 2637 if (notes->options->show_nr_jumps) 2638 notes->widths.addr += notes->widths.jumps + 1; 2639 } 2640 2641 static void annotation__calc_lines(struct annotation *notes, struct map *map, 2642 struct rb_root *root, 2643 struct annotation_options *opts) 2644 { 2645 struct annotation_line *al; 2646 struct rb_root tmp_root = RB_ROOT; 2647 2648 list_for_each_entry(al, ¬es->src->source, node) { 2649 double percent_max = 0.0; 2650 int i; 2651 2652 for (i = 0; i < al->data_nr; i++) { 2653 double percent; 2654 2655 percent = annotation_data__percent(&al->data[i], 2656 opts->percent_type); 2657 2658 if (percent > percent_max) 2659 percent_max = percent; 2660 } 2661 2662 if (percent_max <= 0.5) 2663 continue; 2664 2665 al->path = get_srcline(map->dso, notes->start + al->offset, NULL, 2666 false, true, notes->start + al->offset); 2667 insert_source_line(&tmp_root, al, opts); 2668 } 2669 2670 resort_source_line(root, &tmp_root); 2671 } 2672 2673 static void symbol__calc_lines(struct symbol *sym, struct map *map, 2674 struct rb_root *root, 2675 struct annotation_options *opts) 2676 { 2677 struct annotation *notes = symbol__annotation(sym); 2678 2679 annotation__calc_lines(notes, map, root, opts); 2680 } 2681 2682 int symbol__tty_annotate2(struct symbol *sym, struct map *map, 2683 struct evsel *evsel, 2684 struct annotation_options *opts) 2685 { 2686 struct dso *dso = map->dso; 2687 struct rb_root source_line = RB_ROOT; 2688 struct hists *hists = evsel__hists(evsel); 2689 char buf[1024]; 2690 2691 if (symbol__annotate2(sym, map, evsel, opts, NULL) < 0) 2692 return -1; 2693 2694 if (opts->print_lines) { 2695 srcline_full_filename = opts->full_path; 2696 symbol__calc_lines(sym, map, &source_line, opts); 2697 print_summary(&source_line, dso->long_name); 2698 } 2699 2700 hists__scnprintf_title(hists, buf, sizeof(buf)); 2701 fprintf(stdout, "%s, [percent: %s]\n%s() %s\n", 2702 buf, percent_type_str(opts->percent_type), sym->name, dso->long_name); 2703 symbol__annotate_fprintf2(sym, stdout, opts); 2704 2705 annotated_source__purge(symbol__annotation(sym)->src); 2706 2707 return 0; 2708 } 2709 2710 int symbol__tty_annotate(struct symbol *sym, struct map *map, 2711 struct evsel *evsel, 2712 struct annotation_options *opts) 2713 { 2714 struct dso *dso = map->dso; 2715 struct rb_root source_line = RB_ROOT; 2716 2717 if (symbol__annotate(sym, map, evsel, 0, opts, NULL) < 0) 2718 return -1; 2719 2720 symbol__calc_percent(sym, evsel); 2721 2722 if (opts->print_lines) { 2723 srcline_full_filename = opts->full_path; 2724 symbol__calc_lines(sym, map, &source_line, opts); 2725 print_summary(&source_line, dso->long_name); 2726 } 2727 2728 symbol__annotate_printf(sym, map, evsel, opts); 2729 2730 annotated_source__purge(symbol__annotation(sym)->src); 2731 2732 return 0; 2733 } 2734 2735 bool ui__has_annotation(void) 2736 { 2737 return use_browser == 1 && perf_hpp_list.sym; 2738 } 2739 2740 2741 static double annotation_line__max_percent(struct annotation_line *al, 2742 struct annotation *notes, 2743 unsigned int percent_type) 2744 { 2745 double percent_max = 0.0; 2746 int i; 2747 2748 for (i = 0; i < notes->nr_events; i++) { 2749 double percent; 2750 2751 percent = annotation_data__percent(&al->data[i], 2752 percent_type); 2753 2754 if (percent > percent_max) 2755 percent_max = percent; 2756 } 2757 2758 return percent_max; 2759 } 2760 2761 static void disasm_line__write(struct disasm_line *dl, struct annotation *notes, 2762 void *obj, char *bf, size_t size, 2763 void (*obj__printf)(void *obj, const char *fmt, ...), 2764 void (*obj__write_graph)(void *obj, int graph)) 2765 { 2766 if (dl->ins.ops && dl->ins.ops->scnprintf) { 2767 if (ins__is_jump(&dl->ins)) { 2768 bool fwd; 2769 2770 if (dl->ops.target.outside) 2771 goto call_like; 2772 fwd = dl->ops.target.offset > dl->al.offset; 2773 obj__write_graph(obj, fwd ? DARROW_CHAR : UARROW_CHAR); 2774 obj__printf(obj, " "); 2775 } else if (ins__is_call(&dl->ins)) { 2776 call_like: 2777 obj__write_graph(obj, RARROW_CHAR); 2778 obj__printf(obj, " "); 2779 } else if (ins__is_ret(&dl->ins)) { 2780 obj__write_graph(obj, LARROW_CHAR); 2781 obj__printf(obj, " "); 2782 } else { 2783 obj__printf(obj, " "); 2784 } 2785 } else { 2786 obj__printf(obj, " "); 2787 } 2788 2789 disasm_line__scnprintf(dl, bf, size, !notes->options->use_offset, notes->widths.max_ins_name); 2790 } 2791 2792 static void ipc_coverage_string(char *bf, int size, struct annotation *notes) 2793 { 2794 double ipc = 0.0, coverage = 0.0; 2795 2796 if (notes->hit_cycles) 2797 ipc = notes->hit_insn / ((double)notes->hit_cycles); 2798 2799 if (notes->total_insn) { 2800 coverage = notes->cover_insn * 100.0 / 2801 ((double)notes->total_insn); 2802 } 2803 2804 scnprintf(bf, size, "(Average IPC: %.2f, IPC Coverage: %.1f%%)", 2805 ipc, coverage); 2806 } 2807 2808 static void __annotation_line__write(struct annotation_line *al, struct annotation *notes, 2809 bool first_line, bool current_entry, bool change_color, int width, 2810 void *obj, unsigned int percent_type, 2811 int (*obj__set_color)(void *obj, int color), 2812 void (*obj__set_percent_color)(void *obj, double percent, bool current), 2813 int (*obj__set_jumps_percent_color)(void *obj, int nr, bool current), 2814 void (*obj__printf)(void *obj, const char *fmt, ...), 2815 void (*obj__write_graph)(void *obj, int graph)) 2816 2817 { 2818 double percent_max = annotation_line__max_percent(al, notes, percent_type); 2819 int pcnt_width = annotation__pcnt_width(notes), 2820 cycles_width = annotation__cycles_width(notes); 2821 bool show_title = false; 2822 char bf[256]; 2823 int printed; 2824 2825 if (first_line && (al->offset == -1 || percent_max == 0.0)) { 2826 if (notes->have_cycles) { 2827 if (al->ipc == 0.0 && al->cycles == 0) 2828 show_title = true; 2829 } else 2830 show_title = true; 2831 } 2832 2833 if (al->offset != -1 && percent_max != 0.0) { 2834 int i; 2835 2836 for (i = 0; i < notes->nr_events; i++) { 2837 double percent; 2838 2839 percent = annotation_data__percent(&al->data[i], percent_type); 2840 2841 obj__set_percent_color(obj, percent, current_entry); 2842 if (notes->options->show_total_period) { 2843 obj__printf(obj, "%11" PRIu64 " ", al->data[i].he.period); 2844 } else if (notes->options->show_nr_samples) { 2845 obj__printf(obj, "%6" PRIu64 " ", 2846 al->data[i].he.nr_samples); 2847 } else { 2848 obj__printf(obj, "%6.2f ", percent); 2849 } 2850 } 2851 } else { 2852 obj__set_percent_color(obj, 0, current_entry); 2853 2854 if (!show_title) 2855 obj__printf(obj, "%-*s", pcnt_width, " "); 2856 else { 2857 obj__printf(obj, "%-*s", pcnt_width, 2858 notes->options->show_total_period ? "Period" : 2859 notes->options->show_nr_samples ? "Samples" : "Percent"); 2860 } 2861 } 2862 2863 if (notes->have_cycles) { 2864 if (al->ipc) 2865 obj__printf(obj, "%*.2f ", ANNOTATION__IPC_WIDTH - 1, al->ipc); 2866 else if (!show_title) 2867 obj__printf(obj, "%*s", ANNOTATION__IPC_WIDTH, " "); 2868 else 2869 obj__printf(obj, "%*s ", ANNOTATION__IPC_WIDTH - 1, "IPC"); 2870 2871 if (!notes->options->show_minmax_cycle) { 2872 if (al->cycles) 2873 obj__printf(obj, "%*" PRIu64 " ", 2874 ANNOTATION__CYCLES_WIDTH - 1, al->cycles); 2875 else if (!show_title) 2876 obj__printf(obj, "%*s", 2877 ANNOTATION__CYCLES_WIDTH, " "); 2878 else 2879 obj__printf(obj, "%*s ", 2880 ANNOTATION__CYCLES_WIDTH - 1, 2881 "Cycle"); 2882 } else { 2883 if (al->cycles) { 2884 char str[32]; 2885 2886 scnprintf(str, sizeof(str), 2887 "%" PRIu64 "(%" PRIu64 "/%" PRIu64 ")", 2888 al->cycles, al->cycles_min, 2889 al->cycles_max); 2890 2891 obj__printf(obj, "%*s ", 2892 ANNOTATION__MINMAX_CYCLES_WIDTH - 1, 2893 str); 2894 } else if (!show_title) 2895 obj__printf(obj, "%*s", 2896 ANNOTATION__MINMAX_CYCLES_WIDTH, 2897 " "); 2898 else 2899 obj__printf(obj, "%*s ", 2900 ANNOTATION__MINMAX_CYCLES_WIDTH - 1, 2901 "Cycle(min/max)"); 2902 } 2903 2904 if (show_title && !*al->line) { 2905 ipc_coverage_string(bf, sizeof(bf), notes); 2906 obj__printf(obj, "%*s", ANNOTATION__AVG_IPC_WIDTH, bf); 2907 } 2908 } 2909 2910 obj__printf(obj, " "); 2911 2912 if (!*al->line) 2913 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width, " "); 2914 else if (al->offset == -1) { 2915 if (al->line_nr && notes->options->show_linenr) 2916 printed = scnprintf(bf, sizeof(bf), "%-*d ", notes->widths.addr + 1, al->line_nr); 2917 else 2918 printed = scnprintf(bf, sizeof(bf), "%-*s ", notes->widths.addr, " "); 2919 obj__printf(obj, bf); 2920 obj__printf(obj, "%-*s", width - printed - pcnt_width - cycles_width + 1, al->line); 2921 } else { 2922 u64 addr = al->offset; 2923 int color = -1; 2924 2925 if (!notes->options->use_offset) 2926 addr += notes->start; 2927 2928 if (!notes->options->use_offset) { 2929 printed = scnprintf(bf, sizeof(bf), "%" PRIx64 ": ", addr); 2930 } else { 2931 if (al->jump_sources && 2932 notes->options->offset_level >= ANNOTATION__OFFSET_JUMP_TARGETS) { 2933 if (notes->options->show_nr_jumps) { 2934 int prev; 2935 printed = scnprintf(bf, sizeof(bf), "%*d ", 2936 notes->widths.jumps, 2937 al->jump_sources); 2938 prev = obj__set_jumps_percent_color(obj, al->jump_sources, 2939 current_entry); 2940 obj__printf(obj, bf); 2941 obj__set_color(obj, prev); 2942 } 2943 print_addr: 2944 printed = scnprintf(bf, sizeof(bf), "%*" PRIx64 ": ", 2945 notes->widths.target, addr); 2946 } else if (ins__is_call(&disasm_line(al)->ins) && 2947 notes->options->offset_level >= ANNOTATION__OFFSET_CALL) { 2948 goto print_addr; 2949 } else if (notes->options->offset_level == ANNOTATION__MAX_OFFSET_LEVEL) { 2950 goto print_addr; 2951 } else { 2952 printed = scnprintf(bf, sizeof(bf), "%-*s ", 2953 notes->widths.addr, " "); 2954 } 2955 } 2956 2957 if (change_color) 2958 color = obj__set_color(obj, HE_COLORSET_ADDR); 2959 obj__printf(obj, bf); 2960 if (change_color) 2961 obj__set_color(obj, color); 2962 2963 disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf), obj__printf, obj__write_graph); 2964 2965 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width - 3 - printed, bf); 2966 } 2967 2968 } 2969 2970 void annotation_line__write(struct annotation_line *al, struct annotation *notes, 2971 struct annotation_write_ops *wops, 2972 struct annotation_options *opts) 2973 { 2974 __annotation_line__write(al, notes, wops->first_line, wops->current_entry, 2975 wops->change_color, wops->width, wops->obj, 2976 opts->percent_type, 2977 wops->set_color, wops->set_percent_color, 2978 wops->set_jumps_percent_color, wops->printf, 2979 wops->write_graph); 2980 } 2981 2982 int symbol__annotate2(struct symbol *sym, struct map *map, struct evsel *evsel, 2983 struct annotation_options *options, struct arch **parch) 2984 { 2985 struct annotation *notes = symbol__annotation(sym); 2986 size_t size = symbol__size(sym); 2987 int nr_pcnt = 1, err; 2988 2989 notes->offsets = zalloc(size * sizeof(struct annotation_line *)); 2990 if (notes->offsets == NULL) 2991 return ENOMEM; 2992 2993 if (perf_evsel__is_group_event(evsel)) 2994 nr_pcnt = evsel->core.nr_members; 2995 2996 err = symbol__annotate(sym, map, evsel, 0, options, parch); 2997 if (err) 2998 goto out_free_offsets; 2999 3000 notes->options = options; 3001 3002 symbol__calc_percent(sym, evsel); 3003 3004 annotation__set_offsets(notes, size); 3005 annotation__mark_jump_targets(notes, sym); 3006 annotation__compute_ipc(notes, size); 3007 annotation__init_column_widths(notes, sym); 3008 notes->nr_events = nr_pcnt; 3009 3010 annotation__update_column_widths(notes); 3011 sym->annotate2 = true; 3012 3013 return 0; 3014 3015 out_free_offsets: 3016 zfree(¬es->offsets); 3017 return err; 3018 } 3019 3020 #define ANNOTATION__CFG(n) \ 3021 { .name = #n, .value = &annotation__default_options.n, } 3022 3023 /* 3024 * Keep the entries sorted, they are bsearch'ed 3025 */ 3026 static struct annotation_config { 3027 const char *name; 3028 void *value; 3029 } annotation__configs[] = { 3030 ANNOTATION__CFG(hide_src_code), 3031 ANNOTATION__CFG(jump_arrows), 3032 ANNOTATION__CFG(offset_level), 3033 ANNOTATION__CFG(show_linenr), 3034 ANNOTATION__CFG(show_nr_jumps), 3035 ANNOTATION__CFG(show_nr_samples), 3036 ANNOTATION__CFG(show_total_period), 3037 ANNOTATION__CFG(use_offset), 3038 }; 3039 3040 #undef ANNOTATION__CFG 3041 3042 static int annotation_config__cmp(const void *name, const void *cfgp) 3043 { 3044 const struct annotation_config *cfg = cfgp; 3045 3046 return strcmp(name, cfg->name); 3047 } 3048 3049 static int annotation__config(const char *var, const char *value, 3050 void *data __maybe_unused) 3051 { 3052 struct annotation_config *cfg; 3053 const char *name; 3054 3055 if (!strstarts(var, "annotate.")) 3056 return 0; 3057 3058 name = var + 9; 3059 cfg = bsearch(name, annotation__configs, ARRAY_SIZE(annotation__configs), 3060 sizeof(struct annotation_config), annotation_config__cmp); 3061 3062 if (cfg == NULL) 3063 pr_debug("%s variable unknown, ignoring...", var); 3064 else if (strcmp(var, "annotate.offset_level") == 0) { 3065 perf_config_int(cfg->value, name, value); 3066 3067 if (*(int *)cfg->value > ANNOTATION__MAX_OFFSET_LEVEL) 3068 *(int *)cfg->value = ANNOTATION__MAX_OFFSET_LEVEL; 3069 else if (*(int *)cfg->value < ANNOTATION__MIN_OFFSET_LEVEL) 3070 *(int *)cfg->value = ANNOTATION__MIN_OFFSET_LEVEL; 3071 } else { 3072 *(bool *)cfg->value = perf_config_bool(name, value); 3073 } 3074 return 0; 3075 } 3076 3077 void annotation_config__init(void) 3078 { 3079 perf_config(annotation__config, NULL); 3080 3081 annotation__default_options.show_total_period = symbol_conf.show_total_period; 3082 annotation__default_options.show_nr_samples = symbol_conf.show_nr_samples; 3083 } 3084 3085 static unsigned int parse_percent_type(char *str1, char *str2) 3086 { 3087 unsigned int type = (unsigned int) -1; 3088 3089 if (!strcmp("period", str1)) { 3090 if (!strcmp("local", str2)) 3091 type = PERCENT_PERIOD_LOCAL; 3092 else if (!strcmp("global", str2)) 3093 type = PERCENT_PERIOD_GLOBAL; 3094 } 3095 3096 if (!strcmp("hits", str1)) { 3097 if (!strcmp("local", str2)) 3098 type = PERCENT_HITS_LOCAL; 3099 else if (!strcmp("global", str2)) 3100 type = PERCENT_HITS_GLOBAL; 3101 } 3102 3103 return type; 3104 } 3105 3106 int annotate_parse_percent_type(const struct option *opt, const char *_str, 3107 int unset __maybe_unused) 3108 { 3109 struct annotation_options *opts = opt->value; 3110 unsigned int type; 3111 char *str1, *str2; 3112 int err = -1; 3113 3114 str1 = strdup(_str); 3115 if (!str1) 3116 return -ENOMEM; 3117 3118 str2 = strchr(str1, '-'); 3119 if (!str2) 3120 goto out; 3121 3122 *str2++ = 0; 3123 3124 type = parse_percent_type(str1, str2); 3125 if (type == (unsigned int) -1) 3126 type = parse_percent_type(str2, str1); 3127 if (type != (unsigned int) -1) { 3128 opts->percent_type = type; 3129 err = 0; 3130 } 3131 3132 out: 3133 free(str1); 3134 return err; 3135 } 3136