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 "maps.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 <subcmd/parse-options.h> 45 #include <subcmd/run-command.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 .ms = { .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 (maps__find_ams(ms->maps, &target) == 0 && 274 map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr) 275 ops->target.sym = target.ms.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 .ms = { .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 (maps__find_ams(ms->maps, &target) == 0 && 394 map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr) 395 ops->target.sym = target.ms.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 } 856 857 if (ch[offset].num < NUM_SPARKS) 858 ch[offset].cycles_spark[ch[offset].num] = cycles; 859 860 ch[offset].have_start = have_start; 861 ch[offset].start = start; 862 ch[offset].cycles += cycles; 863 ch[offset].num++; 864 return 0; 865 } 866 867 static int __symbol__inc_addr_samples(struct map_symbol *ms, 868 struct annotated_source *src, int evidx, u64 addr, 869 struct perf_sample *sample) 870 { 871 struct symbol *sym = ms->sym; 872 unsigned offset; 873 struct sym_hist *h; 874 875 pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, ms->map->unmap_ip(ms->map, addr)); 876 877 if ((addr < sym->start || addr >= sym->end) && 878 (addr != sym->end || sym->start != sym->end)) { 879 pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n", 880 __func__, __LINE__, sym->name, sym->start, addr, sym->end); 881 return -ERANGE; 882 } 883 884 offset = addr - sym->start; 885 h = annotated_source__histogram(src, evidx); 886 if (h == NULL) { 887 pr_debug("%s(%d): ENOMEM! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 ", func: %d\n", 888 __func__, __LINE__, sym->name, sym->start, addr, sym->end, sym->type == STT_FUNC); 889 return -ENOMEM; 890 } 891 h->nr_samples++; 892 h->addr[offset].nr_samples++; 893 h->period += sample->period; 894 h->addr[offset].period += sample->period; 895 896 pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64 897 ", evidx=%d] => nr_samples: %" PRIu64 ", period: %" PRIu64 "\n", 898 sym->start, sym->name, addr, addr - sym->start, evidx, 899 h->addr[offset].nr_samples, h->addr[offset].period); 900 return 0; 901 } 902 903 static struct cyc_hist *symbol__cycles_hist(struct symbol *sym) 904 { 905 struct annotation *notes = symbol__annotation(sym); 906 907 if (notes->src == NULL) { 908 notes->src = annotated_source__new(); 909 if (notes->src == NULL) 910 return NULL; 911 goto alloc_cycles_hist; 912 } 913 914 if (!notes->src->cycles_hist) { 915 alloc_cycles_hist: 916 symbol__alloc_hist_cycles(sym); 917 } 918 919 return notes->src->cycles_hist; 920 } 921 922 struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists) 923 { 924 struct annotation *notes = symbol__annotation(sym); 925 926 if (notes->src == NULL) { 927 notes->src = annotated_source__new(); 928 if (notes->src == NULL) 929 return NULL; 930 goto alloc_histograms; 931 } 932 933 if (notes->src->histograms == NULL) { 934 alloc_histograms: 935 annotated_source__alloc_histograms(notes->src, symbol__size(sym), 936 nr_hists); 937 } 938 939 return notes->src; 940 } 941 942 static int symbol__inc_addr_samples(struct map_symbol *ms, 943 struct evsel *evsel, u64 addr, 944 struct perf_sample *sample) 945 { 946 struct symbol *sym = ms->sym; 947 struct annotated_source *src; 948 949 if (sym == NULL) 950 return 0; 951 src = symbol__hists(sym, evsel->evlist->core.nr_entries); 952 return src ? __symbol__inc_addr_samples(ms, src, evsel->idx, addr, sample) : 0; 953 } 954 955 static int symbol__account_cycles(u64 addr, u64 start, 956 struct symbol *sym, unsigned cycles) 957 { 958 struct cyc_hist *cycles_hist; 959 unsigned offset; 960 961 if (sym == NULL) 962 return 0; 963 cycles_hist = symbol__cycles_hist(sym); 964 if (cycles_hist == NULL) 965 return -ENOMEM; 966 if (addr < sym->start || addr >= sym->end) 967 return -ERANGE; 968 969 if (start) { 970 if (start < sym->start || start >= sym->end) 971 return -ERANGE; 972 if (start >= addr) 973 start = 0; 974 } 975 offset = addr - sym->start; 976 return __symbol__account_cycles(cycles_hist, 977 start ? start - sym->start : 0, 978 offset, cycles, 979 !!start); 980 } 981 982 int addr_map_symbol__account_cycles(struct addr_map_symbol *ams, 983 struct addr_map_symbol *start, 984 unsigned cycles) 985 { 986 u64 saddr = 0; 987 int err; 988 989 if (!cycles) 990 return 0; 991 992 /* 993 * Only set start when IPC can be computed. We can only 994 * compute it when the basic block is completely in a single 995 * function. 996 * Special case the case when the jump is elsewhere, but 997 * it starts on the function start. 998 */ 999 if (start && 1000 (start->ms.sym == ams->ms.sym || 1001 (ams->ms.sym && 1002 start->addr == ams->ms.sym->start + ams->ms.map->start))) 1003 saddr = start->al_addr; 1004 if (saddr == 0) 1005 pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n", 1006 ams->addr, 1007 start ? start->addr : 0, 1008 ams->ms.sym ? ams->ms.sym->start + ams->ms.map->start : 0, 1009 saddr); 1010 err = symbol__account_cycles(ams->al_addr, saddr, ams->ms.sym, cycles); 1011 if (err) 1012 pr_debug2("account_cycles failed %d\n", err); 1013 return err; 1014 } 1015 1016 static unsigned annotation__count_insn(struct annotation *notes, u64 start, u64 end) 1017 { 1018 unsigned n_insn = 0; 1019 u64 offset; 1020 1021 for (offset = start; offset <= end; offset++) { 1022 if (notes->offsets[offset]) 1023 n_insn++; 1024 } 1025 return n_insn; 1026 } 1027 1028 static void annotation__count_and_fill(struct annotation *notes, u64 start, u64 end, struct cyc_hist *ch) 1029 { 1030 unsigned n_insn; 1031 unsigned int cover_insn = 0; 1032 u64 offset; 1033 1034 n_insn = annotation__count_insn(notes, start, end); 1035 if (n_insn && ch->num && ch->cycles) { 1036 float ipc = n_insn / ((double)ch->cycles / (double)ch->num); 1037 1038 /* Hide data when there are too many overlaps. */ 1039 if (ch->reset >= 0x7fff) 1040 return; 1041 1042 for (offset = start; offset <= end; offset++) { 1043 struct annotation_line *al = notes->offsets[offset]; 1044 1045 if (al && al->ipc == 0.0) { 1046 al->ipc = ipc; 1047 cover_insn++; 1048 } 1049 } 1050 1051 if (cover_insn) { 1052 notes->hit_cycles += ch->cycles; 1053 notes->hit_insn += n_insn * ch->num; 1054 notes->cover_insn += cover_insn; 1055 } 1056 } 1057 } 1058 1059 void annotation__compute_ipc(struct annotation *notes, size_t size) 1060 { 1061 s64 offset; 1062 1063 if (!notes->src || !notes->src->cycles_hist) 1064 return; 1065 1066 notes->total_insn = annotation__count_insn(notes, 0, size - 1); 1067 notes->hit_cycles = 0; 1068 notes->hit_insn = 0; 1069 notes->cover_insn = 0; 1070 1071 pthread_mutex_lock(¬es->lock); 1072 for (offset = size - 1; offset >= 0; --offset) { 1073 struct cyc_hist *ch; 1074 1075 ch = ¬es->src->cycles_hist[offset]; 1076 if (ch && ch->cycles) { 1077 struct annotation_line *al; 1078 1079 if (ch->have_start) 1080 annotation__count_and_fill(notes, ch->start, offset, ch); 1081 al = notes->offsets[offset]; 1082 if (al && ch->num_aggr) { 1083 al->cycles = ch->cycles_aggr / ch->num_aggr; 1084 al->cycles_max = ch->cycles_max; 1085 al->cycles_min = ch->cycles_min; 1086 } 1087 notes->have_cycles = true; 1088 } 1089 } 1090 pthread_mutex_unlock(¬es->lock); 1091 } 1092 1093 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample, 1094 struct evsel *evsel) 1095 { 1096 return symbol__inc_addr_samples(&ams->ms, evsel, ams->al_addr, sample); 1097 } 1098 1099 int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample, 1100 struct evsel *evsel, u64 ip) 1101 { 1102 return symbol__inc_addr_samples(&he->ms, evsel, ip, sample); 1103 } 1104 1105 static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, struct map_symbol *ms) 1106 { 1107 dl->ins.ops = ins__find(arch, dl->ins.name); 1108 1109 if (!dl->ins.ops) 1110 return; 1111 1112 if (dl->ins.ops->parse && dl->ins.ops->parse(arch, &dl->ops, ms) < 0) 1113 dl->ins.ops = NULL; 1114 } 1115 1116 static int disasm_line__parse(char *line, const char **namep, char **rawp) 1117 { 1118 char tmp, *name = skip_spaces(line); 1119 1120 if (name[0] == '\0') 1121 return -1; 1122 1123 *rawp = name + 1; 1124 1125 while ((*rawp)[0] != '\0' && !isspace((*rawp)[0])) 1126 ++*rawp; 1127 1128 tmp = (*rawp)[0]; 1129 (*rawp)[0] = '\0'; 1130 *namep = strdup(name); 1131 1132 if (*namep == NULL) 1133 goto out; 1134 1135 (*rawp)[0] = tmp; 1136 *rawp = strim(*rawp); 1137 1138 return 0; 1139 1140 out: 1141 return -1; 1142 } 1143 1144 struct annotate_args { 1145 struct arch *arch; 1146 struct map_symbol ms; 1147 struct evsel *evsel; 1148 struct annotation_options *options; 1149 s64 offset; 1150 char *line; 1151 int line_nr; 1152 }; 1153 1154 static void annotation_line__init(struct annotation_line *al, 1155 struct annotate_args *args, 1156 int nr) 1157 { 1158 al->offset = args->offset; 1159 al->line = strdup(args->line); 1160 al->line_nr = args->line_nr; 1161 al->data_nr = nr; 1162 } 1163 1164 static void annotation_line__exit(struct annotation_line *al) 1165 { 1166 free_srcline(al->path); 1167 zfree(&al->line); 1168 } 1169 1170 static size_t disasm_line_size(int nr) 1171 { 1172 struct annotation_line *al; 1173 1174 return (sizeof(struct disasm_line) + (sizeof(al->data[0]) * nr)); 1175 } 1176 1177 /* 1178 * Allocating the disasm annotation line data with 1179 * following structure: 1180 * 1181 * ------------------------------------------- 1182 * struct disasm_line | struct annotation_line 1183 * ------------------------------------------- 1184 * 1185 * We have 'struct annotation_line' member as last member 1186 * of 'struct disasm_line' to have an easy access. 1187 */ 1188 static struct disasm_line *disasm_line__new(struct annotate_args *args) 1189 { 1190 struct disasm_line *dl = NULL; 1191 int nr = 1; 1192 1193 if (evsel__is_group_event(args->evsel)) 1194 nr = args->evsel->core.nr_members; 1195 1196 dl = zalloc(disasm_line_size(nr)); 1197 if (!dl) 1198 return NULL; 1199 1200 annotation_line__init(&dl->al, args, nr); 1201 if (dl->al.line == NULL) 1202 goto out_delete; 1203 1204 if (args->offset != -1) { 1205 if (disasm_line__parse(dl->al.line, &dl->ins.name, &dl->ops.raw) < 0) 1206 goto out_free_line; 1207 1208 disasm_line__init_ins(dl, args->arch, &args->ms); 1209 } 1210 1211 return dl; 1212 1213 out_free_line: 1214 zfree(&dl->al.line); 1215 out_delete: 1216 free(dl); 1217 return NULL; 1218 } 1219 1220 void disasm_line__free(struct disasm_line *dl) 1221 { 1222 if (dl->ins.ops && dl->ins.ops->free) 1223 dl->ins.ops->free(&dl->ops); 1224 else 1225 ins__delete(&dl->ops); 1226 zfree(&dl->ins.name); 1227 annotation_line__exit(&dl->al); 1228 free(dl); 1229 } 1230 1231 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw, int max_ins_name) 1232 { 1233 if (raw || !dl->ins.ops) 1234 return scnprintf(bf, size, "%-*s %s", max_ins_name, dl->ins.name, dl->ops.raw); 1235 1236 return ins__scnprintf(&dl->ins, bf, size, &dl->ops, max_ins_name); 1237 } 1238 1239 static void annotation_line__add(struct annotation_line *al, struct list_head *head) 1240 { 1241 list_add_tail(&al->node, head); 1242 } 1243 1244 struct annotation_line * 1245 annotation_line__next(struct annotation_line *pos, struct list_head *head) 1246 { 1247 list_for_each_entry_continue(pos, head, node) 1248 if (pos->offset >= 0) 1249 return pos; 1250 1251 return NULL; 1252 } 1253 1254 static const char *annotate__address_color(struct block_range *br) 1255 { 1256 double cov = block_range__coverage(br); 1257 1258 if (cov >= 0) { 1259 /* mark red for >75% coverage */ 1260 if (cov > 0.75) 1261 return PERF_COLOR_RED; 1262 1263 /* mark dull for <1% coverage */ 1264 if (cov < 0.01) 1265 return PERF_COLOR_NORMAL; 1266 } 1267 1268 return PERF_COLOR_MAGENTA; 1269 } 1270 1271 static const char *annotate__asm_color(struct block_range *br) 1272 { 1273 double cov = block_range__coverage(br); 1274 1275 if (cov >= 0) { 1276 /* mark dull for <1% coverage */ 1277 if (cov < 0.01) 1278 return PERF_COLOR_NORMAL; 1279 } 1280 1281 return PERF_COLOR_BLUE; 1282 } 1283 1284 static void annotate__branch_printf(struct block_range *br, u64 addr) 1285 { 1286 bool emit_comment = true; 1287 1288 if (!br) 1289 return; 1290 1291 #if 1 1292 if (br->is_target && br->start == addr) { 1293 struct block_range *branch = br; 1294 double p; 1295 1296 /* 1297 * Find matching branch to our target. 1298 */ 1299 while (!branch->is_branch) 1300 branch = block_range__next(branch); 1301 1302 p = 100 *(double)br->entry / branch->coverage; 1303 1304 if (p > 0.1) { 1305 if (emit_comment) { 1306 emit_comment = false; 1307 printf("\t#"); 1308 } 1309 1310 /* 1311 * The percentage of coverage joined at this target in relation 1312 * to the next branch. 1313 */ 1314 printf(" +%.2f%%", p); 1315 } 1316 } 1317 #endif 1318 if (br->is_branch && br->end == addr) { 1319 double p = 100*(double)br->taken / br->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 leaving at this branch, and 1329 * its prediction ratio. 1330 */ 1331 printf(" -%.2f%% (p:%.2f%%)", p, 100*(double)br->pred / br->taken); 1332 } 1333 } 1334 } 1335 1336 static int disasm_line__print(struct disasm_line *dl, u64 start, int addr_fmt_width) 1337 { 1338 s64 offset = dl->al.offset; 1339 const u64 addr = start + offset; 1340 struct block_range *br; 1341 1342 br = block_range__find(addr); 1343 color_fprintf(stdout, annotate__address_color(br), " %*" PRIx64 ":", addr_fmt_width, addr); 1344 color_fprintf(stdout, annotate__asm_color(br), "%s", dl->al.line); 1345 annotate__branch_printf(br, addr); 1346 return 0; 1347 } 1348 1349 static int 1350 annotation_line__print(struct annotation_line *al, struct symbol *sym, u64 start, 1351 struct evsel *evsel, u64 len, int min_pcnt, int printed, 1352 int max_lines, struct annotation_line *queue, int addr_fmt_width, 1353 int percent_type) 1354 { 1355 struct disasm_line *dl = container_of(al, struct disasm_line, al); 1356 static const char *prev_line; 1357 static const char *prev_color; 1358 1359 if (al->offset != -1) { 1360 double max_percent = 0.0; 1361 int i, nr_percent = 1; 1362 const char *color; 1363 struct annotation *notes = symbol__annotation(sym); 1364 1365 for (i = 0; i < al->data_nr; i++) { 1366 double percent; 1367 1368 percent = annotation_data__percent(&al->data[i], 1369 percent_type); 1370 1371 if (percent > max_percent) 1372 max_percent = percent; 1373 } 1374 1375 if (al->data_nr > nr_percent) 1376 nr_percent = al->data_nr; 1377 1378 if (max_percent < min_pcnt) 1379 return -1; 1380 1381 if (max_lines && printed >= max_lines) 1382 return 1; 1383 1384 if (queue != NULL) { 1385 list_for_each_entry_from(queue, ¬es->src->source, node) { 1386 if (queue == al) 1387 break; 1388 annotation_line__print(queue, sym, start, evsel, len, 1389 0, 0, 1, NULL, addr_fmt_width, 1390 percent_type); 1391 } 1392 } 1393 1394 color = get_percent_color(max_percent); 1395 1396 /* 1397 * Also color the filename and line if needed, with 1398 * the same color than the percentage. Don't print it 1399 * twice for close colored addr with the same filename:line 1400 */ 1401 if (al->path) { 1402 if (!prev_line || strcmp(prev_line, al->path) 1403 || color != prev_color) { 1404 color_fprintf(stdout, color, " %s", al->path); 1405 prev_line = al->path; 1406 prev_color = color; 1407 } 1408 } 1409 1410 for (i = 0; i < nr_percent; i++) { 1411 struct annotation_data *data = &al->data[i]; 1412 double percent; 1413 1414 percent = annotation_data__percent(data, percent_type); 1415 color = get_percent_color(percent); 1416 1417 if (symbol_conf.show_total_period) 1418 color_fprintf(stdout, color, " %11" PRIu64, 1419 data->he.period); 1420 else if (symbol_conf.show_nr_samples) 1421 color_fprintf(stdout, color, " %7" PRIu64, 1422 data->he.nr_samples); 1423 else 1424 color_fprintf(stdout, color, " %7.2f", percent); 1425 } 1426 1427 printf(" : "); 1428 1429 disasm_line__print(dl, start, addr_fmt_width); 1430 printf("\n"); 1431 } else if (max_lines && printed >= max_lines) 1432 return 1; 1433 else { 1434 int width = symbol_conf.show_total_period ? 12 : 8; 1435 1436 if (queue) 1437 return -1; 1438 1439 if (evsel__is_group_event(evsel)) 1440 width *= evsel->core.nr_members; 1441 1442 if (!*al->line) 1443 printf(" %*s:\n", width, " "); 1444 else 1445 printf(" %*s: %*s %s\n", width, " ", addr_fmt_width, " ", al->line); 1446 } 1447 1448 return 0; 1449 } 1450 1451 /* 1452 * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw) 1453 * which looks like following 1454 * 1455 * 0000000000415500 <_init>: 1456 * 415500: sub $0x8,%rsp 1457 * 415504: mov 0x2f5ad5(%rip),%rax # 70afe0 <_DYNAMIC+0x2f8> 1458 * 41550b: test %rax,%rax 1459 * 41550e: je 415515 <_init+0x15> 1460 * 415510: callq 416e70 <__gmon_start__@plt> 1461 * 415515: add $0x8,%rsp 1462 * 415519: retq 1463 * 1464 * it will be parsed and saved into struct disasm_line as 1465 * <offset> <name> <ops.raw> 1466 * 1467 * The offset will be a relative offset from the start of the symbol and -1 1468 * means that it's not a disassembly line so should be treated differently. 1469 * The ops.raw part will be parsed further according to type of the instruction. 1470 */ 1471 static int symbol__parse_objdump_line(struct symbol *sym, 1472 struct annotate_args *args, 1473 char *parsed_line, int *line_nr) 1474 { 1475 struct map *map = args->ms.map; 1476 struct annotation *notes = symbol__annotation(sym); 1477 struct disasm_line *dl; 1478 char *tmp; 1479 s64 line_ip, offset = -1; 1480 regmatch_t match[2]; 1481 1482 /* /filename:linenr ? Save line number and ignore. */ 1483 if (regexec(&file_lineno, parsed_line, 2, match, 0) == 0) { 1484 *line_nr = atoi(parsed_line + match[1].rm_so); 1485 return 0; 1486 } 1487 1488 /* Process hex address followed by ':'. */ 1489 line_ip = strtoull(parsed_line, &tmp, 16); 1490 if (parsed_line != tmp && tmp[0] == ':' && tmp[1] != '\0') { 1491 u64 start = map__rip_2objdump(map, sym->start), 1492 end = map__rip_2objdump(map, sym->end); 1493 1494 offset = line_ip - start; 1495 if ((u64)line_ip < start || (u64)line_ip >= end) 1496 offset = -1; 1497 else 1498 parsed_line = tmp + 1; 1499 } 1500 1501 args->offset = offset; 1502 args->line = parsed_line; 1503 args->line_nr = *line_nr; 1504 args->ms.sym = sym; 1505 1506 dl = disasm_line__new(args); 1507 (*line_nr)++; 1508 1509 if (dl == NULL) 1510 return -1; 1511 1512 if (!disasm_line__has_local_offset(dl)) { 1513 dl->ops.target.offset = dl->ops.target.addr - 1514 map__rip_2objdump(map, sym->start); 1515 dl->ops.target.offset_avail = true; 1516 } 1517 1518 /* kcore has no symbols, so add the call target symbol */ 1519 if (dl->ins.ops && ins__is_call(&dl->ins) && !dl->ops.target.sym) { 1520 struct addr_map_symbol target = { 1521 .addr = dl->ops.target.addr, 1522 .ms = { .map = map, }, 1523 }; 1524 1525 if (!maps__find_ams(args->ms.maps, &target) && 1526 target.ms.sym->start == target.al_addr) 1527 dl->ops.target.sym = target.ms.sym; 1528 } 1529 1530 annotation_line__add(&dl->al, ¬es->src->source); 1531 1532 return 0; 1533 } 1534 1535 static __attribute__((constructor)) void symbol__init_regexpr(void) 1536 { 1537 regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED); 1538 } 1539 1540 static void delete_last_nop(struct symbol *sym) 1541 { 1542 struct annotation *notes = symbol__annotation(sym); 1543 struct list_head *list = ¬es->src->source; 1544 struct disasm_line *dl; 1545 1546 while (!list_empty(list)) { 1547 dl = list_entry(list->prev, struct disasm_line, al.node); 1548 1549 if (dl->ins.ops) { 1550 if (dl->ins.ops != &nop_ops) 1551 return; 1552 } else { 1553 if (!strstr(dl->al.line, " nop ") && 1554 !strstr(dl->al.line, " nopl ") && 1555 !strstr(dl->al.line, " nopw ")) 1556 return; 1557 } 1558 1559 list_del_init(&dl->al.node); 1560 disasm_line__free(dl); 1561 } 1562 } 1563 1564 int symbol__strerror_disassemble(struct map_symbol *ms, int errnum, char *buf, size_t buflen) 1565 { 1566 struct dso *dso = ms->map->dso; 1567 1568 BUG_ON(buflen == 0); 1569 1570 if (errnum >= 0) { 1571 str_error_r(errnum, buf, buflen); 1572 return 0; 1573 } 1574 1575 switch (errnum) { 1576 case SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX: { 1577 char bf[SBUILD_ID_SIZE + 15] = " with build id "; 1578 char *build_id_msg = NULL; 1579 1580 if (dso->has_build_id) { 1581 build_id__sprintf(dso->build_id, 1582 sizeof(dso->build_id), bf + 15); 1583 build_id_msg = bf; 1584 } 1585 scnprintf(buf, buflen, 1586 "No vmlinux file%s\nwas found in the path.\n\n" 1587 "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n" 1588 "Please use:\n\n" 1589 " perf buildid-cache -vu vmlinux\n\n" 1590 "or:\n\n" 1591 " --vmlinux vmlinux\n", build_id_msg ?: ""); 1592 } 1593 break; 1594 case SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF: 1595 scnprintf(buf, buflen, "Please link with binutils's libopcode to enable BPF annotation"); 1596 break; 1597 case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP: 1598 scnprintf(buf, buflen, "Problems with arch specific instruction name regular expressions."); 1599 break; 1600 case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING: 1601 scnprintf(buf, buflen, "Problems while parsing the CPUID in the arch specific initialization."); 1602 break; 1603 case SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE: 1604 scnprintf(buf, buflen, "Invalid BPF file: %s.", dso->long_name); 1605 break; 1606 case SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF: 1607 scnprintf(buf, buflen, "The %s BPF file has no BTF section, compile with -g or use pahole -J.", 1608 dso->long_name); 1609 break; 1610 default: 1611 scnprintf(buf, buflen, "Internal error: Invalid %d error code\n", errnum); 1612 break; 1613 } 1614 1615 return 0; 1616 } 1617 1618 static int dso__disassemble_filename(struct dso *dso, char *filename, size_t filename_size) 1619 { 1620 char linkname[PATH_MAX]; 1621 char *build_id_filename; 1622 char *build_id_path = NULL; 1623 char *pos; 1624 int len; 1625 1626 if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && 1627 !dso__is_kcore(dso)) 1628 return SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX; 1629 1630 build_id_filename = dso__build_id_filename(dso, NULL, 0, false); 1631 if (build_id_filename) { 1632 __symbol__join_symfs(filename, filename_size, build_id_filename); 1633 free(build_id_filename); 1634 } else { 1635 if (dso->has_build_id) 1636 return ENOMEM; 1637 goto fallback; 1638 } 1639 1640 build_id_path = strdup(filename); 1641 if (!build_id_path) 1642 return ENOMEM; 1643 1644 /* 1645 * old style build-id cache has name of XX/XXXXXXX.. while 1646 * new style has XX/XXXXXXX../{elf,kallsyms,vdso}. 1647 * extract the build-id part of dirname in the new style only. 1648 */ 1649 pos = strrchr(build_id_path, '/'); 1650 if (pos && strlen(pos) < SBUILD_ID_SIZE - 2) 1651 dirname(build_id_path); 1652 1653 if (dso__is_kcore(dso)) 1654 goto fallback; 1655 1656 len = readlink(build_id_path, linkname, sizeof(linkname) - 1); 1657 if (len < 0) 1658 goto fallback; 1659 1660 linkname[len] = '\0'; 1661 if (strstr(linkname, DSO__NAME_KALLSYMS) || 1662 access(filename, R_OK)) { 1663 fallback: 1664 /* 1665 * If we don't have build-ids or the build-id file isn't in the 1666 * cache, or is just a kallsyms file, well, lets hope that this 1667 * DSO is the same as when 'perf record' ran. 1668 */ 1669 __symbol__join_symfs(filename, filename_size, dso->long_name); 1670 } 1671 1672 free(build_id_path); 1673 return 0; 1674 } 1675 1676 #if defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT) 1677 #define PACKAGE "perf" 1678 #include <bfd.h> 1679 #include <dis-asm.h> 1680 1681 static int symbol__disassemble_bpf(struct symbol *sym, 1682 struct annotate_args *args) 1683 { 1684 struct annotation *notes = symbol__annotation(sym); 1685 struct annotation_options *opts = args->options; 1686 struct bpf_prog_info_linear *info_linear; 1687 struct bpf_prog_linfo *prog_linfo = NULL; 1688 struct bpf_prog_info_node *info_node; 1689 int len = sym->end - sym->start; 1690 disassembler_ftype disassemble; 1691 struct map *map = args->ms.map; 1692 struct disassemble_info info; 1693 struct dso *dso = map->dso; 1694 int pc = 0, count, sub_id; 1695 struct btf *btf = NULL; 1696 char tpath[PATH_MAX]; 1697 size_t buf_size; 1698 int nr_skip = 0; 1699 char *buf; 1700 bfd *bfdf; 1701 int ret; 1702 FILE *s; 1703 1704 if (dso->binary_type != DSO_BINARY_TYPE__BPF_PROG_INFO) 1705 return SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE; 1706 1707 pr_debug("%s: handling sym %s addr %" PRIx64 " len %" PRIx64 "\n", __func__, 1708 sym->name, sym->start, sym->end - sym->start); 1709 1710 memset(tpath, 0, sizeof(tpath)); 1711 perf_exe(tpath, sizeof(tpath)); 1712 1713 bfdf = bfd_openr(tpath, NULL); 1714 assert(bfdf); 1715 assert(bfd_check_format(bfdf, bfd_object)); 1716 1717 s = open_memstream(&buf, &buf_size); 1718 if (!s) { 1719 ret = errno; 1720 goto out; 1721 } 1722 init_disassemble_info(&info, s, 1723 (fprintf_ftype) fprintf); 1724 1725 info.arch = bfd_get_arch(bfdf); 1726 info.mach = bfd_get_mach(bfdf); 1727 1728 info_node = perf_env__find_bpf_prog_info(dso->bpf_prog.env, 1729 dso->bpf_prog.id); 1730 if (!info_node) { 1731 ret = SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF; 1732 goto out; 1733 } 1734 info_linear = info_node->info_linear; 1735 sub_id = dso->bpf_prog.sub_id; 1736 1737 info.buffer = (void *)(uintptr_t)(info_linear->info.jited_prog_insns); 1738 info.buffer_length = info_linear->info.jited_prog_len; 1739 1740 if (info_linear->info.nr_line_info) 1741 prog_linfo = bpf_prog_linfo__new(&info_linear->info); 1742 1743 if (info_linear->info.btf_id) { 1744 struct btf_node *node; 1745 1746 node = perf_env__find_btf(dso->bpf_prog.env, 1747 info_linear->info.btf_id); 1748 if (node) 1749 btf = btf__new((__u8 *)(node->data), 1750 node->data_size); 1751 } 1752 1753 disassemble_init_for_target(&info); 1754 1755 #ifdef DISASM_FOUR_ARGS_SIGNATURE 1756 disassemble = disassembler(info.arch, 1757 bfd_big_endian(bfdf), 1758 info.mach, 1759 bfdf); 1760 #else 1761 disassemble = disassembler(bfdf); 1762 #endif 1763 assert(disassemble); 1764 1765 fflush(s); 1766 do { 1767 const struct bpf_line_info *linfo = NULL; 1768 struct disasm_line *dl; 1769 size_t prev_buf_size; 1770 const char *srcline; 1771 u64 addr; 1772 1773 addr = pc + ((u64 *)(uintptr_t)(info_linear->info.jited_ksyms))[sub_id]; 1774 count = disassemble(pc, &info); 1775 1776 if (prog_linfo) 1777 linfo = bpf_prog_linfo__lfind_addr_func(prog_linfo, 1778 addr, sub_id, 1779 nr_skip); 1780 1781 if (linfo && btf) { 1782 srcline = btf__name_by_offset(btf, linfo->line_off); 1783 nr_skip++; 1784 } else 1785 srcline = NULL; 1786 1787 fprintf(s, "\n"); 1788 prev_buf_size = buf_size; 1789 fflush(s); 1790 1791 if (!opts->hide_src_code && srcline) { 1792 args->offset = -1; 1793 args->line = strdup(srcline); 1794 args->line_nr = 0; 1795 args->ms.sym = sym; 1796 dl = disasm_line__new(args); 1797 if (dl) { 1798 annotation_line__add(&dl->al, 1799 ¬es->src->source); 1800 } 1801 } 1802 1803 args->offset = pc; 1804 args->line = buf + prev_buf_size; 1805 args->line_nr = 0; 1806 args->ms.sym = sym; 1807 dl = disasm_line__new(args); 1808 if (dl) 1809 annotation_line__add(&dl->al, ¬es->src->source); 1810 1811 pc += count; 1812 } while (count > 0 && pc < len); 1813 1814 ret = 0; 1815 out: 1816 free(prog_linfo); 1817 free(btf); 1818 fclose(s); 1819 bfd_close(bfdf); 1820 return ret; 1821 } 1822 #else // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT) 1823 static int symbol__disassemble_bpf(struct symbol *sym __maybe_unused, 1824 struct annotate_args *args __maybe_unused) 1825 { 1826 return SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF; 1827 } 1828 #endif // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT) 1829 1830 static int 1831 symbol__disassemble_bpf_image(struct symbol *sym, 1832 struct annotate_args *args) 1833 { 1834 struct annotation *notes = symbol__annotation(sym); 1835 struct disasm_line *dl; 1836 1837 args->offset = -1; 1838 args->line = strdup("to be implemented"); 1839 args->line_nr = 0; 1840 dl = disasm_line__new(args); 1841 if (dl) 1842 annotation_line__add(&dl->al, ¬es->src->source); 1843 1844 free(args->line); 1845 return 0; 1846 } 1847 1848 /* 1849 * Possibly create a new version of line with tabs expanded. Returns the 1850 * existing or new line, storage is updated if a new line is allocated. If 1851 * allocation fails then NULL is returned. 1852 */ 1853 static char *expand_tabs(char *line, char **storage, size_t *storage_len) 1854 { 1855 size_t i, src, dst, len, new_storage_len, num_tabs; 1856 char *new_line; 1857 size_t line_len = strlen(line); 1858 1859 for (num_tabs = 0, i = 0; i < line_len; i++) 1860 if (line[i] == '\t') 1861 num_tabs++; 1862 1863 if (num_tabs == 0) 1864 return line; 1865 1866 /* 1867 * Space for the line and '\0', less the leading and trailing 1868 * spaces. Each tab may introduce 7 additional spaces. 1869 */ 1870 new_storage_len = line_len + 1 + (num_tabs * 7); 1871 1872 new_line = malloc(new_storage_len); 1873 if (new_line == NULL) { 1874 pr_err("Failure allocating memory for tab expansion\n"); 1875 return NULL; 1876 } 1877 1878 /* 1879 * Copy regions starting at src and expand tabs. If there are two 1880 * adjacent tabs then 'src == i', the memcpy is of size 0 and the spaces 1881 * are inserted. 1882 */ 1883 for (i = 0, src = 0, dst = 0; i < line_len && num_tabs; i++) { 1884 if (line[i] == '\t') { 1885 len = i - src; 1886 memcpy(&new_line[dst], &line[src], len); 1887 dst += len; 1888 new_line[dst++] = ' '; 1889 while (dst % 8 != 0) 1890 new_line[dst++] = ' '; 1891 src = i + 1; 1892 num_tabs--; 1893 } 1894 } 1895 1896 /* Expand the last region. */ 1897 len = line_len - src; 1898 memcpy(&new_line[dst], &line[src], len); 1899 dst += len; 1900 new_line[dst] = '\0'; 1901 1902 free(*storage); 1903 *storage = new_line; 1904 *storage_len = new_storage_len; 1905 return new_line; 1906 1907 } 1908 1909 static int symbol__disassemble(struct symbol *sym, struct annotate_args *args) 1910 { 1911 struct annotation_options *opts = args->options; 1912 struct map *map = args->ms.map; 1913 struct dso *dso = map->dso; 1914 char *command; 1915 FILE *file; 1916 char symfs_filename[PATH_MAX]; 1917 struct kcore_extract kce; 1918 bool delete_extract = false; 1919 bool decomp = false; 1920 int lineno = 0; 1921 int nline; 1922 char *line; 1923 size_t line_len; 1924 const char *objdump_argv[] = { 1925 "/bin/sh", 1926 "-c", 1927 NULL, /* Will be the objdump command to run. */ 1928 "--", 1929 NULL, /* Will be the symfs path. */ 1930 NULL, 1931 }; 1932 struct child_process objdump_process; 1933 int err = dso__disassemble_filename(dso, symfs_filename, sizeof(symfs_filename)); 1934 1935 if (err) 1936 return err; 1937 1938 pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__, 1939 symfs_filename, sym->name, map->unmap_ip(map, sym->start), 1940 map->unmap_ip(map, sym->end)); 1941 1942 pr_debug("annotating [%p] %30s : [%p] %30s\n", 1943 dso, dso->long_name, sym, sym->name); 1944 1945 if (dso->binary_type == DSO_BINARY_TYPE__BPF_PROG_INFO) { 1946 return symbol__disassemble_bpf(sym, args); 1947 } else if (dso->binary_type == DSO_BINARY_TYPE__BPF_IMAGE) { 1948 return symbol__disassemble_bpf_image(sym, args); 1949 } else if (dso__is_kcore(dso)) { 1950 kce.kcore_filename = symfs_filename; 1951 kce.addr = map__rip_2objdump(map, sym->start); 1952 kce.offs = sym->start; 1953 kce.len = sym->end - sym->start; 1954 if (!kcore_extract__create(&kce)) { 1955 delete_extract = true; 1956 strlcpy(symfs_filename, kce.extract_filename, 1957 sizeof(symfs_filename)); 1958 } 1959 } else if (dso__needs_decompress(dso)) { 1960 char tmp[KMOD_DECOMP_LEN]; 1961 1962 if (dso__decompress_kmodule_path(dso, symfs_filename, 1963 tmp, sizeof(tmp)) < 0) 1964 return -1; 1965 1966 decomp = true; 1967 strcpy(symfs_filename, tmp); 1968 } 1969 1970 err = asprintf(&command, 1971 "%s %s%s --start-address=0x%016" PRIx64 1972 " --stop-address=0x%016" PRIx64 1973 " -l -d %s %s %s %c%s%c %s%s -C \"$1\"", 1974 opts->objdump_path ?: "objdump", 1975 opts->disassembler_style ? "-M " : "", 1976 opts->disassembler_style ?: "", 1977 map__rip_2objdump(map, sym->start), 1978 map__rip_2objdump(map, sym->end), 1979 opts->show_asm_raw ? "" : "--no-show-raw-insn", 1980 opts->annotate_src ? "-S" : "", 1981 opts->prefix ? "--prefix " : "", 1982 opts->prefix ? '"' : ' ', 1983 opts->prefix ?: "", 1984 opts->prefix ? '"' : ' ', 1985 opts->prefix_strip ? "--prefix-strip=" : "", 1986 opts->prefix_strip ?: ""); 1987 1988 if (err < 0) { 1989 pr_err("Failure allocating memory for the command to run\n"); 1990 goto out_remove_tmp; 1991 } 1992 1993 pr_debug("Executing: %s\n", command); 1994 1995 objdump_argv[2] = command; 1996 objdump_argv[4] = symfs_filename; 1997 1998 /* Create a pipe to read from for stdout */ 1999 memset(&objdump_process, 0, sizeof(objdump_process)); 2000 objdump_process.argv = objdump_argv; 2001 objdump_process.out = -1; 2002 if (start_command(&objdump_process)) { 2003 pr_err("Failure starting to run %s\n", command); 2004 err = -1; 2005 goto out_free_command; 2006 } 2007 2008 file = fdopen(objdump_process.out, "r"); 2009 if (!file) { 2010 pr_err("Failure creating FILE stream for %s\n", command); 2011 /* 2012 * If we were using debug info should retry with 2013 * original binary. 2014 */ 2015 err = -1; 2016 goto out_close_stdout; 2017 } 2018 2019 /* Storage for getline. */ 2020 line = NULL; 2021 line_len = 0; 2022 2023 nline = 0; 2024 while (!feof(file)) { 2025 const char *match; 2026 char *expanded_line; 2027 2028 if (getline(&line, &line_len, file) < 0 || !line) 2029 break; 2030 2031 /* Skip lines containing "filename:" */ 2032 match = strstr(line, symfs_filename); 2033 if (match && match[strlen(symfs_filename)] == ':') 2034 continue; 2035 2036 expanded_line = strim(line); 2037 expanded_line = expand_tabs(expanded_line, &line, &line_len); 2038 if (!expanded_line) 2039 break; 2040 2041 /* 2042 * The source code line number (lineno) needs to be kept in 2043 * across calls to symbol__parse_objdump_line(), so that it 2044 * can associate it with the instructions till the next one. 2045 * See disasm_line__new() and struct disasm_line::line_nr. 2046 */ 2047 if (symbol__parse_objdump_line(sym, args, expanded_line, 2048 &lineno) < 0) 2049 break; 2050 nline++; 2051 } 2052 free(line); 2053 2054 err = finish_command(&objdump_process); 2055 if (err) 2056 pr_err("Error running %s\n", command); 2057 2058 if (nline == 0) { 2059 err = -1; 2060 pr_err("No output from %s\n", command); 2061 } 2062 2063 /* 2064 * kallsyms does not have symbol sizes so there may a nop at the end. 2065 * Remove it. 2066 */ 2067 if (dso__is_kcore(dso)) 2068 delete_last_nop(sym); 2069 2070 fclose(file); 2071 2072 out_close_stdout: 2073 close(objdump_process.out); 2074 2075 out_free_command: 2076 free(command); 2077 2078 out_remove_tmp: 2079 if (decomp) 2080 unlink(symfs_filename); 2081 2082 if (delete_extract) 2083 kcore_extract__delete(&kce); 2084 2085 return err; 2086 } 2087 2088 static void calc_percent(struct sym_hist *sym_hist, 2089 struct hists *hists, 2090 struct annotation_data *data, 2091 s64 offset, s64 end) 2092 { 2093 unsigned int hits = 0; 2094 u64 period = 0; 2095 2096 while (offset < end) { 2097 hits += sym_hist->addr[offset].nr_samples; 2098 period += sym_hist->addr[offset].period; 2099 ++offset; 2100 } 2101 2102 if (sym_hist->nr_samples) { 2103 data->he.period = period; 2104 data->he.nr_samples = hits; 2105 data->percent[PERCENT_HITS_LOCAL] = 100.0 * hits / sym_hist->nr_samples; 2106 } 2107 2108 if (hists->stats.nr_non_filtered_samples) 2109 data->percent[PERCENT_HITS_GLOBAL] = 100.0 * hits / hists->stats.nr_non_filtered_samples; 2110 2111 if (sym_hist->period) 2112 data->percent[PERCENT_PERIOD_LOCAL] = 100.0 * period / sym_hist->period; 2113 2114 if (hists->stats.total_period) 2115 data->percent[PERCENT_PERIOD_GLOBAL] = 100.0 * period / hists->stats.total_period; 2116 } 2117 2118 static void annotation__calc_percent(struct annotation *notes, 2119 struct evsel *leader, s64 len) 2120 { 2121 struct annotation_line *al, *next; 2122 struct evsel *evsel; 2123 2124 list_for_each_entry(al, ¬es->src->source, node) { 2125 s64 end; 2126 int i = 0; 2127 2128 if (al->offset == -1) 2129 continue; 2130 2131 next = annotation_line__next(al, ¬es->src->source); 2132 end = next ? next->offset : len; 2133 2134 for_each_group_evsel(evsel, leader) { 2135 struct hists *hists = evsel__hists(evsel); 2136 struct annotation_data *data; 2137 struct sym_hist *sym_hist; 2138 2139 BUG_ON(i >= al->data_nr); 2140 2141 sym_hist = annotation__histogram(notes, evsel->idx); 2142 data = &al->data[i++]; 2143 2144 calc_percent(sym_hist, hists, data, al->offset, end); 2145 } 2146 } 2147 } 2148 2149 void symbol__calc_percent(struct symbol *sym, struct evsel *evsel) 2150 { 2151 struct annotation *notes = symbol__annotation(sym); 2152 2153 annotation__calc_percent(notes, evsel, symbol__size(sym)); 2154 } 2155 2156 int symbol__annotate(struct map_symbol *ms, struct evsel *evsel, 2157 struct annotation_options *options, struct arch **parch) 2158 { 2159 struct symbol *sym = ms->sym; 2160 struct annotation *notes = symbol__annotation(sym); 2161 struct annotate_args args = { 2162 .evsel = evsel, 2163 .options = options, 2164 }; 2165 struct perf_env *env = evsel__env(evsel); 2166 const char *arch_name = perf_env__arch(env); 2167 struct arch *arch; 2168 int err; 2169 2170 if (!arch_name) 2171 return errno; 2172 2173 args.arch = arch = arch__find(arch_name); 2174 if (arch == NULL) 2175 return ENOTSUP; 2176 2177 if (parch) 2178 *parch = arch; 2179 2180 if (arch->init) { 2181 err = arch->init(arch, env ? env->cpuid : NULL); 2182 if (err) { 2183 pr_err("%s: failed to initialize %s arch priv area\n", __func__, arch->name); 2184 return err; 2185 } 2186 } 2187 2188 args.ms = *ms; 2189 notes->start = map__rip_2objdump(ms->map, sym->start); 2190 2191 return symbol__disassemble(sym, &args); 2192 } 2193 2194 static void insert_source_line(struct rb_root *root, struct annotation_line *al, 2195 struct annotation_options *opts) 2196 { 2197 struct annotation_line *iter; 2198 struct rb_node **p = &root->rb_node; 2199 struct rb_node *parent = NULL; 2200 int i, ret; 2201 2202 while (*p != NULL) { 2203 parent = *p; 2204 iter = rb_entry(parent, struct annotation_line, rb_node); 2205 2206 ret = strcmp(iter->path, al->path); 2207 if (ret == 0) { 2208 for (i = 0; i < al->data_nr; i++) { 2209 iter->data[i].percent_sum += annotation_data__percent(&al->data[i], 2210 opts->percent_type); 2211 } 2212 return; 2213 } 2214 2215 if (ret < 0) 2216 p = &(*p)->rb_left; 2217 else 2218 p = &(*p)->rb_right; 2219 } 2220 2221 for (i = 0; i < al->data_nr; i++) { 2222 al->data[i].percent_sum = annotation_data__percent(&al->data[i], 2223 opts->percent_type); 2224 } 2225 2226 rb_link_node(&al->rb_node, parent, p); 2227 rb_insert_color(&al->rb_node, root); 2228 } 2229 2230 static int cmp_source_line(struct annotation_line *a, struct annotation_line *b) 2231 { 2232 int i; 2233 2234 for (i = 0; i < a->data_nr; i++) { 2235 if (a->data[i].percent_sum == b->data[i].percent_sum) 2236 continue; 2237 return a->data[i].percent_sum > b->data[i].percent_sum; 2238 } 2239 2240 return 0; 2241 } 2242 2243 static void __resort_source_line(struct rb_root *root, struct annotation_line *al) 2244 { 2245 struct annotation_line *iter; 2246 struct rb_node **p = &root->rb_node; 2247 struct rb_node *parent = NULL; 2248 2249 while (*p != NULL) { 2250 parent = *p; 2251 iter = rb_entry(parent, struct annotation_line, rb_node); 2252 2253 if (cmp_source_line(al, iter)) 2254 p = &(*p)->rb_left; 2255 else 2256 p = &(*p)->rb_right; 2257 } 2258 2259 rb_link_node(&al->rb_node, parent, p); 2260 rb_insert_color(&al->rb_node, root); 2261 } 2262 2263 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root) 2264 { 2265 struct annotation_line *al; 2266 struct rb_node *node; 2267 2268 node = rb_first(src_root); 2269 while (node) { 2270 struct rb_node *next; 2271 2272 al = rb_entry(node, struct annotation_line, rb_node); 2273 next = rb_next(node); 2274 rb_erase(node, src_root); 2275 2276 __resort_source_line(dest_root, al); 2277 node = next; 2278 } 2279 } 2280 2281 static void print_summary(struct rb_root *root, const char *filename) 2282 { 2283 struct annotation_line *al; 2284 struct rb_node *node; 2285 2286 printf("\nSorted summary for file %s\n", filename); 2287 printf("----------------------------------------------\n\n"); 2288 2289 if (RB_EMPTY_ROOT(root)) { 2290 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN); 2291 return; 2292 } 2293 2294 node = rb_first(root); 2295 while (node) { 2296 double percent, percent_max = 0.0; 2297 const char *color; 2298 char *path; 2299 int i; 2300 2301 al = rb_entry(node, struct annotation_line, rb_node); 2302 for (i = 0; i < al->data_nr; i++) { 2303 percent = al->data[i].percent_sum; 2304 color = get_percent_color(percent); 2305 color_fprintf(stdout, color, " %7.2f", percent); 2306 2307 if (percent > percent_max) 2308 percent_max = percent; 2309 } 2310 2311 path = al->path; 2312 color = get_percent_color(percent_max); 2313 color_fprintf(stdout, color, " %s\n", path); 2314 2315 node = rb_next(node); 2316 } 2317 } 2318 2319 static void symbol__annotate_hits(struct symbol *sym, struct evsel *evsel) 2320 { 2321 struct annotation *notes = symbol__annotation(sym); 2322 struct sym_hist *h = annotation__histogram(notes, evsel->idx); 2323 u64 len = symbol__size(sym), offset; 2324 2325 for (offset = 0; offset < len; ++offset) 2326 if (h->addr[offset].nr_samples != 0) 2327 printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2, 2328 sym->start + offset, h->addr[offset].nr_samples); 2329 printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->nr_samples", h->nr_samples); 2330 } 2331 2332 static int annotated_source__addr_fmt_width(struct list_head *lines, u64 start) 2333 { 2334 char bf[32]; 2335 struct annotation_line *line; 2336 2337 list_for_each_entry_reverse(line, lines, node) { 2338 if (line->offset != -1) 2339 return scnprintf(bf, sizeof(bf), "%" PRIx64, start + line->offset); 2340 } 2341 2342 return 0; 2343 } 2344 2345 int symbol__annotate_printf(struct map_symbol *ms, struct evsel *evsel, 2346 struct annotation_options *opts) 2347 { 2348 struct map *map = ms->map; 2349 struct symbol *sym = ms->sym; 2350 struct dso *dso = map->dso; 2351 char *filename; 2352 const char *d_filename; 2353 const char *evsel_name = evsel__name(evsel); 2354 struct annotation *notes = symbol__annotation(sym); 2355 struct sym_hist *h = annotation__histogram(notes, evsel->idx); 2356 struct annotation_line *pos, *queue = NULL; 2357 u64 start = map__rip_2objdump(map, sym->start); 2358 int printed = 2, queue_len = 0, addr_fmt_width; 2359 int more = 0; 2360 bool context = opts->context; 2361 u64 len; 2362 int width = symbol_conf.show_total_period ? 12 : 8; 2363 int graph_dotted_len; 2364 char buf[512]; 2365 2366 filename = strdup(dso->long_name); 2367 if (!filename) 2368 return -ENOMEM; 2369 2370 if (opts->full_path) 2371 d_filename = filename; 2372 else 2373 d_filename = basename(filename); 2374 2375 len = symbol__size(sym); 2376 2377 if (evsel__is_group_event(evsel)) { 2378 width *= evsel->core.nr_members; 2379 evsel__group_desc(evsel, buf, sizeof(buf)); 2380 evsel_name = buf; 2381 } 2382 2383 graph_dotted_len = printf(" %-*.*s| Source code & Disassembly of %s for %s (%" PRIu64 " samples, " 2384 "percent: %s)\n", 2385 width, width, symbol_conf.show_total_period ? "Period" : 2386 symbol_conf.show_nr_samples ? "Samples" : "Percent", 2387 d_filename, evsel_name, h->nr_samples, 2388 percent_type_str(opts->percent_type)); 2389 2390 printf("%-*.*s----\n", 2391 graph_dotted_len, graph_dotted_len, graph_dotted_line); 2392 2393 if (verbose > 0) 2394 symbol__annotate_hits(sym, evsel); 2395 2396 addr_fmt_width = annotated_source__addr_fmt_width(¬es->src->source, start); 2397 2398 list_for_each_entry(pos, ¬es->src->source, node) { 2399 int err; 2400 2401 if (context && queue == NULL) { 2402 queue = pos; 2403 queue_len = 0; 2404 } 2405 2406 err = annotation_line__print(pos, sym, start, evsel, len, 2407 opts->min_pcnt, printed, opts->max_lines, 2408 queue, addr_fmt_width, opts->percent_type); 2409 2410 switch (err) { 2411 case 0: 2412 ++printed; 2413 if (context) { 2414 printed += queue_len; 2415 queue = NULL; 2416 queue_len = 0; 2417 } 2418 break; 2419 case 1: 2420 /* filtered by max_lines */ 2421 ++more; 2422 break; 2423 case -1: 2424 default: 2425 /* 2426 * Filtered by min_pcnt or non IP lines when 2427 * context != 0 2428 */ 2429 if (!context) 2430 break; 2431 if (queue_len == context) 2432 queue = list_entry(queue->node.next, typeof(*queue), node); 2433 else 2434 ++queue_len; 2435 break; 2436 } 2437 } 2438 2439 free(filename); 2440 2441 return more; 2442 } 2443 2444 static void FILE__set_percent_color(void *fp __maybe_unused, 2445 double percent __maybe_unused, 2446 bool current __maybe_unused) 2447 { 2448 } 2449 2450 static int FILE__set_jumps_percent_color(void *fp __maybe_unused, 2451 int nr __maybe_unused, bool current __maybe_unused) 2452 { 2453 return 0; 2454 } 2455 2456 static int FILE__set_color(void *fp __maybe_unused, int color __maybe_unused) 2457 { 2458 return 0; 2459 } 2460 2461 static void FILE__printf(void *fp, const char *fmt, ...) 2462 { 2463 va_list args; 2464 2465 va_start(args, fmt); 2466 vfprintf(fp, fmt, args); 2467 va_end(args); 2468 } 2469 2470 static void FILE__write_graph(void *fp, int graph) 2471 { 2472 const char *s; 2473 switch (graph) { 2474 2475 case DARROW_CHAR: s = "↓"; break; 2476 case UARROW_CHAR: s = "↑"; break; 2477 case LARROW_CHAR: s = "←"; break; 2478 case RARROW_CHAR: s = "→"; break; 2479 default: s = "?"; break; 2480 } 2481 2482 fputs(s, fp); 2483 } 2484 2485 static int symbol__annotate_fprintf2(struct symbol *sym, FILE *fp, 2486 struct annotation_options *opts) 2487 { 2488 struct annotation *notes = symbol__annotation(sym); 2489 struct annotation_write_ops wops = { 2490 .first_line = true, 2491 .obj = fp, 2492 .set_color = FILE__set_color, 2493 .set_percent_color = FILE__set_percent_color, 2494 .set_jumps_percent_color = FILE__set_jumps_percent_color, 2495 .printf = FILE__printf, 2496 .write_graph = FILE__write_graph, 2497 }; 2498 struct annotation_line *al; 2499 2500 list_for_each_entry(al, ¬es->src->source, node) { 2501 if (annotation_line__filter(al, notes)) 2502 continue; 2503 annotation_line__write(al, notes, &wops, opts); 2504 fputc('\n', fp); 2505 wops.first_line = false; 2506 } 2507 2508 return 0; 2509 } 2510 2511 int map_symbol__annotation_dump(struct map_symbol *ms, struct evsel *evsel, 2512 struct annotation_options *opts) 2513 { 2514 const char *ev_name = evsel__name(evsel); 2515 char buf[1024]; 2516 char *filename; 2517 int err = -1; 2518 FILE *fp; 2519 2520 if (asprintf(&filename, "%s.annotation", ms->sym->name) < 0) 2521 return -1; 2522 2523 fp = fopen(filename, "w"); 2524 if (fp == NULL) 2525 goto out_free_filename; 2526 2527 if (evsel__is_group_event(evsel)) { 2528 evsel__group_desc(evsel, buf, sizeof(buf)); 2529 ev_name = buf; 2530 } 2531 2532 fprintf(fp, "%s() %s\nEvent: %s\n\n", 2533 ms->sym->name, ms->map->dso->long_name, ev_name); 2534 symbol__annotate_fprintf2(ms->sym, fp, opts); 2535 2536 fclose(fp); 2537 err = 0; 2538 out_free_filename: 2539 free(filename); 2540 return err; 2541 } 2542 2543 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx) 2544 { 2545 struct annotation *notes = symbol__annotation(sym); 2546 struct sym_hist *h = annotation__histogram(notes, evidx); 2547 2548 memset(h, 0, notes->src->sizeof_sym_hist); 2549 } 2550 2551 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx) 2552 { 2553 struct annotation *notes = symbol__annotation(sym); 2554 struct sym_hist *h = annotation__histogram(notes, evidx); 2555 int len = symbol__size(sym), offset; 2556 2557 h->nr_samples = 0; 2558 for (offset = 0; offset < len; ++offset) { 2559 h->addr[offset].nr_samples = h->addr[offset].nr_samples * 7 / 8; 2560 h->nr_samples += h->addr[offset].nr_samples; 2561 } 2562 } 2563 2564 void annotated_source__purge(struct annotated_source *as) 2565 { 2566 struct annotation_line *al, *n; 2567 2568 list_for_each_entry_safe(al, n, &as->source, node) { 2569 list_del_init(&al->node); 2570 disasm_line__free(disasm_line(al)); 2571 } 2572 } 2573 2574 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp) 2575 { 2576 size_t printed; 2577 2578 if (dl->al.offset == -1) 2579 return fprintf(fp, "%s\n", dl->al.line); 2580 2581 printed = fprintf(fp, "%#" PRIx64 " %s", dl->al.offset, dl->ins.name); 2582 2583 if (dl->ops.raw[0] != '\0') { 2584 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ", 2585 dl->ops.raw); 2586 } 2587 2588 return printed + fprintf(fp, "\n"); 2589 } 2590 2591 size_t disasm__fprintf(struct list_head *head, FILE *fp) 2592 { 2593 struct disasm_line *pos; 2594 size_t printed = 0; 2595 2596 list_for_each_entry(pos, head, al.node) 2597 printed += disasm_line__fprintf(pos, fp); 2598 2599 return printed; 2600 } 2601 2602 bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym) 2603 { 2604 if (!dl || !dl->ins.ops || !ins__is_jump(&dl->ins) || 2605 !disasm_line__has_local_offset(dl) || dl->ops.target.offset < 0 || 2606 dl->ops.target.offset >= (s64)symbol__size(sym)) 2607 return false; 2608 2609 return true; 2610 } 2611 2612 void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym) 2613 { 2614 u64 offset, size = symbol__size(sym); 2615 2616 /* PLT symbols contain external offsets */ 2617 if (strstr(sym->name, "@plt")) 2618 return; 2619 2620 for (offset = 0; offset < size; ++offset) { 2621 struct annotation_line *al = notes->offsets[offset]; 2622 struct disasm_line *dl; 2623 2624 dl = disasm_line(al); 2625 2626 if (!disasm_line__is_valid_local_jump(dl, sym)) 2627 continue; 2628 2629 al = notes->offsets[dl->ops.target.offset]; 2630 2631 /* 2632 * FIXME: Oops, no jump target? Buggy disassembler? Or do we 2633 * have to adjust to the previous offset? 2634 */ 2635 if (al == NULL) 2636 continue; 2637 2638 if (++al->jump_sources > notes->max_jump_sources) 2639 notes->max_jump_sources = al->jump_sources; 2640 } 2641 } 2642 2643 void annotation__set_offsets(struct annotation *notes, s64 size) 2644 { 2645 struct annotation_line *al; 2646 2647 notes->max_line_len = 0; 2648 notes->nr_entries = 0; 2649 notes->nr_asm_entries = 0; 2650 2651 list_for_each_entry(al, ¬es->src->source, node) { 2652 size_t line_len = strlen(al->line); 2653 2654 if (notes->max_line_len < line_len) 2655 notes->max_line_len = line_len; 2656 al->idx = notes->nr_entries++; 2657 if (al->offset != -1) { 2658 al->idx_asm = notes->nr_asm_entries++; 2659 /* 2660 * FIXME: short term bandaid to cope with assembly 2661 * routines that comes with labels in the same column 2662 * as the address in objdump, sigh. 2663 * 2664 * E.g. copy_user_generic_unrolled 2665 */ 2666 if (al->offset < size) 2667 notes->offsets[al->offset] = al; 2668 } else 2669 al->idx_asm = -1; 2670 } 2671 } 2672 2673 static inline int width_jumps(int n) 2674 { 2675 if (n >= 100) 2676 return 5; 2677 if (n / 10) 2678 return 2; 2679 return 1; 2680 } 2681 2682 static int annotation__max_ins_name(struct annotation *notes) 2683 { 2684 int max_name = 0, len; 2685 struct annotation_line *al; 2686 2687 list_for_each_entry(al, ¬es->src->source, node) { 2688 if (al->offset == -1) 2689 continue; 2690 2691 len = strlen(disasm_line(al)->ins.name); 2692 if (max_name < len) 2693 max_name = len; 2694 } 2695 2696 return max_name; 2697 } 2698 2699 void annotation__init_column_widths(struct annotation *notes, struct symbol *sym) 2700 { 2701 notes->widths.addr = notes->widths.target = 2702 notes->widths.min_addr = hex_width(symbol__size(sym)); 2703 notes->widths.max_addr = hex_width(sym->end); 2704 notes->widths.jumps = width_jumps(notes->max_jump_sources); 2705 notes->widths.max_ins_name = annotation__max_ins_name(notes); 2706 } 2707 2708 void annotation__update_column_widths(struct annotation *notes) 2709 { 2710 if (notes->options->use_offset) 2711 notes->widths.target = notes->widths.min_addr; 2712 else 2713 notes->widths.target = notes->widths.max_addr; 2714 2715 notes->widths.addr = notes->widths.target; 2716 2717 if (notes->options->show_nr_jumps) 2718 notes->widths.addr += notes->widths.jumps + 1; 2719 } 2720 2721 static void annotation__calc_lines(struct annotation *notes, struct map *map, 2722 struct rb_root *root, 2723 struct annotation_options *opts) 2724 { 2725 struct annotation_line *al; 2726 struct rb_root tmp_root = RB_ROOT; 2727 2728 list_for_each_entry(al, ¬es->src->source, node) { 2729 double percent_max = 0.0; 2730 int i; 2731 2732 for (i = 0; i < al->data_nr; i++) { 2733 double percent; 2734 2735 percent = annotation_data__percent(&al->data[i], 2736 opts->percent_type); 2737 2738 if (percent > percent_max) 2739 percent_max = percent; 2740 } 2741 2742 if (percent_max <= 0.5) 2743 continue; 2744 2745 al->path = get_srcline(map->dso, notes->start + al->offset, NULL, 2746 false, true, notes->start + al->offset); 2747 insert_source_line(&tmp_root, al, opts); 2748 } 2749 2750 resort_source_line(root, &tmp_root); 2751 } 2752 2753 static void symbol__calc_lines(struct map_symbol *ms, struct rb_root *root, 2754 struct annotation_options *opts) 2755 { 2756 struct annotation *notes = symbol__annotation(ms->sym); 2757 2758 annotation__calc_lines(notes, ms->map, root, opts); 2759 } 2760 2761 int symbol__tty_annotate2(struct map_symbol *ms, struct evsel *evsel, 2762 struct annotation_options *opts) 2763 { 2764 struct dso *dso = ms->map->dso; 2765 struct symbol *sym = ms->sym; 2766 struct rb_root source_line = RB_ROOT; 2767 struct hists *hists = evsel__hists(evsel); 2768 char buf[1024]; 2769 2770 if (symbol__annotate2(ms, evsel, opts, NULL) < 0) 2771 return -1; 2772 2773 if (opts->print_lines) { 2774 srcline_full_filename = opts->full_path; 2775 symbol__calc_lines(ms, &source_line, opts); 2776 print_summary(&source_line, dso->long_name); 2777 } 2778 2779 hists__scnprintf_title(hists, buf, sizeof(buf)); 2780 fprintf(stdout, "%s, [percent: %s]\n%s() %s\n", 2781 buf, percent_type_str(opts->percent_type), sym->name, dso->long_name); 2782 symbol__annotate_fprintf2(sym, stdout, opts); 2783 2784 annotated_source__purge(symbol__annotation(sym)->src); 2785 2786 return 0; 2787 } 2788 2789 int symbol__tty_annotate(struct map_symbol *ms, struct evsel *evsel, 2790 struct annotation_options *opts) 2791 { 2792 struct dso *dso = ms->map->dso; 2793 struct symbol *sym = ms->sym; 2794 struct rb_root source_line = RB_ROOT; 2795 2796 if (symbol__annotate(ms, evsel, opts, NULL) < 0) 2797 return -1; 2798 2799 symbol__calc_percent(sym, evsel); 2800 2801 if (opts->print_lines) { 2802 srcline_full_filename = opts->full_path; 2803 symbol__calc_lines(ms, &source_line, opts); 2804 print_summary(&source_line, dso->long_name); 2805 } 2806 2807 symbol__annotate_printf(ms, evsel, opts); 2808 2809 annotated_source__purge(symbol__annotation(sym)->src); 2810 2811 return 0; 2812 } 2813 2814 bool ui__has_annotation(void) 2815 { 2816 return use_browser == 1 && perf_hpp_list.sym; 2817 } 2818 2819 2820 static double annotation_line__max_percent(struct annotation_line *al, 2821 struct annotation *notes, 2822 unsigned int percent_type) 2823 { 2824 double percent_max = 0.0; 2825 int i; 2826 2827 for (i = 0; i < notes->nr_events; i++) { 2828 double percent; 2829 2830 percent = annotation_data__percent(&al->data[i], 2831 percent_type); 2832 2833 if (percent > percent_max) 2834 percent_max = percent; 2835 } 2836 2837 return percent_max; 2838 } 2839 2840 static void disasm_line__write(struct disasm_line *dl, struct annotation *notes, 2841 void *obj, char *bf, size_t size, 2842 void (*obj__printf)(void *obj, const char *fmt, ...), 2843 void (*obj__write_graph)(void *obj, int graph)) 2844 { 2845 if (dl->ins.ops && dl->ins.ops->scnprintf) { 2846 if (ins__is_jump(&dl->ins)) { 2847 bool fwd; 2848 2849 if (dl->ops.target.outside) 2850 goto call_like; 2851 fwd = dl->ops.target.offset > dl->al.offset; 2852 obj__write_graph(obj, fwd ? DARROW_CHAR : UARROW_CHAR); 2853 obj__printf(obj, " "); 2854 } else if (ins__is_call(&dl->ins)) { 2855 call_like: 2856 obj__write_graph(obj, RARROW_CHAR); 2857 obj__printf(obj, " "); 2858 } else if (ins__is_ret(&dl->ins)) { 2859 obj__write_graph(obj, LARROW_CHAR); 2860 obj__printf(obj, " "); 2861 } else { 2862 obj__printf(obj, " "); 2863 } 2864 } else { 2865 obj__printf(obj, " "); 2866 } 2867 2868 disasm_line__scnprintf(dl, bf, size, !notes->options->use_offset, notes->widths.max_ins_name); 2869 } 2870 2871 static void ipc_coverage_string(char *bf, int size, struct annotation *notes) 2872 { 2873 double ipc = 0.0, coverage = 0.0; 2874 2875 if (notes->hit_cycles) 2876 ipc = notes->hit_insn / ((double)notes->hit_cycles); 2877 2878 if (notes->total_insn) { 2879 coverage = notes->cover_insn * 100.0 / 2880 ((double)notes->total_insn); 2881 } 2882 2883 scnprintf(bf, size, "(Average IPC: %.2f, IPC Coverage: %.1f%%)", 2884 ipc, coverage); 2885 } 2886 2887 static void __annotation_line__write(struct annotation_line *al, struct annotation *notes, 2888 bool first_line, bool current_entry, bool change_color, int width, 2889 void *obj, unsigned int percent_type, 2890 int (*obj__set_color)(void *obj, int color), 2891 void (*obj__set_percent_color)(void *obj, double percent, bool current), 2892 int (*obj__set_jumps_percent_color)(void *obj, int nr, bool current), 2893 void (*obj__printf)(void *obj, const char *fmt, ...), 2894 void (*obj__write_graph)(void *obj, int graph)) 2895 2896 { 2897 double percent_max = annotation_line__max_percent(al, notes, percent_type); 2898 int pcnt_width = annotation__pcnt_width(notes), 2899 cycles_width = annotation__cycles_width(notes); 2900 bool show_title = false; 2901 char bf[256]; 2902 int printed; 2903 2904 if (first_line && (al->offset == -1 || percent_max == 0.0)) { 2905 if (notes->have_cycles) { 2906 if (al->ipc == 0.0 && al->cycles == 0) 2907 show_title = true; 2908 } else 2909 show_title = true; 2910 } 2911 2912 if (al->offset != -1 && percent_max != 0.0) { 2913 int i; 2914 2915 for (i = 0; i < notes->nr_events; i++) { 2916 double percent; 2917 2918 percent = annotation_data__percent(&al->data[i], percent_type); 2919 2920 obj__set_percent_color(obj, percent, current_entry); 2921 if (symbol_conf.show_total_period) { 2922 obj__printf(obj, "%11" PRIu64 " ", al->data[i].he.period); 2923 } else if (symbol_conf.show_nr_samples) { 2924 obj__printf(obj, "%6" PRIu64 " ", 2925 al->data[i].he.nr_samples); 2926 } else { 2927 obj__printf(obj, "%6.2f ", percent); 2928 } 2929 } 2930 } else { 2931 obj__set_percent_color(obj, 0, current_entry); 2932 2933 if (!show_title) 2934 obj__printf(obj, "%-*s", pcnt_width, " "); 2935 else { 2936 obj__printf(obj, "%-*s", pcnt_width, 2937 symbol_conf.show_total_period ? "Period" : 2938 symbol_conf.show_nr_samples ? "Samples" : "Percent"); 2939 } 2940 } 2941 2942 if (notes->have_cycles) { 2943 if (al->ipc) 2944 obj__printf(obj, "%*.2f ", ANNOTATION__IPC_WIDTH - 1, al->ipc); 2945 else if (!show_title) 2946 obj__printf(obj, "%*s", ANNOTATION__IPC_WIDTH, " "); 2947 else 2948 obj__printf(obj, "%*s ", ANNOTATION__IPC_WIDTH - 1, "IPC"); 2949 2950 if (!notes->options->show_minmax_cycle) { 2951 if (al->cycles) 2952 obj__printf(obj, "%*" PRIu64 " ", 2953 ANNOTATION__CYCLES_WIDTH - 1, al->cycles); 2954 else if (!show_title) 2955 obj__printf(obj, "%*s", 2956 ANNOTATION__CYCLES_WIDTH, " "); 2957 else 2958 obj__printf(obj, "%*s ", 2959 ANNOTATION__CYCLES_WIDTH - 1, 2960 "Cycle"); 2961 } else { 2962 if (al->cycles) { 2963 char str[32]; 2964 2965 scnprintf(str, sizeof(str), 2966 "%" PRIu64 "(%" PRIu64 "/%" PRIu64 ")", 2967 al->cycles, al->cycles_min, 2968 al->cycles_max); 2969 2970 obj__printf(obj, "%*s ", 2971 ANNOTATION__MINMAX_CYCLES_WIDTH - 1, 2972 str); 2973 } else if (!show_title) 2974 obj__printf(obj, "%*s", 2975 ANNOTATION__MINMAX_CYCLES_WIDTH, 2976 " "); 2977 else 2978 obj__printf(obj, "%*s ", 2979 ANNOTATION__MINMAX_CYCLES_WIDTH - 1, 2980 "Cycle(min/max)"); 2981 } 2982 2983 if (show_title && !*al->line) { 2984 ipc_coverage_string(bf, sizeof(bf), notes); 2985 obj__printf(obj, "%*s", ANNOTATION__AVG_IPC_WIDTH, bf); 2986 } 2987 } 2988 2989 obj__printf(obj, " "); 2990 2991 if (!*al->line) 2992 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width, " "); 2993 else if (al->offset == -1) { 2994 if (al->line_nr && notes->options->show_linenr) 2995 printed = scnprintf(bf, sizeof(bf), "%-*d ", notes->widths.addr + 1, al->line_nr); 2996 else 2997 printed = scnprintf(bf, sizeof(bf), "%-*s ", notes->widths.addr, " "); 2998 obj__printf(obj, bf); 2999 obj__printf(obj, "%-*s", width - printed - pcnt_width - cycles_width + 1, al->line); 3000 } else { 3001 u64 addr = al->offset; 3002 int color = -1; 3003 3004 if (!notes->options->use_offset) 3005 addr += notes->start; 3006 3007 if (!notes->options->use_offset) { 3008 printed = scnprintf(bf, sizeof(bf), "%" PRIx64 ": ", addr); 3009 } else { 3010 if (al->jump_sources && 3011 notes->options->offset_level >= ANNOTATION__OFFSET_JUMP_TARGETS) { 3012 if (notes->options->show_nr_jumps) { 3013 int prev; 3014 printed = scnprintf(bf, sizeof(bf), "%*d ", 3015 notes->widths.jumps, 3016 al->jump_sources); 3017 prev = obj__set_jumps_percent_color(obj, al->jump_sources, 3018 current_entry); 3019 obj__printf(obj, bf); 3020 obj__set_color(obj, prev); 3021 } 3022 print_addr: 3023 printed = scnprintf(bf, sizeof(bf), "%*" PRIx64 ": ", 3024 notes->widths.target, addr); 3025 } else if (ins__is_call(&disasm_line(al)->ins) && 3026 notes->options->offset_level >= ANNOTATION__OFFSET_CALL) { 3027 goto print_addr; 3028 } else if (notes->options->offset_level == ANNOTATION__MAX_OFFSET_LEVEL) { 3029 goto print_addr; 3030 } else { 3031 printed = scnprintf(bf, sizeof(bf), "%-*s ", 3032 notes->widths.addr, " "); 3033 } 3034 } 3035 3036 if (change_color) 3037 color = obj__set_color(obj, HE_COLORSET_ADDR); 3038 obj__printf(obj, bf); 3039 if (change_color) 3040 obj__set_color(obj, color); 3041 3042 disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf), obj__printf, obj__write_graph); 3043 3044 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width - 3 - printed, bf); 3045 } 3046 3047 } 3048 3049 void annotation_line__write(struct annotation_line *al, struct annotation *notes, 3050 struct annotation_write_ops *wops, 3051 struct annotation_options *opts) 3052 { 3053 __annotation_line__write(al, notes, wops->first_line, wops->current_entry, 3054 wops->change_color, wops->width, wops->obj, 3055 opts->percent_type, 3056 wops->set_color, wops->set_percent_color, 3057 wops->set_jumps_percent_color, wops->printf, 3058 wops->write_graph); 3059 } 3060 3061 int symbol__annotate2(struct map_symbol *ms, struct evsel *evsel, 3062 struct annotation_options *options, struct arch **parch) 3063 { 3064 struct symbol *sym = ms->sym; 3065 struct annotation *notes = symbol__annotation(sym); 3066 size_t size = symbol__size(sym); 3067 int nr_pcnt = 1, err; 3068 3069 notes->offsets = zalloc(size * sizeof(struct annotation_line *)); 3070 if (notes->offsets == NULL) 3071 return ENOMEM; 3072 3073 if (evsel__is_group_event(evsel)) 3074 nr_pcnt = evsel->core.nr_members; 3075 3076 err = symbol__annotate(ms, evsel, options, parch); 3077 if (err) 3078 goto out_free_offsets; 3079 3080 notes->options = options; 3081 3082 symbol__calc_percent(sym, evsel); 3083 3084 annotation__set_offsets(notes, size); 3085 annotation__mark_jump_targets(notes, sym); 3086 annotation__compute_ipc(notes, size); 3087 annotation__init_column_widths(notes, sym); 3088 notes->nr_events = nr_pcnt; 3089 3090 annotation__update_column_widths(notes); 3091 sym->annotate2 = true; 3092 3093 return 0; 3094 3095 out_free_offsets: 3096 zfree(¬es->offsets); 3097 return err; 3098 } 3099 3100 static int annotation__config(const char *var, const char *value, void *data) 3101 { 3102 struct annotation_options *opt = data; 3103 3104 if (!strstarts(var, "annotate.")) 3105 return 0; 3106 3107 if (!strcmp(var, "annotate.offset_level")) { 3108 perf_config_u8(&opt->offset_level, "offset_level", value); 3109 3110 if (opt->offset_level > ANNOTATION__MAX_OFFSET_LEVEL) 3111 opt->offset_level = ANNOTATION__MAX_OFFSET_LEVEL; 3112 else if (opt->offset_level < ANNOTATION__MIN_OFFSET_LEVEL) 3113 opt->offset_level = ANNOTATION__MIN_OFFSET_LEVEL; 3114 } else if (!strcmp(var, "annotate.hide_src_code")) { 3115 opt->hide_src_code = perf_config_bool("hide_src_code", value); 3116 } else if (!strcmp(var, "annotate.jump_arrows")) { 3117 opt->jump_arrows = perf_config_bool("jump_arrows", value); 3118 } else if (!strcmp(var, "annotate.show_linenr")) { 3119 opt->show_linenr = perf_config_bool("show_linenr", value); 3120 } else if (!strcmp(var, "annotate.show_nr_jumps")) { 3121 opt->show_nr_jumps = perf_config_bool("show_nr_jumps", value); 3122 } else if (!strcmp(var, "annotate.show_nr_samples")) { 3123 symbol_conf.show_nr_samples = perf_config_bool("show_nr_samples", 3124 value); 3125 } else if (!strcmp(var, "annotate.show_total_period")) { 3126 symbol_conf.show_total_period = perf_config_bool("show_total_period", 3127 value); 3128 } else if (!strcmp(var, "annotate.use_offset")) { 3129 opt->use_offset = perf_config_bool("use_offset", value); 3130 } else { 3131 pr_debug("%s variable unknown, ignoring...", var); 3132 } 3133 3134 return 0; 3135 } 3136 3137 void annotation_config__init(struct annotation_options *opt) 3138 { 3139 perf_config(annotation__config, opt); 3140 } 3141 3142 static unsigned int parse_percent_type(char *str1, char *str2) 3143 { 3144 unsigned int type = (unsigned int) -1; 3145 3146 if (!strcmp("period", str1)) { 3147 if (!strcmp("local", str2)) 3148 type = PERCENT_PERIOD_LOCAL; 3149 else if (!strcmp("global", str2)) 3150 type = PERCENT_PERIOD_GLOBAL; 3151 } 3152 3153 if (!strcmp("hits", str1)) { 3154 if (!strcmp("local", str2)) 3155 type = PERCENT_HITS_LOCAL; 3156 else if (!strcmp("global", str2)) 3157 type = PERCENT_HITS_GLOBAL; 3158 } 3159 3160 return type; 3161 } 3162 3163 int annotate_parse_percent_type(const struct option *opt, const char *_str, 3164 int unset __maybe_unused) 3165 { 3166 struct annotation_options *opts = opt->value; 3167 unsigned int type; 3168 char *str1, *str2; 3169 int err = -1; 3170 3171 str1 = strdup(_str); 3172 if (!str1) 3173 return -ENOMEM; 3174 3175 str2 = strchr(str1, '-'); 3176 if (!str2) 3177 goto out; 3178 3179 *str2++ = 0; 3180 3181 type = parse_percent_type(str1, str2); 3182 if (type == (unsigned int) -1) 3183 type = parse_percent_type(str2, str1); 3184 if (type != (unsigned int) -1) { 3185 opts->percent_type = type; 3186 err = 0; 3187 } 3188 3189 out: 3190 free(str1); 3191 return err; 3192 } 3193 3194 int annotate_check_args(struct annotation_options *args) 3195 { 3196 if (args->prefix_strip && !args->prefix) { 3197 pr_err("--prefix-strip requires --prefix\n"); 3198 return -1; 3199 } 3200 return 0; 3201 } 3202