1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <[email protected]> 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/mips/annotate/instructions.c" 156 #include "arch/x86/annotate/instructions.c" 157 #include "arch/powerpc/annotate/instructions.c" 158 #include "arch/s390/annotate/instructions.c" 159 #include "arch/sparc/annotate/instructions.c" 160 161 static struct arch architectures[] = { 162 { 163 .name = "arc", 164 .init = arc__annotate_init, 165 }, 166 { 167 .name = "arm", 168 .init = arm__annotate_init, 169 }, 170 { 171 .name = "arm64", 172 .init = arm64__annotate_init, 173 }, 174 { 175 .name = "csky", 176 .init = csky__annotate_init, 177 }, 178 { 179 .name = "mips", 180 .init = mips__annotate_init, 181 .objdump = { 182 .comment_char = '#', 183 }, 184 }, 185 { 186 .name = "x86", 187 .init = x86__annotate_init, 188 .instructions = x86__instructions, 189 .nr_instructions = ARRAY_SIZE(x86__instructions), 190 .ins_is_fused = x86__ins_is_fused, 191 .objdump = { 192 .comment_char = '#', 193 }, 194 }, 195 { 196 .name = "powerpc", 197 .init = powerpc__annotate_init, 198 }, 199 { 200 .name = "s390", 201 .init = s390__annotate_init, 202 .objdump = { 203 .comment_char = '#', 204 }, 205 }, 206 { 207 .name = "sparc", 208 .init = sparc__annotate_init, 209 .objdump = { 210 .comment_char = '#', 211 }, 212 }, 213 }; 214 215 static void ins__delete(struct ins_operands *ops) 216 { 217 if (ops == NULL) 218 return; 219 zfree(&ops->source.raw); 220 zfree(&ops->source.name); 221 zfree(&ops->target.raw); 222 zfree(&ops->target.name); 223 } 224 225 static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size, 226 struct ins_operands *ops, int max_ins_name) 227 { 228 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->raw); 229 } 230 231 int ins__scnprintf(struct ins *ins, char *bf, size_t size, 232 struct ins_operands *ops, int max_ins_name) 233 { 234 if (ins->ops->scnprintf) 235 return ins->ops->scnprintf(ins, bf, size, ops, max_ins_name); 236 237 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name); 238 } 239 240 bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2) 241 { 242 if (!arch || !arch->ins_is_fused) 243 return false; 244 245 return arch->ins_is_fused(arch, ins1, ins2); 246 } 247 248 static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms) 249 { 250 char *endptr, *tok, *name; 251 struct map *map = ms->map; 252 struct addr_map_symbol target = { 253 .ms = { .map = map, }, 254 }; 255 256 ops->target.addr = strtoull(ops->raw, &endptr, 16); 257 258 name = strchr(endptr, '<'); 259 if (name == NULL) 260 goto indirect_call; 261 262 name++; 263 264 if (arch->objdump.skip_functions_char && 265 strchr(name, arch->objdump.skip_functions_char)) 266 return -1; 267 268 tok = strchr(name, '>'); 269 if (tok == NULL) 270 return -1; 271 272 *tok = '\0'; 273 ops->target.name = strdup(name); 274 *tok = '>'; 275 276 if (ops->target.name == NULL) 277 return -1; 278 find_target: 279 target.addr = map__objdump_2mem(map, ops->target.addr); 280 281 if (maps__find_ams(ms->maps, &target) == 0 && 282 map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr) 283 ops->target.sym = target.ms.sym; 284 285 return 0; 286 287 indirect_call: 288 tok = strchr(endptr, '*'); 289 if (tok != NULL) { 290 endptr++; 291 292 /* Indirect call can use a non-rip register and offset: callq *0x8(%rbx). 293 * Do not parse such instruction. */ 294 if (strstr(endptr, "(%r") == NULL) 295 ops->target.addr = strtoull(endptr, NULL, 16); 296 } 297 goto find_target; 298 } 299 300 static int call__scnprintf(struct ins *ins, char *bf, size_t size, 301 struct ins_operands *ops, int max_ins_name) 302 { 303 if (ops->target.sym) 304 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name); 305 306 if (ops->target.addr == 0) 307 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name); 308 309 if (ops->target.name) 310 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.name); 311 312 return scnprintf(bf, size, "%-*s *%" PRIx64, max_ins_name, ins->name, ops->target.addr); 313 } 314 315 static struct ins_ops call_ops = { 316 .parse = call__parse, 317 .scnprintf = call__scnprintf, 318 }; 319 320 bool ins__is_call(const struct ins *ins) 321 { 322 return ins->ops == &call_ops || ins->ops == &s390_call_ops; 323 } 324 325 /* 326 * Prevents from matching commas in the comment section, e.g.: 327 * ffff200008446e70: b.cs ffff2000084470f4 <generic_exec_single+0x314> // b.hs, b.nlast 328 */ 329 static inline const char *validate_comma(const char *c, struct ins_operands *ops) 330 { 331 if (ops->raw_comment && c > ops->raw_comment) 332 return NULL; 333 334 return c; 335 } 336 337 static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms) 338 { 339 struct map *map = ms->map; 340 struct symbol *sym = ms->sym; 341 struct addr_map_symbol target = { 342 .ms = { .map = map, }, 343 }; 344 const char *c = strchr(ops->raw, ','); 345 u64 start, end; 346 347 ops->raw_comment = strchr(ops->raw, arch->objdump.comment_char); 348 c = validate_comma(c, ops); 349 350 /* 351 * Examples of lines to parse for the _cpp_lex_token@@Base 352 * function: 353 * 354 * 1159e6c: jne 115aa32 <_cpp_lex_token@@Base+0xf92> 355 * 1159e8b: jne c469be <cpp_named_operator2name@@Base+0xa72> 356 * 357 * The first is a jump to an offset inside the same function, 358 * the second is to another function, i.e. that 0xa72 is an 359 * offset in the cpp_named_operator2name@@base function. 360 */ 361 /* 362 * skip over possible up to 2 operands to get to address, e.g.: 363 * tbnz w0, #26, ffff0000083cd190 <security_file_permission+0xd0> 364 */ 365 if (c++ != NULL) { 366 ops->target.addr = strtoull(c, NULL, 16); 367 if (!ops->target.addr) { 368 c = strchr(c, ','); 369 c = validate_comma(c, ops); 370 if (c++ != NULL) 371 ops->target.addr = strtoull(c, NULL, 16); 372 } 373 } else { 374 ops->target.addr = strtoull(ops->raw, NULL, 16); 375 } 376 377 target.addr = map__objdump_2mem(map, ops->target.addr); 378 start = map->unmap_ip(map, sym->start), 379 end = map->unmap_ip(map, sym->end); 380 381 ops->target.outside = target.addr < start || target.addr > end; 382 383 /* 384 * FIXME: things like this in _cpp_lex_token (gcc's cc1 program): 385 386 cpp_named_operator2name@@Base+0xa72 387 388 * Point to a place that is after the cpp_named_operator2name 389 * boundaries, i.e. in the ELF symbol table for cc1 390 * cpp_named_operator2name is marked as being 32-bytes long, but it in 391 * fact is much larger than that, so we seem to need a symbols__find() 392 * routine that looks for >= current->start and < next_symbol->start, 393 * possibly just for C++ objects? 394 * 395 * For now lets just make some progress by marking jumps to outside the 396 * current function as call like. 397 * 398 * Actual navigation will come next, with further understanding of how 399 * the symbol searching and disassembly should be done. 400 */ 401 if (maps__find_ams(ms->maps, &target) == 0 && 402 map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr) 403 ops->target.sym = target.ms.sym; 404 405 if (!ops->target.outside) { 406 ops->target.offset = target.addr - start; 407 ops->target.offset_avail = true; 408 } else { 409 ops->target.offset_avail = false; 410 } 411 412 return 0; 413 } 414 415 static int jump__scnprintf(struct ins *ins, char *bf, size_t size, 416 struct ins_operands *ops, int max_ins_name) 417 { 418 const char *c; 419 420 if (!ops->target.addr || ops->target.offset < 0) 421 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name); 422 423 if (ops->target.outside && ops->target.sym != NULL) 424 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name); 425 426 c = strchr(ops->raw, ','); 427 c = validate_comma(c, ops); 428 429 if (c != NULL) { 430 const char *c2 = strchr(c + 1, ','); 431 432 c2 = validate_comma(c2, ops); 433 /* check for 3-op insn */ 434 if (c2 != NULL) 435 c = c2; 436 c++; 437 438 /* mirror arch objdump's space-after-comma style */ 439 if (*c == ' ') 440 c++; 441 } 442 443 return scnprintf(bf, size, "%-*s %.*s%" PRIx64, max_ins_name, 444 ins->name, c ? c - ops->raw : 0, ops->raw, 445 ops->target.offset); 446 } 447 448 static struct ins_ops jump_ops = { 449 .parse = jump__parse, 450 .scnprintf = jump__scnprintf, 451 }; 452 453 bool ins__is_jump(const struct ins *ins) 454 { 455 return ins->ops == &jump_ops; 456 } 457 458 static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep) 459 { 460 char *endptr, *name, *t; 461 462 if (strstr(raw, "(%rip)") == NULL) 463 return 0; 464 465 *addrp = strtoull(comment, &endptr, 16); 466 if (endptr == comment) 467 return 0; 468 name = strchr(endptr, '<'); 469 if (name == NULL) 470 return -1; 471 472 name++; 473 474 t = strchr(name, '>'); 475 if (t == NULL) 476 return 0; 477 478 *t = '\0'; 479 *namep = strdup(name); 480 *t = '>'; 481 482 return 0; 483 } 484 485 static int lock__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms) 486 { 487 ops->locked.ops = zalloc(sizeof(*ops->locked.ops)); 488 if (ops->locked.ops == NULL) 489 return 0; 490 491 if (disasm_line__parse(ops->raw, &ops->locked.ins.name, &ops->locked.ops->raw) < 0) 492 goto out_free_ops; 493 494 ops->locked.ins.ops = ins__find(arch, ops->locked.ins.name); 495 496 if (ops->locked.ins.ops == NULL) 497 goto out_free_ops; 498 499 if (ops->locked.ins.ops->parse && 500 ops->locked.ins.ops->parse(arch, ops->locked.ops, ms) < 0) 501 goto out_free_ops; 502 503 return 0; 504 505 out_free_ops: 506 zfree(&ops->locked.ops); 507 return 0; 508 } 509 510 static int lock__scnprintf(struct ins *ins, char *bf, size_t size, 511 struct ins_operands *ops, int max_ins_name) 512 { 513 int printed; 514 515 if (ops->locked.ins.ops == NULL) 516 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name); 517 518 printed = scnprintf(bf, size, "%-*s ", max_ins_name, ins->name); 519 return printed + ins__scnprintf(&ops->locked.ins, bf + printed, 520 size - printed, ops->locked.ops, max_ins_name); 521 } 522 523 static void lock__delete(struct ins_operands *ops) 524 { 525 struct ins *ins = &ops->locked.ins; 526 527 if (ins->ops && ins->ops->free) 528 ins->ops->free(ops->locked.ops); 529 else 530 ins__delete(ops->locked.ops); 531 532 zfree(&ops->locked.ops); 533 zfree(&ops->target.raw); 534 zfree(&ops->target.name); 535 } 536 537 static struct ins_ops lock_ops = { 538 .free = lock__delete, 539 .parse = lock__parse, 540 .scnprintf = lock__scnprintf, 541 }; 542 543 static int mov__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms __maybe_unused) 544 { 545 char *s = strchr(ops->raw, ','), *target, *comment, prev; 546 547 if (s == NULL) 548 return -1; 549 550 *s = '\0'; 551 ops->source.raw = strdup(ops->raw); 552 *s = ','; 553 554 if (ops->source.raw == NULL) 555 return -1; 556 557 target = ++s; 558 comment = strchr(s, arch->objdump.comment_char); 559 560 if (comment != NULL) 561 s = comment - 1; 562 else 563 s = strchr(s, '\0') - 1; 564 565 while (s > target && isspace(s[0])) 566 --s; 567 s++; 568 prev = *s; 569 *s = '\0'; 570 571 ops->target.raw = strdup(target); 572 *s = prev; 573 574 if (ops->target.raw == NULL) 575 goto out_free_source; 576 577 if (comment == NULL) 578 return 0; 579 580 comment = skip_spaces(comment); 581 comment__symbol(ops->source.raw, comment + 1, &ops->source.addr, &ops->source.name); 582 comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name); 583 584 return 0; 585 586 out_free_source: 587 zfree(&ops->source.raw); 588 return -1; 589 } 590 591 static int mov__scnprintf(struct ins *ins, char *bf, size_t size, 592 struct ins_operands *ops, int max_ins_name) 593 { 594 return scnprintf(bf, size, "%-*s %s,%s", max_ins_name, ins->name, 595 ops->source.name ?: ops->source.raw, 596 ops->target.name ?: ops->target.raw); 597 } 598 599 static struct ins_ops mov_ops = { 600 .parse = mov__parse, 601 .scnprintf = mov__scnprintf, 602 }; 603 604 static int dec__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map_symbol *ms __maybe_unused) 605 { 606 char *target, *comment, *s, prev; 607 608 target = s = ops->raw; 609 610 while (s[0] != '\0' && !isspace(s[0])) 611 ++s; 612 prev = *s; 613 *s = '\0'; 614 615 ops->target.raw = strdup(target); 616 *s = prev; 617 618 if (ops->target.raw == NULL) 619 return -1; 620 621 comment = strchr(s, arch->objdump.comment_char); 622 if (comment == NULL) 623 return 0; 624 625 comment = skip_spaces(comment); 626 comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name); 627 628 return 0; 629 } 630 631 static int dec__scnprintf(struct ins *ins, char *bf, size_t size, 632 struct ins_operands *ops, int max_ins_name) 633 { 634 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, 635 ops->target.name ?: ops->target.raw); 636 } 637 638 static struct ins_ops dec_ops = { 639 .parse = dec__parse, 640 .scnprintf = dec__scnprintf, 641 }; 642 643 static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size, 644 struct ins_operands *ops __maybe_unused, int max_ins_name) 645 { 646 return scnprintf(bf, size, "%-*s", max_ins_name, "nop"); 647 } 648 649 static struct ins_ops nop_ops = { 650 .scnprintf = nop__scnprintf, 651 }; 652 653 static struct ins_ops ret_ops = { 654 .scnprintf = ins__raw_scnprintf, 655 }; 656 657 bool ins__is_ret(const struct ins *ins) 658 { 659 return ins->ops == &ret_ops; 660 } 661 662 bool ins__is_lock(const struct ins *ins) 663 { 664 return ins->ops == &lock_ops; 665 } 666 667 static int ins__key_cmp(const void *name, const void *insp) 668 { 669 const struct ins *ins = insp; 670 671 return strcmp(name, ins->name); 672 } 673 674 static int ins__cmp(const void *a, const void *b) 675 { 676 const struct ins *ia = a; 677 const struct ins *ib = b; 678 679 return strcmp(ia->name, ib->name); 680 } 681 682 static void ins__sort(struct arch *arch) 683 { 684 const int nmemb = arch->nr_instructions; 685 686 qsort(arch->instructions, nmemb, sizeof(struct ins), ins__cmp); 687 } 688 689 static struct ins_ops *__ins__find(struct arch *arch, const char *name) 690 { 691 struct ins *ins; 692 const int nmemb = arch->nr_instructions; 693 694 if (!arch->sorted_instructions) { 695 ins__sort(arch); 696 arch->sorted_instructions = true; 697 } 698 699 ins = bsearch(name, arch->instructions, nmemb, sizeof(struct ins), ins__key_cmp); 700 return ins ? ins->ops : NULL; 701 } 702 703 static struct ins_ops *ins__find(struct arch *arch, const char *name) 704 { 705 struct ins_ops *ops = __ins__find(arch, name); 706 707 if (!ops && arch->associate_instruction_ops) 708 ops = arch->associate_instruction_ops(arch, name); 709 710 return ops; 711 } 712 713 static int arch__key_cmp(const void *name, const void *archp) 714 { 715 const struct arch *arch = archp; 716 717 return strcmp(name, arch->name); 718 } 719 720 static int arch__cmp(const void *a, const void *b) 721 { 722 const struct arch *aa = a; 723 const struct arch *ab = b; 724 725 return strcmp(aa->name, ab->name); 726 } 727 728 static void arch__sort(void) 729 { 730 const int nmemb = ARRAY_SIZE(architectures); 731 732 qsort(architectures, nmemb, sizeof(struct arch), arch__cmp); 733 } 734 735 static struct arch *arch__find(const char *name) 736 { 737 const int nmemb = ARRAY_SIZE(architectures); 738 static bool sorted; 739 740 if (!sorted) { 741 arch__sort(); 742 sorted = true; 743 } 744 745 return bsearch(name, architectures, nmemb, sizeof(struct arch), arch__key_cmp); 746 } 747 748 static struct annotated_source *annotated_source__new(void) 749 { 750 struct annotated_source *src = zalloc(sizeof(*src)); 751 752 if (src != NULL) 753 INIT_LIST_HEAD(&src->source); 754 755 return src; 756 } 757 758 static __maybe_unused void annotated_source__delete(struct annotated_source *src) 759 { 760 if (src == NULL) 761 return; 762 zfree(&src->histograms); 763 zfree(&src->cycles_hist); 764 free(src); 765 } 766 767 static int annotated_source__alloc_histograms(struct annotated_source *src, 768 size_t size, int nr_hists) 769 { 770 size_t sizeof_sym_hist; 771 772 /* 773 * Add buffer of one element for zero length symbol. 774 * When sample is taken from first instruction of 775 * zero length symbol, perf still resolves it and 776 * shows symbol name in perf report and allows to 777 * annotate it. 778 */ 779 if (size == 0) 780 size = 1; 781 782 /* Check for overflow when calculating sizeof_sym_hist */ 783 if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(struct sym_hist_entry)) 784 return -1; 785 786 sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(struct sym_hist_entry)); 787 788 /* Check for overflow in zalloc argument */ 789 if (sizeof_sym_hist > SIZE_MAX / nr_hists) 790 return -1; 791 792 src->sizeof_sym_hist = sizeof_sym_hist; 793 src->nr_histograms = nr_hists; 794 src->histograms = calloc(nr_hists, sizeof_sym_hist) ; 795 return src->histograms ? 0 : -1; 796 } 797 798 /* The cycles histogram is lazily allocated. */ 799 static int symbol__alloc_hist_cycles(struct symbol *sym) 800 { 801 struct annotation *notes = symbol__annotation(sym); 802 const size_t size = symbol__size(sym); 803 804 notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist)); 805 if (notes->src->cycles_hist == NULL) 806 return -1; 807 return 0; 808 } 809 810 void symbol__annotate_zero_histograms(struct symbol *sym) 811 { 812 struct annotation *notes = symbol__annotation(sym); 813 814 pthread_mutex_lock(¬es->lock); 815 if (notes->src != NULL) { 816 memset(notes->src->histograms, 0, 817 notes->src->nr_histograms * notes->src->sizeof_sym_hist); 818 if (notes->src->cycles_hist) 819 memset(notes->src->cycles_hist, 0, 820 symbol__size(sym) * sizeof(struct cyc_hist)); 821 } 822 pthread_mutex_unlock(¬es->lock); 823 } 824 825 static int __symbol__account_cycles(struct cyc_hist *ch, 826 u64 start, 827 unsigned offset, unsigned cycles, 828 unsigned have_start) 829 { 830 /* 831 * For now we can only account one basic block per 832 * final jump. But multiple could be overlapping. 833 * Always account the longest one. So when 834 * a shorter one has been already seen throw it away. 835 * 836 * We separately always account the full cycles. 837 */ 838 ch[offset].num_aggr++; 839 ch[offset].cycles_aggr += cycles; 840 841 if (cycles > ch[offset].cycles_max) 842 ch[offset].cycles_max = cycles; 843 844 if (ch[offset].cycles_min) { 845 if (cycles && cycles < ch[offset].cycles_min) 846 ch[offset].cycles_min = cycles; 847 } else 848 ch[offset].cycles_min = cycles; 849 850 if (!have_start && ch[offset].have_start) 851 return 0; 852 if (ch[offset].num) { 853 if (have_start && (!ch[offset].have_start || 854 ch[offset].start > start)) { 855 ch[offset].have_start = 0; 856 ch[offset].cycles = 0; 857 ch[offset].num = 0; 858 if (ch[offset].reset < 0xffff) 859 ch[offset].reset++; 860 } else if (have_start && 861 ch[offset].start < start) 862 return 0; 863 } 864 865 if (ch[offset].num < NUM_SPARKS) 866 ch[offset].cycles_spark[ch[offset].num] = cycles; 867 868 ch[offset].have_start = have_start; 869 ch[offset].start = start; 870 ch[offset].cycles += cycles; 871 ch[offset].num++; 872 return 0; 873 } 874 875 static int __symbol__inc_addr_samples(struct map_symbol *ms, 876 struct annotated_source *src, int evidx, u64 addr, 877 struct perf_sample *sample) 878 { 879 struct symbol *sym = ms->sym; 880 unsigned offset; 881 struct sym_hist *h; 882 883 pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, ms->map->unmap_ip(ms->map, addr)); 884 885 if ((addr < sym->start || addr >= sym->end) && 886 (addr != sym->end || sym->start != sym->end)) { 887 pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n", 888 __func__, __LINE__, sym->name, sym->start, addr, sym->end); 889 return -ERANGE; 890 } 891 892 offset = addr - sym->start; 893 h = annotated_source__histogram(src, evidx); 894 if (h == NULL) { 895 pr_debug("%s(%d): ENOMEM! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 ", func: %d\n", 896 __func__, __LINE__, sym->name, sym->start, addr, sym->end, sym->type == STT_FUNC); 897 return -ENOMEM; 898 } 899 h->nr_samples++; 900 h->addr[offset].nr_samples++; 901 h->period += sample->period; 902 h->addr[offset].period += sample->period; 903 904 pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64 905 ", evidx=%d] => nr_samples: %" PRIu64 ", period: %" PRIu64 "\n", 906 sym->start, sym->name, addr, addr - sym->start, evidx, 907 h->addr[offset].nr_samples, h->addr[offset].period); 908 return 0; 909 } 910 911 static struct cyc_hist *symbol__cycles_hist(struct symbol *sym) 912 { 913 struct annotation *notes = symbol__annotation(sym); 914 915 if (notes->src == NULL) { 916 notes->src = annotated_source__new(); 917 if (notes->src == NULL) 918 return NULL; 919 goto alloc_cycles_hist; 920 } 921 922 if (!notes->src->cycles_hist) { 923 alloc_cycles_hist: 924 symbol__alloc_hist_cycles(sym); 925 } 926 927 return notes->src->cycles_hist; 928 } 929 930 struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists) 931 { 932 struct annotation *notes = symbol__annotation(sym); 933 934 if (notes->src == NULL) { 935 notes->src = annotated_source__new(); 936 if (notes->src == NULL) 937 return NULL; 938 goto alloc_histograms; 939 } 940 941 if (notes->src->histograms == NULL) { 942 alloc_histograms: 943 annotated_source__alloc_histograms(notes->src, symbol__size(sym), 944 nr_hists); 945 } 946 947 return notes->src; 948 } 949 950 static int symbol__inc_addr_samples(struct map_symbol *ms, 951 struct evsel *evsel, u64 addr, 952 struct perf_sample *sample) 953 { 954 struct symbol *sym = ms->sym; 955 struct annotated_source *src; 956 957 if (sym == NULL) 958 return 0; 959 src = symbol__hists(sym, evsel->evlist->core.nr_entries); 960 return src ? __symbol__inc_addr_samples(ms, src, evsel->idx, addr, sample) : 0; 961 } 962 963 static int symbol__account_cycles(u64 addr, u64 start, 964 struct symbol *sym, unsigned cycles) 965 { 966 struct cyc_hist *cycles_hist; 967 unsigned offset; 968 969 if (sym == NULL) 970 return 0; 971 cycles_hist = symbol__cycles_hist(sym); 972 if (cycles_hist == NULL) 973 return -ENOMEM; 974 if (addr < sym->start || addr >= sym->end) 975 return -ERANGE; 976 977 if (start) { 978 if (start < sym->start || start >= sym->end) 979 return -ERANGE; 980 if (start >= addr) 981 start = 0; 982 } 983 offset = addr - sym->start; 984 return __symbol__account_cycles(cycles_hist, 985 start ? start - sym->start : 0, 986 offset, cycles, 987 !!start); 988 } 989 990 int addr_map_symbol__account_cycles(struct addr_map_symbol *ams, 991 struct addr_map_symbol *start, 992 unsigned cycles) 993 { 994 u64 saddr = 0; 995 int err; 996 997 if (!cycles) 998 return 0; 999 1000 /* 1001 * Only set start when IPC can be computed. We can only 1002 * compute it when the basic block is completely in a single 1003 * function. 1004 * Special case the case when the jump is elsewhere, but 1005 * it starts on the function start. 1006 */ 1007 if (start && 1008 (start->ms.sym == ams->ms.sym || 1009 (ams->ms.sym && 1010 start->addr == ams->ms.sym->start + ams->ms.map->start))) 1011 saddr = start->al_addr; 1012 if (saddr == 0) 1013 pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n", 1014 ams->addr, 1015 start ? start->addr : 0, 1016 ams->ms.sym ? ams->ms.sym->start + ams->ms.map->start : 0, 1017 saddr); 1018 err = symbol__account_cycles(ams->al_addr, saddr, ams->ms.sym, cycles); 1019 if (err) 1020 pr_debug2("account_cycles failed %d\n", err); 1021 return err; 1022 } 1023 1024 static unsigned annotation__count_insn(struct annotation *notes, u64 start, u64 end) 1025 { 1026 unsigned n_insn = 0; 1027 u64 offset; 1028 1029 for (offset = start; offset <= end; offset++) { 1030 if (notes->offsets[offset]) 1031 n_insn++; 1032 } 1033 return n_insn; 1034 } 1035 1036 static void annotation__count_and_fill(struct annotation *notes, u64 start, u64 end, struct cyc_hist *ch) 1037 { 1038 unsigned n_insn; 1039 unsigned int cover_insn = 0; 1040 u64 offset; 1041 1042 n_insn = annotation__count_insn(notes, start, end); 1043 if (n_insn && ch->num && ch->cycles) { 1044 float ipc = n_insn / ((double)ch->cycles / (double)ch->num); 1045 1046 /* Hide data when there are too many overlaps. */ 1047 if (ch->reset >= 0x7fff) 1048 return; 1049 1050 for (offset = start; offset <= end; offset++) { 1051 struct annotation_line *al = notes->offsets[offset]; 1052 1053 if (al && al->ipc == 0.0) { 1054 al->ipc = ipc; 1055 cover_insn++; 1056 } 1057 } 1058 1059 if (cover_insn) { 1060 notes->hit_cycles += ch->cycles; 1061 notes->hit_insn += n_insn * ch->num; 1062 notes->cover_insn += cover_insn; 1063 } 1064 } 1065 } 1066 1067 void annotation__compute_ipc(struct annotation *notes, size_t size) 1068 { 1069 s64 offset; 1070 1071 if (!notes->src || !notes->src->cycles_hist) 1072 return; 1073 1074 notes->total_insn = annotation__count_insn(notes, 0, size - 1); 1075 notes->hit_cycles = 0; 1076 notes->hit_insn = 0; 1077 notes->cover_insn = 0; 1078 1079 pthread_mutex_lock(¬es->lock); 1080 for (offset = size - 1; offset >= 0; --offset) { 1081 struct cyc_hist *ch; 1082 1083 ch = ¬es->src->cycles_hist[offset]; 1084 if (ch && ch->cycles) { 1085 struct annotation_line *al; 1086 1087 if (ch->have_start) 1088 annotation__count_and_fill(notes, ch->start, offset, ch); 1089 al = notes->offsets[offset]; 1090 if (al && ch->num_aggr) { 1091 al->cycles = ch->cycles_aggr / ch->num_aggr; 1092 al->cycles_max = ch->cycles_max; 1093 al->cycles_min = ch->cycles_min; 1094 } 1095 notes->have_cycles = true; 1096 } 1097 } 1098 pthread_mutex_unlock(¬es->lock); 1099 } 1100 1101 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample, 1102 struct evsel *evsel) 1103 { 1104 return symbol__inc_addr_samples(&ams->ms, evsel, ams->al_addr, sample); 1105 } 1106 1107 int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample, 1108 struct evsel *evsel, u64 ip) 1109 { 1110 return symbol__inc_addr_samples(&he->ms, evsel, ip, sample); 1111 } 1112 1113 static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, struct map_symbol *ms) 1114 { 1115 dl->ins.ops = ins__find(arch, dl->ins.name); 1116 1117 if (!dl->ins.ops) 1118 return; 1119 1120 if (dl->ins.ops->parse && dl->ins.ops->parse(arch, &dl->ops, ms) < 0) 1121 dl->ins.ops = NULL; 1122 } 1123 1124 static int disasm_line__parse(char *line, const char **namep, char **rawp) 1125 { 1126 char tmp, *name = skip_spaces(line); 1127 1128 if (name[0] == '\0') 1129 return -1; 1130 1131 *rawp = name + 1; 1132 1133 while ((*rawp)[0] != '\0' && !isspace((*rawp)[0])) 1134 ++*rawp; 1135 1136 tmp = (*rawp)[0]; 1137 (*rawp)[0] = '\0'; 1138 *namep = strdup(name); 1139 1140 if (*namep == NULL) 1141 goto out; 1142 1143 (*rawp)[0] = tmp; 1144 *rawp = strim(*rawp); 1145 1146 return 0; 1147 1148 out: 1149 return -1; 1150 } 1151 1152 struct annotate_args { 1153 struct arch *arch; 1154 struct map_symbol ms; 1155 struct evsel *evsel; 1156 struct annotation_options *options; 1157 s64 offset; 1158 char *line; 1159 int line_nr; 1160 }; 1161 1162 static void annotation_line__init(struct annotation_line *al, 1163 struct annotate_args *args, 1164 int nr) 1165 { 1166 al->offset = args->offset; 1167 al->line = strdup(args->line); 1168 al->line_nr = args->line_nr; 1169 al->data_nr = nr; 1170 } 1171 1172 static void annotation_line__exit(struct annotation_line *al) 1173 { 1174 free_srcline(al->path); 1175 zfree(&al->line); 1176 } 1177 1178 static size_t disasm_line_size(int nr) 1179 { 1180 struct annotation_line *al; 1181 1182 return (sizeof(struct disasm_line) + (sizeof(al->data[0]) * nr)); 1183 } 1184 1185 /* 1186 * Allocating the disasm annotation line data with 1187 * following structure: 1188 * 1189 * ------------------------------------------- 1190 * struct disasm_line | struct annotation_line 1191 * ------------------------------------------- 1192 * 1193 * We have 'struct annotation_line' member as last member 1194 * of 'struct disasm_line' to have an easy access. 1195 */ 1196 static struct disasm_line *disasm_line__new(struct annotate_args *args) 1197 { 1198 struct disasm_line *dl = NULL; 1199 int nr = 1; 1200 1201 if (evsel__is_group_event(args->evsel)) 1202 nr = args->evsel->core.nr_members; 1203 1204 dl = zalloc(disasm_line_size(nr)); 1205 if (!dl) 1206 return NULL; 1207 1208 annotation_line__init(&dl->al, args, nr); 1209 if (dl->al.line == NULL) 1210 goto out_delete; 1211 1212 if (args->offset != -1) { 1213 if (disasm_line__parse(dl->al.line, &dl->ins.name, &dl->ops.raw) < 0) 1214 goto out_free_line; 1215 1216 disasm_line__init_ins(dl, args->arch, &args->ms); 1217 } 1218 1219 return dl; 1220 1221 out_free_line: 1222 zfree(&dl->al.line); 1223 out_delete: 1224 free(dl); 1225 return NULL; 1226 } 1227 1228 void disasm_line__free(struct disasm_line *dl) 1229 { 1230 if (dl->ins.ops && dl->ins.ops->free) 1231 dl->ins.ops->free(&dl->ops); 1232 else 1233 ins__delete(&dl->ops); 1234 zfree(&dl->ins.name); 1235 annotation_line__exit(&dl->al); 1236 free(dl); 1237 } 1238 1239 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw, int max_ins_name) 1240 { 1241 if (raw || !dl->ins.ops) 1242 return scnprintf(bf, size, "%-*s %s", max_ins_name, dl->ins.name, dl->ops.raw); 1243 1244 return ins__scnprintf(&dl->ins, bf, size, &dl->ops, max_ins_name); 1245 } 1246 1247 static void annotation_line__add(struct annotation_line *al, struct list_head *head) 1248 { 1249 list_add_tail(&al->node, head); 1250 } 1251 1252 struct annotation_line * 1253 annotation_line__next(struct annotation_line *pos, struct list_head *head) 1254 { 1255 list_for_each_entry_continue(pos, head, node) 1256 if (pos->offset >= 0) 1257 return pos; 1258 1259 return NULL; 1260 } 1261 1262 static const char *annotate__address_color(struct block_range *br) 1263 { 1264 double cov = block_range__coverage(br); 1265 1266 if (cov >= 0) { 1267 /* mark red for >75% coverage */ 1268 if (cov > 0.75) 1269 return PERF_COLOR_RED; 1270 1271 /* mark dull for <1% coverage */ 1272 if (cov < 0.01) 1273 return PERF_COLOR_NORMAL; 1274 } 1275 1276 return PERF_COLOR_MAGENTA; 1277 } 1278 1279 static const char *annotate__asm_color(struct block_range *br) 1280 { 1281 double cov = block_range__coverage(br); 1282 1283 if (cov >= 0) { 1284 /* mark dull for <1% coverage */ 1285 if (cov < 0.01) 1286 return PERF_COLOR_NORMAL; 1287 } 1288 1289 return PERF_COLOR_BLUE; 1290 } 1291 1292 static void annotate__branch_printf(struct block_range *br, u64 addr) 1293 { 1294 bool emit_comment = true; 1295 1296 if (!br) 1297 return; 1298 1299 #if 1 1300 if (br->is_target && br->start == addr) { 1301 struct block_range *branch = br; 1302 double p; 1303 1304 /* 1305 * Find matching branch to our target. 1306 */ 1307 while (!branch->is_branch) 1308 branch = block_range__next(branch); 1309 1310 p = 100 *(double)br->entry / branch->coverage; 1311 1312 if (p > 0.1) { 1313 if (emit_comment) { 1314 emit_comment = false; 1315 printf("\t#"); 1316 } 1317 1318 /* 1319 * The percentage of coverage joined at this target in relation 1320 * to the next branch. 1321 */ 1322 printf(" +%.2f%%", p); 1323 } 1324 } 1325 #endif 1326 if (br->is_branch && br->end == addr) { 1327 double p = 100*(double)br->taken / br->coverage; 1328 1329 if (p > 0.1) { 1330 if (emit_comment) { 1331 emit_comment = false; 1332 printf("\t#"); 1333 } 1334 1335 /* 1336 * The percentage of coverage leaving at this branch, and 1337 * its prediction ratio. 1338 */ 1339 printf(" -%.2f%% (p:%.2f%%)", p, 100*(double)br->pred / br->taken); 1340 } 1341 } 1342 } 1343 1344 static int disasm_line__print(struct disasm_line *dl, u64 start, int addr_fmt_width) 1345 { 1346 s64 offset = dl->al.offset; 1347 const u64 addr = start + offset; 1348 struct block_range *br; 1349 1350 br = block_range__find(addr); 1351 color_fprintf(stdout, annotate__address_color(br), " %*" PRIx64 ":", addr_fmt_width, addr); 1352 color_fprintf(stdout, annotate__asm_color(br), "%s", dl->al.line); 1353 annotate__branch_printf(br, addr); 1354 return 0; 1355 } 1356 1357 static int 1358 annotation_line__print(struct annotation_line *al, struct symbol *sym, u64 start, 1359 struct evsel *evsel, u64 len, int min_pcnt, int printed, 1360 int max_lines, struct annotation_line *queue, int addr_fmt_width, 1361 int percent_type) 1362 { 1363 struct disasm_line *dl = container_of(al, struct disasm_line, al); 1364 static const char *prev_line; 1365 static const char *prev_color; 1366 1367 if (al->offset != -1) { 1368 double max_percent = 0.0; 1369 int i, nr_percent = 1; 1370 const char *color; 1371 struct annotation *notes = symbol__annotation(sym); 1372 1373 for (i = 0; i < al->data_nr; i++) { 1374 double percent; 1375 1376 percent = annotation_data__percent(&al->data[i], 1377 percent_type); 1378 1379 if (percent > max_percent) 1380 max_percent = percent; 1381 } 1382 1383 if (al->data_nr > nr_percent) 1384 nr_percent = al->data_nr; 1385 1386 if (max_percent < min_pcnt) 1387 return -1; 1388 1389 if (max_lines && printed >= max_lines) 1390 return 1; 1391 1392 if (queue != NULL) { 1393 list_for_each_entry_from(queue, ¬es->src->source, node) { 1394 if (queue == al) 1395 break; 1396 annotation_line__print(queue, sym, start, evsel, len, 1397 0, 0, 1, NULL, addr_fmt_width, 1398 percent_type); 1399 } 1400 } 1401 1402 color = get_percent_color(max_percent); 1403 1404 /* 1405 * Also color the filename and line if needed, with 1406 * the same color than the percentage. Don't print it 1407 * twice for close colored addr with the same filename:line 1408 */ 1409 if (al->path) { 1410 if (!prev_line || strcmp(prev_line, al->path) 1411 || color != prev_color) { 1412 color_fprintf(stdout, color, " %s", al->path); 1413 prev_line = al->path; 1414 prev_color = color; 1415 } 1416 } 1417 1418 for (i = 0; i < nr_percent; i++) { 1419 struct annotation_data *data = &al->data[i]; 1420 double percent; 1421 1422 percent = annotation_data__percent(data, percent_type); 1423 color = get_percent_color(percent); 1424 1425 if (symbol_conf.show_total_period) 1426 color_fprintf(stdout, color, " %11" PRIu64, 1427 data->he.period); 1428 else if (symbol_conf.show_nr_samples) 1429 color_fprintf(stdout, color, " %7" PRIu64, 1430 data->he.nr_samples); 1431 else 1432 color_fprintf(stdout, color, " %7.2f", percent); 1433 } 1434 1435 printf(" : "); 1436 1437 disasm_line__print(dl, start, addr_fmt_width); 1438 printf("\n"); 1439 } else if (max_lines && printed >= max_lines) 1440 return 1; 1441 else { 1442 int width = symbol_conf.show_total_period ? 12 : 8; 1443 1444 if (queue) 1445 return -1; 1446 1447 if (evsel__is_group_event(evsel)) 1448 width *= evsel->core.nr_members; 1449 1450 if (!*al->line) 1451 printf(" %*s:\n", width, " "); 1452 else 1453 printf(" %*s: %*s %s\n", width, " ", addr_fmt_width, " ", al->line); 1454 } 1455 1456 return 0; 1457 } 1458 1459 /* 1460 * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw) 1461 * which looks like following 1462 * 1463 * 0000000000415500 <_init>: 1464 * 415500: sub $0x8,%rsp 1465 * 415504: mov 0x2f5ad5(%rip),%rax # 70afe0 <_DYNAMIC+0x2f8> 1466 * 41550b: test %rax,%rax 1467 * 41550e: je 415515 <_init+0x15> 1468 * 415510: callq 416e70 <__gmon_start__@plt> 1469 * 415515: add $0x8,%rsp 1470 * 415519: retq 1471 * 1472 * it will be parsed and saved into struct disasm_line as 1473 * <offset> <name> <ops.raw> 1474 * 1475 * The offset will be a relative offset from the start of the symbol and -1 1476 * means that it's not a disassembly line so should be treated differently. 1477 * The ops.raw part will be parsed further according to type of the instruction. 1478 */ 1479 static int symbol__parse_objdump_line(struct symbol *sym, 1480 struct annotate_args *args, 1481 char *parsed_line, int *line_nr) 1482 { 1483 struct map *map = args->ms.map; 1484 struct annotation *notes = symbol__annotation(sym); 1485 struct disasm_line *dl; 1486 char *tmp; 1487 s64 line_ip, offset = -1; 1488 regmatch_t match[2]; 1489 1490 /* /filename:linenr ? Save line number and ignore. */ 1491 if (regexec(&file_lineno, parsed_line, 2, match, 0) == 0) { 1492 *line_nr = atoi(parsed_line + match[1].rm_so); 1493 return 0; 1494 } 1495 1496 /* Process hex address followed by ':'. */ 1497 line_ip = strtoull(parsed_line, &tmp, 16); 1498 if (parsed_line != tmp && tmp[0] == ':' && tmp[1] != '\0') { 1499 u64 start = map__rip_2objdump(map, sym->start), 1500 end = map__rip_2objdump(map, sym->end); 1501 1502 offset = line_ip - start; 1503 if ((u64)line_ip < start || (u64)line_ip >= end) 1504 offset = -1; 1505 else 1506 parsed_line = tmp + 1; 1507 } 1508 1509 args->offset = offset; 1510 args->line = parsed_line; 1511 args->line_nr = *line_nr; 1512 args->ms.sym = sym; 1513 1514 dl = disasm_line__new(args); 1515 (*line_nr)++; 1516 1517 if (dl == NULL) 1518 return -1; 1519 1520 if (!disasm_line__has_local_offset(dl)) { 1521 dl->ops.target.offset = dl->ops.target.addr - 1522 map__rip_2objdump(map, sym->start); 1523 dl->ops.target.offset_avail = true; 1524 } 1525 1526 /* kcore has no symbols, so add the call target symbol */ 1527 if (dl->ins.ops && ins__is_call(&dl->ins) && !dl->ops.target.sym) { 1528 struct addr_map_symbol target = { 1529 .addr = dl->ops.target.addr, 1530 .ms = { .map = map, }, 1531 }; 1532 1533 if (!maps__find_ams(args->ms.maps, &target) && 1534 target.ms.sym->start == target.al_addr) 1535 dl->ops.target.sym = target.ms.sym; 1536 } 1537 1538 annotation_line__add(&dl->al, ¬es->src->source); 1539 1540 return 0; 1541 } 1542 1543 static __attribute__((constructor)) void symbol__init_regexpr(void) 1544 { 1545 regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED); 1546 } 1547 1548 static void delete_last_nop(struct symbol *sym) 1549 { 1550 struct annotation *notes = symbol__annotation(sym); 1551 struct list_head *list = ¬es->src->source; 1552 struct disasm_line *dl; 1553 1554 while (!list_empty(list)) { 1555 dl = list_entry(list->prev, struct disasm_line, al.node); 1556 1557 if (dl->ins.ops) { 1558 if (dl->ins.ops != &nop_ops) 1559 return; 1560 } else { 1561 if (!strstr(dl->al.line, " nop ") && 1562 !strstr(dl->al.line, " nopl ") && 1563 !strstr(dl->al.line, " nopw ")) 1564 return; 1565 } 1566 1567 list_del_init(&dl->al.node); 1568 disasm_line__free(dl); 1569 } 1570 } 1571 1572 int symbol__strerror_disassemble(struct map_symbol *ms, int errnum, char *buf, size_t buflen) 1573 { 1574 struct dso *dso = ms->map->dso; 1575 1576 BUG_ON(buflen == 0); 1577 1578 if (errnum >= 0) { 1579 str_error_r(errnum, buf, buflen); 1580 return 0; 1581 } 1582 1583 switch (errnum) { 1584 case SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX: { 1585 char bf[SBUILD_ID_SIZE + 15] = " with build id "; 1586 char *build_id_msg = NULL; 1587 1588 if (dso->has_build_id) { 1589 build_id__sprintf(&dso->bid, bf + 15); 1590 build_id_msg = bf; 1591 } 1592 scnprintf(buf, buflen, 1593 "No vmlinux file%s\nwas found in the path.\n\n" 1594 "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n" 1595 "Please use:\n\n" 1596 " perf buildid-cache -vu vmlinux\n\n" 1597 "or:\n\n" 1598 " --vmlinux vmlinux\n", build_id_msg ?: ""); 1599 } 1600 break; 1601 case SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF: 1602 scnprintf(buf, buflen, "Please link with binutils's libopcode to enable BPF annotation"); 1603 break; 1604 case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP: 1605 scnprintf(buf, buflen, "Problems with arch specific instruction name regular expressions."); 1606 break; 1607 case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING: 1608 scnprintf(buf, buflen, "Problems while parsing the CPUID in the arch specific initialization."); 1609 break; 1610 case SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE: 1611 scnprintf(buf, buflen, "Invalid BPF file: %s.", dso->long_name); 1612 break; 1613 case SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF: 1614 scnprintf(buf, buflen, "The %s BPF file has no BTF section, compile with -g or use pahole -J.", 1615 dso->long_name); 1616 break; 1617 default: 1618 scnprintf(buf, buflen, "Internal error: Invalid %d error code\n", errnum); 1619 break; 1620 } 1621 1622 return 0; 1623 } 1624 1625 static int dso__disassemble_filename(struct dso *dso, char *filename, size_t filename_size) 1626 { 1627 char linkname[PATH_MAX]; 1628 char *build_id_filename; 1629 char *build_id_path = NULL; 1630 char *pos; 1631 int len; 1632 1633 if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && 1634 !dso__is_kcore(dso)) 1635 return SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX; 1636 1637 build_id_filename = dso__build_id_filename(dso, NULL, 0, false); 1638 if (build_id_filename) { 1639 __symbol__join_symfs(filename, filename_size, build_id_filename); 1640 free(build_id_filename); 1641 } else { 1642 if (dso->has_build_id) 1643 return ENOMEM; 1644 goto fallback; 1645 } 1646 1647 build_id_path = strdup(filename); 1648 if (!build_id_path) 1649 return ENOMEM; 1650 1651 /* 1652 * old style build-id cache has name of XX/XXXXXXX.. while 1653 * new style has XX/XXXXXXX../{elf,kallsyms,vdso}. 1654 * extract the build-id part of dirname in the new style only. 1655 */ 1656 pos = strrchr(build_id_path, '/'); 1657 if (pos && strlen(pos) < SBUILD_ID_SIZE - 2) 1658 dirname(build_id_path); 1659 1660 if (dso__is_kcore(dso)) 1661 goto fallback; 1662 1663 len = readlink(build_id_path, linkname, sizeof(linkname) - 1); 1664 if (len < 0) 1665 goto fallback; 1666 1667 linkname[len] = '\0'; 1668 if (strstr(linkname, DSO__NAME_KALLSYMS) || 1669 access(filename, R_OK)) { 1670 fallback: 1671 /* 1672 * If we don't have build-ids or the build-id file isn't in the 1673 * cache, or is just a kallsyms file, well, lets hope that this 1674 * DSO is the same as when 'perf record' ran. 1675 */ 1676 __symbol__join_symfs(filename, filename_size, dso->long_name); 1677 } 1678 1679 free(build_id_path); 1680 return 0; 1681 } 1682 1683 #if defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT) 1684 #define PACKAGE "perf" 1685 #include <bfd.h> 1686 #include <dis-asm.h> 1687 1688 static int symbol__disassemble_bpf(struct symbol *sym, 1689 struct annotate_args *args) 1690 { 1691 struct annotation *notes = symbol__annotation(sym); 1692 struct annotation_options *opts = args->options; 1693 struct bpf_prog_info_linear *info_linear; 1694 struct bpf_prog_linfo *prog_linfo = NULL; 1695 struct bpf_prog_info_node *info_node; 1696 int len = sym->end - sym->start; 1697 disassembler_ftype disassemble; 1698 struct map *map = args->ms.map; 1699 struct disassemble_info info; 1700 struct dso *dso = map->dso; 1701 int pc = 0, count, sub_id; 1702 struct btf *btf = NULL; 1703 char tpath[PATH_MAX]; 1704 size_t buf_size; 1705 int nr_skip = 0; 1706 char *buf; 1707 bfd *bfdf; 1708 int ret; 1709 FILE *s; 1710 1711 if (dso->binary_type != DSO_BINARY_TYPE__BPF_PROG_INFO) 1712 return SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE; 1713 1714 pr_debug("%s: handling sym %s addr %" PRIx64 " len %" PRIx64 "\n", __func__, 1715 sym->name, sym->start, sym->end - sym->start); 1716 1717 memset(tpath, 0, sizeof(tpath)); 1718 perf_exe(tpath, sizeof(tpath)); 1719 1720 bfdf = bfd_openr(tpath, NULL); 1721 assert(bfdf); 1722 assert(bfd_check_format(bfdf, bfd_object)); 1723 1724 s = open_memstream(&buf, &buf_size); 1725 if (!s) { 1726 ret = errno; 1727 goto out; 1728 } 1729 init_disassemble_info(&info, s, 1730 (fprintf_ftype) fprintf); 1731 1732 info.arch = bfd_get_arch(bfdf); 1733 info.mach = bfd_get_mach(bfdf); 1734 1735 info_node = perf_env__find_bpf_prog_info(dso->bpf_prog.env, 1736 dso->bpf_prog.id); 1737 if (!info_node) { 1738 ret = SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF; 1739 goto out; 1740 } 1741 info_linear = info_node->info_linear; 1742 sub_id = dso->bpf_prog.sub_id; 1743 1744 info.buffer = (void *)(uintptr_t)(info_linear->info.jited_prog_insns); 1745 info.buffer_length = info_linear->info.jited_prog_len; 1746 1747 if (info_linear->info.nr_line_info) 1748 prog_linfo = bpf_prog_linfo__new(&info_linear->info); 1749 1750 if (info_linear->info.btf_id) { 1751 struct btf_node *node; 1752 1753 node = perf_env__find_btf(dso->bpf_prog.env, 1754 info_linear->info.btf_id); 1755 if (node) 1756 btf = btf__new((__u8 *)(node->data), 1757 node->data_size); 1758 } 1759 1760 disassemble_init_for_target(&info); 1761 1762 #ifdef DISASM_FOUR_ARGS_SIGNATURE 1763 disassemble = disassembler(info.arch, 1764 bfd_big_endian(bfdf), 1765 info.mach, 1766 bfdf); 1767 #else 1768 disassemble = disassembler(bfdf); 1769 #endif 1770 assert(disassemble); 1771 1772 fflush(s); 1773 do { 1774 const struct bpf_line_info *linfo = NULL; 1775 struct disasm_line *dl; 1776 size_t prev_buf_size; 1777 const char *srcline; 1778 u64 addr; 1779 1780 addr = pc + ((u64 *)(uintptr_t)(info_linear->info.jited_ksyms))[sub_id]; 1781 count = disassemble(pc, &info); 1782 1783 if (prog_linfo) 1784 linfo = bpf_prog_linfo__lfind_addr_func(prog_linfo, 1785 addr, sub_id, 1786 nr_skip); 1787 1788 if (linfo && btf) { 1789 srcline = btf__name_by_offset(btf, linfo->line_off); 1790 nr_skip++; 1791 } else 1792 srcline = NULL; 1793 1794 fprintf(s, "\n"); 1795 prev_buf_size = buf_size; 1796 fflush(s); 1797 1798 if (!opts->hide_src_code && srcline) { 1799 args->offset = -1; 1800 args->line = strdup(srcline); 1801 args->line_nr = 0; 1802 args->ms.sym = sym; 1803 dl = disasm_line__new(args); 1804 if (dl) { 1805 annotation_line__add(&dl->al, 1806 ¬es->src->source); 1807 } 1808 } 1809 1810 args->offset = pc; 1811 args->line = buf + prev_buf_size; 1812 args->line_nr = 0; 1813 args->ms.sym = sym; 1814 dl = disasm_line__new(args); 1815 if (dl) 1816 annotation_line__add(&dl->al, ¬es->src->source); 1817 1818 pc += count; 1819 } while (count > 0 && pc < len); 1820 1821 ret = 0; 1822 out: 1823 free(prog_linfo); 1824 free(btf); 1825 fclose(s); 1826 bfd_close(bfdf); 1827 return ret; 1828 } 1829 #else // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT) 1830 static int symbol__disassemble_bpf(struct symbol *sym __maybe_unused, 1831 struct annotate_args *args __maybe_unused) 1832 { 1833 return SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF; 1834 } 1835 #endif // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT) 1836 1837 static int 1838 symbol__disassemble_bpf_image(struct symbol *sym, 1839 struct annotate_args *args) 1840 { 1841 struct annotation *notes = symbol__annotation(sym); 1842 struct disasm_line *dl; 1843 1844 args->offset = -1; 1845 args->line = strdup("to be implemented"); 1846 args->line_nr = 0; 1847 dl = disasm_line__new(args); 1848 if (dl) 1849 annotation_line__add(&dl->al, ¬es->src->source); 1850 1851 free(args->line); 1852 return 0; 1853 } 1854 1855 /* 1856 * Possibly create a new version of line with tabs expanded. Returns the 1857 * existing or new line, storage is updated if a new line is allocated. If 1858 * allocation fails then NULL is returned. 1859 */ 1860 static char *expand_tabs(char *line, char **storage, size_t *storage_len) 1861 { 1862 size_t i, src, dst, len, new_storage_len, num_tabs; 1863 char *new_line; 1864 size_t line_len = strlen(line); 1865 1866 for (num_tabs = 0, i = 0; i < line_len; i++) 1867 if (line[i] == '\t') 1868 num_tabs++; 1869 1870 if (num_tabs == 0) 1871 return line; 1872 1873 /* 1874 * Space for the line and '\0', less the leading and trailing 1875 * spaces. Each tab may introduce 7 additional spaces. 1876 */ 1877 new_storage_len = line_len + 1 + (num_tabs * 7); 1878 1879 new_line = malloc(new_storage_len); 1880 if (new_line == NULL) { 1881 pr_err("Failure allocating memory for tab expansion\n"); 1882 return NULL; 1883 } 1884 1885 /* 1886 * Copy regions starting at src and expand tabs. If there are two 1887 * adjacent tabs then 'src == i', the memcpy is of size 0 and the spaces 1888 * are inserted. 1889 */ 1890 for (i = 0, src = 0, dst = 0; i < line_len && num_tabs; i++) { 1891 if (line[i] == '\t') { 1892 len = i - src; 1893 memcpy(&new_line[dst], &line[src], len); 1894 dst += len; 1895 new_line[dst++] = ' '; 1896 while (dst % 8 != 0) 1897 new_line[dst++] = ' '; 1898 src = i + 1; 1899 num_tabs--; 1900 } 1901 } 1902 1903 /* Expand the last region. */ 1904 len = line_len - src; 1905 memcpy(&new_line[dst], &line[src], len); 1906 dst += len; 1907 new_line[dst] = '\0'; 1908 1909 free(*storage); 1910 *storage = new_line; 1911 *storage_len = new_storage_len; 1912 return new_line; 1913 1914 } 1915 1916 static int symbol__disassemble(struct symbol *sym, struct annotate_args *args) 1917 { 1918 struct annotation_options *opts = args->options; 1919 struct map *map = args->ms.map; 1920 struct dso *dso = map->dso; 1921 char *command; 1922 FILE *file; 1923 char symfs_filename[PATH_MAX]; 1924 struct kcore_extract kce; 1925 bool delete_extract = false; 1926 bool decomp = false; 1927 int lineno = 0; 1928 int nline; 1929 char *line; 1930 size_t line_len; 1931 const char *objdump_argv[] = { 1932 "/bin/sh", 1933 "-c", 1934 NULL, /* Will be the objdump command to run. */ 1935 "--", 1936 NULL, /* Will be the symfs path. */ 1937 NULL, 1938 }; 1939 struct child_process objdump_process; 1940 int err = dso__disassemble_filename(dso, symfs_filename, sizeof(symfs_filename)); 1941 1942 if (err) 1943 return err; 1944 1945 pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__, 1946 symfs_filename, sym->name, map->unmap_ip(map, sym->start), 1947 map->unmap_ip(map, sym->end)); 1948 1949 pr_debug("annotating [%p] %30s : [%p] %30s\n", 1950 dso, dso->long_name, sym, sym->name); 1951 1952 if (dso->binary_type == DSO_BINARY_TYPE__BPF_PROG_INFO) { 1953 return symbol__disassemble_bpf(sym, args); 1954 } else if (dso->binary_type == DSO_BINARY_TYPE__BPF_IMAGE) { 1955 return symbol__disassemble_bpf_image(sym, args); 1956 } else if (dso__is_kcore(dso)) { 1957 kce.kcore_filename = symfs_filename; 1958 kce.addr = map__rip_2objdump(map, sym->start); 1959 kce.offs = sym->start; 1960 kce.len = sym->end - sym->start; 1961 if (!kcore_extract__create(&kce)) { 1962 delete_extract = true; 1963 strlcpy(symfs_filename, kce.extract_filename, 1964 sizeof(symfs_filename)); 1965 } 1966 } else if (dso__needs_decompress(dso)) { 1967 char tmp[KMOD_DECOMP_LEN]; 1968 1969 if (dso__decompress_kmodule_path(dso, symfs_filename, 1970 tmp, sizeof(tmp)) < 0) 1971 return -1; 1972 1973 decomp = true; 1974 strcpy(symfs_filename, tmp); 1975 } 1976 1977 err = asprintf(&command, 1978 "%s %s%s --start-address=0x%016" PRIx64 1979 " --stop-address=0x%016" PRIx64 1980 " -l -d %s %s %s %c%s%c %s%s -C \"$1\"", 1981 opts->objdump_path ?: "objdump", 1982 opts->disassembler_style ? "-M " : "", 1983 opts->disassembler_style ?: "", 1984 map__rip_2objdump(map, sym->start), 1985 map__rip_2objdump(map, sym->end), 1986 opts->show_asm_raw ? "" : "--no-show-raw-insn", 1987 opts->annotate_src ? "-S" : "", 1988 opts->prefix ? "--prefix " : "", 1989 opts->prefix ? '"' : ' ', 1990 opts->prefix ?: "", 1991 opts->prefix ? '"' : ' ', 1992 opts->prefix_strip ? "--prefix-strip=" : "", 1993 opts->prefix_strip ?: ""); 1994 1995 if (err < 0) { 1996 pr_err("Failure allocating memory for the command to run\n"); 1997 goto out_remove_tmp; 1998 } 1999 2000 pr_debug("Executing: %s\n", command); 2001 2002 objdump_argv[2] = command; 2003 objdump_argv[4] = symfs_filename; 2004 2005 /* Create a pipe to read from for stdout */ 2006 memset(&objdump_process, 0, sizeof(objdump_process)); 2007 objdump_process.argv = objdump_argv; 2008 objdump_process.out = -1; 2009 if (start_command(&objdump_process)) { 2010 pr_err("Failure starting to run %s\n", command); 2011 err = -1; 2012 goto out_free_command; 2013 } 2014 2015 file = fdopen(objdump_process.out, "r"); 2016 if (!file) { 2017 pr_err("Failure creating FILE stream for %s\n", command); 2018 /* 2019 * If we were using debug info should retry with 2020 * original binary. 2021 */ 2022 err = -1; 2023 goto out_close_stdout; 2024 } 2025 2026 /* Storage for getline. */ 2027 line = NULL; 2028 line_len = 0; 2029 2030 nline = 0; 2031 while (!feof(file)) { 2032 const char *match; 2033 char *expanded_line; 2034 2035 if (getline(&line, &line_len, file) < 0 || !line) 2036 break; 2037 2038 /* Skip lines containing "filename:" */ 2039 match = strstr(line, symfs_filename); 2040 if (match && match[strlen(symfs_filename)] == ':') 2041 continue; 2042 2043 expanded_line = strim(line); 2044 expanded_line = expand_tabs(expanded_line, &line, &line_len); 2045 if (!expanded_line) 2046 break; 2047 2048 /* 2049 * The source code line number (lineno) needs to be kept in 2050 * across calls to symbol__parse_objdump_line(), so that it 2051 * can associate it with the instructions till the next one. 2052 * See disasm_line__new() and struct disasm_line::line_nr. 2053 */ 2054 if (symbol__parse_objdump_line(sym, args, expanded_line, 2055 &lineno) < 0) 2056 break; 2057 nline++; 2058 } 2059 free(line); 2060 2061 err = finish_command(&objdump_process); 2062 if (err) 2063 pr_err("Error running %s\n", command); 2064 2065 if (nline == 0) { 2066 err = -1; 2067 pr_err("No output from %s\n", command); 2068 } 2069 2070 /* 2071 * kallsyms does not have symbol sizes so there may a nop at the end. 2072 * Remove it. 2073 */ 2074 if (dso__is_kcore(dso)) 2075 delete_last_nop(sym); 2076 2077 fclose(file); 2078 2079 out_close_stdout: 2080 close(objdump_process.out); 2081 2082 out_free_command: 2083 free(command); 2084 2085 out_remove_tmp: 2086 if (decomp) 2087 unlink(symfs_filename); 2088 2089 if (delete_extract) 2090 kcore_extract__delete(&kce); 2091 2092 return err; 2093 } 2094 2095 static void calc_percent(struct sym_hist *sym_hist, 2096 struct hists *hists, 2097 struct annotation_data *data, 2098 s64 offset, s64 end) 2099 { 2100 unsigned int hits = 0; 2101 u64 period = 0; 2102 2103 while (offset < end) { 2104 hits += sym_hist->addr[offset].nr_samples; 2105 period += sym_hist->addr[offset].period; 2106 ++offset; 2107 } 2108 2109 if (sym_hist->nr_samples) { 2110 data->he.period = period; 2111 data->he.nr_samples = hits; 2112 data->percent[PERCENT_HITS_LOCAL] = 100.0 * hits / sym_hist->nr_samples; 2113 } 2114 2115 if (hists->stats.nr_non_filtered_samples) 2116 data->percent[PERCENT_HITS_GLOBAL] = 100.0 * hits / hists->stats.nr_non_filtered_samples; 2117 2118 if (sym_hist->period) 2119 data->percent[PERCENT_PERIOD_LOCAL] = 100.0 * period / sym_hist->period; 2120 2121 if (hists->stats.total_period) 2122 data->percent[PERCENT_PERIOD_GLOBAL] = 100.0 * period / hists->stats.total_period; 2123 } 2124 2125 static void annotation__calc_percent(struct annotation *notes, 2126 struct evsel *leader, s64 len) 2127 { 2128 struct annotation_line *al, *next; 2129 struct evsel *evsel; 2130 2131 list_for_each_entry(al, ¬es->src->source, node) { 2132 s64 end; 2133 int i = 0; 2134 2135 if (al->offset == -1) 2136 continue; 2137 2138 next = annotation_line__next(al, ¬es->src->source); 2139 end = next ? next->offset : len; 2140 2141 for_each_group_evsel(evsel, leader) { 2142 struct hists *hists = evsel__hists(evsel); 2143 struct annotation_data *data; 2144 struct sym_hist *sym_hist; 2145 2146 BUG_ON(i >= al->data_nr); 2147 2148 sym_hist = annotation__histogram(notes, evsel->idx); 2149 data = &al->data[i++]; 2150 2151 calc_percent(sym_hist, hists, data, al->offset, end); 2152 } 2153 } 2154 } 2155 2156 void symbol__calc_percent(struct symbol *sym, struct evsel *evsel) 2157 { 2158 struct annotation *notes = symbol__annotation(sym); 2159 2160 annotation__calc_percent(notes, evsel, symbol__size(sym)); 2161 } 2162 2163 int symbol__annotate(struct map_symbol *ms, struct evsel *evsel, 2164 struct annotation_options *options, struct arch **parch) 2165 { 2166 struct symbol *sym = ms->sym; 2167 struct annotation *notes = symbol__annotation(sym); 2168 struct annotate_args args = { 2169 .evsel = evsel, 2170 .options = options, 2171 }; 2172 struct perf_env *env = evsel__env(evsel); 2173 const char *arch_name = perf_env__arch(env); 2174 struct arch *arch; 2175 int err; 2176 2177 if (!arch_name) 2178 return errno; 2179 2180 args.arch = arch = arch__find(arch_name); 2181 if (arch == NULL) 2182 return ENOTSUP; 2183 2184 if (parch) 2185 *parch = arch; 2186 2187 if (arch->init) { 2188 err = arch->init(arch, env ? env->cpuid : NULL); 2189 if (err) { 2190 pr_err("%s: failed to initialize %s arch priv area\n", __func__, arch->name); 2191 return err; 2192 } 2193 } 2194 2195 args.ms = *ms; 2196 notes->start = map__rip_2objdump(ms->map, sym->start); 2197 2198 return symbol__disassemble(sym, &args); 2199 } 2200 2201 static void insert_source_line(struct rb_root *root, struct annotation_line *al, 2202 struct annotation_options *opts) 2203 { 2204 struct annotation_line *iter; 2205 struct rb_node **p = &root->rb_node; 2206 struct rb_node *parent = NULL; 2207 int i, ret; 2208 2209 while (*p != NULL) { 2210 parent = *p; 2211 iter = rb_entry(parent, struct annotation_line, rb_node); 2212 2213 ret = strcmp(iter->path, al->path); 2214 if (ret == 0) { 2215 for (i = 0; i < al->data_nr; i++) { 2216 iter->data[i].percent_sum += annotation_data__percent(&al->data[i], 2217 opts->percent_type); 2218 } 2219 return; 2220 } 2221 2222 if (ret < 0) 2223 p = &(*p)->rb_left; 2224 else 2225 p = &(*p)->rb_right; 2226 } 2227 2228 for (i = 0; i < al->data_nr; i++) { 2229 al->data[i].percent_sum = annotation_data__percent(&al->data[i], 2230 opts->percent_type); 2231 } 2232 2233 rb_link_node(&al->rb_node, parent, p); 2234 rb_insert_color(&al->rb_node, root); 2235 } 2236 2237 static int cmp_source_line(struct annotation_line *a, struct annotation_line *b) 2238 { 2239 int i; 2240 2241 for (i = 0; i < a->data_nr; i++) { 2242 if (a->data[i].percent_sum == b->data[i].percent_sum) 2243 continue; 2244 return a->data[i].percent_sum > b->data[i].percent_sum; 2245 } 2246 2247 return 0; 2248 } 2249 2250 static void __resort_source_line(struct rb_root *root, struct annotation_line *al) 2251 { 2252 struct annotation_line *iter; 2253 struct rb_node **p = &root->rb_node; 2254 struct rb_node *parent = NULL; 2255 2256 while (*p != NULL) { 2257 parent = *p; 2258 iter = rb_entry(parent, struct annotation_line, rb_node); 2259 2260 if (cmp_source_line(al, iter)) 2261 p = &(*p)->rb_left; 2262 else 2263 p = &(*p)->rb_right; 2264 } 2265 2266 rb_link_node(&al->rb_node, parent, p); 2267 rb_insert_color(&al->rb_node, root); 2268 } 2269 2270 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root) 2271 { 2272 struct annotation_line *al; 2273 struct rb_node *node; 2274 2275 node = rb_first(src_root); 2276 while (node) { 2277 struct rb_node *next; 2278 2279 al = rb_entry(node, struct annotation_line, rb_node); 2280 next = rb_next(node); 2281 rb_erase(node, src_root); 2282 2283 __resort_source_line(dest_root, al); 2284 node = next; 2285 } 2286 } 2287 2288 static void print_summary(struct rb_root *root, const char *filename) 2289 { 2290 struct annotation_line *al; 2291 struct rb_node *node; 2292 2293 printf("\nSorted summary for file %s\n", filename); 2294 printf("----------------------------------------------\n\n"); 2295 2296 if (RB_EMPTY_ROOT(root)) { 2297 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN); 2298 return; 2299 } 2300 2301 node = rb_first(root); 2302 while (node) { 2303 double percent, percent_max = 0.0; 2304 const char *color; 2305 char *path; 2306 int i; 2307 2308 al = rb_entry(node, struct annotation_line, rb_node); 2309 for (i = 0; i < al->data_nr; i++) { 2310 percent = al->data[i].percent_sum; 2311 color = get_percent_color(percent); 2312 color_fprintf(stdout, color, " %7.2f", percent); 2313 2314 if (percent > percent_max) 2315 percent_max = percent; 2316 } 2317 2318 path = al->path; 2319 color = get_percent_color(percent_max); 2320 color_fprintf(stdout, color, " %s\n", path); 2321 2322 node = rb_next(node); 2323 } 2324 } 2325 2326 static void symbol__annotate_hits(struct symbol *sym, struct evsel *evsel) 2327 { 2328 struct annotation *notes = symbol__annotation(sym); 2329 struct sym_hist *h = annotation__histogram(notes, evsel->idx); 2330 u64 len = symbol__size(sym), offset; 2331 2332 for (offset = 0; offset < len; ++offset) 2333 if (h->addr[offset].nr_samples != 0) 2334 printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2, 2335 sym->start + offset, h->addr[offset].nr_samples); 2336 printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->nr_samples", h->nr_samples); 2337 } 2338 2339 static int annotated_source__addr_fmt_width(struct list_head *lines, u64 start) 2340 { 2341 char bf[32]; 2342 struct annotation_line *line; 2343 2344 list_for_each_entry_reverse(line, lines, node) { 2345 if (line->offset != -1) 2346 return scnprintf(bf, sizeof(bf), "%" PRIx64, start + line->offset); 2347 } 2348 2349 return 0; 2350 } 2351 2352 int symbol__annotate_printf(struct map_symbol *ms, struct evsel *evsel, 2353 struct annotation_options *opts) 2354 { 2355 struct map *map = ms->map; 2356 struct symbol *sym = ms->sym; 2357 struct dso *dso = map->dso; 2358 char *filename; 2359 const char *d_filename; 2360 const char *evsel_name = evsel__name(evsel); 2361 struct annotation *notes = symbol__annotation(sym); 2362 struct sym_hist *h = annotation__histogram(notes, evsel->idx); 2363 struct annotation_line *pos, *queue = NULL; 2364 u64 start = map__rip_2objdump(map, sym->start); 2365 int printed = 2, queue_len = 0, addr_fmt_width; 2366 int more = 0; 2367 bool context = opts->context; 2368 u64 len; 2369 int width = symbol_conf.show_total_period ? 12 : 8; 2370 int graph_dotted_len; 2371 char buf[512]; 2372 2373 filename = strdup(dso->long_name); 2374 if (!filename) 2375 return -ENOMEM; 2376 2377 if (opts->full_path) 2378 d_filename = filename; 2379 else 2380 d_filename = basename(filename); 2381 2382 len = symbol__size(sym); 2383 2384 if (evsel__is_group_event(evsel)) { 2385 width *= evsel->core.nr_members; 2386 evsel__group_desc(evsel, buf, sizeof(buf)); 2387 evsel_name = buf; 2388 } 2389 2390 graph_dotted_len = printf(" %-*.*s| Source code & Disassembly of %s for %s (%" PRIu64 " samples, " 2391 "percent: %s)\n", 2392 width, width, symbol_conf.show_total_period ? "Period" : 2393 symbol_conf.show_nr_samples ? "Samples" : "Percent", 2394 d_filename, evsel_name, h->nr_samples, 2395 percent_type_str(opts->percent_type)); 2396 2397 printf("%-*.*s----\n", 2398 graph_dotted_len, graph_dotted_len, graph_dotted_line); 2399 2400 if (verbose > 0) 2401 symbol__annotate_hits(sym, evsel); 2402 2403 addr_fmt_width = annotated_source__addr_fmt_width(¬es->src->source, start); 2404 2405 list_for_each_entry(pos, ¬es->src->source, node) { 2406 int err; 2407 2408 if (context && queue == NULL) { 2409 queue = pos; 2410 queue_len = 0; 2411 } 2412 2413 err = annotation_line__print(pos, sym, start, evsel, len, 2414 opts->min_pcnt, printed, opts->max_lines, 2415 queue, addr_fmt_width, opts->percent_type); 2416 2417 switch (err) { 2418 case 0: 2419 ++printed; 2420 if (context) { 2421 printed += queue_len; 2422 queue = NULL; 2423 queue_len = 0; 2424 } 2425 break; 2426 case 1: 2427 /* filtered by max_lines */ 2428 ++more; 2429 break; 2430 case -1: 2431 default: 2432 /* 2433 * Filtered by min_pcnt or non IP lines when 2434 * context != 0 2435 */ 2436 if (!context) 2437 break; 2438 if (queue_len == context) 2439 queue = list_entry(queue->node.next, typeof(*queue), node); 2440 else 2441 ++queue_len; 2442 break; 2443 } 2444 } 2445 2446 free(filename); 2447 2448 return more; 2449 } 2450 2451 static void FILE__set_percent_color(void *fp __maybe_unused, 2452 double percent __maybe_unused, 2453 bool current __maybe_unused) 2454 { 2455 } 2456 2457 static int FILE__set_jumps_percent_color(void *fp __maybe_unused, 2458 int nr __maybe_unused, bool current __maybe_unused) 2459 { 2460 return 0; 2461 } 2462 2463 static int FILE__set_color(void *fp __maybe_unused, int color __maybe_unused) 2464 { 2465 return 0; 2466 } 2467 2468 static void FILE__printf(void *fp, const char *fmt, ...) 2469 { 2470 va_list args; 2471 2472 va_start(args, fmt); 2473 vfprintf(fp, fmt, args); 2474 va_end(args); 2475 } 2476 2477 static void FILE__write_graph(void *fp, int graph) 2478 { 2479 const char *s; 2480 switch (graph) { 2481 2482 case DARROW_CHAR: s = "↓"; break; 2483 case UARROW_CHAR: s = "↑"; break; 2484 case LARROW_CHAR: s = "←"; break; 2485 case RARROW_CHAR: s = "→"; break; 2486 default: s = "?"; break; 2487 } 2488 2489 fputs(s, fp); 2490 } 2491 2492 static int symbol__annotate_fprintf2(struct symbol *sym, FILE *fp, 2493 struct annotation_options *opts) 2494 { 2495 struct annotation *notes = symbol__annotation(sym); 2496 struct annotation_write_ops wops = { 2497 .first_line = true, 2498 .obj = fp, 2499 .set_color = FILE__set_color, 2500 .set_percent_color = FILE__set_percent_color, 2501 .set_jumps_percent_color = FILE__set_jumps_percent_color, 2502 .printf = FILE__printf, 2503 .write_graph = FILE__write_graph, 2504 }; 2505 struct annotation_line *al; 2506 2507 list_for_each_entry(al, ¬es->src->source, node) { 2508 if (annotation_line__filter(al, notes)) 2509 continue; 2510 annotation_line__write(al, notes, &wops, opts); 2511 fputc('\n', fp); 2512 wops.first_line = false; 2513 } 2514 2515 return 0; 2516 } 2517 2518 int map_symbol__annotation_dump(struct map_symbol *ms, struct evsel *evsel, 2519 struct annotation_options *opts) 2520 { 2521 const char *ev_name = evsel__name(evsel); 2522 char buf[1024]; 2523 char *filename; 2524 int err = -1; 2525 FILE *fp; 2526 2527 if (asprintf(&filename, "%s.annotation", ms->sym->name) < 0) 2528 return -1; 2529 2530 fp = fopen(filename, "w"); 2531 if (fp == NULL) 2532 goto out_free_filename; 2533 2534 if (evsel__is_group_event(evsel)) { 2535 evsel__group_desc(evsel, buf, sizeof(buf)); 2536 ev_name = buf; 2537 } 2538 2539 fprintf(fp, "%s() %s\nEvent: %s\n\n", 2540 ms->sym->name, ms->map->dso->long_name, ev_name); 2541 symbol__annotate_fprintf2(ms->sym, fp, opts); 2542 2543 fclose(fp); 2544 err = 0; 2545 out_free_filename: 2546 free(filename); 2547 return err; 2548 } 2549 2550 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx) 2551 { 2552 struct annotation *notes = symbol__annotation(sym); 2553 struct sym_hist *h = annotation__histogram(notes, evidx); 2554 2555 memset(h, 0, notes->src->sizeof_sym_hist); 2556 } 2557 2558 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx) 2559 { 2560 struct annotation *notes = symbol__annotation(sym); 2561 struct sym_hist *h = annotation__histogram(notes, evidx); 2562 int len = symbol__size(sym), offset; 2563 2564 h->nr_samples = 0; 2565 for (offset = 0; offset < len; ++offset) { 2566 h->addr[offset].nr_samples = h->addr[offset].nr_samples * 7 / 8; 2567 h->nr_samples += h->addr[offset].nr_samples; 2568 } 2569 } 2570 2571 void annotated_source__purge(struct annotated_source *as) 2572 { 2573 struct annotation_line *al, *n; 2574 2575 list_for_each_entry_safe(al, n, &as->source, node) { 2576 list_del_init(&al->node); 2577 disasm_line__free(disasm_line(al)); 2578 } 2579 } 2580 2581 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp) 2582 { 2583 size_t printed; 2584 2585 if (dl->al.offset == -1) 2586 return fprintf(fp, "%s\n", dl->al.line); 2587 2588 printed = fprintf(fp, "%#" PRIx64 " %s", dl->al.offset, dl->ins.name); 2589 2590 if (dl->ops.raw[0] != '\0') { 2591 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ", 2592 dl->ops.raw); 2593 } 2594 2595 return printed + fprintf(fp, "\n"); 2596 } 2597 2598 size_t disasm__fprintf(struct list_head *head, FILE *fp) 2599 { 2600 struct disasm_line *pos; 2601 size_t printed = 0; 2602 2603 list_for_each_entry(pos, head, al.node) 2604 printed += disasm_line__fprintf(pos, fp); 2605 2606 return printed; 2607 } 2608 2609 bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym) 2610 { 2611 if (!dl || !dl->ins.ops || !ins__is_jump(&dl->ins) || 2612 !disasm_line__has_local_offset(dl) || dl->ops.target.offset < 0 || 2613 dl->ops.target.offset >= (s64)symbol__size(sym)) 2614 return false; 2615 2616 return true; 2617 } 2618 2619 void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym) 2620 { 2621 u64 offset, size = symbol__size(sym); 2622 2623 /* PLT symbols contain external offsets */ 2624 if (strstr(sym->name, "@plt")) 2625 return; 2626 2627 for (offset = 0; offset < size; ++offset) { 2628 struct annotation_line *al = notes->offsets[offset]; 2629 struct disasm_line *dl; 2630 2631 dl = disasm_line(al); 2632 2633 if (!disasm_line__is_valid_local_jump(dl, sym)) 2634 continue; 2635 2636 al = notes->offsets[dl->ops.target.offset]; 2637 2638 /* 2639 * FIXME: Oops, no jump target? Buggy disassembler? Or do we 2640 * have to adjust to the previous offset? 2641 */ 2642 if (al == NULL) 2643 continue; 2644 2645 if (++al->jump_sources > notes->max_jump_sources) 2646 notes->max_jump_sources = al->jump_sources; 2647 } 2648 } 2649 2650 void annotation__set_offsets(struct annotation *notes, s64 size) 2651 { 2652 struct annotation_line *al; 2653 2654 notes->max_line_len = 0; 2655 notes->nr_entries = 0; 2656 notes->nr_asm_entries = 0; 2657 2658 list_for_each_entry(al, ¬es->src->source, node) { 2659 size_t line_len = strlen(al->line); 2660 2661 if (notes->max_line_len < line_len) 2662 notes->max_line_len = line_len; 2663 al->idx = notes->nr_entries++; 2664 if (al->offset != -1) { 2665 al->idx_asm = notes->nr_asm_entries++; 2666 /* 2667 * FIXME: short term bandaid to cope with assembly 2668 * routines that comes with labels in the same column 2669 * as the address in objdump, sigh. 2670 * 2671 * E.g. copy_user_generic_unrolled 2672 */ 2673 if (al->offset < size) 2674 notes->offsets[al->offset] = al; 2675 } else 2676 al->idx_asm = -1; 2677 } 2678 } 2679 2680 static inline int width_jumps(int n) 2681 { 2682 if (n >= 100) 2683 return 5; 2684 if (n / 10) 2685 return 2; 2686 return 1; 2687 } 2688 2689 static int annotation__max_ins_name(struct annotation *notes) 2690 { 2691 int max_name = 0, len; 2692 struct annotation_line *al; 2693 2694 list_for_each_entry(al, ¬es->src->source, node) { 2695 if (al->offset == -1) 2696 continue; 2697 2698 len = strlen(disasm_line(al)->ins.name); 2699 if (max_name < len) 2700 max_name = len; 2701 } 2702 2703 return max_name; 2704 } 2705 2706 void annotation__init_column_widths(struct annotation *notes, struct symbol *sym) 2707 { 2708 notes->widths.addr = notes->widths.target = 2709 notes->widths.min_addr = hex_width(symbol__size(sym)); 2710 notes->widths.max_addr = hex_width(sym->end); 2711 notes->widths.jumps = width_jumps(notes->max_jump_sources); 2712 notes->widths.max_ins_name = annotation__max_ins_name(notes); 2713 } 2714 2715 void annotation__update_column_widths(struct annotation *notes) 2716 { 2717 if (notes->options->use_offset) 2718 notes->widths.target = notes->widths.min_addr; 2719 else 2720 notes->widths.target = notes->widths.max_addr; 2721 2722 notes->widths.addr = notes->widths.target; 2723 2724 if (notes->options->show_nr_jumps) 2725 notes->widths.addr += notes->widths.jumps + 1; 2726 } 2727 2728 static void annotation__calc_lines(struct annotation *notes, struct map *map, 2729 struct rb_root *root, 2730 struct annotation_options *opts) 2731 { 2732 struct annotation_line *al; 2733 struct rb_root tmp_root = RB_ROOT; 2734 2735 list_for_each_entry(al, ¬es->src->source, node) { 2736 double percent_max = 0.0; 2737 int i; 2738 2739 for (i = 0; i < al->data_nr; i++) { 2740 double percent; 2741 2742 percent = annotation_data__percent(&al->data[i], 2743 opts->percent_type); 2744 2745 if (percent > percent_max) 2746 percent_max = percent; 2747 } 2748 2749 if (percent_max <= 0.5) 2750 continue; 2751 2752 al->path = get_srcline(map->dso, notes->start + al->offset, NULL, 2753 false, true, notes->start + al->offset); 2754 insert_source_line(&tmp_root, al, opts); 2755 } 2756 2757 resort_source_line(root, &tmp_root); 2758 } 2759 2760 static void symbol__calc_lines(struct map_symbol *ms, struct rb_root *root, 2761 struct annotation_options *opts) 2762 { 2763 struct annotation *notes = symbol__annotation(ms->sym); 2764 2765 annotation__calc_lines(notes, ms->map, root, opts); 2766 } 2767 2768 int symbol__tty_annotate2(struct map_symbol *ms, struct evsel *evsel, 2769 struct annotation_options *opts) 2770 { 2771 struct dso *dso = ms->map->dso; 2772 struct symbol *sym = ms->sym; 2773 struct rb_root source_line = RB_ROOT; 2774 struct hists *hists = evsel__hists(evsel); 2775 char buf[1024]; 2776 2777 if (symbol__annotate2(ms, evsel, opts, NULL) < 0) 2778 return -1; 2779 2780 if (opts->print_lines) { 2781 srcline_full_filename = opts->full_path; 2782 symbol__calc_lines(ms, &source_line, opts); 2783 print_summary(&source_line, dso->long_name); 2784 } 2785 2786 hists__scnprintf_title(hists, buf, sizeof(buf)); 2787 fprintf(stdout, "%s, [percent: %s]\n%s() %s\n", 2788 buf, percent_type_str(opts->percent_type), sym->name, dso->long_name); 2789 symbol__annotate_fprintf2(sym, stdout, opts); 2790 2791 annotated_source__purge(symbol__annotation(sym)->src); 2792 2793 return 0; 2794 } 2795 2796 int symbol__tty_annotate(struct map_symbol *ms, struct evsel *evsel, 2797 struct annotation_options *opts) 2798 { 2799 struct dso *dso = ms->map->dso; 2800 struct symbol *sym = ms->sym; 2801 struct rb_root source_line = RB_ROOT; 2802 2803 if (symbol__annotate(ms, evsel, opts, NULL) < 0) 2804 return -1; 2805 2806 symbol__calc_percent(sym, evsel); 2807 2808 if (opts->print_lines) { 2809 srcline_full_filename = opts->full_path; 2810 symbol__calc_lines(ms, &source_line, opts); 2811 print_summary(&source_line, dso->long_name); 2812 } 2813 2814 symbol__annotate_printf(ms, evsel, opts); 2815 2816 annotated_source__purge(symbol__annotation(sym)->src); 2817 2818 return 0; 2819 } 2820 2821 bool ui__has_annotation(void) 2822 { 2823 return use_browser == 1 && perf_hpp_list.sym; 2824 } 2825 2826 2827 static double annotation_line__max_percent(struct annotation_line *al, 2828 struct annotation *notes, 2829 unsigned int percent_type) 2830 { 2831 double percent_max = 0.0; 2832 int i; 2833 2834 for (i = 0; i < notes->nr_events; i++) { 2835 double percent; 2836 2837 percent = annotation_data__percent(&al->data[i], 2838 percent_type); 2839 2840 if (percent > percent_max) 2841 percent_max = percent; 2842 } 2843 2844 return percent_max; 2845 } 2846 2847 static void disasm_line__write(struct disasm_line *dl, struct annotation *notes, 2848 void *obj, char *bf, size_t size, 2849 void (*obj__printf)(void *obj, const char *fmt, ...), 2850 void (*obj__write_graph)(void *obj, int graph)) 2851 { 2852 if (dl->ins.ops && dl->ins.ops->scnprintf) { 2853 if (ins__is_jump(&dl->ins)) { 2854 bool fwd; 2855 2856 if (dl->ops.target.outside) 2857 goto call_like; 2858 fwd = dl->ops.target.offset > dl->al.offset; 2859 obj__write_graph(obj, fwd ? DARROW_CHAR : UARROW_CHAR); 2860 obj__printf(obj, " "); 2861 } else if (ins__is_call(&dl->ins)) { 2862 call_like: 2863 obj__write_graph(obj, RARROW_CHAR); 2864 obj__printf(obj, " "); 2865 } else if (ins__is_ret(&dl->ins)) { 2866 obj__write_graph(obj, LARROW_CHAR); 2867 obj__printf(obj, " "); 2868 } else { 2869 obj__printf(obj, " "); 2870 } 2871 } else { 2872 obj__printf(obj, " "); 2873 } 2874 2875 disasm_line__scnprintf(dl, bf, size, !notes->options->use_offset, notes->widths.max_ins_name); 2876 } 2877 2878 static void ipc_coverage_string(char *bf, int size, struct annotation *notes) 2879 { 2880 double ipc = 0.0, coverage = 0.0; 2881 2882 if (notes->hit_cycles) 2883 ipc = notes->hit_insn / ((double)notes->hit_cycles); 2884 2885 if (notes->total_insn) { 2886 coverage = notes->cover_insn * 100.0 / 2887 ((double)notes->total_insn); 2888 } 2889 2890 scnprintf(bf, size, "(Average IPC: %.2f, IPC Coverage: %.1f%%)", 2891 ipc, coverage); 2892 } 2893 2894 static void __annotation_line__write(struct annotation_line *al, struct annotation *notes, 2895 bool first_line, bool current_entry, bool change_color, int width, 2896 void *obj, unsigned int percent_type, 2897 int (*obj__set_color)(void *obj, int color), 2898 void (*obj__set_percent_color)(void *obj, double percent, bool current), 2899 int (*obj__set_jumps_percent_color)(void *obj, int nr, bool current), 2900 void (*obj__printf)(void *obj, const char *fmt, ...), 2901 void (*obj__write_graph)(void *obj, int graph)) 2902 2903 { 2904 double percent_max = annotation_line__max_percent(al, notes, percent_type); 2905 int pcnt_width = annotation__pcnt_width(notes), 2906 cycles_width = annotation__cycles_width(notes); 2907 bool show_title = false; 2908 char bf[256]; 2909 int printed; 2910 2911 if (first_line && (al->offset == -1 || percent_max == 0.0)) { 2912 if (notes->have_cycles) { 2913 if (al->ipc == 0.0 && al->cycles == 0) 2914 show_title = true; 2915 } else 2916 show_title = true; 2917 } 2918 2919 if (al->offset != -1 && percent_max != 0.0) { 2920 int i; 2921 2922 for (i = 0; i < notes->nr_events; i++) { 2923 double percent; 2924 2925 percent = annotation_data__percent(&al->data[i], percent_type); 2926 2927 obj__set_percent_color(obj, percent, current_entry); 2928 if (symbol_conf.show_total_period) { 2929 obj__printf(obj, "%11" PRIu64 " ", al->data[i].he.period); 2930 } else if (symbol_conf.show_nr_samples) { 2931 obj__printf(obj, "%6" PRIu64 " ", 2932 al->data[i].he.nr_samples); 2933 } else { 2934 obj__printf(obj, "%6.2f ", percent); 2935 } 2936 } 2937 } else { 2938 obj__set_percent_color(obj, 0, current_entry); 2939 2940 if (!show_title) 2941 obj__printf(obj, "%-*s", pcnt_width, " "); 2942 else { 2943 obj__printf(obj, "%-*s", pcnt_width, 2944 symbol_conf.show_total_period ? "Period" : 2945 symbol_conf.show_nr_samples ? "Samples" : "Percent"); 2946 } 2947 } 2948 2949 if (notes->have_cycles) { 2950 if (al->ipc) 2951 obj__printf(obj, "%*.2f ", ANNOTATION__IPC_WIDTH - 1, al->ipc); 2952 else if (!show_title) 2953 obj__printf(obj, "%*s", ANNOTATION__IPC_WIDTH, " "); 2954 else 2955 obj__printf(obj, "%*s ", ANNOTATION__IPC_WIDTH - 1, "IPC"); 2956 2957 if (!notes->options->show_minmax_cycle) { 2958 if (al->cycles) 2959 obj__printf(obj, "%*" PRIu64 " ", 2960 ANNOTATION__CYCLES_WIDTH - 1, al->cycles); 2961 else if (!show_title) 2962 obj__printf(obj, "%*s", 2963 ANNOTATION__CYCLES_WIDTH, " "); 2964 else 2965 obj__printf(obj, "%*s ", 2966 ANNOTATION__CYCLES_WIDTH - 1, 2967 "Cycle"); 2968 } else { 2969 if (al->cycles) { 2970 char str[32]; 2971 2972 scnprintf(str, sizeof(str), 2973 "%" PRIu64 "(%" PRIu64 "/%" PRIu64 ")", 2974 al->cycles, al->cycles_min, 2975 al->cycles_max); 2976 2977 obj__printf(obj, "%*s ", 2978 ANNOTATION__MINMAX_CYCLES_WIDTH - 1, 2979 str); 2980 } else if (!show_title) 2981 obj__printf(obj, "%*s", 2982 ANNOTATION__MINMAX_CYCLES_WIDTH, 2983 " "); 2984 else 2985 obj__printf(obj, "%*s ", 2986 ANNOTATION__MINMAX_CYCLES_WIDTH - 1, 2987 "Cycle(min/max)"); 2988 } 2989 2990 if (show_title && !*al->line) { 2991 ipc_coverage_string(bf, sizeof(bf), notes); 2992 obj__printf(obj, "%*s", ANNOTATION__AVG_IPC_WIDTH, bf); 2993 } 2994 } 2995 2996 obj__printf(obj, " "); 2997 2998 if (!*al->line) 2999 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width, " "); 3000 else if (al->offset == -1) { 3001 if (al->line_nr && notes->options->show_linenr) 3002 printed = scnprintf(bf, sizeof(bf), "%-*d ", notes->widths.addr + 1, al->line_nr); 3003 else 3004 printed = scnprintf(bf, sizeof(bf), "%-*s ", notes->widths.addr, " "); 3005 obj__printf(obj, bf); 3006 obj__printf(obj, "%-*s", width - printed - pcnt_width - cycles_width + 1, al->line); 3007 } else { 3008 u64 addr = al->offset; 3009 int color = -1; 3010 3011 if (!notes->options->use_offset) 3012 addr += notes->start; 3013 3014 if (!notes->options->use_offset) { 3015 printed = scnprintf(bf, sizeof(bf), "%" PRIx64 ": ", addr); 3016 } else { 3017 if (al->jump_sources && 3018 notes->options->offset_level >= ANNOTATION__OFFSET_JUMP_TARGETS) { 3019 if (notes->options->show_nr_jumps) { 3020 int prev; 3021 printed = scnprintf(bf, sizeof(bf), "%*d ", 3022 notes->widths.jumps, 3023 al->jump_sources); 3024 prev = obj__set_jumps_percent_color(obj, al->jump_sources, 3025 current_entry); 3026 obj__printf(obj, bf); 3027 obj__set_color(obj, prev); 3028 } 3029 print_addr: 3030 printed = scnprintf(bf, sizeof(bf), "%*" PRIx64 ": ", 3031 notes->widths.target, addr); 3032 } else if (ins__is_call(&disasm_line(al)->ins) && 3033 notes->options->offset_level >= ANNOTATION__OFFSET_CALL) { 3034 goto print_addr; 3035 } else if (notes->options->offset_level == ANNOTATION__MAX_OFFSET_LEVEL) { 3036 goto print_addr; 3037 } else { 3038 printed = scnprintf(bf, sizeof(bf), "%-*s ", 3039 notes->widths.addr, " "); 3040 } 3041 } 3042 3043 if (change_color) 3044 color = obj__set_color(obj, HE_COLORSET_ADDR); 3045 obj__printf(obj, bf); 3046 if (change_color) 3047 obj__set_color(obj, color); 3048 3049 disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf), obj__printf, obj__write_graph); 3050 3051 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width - 3 - printed, bf); 3052 } 3053 3054 } 3055 3056 void annotation_line__write(struct annotation_line *al, struct annotation *notes, 3057 struct annotation_write_ops *wops, 3058 struct annotation_options *opts) 3059 { 3060 __annotation_line__write(al, notes, wops->first_line, wops->current_entry, 3061 wops->change_color, wops->width, wops->obj, 3062 opts->percent_type, 3063 wops->set_color, wops->set_percent_color, 3064 wops->set_jumps_percent_color, wops->printf, 3065 wops->write_graph); 3066 } 3067 3068 int symbol__annotate2(struct map_symbol *ms, struct evsel *evsel, 3069 struct annotation_options *options, struct arch **parch) 3070 { 3071 struct symbol *sym = ms->sym; 3072 struct annotation *notes = symbol__annotation(sym); 3073 size_t size = symbol__size(sym); 3074 int nr_pcnt = 1, err; 3075 3076 notes->offsets = zalloc(size * sizeof(struct annotation_line *)); 3077 if (notes->offsets == NULL) 3078 return ENOMEM; 3079 3080 if (evsel__is_group_event(evsel)) 3081 nr_pcnt = evsel->core.nr_members; 3082 3083 err = symbol__annotate(ms, evsel, options, parch); 3084 if (err) 3085 goto out_free_offsets; 3086 3087 notes->options = options; 3088 3089 symbol__calc_percent(sym, evsel); 3090 3091 annotation__set_offsets(notes, size); 3092 annotation__mark_jump_targets(notes, sym); 3093 annotation__compute_ipc(notes, size); 3094 annotation__init_column_widths(notes, sym); 3095 notes->nr_events = nr_pcnt; 3096 3097 annotation__update_column_widths(notes); 3098 sym->annotate2 = true; 3099 3100 return 0; 3101 3102 out_free_offsets: 3103 zfree(¬es->offsets); 3104 return err; 3105 } 3106 3107 static int annotation__config(const char *var, const char *value, void *data) 3108 { 3109 struct annotation_options *opt = data; 3110 3111 if (!strstarts(var, "annotate.")) 3112 return 0; 3113 3114 if (!strcmp(var, "annotate.offset_level")) { 3115 perf_config_u8(&opt->offset_level, "offset_level", value); 3116 3117 if (opt->offset_level > ANNOTATION__MAX_OFFSET_LEVEL) 3118 opt->offset_level = ANNOTATION__MAX_OFFSET_LEVEL; 3119 else if (opt->offset_level < ANNOTATION__MIN_OFFSET_LEVEL) 3120 opt->offset_level = ANNOTATION__MIN_OFFSET_LEVEL; 3121 } else if (!strcmp(var, "annotate.hide_src_code")) { 3122 opt->hide_src_code = perf_config_bool("hide_src_code", value); 3123 } else if (!strcmp(var, "annotate.jump_arrows")) { 3124 opt->jump_arrows = perf_config_bool("jump_arrows", value); 3125 } else if (!strcmp(var, "annotate.show_linenr")) { 3126 opt->show_linenr = perf_config_bool("show_linenr", value); 3127 } else if (!strcmp(var, "annotate.show_nr_jumps")) { 3128 opt->show_nr_jumps = perf_config_bool("show_nr_jumps", value); 3129 } else if (!strcmp(var, "annotate.show_nr_samples")) { 3130 symbol_conf.show_nr_samples = perf_config_bool("show_nr_samples", 3131 value); 3132 } else if (!strcmp(var, "annotate.show_total_period")) { 3133 symbol_conf.show_total_period = perf_config_bool("show_total_period", 3134 value); 3135 } else if (!strcmp(var, "annotate.use_offset")) { 3136 opt->use_offset = perf_config_bool("use_offset", value); 3137 } else if (!strcmp(var, "annotate.disassembler_style")) { 3138 opt->disassembler_style = value; 3139 } else { 3140 pr_debug("%s variable unknown, ignoring...", var); 3141 } 3142 3143 return 0; 3144 } 3145 3146 void annotation_config__init(struct annotation_options *opt) 3147 { 3148 perf_config(annotation__config, opt); 3149 } 3150 3151 static unsigned int parse_percent_type(char *str1, char *str2) 3152 { 3153 unsigned int type = (unsigned int) -1; 3154 3155 if (!strcmp("period", str1)) { 3156 if (!strcmp("local", str2)) 3157 type = PERCENT_PERIOD_LOCAL; 3158 else if (!strcmp("global", str2)) 3159 type = PERCENT_PERIOD_GLOBAL; 3160 } 3161 3162 if (!strcmp("hits", str1)) { 3163 if (!strcmp("local", str2)) 3164 type = PERCENT_HITS_LOCAL; 3165 else if (!strcmp("global", str2)) 3166 type = PERCENT_HITS_GLOBAL; 3167 } 3168 3169 return type; 3170 } 3171 3172 int annotate_parse_percent_type(const struct option *opt, const char *_str, 3173 int unset __maybe_unused) 3174 { 3175 struct annotation_options *opts = opt->value; 3176 unsigned int type; 3177 char *str1, *str2; 3178 int err = -1; 3179 3180 str1 = strdup(_str); 3181 if (!str1) 3182 return -ENOMEM; 3183 3184 str2 = strchr(str1, '-'); 3185 if (!str2) 3186 goto out; 3187 3188 *str2++ = 0; 3189 3190 type = parse_percent_type(str1, str2); 3191 if (type == (unsigned int) -1) 3192 type = parse_percent_type(str2, str1); 3193 if (type != (unsigned int) -1) { 3194 opts->percent_type = type; 3195 err = 0; 3196 } 3197 3198 out: 3199 free(str1); 3200 return err; 3201 } 3202 3203 int annotate_check_args(struct annotation_options *args) 3204 { 3205 if (args->prefix_strip && !args->prefix) { 3206 pr_err("--prefix-strip requires --prefix\n"); 3207 return -1; 3208 } 3209 return 0; 3210 } 3211