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Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
[mirror_ubuntu-artful-kernel.git] / tools / perf / util / annotate.c
1 /*
2 * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
3 *
4 * Parts came from builtin-annotate.c, see those files for further
5 * copyright notes.
6 *
7 * Released under the GPL v2. (and only v2, not any later version)
8 */
9
10 #include "util.h"
11 #include "ui/ui.h"
12 #include "sort.h"
13 #include "build-id.h"
14 #include "color.h"
15 #include "cache.h"
16 #include "symbol.h"
17 #include "debug.h"
18 #include "annotate.h"
19 #include "evsel.h"
20 #include <regex.h>
21 #include <pthread.h>
22 #include <linux/bitops.h>
23
24 const char *disassembler_style;
25 const char *objdump_path;
26 static regex_t file_lineno;
27
28 static struct ins *ins__find(const char *name);
29 static int disasm_line__parse(char *line, char **namep, char **rawp);
30
31 static void ins__delete(struct ins_operands *ops)
32 {
33 if (ops == NULL)
34 return;
35 zfree(&ops->source.raw);
36 zfree(&ops->source.name);
37 zfree(&ops->target.raw);
38 zfree(&ops->target.name);
39 }
40
41 static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size,
42 struct ins_operands *ops)
43 {
44 return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->raw);
45 }
46
47 int ins__scnprintf(struct ins *ins, char *bf, size_t size,
48 struct ins_operands *ops)
49 {
50 if (ins->ops->scnprintf)
51 return ins->ops->scnprintf(ins, bf, size, ops);
52
53 return ins__raw_scnprintf(ins, bf, size, ops);
54 }
55
56 static int call__parse(struct ins_operands *ops)
57 {
58 char *endptr, *tok, *name;
59
60 ops->target.addr = strtoull(ops->raw, &endptr, 16);
61
62 name = strchr(endptr, '<');
63 if (name == NULL)
64 goto indirect_call;
65
66 name++;
67
68 #ifdef __arm__
69 if (strchr(name, '+'))
70 return -1;
71 #endif
72
73 tok = strchr(name, '>');
74 if (tok == NULL)
75 return -1;
76
77 *tok = '\0';
78 ops->target.name = strdup(name);
79 *tok = '>';
80
81 return ops->target.name == NULL ? -1 : 0;
82
83 indirect_call:
84 tok = strchr(endptr, '(');
85 if (tok != NULL) {
86 ops->target.addr = 0;
87 return 0;
88 }
89
90 tok = strchr(endptr, '*');
91 if (tok == NULL)
92 return -1;
93
94 ops->target.addr = strtoull(tok + 1, NULL, 16);
95 return 0;
96 }
97
98 static int call__scnprintf(struct ins *ins, char *bf, size_t size,
99 struct ins_operands *ops)
100 {
101 if (ops->target.name)
102 return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->target.name);
103
104 if (ops->target.addr == 0)
105 return ins__raw_scnprintf(ins, bf, size, ops);
106
107 return scnprintf(bf, size, "%-6.6s *%" PRIx64, ins->name, ops->target.addr);
108 }
109
110 static struct ins_ops call_ops = {
111 .parse = call__parse,
112 .scnprintf = call__scnprintf,
113 };
114
115 bool ins__is_call(const struct ins *ins)
116 {
117 return ins->ops == &call_ops;
118 }
119
120 static int jump__parse(struct ins_operands *ops)
121 {
122 const char *s = strchr(ops->raw, '+');
123
124 ops->target.addr = strtoull(ops->raw, NULL, 16);
125
126 if (s++ != NULL)
127 ops->target.offset = strtoull(s, NULL, 16);
128 else
129 ops->target.offset = UINT64_MAX;
130
131 return 0;
132 }
133
134 static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
135 struct ins_operands *ops)
136 {
137 return scnprintf(bf, size, "%-6.6s %" PRIx64, ins->name, ops->target.offset);
138 }
139
140 static struct ins_ops jump_ops = {
141 .parse = jump__parse,
142 .scnprintf = jump__scnprintf,
143 };
144
145 bool ins__is_jump(const struct ins *ins)
146 {
147 return ins->ops == &jump_ops;
148 }
149
150 static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep)
151 {
152 char *endptr, *name, *t;
153
154 if (strstr(raw, "(%rip)") == NULL)
155 return 0;
156
157 *addrp = strtoull(comment, &endptr, 16);
158 name = strchr(endptr, '<');
159 if (name == NULL)
160 return -1;
161
162 name++;
163
164 t = strchr(name, '>');
165 if (t == NULL)
166 return 0;
167
168 *t = '\0';
169 *namep = strdup(name);
170 *t = '>';
171
172 return 0;
173 }
174
175 static int lock__parse(struct ins_operands *ops)
176 {
177 char *name;
178
179 ops->locked.ops = zalloc(sizeof(*ops->locked.ops));
180 if (ops->locked.ops == NULL)
181 return 0;
182
183 if (disasm_line__parse(ops->raw, &name, &ops->locked.ops->raw) < 0)
184 goto out_free_ops;
185
186 ops->locked.ins = ins__find(name);
187 free(name);
188
189 if (ops->locked.ins == NULL)
190 goto out_free_ops;
191
192 if (!ops->locked.ins->ops)
193 return 0;
194
195 if (ops->locked.ins->ops->parse &&
196 ops->locked.ins->ops->parse(ops->locked.ops) < 0)
197 goto out_free_ops;
198
199 return 0;
200
201 out_free_ops:
202 zfree(&ops->locked.ops);
203 return 0;
204 }
205
206 static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
207 struct ins_operands *ops)
208 {
209 int printed;
210
211 if (ops->locked.ins == NULL)
212 return ins__raw_scnprintf(ins, bf, size, ops);
213
214 printed = scnprintf(bf, size, "%-6.6s ", ins->name);
215 return printed + ins__scnprintf(ops->locked.ins, bf + printed,
216 size - printed, ops->locked.ops);
217 }
218
219 static void lock__delete(struct ins_operands *ops)
220 {
221 struct ins *ins = ops->locked.ins;
222
223 if (ins && ins->ops->free)
224 ins->ops->free(ops->locked.ops);
225 else
226 ins__delete(ops->locked.ops);
227
228 zfree(&ops->locked.ops);
229 zfree(&ops->target.raw);
230 zfree(&ops->target.name);
231 }
232
233 static struct ins_ops lock_ops = {
234 .free = lock__delete,
235 .parse = lock__parse,
236 .scnprintf = lock__scnprintf,
237 };
238
239 static int mov__parse(struct ins_operands *ops)
240 {
241 char *s = strchr(ops->raw, ','), *target, *comment, prev;
242
243 if (s == NULL)
244 return -1;
245
246 *s = '\0';
247 ops->source.raw = strdup(ops->raw);
248 *s = ',';
249
250 if (ops->source.raw == NULL)
251 return -1;
252
253 target = ++s;
254 #ifdef __arm__
255 comment = strchr(s, ';');
256 #else
257 comment = strchr(s, '#');
258 #endif
259
260 if (comment != NULL)
261 s = comment - 1;
262 else
263 s = strchr(s, '\0') - 1;
264
265 while (s > target && isspace(s[0]))
266 --s;
267 s++;
268 prev = *s;
269 *s = '\0';
270
271 ops->target.raw = strdup(target);
272 *s = prev;
273
274 if (ops->target.raw == NULL)
275 goto out_free_source;
276
277 if (comment == NULL)
278 return 0;
279
280 while (comment[0] != '\0' && isspace(comment[0]))
281 ++comment;
282
283 comment__symbol(ops->source.raw, comment, &ops->source.addr, &ops->source.name);
284 comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);
285
286 return 0;
287
288 out_free_source:
289 zfree(&ops->source.raw);
290 return -1;
291 }
292
293 static int mov__scnprintf(struct ins *ins, char *bf, size_t size,
294 struct ins_operands *ops)
295 {
296 return scnprintf(bf, size, "%-6.6s %s,%s", ins->name,
297 ops->source.name ?: ops->source.raw,
298 ops->target.name ?: ops->target.raw);
299 }
300
301 static struct ins_ops mov_ops = {
302 .parse = mov__parse,
303 .scnprintf = mov__scnprintf,
304 };
305
306 static int dec__parse(struct ins_operands *ops)
307 {
308 char *target, *comment, *s, prev;
309
310 target = s = ops->raw;
311
312 while (s[0] != '\0' && !isspace(s[0]))
313 ++s;
314 prev = *s;
315 *s = '\0';
316
317 ops->target.raw = strdup(target);
318 *s = prev;
319
320 if (ops->target.raw == NULL)
321 return -1;
322
323 comment = strchr(s, '#');
324 if (comment == NULL)
325 return 0;
326
327 while (comment[0] != '\0' && isspace(comment[0]))
328 ++comment;
329
330 comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);
331
332 return 0;
333 }
334
335 static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
336 struct ins_operands *ops)
337 {
338 return scnprintf(bf, size, "%-6.6s %s", ins->name,
339 ops->target.name ?: ops->target.raw);
340 }
341
342 static struct ins_ops dec_ops = {
343 .parse = dec__parse,
344 .scnprintf = dec__scnprintf,
345 };
346
347 static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size,
348 struct ins_operands *ops __maybe_unused)
349 {
350 return scnprintf(bf, size, "%-6.6s", "nop");
351 }
352
353 static struct ins_ops nop_ops = {
354 .scnprintf = nop__scnprintf,
355 };
356
357 static struct ins_ops ret_ops = {
358 .scnprintf = ins__raw_scnprintf,
359 };
360
361 bool ins__is_ret(const struct ins *ins)
362 {
363 return ins->ops == &ret_ops;
364 }
365
366 static struct ins instructions[] = {
367 { .name = "add", .ops = &mov_ops, },
368 { .name = "addl", .ops = &mov_ops, },
369 { .name = "addq", .ops = &mov_ops, },
370 { .name = "addw", .ops = &mov_ops, },
371 { .name = "and", .ops = &mov_ops, },
372 #ifdef __arm__
373 { .name = "b", .ops = &jump_ops, }, // might also be a call
374 { .name = "bcc", .ops = &jump_ops, },
375 { .name = "bcs", .ops = &jump_ops, },
376 { .name = "beq", .ops = &jump_ops, },
377 { .name = "bge", .ops = &jump_ops, },
378 { .name = "bgt", .ops = &jump_ops, },
379 { .name = "bhi", .ops = &jump_ops, },
380 { .name = "bl", .ops = &call_ops, },
381 { .name = "bls", .ops = &jump_ops, },
382 { .name = "blt", .ops = &jump_ops, },
383 { .name = "blx", .ops = &call_ops, },
384 { .name = "bne", .ops = &jump_ops, },
385 #endif
386 { .name = "bts", .ops = &mov_ops, },
387 { .name = "call", .ops = &call_ops, },
388 { .name = "callq", .ops = &call_ops, },
389 { .name = "cmp", .ops = &mov_ops, },
390 { .name = "cmpb", .ops = &mov_ops, },
391 { .name = "cmpl", .ops = &mov_ops, },
392 { .name = "cmpq", .ops = &mov_ops, },
393 { .name = "cmpw", .ops = &mov_ops, },
394 { .name = "cmpxch", .ops = &mov_ops, },
395 { .name = "dec", .ops = &dec_ops, },
396 { .name = "decl", .ops = &dec_ops, },
397 { .name = "imul", .ops = &mov_ops, },
398 { .name = "inc", .ops = &dec_ops, },
399 { .name = "incl", .ops = &dec_ops, },
400 { .name = "ja", .ops = &jump_ops, },
401 { .name = "jae", .ops = &jump_ops, },
402 { .name = "jb", .ops = &jump_ops, },
403 { .name = "jbe", .ops = &jump_ops, },
404 { .name = "jc", .ops = &jump_ops, },
405 { .name = "jcxz", .ops = &jump_ops, },
406 { .name = "je", .ops = &jump_ops, },
407 { .name = "jecxz", .ops = &jump_ops, },
408 { .name = "jg", .ops = &jump_ops, },
409 { .name = "jge", .ops = &jump_ops, },
410 { .name = "jl", .ops = &jump_ops, },
411 { .name = "jle", .ops = &jump_ops, },
412 { .name = "jmp", .ops = &jump_ops, },
413 { .name = "jmpq", .ops = &jump_ops, },
414 { .name = "jna", .ops = &jump_ops, },
415 { .name = "jnae", .ops = &jump_ops, },
416 { .name = "jnb", .ops = &jump_ops, },
417 { .name = "jnbe", .ops = &jump_ops, },
418 { .name = "jnc", .ops = &jump_ops, },
419 { .name = "jne", .ops = &jump_ops, },
420 { .name = "jng", .ops = &jump_ops, },
421 { .name = "jnge", .ops = &jump_ops, },
422 { .name = "jnl", .ops = &jump_ops, },
423 { .name = "jnle", .ops = &jump_ops, },
424 { .name = "jno", .ops = &jump_ops, },
425 { .name = "jnp", .ops = &jump_ops, },
426 { .name = "jns", .ops = &jump_ops, },
427 { .name = "jnz", .ops = &jump_ops, },
428 { .name = "jo", .ops = &jump_ops, },
429 { .name = "jp", .ops = &jump_ops, },
430 { .name = "jpe", .ops = &jump_ops, },
431 { .name = "jpo", .ops = &jump_ops, },
432 { .name = "jrcxz", .ops = &jump_ops, },
433 { .name = "js", .ops = &jump_ops, },
434 { .name = "jz", .ops = &jump_ops, },
435 { .name = "lea", .ops = &mov_ops, },
436 { .name = "lock", .ops = &lock_ops, },
437 { .name = "mov", .ops = &mov_ops, },
438 { .name = "movb", .ops = &mov_ops, },
439 { .name = "movdqa",.ops = &mov_ops, },
440 { .name = "movl", .ops = &mov_ops, },
441 { .name = "movq", .ops = &mov_ops, },
442 { .name = "movslq", .ops = &mov_ops, },
443 { .name = "movzbl", .ops = &mov_ops, },
444 { .name = "movzwl", .ops = &mov_ops, },
445 { .name = "nop", .ops = &nop_ops, },
446 { .name = "nopl", .ops = &nop_ops, },
447 { .name = "nopw", .ops = &nop_ops, },
448 { .name = "or", .ops = &mov_ops, },
449 { .name = "orl", .ops = &mov_ops, },
450 { .name = "test", .ops = &mov_ops, },
451 { .name = "testb", .ops = &mov_ops, },
452 { .name = "testl", .ops = &mov_ops, },
453 { .name = "xadd", .ops = &mov_ops, },
454 { .name = "xbeginl", .ops = &jump_ops, },
455 { .name = "xbeginq", .ops = &jump_ops, },
456 { .name = "retq", .ops = &ret_ops, },
457 };
458
459 static int ins__key_cmp(const void *name, const void *insp)
460 {
461 const struct ins *ins = insp;
462
463 return strcmp(name, ins->name);
464 }
465
466 static int ins__cmp(const void *a, const void *b)
467 {
468 const struct ins *ia = a;
469 const struct ins *ib = b;
470
471 return strcmp(ia->name, ib->name);
472 }
473
474 static void ins__sort(void)
475 {
476 const int nmemb = ARRAY_SIZE(instructions);
477
478 qsort(instructions, nmemb, sizeof(struct ins), ins__cmp);
479 }
480
481 static struct ins *ins__find(const char *name)
482 {
483 const int nmemb = ARRAY_SIZE(instructions);
484 static bool sorted;
485
486 if (!sorted) {
487 ins__sort();
488 sorted = true;
489 }
490
491 return bsearch(name, instructions, nmemb, sizeof(struct ins), ins__key_cmp);
492 }
493
494 int symbol__annotate_init(struct map *map __maybe_unused, struct symbol *sym)
495 {
496 struct annotation *notes = symbol__annotation(sym);
497 pthread_mutex_init(&notes->lock, NULL);
498 return 0;
499 }
500
501 int symbol__alloc_hist(struct symbol *sym)
502 {
503 struct annotation *notes = symbol__annotation(sym);
504 const size_t size = symbol__size(sym);
505 size_t sizeof_sym_hist;
506
507 /* Check for overflow when calculating sizeof_sym_hist */
508 if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(u64))
509 return -1;
510
511 sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(u64));
512
513 /* Check for overflow in zalloc argument */
514 if (sizeof_sym_hist > (SIZE_MAX - sizeof(*notes->src))
515 / symbol_conf.nr_events)
516 return -1;
517
518 notes->src = zalloc(sizeof(*notes->src) + symbol_conf.nr_events * sizeof_sym_hist);
519 if (notes->src == NULL)
520 return -1;
521 notes->src->sizeof_sym_hist = sizeof_sym_hist;
522 notes->src->nr_histograms = symbol_conf.nr_events;
523 INIT_LIST_HEAD(&notes->src->source);
524 return 0;
525 }
526
527 /* The cycles histogram is lazily allocated. */
528 static int symbol__alloc_hist_cycles(struct symbol *sym)
529 {
530 struct annotation *notes = symbol__annotation(sym);
531 const size_t size = symbol__size(sym);
532
533 notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist));
534 if (notes->src->cycles_hist == NULL)
535 return -1;
536 return 0;
537 }
538
539 void symbol__annotate_zero_histograms(struct symbol *sym)
540 {
541 struct annotation *notes = symbol__annotation(sym);
542
543 pthread_mutex_lock(&notes->lock);
544 if (notes->src != NULL) {
545 memset(notes->src->histograms, 0,
546 notes->src->nr_histograms * notes->src->sizeof_sym_hist);
547 if (notes->src->cycles_hist)
548 memset(notes->src->cycles_hist, 0,
549 symbol__size(sym) * sizeof(struct cyc_hist));
550 }
551 pthread_mutex_unlock(&notes->lock);
552 }
553
554 static int __symbol__account_cycles(struct annotation *notes,
555 u64 start,
556 unsigned offset, unsigned cycles,
557 unsigned have_start)
558 {
559 struct cyc_hist *ch;
560
561 ch = notes->src->cycles_hist;
562 /*
563 * For now we can only account one basic block per
564 * final jump. But multiple could be overlapping.
565 * Always account the longest one. So when
566 * a shorter one has been already seen throw it away.
567 *
568 * We separately always account the full cycles.
569 */
570 ch[offset].num_aggr++;
571 ch[offset].cycles_aggr += cycles;
572
573 if (!have_start && ch[offset].have_start)
574 return 0;
575 if (ch[offset].num) {
576 if (have_start && (!ch[offset].have_start ||
577 ch[offset].start > start)) {
578 ch[offset].have_start = 0;
579 ch[offset].cycles = 0;
580 ch[offset].num = 0;
581 if (ch[offset].reset < 0xffff)
582 ch[offset].reset++;
583 } else if (have_start &&
584 ch[offset].start < start)
585 return 0;
586 }
587 ch[offset].have_start = have_start;
588 ch[offset].start = start;
589 ch[offset].cycles += cycles;
590 ch[offset].num++;
591 return 0;
592 }
593
594 static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
595 struct annotation *notes, int evidx, u64 addr)
596 {
597 unsigned offset;
598 struct sym_hist *h;
599
600 pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr));
601
602 if (addr < sym->start || addr >= sym->end) {
603 pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n",
604 __func__, __LINE__, sym->name, sym->start, addr, sym->end);
605 return -ERANGE;
606 }
607
608 offset = addr - sym->start;
609 h = annotation__histogram(notes, evidx);
610 h->sum++;
611 h->addr[offset]++;
612
613 pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64
614 ", evidx=%d] => %" PRIu64 "\n", sym->start, sym->name,
615 addr, addr - sym->start, evidx, h->addr[offset]);
616 return 0;
617 }
618
619 static struct annotation *symbol__get_annotation(struct symbol *sym, bool cycles)
620 {
621 struct annotation *notes = symbol__annotation(sym);
622
623 if (notes->src == NULL) {
624 if (symbol__alloc_hist(sym) < 0)
625 return NULL;
626 }
627 if (!notes->src->cycles_hist && cycles) {
628 if (symbol__alloc_hist_cycles(sym) < 0)
629 return NULL;
630 }
631 return notes;
632 }
633
634 static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
635 int evidx, u64 addr)
636 {
637 struct annotation *notes;
638
639 if (sym == NULL)
640 return 0;
641 notes = symbol__get_annotation(sym, false);
642 if (notes == NULL)
643 return -ENOMEM;
644 return __symbol__inc_addr_samples(sym, map, notes, evidx, addr);
645 }
646
647 static int symbol__account_cycles(u64 addr, u64 start,
648 struct symbol *sym, unsigned cycles)
649 {
650 struct annotation *notes;
651 unsigned offset;
652
653 if (sym == NULL)
654 return 0;
655 notes = symbol__get_annotation(sym, true);
656 if (notes == NULL)
657 return -ENOMEM;
658 if (addr < sym->start || addr >= sym->end)
659 return -ERANGE;
660
661 if (start) {
662 if (start < sym->start || start >= sym->end)
663 return -ERANGE;
664 if (start >= addr)
665 start = 0;
666 }
667 offset = addr - sym->start;
668 return __symbol__account_cycles(notes,
669 start ? start - sym->start : 0,
670 offset, cycles,
671 !!start);
672 }
673
674 int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
675 struct addr_map_symbol *start,
676 unsigned cycles)
677 {
678 u64 saddr = 0;
679 int err;
680
681 if (!cycles)
682 return 0;
683
684 /*
685 * Only set start when IPC can be computed. We can only
686 * compute it when the basic block is completely in a single
687 * function.
688 * Special case the case when the jump is elsewhere, but
689 * it starts on the function start.
690 */
691 if (start &&
692 (start->sym == ams->sym ||
693 (ams->sym &&
694 start->addr == ams->sym->start + ams->map->start)))
695 saddr = start->al_addr;
696 if (saddr == 0)
697 pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n",
698 ams->addr,
699 start ? start->addr : 0,
700 ams->sym ? ams->sym->start + ams->map->start : 0,
701 saddr);
702 err = symbol__account_cycles(ams->al_addr, saddr, ams->sym, cycles);
703 if (err)
704 pr_debug2("account_cycles failed %d\n", err);
705 return err;
706 }
707
708 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, int evidx)
709 {
710 return symbol__inc_addr_samples(ams->sym, ams->map, evidx, ams->al_addr);
711 }
712
713 int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 ip)
714 {
715 return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evidx, ip);
716 }
717
718 static void disasm_line__init_ins(struct disasm_line *dl)
719 {
720 dl->ins = ins__find(dl->name);
721
722 if (dl->ins == NULL)
723 return;
724
725 if (!dl->ins->ops)
726 return;
727
728 if (dl->ins->ops->parse && dl->ins->ops->parse(&dl->ops) < 0)
729 dl->ins = NULL;
730 }
731
732 static int disasm_line__parse(char *line, char **namep, char **rawp)
733 {
734 char *name = line, tmp;
735
736 while (isspace(name[0]))
737 ++name;
738
739 if (name[0] == '\0')
740 return -1;
741
742 *rawp = name + 1;
743
744 while ((*rawp)[0] != '\0' && !isspace((*rawp)[0]))
745 ++*rawp;
746
747 tmp = (*rawp)[0];
748 (*rawp)[0] = '\0';
749 *namep = strdup(name);
750
751 if (*namep == NULL)
752 goto out_free_name;
753
754 (*rawp)[0] = tmp;
755
756 if ((*rawp)[0] != '\0') {
757 (*rawp)++;
758 while (isspace((*rawp)[0]))
759 ++(*rawp);
760 }
761
762 return 0;
763
764 out_free_name:
765 zfree(namep);
766 return -1;
767 }
768
769 static struct disasm_line *disasm_line__new(s64 offset, char *line,
770 size_t privsize, int line_nr)
771 {
772 struct disasm_line *dl = zalloc(sizeof(*dl) + privsize);
773
774 if (dl != NULL) {
775 dl->offset = offset;
776 dl->line = strdup(line);
777 dl->line_nr = line_nr;
778 if (dl->line == NULL)
779 goto out_delete;
780
781 if (offset != -1) {
782 if (disasm_line__parse(dl->line, &dl->name, &dl->ops.raw) < 0)
783 goto out_free_line;
784
785 disasm_line__init_ins(dl);
786 }
787 }
788
789 return dl;
790
791 out_free_line:
792 zfree(&dl->line);
793 out_delete:
794 free(dl);
795 return NULL;
796 }
797
798 void disasm_line__free(struct disasm_line *dl)
799 {
800 zfree(&dl->line);
801 zfree(&dl->name);
802 if (dl->ins && dl->ins->ops->free)
803 dl->ins->ops->free(&dl->ops);
804 else
805 ins__delete(&dl->ops);
806 free(dl);
807 }
808
809 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw)
810 {
811 if (raw || !dl->ins)
812 return scnprintf(bf, size, "%-6.6s %s", dl->name, dl->ops.raw);
813
814 return ins__scnprintf(dl->ins, bf, size, &dl->ops);
815 }
816
817 static void disasm__add(struct list_head *head, struct disasm_line *line)
818 {
819 list_add_tail(&line->node, head);
820 }
821
822 struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disasm_line *pos)
823 {
824 list_for_each_entry_continue(pos, head, node)
825 if (pos->offset >= 0)
826 return pos;
827
828 return NULL;
829 }
830
831 double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset,
832 s64 end, const char **path, u64 *nr_samples)
833 {
834 struct source_line *src_line = notes->src->lines;
835 double percent = 0.0;
836 *nr_samples = 0;
837
838 if (src_line) {
839 size_t sizeof_src_line = sizeof(*src_line) +
840 sizeof(src_line->samples) * (src_line->nr_pcnt - 1);
841
842 while (offset < end) {
843 src_line = (void *)notes->src->lines +
844 (sizeof_src_line * offset);
845
846 if (*path == NULL)
847 *path = src_line->path;
848
849 percent += src_line->samples[evidx].percent;
850 *nr_samples += src_line->samples[evidx].nr;
851 offset++;
852 }
853 } else {
854 struct sym_hist *h = annotation__histogram(notes, evidx);
855 unsigned int hits = 0;
856
857 while (offset < end)
858 hits += h->addr[offset++];
859
860 if (h->sum) {
861 *nr_samples = hits;
862 percent = 100.0 * hits / h->sum;
863 }
864 }
865
866 return percent;
867 }
868
869 static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 start,
870 struct perf_evsel *evsel, u64 len, int min_pcnt, int printed,
871 int max_lines, struct disasm_line *queue)
872 {
873 static const char *prev_line;
874 static const char *prev_color;
875
876 if (dl->offset != -1) {
877 const char *path = NULL;
878 u64 nr_samples;
879 double percent, max_percent = 0.0;
880 double *ppercents = &percent;
881 u64 *psamples = &nr_samples;
882 int i, nr_percent = 1;
883 const char *color;
884 struct annotation *notes = symbol__annotation(sym);
885 s64 offset = dl->offset;
886 const u64 addr = start + offset;
887 struct disasm_line *next;
888
889 next = disasm__get_next_ip_line(&notes->src->source, dl);
890
891 if (perf_evsel__is_group_event(evsel)) {
892 nr_percent = evsel->nr_members;
893 ppercents = calloc(nr_percent, sizeof(double));
894 psamples = calloc(nr_percent, sizeof(u64));
895 if (ppercents == NULL || psamples == NULL) {
896 return -1;
897 }
898 }
899
900 for (i = 0; i < nr_percent; i++) {
901 percent = disasm__calc_percent(notes,
902 notes->src->lines ? i : evsel->idx + i,
903 offset,
904 next ? next->offset : (s64) len,
905 &path, &nr_samples);
906
907 ppercents[i] = percent;
908 psamples[i] = nr_samples;
909 if (percent > max_percent)
910 max_percent = percent;
911 }
912
913 if (max_percent < min_pcnt)
914 return -1;
915
916 if (max_lines && printed >= max_lines)
917 return 1;
918
919 if (queue != NULL) {
920 list_for_each_entry_from(queue, &notes->src->source, node) {
921 if (queue == dl)
922 break;
923 disasm_line__print(queue, sym, start, evsel, len,
924 0, 0, 1, NULL);
925 }
926 }
927
928 color = get_percent_color(max_percent);
929
930 /*
931 * Also color the filename and line if needed, with
932 * the same color than the percentage. Don't print it
933 * twice for close colored addr with the same filename:line
934 */
935 if (path) {
936 if (!prev_line || strcmp(prev_line, path)
937 || color != prev_color) {
938 color_fprintf(stdout, color, " %s", path);
939 prev_line = path;
940 prev_color = color;
941 }
942 }
943
944 for (i = 0; i < nr_percent; i++) {
945 percent = ppercents[i];
946 nr_samples = psamples[i];
947 color = get_percent_color(percent);
948
949 if (symbol_conf.show_total_period)
950 color_fprintf(stdout, color, " %7" PRIu64,
951 nr_samples);
952 else
953 color_fprintf(stdout, color, " %7.2f", percent);
954 }
955
956 printf(" : ");
957 color_fprintf(stdout, PERF_COLOR_MAGENTA, " %" PRIx64 ":", addr);
958 color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", dl->line);
959
960 if (ppercents != &percent)
961 free(ppercents);
962
963 if (psamples != &nr_samples)
964 free(psamples);
965
966 } else if (max_lines && printed >= max_lines)
967 return 1;
968 else {
969 int width = 8;
970
971 if (queue)
972 return -1;
973
974 if (perf_evsel__is_group_event(evsel))
975 width *= evsel->nr_members;
976
977 if (!*dl->line)
978 printf(" %*s:\n", width, " ");
979 else
980 printf(" %*s: %s\n", width, " ", dl->line);
981 }
982
983 return 0;
984 }
985
986 /*
987 * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw)
988 * which looks like following
989 *
990 * 0000000000415500 <_init>:
991 * 415500: sub $0x8,%rsp
992 * 415504: mov 0x2f5ad5(%rip),%rax # 70afe0 <_DYNAMIC+0x2f8>
993 * 41550b: test %rax,%rax
994 * 41550e: je 415515 <_init+0x15>
995 * 415510: callq 416e70 <__gmon_start__@plt>
996 * 415515: add $0x8,%rsp
997 * 415519: retq
998 *
999 * it will be parsed and saved into struct disasm_line as
1000 * <offset> <name> <ops.raw>
1001 *
1002 * The offset will be a relative offset from the start of the symbol and -1
1003 * means that it's not a disassembly line so should be treated differently.
1004 * The ops.raw part will be parsed further according to type of the instruction.
1005 */
1006 static int symbol__parse_objdump_line(struct symbol *sym, struct map *map,
1007 FILE *file, size_t privsize,
1008 int *line_nr)
1009 {
1010 struct annotation *notes = symbol__annotation(sym);
1011 struct disasm_line *dl;
1012 char *line = NULL, *parsed_line, *tmp, *tmp2, *c;
1013 size_t line_len;
1014 s64 line_ip, offset = -1;
1015 regmatch_t match[2];
1016
1017 if (getline(&line, &line_len, file) < 0)
1018 return -1;
1019
1020 if (!line)
1021 return -1;
1022
1023 while (line_len != 0 && isspace(line[line_len - 1]))
1024 line[--line_len] = '\0';
1025
1026 c = strchr(line, '\n');
1027 if (c)
1028 *c = 0;
1029
1030 line_ip = -1;
1031 parsed_line = line;
1032
1033 /* /filename:linenr ? Save line number and ignore. */
1034 if (regexec(&file_lineno, line, 2, match, 0) == 0) {
1035 *line_nr = atoi(line + match[1].rm_so);
1036 return 0;
1037 }
1038
1039 /*
1040 * Strip leading spaces:
1041 */
1042 tmp = line;
1043 while (*tmp) {
1044 if (*tmp != ' ')
1045 break;
1046 tmp++;
1047 }
1048
1049 if (*tmp) {
1050 /*
1051 * Parse hexa addresses followed by ':'
1052 */
1053 line_ip = strtoull(tmp, &tmp2, 16);
1054 if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0')
1055 line_ip = -1;
1056 }
1057
1058 if (line_ip != -1) {
1059 u64 start = map__rip_2objdump(map, sym->start),
1060 end = map__rip_2objdump(map, sym->end);
1061
1062 offset = line_ip - start;
1063 if ((u64)line_ip < start || (u64)line_ip >= end)
1064 offset = -1;
1065 else
1066 parsed_line = tmp2 + 1;
1067 }
1068
1069 dl = disasm_line__new(offset, parsed_line, privsize, *line_nr);
1070 free(line);
1071 (*line_nr)++;
1072
1073 if (dl == NULL)
1074 return -1;
1075
1076 if (dl->ops.target.offset == UINT64_MAX)
1077 dl->ops.target.offset = dl->ops.target.addr -
1078 map__rip_2objdump(map, sym->start);
1079
1080 /* kcore has no symbols, so add the call target name */
1081 if (dl->ins && ins__is_call(dl->ins) && !dl->ops.target.name) {
1082 struct addr_map_symbol target = {
1083 .map = map,
1084 .addr = dl->ops.target.addr,
1085 };
1086
1087 if (!map_groups__find_ams(&target, NULL) &&
1088 target.sym->start == target.al_addr)
1089 dl->ops.target.name = strdup(target.sym->name);
1090 }
1091
1092 disasm__add(&notes->src->source, dl);
1093
1094 return 0;
1095 }
1096
1097 static __attribute__((constructor)) void symbol__init_regexpr(void)
1098 {
1099 regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED);
1100 }
1101
1102 static void delete_last_nop(struct symbol *sym)
1103 {
1104 struct annotation *notes = symbol__annotation(sym);
1105 struct list_head *list = &notes->src->source;
1106 struct disasm_line *dl;
1107
1108 while (!list_empty(list)) {
1109 dl = list_entry(list->prev, struct disasm_line, node);
1110
1111 if (dl->ins && dl->ins->ops) {
1112 if (dl->ins->ops != &nop_ops)
1113 return;
1114 } else {
1115 if (!strstr(dl->line, " nop ") &&
1116 !strstr(dl->line, " nopl ") &&
1117 !strstr(dl->line, " nopw "))
1118 return;
1119 }
1120
1121 list_del(&dl->node);
1122 disasm_line__free(dl);
1123 }
1124 }
1125
1126 int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize)
1127 {
1128 struct dso *dso = map->dso;
1129 char *filename = dso__build_id_filename(dso, NULL, 0);
1130 bool free_filename = true;
1131 char command[PATH_MAX * 2];
1132 FILE *file;
1133 int err = 0;
1134 char symfs_filename[PATH_MAX];
1135 struct kcore_extract kce;
1136 bool delete_extract = false;
1137 int lineno = 0;
1138 int nline;
1139
1140 if (filename)
1141 symbol__join_symfs(symfs_filename, filename);
1142
1143 if (filename == NULL) {
1144 if (dso->has_build_id) {
1145 pr_err("Can't annotate %s: not enough memory\n",
1146 sym->name);
1147 return -ENOMEM;
1148 }
1149 goto fallback;
1150 } else if (dso__is_kcore(dso)) {
1151 goto fallback;
1152 } else if (readlink(symfs_filename, command, sizeof(command)) < 0 ||
1153 strstr(command, DSO__NAME_KALLSYMS) ||
1154 access(symfs_filename, R_OK)) {
1155 free(filename);
1156 fallback:
1157 /*
1158 * If we don't have build-ids or the build-id file isn't in the
1159 * cache, or is just a kallsyms file, well, lets hope that this
1160 * DSO is the same as when 'perf record' ran.
1161 */
1162 filename = (char *)dso->long_name;
1163 symbol__join_symfs(symfs_filename, filename);
1164 free_filename = false;
1165 }
1166
1167 if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
1168 !dso__is_kcore(dso)) {
1169 char bf[SBUILD_ID_SIZE + 15] = " with build id ";
1170 char *build_id_msg = NULL;
1171
1172 if (dso->annotate_warned)
1173 goto out_free_filename;
1174
1175 if (dso->has_build_id) {
1176 build_id__sprintf(dso->build_id,
1177 sizeof(dso->build_id), bf + 15);
1178 build_id_msg = bf;
1179 }
1180 err = -ENOENT;
1181 dso->annotate_warned = 1;
1182 pr_err("Can't annotate %s:\n\n"
1183 "No vmlinux file%s\nwas found in the path.\n\n"
1184 "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n"
1185 "Please use:\n\n"
1186 " perf buildid-cache -vu vmlinux\n\n"
1187 "or:\n\n"
1188 " --vmlinux vmlinux\n",
1189 sym->name, build_id_msg ?: "");
1190 goto out_free_filename;
1191 }
1192
1193 pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
1194 filename, sym->name, map->unmap_ip(map, sym->start),
1195 map->unmap_ip(map, sym->end));
1196
1197 pr_debug("annotating [%p] %30s : [%p] %30s\n",
1198 dso, dso->long_name, sym, sym->name);
1199
1200 if (dso__is_kcore(dso)) {
1201 kce.kcore_filename = symfs_filename;
1202 kce.addr = map__rip_2objdump(map, sym->start);
1203 kce.offs = sym->start;
1204 kce.len = sym->end - sym->start;
1205 if (!kcore_extract__create(&kce)) {
1206 delete_extract = true;
1207 strlcpy(symfs_filename, kce.extract_filename,
1208 sizeof(symfs_filename));
1209 if (free_filename) {
1210 free(filename);
1211 free_filename = false;
1212 }
1213 filename = symfs_filename;
1214 }
1215 } else if (dso__needs_decompress(dso)) {
1216 char tmp[PATH_MAX];
1217 struct kmod_path m;
1218 int fd;
1219 bool ret;
1220
1221 if (kmod_path__parse_ext(&m, symfs_filename))
1222 goto out_free_filename;
1223
1224 snprintf(tmp, PATH_MAX, "/tmp/perf-kmod-XXXXXX");
1225
1226 fd = mkstemp(tmp);
1227 if (fd < 0) {
1228 free(m.ext);
1229 goto out_free_filename;
1230 }
1231
1232 ret = decompress_to_file(m.ext, symfs_filename, fd);
1233
1234 if (ret)
1235 pr_err("Cannot decompress %s %s\n", m.ext, symfs_filename);
1236
1237 free(m.ext);
1238 close(fd);
1239
1240 if (!ret)
1241 goto out_free_filename;
1242
1243 strcpy(symfs_filename, tmp);
1244 }
1245
1246 snprintf(command, sizeof(command),
1247 "%s %s%s --start-address=0x%016" PRIx64
1248 " --stop-address=0x%016" PRIx64
1249 " -l -d %s %s -C %s 2>/dev/null|grep -v %s|expand",
1250 objdump_path ? objdump_path : "objdump",
1251 disassembler_style ? "-M " : "",
1252 disassembler_style ? disassembler_style : "",
1253 map__rip_2objdump(map, sym->start),
1254 map__rip_2objdump(map, sym->end),
1255 symbol_conf.annotate_asm_raw ? "" : "--no-show-raw",
1256 symbol_conf.annotate_src ? "-S" : "",
1257 symfs_filename, filename);
1258
1259 pr_debug("Executing: %s\n", command);
1260
1261 file = popen(command, "r");
1262 if (!file) {
1263 pr_err("Failure running %s\n", command);
1264 /*
1265 * If we were using debug info should retry with
1266 * original binary.
1267 */
1268 goto out_remove_tmp;
1269 }
1270
1271 nline = 0;
1272 while (!feof(file)) {
1273 if (symbol__parse_objdump_line(sym, map, file, privsize,
1274 &lineno) < 0)
1275 break;
1276 nline++;
1277 }
1278
1279 if (nline == 0)
1280 pr_err("No output from %s\n", command);
1281
1282 /*
1283 * kallsyms does not have symbol sizes so there may a nop at the end.
1284 * Remove it.
1285 */
1286 if (dso__is_kcore(dso))
1287 delete_last_nop(sym);
1288
1289 pclose(file);
1290
1291 out_remove_tmp:
1292 if (dso__needs_decompress(dso))
1293 unlink(symfs_filename);
1294 out_free_filename:
1295 if (delete_extract)
1296 kcore_extract__delete(&kce);
1297 if (free_filename)
1298 free(filename);
1299 return err;
1300 }
1301
1302 static void insert_source_line(struct rb_root *root, struct source_line *src_line)
1303 {
1304 struct source_line *iter;
1305 struct rb_node **p = &root->rb_node;
1306 struct rb_node *parent = NULL;
1307 int i, ret;
1308
1309 while (*p != NULL) {
1310 parent = *p;
1311 iter = rb_entry(parent, struct source_line, node);
1312
1313 ret = strcmp(iter->path, src_line->path);
1314 if (ret == 0) {
1315 for (i = 0; i < src_line->nr_pcnt; i++)
1316 iter->samples[i].percent_sum += src_line->samples[i].percent;
1317 return;
1318 }
1319
1320 if (ret < 0)
1321 p = &(*p)->rb_left;
1322 else
1323 p = &(*p)->rb_right;
1324 }
1325
1326 for (i = 0; i < src_line->nr_pcnt; i++)
1327 src_line->samples[i].percent_sum = src_line->samples[i].percent;
1328
1329 rb_link_node(&src_line->node, parent, p);
1330 rb_insert_color(&src_line->node, root);
1331 }
1332
1333 static int cmp_source_line(struct source_line *a, struct source_line *b)
1334 {
1335 int i;
1336
1337 for (i = 0; i < a->nr_pcnt; i++) {
1338 if (a->samples[i].percent_sum == b->samples[i].percent_sum)
1339 continue;
1340 return a->samples[i].percent_sum > b->samples[i].percent_sum;
1341 }
1342
1343 return 0;
1344 }
1345
1346 static void __resort_source_line(struct rb_root *root, struct source_line *src_line)
1347 {
1348 struct source_line *iter;
1349 struct rb_node **p = &root->rb_node;
1350 struct rb_node *parent = NULL;
1351
1352 while (*p != NULL) {
1353 parent = *p;
1354 iter = rb_entry(parent, struct source_line, node);
1355
1356 if (cmp_source_line(src_line, iter))
1357 p = &(*p)->rb_left;
1358 else
1359 p = &(*p)->rb_right;
1360 }
1361
1362 rb_link_node(&src_line->node, parent, p);
1363 rb_insert_color(&src_line->node, root);
1364 }
1365
1366 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
1367 {
1368 struct source_line *src_line;
1369 struct rb_node *node;
1370
1371 node = rb_first(src_root);
1372 while (node) {
1373 struct rb_node *next;
1374
1375 src_line = rb_entry(node, struct source_line, node);
1376 next = rb_next(node);
1377 rb_erase(node, src_root);
1378
1379 __resort_source_line(dest_root, src_line);
1380 node = next;
1381 }
1382 }
1383
1384 static void symbol__free_source_line(struct symbol *sym, int len)
1385 {
1386 struct annotation *notes = symbol__annotation(sym);
1387 struct source_line *src_line = notes->src->lines;
1388 size_t sizeof_src_line;
1389 int i;
1390
1391 sizeof_src_line = sizeof(*src_line) +
1392 (sizeof(src_line->samples) * (src_line->nr_pcnt - 1));
1393
1394 for (i = 0; i < len; i++) {
1395 free_srcline(src_line->path);
1396 src_line = (void *)src_line + sizeof_src_line;
1397 }
1398
1399 zfree(&notes->src->lines);
1400 }
1401
1402 /* Get the filename:line for the colored entries */
1403 static int symbol__get_source_line(struct symbol *sym, struct map *map,
1404 struct perf_evsel *evsel,
1405 struct rb_root *root, int len)
1406 {
1407 u64 start;
1408 int i, k;
1409 int evidx = evsel->idx;
1410 struct source_line *src_line;
1411 struct annotation *notes = symbol__annotation(sym);
1412 struct sym_hist *h = annotation__histogram(notes, evidx);
1413 struct rb_root tmp_root = RB_ROOT;
1414 int nr_pcnt = 1;
1415 u64 h_sum = h->sum;
1416 size_t sizeof_src_line = sizeof(struct source_line);
1417
1418 if (perf_evsel__is_group_event(evsel)) {
1419 for (i = 1; i < evsel->nr_members; i++) {
1420 h = annotation__histogram(notes, evidx + i);
1421 h_sum += h->sum;
1422 }
1423 nr_pcnt = evsel->nr_members;
1424 sizeof_src_line += (nr_pcnt - 1) * sizeof(src_line->samples);
1425 }
1426
1427 if (!h_sum)
1428 return 0;
1429
1430 src_line = notes->src->lines = calloc(len, sizeof_src_line);
1431 if (!notes->src->lines)
1432 return -1;
1433
1434 start = map__rip_2objdump(map, sym->start);
1435
1436 for (i = 0; i < len; i++) {
1437 u64 offset;
1438 double percent_max = 0.0;
1439
1440 src_line->nr_pcnt = nr_pcnt;
1441
1442 for (k = 0; k < nr_pcnt; k++) {
1443 h = annotation__histogram(notes, evidx + k);
1444 src_line->samples[k].percent = 100.0 * h->addr[i] / h->sum;
1445
1446 if (src_line->samples[k].percent > percent_max)
1447 percent_max = src_line->samples[k].percent;
1448 }
1449
1450 if (percent_max <= 0.5)
1451 goto next;
1452
1453 offset = start + i;
1454 src_line->path = get_srcline(map->dso, offset, NULL, false);
1455 insert_source_line(&tmp_root, src_line);
1456
1457 next:
1458 src_line = (void *)src_line + sizeof_src_line;
1459 }
1460
1461 resort_source_line(root, &tmp_root);
1462 return 0;
1463 }
1464
1465 static void print_summary(struct rb_root *root, const char *filename)
1466 {
1467 struct source_line *src_line;
1468 struct rb_node *node;
1469
1470 printf("\nSorted summary for file %s\n", filename);
1471 printf("----------------------------------------------\n\n");
1472
1473 if (RB_EMPTY_ROOT(root)) {
1474 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
1475 return;
1476 }
1477
1478 node = rb_first(root);
1479 while (node) {
1480 double percent, percent_max = 0.0;
1481 const char *color;
1482 char *path;
1483 int i;
1484
1485 src_line = rb_entry(node, struct source_line, node);
1486 for (i = 0; i < src_line->nr_pcnt; i++) {
1487 percent = src_line->samples[i].percent_sum;
1488 color = get_percent_color(percent);
1489 color_fprintf(stdout, color, " %7.2f", percent);
1490
1491 if (percent > percent_max)
1492 percent_max = percent;
1493 }
1494
1495 path = src_line->path;
1496 color = get_percent_color(percent_max);
1497 color_fprintf(stdout, color, " %s\n", path);
1498
1499 node = rb_next(node);
1500 }
1501 }
1502
1503 static void symbol__annotate_hits(struct symbol *sym, struct perf_evsel *evsel)
1504 {
1505 struct annotation *notes = symbol__annotation(sym);
1506 struct sym_hist *h = annotation__histogram(notes, evsel->idx);
1507 u64 len = symbol__size(sym), offset;
1508
1509 for (offset = 0; offset < len; ++offset)
1510 if (h->addr[offset] != 0)
1511 printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
1512 sym->start + offset, h->addr[offset]);
1513 printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->sum", h->sum);
1514 }
1515
1516 int symbol__annotate_printf(struct symbol *sym, struct map *map,
1517 struct perf_evsel *evsel, bool full_paths,
1518 int min_pcnt, int max_lines, int context)
1519 {
1520 struct dso *dso = map->dso;
1521 char *filename;
1522 const char *d_filename;
1523 const char *evsel_name = perf_evsel__name(evsel);
1524 struct annotation *notes = symbol__annotation(sym);
1525 struct sym_hist *h = annotation__histogram(notes, evsel->idx);
1526 struct disasm_line *pos, *queue = NULL;
1527 u64 start = map__rip_2objdump(map, sym->start);
1528 int printed = 2, queue_len = 0;
1529 int more = 0;
1530 u64 len;
1531 int width = 8;
1532 int graph_dotted_len;
1533
1534 filename = strdup(dso->long_name);
1535 if (!filename)
1536 return -ENOMEM;
1537
1538 if (full_paths)
1539 d_filename = filename;
1540 else
1541 d_filename = basename(filename);
1542
1543 len = symbol__size(sym);
1544
1545 if (perf_evsel__is_group_event(evsel))
1546 width *= evsel->nr_members;
1547
1548 graph_dotted_len = printf(" %-*.*s| Source code & Disassembly of %s for %s (%" PRIu64 " samples)\n",
1549 width, width, "Percent", d_filename, evsel_name, h->sum);
1550
1551 printf("%-*.*s----\n",
1552 graph_dotted_len, graph_dotted_len, graph_dotted_line);
1553
1554 if (verbose)
1555 symbol__annotate_hits(sym, evsel);
1556
1557 list_for_each_entry(pos, &notes->src->source, node) {
1558 if (context && queue == NULL) {
1559 queue = pos;
1560 queue_len = 0;
1561 }
1562
1563 switch (disasm_line__print(pos, sym, start, evsel, len,
1564 min_pcnt, printed, max_lines,
1565 queue)) {
1566 case 0:
1567 ++printed;
1568 if (context) {
1569 printed += queue_len;
1570 queue = NULL;
1571 queue_len = 0;
1572 }
1573 break;
1574 case 1:
1575 /* filtered by max_lines */
1576 ++more;
1577 break;
1578 case -1:
1579 default:
1580 /*
1581 * Filtered by min_pcnt or non IP lines when
1582 * context != 0
1583 */
1584 if (!context)
1585 break;
1586 if (queue_len == context)
1587 queue = list_entry(queue->node.next, typeof(*queue), node);
1588 else
1589 ++queue_len;
1590 break;
1591 }
1592 }
1593
1594 free(filename);
1595
1596 return more;
1597 }
1598
1599 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
1600 {
1601 struct annotation *notes = symbol__annotation(sym);
1602 struct sym_hist *h = annotation__histogram(notes, evidx);
1603
1604 memset(h, 0, notes->src->sizeof_sym_hist);
1605 }
1606
1607 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
1608 {
1609 struct annotation *notes = symbol__annotation(sym);
1610 struct sym_hist *h = annotation__histogram(notes, evidx);
1611 int len = symbol__size(sym), offset;
1612
1613 h->sum = 0;
1614 for (offset = 0; offset < len; ++offset) {
1615 h->addr[offset] = h->addr[offset] * 7 / 8;
1616 h->sum += h->addr[offset];
1617 }
1618 }
1619
1620 void disasm__purge(struct list_head *head)
1621 {
1622 struct disasm_line *pos, *n;
1623
1624 list_for_each_entry_safe(pos, n, head, node) {
1625 list_del(&pos->node);
1626 disasm_line__free(pos);
1627 }
1628 }
1629
1630 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
1631 {
1632 size_t printed;
1633
1634 if (dl->offset == -1)
1635 return fprintf(fp, "%s\n", dl->line);
1636
1637 printed = fprintf(fp, "%#" PRIx64 " %s", dl->offset, dl->name);
1638
1639 if (dl->ops.raw[0] != '\0') {
1640 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
1641 dl->ops.raw);
1642 }
1643
1644 return printed + fprintf(fp, "\n");
1645 }
1646
1647 size_t disasm__fprintf(struct list_head *head, FILE *fp)
1648 {
1649 struct disasm_line *pos;
1650 size_t printed = 0;
1651
1652 list_for_each_entry(pos, head, node)
1653 printed += disasm_line__fprintf(pos, fp);
1654
1655 return printed;
1656 }
1657
1658 int symbol__tty_annotate(struct symbol *sym, struct map *map,
1659 struct perf_evsel *evsel, bool print_lines,
1660 bool full_paths, int min_pcnt, int max_lines)
1661 {
1662 struct dso *dso = map->dso;
1663 struct rb_root source_line = RB_ROOT;
1664 u64 len;
1665
1666 if (symbol__annotate(sym, map, 0) < 0)
1667 return -1;
1668
1669 len = symbol__size(sym);
1670
1671 if (print_lines) {
1672 srcline_full_filename = full_paths;
1673 symbol__get_source_line(sym, map, evsel, &source_line, len);
1674 print_summary(&source_line, dso->long_name);
1675 }
1676
1677 symbol__annotate_printf(sym, map, evsel, full_paths,
1678 min_pcnt, max_lines, 0);
1679 if (print_lines)
1680 symbol__free_source_line(sym, len);
1681
1682 disasm__purge(&symbol__annotation(sym)->src->source);
1683
1684 return 0;
1685 }
1686
1687 bool ui__has_annotation(void)
1688 {
1689 return use_browser == 1 && perf_hpp_list.sym;
1690 }
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