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Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[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__strerror_disassemble(struct symbol *sym __maybe_unused, struct map *map,
1127 int errnum, char *buf, size_t buflen)
1128 {
1129 struct dso *dso = map->dso;
1130
1131 BUG_ON(buflen == 0);
1132
1133 if (errnum >= 0) {
1134 str_error_r(errnum, buf, buflen);
1135 return 0;
1136 }
1137
1138 switch (errnum) {
1139 case SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX: {
1140 char bf[SBUILD_ID_SIZE + 15] = " with build id ";
1141 char *build_id_msg = NULL;
1142
1143 if (dso->has_build_id) {
1144 build_id__sprintf(dso->build_id,
1145 sizeof(dso->build_id), bf + 15);
1146 build_id_msg = bf;
1147 }
1148 scnprintf(buf, buflen,
1149 "No vmlinux file%s\nwas found in the path.\n\n"
1150 "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n"
1151 "Please use:\n\n"
1152 " perf buildid-cache -vu vmlinux\n\n"
1153 "or:\n\n"
1154 " --vmlinux vmlinux\n", build_id_msg ?: "");
1155 }
1156 break;
1157 default:
1158 scnprintf(buf, buflen, "Internal error: Invalid %d error code\n", errnum);
1159 break;
1160 }
1161
1162 return 0;
1163 }
1164
1165 int symbol__disassemble(struct symbol *sym, struct map *map, size_t privsize)
1166 {
1167 struct dso *dso = map->dso;
1168 char *filename = dso__build_id_filename(dso, NULL, 0);
1169 bool free_filename = true;
1170 char command[PATH_MAX * 2];
1171 FILE *file;
1172 int err = 0;
1173 char symfs_filename[PATH_MAX];
1174 struct kcore_extract kce;
1175 bool delete_extract = false;
1176 int stdout_fd[2];
1177 int lineno = 0;
1178 int nline;
1179 pid_t pid;
1180
1181 if (filename)
1182 symbol__join_symfs(symfs_filename, filename);
1183
1184 if (filename == NULL) {
1185 if (dso->has_build_id)
1186 return ENOMEM;
1187 goto fallback;
1188 } else if (dso__is_kcore(dso) ||
1189 readlink(symfs_filename, command, sizeof(command)) < 0 ||
1190 strstr(command, DSO__NAME_KALLSYMS) ||
1191 access(symfs_filename, R_OK)) {
1192 free(filename);
1193 fallback:
1194 /*
1195 * If we don't have build-ids or the build-id file isn't in the
1196 * cache, or is just a kallsyms file, well, lets hope that this
1197 * DSO is the same as when 'perf record' ran.
1198 */
1199 filename = (char *)dso->long_name;
1200 symbol__join_symfs(symfs_filename, filename);
1201 free_filename = false;
1202 }
1203
1204 if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
1205 !dso__is_kcore(dso)) {
1206 err = SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX;
1207 goto out_free_filename;
1208 }
1209
1210 pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
1211 filename, sym->name, map->unmap_ip(map, sym->start),
1212 map->unmap_ip(map, sym->end));
1213
1214 pr_debug("annotating [%p] %30s : [%p] %30s\n",
1215 dso, dso->long_name, sym, sym->name);
1216
1217 if (dso__is_kcore(dso)) {
1218 kce.kcore_filename = symfs_filename;
1219 kce.addr = map__rip_2objdump(map, sym->start);
1220 kce.offs = sym->start;
1221 kce.len = sym->end - sym->start;
1222 if (!kcore_extract__create(&kce)) {
1223 delete_extract = true;
1224 strlcpy(symfs_filename, kce.extract_filename,
1225 sizeof(symfs_filename));
1226 if (free_filename) {
1227 free(filename);
1228 free_filename = false;
1229 }
1230 filename = symfs_filename;
1231 }
1232 } else if (dso__needs_decompress(dso)) {
1233 char tmp[PATH_MAX];
1234 struct kmod_path m;
1235 int fd;
1236 bool ret;
1237
1238 if (kmod_path__parse_ext(&m, symfs_filename))
1239 goto out_free_filename;
1240
1241 snprintf(tmp, PATH_MAX, "/tmp/perf-kmod-XXXXXX");
1242
1243 fd = mkstemp(tmp);
1244 if (fd < 0) {
1245 free(m.ext);
1246 goto out_free_filename;
1247 }
1248
1249 ret = decompress_to_file(m.ext, symfs_filename, fd);
1250
1251 if (ret)
1252 pr_err("Cannot decompress %s %s\n", m.ext, symfs_filename);
1253
1254 free(m.ext);
1255 close(fd);
1256
1257 if (!ret)
1258 goto out_free_filename;
1259
1260 strcpy(symfs_filename, tmp);
1261 }
1262
1263 snprintf(command, sizeof(command),
1264 "%s %s%s --start-address=0x%016" PRIx64
1265 " --stop-address=0x%016" PRIx64
1266 " -l -d %s %s -C %s 2>/dev/null|grep -v %s|expand",
1267 objdump_path ? objdump_path : "objdump",
1268 disassembler_style ? "-M " : "",
1269 disassembler_style ? disassembler_style : "",
1270 map__rip_2objdump(map, sym->start),
1271 map__rip_2objdump(map, sym->end),
1272 symbol_conf.annotate_asm_raw ? "" : "--no-show-raw",
1273 symbol_conf.annotate_src ? "-S" : "",
1274 symfs_filename, filename);
1275
1276 pr_debug("Executing: %s\n", command);
1277
1278 err = -1;
1279 if (pipe(stdout_fd) < 0) {
1280 pr_err("Failure creating the pipe to run %s\n", command);
1281 goto out_remove_tmp;
1282 }
1283
1284 pid = fork();
1285 if (pid < 0) {
1286 pr_err("Failure forking to run %s\n", command);
1287 goto out_close_stdout;
1288 }
1289
1290 if (pid == 0) {
1291 close(stdout_fd[0]);
1292 dup2(stdout_fd[1], 1);
1293 close(stdout_fd[1]);
1294 execl("/bin/sh", "sh", "-c", command, NULL);
1295 perror(command);
1296 exit(-1);
1297 }
1298
1299 close(stdout_fd[1]);
1300
1301 file = fdopen(stdout_fd[0], "r");
1302 if (!file) {
1303 pr_err("Failure creating FILE stream for %s\n", command);
1304 /*
1305 * If we were using debug info should retry with
1306 * original binary.
1307 */
1308 goto out_remove_tmp;
1309 }
1310
1311 nline = 0;
1312 while (!feof(file)) {
1313 if (symbol__parse_objdump_line(sym, map, file, privsize,
1314 &lineno) < 0)
1315 break;
1316 nline++;
1317 }
1318
1319 if (nline == 0)
1320 pr_err("No output from %s\n", command);
1321
1322 /*
1323 * kallsyms does not have symbol sizes so there may a nop at the end.
1324 * Remove it.
1325 */
1326 if (dso__is_kcore(dso))
1327 delete_last_nop(sym);
1328
1329 fclose(file);
1330 err = 0;
1331 out_remove_tmp:
1332 close(stdout_fd[0]);
1333
1334 if (dso__needs_decompress(dso))
1335 unlink(symfs_filename);
1336 out_free_filename:
1337 if (delete_extract)
1338 kcore_extract__delete(&kce);
1339 if (free_filename)
1340 free(filename);
1341 return err;
1342
1343 out_close_stdout:
1344 close(stdout_fd[1]);
1345 goto out_remove_tmp;
1346 }
1347
1348 static void insert_source_line(struct rb_root *root, struct source_line *src_line)
1349 {
1350 struct source_line *iter;
1351 struct rb_node **p = &root->rb_node;
1352 struct rb_node *parent = NULL;
1353 int i, ret;
1354
1355 while (*p != NULL) {
1356 parent = *p;
1357 iter = rb_entry(parent, struct source_line, node);
1358
1359 ret = strcmp(iter->path, src_line->path);
1360 if (ret == 0) {
1361 for (i = 0; i < src_line->nr_pcnt; i++)
1362 iter->samples[i].percent_sum += src_line->samples[i].percent;
1363 return;
1364 }
1365
1366 if (ret < 0)
1367 p = &(*p)->rb_left;
1368 else
1369 p = &(*p)->rb_right;
1370 }
1371
1372 for (i = 0; i < src_line->nr_pcnt; i++)
1373 src_line->samples[i].percent_sum = src_line->samples[i].percent;
1374
1375 rb_link_node(&src_line->node, parent, p);
1376 rb_insert_color(&src_line->node, root);
1377 }
1378
1379 static int cmp_source_line(struct source_line *a, struct source_line *b)
1380 {
1381 int i;
1382
1383 for (i = 0; i < a->nr_pcnt; i++) {
1384 if (a->samples[i].percent_sum == b->samples[i].percent_sum)
1385 continue;
1386 return a->samples[i].percent_sum > b->samples[i].percent_sum;
1387 }
1388
1389 return 0;
1390 }
1391
1392 static void __resort_source_line(struct rb_root *root, struct source_line *src_line)
1393 {
1394 struct source_line *iter;
1395 struct rb_node **p = &root->rb_node;
1396 struct rb_node *parent = NULL;
1397
1398 while (*p != NULL) {
1399 parent = *p;
1400 iter = rb_entry(parent, struct source_line, node);
1401
1402 if (cmp_source_line(src_line, iter))
1403 p = &(*p)->rb_left;
1404 else
1405 p = &(*p)->rb_right;
1406 }
1407
1408 rb_link_node(&src_line->node, parent, p);
1409 rb_insert_color(&src_line->node, root);
1410 }
1411
1412 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
1413 {
1414 struct source_line *src_line;
1415 struct rb_node *node;
1416
1417 node = rb_first(src_root);
1418 while (node) {
1419 struct rb_node *next;
1420
1421 src_line = rb_entry(node, struct source_line, node);
1422 next = rb_next(node);
1423 rb_erase(node, src_root);
1424
1425 __resort_source_line(dest_root, src_line);
1426 node = next;
1427 }
1428 }
1429
1430 static void symbol__free_source_line(struct symbol *sym, int len)
1431 {
1432 struct annotation *notes = symbol__annotation(sym);
1433 struct source_line *src_line = notes->src->lines;
1434 size_t sizeof_src_line;
1435 int i;
1436
1437 sizeof_src_line = sizeof(*src_line) +
1438 (sizeof(src_line->samples) * (src_line->nr_pcnt - 1));
1439
1440 for (i = 0; i < len; i++) {
1441 free_srcline(src_line->path);
1442 src_line = (void *)src_line + sizeof_src_line;
1443 }
1444
1445 zfree(&notes->src->lines);
1446 }
1447
1448 /* Get the filename:line for the colored entries */
1449 static int symbol__get_source_line(struct symbol *sym, struct map *map,
1450 struct perf_evsel *evsel,
1451 struct rb_root *root, int len)
1452 {
1453 u64 start;
1454 int i, k;
1455 int evidx = evsel->idx;
1456 struct source_line *src_line;
1457 struct annotation *notes = symbol__annotation(sym);
1458 struct sym_hist *h = annotation__histogram(notes, evidx);
1459 struct rb_root tmp_root = RB_ROOT;
1460 int nr_pcnt = 1;
1461 u64 h_sum = h->sum;
1462 size_t sizeof_src_line = sizeof(struct source_line);
1463
1464 if (perf_evsel__is_group_event(evsel)) {
1465 for (i = 1; i < evsel->nr_members; i++) {
1466 h = annotation__histogram(notes, evidx + i);
1467 h_sum += h->sum;
1468 }
1469 nr_pcnt = evsel->nr_members;
1470 sizeof_src_line += (nr_pcnt - 1) * sizeof(src_line->samples);
1471 }
1472
1473 if (!h_sum)
1474 return 0;
1475
1476 src_line = notes->src->lines = calloc(len, sizeof_src_line);
1477 if (!notes->src->lines)
1478 return -1;
1479
1480 start = map__rip_2objdump(map, sym->start);
1481
1482 for (i = 0; i < len; i++) {
1483 u64 offset;
1484 double percent_max = 0.0;
1485
1486 src_line->nr_pcnt = nr_pcnt;
1487
1488 for (k = 0; k < nr_pcnt; k++) {
1489 h = annotation__histogram(notes, evidx + k);
1490 src_line->samples[k].percent = 100.0 * h->addr[i] / h->sum;
1491
1492 if (src_line->samples[k].percent > percent_max)
1493 percent_max = src_line->samples[k].percent;
1494 }
1495
1496 if (percent_max <= 0.5)
1497 goto next;
1498
1499 offset = start + i;
1500 src_line->path = get_srcline(map->dso, offset, NULL, false);
1501 insert_source_line(&tmp_root, src_line);
1502
1503 next:
1504 src_line = (void *)src_line + sizeof_src_line;
1505 }
1506
1507 resort_source_line(root, &tmp_root);
1508 return 0;
1509 }
1510
1511 static void print_summary(struct rb_root *root, const char *filename)
1512 {
1513 struct source_line *src_line;
1514 struct rb_node *node;
1515
1516 printf("\nSorted summary for file %s\n", filename);
1517 printf("----------------------------------------------\n\n");
1518
1519 if (RB_EMPTY_ROOT(root)) {
1520 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
1521 return;
1522 }
1523
1524 node = rb_first(root);
1525 while (node) {
1526 double percent, percent_max = 0.0;
1527 const char *color;
1528 char *path;
1529 int i;
1530
1531 src_line = rb_entry(node, struct source_line, node);
1532 for (i = 0; i < src_line->nr_pcnt; i++) {
1533 percent = src_line->samples[i].percent_sum;
1534 color = get_percent_color(percent);
1535 color_fprintf(stdout, color, " %7.2f", percent);
1536
1537 if (percent > percent_max)
1538 percent_max = percent;
1539 }
1540
1541 path = src_line->path;
1542 color = get_percent_color(percent_max);
1543 color_fprintf(stdout, color, " %s\n", path);
1544
1545 node = rb_next(node);
1546 }
1547 }
1548
1549 static void symbol__annotate_hits(struct symbol *sym, struct perf_evsel *evsel)
1550 {
1551 struct annotation *notes = symbol__annotation(sym);
1552 struct sym_hist *h = annotation__histogram(notes, evsel->idx);
1553 u64 len = symbol__size(sym), offset;
1554
1555 for (offset = 0; offset < len; ++offset)
1556 if (h->addr[offset] != 0)
1557 printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
1558 sym->start + offset, h->addr[offset]);
1559 printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->sum", h->sum);
1560 }
1561
1562 int symbol__annotate_printf(struct symbol *sym, struct map *map,
1563 struct perf_evsel *evsel, bool full_paths,
1564 int min_pcnt, int max_lines, int context)
1565 {
1566 struct dso *dso = map->dso;
1567 char *filename;
1568 const char *d_filename;
1569 const char *evsel_name = perf_evsel__name(evsel);
1570 struct annotation *notes = symbol__annotation(sym);
1571 struct sym_hist *h = annotation__histogram(notes, evsel->idx);
1572 struct disasm_line *pos, *queue = NULL;
1573 u64 start = map__rip_2objdump(map, sym->start);
1574 int printed = 2, queue_len = 0;
1575 int more = 0;
1576 u64 len;
1577 int width = 8;
1578 int graph_dotted_len;
1579
1580 filename = strdup(dso->long_name);
1581 if (!filename)
1582 return -ENOMEM;
1583
1584 if (full_paths)
1585 d_filename = filename;
1586 else
1587 d_filename = basename(filename);
1588
1589 len = symbol__size(sym);
1590
1591 if (perf_evsel__is_group_event(evsel))
1592 width *= evsel->nr_members;
1593
1594 graph_dotted_len = printf(" %-*.*s| Source code & Disassembly of %s for %s (%" PRIu64 " samples)\n",
1595 width, width, "Percent", d_filename, evsel_name, h->sum);
1596
1597 printf("%-*.*s----\n",
1598 graph_dotted_len, graph_dotted_len, graph_dotted_line);
1599
1600 if (verbose)
1601 symbol__annotate_hits(sym, evsel);
1602
1603 list_for_each_entry(pos, &notes->src->source, node) {
1604 if (context && queue == NULL) {
1605 queue = pos;
1606 queue_len = 0;
1607 }
1608
1609 switch (disasm_line__print(pos, sym, start, evsel, len,
1610 min_pcnt, printed, max_lines,
1611 queue)) {
1612 case 0:
1613 ++printed;
1614 if (context) {
1615 printed += queue_len;
1616 queue = NULL;
1617 queue_len = 0;
1618 }
1619 break;
1620 case 1:
1621 /* filtered by max_lines */
1622 ++more;
1623 break;
1624 case -1:
1625 default:
1626 /*
1627 * Filtered by min_pcnt or non IP lines when
1628 * context != 0
1629 */
1630 if (!context)
1631 break;
1632 if (queue_len == context)
1633 queue = list_entry(queue->node.next, typeof(*queue), node);
1634 else
1635 ++queue_len;
1636 break;
1637 }
1638 }
1639
1640 free(filename);
1641
1642 return more;
1643 }
1644
1645 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
1646 {
1647 struct annotation *notes = symbol__annotation(sym);
1648 struct sym_hist *h = annotation__histogram(notes, evidx);
1649
1650 memset(h, 0, notes->src->sizeof_sym_hist);
1651 }
1652
1653 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
1654 {
1655 struct annotation *notes = symbol__annotation(sym);
1656 struct sym_hist *h = annotation__histogram(notes, evidx);
1657 int len = symbol__size(sym), offset;
1658
1659 h->sum = 0;
1660 for (offset = 0; offset < len; ++offset) {
1661 h->addr[offset] = h->addr[offset] * 7 / 8;
1662 h->sum += h->addr[offset];
1663 }
1664 }
1665
1666 void disasm__purge(struct list_head *head)
1667 {
1668 struct disasm_line *pos, *n;
1669
1670 list_for_each_entry_safe(pos, n, head, node) {
1671 list_del(&pos->node);
1672 disasm_line__free(pos);
1673 }
1674 }
1675
1676 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
1677 {
1678 size_t printed;
1679
1680 if (dl->offset == -1)
1681 return fprintf(fp, "%s\n", dl->line);
1682
1683 printed = fprintf(fp, "%#" PRIx64 " %s", dl->offset, dl->name);
1684
1685 if (dl->ops.raw[0] != '\0') {
1686 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
1687 dl->ops.raw);
1688 }
1689
1690 return printed + fprintf(fp, "\n");
1691 }
1692
1693 size_t disasm__fprintf(struct list_head *head, FILE *fp)
1694 {
1695 struct disasm_line *pos;
1696 size_t printed = 0;
1697
1698 list_for_each_entry(pos, head, node)
1699 printed += disasm_line__fprintf(pos, fp);
1700
1701 return printed;
1702 }
1703
1704 int symbol__tty_annotate(struct symbol *sym, struct map *map,
1705 struct perf_evsel *evsel, bool print_lines,
1706 bool full_paths, int min_pcnt, int max_lines)
1707 {
1708 struct dso *dso = map->dso;
1709 struct rb_root source_line = RB_ROOT;
1710 u64 len;
1711
1712 if (symbol__disassemble(sym, map, 0) < 0)
1713 return -1;
1714
1715 len = symbol__size(sym);
1716
1717 if (print_lines) {
1718 srcline_full_filename = full_paths;
1719 symbol__get_source_line(sym, map, evsel, &source_line, len);
1720 print_summary(&source_line, dso->long_name);
1721 }
1722
1723 symbol__annotate_printf(sym, map, evsel, full_paths,
1724 min_pcnt, max_lines, 0);
1725 if (print_lines)
1726 symbol__free_source_line(sym, len);
1727
1728 disasm__purge(&symbol__annotation(sym)->src->source);
1729
1730 return 0;
1731 }
1732
1733 bool ui__has_annotation(void)
1734 {
1735 return use_browser == 1 && perf_hpp_list.sym;
1736 }
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