xref: /openbmc/linux/tools/perf/util/annotate.c (revision d0bd7f2a) 
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 	tok = strchr(name, '>');
69 	if (tok == NULL)
70 		return -1;
71 
72 	*tok = '\0';
73 	ops->target.name = strdup(name);
74 	*tok = '>';
75 
76 	return ops->target.name == NULL ? -1 : 0;
77 
78 indirect_call:
79 	tok = strchr(endptr, '(');
80 	if (tok != NULL) {
81 		ops->target.addr = 0;
82 		return 0;
83 	}
84 
85 	tok = strchr(endptr, '*');
86 	if (tok == NULL)
87 		return -1;
88 
89 	ops->target.addr = strtoull(tok + 1, NULL, 16);
90 	return 0;
91 }
92 
93 static int call__scnprintf(struct ins *ins, char *bf, size_t size,
94 			   struct ins_operands *ops)
95 {
96 	if (ops->target.name)
97 		return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->target.name);
98 
99 	if (ops->target.addr == 0)
100 		return ins__raw_scnprintf(ins, bf, size, ops);
101 
102 	return scnprintf(bf, size, "%-6.6s *%" PRIx64, ins->name, ops->target.addr);
103 }
104 
105 static struct ins_ops call_ops = {
106 	.parse	   = call__parse,
107 	.scnprintf = call__scnprintf,
108 };
109 
110 bool ins__is_call(const struct ins *ins)
111 {
112 	return ins->ops == &call_ops;
113 }
114 
115 static int jump__parse(struct ins_operands *ops)
116 {
117 	const char *s = strchr(ops->raw, '+');
118 
119 	ops->target.addr = strtoull(ops->raw, NULL, 16);
120 
121 	if (s++ != NULL)
122 		ops->target.offset = strtoull(s, NULL, 16);
123 	else
124 		ops->target.offset = UINT64_MAX;
125 
126 	return 0;
127 }
128 
129 static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
130 			   struct ins_operands *ops)
131 {
132 	return scnprintf(bf, size, "%-6.6s %" PRIx64, ins->name, ops->target.offset);
133 }
134 
135 static struct ins_ops jump_ops = {
136 	.parse	   = jump__parse,
137 	.scnprintf = jump__scnprintf,
138 };
139 
140 bool ins__is_jump(const struct ins *ins)
141 {
142 	return ins->ops == &jump_ops;
143 }
144 
145 static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep)
146 {
147 	char *endptr, *name, *t;
148 
149 	if (strstr(raw, "(%rip)") == NULL)
150 		return 0;
151 
152 	*addrp = strtoull(comment, &endptr, 16);
153 	name = strchr(endptr, '<');
154 	if (name == NULL)
155 		return -1;
156 
157 	name++;
158 
159 	t = strchr(name, '>');
160 	if (t == NULL)
161 		return 0;
162 
163 	*t = '\0';
164 	*namep = strdup(name);
165 	*t = '>';
166 
167 	return 0;
168 }
169 
170 static int lock__parse(struct ins_operands *ops)
171 {
172 	char *name;
173 
174 	ops->locked.ops = zalloc(sizeof(*ops->locked.ops));
175 	if (ops->locked.ops == NULL)
176 		return 0;
177 
178 	if (disasm_line__parse(ops->raw, &name, &ops->locked.ops->raw) < 0)
179 		goto out_free_ops;
180 
181 	ops->locked.ins = ins__find(name);
182 	free(name);
183 
184 	if (ops->locked.ins == NULL)
185 		goto out_free_ops;
186 
187 	if (!ops->locked.ins->ops)
188 		return 0;
189 
190 	if (ops->locked.ins->ops->parse &&
191 	    ops->locked.ins->ops->parse(ops->locked.ops) < 0)
192 		goto out_free_ops;
193 
194 	return 0;
195 
196 out_free_ops:
197 	zfree(&ops->locked.ops);
198 	return 0;
199 }
200 
201 static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
202 			   struct ins_operands *ops)
203 {
204 	int printed;
205 
206 	if (ops->locked.ins == NULL)
207 		return ins__raw_scnprintf(ins, bf, size, ops);
208 
209 	printed = scnprintf(bf, size, "%-6.6s ", ins->name);
210 	return printed + ins__scnprintf(ops->locked.ins, bf + printed,
211 					size - printed, ops->locked.ops);
212 }
213 
214 static void lock__delete(struct ins_operands *ops)
215 {
216 	struct ins *ins = ops->locked.ins;
217 
218 	if (ins && ins->ops->free)
219 		ins->ops->free(ops->locked.ops);
220 	else
221 		ins__delete(ops->locked.ops);
222 
223 	zfree(&ops->locked.ops);
224 	zfree(&ops->target.raw);
225 	zfree(&ops->target.name);
226 }
227 
228 static struct ins_ops lock_ops = {
229 	.free	   = lock__delete,
230 	.parse	   = lock__parse,
231 	.scnprintf = lock__scnprintf,
232 };
233 
234 static int mov__parse(struct ins_operands *ops)
235 {
236 	char *s = strchr(ops->raw, ','), *target, *comment, prev;
237 
238 	if (s == NULL)
239 		return -1;
240 
241 	*s = '\0';
242 	ops->source.raw = strdup(ops->raw);
243 	*s = ',';
244 
245 	if (ops->source.raw == NULL)
246 		return -1;
247 
248 	target = ++s;
249 	comment = strchr(s, '#');
250 
251 	if (comment != NULL)
252 		s = comment - 1;
253 	else
254 		s = strchr(s, '\0') - 1;
255 
256 	while (s > target && isspace(s[0]))
257 		--s;
258 	s++;
259 	prev = *s;
260 	*s = '\0';
261 
262 	ops->target.raw = strdup(target);
263 	*s = prev;
264 
265 	if (ops->target.raw == NULL)
266 		goto out_free_source;
267 
268 	if (comment == NULL)
269 		return 0;
270 
271 	while (comment[0] != '\0' && isspace(comment[0]))
272 		++comment;
273 
274 	comment__symbol(ops->source.raw, comment, &ops->source.addr, &ops->source.name);
275 	comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);
276 
277 	return 0;
278 
279 out_free_source:
280 	zfree(&ops->source.raw);
281 	return -1;
282 }
283 
284 static int mov__scnprintf(struct ins *ins, char *bf, size_t size,
285 			   struct ins_operands *ops)
286 {
287 	return scnprintf(bf, size, "%-6.6s %s,%s", ins->name,
288 			 ops->source.name ?: ops->source.raw,
289 			 ops->target.name ?: ops->target.raw);
290 }
291 
292 static struct ins_ops mov_ops = {
293 	.parse	   = mov__parse,
294 	.scnprintf = mov__scnprintf,
295 };
296 
297 static int dec__parse(struct ins_operands *ops)
298 {
299 	char *target, *comment, *s, prev;
300 
301 	target = s = ops->raw;
302 
303 	while (s[0] != '\0' && !isspace(s[0]))
304 		++s;
305 	prev = *s;
306 	*s = '\0';
307 
308 	ops->target.raw = strdup(target);
309 	*s = prev;
310 
311 	if (ops->target.raw == NULL)
312 		return -1;
313 
314 	comment = strchr(s, '#');
315 	if (comment == NULL)
316 		return 0;
317 
318 	while (comment[0] != '\0' && isspace(comment[0]))
319 		++comment;
320 
321 	comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);
322 
323 	return 0;
324 }
325 
326 static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
327 			   struct ins_operands *ops)
328 {
329 	return scnprintf(bf, size, "%-6.6s %s", ins->name,
330 			 ops->target.name ?: ops->target.raw);
331 }
332 
333 static struct ins_ops dec_ops = {
334 	.parse	   = dec__parse,
335 	.scnprintf = dec__scnprintf,
336 };
337 
338 static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size,
339 			  struct ins_operands *ops __maybe_unused)
340 {
341 	return scnprintf(bf, size, "%-6.6s", "nop");
342 }
343 
344 static struct ins_ops nop_ops = {
345 	.scnprintf = nop__scnprintf,
346 };
347 
348 /*
349  * Must be sorted by name!
350  */
351 static struct ins instructions[] = {
352 	{ .name = "add",   .ops  = &mov_ops, },
353 	{ .name = "addl",  .ops  = &mov_ops, },
354 	{ .name = "addq",  .ops  = &mov_ops, },
355 	{ .name = "addw",  .ops  = &mov_ops, },
356 	{ .name = "and",   .ops  = &mov_ops, },
357 	{ .name = "bts",   .ops  = &mov_ops, },
358 	{ .name = "call",  .ops  = &call_ops, },
359 	{ .name = "callq", .ops  = &call_ops, },
360 	{ .name = "cmp",   .ops  = &mov_ops, },
361 	{ .name = "cmpb",  .ops  = &mov_ops, },
362 	{ .name = "cmpl",  .ops  = &mov_ops, },
363 	{ .name = "cmpq",  .ops  = &mov_ops, },
364 	{ .name = "cmpw",  .ops  = &mov_ops, },
365 	{ .name = "cmpxch", .ops  = &mov_ops, },
366 	{ .name = "dec",   .ops  = &dec_ops, },
367 	{ .name = "decl",  .ops  = &dec_ops, },
368 	{ .name = "imul",  .ops  = &mov_ops, },
369 	{ .name = "inc",   .ops  = &dec_ops, },
370 	{ .name = "incl",  .ops  = &dec_ops, },
371 	{ .name = "ja",	   .ops  = &jump_ops, },
372 	{ .name = "jae",   .ops  = &jump_ops, },
373 	{ .name = "jb",	   .ops  = &jump_ops, },
374 	{ .name = "jbe",   .ops  = &jump_ops, },
375 	{ .name = "jc",	   .ops  = &jump_ops, },
376 	{ .name = "jcxz",  .ops  = &jump_ops, },
377 	{ .name = "je",	   .ops  = &jump_ops, },
378 	{ .name = "jecxz", .ops  = &jump_ops, },
379 	{ .name = "jg",	   .ops  = &jump_ops, },
380 	{ .name = "jge",   .ops  = &jump_ops, },
381 	{ .name = "jl",    .ops  = &jump_ops, },
382 	{ .name = "jle",   .ops  = &jump_ops, },
383 	{ .name = "jmp",   .ops  = &jump_ops, },
384 	{ .name = "jmpq",  .ops  = &jump_ops, },
385 	{ .name = "jna",   .ops  = &jump_ops, },
386 	{ .name = "jnae",  .ops  = &jump_ops, },
387 	{ .name = "jnb",   .ops  = &jump_ops, },
388 	{ .name = "jnbe",  .ops  = &jump_ops, },
389 	{ .name = "jnc",   .ops  = &jump_ops, },
390 	{ .name = "jne",   .ops  = &jump_ops, },
391 	{ .name = "jng",   .ops  = &jump_ops, },
392 	{ .name = "jnge",  .ops  = &jump_ops, },
393 	{ .name = "jnl",   .ops  = &jump_ops, },
394 	{ .name = "jnle",  .ops  = &jump_ops, },
395 	{ .name = "jno",   .ops  = &jump_ops, },
396 	{ .name = "jnp",   .ops  = &jump_ops, },
397 	{ .name = "jns",   .ops  = &jump_ops, },
398 	{ .name = "jnz",   .ops  = &jump_ops, },
399 	{ .name = "jo",	   .ops  = &jump_ops, },
400 	{ .name = "jp",	   .ops  = &jump_ops, },
401 	{ .name = "jpe",   .ops  = &jump_ops, },
402 	{ .name = "jpo",   .ops  = &jump_ops, },
403 	{ .name = "jrcxz", .ops  = &jump_ops, },
404 	{ .name = "js",	   .ops  = &jump_ops, },
405 	{ .name = "jz",	   .ops  = &jump_ops, },
406 	{ .name = "lea",   .ops  = &mov_ops, },
407 	{ .name = "lock",  .ops  = &lock_ops, },
408 	{ .name = "mov",   .ops  = &mov_ops, },
409 	{ .name = "movb",  .ops  = &mov_ops, },
410 	{ .name = "movdqa",.ops  = &mov_ops, },
411 	{ .name = "movl",  .ops  = &mov_ops, },
412 	{ .name = "movq",  .ops  = &mov_ops, },
413 	{ .name = "movslq", .ops  = &mov_ops, },
414 	{ .name = "movzbl", .ops  = &mov_ops, },
415 	{ .name = "movzwl", .ops  = &mov_ops, },
416 	{ .name = "nop",   .ops  = &nop_ops, },
417 	{ .name = "nopl",  .ops  = &nop_ops, },
418 	{ .name = "nopw",  .ops  = &nop_ops, },
419 	{ .name = "or",    .ops  = &mov_ops, },
420 	{ .name = "orl",   .ops  = &mov_ops, },
421 	{ .name = "test",  .ops  = &mov_ops, },
422 	{ .name = "testb", .ops  = &mov_ops, },
423 	{ .name = "testl", .ops  = &mov_ops, },
424 	{ .name = "xadd",  .ops  = &mov_ops, },
425 	{ .name = "xbeginl", .ops  = &jump_ops, },
426 	{ .name = "xbeginq", .ops  = &jump_ops, },
427 };
428 
429 static int ins__cmp(const void *name, const void *insp)
430 {
431 	const struct ins *ins = insp;
432 
433 	return strcmp(name, ins->name);
434 }
435 
436 static struct ins *ins__find(const char *name)
437 {
438 	const int nmemb = ARRAY_SIZE(instructions);
439 
440 	return bsearch(name, instructions, nmemb, sizeof(struct ins), ins__cmp);
441 }
442 
443 int symbol__annotate_init(struct map *map __maybe_unused, struct symbol *sym)
444 {
445 	struct annotation *notes = symbol__annotation(sym);
446 	pthread_mutex_init(&notes->lock, NULL);
447 	return 0;
448 }
449 
450 int symbol__alloc_hist(struct symbol *sym)
451 {
452 	struct annotation *notes = symbol__annotation(sym);
453 	const size_t size = symbol__size(sym);
454 	size_t sizeof_sym_hist;
455 
456 	/* Check for overflow when calculating sizeof_sym_hist */
457 	if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(u64))
458 		return -1;
459 
460 	sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(u64));
461 
462 	/* Check for overflow in zalloc argument */
463 	if (sizeof_sym_hist > (SIZE_MAX - sizeof(*notes->src))
464 				/ symbol_conf.nr_events)
465 		return -1;
466 
467 	notes->src = zalloc(sizeof(*notes->src) + symbol_conf.nr_events * sizeof_sym_hist);
468 	if (notes->src == NULL)
469 		return -1;
470 	notes->src->sizeof_sym_hist = sizeof_sym_hist;
471 	notes->src->nr_histograms   = symbol_conf.nr_events;
472 	INIT_LIST_HEAD(&notes->src->source);
473 	return 0;
474 }
475 
476 void symbol__annotate_zero_histograms(struct symbol *sym)
477 {
478 	struct annotation *notes = symbol__annotation(sym);
479 
480 	pthread_mutex_lock(&notes->lock);
481 	if (notes->src != NULL)
482 		memset(notes->src->histograms, 0,
483 		       notes->src->nr_histograms * notes->src->sizeof_sym_hist);
484 	pthread_mutex_unlock(&notes->lock);
485 }
486 
487 static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
488 				      struct annotation *notes, int evidx, u64 addr)
489 {
490 	unsigned offset;
491 	struct sym_hist *h;
492 
493 	pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr));
494 
495 	if (addr < sym->start || addr >= sym->end)
496 		return -ERANGE;
497 
498 	offset = addr - sym->start;
499 	h = annotation__histogram(notes, evidx);
500 	h->sum++;
501 	h->addr[offset]++;
502 
503 	pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64
504 		  ", evidx=%d] => %" PRIu64 "\n", sym->start, sym->name,
505 		  addr, addr - sym->start, evidx, h->addr[offset]);
506 	return 0;
507 }
508 
509 static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
510 				    int evidx, u64 addr)
511 {
512 	struct annotation *notes;
513 
514 	if (sym == NULL)
515 		return 0;
516 
517 	notes = symbol__annotation(sym);
518 	if (notes->src == NULL) {
519 		if (symbol__alloc_hist(sym) < 0)
520 			return -ENOMEM;
521 	}
522 
523 	return __symbol__inc_addr_samples(sym, map, notes, evidx, addr);
524 }
525 
526 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, int evidx)
527 {
528 	return symbol__inc_addr_samples(ams->sym, ams->map, evidx, ams->al_addr);
529 }
530 
531 int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 ip)
532 {
533 	return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evidx, ip);
534 }
535 
536 static void disasm_line__init_ins(struct disasm_line *dl)
537 {
538 	dl->ins = ins__find(dl->name);
539 
540 	if (dl->ins == NULL)
541 		return;
542 
543 	if (!dl->ins->ops)
544 		return;
545 
546 	if (dl->ins->ops->parse && dl->ins->ops->parse(&dl->ops) < 0)
547 		dl->ins = NULL;
548 }
549 
550 static int disasm_line__parse(char *line, char **namep, char **rawp)
551 {
552 	char *name = line, tmp;
553 
554 	while (isspace(name[0]))
555 		++name;
556 
557 	if (name[0] == '\0')
558 		return -1;
559 
560 	*rawp = name + 1;
561 
562 	while ((*rawp)[0] != '\0' && !isspace((*rawp)[0]))
563 		++*rawp;
564 
565 	tmp = (*rawp)[0];
566 	(*rawp)[0] = '\0';
567 	*namep = strdup(name);
568 
569 	if (*namep == NULL)
570 		goto out_free_name;
571 
572 	(*rawp)[0] = tmp;
573 
574 	if ((*rawp)[0] != '\0') {
575 		(*rawp)++;
576 		while (isspace((*rawp)[0]))
577 			++(*rawp);
578 	}
579 
580 	return 0;
581 
582 out_free_name:
583 	zfree(namep);
584 	return -1;
585 }
586 
587 static struct disasm_line *disasm_line__new(s64 offset, char *line,
588 					size_t privsize, int line_nr)
589 {
590 	struct disasm_line *dl = zalloc(sizeof(*dl) + privsize);
591 
592 	if (dl != NULL) {
593 		dl->offset = offset;
594 		dl->line = strdup(line);
595 		dl->line_nr = line_nr;
596 		if (dl->line == NULL)
597 			goto out_delete;
598 
599 		if (offset != -1) {
600 			if (disasm_line__parse(dl->line, &dl->name, &dl->ops.raw) < 0)
601 				goto out_free_line;
602 
603 			disasm_line__init_ins(dl);
604 		}
605 	}
606 
607 	return dl;
608 
609 out_free_line:
610 	zfree(&dl->line);
611 out_delete:
612 	free(dl);
613 	return NULL;
614 }
615 
616 void disasm_line__free(struct disasm_line *dl)
617 {
618 	zfree(&dl->line);
619 	zfree(&dl->name);
620 	if (dl->ins && dl->ins->ops->free)
621 		dl->ins->ops->free(&dl->ops);
622 	else
623 		ins__delete(&dl->ops);
624 	free(dl);
625 }
626 
627 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw)
628 {
629 	if (raw || !dl->ins)
630 		return scnprintf(bf, size, "%-6.6s %s", dl->name, dl->ops.raw);
631 
632 	return ins__scnprintf(dl->ins, bf, size, &dl->ops);
633 }
634 
635 static void disasm__add(struct list_head *head, struct disasm_line *line)
636 {
637 	list_add_tail(&line->node, head);
638 }
639 
640 struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disasm_line *pos)
641 {
642 	list_for_each_entry_continue(pos, head, node)
643 		if (pos->offset >= 0)
644 			return pos;
645 
646 	return NULL;
647 }
648 
649 double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset,
650 			    s64 end, const char **path)
651 {
652 	struct source_line *src_line = notes->src->lines;
653 	double percent = 0.0;
654 
655 	if (src_line) {
656 		size_t sizeof_src_line = sizeof(*src_line) +
657 				sizeof(src_line->p) * (src_line->nr_pcnt - 1);
658 
659 		while (offset < end) {
660 			src_line = (void *)notes->src->lines +
661 					(sizeof_src_line * offset);
662 
663 			if (*path == NULL)
664 				*path = src_line->path;
665 
666 			percent += src_line->p[evidx].percent;
667 			offset++;
668 		}
669 	} else {
670 		struct sym_hist *h = annotation__histogram(notes, evidx);
671 		unsigned int hits = 0;
672 
673 		while (offset < end)
674 			hits += h->addr[offset++];
675 
676 		if (h->sum)
677 			percent = 100.0 * hits / h->sum;
678 	}
679 
680 	return percent;
681 }
682 
683 static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 start,
684 		      struct perf_evsel *evsel, u64 len, int min_pcnt, int printed,
685 		      int max_lines, struct disasm_line *queue)
686 {
687 	static const char *prev_line;
688 	static const char *prev_color;
689 
690 	if (dl->offset != -1) {
691 		const char *path = NULL;
692 		double percent, max_percent = 0.0;
693 		double *ppercents = &percent;
694 		int i, nr_percent = 1;
695 		const char *color;
696 		struct annotation *notes = symbol__annotation(sym);
697 		s64 offset = dl->offset;
698 		const u64 addr = start + offset;
699 		struct disasm_line *next;
700 
701 		next = disasm__get_next_ip_line(&notes->src->source, dl);
702 
703 		if (perf_evsel__is_group_event(evsel)) {
704 			nr_percent = evsel->nr_members;
705 			ppercents = calloc(nr_percent, sizeof(double));
706 			if (ppercents == NULL)
707 				return -1;
708 		}
709 
710 		for (i = 0; i < nr_percent; i++) {
711 			percent = disasm__calc_percent(notes,
712 					notes->src->lines ? i : evsel->idx + i,
713 					offset,
714 					next ? next->offset : (s64) len,
715 					&path);
716 
717 			ppercents[i] = percent;
718 			if (percent > max_percent)
719 				max_percent = percent;
720 		}
721 
722 		if (max_percent < min_pcnt)
723 			return -1;
724 
725 		if (max_lines && printed >= max_lines)
726 			return 1;
727 
728 		if (queue != NULL) {
729 			list_for_each_entry_from(queue, &notes->src->source, node) {
730 				if (queue == dl)
731 					break;
732 				disasm_line__print(queue, sym, start, evsel, len,
733 						    0, 0, 1, NULL);
734 			}
735 		}
736 
737 		color = get_percent_color(max_percent);
738 
739 		/*
740 		 * Also color the filename and line if needed, with
741 		 * the same color than the percentage. Don't print it
742 		 * twice for close colored addr with the same filename:line
743 		 */
744 		if (path) {
745 			if (!prev_line || strcmp(prev_line, path)
746 				       || color != prev_color) {
747 				color_fprintf(stdout, color, " %s", path);
748 				prev_line = path;
749 				prev_color = color;
750 			}
751 		}
752 
753 		for (i = 0; i < nr_percent; i++) {
754 			percent = ppercents[i];
755 			color = get_percent_color(percent);
756 			color_fprintf(stdout, color, " %7.2f", percent);
757 		}
758 
759 		printf(" :	");
760 		color_fprintf(stdout, PERF_COLOR_MAGENTA, "  %" PRIx64 ":", addr);
761 		color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", dl->line);
762 
763 		if (ppercents != &percent)
764 			free(ppercents);
765 
766 	} else if (max_lines && printed >= max_lines)
767 		return 1;
768 	else {
769 		int width = 8;
770 
771 		if (queue)
772 			return -1;
773 
774 		if (perf_evsel__is_group_event(evsel))
775 			width *= evsel->nr_members;
776 
777 		if (!*dl->line)
778 			printf(" %*s:\n", width, " ");
779 		else
780 			printf(" %*s:	%s\n", width, " ", dl->line);
781 	}
782 
783 	return 0;
784 }
785 
786 /*
787  * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw)
788  * which looks like following
789  *
790  *  0000000000415500 <_init>:
791  *    415500:       sub    $0x8,%rsp
792  *    415504:       mov    0x2f5ad5(%rip),%rax        # 70afe0 <_DYNAMIC+0x2f8>
793  *    41550b:       test   %rax,%rax
794  *    41550e:       je     415515 <_init+0x15>
795  *    415510:       callq  416e70 <__gmon_start__@plt>
796  *    415515:       add    $0x8,%rsp
797  *    415519:       retq
798  *
799  * it will be parsed and saved into struct disasm_line as
800  *  <offset>       <name>  <ops.raw>
801  *
802  * The offset will be a relative offset from the start of the symbol and -1
803  * means that it's not a disassembly line so should be treated differently.
804  * The ops.raw part will be parsed further according to type of the instruction.
805  */
806 static int symbol__parse_objdump_line(struct symbol *sym, struct map *map,
807 				      FILE *file, size_t privsize,
808 				      int *line_nr)
809 {
810 	struct annotation *notes = symbol__annotation(sym);
811 	struct disasm_line *dl;
812 	char *line = NULL, *parsed_line, *tmp, *tmp2, *c;
813 	size_t line_len;
814 	s64 line_ip, offset = -1;
815 	regmatch_t match[2];
816 
817 	if (getline(&line, &line_len, file) < 0)
818 		return -1;
819 
820 	if (!line)
821 		return -1;
822 
823 	while (line_len != 0 && isspace(line[line_len - 1]))
824 		line[--line_len] = '\0';
825 
826 	c = strchr(line, '\n');
827 	if (c)
828 		*c = 0;
829 
830 	line_ip = -1;
831 	parsed_line = line;
832 
833 	/* /filename:linenr ? Save line number and ignore. */
834 	if (regexec(&file_lineno, line, 2, match, 0) == 0) {
835 		*line_nr = atoi(line + match[1].rm_so);
836 		return 0;
837 	}
838 
839 	/*
840 	 * Strip leading spaces:
841 	 */
842 	tmp = line;
843 	while (*tmp) {
844 		if (*tmp != ' ')
845 			break;
846 		tmp++;
847 	}
848 
849 	if (*tmp) {
850 		/*
851 		 * Parse hexa addresses followed by ':'
852 		 */
853 		line_ip = strtoull(tmp, &tmp2, 16);
854 		if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0')
855 			line_ip = -1;
856 	}
857 
858 	if (line_ip != -1) {
859 		u64 start = map__rip_2objdump(map, sym->start),
860 		    end = map__rip_2objdump(map, sym->end);
861 
862 		offset = line_ip - start;
863 		if ((u64)line_ip < start || (u64)line_ip >= end)
864 			offset = -1;
865 		else
866 			parsed_line = tmp2 + 1;
867 	}
868 
869 	dl = disasm_line__new(offset, parsed_line, privsize, *line_nr);
870 	free(line);
871 	(*line_nr)++;
872 
873 	if (dl == NULL)
874 		return -1;
875 
876 	if (dl->ops.target.offset == UINT64_MAX)
877 		dl->ops.target.offset = dl->ops.target.addr -
878 					map__rip_2objdump(map, sym->start);
879 
880 	/* kcore has no symbols, so add the call target name */
881 	if (dl->ins && ins__is_call(dl->ins) && !dl->ops.target.name) {
882 		struct addr_map_symbol target = {
883 			.map = map,
884 			.addr = dl->ops.target.addr,
885 		};
886 
887 		if (!map_groups__find_ams(&target, NULL) &&
888 		    target.sym->start == target.al_addr)
889 			dl->ops.target.name = strdup(target.sym->name);
890 	}
891 
892 	disasm__add(&notes->src->source, dl);
893 
894 	return 0;
895 }
896 
897 static __attribute__((constructor)) void symbol__init_regexpr(void)
898 {
899 	regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED);
900 }
901 
902 static void delete_last_nop(struct symbol *sym)
903 {
904 	struct annotation *notes = symbol__annotation(sym);
905 	struct list_head *list = &notes->src->source;
906 	struct disasm_line *dl;
907 
908 	while (!list_empty(list)) {
909 		dl = list_entry(list->prev, struct disasm_line, node);
910 
911 		if (dl->ins && dl->ins->ops) {
912 			if (dl->ins->ops != &nop_ops)
913 				return;
914 		} else {
915 			if (!strstr(dl->line, " nop ") &&
916 			    !strstr(dl->line, " nopl ") &&
917 			    !strstr(dl->line, " nopw "))
918 				return;
919 		}
920 
921 		list_del(&dl->node);
922 		disasm_line__free(dl);
923 	}
924 }
925 
926 int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize)
927 {
928 	struct dso *dso = map->dso;
929 	char *filename = dso__build_id_filename(dso, NULL, 0);
930 	bool free_filename = true;
931 	char command[PATH_MAX * 2];
932 	FILE *file;
933 	int err = 0;
934 	char symfs_filename[PATH_MAX];
935 	struct kcore_extract kce;
936 	bool delete_extract = false;
937 	int lineno = 0;
938 
939 	if (filename)
940 		symbol__join_symfs(symfs_filename, filename);
941 
942 	if (filename == NULL) {
943 		if (dso->has_build_id) {
944 			pr_err("Can't annotate %s: not enough memory\n",
945 			       sym->name);
946 			return -ENOMEM;
947 		}
948 		goto fallback;
949 	} else if (dso__is_kcore(dso)) {
950 		goto fallback;
951 	} else if (readlink(symfs_filename, command, sizeof(command)) < 0 ||
952 		   strstr(command, "[kernel.kallsyms]") ||
953 		   access(symfs_filename, R_OK)) {
954 		free(filename);
955 fallback:
956 		/*
957 		 * If we don't have build-ids or the build-id file isn't in the
958 		 * cache, or is just a kallsyms file, well, lets hope that this
959 		 * DSO is the same as when 'perf record' ran.
960 		 */
961 		filename = (char *)dso->long_name;
962 		symbol__join_symfs(symfs_filename, filename);
963 		free_filename = false;
964 	}
965 
966 	if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
967 	    !dso__is_kcore(dso)) {
968 		char bf[BUILD_ID_SIZE * 2 + 16] = " with build id ";
969 		char *build_id_msg = NULL;
970 
971 		if (dso->annotate_warned)
972 			goto out_free_filename;
973 
974 		if (dso->has_build_id) {
975 			build_id__sprintf(dso->build_id,
976 					  sizeof(dso->build_id), bf + 15);
977 			build_id_msg = bf;
978 		}
979 		err = -ENOENT;
980 		dso->annotate_warned = 1;
981 		pr_err("Can't annotate %s:\n\n"
982 		       "No vmlinux file%s\nwas found in the path.\n\n"
983 		       "Please use:\n\n"
984 		       "  perf buildid-cache -vu vmlinux\n\n"
985 		       "or:\n\n"
986 		       "  --vmlinux vmlinux\n",
987 		       sym->name, build_id_msg ?: "");
988 		goto out_free_filename;
989 	}
990 
991 	pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
992 		 filename, sym->name, map->unmap_ip(map, sym->start),
993 		 map->unmap_ip(map, sym->end));
994 
995 	pr_debug("annotating [%p] %30s : [%p] %30s\n",
996 		 dso, dso->long_name, sym, sym->name);
997 
998 	if (dso__is_kcore(dso)) {
999 		kce.kcore_filename = symfs_filename;
1000 		kce.addr = map__rip_2objdump(map, sym->start);
1001 		kce.offs = sym->start;
1002 		kce.len = sym->end - sym->start;
1003 		if (!kcore_extract__create(&kce)) {
1004 			delete_extract = true;
1005 			strlcpy(symfs_filename, kce.extract_filename,
1006 				sizeof(symfs_filename));
1007 			if (free_filename) {
1008 				free(filename);
1009 				free_filename = false;
1010 			}
1011 			filename = symfs_filename;
1012 		}
1013 	} else if (dso__needs_decompress(dso)) {
1014 		char tmp[PATH_MAX];
1015 		struct kmod_path m;
1016 		int fd;
1017 		bool ret;
1018 
1019 		if (kmod_path__parse_ext(&m, symfs_filename))
1020 			goto out_free_filename;
1021 
1022 		snprintf(tmp, PATH_MAX, "/tmp/perf-kmod-XXXXXX");
1023 
1024 		fd = mkstemp(tmp);
1025 		if (fd < 0) {
1026 			free(m.ext);
1027 			goto out_free_filename;
1028 		}
1029 
1030 		ret = decompress_to_file(m.ext, symfs_filename, fd);
1031 
1032 		free(m.ext);
1033 		close(fd);
1034 
1035 		if (!ret)
1036 			goto out_free_filename;
1037 
1038 		strcpy(symfs_filename, tmp);
1039 	}
1040 
1041 	snprintf(command, sizeof(command),
1042 		 "%s %s%s --start-address=0x%016" PRIx64
1043 		 " --stop-address=0x%016" PRIx64
1044 		 " -l -d %s %s -C %s 2>/dev/null|grep -v %s|expand",
1045 		 objdump_path ? objdump_path : "objdump",
1046 		 disassembler_style ? "-M " : "",
1047 		 disassembler_style ? disassembler_style : "",
1048 		 map__rip_2objdump(map, sym->start),
1049 		 map__rip_2objdump(map, sym->end),
1050 		 symbol_conf.annotate_asm_raw ? "" : "--no-show-raw",
1051 		 symbol_conf.annotate_src ? "-S" : "",
1052 		 symfs_filename, filename);
1053 
1054 	pr_debug("Executing: %s\n", command);
1055 
1056 	file = popen(command, "r");
1057 	if (!file)
1058 		goto out_remove_tmp;
1059 
1060 	while (!feof(file))
1061 		if (symbol__parse_objdump_line(sym, map, file, privsize,
1062 			    &lineno) < 0)
1063 			break;
1064 
1065 	/*
1066 	 * kallsyms does not have symbol sizes so there may a nop at the end.
1067 	 * Remove it.
1068 	 */
1069 	if (dso__is_kcore(dso))
1070 		delete_last_nop(sym);
1071 
1072 	pclose(file);
1073 
1074 out_remove_tmp:
1075 	if (dso__needs_decompress(dso))
1076 		unlink(symfs_filename);
1077 out_free_filename:
1078 	if (delete_extract)
1079 		kcore_extract__delete(&kce);
1080 	if (free_filename)
1081 		free(filename);
1082 	return err;
1083 }
1084 
1085 static void insert_source_line(struct rb_root *root, struct source_line *src_line)
1086 {
1087 	struct source_line *iter;
1088 	struct rb_node **p = &root->rb_node;
1089 	struct rb_node *parent = NULL;
1090 	int i, ret;
1091 
1092 	while (*p != NULL) {
1093 		parent = *p;
1094 		iter = rb_entry(parent, struct source_line, node);
1095 
1096 		ret = strcmp(iter->path, src_line->path);
1097 		if (ret == 0) {
1098 			for (i = 0; i < src_line->nr_pcnt; i++)
1099 				iter->p[i].percent_sum += src_line->p[i].percent;
1100 			return;
1101 		}
1102 
1103 		if (ret < 0)
1104 			p = &(*p)->rb_left;
1105 		else
1106 			p = &(*p)->rb_right;
1107 	}
1108 
1109 	for (i = 0; i < src_line->nr_pcnt; i++)
1110 		src_line->p[i].percent_sum = src_line->p[i].percent;
1111 
1112 	rb_link_node(&src_line->node, parent, p);
1113 	rb_insert_color(&src_line->node, root);
1114 }
1115 
1116 static int cmp_source_line(struct source_line *a, struct source_line *b)
1117 {
1118 	int i;
1119 
1120 	for (i = 0; i < a->nr_pcnt; i++) {
1121 		if (a->p[i].percent_sum == b->p[i].percent_sum)
1122 			continue;
1123 		return a->p[i].percent_sum > b->p[i].percent_sum;
1124 	}
1125 
1126 	return 0;
1127 }
1128 
1129 static void __resort_source_line(struct rb_root *root, struct source_line *src_line)
1130 {
1131 	struct source_line *iter;
1132 	struct rb_node **p = &root->rb_node;
1133 	struct rb_node *parent = NULL;
1134 
1135 	while (*p != NULL) {
1136 		parent = *p;
1137 		iter = rb_entry(parent, struct source_line, node);
1138 
1139 		if (cmp_source_line(src_line, iter))
1140 			p = &(*p)->rb_left;
1141 		else
1142 			p = &(*p)->rb_right;
1143 	}
1144 
1145 	rb_link_node(&src_line->node, parent, p);
1146 	rb_insert_color(&src_line->node, root);
1147 }
1148 
1149 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
1150 {
1151 	struct source_line *src_line;
1152 	struct rb_node *node;
1153 
1154 	node = rb_first(src_root);
1155 	while (node) {
1156 		struct rb_node *next;
1157 
1158 		src_line = rb_entry(node, struct source_line, node);
1159 		next = rb_next(node);
1160 		rb_erase(node, src_root);
1161 
1162 		__resort_source_line(dest_root, src_line);
1163 		node = next;
1164 	}
1165 }
1166 
1167 static void symbol__free_source_line(struct symbol *sym, int len)
1168 {
1169 	struct annotation *notes = symbol__annotation(sym);
1170 	struct source_line *src_line = notes->src->lines;
1171 	size_t sizeof_src_line;
1172 	int i;
1173 
1174 	sizeof_src_line = sizeof(*src_line) +
1175 			  (sizeof(src_line->p) * (src_line->nr_pcnt - 1));
1176 
1177 	for (i = 0; i < len; i++) {
1178 		free_srcline(src_line->path);
1179 		src_line = (void *)src_line + sizeof_src_line;
1180 	}
1181 
1182 	zfree(&notes->src->lines);
1183 }
1184 
1185 /* Get the filename:line for the colored entries */
1186 static int symbol__get_source_line(struct symbol *sym, struct map *map,
1187 				   struct perf_evsel *evsel,
1188 				   struct rb_root *root, int len)
1189 {
1190 	u64 start;
1191 	int i, k;
1192 	int evidx = evsel->idx;
1193 	struct source_line *src_line;
1194 	struct annotation *notes = symbol__annotation(sym);
1195 	struct sym_hist *h = annotation__histogram(notes, evidx);
1196 	struct rb_root tmp_root = RB_ROOT;
1197 	int nr_pcnt = 1;
1198 	u64 h_sum = h->sum;
1199 	size_t sizeof_src_line = sizeof(struct source_line);
1200 
1201 	if (perf_evsel__is_group_event(evsel)) {
1202 		for (i = 1; i < evsel->nr_members; i++) {
1203 			h = annotation__histogram(notes, evidx + i);
1204 			h_sum += h->sum;
1205 		}
1206 		nr_pcnt = evsel->nr_members;
1207 		sizeof_src_line += (nr_pcnt - 1) * sizeof(src_line->p);
1208 	}
1209 
1210 	if (!h_sum)
1211 		return 0;
1212 
1213 	src_line = notes->src->lines = calloc(len, sizeof_src_line);
1214 	if (!notes->src->lines)
1215 		return -1;
1216 
1217 	start = map__rip_2objdump(map, sym->start);
1218 
1219 	for (i = 0; i < len; i++) {
1220 		u64 offset;
1221 		double percent_max = 0.0;
1222 
1223 		src_line->nr_pcnt = nr_pcnt;
1224 
1225 		for (k = 0; k < nr_pcnt; k++) {
1226 			h = annotation__histogram(notes, evidx + k);
1227 			src_line->p[k].percent = 100.0 * h->addr[i] / h->sum;
1228 
1229 			if (src_line->p[k].percent > percent_max)
1230 				percent_max = src_line->p[k].percent;
1231 		}
1232 
1233 		if (percent_max <= 0.5)
1234 			goto next;
1235 
1236 		offset = start + i;
1237 		src_line->path = get_srcline(map->dso, offset, NULL, false);
1238 		insert_source_line(&tmp_root, src_line);
1239 
1240 	next:
1241 		src_line = (void *)src_line + sizeof_src_line;
1242 	}
1243 
1244 	resort_source_line(root, &tmp_root);
1245 	return 0;
1246 }
1247 
1248 static void print_summary(struct rb_root *root, const char *filename)
1249 {
1250 	struct source_line *src_line;
1251 	struct rb_node *node;
1252 
1253 	printf("\nSorted summary for file %s\n", filename);
1254 	printf("----------------------------------------------\n\n");
1255 
1256 	if (RB_EMPTY_ROOT(root)) {
1257 		printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
1258 		return;
1259 	}
1260 
1261 	node = rb_first(root);
1262 	while (node) {
1263 		double percent, percent_max = 0.0;
1264 		const char *color;
1265 		char *path;
1266 		int i;
1267 
1268 		src_line = rb_entry(node, struct source_line, node);
1269 		for (i = 0; i < src_line->nr_pcnt; i++) {
1270 			percent = src_line->p[i].percent_sum;
1271 			color = get_percent_color(percent);
1272 			color_fprintf(stdout, color, " %7.2f", percent);
1273 
1274 			if (percent > percent_max)
1275 				percent_max = percent;
1276 		}
1277 
1278 		path = src_line->path;
1279 		color = get_percent_color(percent_max);
1280 		color_fprintf(stdout, color, " %s\n", path);
1281 
1282 		node = rb_next(node);
1283 	}
1284 }
1285 
1286 static void symbol__annotate_hits(struct symbol *sym, struct perf_evsel *evsel)
1287 {
1288 	struct annotation *notes = symbol__annotation(sym);
1289 	struct sym_hist *h = annotation__histogram(notes, evsel->idx);
1290 	u64 len = symbol__size(sym), offset;
1291 
1292 	for (offset = 0; offset < len; ++offset)
1293 		if (h->addr[offset] != 0)
1294 			printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
1295 			       sym->start + offset, h->addr[offset]);
1296 	printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->sum", h->sum);
1297 }
1298 
1299 int symbol__annotate_printf(struct symbol *sym, struct map *map,
1300 			    struct perf_evsel *evsel, bool full_paths,
1301 			    int min_pcnt, int max_lines, int context)
1302 {
1303 	struct dso *dso = map->dso;
1304 	char *filename;
1305 	const char *d_filename;
1306 	const char *evsel_name = perf_evsel__name(evsel);
1307 	struct annotation *notes = symbol__annotation(sym);
1308 	struct disasm_line *pos, *queue = NULL;
1309 	u64 start = map__rip_2objdump(map, sym->start);
1310 	int printed = 2, queue_len = 0;
1311 	int more = 0;
1312 	u64 len;
1313 	int width = 8;
1314 	int namelen, evsel_name_len, graph_dotted_len;
1315 
1316 	filename = strdup(dso->long_name);
1317 	if (!filename)
1318 		return -ENOMEM;
1319 
1320 	if (full_paths)
1321 		d_filename = filename;
1322 	else
1323 		d_filename = basename(filename);
1324 
1325 	len = symbol__size(sym);
1326 	namelen = strlen(d_filename);
1327 	evsel_name_len = strlen(evsel_name);
1328 
1329 	if (perf_evsel__is_group_event(evsel))
1330 		width *= evsel->nr_members;
1331 
1332 	printf(" %-*.*s|	Source code & Disassembly of %s for %s\n",
1333 	       width, width, "Percent", d_filename, evsel_name);
1334 
1335 	graph_dotted_len = width + namelen + evsel_name_len;
1336 	printf("-%-*.*s-----------------------------------------\n",
1337 	       graph_dotted_len, graph_dotted_len, graph_dotted_line);
1338 
1339 	if (verbose)
1340 		symbol__annotate_hits(sym, evsel);
1341 
1342 	list_for_each_entry(pos, &notes->src->source, node) {
1343 		if (context && queue == NULL) {
1344 			queue = pos;
1345 			queue_len = 0;
1346 		}
1347 
1348 		switch (disasm_line__print(pos, sym, start, evsel, len,
1349 					    min_pcnt, printed, max_lines,
1350 					    queue)) {
1351 		case 0:
1352 			++printed;
1353 			if (context) {
1354 				printed += queue_len;
1355 				queue = NULL;
1356 				queue_len = 0;
1357 			}
1358 			break;
1359 		case 1:
1360 			/* filtered by max_lines */
1361 			++more;
1362 			break;
1363 		case -1:
1364 		default:
1365 			/*
1366 			 * Filtered by min_pcnt or non IP lines when
1367 			 * context != 0
1368 			 */
1369 			if (!context)
1370 				break;
1371 			if (queue_len == context)
1372 				queue = list_entry(queue->node.next, typeof(*queue), node);
1373 			else
1374 				++queue_len;
1375 			break;
1376 		}
1377 	}
1378 
1379 	free(filename);
1380 
1381 	return more;
1382 }
1383 
1384 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
1385 {
1386 	struct annotation *notes = symbol__annotation(sym);
1387 	struct sym_hist *h = annotation__histogram(notes, evidx);
1388 
1389 	memset(h, 0, notes->src->sizeof_sym_hist);
1390 }
1391 
1392 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
1393 {
1394 	struct annotation *notes = symbol__annotation(sym);
1395 	struct sym_hist *h = annotation__histogram(notes, evidx);
1396 	int len = symbol__size(sym), offset;
1397 
1398 	h->sum = 0;
1399 	for (offset = 0; offset < len; ++offset) {
1400 		h->addr[offset] = h->addr[offset] * 7 / 8;
1401 		h->sum += h->addr[offset];
1402 	}
1403 }
1404 
1405 void disasm__purge(struct list_head *head)
1406 {
1407 	struct disasm_line *pos, *n;
1408 
1409 	list_for_each_entry_safe(pos, n, head, node) {
1410 		list_del(&pos->node);
1411 		disasm_line__free(pos);
1412 	}
1413 }
1414 
1415 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
1416 {
1417 	size_t printed;
1418 
1419 	if (dl->offset == -1)
1420 		return fprintf(fp, "%s\n", dl->line);
1421 
1422 	printed = fprintf(fp, "%#" PRIx64 " %s", dl->offset, dl->name);
1423 
1424 	if (dl->ops.raw[0] != '\0') {
1425 		printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
1426 				   dl->ops.raw);
1427 	}
1428 
1429 	return printed + fprintf(fp, "\n");
1430 }
1431 
1432 size_t disasm__fprintf(struct list_head *head, FILE *fp)
1433 {
1434 	struct disasm_line *pos;
1435 	size_t printed = 0;
1436 
1437 	list_for_each_entry(pos, head, node)
1438 		printed += disasm_line__fprintf(pos, fp);
1439 
1440 	return printed;
1441 }
1442 
1443 int symbol__tty_annotate(struct symbol *sym, struct map *map,
1444 			 struct perf_evsel *evsel, bool print_lines,
1445 			 bool full_paths, int min_pcnt, int max_lines)
1446 {
1447 	struct dso *dso = map->dso;
1448 	struct rb_root source_line = RB_ROOT;
1449 	u64 len;
1450 
1451 	if (symbol__annotate(sym, map, 0) < 0)
1452 		return -1;
1453 
1454 	len = symbol__size(sym);
1455 
1456 	if (print_lines) {
1457 		symbol__get_source_line(sym, map, evsel, &source_line, len);
1458 		print_summary(&source_line, dso->long_name);
1459 	}
1460 
1461 	symbol__annotate_printf(sym, map, evsel, full_paths,
1462 				min_pcnt, max_lines, 0);
1463 	if (print_lines)
1464 		symbol__free_source_line(sym, len);
1465 
1466 	disasm__purge(&symbol__annotation(sym)->src->source);
1467 
1468 	return 0;
1469 }
1470 
1471 int hist_entry__annotate(struct hist_entry *he, size_t privsize)
1472 {
1473 	return symbol__annotate(he->ms.sym, he->ms.map, privsize);
1474 }
1475 
1476 bool ui__has_annotation(void)
1477 {
1478 	return use_browser == 1 && sort__has_sym;
1479 }
1480