xref: /openbmc/linux/tools/perf/util/annotate.c (revision 5e29a910) 
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 	zfree(&ops->source.raw);
34 	zfree(&ops->source.name);
35 	zfree(&ops->target.raw);
36 	zfree(&ops->target.name);
37 }
38 
39 static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size,
40 			      struct ins_operands *ops)
41 {
42 	return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->raw);
43 }
44 
45 int ins__scnprintf(struct ins *ins, char *bf, size_t size,
46 		  struct ins_operands *ops)
47 {
48 	if (ins->ops->scnprintf)
49 		return ins->ops->scnprintf(ins, bf, size, ops);
50 
51 	return ins__raw_scnprintf(ins, bf, size, ops);
52 }
53 
54 static int call__parse(struct ins_operands *ops)
55 {
56 	char *endptr, *tok, *name;
57 
58 	ops->target.addr = strtoull(ops->raw, &endptr, 16);
59 
60 	name = strchr(endptr, '<');
61 	if (name == NULL)
62 		goto indirect_call;
63 
64 	name++;
65 
66 	tok = strchr(name, '>');
67 	if (tok == NULL)
68 		return -1;
69 
70 	*tok = '\0';
71 	ops->target.name = strdup(name);
72 	*tok = '>';
73 
74 	return ops->target.name == NULL ? -1 : 0;
75 
76 indirect_call:
77 	tok = strchr(endptr, '(');
78 	if (tok != NULL) {
79 		ops->target.addr = 0;
80 		return 0;
81 	}
82 
83 	tok = strchr(endptr, '*');
84 	if (tok == NULL)
85 		return -1;
86 
87 	ops->target.addr = strtoull(tok + 1, NULL, 16);
88 	return 0;
89 }
90 
91 static int call__scnprintf(struct ins *ins, char *bf, size_t size,
92 			   struct ins_operands *ops)
93 {
94 	if (ops->target.name)
95 		return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->target.name);
96 
97 	if (ops->target.addr == 0)
98 		return ins__raw_scnprintf(ins, bf, size, ops);
99 
100 	return scnprintf(bf, size, "%-6.6s *%" PRIx64, ins->name, ops->target.addr);
101 }
102 
103 static struct ins_ops call_ops = {
104 	.parse	   = call__parse,
105 	.scnprintf = call__scnprintf,
106 };
107 
108 bool ins__is_call(const struct ins *ins)
109 {
110 	return ins->ops == &call_ops;
111 }
112 
113 static int jump__parse(struct ins_operands *ops)
114 {
115 	const char *s = strchr(ops->raw, '+');
116 
117 	ops->target.addr = strtoull(ops->raw, NULL, 16);
118 
119 	if (s++ != NULL)
120 		ops->target.offset = strtoull(s, NULL, 16);
121 	else
122 		ops->target.offset = UINT64_MAX;
123 
124 	return 0;
125 }
126 
127 static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
128 			   struct ins_operands *ops)
129 {
130 	return scnprintf(bf, size, "%-6.6s %" PRIx64, ins->name, ops->target.offset);
131 }
132 
133 static struct ins_ops jump_ops = {
134 	.parse	   = jump__parse,
135 	.scnprintf = jump__scnprintf,
136 };
137 
138 bool ins__is_jump(const struct ins *ins)
139 {
140 	return ins->ops == &jump_ops;
141 }
142 
143 static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep)
144 {
145 	char *endptr, *name, *t;
146 
147 	if (strstr(raw, "(%rip)") == NULL)
148 		return 0;
149 
150 	*addrp = strtoull(comment, &endptr, 16);
151 	name = strchr(endptr, '<');
152 	if (name == NULL)
153 		return -1;
154 
155 	name++;
156 
157 	t = strchr(name, '>');
158 	if (t == NULL)
159 		return 0;
160 
161 	*t = '\0';
162 	*namep = strdup(name);
163 	*t = '>';
164 
165 	return 0;
166 }
167 
168 static int lock__parse(struct ins_operands *ops)
169 {
170 	char *name;
171 
172 	ops->locked.ops = zalloc(sizeof(*ops->locked.ops));
173 	if (ops->locked.ops == NULL)
174 		return 0;
175 
176 	if (disasm_line__parse(ops->raw, &name, &ops->locked.ops->raw) < 0)
177 		goto out_free_ops;
178 
179 	ops->locked.ins = ins__find(name);
180 	free(name);
181 
182 	if (ops->locked.ins == NULL)
183 		goto out_free_ops;
184 
185 	if (!ops->locked.ins->ops)
186 		return 0;
187 
188 	if (ops->locked.ins->ops->parse &&
189 	    ops->locked.ins->ops->parse(ops->locked.ops) < 0)
190 		goto out_free_ops;
191 
192 	return 0;
193 
194 out_free_ops:
195 	zfree(&ops->locked.ops);
196 	return 0;
197 }
198 
199 static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
200 			   struct ins_operands *ops)
201 {
202 	int printed;
203 
204 	if (ops->locked.ins == NULL)
205 		return ins__raw_scnprintf(ins, bf, size, ops);
206 
207 	printed = scnprintf(bf, size, "%-6.6s ", ins->name);
208 	return printed + ins__scnprintf(ops->locked.ins, bf + printed,
209 					size - printed, ops->locked.ops);
210 }
211 
212 static void lock__delete(struct ins_operands *ops)
213 {
214 	struct ins *ins = ops->locked.ins;
215 
216 	if (ins && ins->ops->free)
217 		ins->ops->free(ops->locked.ops);
218 	else
219 		ins__delete(ops->locked.ops);
220 
221 	zfree(&ops->locked.ops);
222 	zfree(&ops->target.raw);
223 	zfree(&ops->target.name);
224 }
225 
226 static struct ins_ops lock_ops = {
227 	.free	   = lock__delete,
228 	.parse	   = lock__parse,
229 	.scnprintf = lock__scnprintf,
230 };
231 
232 static int mov__parse(struct ins_operands *ops)
233 {
234 	char *s = strchr(ops->raw, ','), *target, *comment, prev;
235 
236 	if (s == NULL)
237 		return -1;
238 
239 	*s = '\0';
240 	ops->source.raw = strdup(ops->raw);
241 	*s = ',';
242 
243 	if (ops->source.raw == NULL)
244 		return -1;
245 
246 	target = ++s;
247 	comment = strchr(s, '#');
248 
249 	if (comment != NULL)
250 		s = comment - 1;
251 	else
252 		s = strchr(s, '\0') - 1;
253 
254 	while (s > target && isspace(s[0]))
255 		--s;
256 	s++;
257 	prev = *s;
258 	*s = '\0';
259 
260 	ops->target.raw = strdup(target);
261 	*s = prev;
262 
263 	if (ops->target.raw == NULL)
264 		goto out_free_source;
265 
266 	if (comment == NULL)
267 		return 0;
268 
269 	while (comment[0] != '\0' && isspace(comment[0]))
270 		++comment;
271 
272 	comment__symbol(ops->source.raw, comment, &ops->source.addr, &ops->source.name);
273 	comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);
274 
275 	return 0;
276 
277 out_free_source:
278 	zfree(&ops->source.raw);
279 	return -1;
280 }
281 
282 static int mov__scnprintf(struct ins *ins, char *bf, size_t size,
283 			   struct ins_operands *ops)
284 {
285 	return scnprintf(bf, size, "%-6.6s %s,%s", ins->name,
286 			 ops->source.name ?: ops->source.raw,
287 			 ops->target.name ?: ops->target.raw);
288 }
289 
290 static struct ins_ops mov_ops = {
291 	.parse	   = mov__parse,
292 	.scnprintf = mov__scnprintf,
293 };
294 
295 static int dec__parse(struct ins_operands *ops)
296 {
297 	char *target, *comment, *s, prev;
298 
299 	target = s = ops->raw;
300 
301 	while (s[0] != '\0' && !isspace(s[0]))
302 		++s;
303 	prev = *s;
304 	*s = '\0';
305 
306 	ops->target.raw = strdup(target);
307 	*s = prev;
308 
309 	if (ops->target.raw == NULL)
310 		return -1;
311 
312 	comment = strchr(s, '#');
313 	if (comment == NULL)
314 		return 0;
315 
316 	while (comment[0] != '\0' && isspace(comment[0]))
317 		++comment;
318 
319 	comment__symbol(ops->target.raw, comment, &ops->target.addr, &ops->target.name);
320 
321 	return 0;
322 }
323 
324 static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
325 			   struct ins_operands *ops)
326 {
327 	return scnprintf(bf, size, "%-6.6s %s", ins->name,
328 			 ops->target.name ?: ops->target.raw);
329 }
330 
331 static struct ins_ops dec_ops = {
332 	.parse	   = dec__parse,
333 	.scnprintf = dec__scnprintf,
334 };
335 
336 static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size,
337 			  struct ins_operands *ops __maybe_unused)
338 {
339 	return scnprintf(bf, size, "%-6.6s", "nop");
340 }
341 
342 static struct ins_ops nop_ops = {
343 	.scnprintf = nop__scnprintf,
344 };
345 
346 /*
347  * Must be sorted by name!
348  */
349 static struct ins instructions[] = {
350 	{ .name = "add",   .ops  = &mov_ops, },
351 	{ .name = "addl",  .ops  = &mov_ops, },
352 	{ .name = "addq",  .ops  = &mov_ops, },
353 	{ .name = "addw",  .ops  = &mov_ops, },
354 	{ .name = "and",   .ops  = &mov_ops, },
355 	{ .name = "bts",   .ops  = &mov_ops, },
356 	{ .name = "call",  .ops  = &call_ops, },
357 	{ .name = "callq", .ops  = &call_ops, },
358 	{ .name = "cmp",   .ops  = &mov_ops, },
359 	{ .name = "cmpb",  .ops  = &mov_ops, },
360 	{ .name = "cmpl",  .ops  = &mov_ops, },
361 	{ .name = "cmpq",  .ops  = &mov_ops, },
362 	{ .name = "cmpw",  .ops  = &mov_ops, },
363 	{ .name = "cmpxch", .ops  = &mov_ops, },
364 	{ .name = "dec",   .ops  = &dec_ops, },
365 	{ .name = "decl",  .ops  = &dec_ops, },
366 	{ .name = "imul",  .ops  = &mov_ops, },
367 	{ .name = "inc",   .ops  = &dec_ops, },
368 	{ .name = "incl",  .ops  = &dec_ops, },
369 	{ .name = "ja",	   .ops  = &jump_ops, },
370 	{ .name = "jae",   .ops  = &jump_ops, },
371 	{ .name = "jb",	   .ops  = &jump_ops, },
372 	{ .name = "jbe",   .ops  = &jump_ops, },
373 	{ .name = "jc",	   .ops  = &jump_ops, },
374 	{ .name = "jcxz",  .ops  = &jump_ops, },
375 	{ .name = "je",	   .ops  = &jump_ops, },
376 	{ .name = "jecxz", .ops  = &jump_ops, },
377 	{ .name = "jg",	   .ops  = &jump_ops, },
378 	{ .name = "jge",   .ops  = &jump_ops, },
379 	{ .name = "jl",    .ops  = &jump_ops, },
380 	{ .name = "jle",   .ops  = &jump_ops, },
381 	{ .name = "jmp",   .ops  = &jump_ops, },
382 	{ .name = "jmpq",  .ops  = &jump_ops, },
383 	{ .name = "jna",   .ops  = &jump_ops, },
384 	{ .name = "jnae",  .ops  = &jump_ops, },
385 	{ .name = "jnb",   .ops  = &jump_ops, },
386 	{ .name = "jnbe",  .ops  = &jump_ops, },
387 	{ .name = "jnc",   .ops  = &jump_ops, },
388 	{ .name = "jne",   .ops  = &jump_ops, },
389 	{ .name = "jng",   .ops  = &jump_ops, },
390 	{ .name = "jnge",  .ops  = &jump_ops, },
391 	{ .name = "jnl",   .ops  = &jump_ops, },
392 	{ .name = "jnle",  .ops  = &jump_ops, },
393 	{ .name = "jno",   .ops  = &jump_ops, },
394 	{ .name = "jnp",   .ops  = &jump_ops, },
395 	{ .name = "jns",   .ops  = &jump_ops, },
396 	{ .name = "jnz",   .ops  = &jump_ops, },
397 	{ .name = "jo",	   .ops  = &jump_ops, },
398 	{ .name = "jp",	   .ops  = &jump_ops, },
399 	{ .name = "jpe",   .ops  = &jump_ops, },
400 	{ .name = "jpo",   .ops  = &jump_ops, },
401 	{ .name = "jrcxz", .ops  = &jump_ops, },
402 	{ .name = "js",	   .ops  = &jump_ops, },
403 	{ .name = "jz",	   .ops  = &jump_ops, },
404 	{ .name = "lea",   .ops  = &mov_ops, },
405 	{ .name = "lock",  .ops  = &lock_ops, },
406 	{ .name = "mov",   .ops  = &mov_ops, },
407 	{ .name = "movb",  .ops  = &mov_ops, },
408 	{ .name = "movdqa",.ops  = &mov_ops, },
409 	{ .name = "movl",  .ops  = &mov_ops, },
410 	{ .name = "movq",  .ops  = &mov_ops, },
411 	{ .name = "movslq", .ops  = &mov_ops, },
412 	{ .name = "movzbl", .ops  = &mov_ops, },
413 	{ .name = "movzwl", .ops  = &mov_ops, },
414 	{ .name = "nop",   .ops  = &nop_ops, },
415 	{ .name = "nopl",  .ops  = &nop_ops, },
416 	{ .name = "nopw",  .ops  = &nop_ops, },
417 	{ .name = "or",    .ops  = &mov_ops, },
418 	{ .name = "orl",   .ops  = &mov_ops, },
419 	{ .name = "test",  .ops  = &mov_ops, },
420 	{ .name = "testb", .ops  = &mov_ops, },
421 	{ .name = "testl", .ops  = &mov_ops, },
422 	{ .name = "xadd",  .ops  = &mov_ops, },
423 	{ .name = "xbeginl", .ops  = &jump_ops, },
424 	{ .name = "xbeginq", .ops  = &jump_ops, },
425 };
426 
427 static int ins__cmp(const void *name, const void *insp)
428 {
429 	const struct ins *ins = insp;
430 
431 	return strcmp(name, ins->name);
432 }
433 
434 static struct ins *ins__find(const char *name)
435 {
436 	const int nmemb = ARRAY_SIZE(instructions);
437 
438 	return bsearch(name, instructions, nmemb, sizeof(struct ins), ins__cmp);
439 }
440 
441 int symbol__annotate_init(struct map *map __maybe_unused, struct symbol *sym)
442 {
443 	struct annotation *notes = symbol__annotation(sym);
444 	pthread_mutex_init(&notes->lock, NULL);
445 	return 0;
446 }
447 
448 int symbol__alloc_hist(struct symbol *sym)
449 {
450 	struct annotation *notes = symbol__annotation(sym);
451 	const size_t size = symbol__size(sym);
452 	size_t sizeof_sym_hist;
453 
454 	/* Check for overflow when calculating sizeof_sym_hist */
455 	if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(u64))
456 		return -1;
457 
458 	sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(u64));
459 
460 	/* Check for overflow in zalloc argument */
461 	if (sizeof_sym_hist > (SIZE_MAX - sizeof(*notes->src))
462 				/ symbol_conf.nr_events)
463 		return -1;
464 
465 	notes->src = zalloc(sizeof(*notes->src) + symbol_conf.nr_events * sizeof_sym_hist);
466 	if (notes->src == NULL)
467 		return -1;
468 	notes->src->sizeof_sym_hist = sizeof_sym_hist;
469 	notes->src->nr_histograms   = symbol_conf.nr_events;
470 	INIT_LIST_HEAD(&notes->src->source);
471 	return 0;
472 }
473 
474 void symbol__annotate_zero_histograms(struct symbol *sym)
475 {
476 	struct annotation *notes = symbol__annotation(sym);
477 
478 	pthread_mutex_lock(&notes->lock);
479 	if (notes->src != NULL)
480 		memset(notes->src->histograms, 0,
481 		       notes->src->nr_histograms * notes->src->sizeof_sym_hist);
482 	pthread_mutex_unlock(&notes->lock);
483 }
484 
485 static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
486 				      struct annotation *notes, int evidx, u64 addr)
487 {
488 	unsigned offset;
489 	struct sym_hist *h;
490 
491 	pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr));
492 
493 	if (addr < sym->start || addr >= sym->end)
494 		return -ERANGE;
495 
496 	offset = addr - sym->start;
497 	h = annotation__histogram(notes, evidx);
498 	h->sum++;
499 	h->addr[offset]++;
500 
501 	pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64
502 		  ", evidx=%d] => %" PRIu64 "\n", sym->start, sym->name,
503 		  addr, addr - sym->start, evidx, h->addr[offset]);
504 	return 0;
505 }
506 
507 static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
508 				    int evidx, u64 addr)
509 {
510 	struct annotation *notes;
511 
512 	if (sym == NULL)
513 		return 0;
514 
515 	notes = symbol__annotation(sym);
516 	if (notes->src == NULL) {
517 		if (symbol__alloc_hist(sym) < 0)
518 			return -ENOMEM;
519 	}
520 
521 	return __symbol__inc_addr_samples(sym, map, notes, evidx, addr);
522 }
523 
524 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, int evidx)
525 {
526 	return symbol__inc_addr_samples(ams->sym, ams->map, evidx, ams->al_addr);
527 }
528 
529 int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 ip)
530 {
531 	return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evidx, ip);
532 }
533 
534 static void disasm_line__init_ins(struct disasm_line *dl)
535 {
536 	dl->ins = ins__find(dl->name);
537 
538 	if (dl->ins == NULL)
539 		return;
540 
541 	if (!dl->ins->ops)
542 		return;
543 
544 	if (dl->ins->ops->parse && dl->ins->ops->parse(&dl->ops) < 0)
545 		dl->ins = NULL;
546 }
547 
548 static int disasm_line__parse(char *line, char **namep, char **rawp)
549 {
550 	char *name = line, tmp;
551 
552 	while (isspace(name[0]))
553 		++name;
554 
555 	if (name[0] == '\0')
556 		return -1;
557 
558 	*rawp = name + 1;
559 
560 	while ((*rawp)[0] != '\0' && !isspace((*rawp)[0]))
561 		++*rawp;
562 
563 	tmp = (*rawp)[0];
564 	(*rawp)[0] = '\0';
565 	*namep = strdup(name);
566 
567 	if (*namep == NULL)
568 		goto out_free_name;
569 
570 	(*rawp)[0] = tmp;
571 
572 	if ((*rawp)[0] != '\0') {
573 		(*rawp)++;
574 		while (isspace((*rawp)[0]))
575 			++(*rawp);
576 	}
577 
578 	return 0;
579 
580 out_free_name:
581 	zfree(namep);
582 	return -1;
583 }
584 
585 static struct disasm_line *disasm_line__new(s64 offset, char *line,
586 					size_t privsize, int line_nr)
587 {
588 	struct disasm_line *dl = zalloc(sizeof(*dl) + privsize);
589 
590 	if (dl != NULL) {
591 		dl->offset = offset;
592 		dl->line = strdup(line);
593 		dl->line_nr = line_nr;
594 		if (dl->line == NULL)
595 			goto out_delete;
596 
597 		if (offset != -1) {
598 			if (disasm_line__parse(dl->line, &dl->name, &dl->ops.raw) < 0)
599 				goto out_free_line;
600 
601 			disasm_line__init_ins(dl);
602 		}
603 	}
604 
605 	return dl;
606 
607 out_free_line:
608 	zfree(&dl->line);
609 out_delete:
610 	free(dl);
611 	return NULL;
612 }
613 
614 void disasm_line__free(struct disasm_line *dl)
615 {
616 	zfree(&dl->line);
617 	zfree(&dl->name);
618 	if (dl->ins && dl->ins->ops->free)
619 		dl->ins->ops->free(&dl->ops);
620 	else
621 		ins__delete(&dl->ops);
622 	free(dl);
623 }
624 
625 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw)
626 {
627 	if (raw || !dl->ins)
628 		return scnprintf(bf, size, "%-6.6s %s", dl->name, dl->ops.raw);
629 
630 	return ins__scnprintf(dl->ins, bf, size, &dl->ops);
631 }
632 
633 static void disasm__add(struct list_head *head, struct disasm_line *line)
634 {
635 	list_add_tail(&line->node, head);
636 }
637 
638 struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disasm_line *pos)
639 {
640 	list_for_each_entry_continue(pos, head, node)
641 		if (pos->offset >= 0)
642 			return pos;
643 
644 	return NULL;
645 }
646 
647 double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset,
648 			    s64 end, const char **path)
649 {
650 	struct source_line *src_line = notes->src->lines;
651 	double percent = 0.0;
652 
653 	if (src_line) {
654 		size_t sizeof_src_line = sizeof(*src_line) +
655 				sizeof(src_line->p) * (src_line->nr_pcnt - 1);
656 
657 		while (offset < end) {
658 			src_line = (void *)notes->src->lines +
659 					(sizeof_src_line * offset);
660 
661 			if (*path == NULL)
662 				*path = src_line->path;
663 
664 			percent += src_line->p[evidx].percent;
665 			offset++;
666 		}
667 	} else {
668 		struct sym_hist *h = annotation__histogram(notes, evidx);
669 		unsigned int hits = 0;
670 
671 		while (offset < end)
672 			hits += h->addr[offset++];
673 
674 		if (h->sum)
675 			percent = 100.0 * hits / h->sum;
676 	}
677 
678 	return percent;
679 }
680 
681 static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 start,
682 		      struct perf_evsel *evsel, u64 len, int min_pcnt, int printed,
683 		      int max_lines, struct disasm_line *queue)
684 {
685 	static const char *prev_line;
686 	static const char *prev_color;
687 
688 	if (dl->offset != -1) {
689 		const char *path = NULL;
690 		double percent, max_percent = 0.0;
691 		double *ppercents = &percent;
692 		int i, nr_percent = 1;
693 		const char *color;
694 		struct annotation *notes = symbol__annotation(sym);
695 		s64 offset = dl->offset;
696 		const u64 addr = start + offset;
697 		struct disasm_line *next;
698 
699 		next = disasm__get_next_ip_line(&notes->src->source, dl);
700 
701 		if (perf_evsel__is_group_event(evsel)) {
702 			nr_percent = evsel->nr_members;
703 			ppercents = calloc(nr_percent, sizeof(double));
704 			if (ppercents == NULL)
705 				return -1;
706 		}
707 
708 		for (i = 0; i < nr_percent; i++) {
709 			percent = disasm__calc_percent(notes,
710 					notes->src->lines ? i : evsel->idx + i,
711 					offset,
712 					next ? next->offset : (s64) len,
713 					&path);
714 
715 			ppercents[i] = percent;
716 			if (percent > max_percent)
717 				max_percent = percent;
718 		}
719 
720 		if (max_percent < min_pcnt)
721 			return -1;
722 
723 		if (max_lines && printed >= max_lines)
724 			return 1;
725 
726 		if (queue != NULL) {
727 			list_for_each_entry_from(queue, &notes->src->source, node) {
728 				if (queue == dl)
729 					break;
730 				disasm_line__print(queue, sym, start, evsel, len,
731 						    0, 0, 1, NULL);
732 			}
733 		}
734 
735 		color = get_percent_color(max_percent);
736 
737 		/*
738 		 * Also color the filename and line if needed, with
739 		 * the same color than the percentage. Don't print it
740 		 * twice for close colored addr with the same filename:line
741 		 */
742 		if (path) {
743 			if (!prev_line || strcmp(prev_line, path)
744 				       || color != prev_color) {
745 				color_fprintf(stdout, color, " %s", path);
746 				prev_line = path;
747 				prev_color = color;
748 			}
749 		}
750 
751 		for (i = 0; i < nr_percent; i++) {
752 			percent = ppercents[i];
753 			color = get_percent_color(percent);
754 			color_fprintf(stdout, color, " %7.2f", percent);
755 		}
756 
757 		printf(" :	");
758 		color_fprintf(stdout, PERF_COLOR_MAGENTA, "  %" PRIx64 ":", addr);
759 		color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", dl->line);
760 
761 		if (ppercents != &percent)
762 			free(ppercents);
763 
764 	} else if (max_lines && printed >= max_lines)
765 		return 1;
766 	else {
767 		int width = 8;
768 
769 		if (queue)
770 			return -1;
771 
772 		if (perf_evsel__is_group_event(evsel))
773 			width *= evsel->nr_members;
774 
775 		if (!*dl->line)
776 			printf(" %*s:\n", width, " ");
777 		else
778 			printf(" %*s:	%s\n", width, " ", dl->line);
779 	}
780 
781 	return 0;
782 }
783 
784 /*
785  * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw)
786  * which looks like following
787  *
788  *  0000000000415500 <_init>:
789  *    415500:       sub    $0x8,%rsp
790  *    415504:       mov    0x2f5ad5(%rip),%rax        # 70afe0 <_DYNAMIC+0x2f8>
791  *    41550b:       test   %rax,%rax
792  *    41550e:       je     415515 <_init+0x15>
793  *    415510:       callq  416e70 <__gmon_start__@plt>
794  *    415515:       add    $0x8,%rsp
795  *    415519:       retq
796  *
797  * it will be parsed and saved into struct disasm_line as
798  *  <offset>       <name>  <ops.raw>
799  *
800  * The offset will be a relative offset from the start of the symbol and -1
801  * means that it's not a disassembly line so should be treated differently.
802  * The ops.raw part will be parsed further according to type of the instruction.
803  */
804 static int symbol__parse_objdump_line(struct symbol *sym, struct map *map,
805 				      FILE *file, size_t privsize,
806 				      int *line_nr)
807 {
808 	struct annotation *notes = symbol__annotation(sym);
809 	struct disasm_line *dl;
810 	char *line = NULL, *parsed_line, *tmp, *tmp2, *c;
811 	size_t line_len;
812 	s64 line_ip, offset = -1;
813 	regmatch_t match[2];
814 
815 	if (getline(&line, &line_len, file) < 0)
816 		return -1;
817 
818 	if (!line)
819 		return -1;
820 
821 	while (line_len != 0 && isspace(line[line_len - 1]))
822 		line[--line_len] = '\0';
823 
824 	c = strchr(line, '\n');
825 	if (c)
826 		*c = 0;
827 
828 	line_ip = -1;
829 	parsed_line = line;
830 
831 	/* /filename:linenr ? Save line number and ignore. */
832 	if (regexec(&file_lineno, line, 2, match, 0) == 0) {
833 		*line_nr = atoi(line + match[1].rm_so);
834 		return 0;
835 	}
836 
837 	/*
838 	 * Strip leading spaces:
839 	 */
840 	tmp = line;
841 	while (*tmp) {
842 		if (*tmp != ' ')
843 			break;
844 		tmp++;
845 	}
846 
847 	if (*tmp) {
848 		/*
849 		 * Parse hexa addresses followed by ':'
850 		 */
851 		line_ip = strtoull(tmp, &tmp2, 16);
852 		if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0')
853 			line_ip = -1;
854 	}
855 
856 	if (line_ip != -1) {
857 		u64 start = map__rip_2objdump(map, sym->start),
858 		    end = map__rip_2objdump(map, sym->end);
859 
860 		offset = line_ip - start;
861 		if ((u64)line_ip < start || (u64)line_ip >= end)
862 			offset = -1;
863 		else
864 			parsed_line = tmp2 + 1;
865 	}
866 
867 	dl = disasm_line__new(offset, parsed_line, privsize, *line_nr);
868 	free(line);
869 	(*line_nr)++;
870 
871 	if (dl == NULL)
872 		return -1;
873 
874 	if (dl->ops.target.offset == UINT64_MAX)
875 		dl->ops.target.offset = dl->ops.target.addr -
876 					map__rip_2objdump(map, sym->start);
877 
878 	/* kcore has no symbols, so add the call target name */
879 	if (dl->ins && ins__is_call(dl->ins) && !dl->ops.target.name) {
880 		struct addr_map_symbol target = {
881 			.map = map,
882 			.addr = dl->ops.target.addr,
883 		};
884 
885 		if (!map_groups__find_ams(&target, NULL) &&
886 		    target.sym->start == target.al_addr)
887 			dl->ops.target.name = strdup(target.sym->name);
888 	}
889 
890 	disasm__add(&notes->src->source, dl);
891 
892 	return 0;
893 }
894 
895 static __attribute__((constructor)) void symbol__init_regexpr(void)
896 {
897 	regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED);
898 }
899 
900 static void delete_last_nop(struct symbol *sym)
901 {
902 	struct annotation *notes = symbol__annotation(sym);
903 	struct list_head *list = &notes->src->source;
904 	struct disasm_line *dl;
905 
906 	while (!list_empty(list)) {
907 		dl = list_entry(list->prev, struct disasm_line, node);
908 
909 		if (dl->ins && dl->ins->ops) {
910 			if (dl->ins->ops != &nop_ops)
911 				return;
912 		} else {
913 			if (!strstr(dl->line, " nop ") &&
914 			    !strstr(dl->line, " nopl ") &&
915 			    !strstr(dl->line, " nopw "))
916 				return;
917 		}
918 
919 		list_del(&dl->node);
920 		disasm_line__free(dl);
921 	}
922 }
923 
924 int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize)
925 {
926 	struct dso *dso = map->dso;
927 	char *filename = dso__build_id_filename(dso, NULL, 0);
928 	bool free_filename = true;
929 	char command[PATH_MAX * 2];
930 	FILE *file;
931 	int err = 0;
932 	char symfs_filename[PATH_MAX];
933 	struct kcore_extract kce;
934 	bool delete_extract = false;
935 	int lineno = 0;
936 
937 	if (filename)
938 		symbol__join_symfs(symfs_filename, filename);
939 
940 	if (filename == NULL) {
941 		if (dso->has_build_id) {
942 			pr_err("Can't annotate %s: not enough memory\n",
943 			       sym->name);
944 			return -ENOMEM;
945 		}
946 		goto fallback;
947 	} else if (dso__is_kcore(dso)) {
948 		goto fallback;
949 	} else if (readlink(symfs_filename, command, sizeof(command)) < 0 ||
950 		   strstr(command, "[kernel.kallsyms]") ||
951 		   access(symfs_filename, R_OK)) {
952 		free(filename);
953 fallback:
954 		/*
955 		 * If we don't have build-ids or the build-id file isn't in the
956 		 * cache, or is just a kallsyms file, well, lets hope that this
957 		 * DSO is the same as when 'perf record' ran.
958 		 */
959 		filename = (char *)dso->long_name;
960 		symbol__join_symfs(symfs_filename, filename);
961 		free_filename = false;
962 	}
963 
964 	if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
965 	    !dso__is_kcore(dso)) {
966 		char bf[BUILD_ID_SIZE * 2 + 16] = " with build id ";
967 		char *build_id_msg = NULL;
968 
969 		if (dso->annotate_warned)
970 			goto out_free_filename;
971 
972 		if (dso->has_build_id) {
973 			build_id__sprintf(dso->build_id,
974 					  sizeof(dso->build_id), bf + 15);
975 			build_id_msg = bf;
976 		}
977 		err = -ENOENT;
978 		dso->annotate_warned = 1;
979 		pr_err("Can't annotate %s:\n\n"
980 		       "No vmlinux file%s\nwas found in the path.\n\n"
981 		       "Please use:\n\n"
982 		       "  perf buildid-cache -vu vmlinux\n\n"
983 		       "or:\n\n"
984 		       "  --vmlinux vmlinux\n",
985 		       sym->name, build_id_msg ?: "");
986 		goto out_free_filename;
987 	}
988 
989 	pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
990 		 filename, sym->name, map->unmap_ip(map, sym->start),
991 		 map->unmap_ip(map, sym->end));
992 
993 	pr_debug("annotating [%p] %30s : [%p] %30s\n",
994 		 dso, dso->long_name, sym, sym->name);
995 
996 	if (dso__is_kcore(dso)) {
997 		kce.kcore_filename = symfs_filename;
998 		kce.addr = map__rip_2objdump(map, sym->start);
999 		kce.offs = sym->start;
1000 		kce.len = sym->end - sym->start;
1001 		if (!kcore_extract__create(&kce)) {
1002 			delete_extract = true;
1003 			strlcpy(symfs_filename, kce.extract_filename,
1004 				sizeof(symfs_filename));
1005 			if (free_filename) {
1006 				free(filename);
1007 				free_filename = false;
1008 			}
1009 			filename = symfs_filename;
1010 		}
1011 	}
1012 
1013 	snprintf(command, sizeof(command),
1014 		 "%s %s%s --start-address=0x%016" PRIx64
1015 		 " --stop-address=0x%016" PRIx64
1016 		 " -l -d %s %s -C %s 2>/dev/null|grep -v %s|expand",
1017 		 objdump_path ? objdump_path : "objdump",
1018 		 disassembler_style ? "-M " : "",
1019 		 disassembler_style ? disassembler_style : "",
1020 		 map__rip_2objdump(map, sym->start),
1021 		 map__rip_2objdump(map, sym->end),
1022 		 symbol_conf.annotate_asm_raw ? "" : "--no-show-raw",
1023 		 symbol_conf.annotate_src ? "-S" : "",
1024 		 symfs_filename, filename);
1025 
1026 	pr_debug("Executing: %s\n", command);
1027 
1028 	file = popen(command, "r");
1029 	if (!file)
1030 		goto out_free_filename;
1031 
1032 	while (!feof(file))
1033 		if (symbol__parse_objdump_line(sym, map, file, privsize,
1034 			    &lineno) < 0)
1035 			break;
1036 
1037 	/*
1038 	 * kallsyms does not have symbol sizes so there may a nop at the end.
1039 	 * Remove it.
1040 	 */
1041 	if (dso__is_kcore(dso))
1042 		delete_last_nop(sym);
1043 
1044 	pclose(file);
1045 out_free_filename:
1046 	if (delete_extract)
1047 		kcore_extract__delete(&kce);
1048 	if (free_filename)
1049 		free(filename);
1050 	return err;
1051 }
1052 
1053 static void insert_source_line(struct rb_root *root, struct source_line *src_line)
1054 {
1055 	struct source_line *iter;
1056 	struct rb_node **p = &root->rb_node;
1057 	struct rb_node *parent = NULL;
1058 	int i, ret;
1059 
1060 	while (*p != NULL) {
1061 		parent = *p;
1062 		iter = rb_entry(parent, struct source_line, node);
1063 
1064 		ret = strcmp(iter->path, src_line->path);
1065 		if (ret == 0) {
1066 			for (i = 0; i < src_line->nr_pcnt; i++)
1067 				iter->p[i].percent_sum += src_line->p[i].percent;
1068 			return;
1069 		}
1070 
1071 		if (ret < 0)
1072 			p = &(*p)->rb_left;
1073 		else
1074 			p = &(*p)->rb_right;
1075 	}
1076 
1077 	for (i = 0; i < src_line->nr_pcnt; i++)
1078 		src_line->p[i].percent_sum = src_line->p[i].percent;
1079 
1080 	rb_link_node(&src_line->node, parent, p);
1081 	rb_insert_color(&src_line->node, root);
1082 }
1083 
1084 static int cmp_source_line(struct source_line *a, struct source_line *b)
1085 {
1086 	int i;
1087 
1088 	for (i = 0; i < a->nr_pcnt; i++) {
1089 		if (a->p[i].percent_sum == b->p[i].percent_sum)
1090 			continue;
1091 		return a->p[i].percent_sum > b->p[i].percent_sum;
1092 	}
1093 
1094 	return 0;
1095 }
1096 
1097 static void __resort_source_line(struct rb_root *root, struct source_line *src_line)
1098 {
1099 	struct source_line *iter;
1100 	struct rb_node **p = &root->rb_node;
1101 	struct rb_node *parent = NULL;
1102 
1103 	while (*p != NULL) {
1104 		parent = *p;
1105 		iter = rb_entry(parent, struct source_line, node);
1106 
1107 		if (cmp_source_line(src_line, iter))
1108 			p = &(*p)->rb_left;
1109 		else
1110 			p = &(*p)->rb_right;
1111 	}
1112 
1113 	rb_link_node(&src_line->node, parent, p);
1114 	rb_insert_color(&src_line->node, root);
1115 }
1116 
1117 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
1118 {
1119 	struct source_line *src_line;
1120 	struct rb_node *node;
1121 
1122 	node = rb_first(src_root);
1123 	while (node) {
1124 		struct rb_node *next;
1125 
1126 		src_line = rb_entry(node, struct source_line, node);
1127 		next = rb_next(node);
1128 		rb_erase(node, src_root);
1129 
1130 		__resort_source_line(dest_root, src_line);
1131 		node = next;
1132 	}
1133 }
1134 
1135 static void symbol__free_source_line(struct symbol *sym, int len)
1136 {
1137 	struct annotation *notes = symbol__annotation(sym);
1138 	struct source_line *src_line = notes->src->lines;
1139 	size_t sizeof_src_line;
1140 	int i;
1141 
1142 	sizeof_src_line = sizeof(*src_line) +
1143 			  (sizeof(src_line->p) * (src_line->nr_pcnt - 1));
1144 
1145 	for (i = 0; i < len; i++) {
1146 		free_srcline(src_line->path);
1147 		src_line = (void *)src_line + sizeof_src_line;
1148 	}
1149 
1150 	zfree(&notes->src->lines);
1151 }
1152 
1153 /* Get the filename:line for the colored entries */
1154 static int symbol__get_source_line(struct symbol *sym, struct map *map,
1155 				   struct perf_evsel *evsel,
1156 				   struct rb_root *root, int len)
1157 {
1158 	u64 start;
1159 	int i, k;
1160 	int evidx = evsel->idx;
1161 	struct source_line *src_line;
1162 	struct annotation *notes = symbol__annotation(sym);
1163 	struct sym_hist *h = annotation__histogram(notes, evidx);
1164 	struct rb_root tmp_root = RB_ROOT;
1165 	int nr_pcnt = 1;
1166 	u64 h_sum = h->sum;
1167 	size_t sizeof_src_line = sizeof(struct source_line);
1168 
1169 	if (perf_evsel__is_group_event(evsel)) {
1170 		for (i = 1; i < evsel->nr_members; i++) {
1171 			h = annotation__histogram(notes, evidx + i);
1172 			h_sum += h->sum;
1173 		}
1174 		nr_pcnt = evsel->nr_members;
1175 		sizeof_src_line += (nr_pcnt - 1) * sizeof(src_line->p);
1176 	}
1177 
1178 	if (!h_sum)
1179 		return 0;
1180 
1181 	src_line = notes->src->lines = calloc(len, sizeof_src_line);
1182 	if (!notes->src->lines)
1183 		return -1;
1184 
1185 	start = map__rip_2objdump(map, sym->start);
1186 
1187 	for (i = 0; i < len; i++) {
1188 		u64 offset;
1189 		double percent_max = 0.0;
1190 
1191 		src_line->nr_pcnt = nr_pcnt;
1192 
1193 		for (k = 0; k < nr_pcnt; k++) {
1194 			h = annotation__histogram(notes, evidx + k);
1195 			src_line->p[k].percent = 100.0 * h->addr[i] / h->sum;
1196 
1197 			if (src_line->p[k].percent > percent_max)
1198 				percent_max = src_line->p[k].percent;
1199 		}
1200 
1201 		if (percent_max <= 0.5)
1202 			goto next;
1203 
1204 		offset = start + i;
1205 		src_line->path = get_srcline(map->dso, offset, NULL, false);
1206 		insert_source_line(&tmp_root, src_line);
1207 
1208 	next:
1209 		src_line = (void *)src_line + sizeof_src_line;
1210 	}
1211 
1212 	resort_source_line(root, &tmp_root);
1213 	return 0;
1214 }
1215 
1216 static void print_summary(struct rb_root *root, const char *filename)
1217 {
1218 	struct source_line *src_line;
1219 	struct rb_node *node;
1220 
1221 	printf("\nSorted summary for file %s\n", filename);
1222 	printf("----------------------------------------------\n\n");
1223 
1224 	if (RB_EMPTY_ROOT(root)) {
1225 		printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
1226 		return;
1227 	}
1228 
1229 	node = rb_first(root);
1230 	while (node) {
1231 		double percent, percent_max = 0.0;
1232 		const char *color;
1233 		char *path;
1234 		int i;
1235 
1236 		src_line = rb_entry(node, struct source_line, node);
1237 		for (i = 0; i < src_line->nr_pcnt; i++) {
1238 			percent = src_line->p[i].percent_sum;
1239 			color = get_percent_color(percent);
1240 			color_fprintf(stdout, color, " %7.2f", percent);
1241 
1242 			if (percent > percent_max)
1243 				percent_max = percent;
1244 		}
1245 
1246 		path = src_line->path;
1247 		color = get_percent_color(percent_max);
1248 		color_fprintf(stdout, color, " %s\n", path);
1249 
1250 		node = rb_next(node);
1251 	}
1252 }
1253 
1254 static void symbol__annotate_hits(struct symbol *sym, struct perf_evsel *evsel)
1255 {
1256 	struct annotation *notes = symbol__annotation(sym);
1257 	struct sym_hist *h = annotation__histogram(notes, evsel->idx);
1258 	u64 len = symbol__size(sym), offset;
1259 
1260 	for (offset = 0; offset < len; ++offset)
1261 		if (h->addr[offset] != 0)
1262 			printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
1263 			       sym->start + offset, h->addr[offset]);
1264 	printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->sum", h->sum);
1265 }
1266 
1267 int symbol__annotate_printf(struct symbol *sym, struct map *map,
1268 			    struct perf_evsel *evsel, bool full_paths,
1269 			    int min_pcnt, int max_lines, int context)
1270 {
1271 	struct dso *dso = map->dso;
1272 	char *filename;
1273 	const char *d_filename;
1274 	const char *evsel_name = perf_evsel__name(evsel);
1275 	struct annotation *notes = symbol__annotation(sym);
1276 	struct disasm_line *pos, *queue = NULL;
1277 	u64 start = map__rip_2objdump(map, sym->start);
1278 	int printed = 2, queue_len = 0;
1279 	int more = 0;
1280 	u64 len;
1281 	int width = 8;
1282 	int namelen, evsel_name_len, graph_dotted_len;
1283 
1284 	filename = strdup(dso->long_name);
1285 	if (!filename)
1286 		return -ENOMEM;
1287 
1288 	if (full_paths)
1289 		d_filename = filename;
1290 	else
1291 		d_filename = basename(filename);
1292 
1293 	len = symbol__size(sym);
1294 	namelen = strlen(d_filename);
1295 	evsel_name_len = strlen(evsel_name);
1296 
1297 	if (perf_evsel__is_group_event(evsel))
1298 		width *= evsel->nr_members;
1299 
1300 	printf(" %-*.*s|	Source code & Disassembly of %s for %s\n",
1301 	       width, width, "Percent", d_filename, evsel_name);
1302 
1303 	graph_dotted_len = width + namelen + evsel_name_len;
1304 	printf("-%-*.*s-----------------------------------------\n",
1305 	       graph_dotted_len, graph_dotted_len, graph_dotted_line);
1306 
1307 	if (verbose)
1308 		symbol__annotate_hits(sym, evsel);
1309 
1310 	list_for_each_entry(pos, &notes->src->source, node) {
1311 		if (context && queue == NULL) {
1312 			queue = pos;
1313 			queue_len = 0;
1314 		}
1315 
1316 		switch (disasm_line__print(pos, sym, start, evsel, len,
1317 					    min_pcnt, printed, max_lines,
1318 					    queue)) {
1319 		case 0:
1320 			++printed;
1321 			if (context) {
1322 				printed += queue_len;
1323 				queue = NULL;
1324 				queue_len = 0;
1325 			}
1326 			break;
1327 		case 1:
1328 			/* filtered by max_lines */
1329 			++more;
1330 			break;
1331 		case -1:
1332 		default:
1333 			/*
1334 			 * Filtered by min_pcnt or non IP lines when
1335 			 * context != 0
1336 			 */
1337 			if (!context)
1338 				break;
1339 			if (queue_len == context)
1340 				queue = list_entry(queue->node.next, typeof(*queue), node);
1341 			else
1342 				++queue_len;
1343 			break;
1344 		}
1345 	}
1346 
1347 	free(filename);
1348 
1349 	return more;
1350 }
1351 
1352 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
1353 {
1354 	struct annotation *notes = symbol__annotation(sym);
1355 	struct sym_hist *h = annotation__histogram(notes, evidx);
1356 
1357 	memset(h, 0, notes->src->sizeof_sym_hist);
1358 }
1359 
1360 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
1361 {
1362 	struct annotation *notes = symbol__annotation(sym);
1363 	struct sym_hist *h = annotation__histogram(notes, evidx);
1364 	int len = symbol__size(sym), offset;
1365 
1366 	h->sum = 0;
1367 	for (offset = 0; offset < len; ++offset) {
1368 		h->addr[offset] = h->addr[offset] * 7 / 8;
1369 		h->sum += h->addr[offset];
1370 	}
1371 }
1372 
1373 void disasm__purge(struct list_head *head)
1374 {
1375 	struct disasm_line *pos, *n;
1376 
1377 	list_for_each_entry_safe(pos, n, head, node) {
1378 		list_del(&pos->node);
1379 		disasm_line__free(pos);
1380 	}
1381 }
1382 
1383 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
1384 {
1385 	size_t printed;
1386 
1387 	if (dl->offset == -1)
1388 		return fprintf(fp, "%s\n", dl->line);
1389 
1390 	printed = fprintf(fp, "%#" PRIx64 " %s", dl->offset, dl->name);
1391 
1392 	if (dl->ops.raw[0] != '\0') {
1393 		printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
1394 				   dl->ops.raw);
1395 	}
1396 
1397 	return printed + fprintf(fp, "\n");
1398 }
1399 
1400 size_t disasm__fprintf(struct list_head *head, FILE *fp)
1401 {
1402 	struct disasm_line *pos;
1403 	size_t printed = 0;
1404 
1405 	list_for_each_entry(pos, head, node)
1406 		printed += disasm_line__fprintf(pos, fp);
1407 
1408 	return printed;
1409 }
1410 
1411 int symbol__tty_annotate(struct symbol *sym, struct map *map,
1412 			 struct perf_evsel *evsel, bool print_lines,
1413 			 bool full_paths, int min_pcnt, int max_lines)
1414 {
1415 	struct dso *dso = map->dso;
1416 	struct rb_root source_line = RB_ROOT;
1417 	u64 len;
1418 
1419 	if (symbol__annotate(sym, map, 0) < 0)
1420 		return -1;
1421 
1422 	len = symbol__size(sym);
1423 
1424 	if (print_lines) {
1425 		symbol__get_source_line(sym, map, evsel, &source_line, len);
1426 		print_summary(&source_line, dso->long_name);
1427 	}
1428 
1429 	symbol__annotate_printf(sym, map, evsel, full_paths,
1430 				min_pcnt, max_lines, 0);
1431 	if (print_lines)
1432 		symbol__free_source_line(sym, len);
1433 
1434 	disasm__purge(&symbol__annotation(sym)->src->source);
1435 
1436 	return 0;
1437 }
1438 
1439 int hist_entry__annotate(struct hist_entry *he, size_t privsize)
1440 {
1441 	return symbol__annotate(he->ms.sym, he->ms.map, privsize);
1442 }
1443 
1444 bool ui__has_annotation(void)
1445 {
1446 	return use_browser == 1 && sort__has_sym;
1447 }
1448