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mm: rename alloc_pages_exact_node() to __alloc_pages_node()
[linux/fpc-iii.git] / tools / perf / util / annotate.c
blobd1eece70b84d6e00c527ccd6027362517013aba8
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 /* The cycles histogram is lazily allocated. */
477 static int symbol__alloc_hist_cycles(struct symbol *sym)
478 {
479 struct annotation *notes = symbol__annotation(sym);
480 const size_t size = symbol__size(sym);
481
482 notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist));
483 if (notes->src->cycles_hist == NULL)
484 return -1;
485 return 0;
486 }
487
488 void symbol__annotate_zero_histograms(struct symbol *sym)
489 {
490 struct annotation *notes = symbol__annotation(sym);
491
492 pthread_mutex_lock(&notes->lock);
493 if (notes->src != NULL) {
494 memset(notes->src->histograms, 0,
495 notes->src->nr_histograms * notes->src->sizeof_sym_hist);
496 if (notes->src->cycles_hist)
497 memset(notes->src->cycles_hist, 0,
498 symbol__size(sym) * sizeof(struct cyc_hist));
499 }
500 pthread_mutex_unlock(&notes->lock);
501 }
502
503 static int __symbol__account_cycles(struct annotation *notes,
504 u64 start,
505 unsigned offset, unsigned cycles,
506 unsigned have_start)
507 {
508 struct cyc_hist *ch;
509
510 ch = notes->src->cycles_hist;
511 /*
512 * For now we can only account one basic block per
513 * final jump. But multiple could be overlapping.
514 * Always account the longest one. So when
515 * a shorter one has been already seen throw it away.
516 *
517 * We separately always account the full cycles.
518 */
519 ch[offset].num_aggr++;
520 ch[offset].cycles_aggr += cycles;
521
522 if (!have_start && ch[offset].have_start)
523 return 0;
524 if (ch[offset].num) {
525 if (have_start && (!ch[offset].have_start ||
526 ch[offset].start > start)) {
527 ch[offset].have_start = 0;
528 ch[offset].cycles = 0;
529 ch[offset].num = 0;
530 if (ch[offset].reset < 0xffff)
531 ch[offset].reset++;
532 } else if (have_start &&
533 ch[offset].start < start)
534 return 0;
535 }
536 ch[offset].have_start = have_start;
537 ch[offset].start = start;
538 ch[offset].cycles += cycles;
539 ch[offset].num++;
540 return 0;
541 }
542
543 static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
544 struct annotation *notes, int evidx, u64 addr)
545 {
546 unsigned offset;
547 struct sym_hist *h;
548
549 pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr));
550
551 if (addr < sym->start || addr >= sym->end)
552 return -ERANGE;
553
554 offset = addr - sym->start;
555 h = annotation__histogram(notes, evidx);
556 h->sum++;
557 h->addr[offset]++;
558
559 pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64
560 ", evidx=%d] => %" PRIu64 "\n", sym->start, sym->name,
561 addr, addr - sym->start, evidx, h->addr[offset]);
562 return 0;
563 }
564
565 static struct annotation *symbol__get_annotation(struct symbol *sym, bool cycles)
566 {
567 struct annotation *notes = symbol__annotation(sym);
568
569 if (notes->src == NULL) {
570 if (symbol__alloc_hist(sym) < 0)
571 return NULL;
572 }
573 if (!notes->src->cycles_hist && cycles) {
574 if (symbol__alloc_hist_cycles(sym) < 0)
575 return NULL;
576 }
577 return notes;
578 }
579
580 static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
581 int evidx, u64 addr)
582 {
583 struct annotation *notes;
584
585 if (sym == NULL)
586 return 0;
587 notes = symbol__get_annotation(sym, false);
588 if (notes == NULL)
589 return -ENOMEM;
590 return __symbol__inc_addr_samples(sym, map, notes, evidx, addr);
591 }
592
593 static int symbol__account_cycles(u64 addr, u64 start,
594 struct symbol *sym, unsigned cycles)
595 {
596 struct annotation *notes;
597 unsigned offset;
598
599 if (sym == NULL)
600 return 0;
601 notes = symbol__get_annotation(sym, true);
602 if (notes == NULL)
603 return -ENOMEM;
604 if (addr < sym->start || addr >= sym->end)
605 return -ERANGE;
606
607 if (start) {
608 if (start < sym->start || start >= sym->end)
609 return -ERANGE;
610 if (start >= addr)
611 start = 0;
612 }
613 offset = addr - sym->start;
614 return __symbol__account_cycles(notes,
615 start ? start - sym->start : 0,
616 offset, cycles,
617 !!start);
618 }
619
620 int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
621 struct addr_map_symbol *start,
622 unsigned cycles)
623 {
624 u64 saddr = 0;
625 int err;
626
627 if (!cycles)
628 return 0;
629
630 /*
631 * Only set start when IPC can be computed. We can only
632 * compute it when the basic block is completely in a single
633 * function.
634 * Special case the case when the jump is elsewhere, but
635 * it starts on the function start.
636 */
637 if (start &&
638 (start->sym == ams->sym ||
639 (ams->sym &&
640 start->addr == ams->sym->start + ams->map->start)))
641 saddr = start->al_addr;
642 if (saddr == 0)
643 pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n",
644 ams->addr,
645 start ? start->addr : 0,
646 ams->sym ? ams->sym->start + ams->map->start : 0,
647 saddr);
648 err = symbol__account_cycles(ams->al_addr, saddr, ams->sym, cycles);
649 if (err)
650 pr_debug2("account_cycles failed %d\n", err);
651 return err;
652 }
653
654 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, int evidx)
655 {
656 return symbol__inc_addr_samples(ams->sym, ams->map, evidx, ams->al_addr);
657 }
658
659 int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 ip)
660 {
661 return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evidx, ip);
662 }
663
664 static void disasm_line__init_ins(struct disasm_line *dl)
665 {
666 dl->ins = ins__find(dl->name);
667
668 if (dl->ins == NULL)
669 return;
670
671 if (!dl->ins->ops)
672 return;
673
674 if (dl->ins->ops->parse && dl->ins->ops->parse(&dl->ops) < 0)
675 dl->ins = NULL;
676 }
677
678 static int disasm_line__parse(char *line, char **namep, char **rawp)
679 {
680 char *name = line, tmp;
681
682 while (isspace(name[0]))
683 ++name;
684
685 if (name[0] == '\0')
686 return -1;
687
688 *rawp = name + 1;
689
690 while ((*rawp)[0] != '\0' && !isspace((*rawp)[0]))
691 ++*rawp;
692
693 tmp = (*rawp)[0];
694 (*rawp)[0] = '\0';
695 *namep = strdup(name);
696
697 if (*namep == NULL)
698 goto out_free_name;
699
700 (*rawp)[0] = tmp;
701
702 if ((*rawp)[0] != '\0') {
703 (*rawp)++;
704 while (isspace((*rawp)[0]))
705 ++(*rawp);
706 }
707
708 return 0;
709
710 out_free_name:
711 zfree(namep);
712 return -1;
713 }
714
715 static struct disasm_line *disasm_line__new(s64 offset, char *line,
716 size_t privsize, int line_nr)
717 {
718 struct disasm_line *dl = zalloc(sizeof(*dl) + privsize);
719
720 if (dl != NULL) {
721 dl->offset = offset;
722 dl->line = strdup(line);
723 dl->line_nr = line_nr;
724 if (dl->line == NULL)
725 goto out_delete;
726
727 if (offset != -1) {
728 if (disasm_line__parse(dl->line, &dl->name, &dl->ops.raw) < 0)
729 goto out_free_line;
730
731 disasm_line__init_ins(dl);
732 }
733 }
734
735 return dl;
736
737 out_free_line:
738 zfree(&dl->line);
739 out_delete:
740 free(dl);
741 return NULL;
742 }
743
744 void disasm_line__free(struct disasm_line *dl)
745 {
746 zfree(&dl->line);
747 zfree(&dl->name);
748 if (dl->ins && dl->ins->ops->free)
749 dl->ins->ops->free(&dl->ops);
750 else
751 ins__delete(&dl->ops);
752 free(dl);
753 }
754
755 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw)
756 {
757 if (raw || !dl->ins)
758 return scnprintf(bf, size, "%-6.6s %s", dl->name, dl->ops.raw);
759
760 return ins__scnprintf(dl->ins, bf, size, &dl->ops);
761 }
762
763 static void disasm__add(struct list_head *head, struct disasm_line *line)
764 {
765 list_add_tail(&line->node, head);
766 }
767
768 struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disasm_line *pos)
769 {
770 list_for_each_entry_continue(pos, head, node)
771 if (pos->offset >= 0)
772 return pos;
773
774 return NULL;
775 }
776
777 double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset,
778 s64 end, const char **path, u64 *nr_samples)
779 {
780 struct source_line *src_line = notes->src->lines;
781 double percent = 0.0;
782 *nr_samples = 0;
783
784 if (src_line) {
785 size_t sizeof_src_line = sizeof(*src_line) +
786 sizeof(src_line->samples) * (src_line->nr_pcnt - 1);
787
788 while (offset < end) {
789 src_line = (void *)notes->src->lines +
790 (sizeof_src_line * offset);
791
792 if (*path == NULL)
793 *path = src_line->path;
794
795 percent += src_line->samples[evidx].percent;
796 *nr_samples += src_line->samples[evidx].nr;
797 offset++;
798 }
799 } else {
800 struct sym_hist *h = annotation__histogram(notes, evidx);
801 unsigned int hits = 0;
802
803 while (offset < end)
804 hits += h->addr[offset++];
805
806 if (h->sum) {
807 *nr_samples = hits;
808 percent = 100.0 * hits / h->sum;
809 }
810 }
811
812 return percent;
813 }
814
815 static int disasm_line__print(struct disasm_line *dl, struct symbol *sym, u64 start,
816 struct perf_evsel *evsel, u64 len, int min_pcnt, int printed,
817 int max_lines, struct disasm_line *queue)
818 {
819 static const char *prev_line;
820 static const char *prev_color;
821
822 if (dl->offset != -1) {
823 const char *path = NULL;
824 u64 nr_samples;
825 double percent, max_percent = 0.0;
826 double *ppercents = &percent;
827 u64 *psamples = &nr_samples;
828 int i, nr_percent = 1;
829 const char *color;
830 struct annotation *notes = symbol__annotation(sym);
831 s64 offset = dl->offset;
832 const u64 addr = start + offset;
833 struct disasm_line *next;
834
835 next = disasm__get_next_ip_line(&notes->src->source, dl);
836
837 if (perf_evsel__is_group_event(evsel)) {
838 nr_percent = evsel->nr_members;
839 ppercents = calloc(nr_percent, sizeof(double));
840 psamples = calloc(nr_percent, sizeof(u64));
841 if (ppercents == NULL || psamples == NULL) {
842 return -1;
843 }
844 }
845
846 for (i = 0; i < nr_percent; i++) {
847 percent = disasm__calc_percent(notes,
848 notes->src->lines ? i : evsel->idx + i,
849 offset,
850 next ? next->offset : (s64) len,
851 &path, &nr_samples);
852
853 ppercents[i] = percent;
854 psamples[i] = nr_samples;
855 if (percent > max_percent)
856 max_percent = percent;
857 }
858
859 if (max_percent < min_pcnt)
860 return -1;
861
862 if (max_lines && printed >= max_lines)
863 return 1;
864
865 if (queue != NULL) {
866 list_for_each_entry_from(queue, &notes->src->source, node) {
867 if (queue == dl)
868 break;
869 disasm_line__print(queue, sym, start, evsel, len,
870 0, 0, 1, NULL);
871 }
872 }
873
874 color = get_percent_color(max_percent);
875
876 /*
877 * Also color the filename and line if needed, with
878 * the same color than the percentage. Don't print it
879 * twice for close colored addr with the same filename:line
880 */
881 if (path) {
882 if (!prev_line || strcmp(prev_line, path)
883 || color != prev_color) {
884 color_fprintf(stdout, color, " %s", path);
885 prev_line = path;
886 prev_color = color;
887 }
888 }
889
890 for (i = 0; i < nr_percent; i++) {
891 percent = ppercents[i];
892 nr_samples = psamples[i];
893 color = get_percent_color(percent);
894
895 if (symbol_conf.show_total_period)
896 color_fprintf(stdout, color, " %7" PRIu64,
897 nr_samples);
898 else
899 color_fprintf(stdout, color, " %7.2f", percent);
900 }
901
902 printf(" : ");
903 color_fprintf(stdout, PERF_COLOR_MAGENTA, " %" PRIx64 ":", addr);
904 color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", dl->line);
905
906 if (ppercents != &percent)
907 free(ppercents);
908
909 if (psamples != &nr_samples)
910 free(psamples);
911
912 } else if (max_lines && printed >= max_lines)
913 return 1;
914 else {
915 int width = 8;
916
917 if (queue)
918 return -1;
919
920 if (perf_evsel__is_group_event(evsel))
921 width *= evsel->nr_members;
922
923 if (!*dl->line)
924 printf(" %*s:\n", width, " ");
925 else
926 printf(" %*s: %s\n", width, " ", dl->line);
927 }
928
929 return 0;
930 }
931
932 /*
933 * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw)
934 * which looks like following
935 *
936 * 0000000000415500 <_init>:
937 * 415500: sub $0x8,%rsp
938 * 415504: mov 0x2f5ad5(%rip),%rax # 70afe0 <_DYNAMIC+0x2f8>
939 * 41550b: test %rax,%rax
940 * 41550e: je 415515 <_init+0x15>
941 * 415510: callq 416e70 <__gmon_start__@plt>
942 * 415515: add $0x8,%rsp
943 * 415519: retq
944 *
945 * it will be parsed and saved into struct disasm_line as
946 * <offset> <name> <ops.raw>
947 *
948 * The offset will be a relative offset from the start of the symbol and -1
949 * means that it's not a disassembly line so should be treated differently.
950 * The ops.raw part will be parsed further according to type of the instruction.
951 */
952 static int symbol__parse_objdump_line(struct symbol *sym, struct map *map,
953 FILE *file, size_t privsize,
954 int *line_nr)
955 {
956 struct annotation *notes = symbol__annotation(sym);
957 struct disasm_line *dl;
958 char *line = NULL, *parsed_line, *tmp, *tmp2, *c;
959 size_t line_len;
960 s64 line_ip, offset = -1;
961 regmatch_t match[2];
962
963 if (getline(&line, &line_len, file) < 0)
964 return -1;
965
966 if (!line)
967 return -1;
968
969 while (line_len != 0 && isspace(line[line_len - 1]))
970 line[--line_len] = '\0';
971
972 c = strchr(line, '\n');
973 if (c)
974 *c = 0;
975
976 line_ip = -1;
977 parsed_line = line;
978
979 /* /filename:linenr ? Save line number and ignore. */
980 if (regexec(&file_lineno, line, 2, match, 0) == 0) {
981 *line_nr = atoi(line + match[1].rm_so);
982 return 0;
983 }
984
985 /*
986 * Strip leading spaces:
987 */
988 tmp = line;
989 while (*tmp) {
990 if (*tmp != ' ')
991 break;
992 tmp++;
993 }
994
995 if (*tmp) {
996 /*
997 * Parse hexa addresses followed by ':'
998 */
999 line_ip = strtoull(tmp, &tmp2, 16);
1000 if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0')
1001 line_ip = -1;
1002 }
1003
1004 if (line_ip != -1) {
1005 u64 start = map__rip_2objdump(map, sym->start),
1006 end = map__rip_2objdump(map, sym->end);
1007
1008 offset = line_ip - start;
1009 if ((u64)line_ip < start || (u64)line_ip >= end)
1010 offset = -1;
1011 else
1012 parsed_line = tmp2 + 1;
1013 }
1014
1015 dl = disasm_line__new(offset, parsed_line, privsize, *line_nr);
1016 free(line);
1017 (*line_nr)++;
1018
1019 if (dl == NULL)
1020 return -1;
1021
1022 if (dl->ops.target.offset == UINT64_MAX)
1023 dl->ops.target.offset = dl->ops.target.addr -
1024 map__rip_2objdump(map, sym->start);
1025
1026 /* kcore has no symbols, so add the call target name */
1027 if (dl->ins && ins__is_call(dl->ins) && !dl->ops.target.name) {
1028 struct addr_map_symbol target = {
1029 .map = map,
1030 .addr = dl->ops.target.addr,
1031 };
1032
1033 if (!map_groups__find_ams(&target, NULL) &&
1034 target.sym->start == target.al_addr)
1035 dl->ops.target.name = strdup(target.sym->name);
1036 }
1037
1038 disasm__add(&notes->src->source, dl);
1039
1040 return 0;
1041 }
1042
1043 static __attribute__((constructor)) void symbol__init_regexpr(void)
1044 {
1045 regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED);
1046 }
1047
1048 static void delete_last_nop(struct symbol *sym)
1049 {
1050 struct annotation *notes = symbol__annotation(sym);
1051 struct list_head *list = &notes->src->source;
1052 struct disasm_line *dl;
1053
1054 while (!list_empty(list)) {
1055 dl = list_entry(list->prev, struct disasm_line, node);
1056
1057 if (dl->ins && dl->ins->ops) {
1058 if (dl->ins->ops != &nop_ops)
1059 return;
1060 } else {
1061 if (!strstr(dl->line, " nop ") &&
1062 !strstr(dl->line, " nopl ") &&
1063 !strstr(dl->line, " nopw "))
1064 return;
1065 }
1066
1067 list_del(&dl->node);
1068 disasm_line__free(dl);
1069 }
1070 }
1071
1072 int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize)
1073 {
1074 struct dso *dso = map->dso;
1075 char *filename = dso__build_id_filename(dso, NULL, 0);
1076 bool free_filename = true;
1077 char command[PATH_MAX * 2];
1078 FILE *file;
1079 int err = 0;
1080 char symfs_filename[PATH_MAX];
1081 struct kcore_extract kce;
1082 bool delete_extract = false;
1083 int lineno = 0;
1084
1085 if (filename)
1086 symbol__join_symfs(symfs_filename, filename);
1087
1088 if (filename == NULL) {
1089 if (dso->has_build_id) {
1090 pr_err("Can't annotate %s: not enough memory\n",
1091 sym->name);
1092 return -ENOMEM;
1093 }
1094 goto fallback;
1095 } else if (dso__is_kcore(dso)) {
1096 goto fallback;
1097 } else if (readlink(symfs_filename, command, sizeof(command)) < 0 ||
1098 strstr(command, "[kernel.kallsyms]") ||
1099 access(symfs_filename, R_OK)) {
1100 free(filename);
1101 fallback:
1102 /*
1103 * If we don't have build-ids or the build-id file isn't in the
1104 * cache, or is just a kallsyms file, well, lets hope that this
1105 * DSO is the same as when 'perf record' ran.
1106 */
1107 filename = (char *)dso->long_name;
1108 symbol__join_symfs(symfs_filename, filename);
1109 free_filename = false;
1110 }
1111
1112 if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
1113 !dso__is_kcore(dso)) {
1114 char bf[BUILD_ID_SIZE * 2 + 16] = " with build id ";
1115 char *build_id_msg = NULL;
1116
1117 if (dso->annotate_warned)
1118 goto out_free_filename;
1119
1120 if (dso->has_build_id) {
1121 build_id__sprintf(dso->build_id,
1122 sizeof(dso->build_id), bf + 15);
1123 build_id_msg = bf;
1124 }
1125 err = -ENOENT;
1126 dso->annotate_warned = 1;
1127 pr_err("Can't annotate %s:\n\n"
1128 "No vmlinux file%s\nwas found in the path.\n\n"
1129 "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n"
1130 "Please use:\n\n"
1131 " perf buildid-cache -vu vmlinux\n\n"
1132 "or:\n\n"
1133 " --vmlinux vmlinux\n",
1134 sym->name, build_id_msg ?: "");
1135 goto out_free_filename;
1136 }
1137
1138 pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
1139 filename, sym->name, map->unmap_ip(map, sym->start),
1140 map->unmap_ip(map, sym->end));
1141
1142 pr_debug("annotating [%p] %30s : [%p] %30s\n",
1143 dso, dso->long_name, sym, sym->name);
1144
1145 if (dso__is_kcore(dso)) {
1146 kce.kcore_filename = symfs_filename;
1147 kce.addr = map__rip_2objdump(map, sym->start);
1148 kce.offs = sym->start;
1149 kce.len = sym->end - sym->start;
1150 if (!kcore_extract__create(&kce)) {
1151 delete_extract = true;
1152 strlcpy(symfs_filename, kce.extract_filename,
1153 sizeof(symfs_filename));
1154 if (free_filename) {
1155 free(filename);
1156 free_filename = false;
1157 }
1158 filename = symfs_filename;
1159 }
1160 } else if (dso__needs_decompress(dso)) {
1161 char tmp[PATH_MAX];
1162 struct kmod_path m;
1163 int fd;
1164 bool ret;
1165
1166 if (kmod_path__parse_ext(&m, symfs_filename))
1167 goto out_free_filename;
1168
1169 snprintf(tmp, PATH_MAX, "/tmp/perf-kmod-XXXXXX");
1170
1171 fd = mkstemp(tmp);
1172 if (fd < 0) {
1173 free(m.ext);
1174 goto out_free_filename;
1175 }
1176
1177 ret = decompress_to_file(m.ext, symfs_filename, fd);
1178
1179 free(m.ext);
1180 close(fd);
1181
1182 if (!ret)
1183 goto out_free_filename;
1184
1185 strcpy(symfs_filename, tmp);
1186 }
1187
1188 snprintf(command, sizeof(command),
1189 "%s %s%s --start-address=0x%016" PRIx64
1190 " --stop-address=0x%016" PRIx64
1191 " -l -d %s %s -C %s 2>/dev/null|grep -v %s|expand",
1192 objdump_path ? objdump_path : "objdump",
1193 disassembler_style ? "-M " : "",
1194 disassembler_style ? disassembler_style : "",
1195 map__rip_2objdump(map, sym->start),
1196 map__rip_2objdump(map, sym->end),
1197 symbol_conf.annotate_asm_raw ? "" : "--no-show-raw",
1198 symbol_conf.annotate_src ? "-S" : "",
1199 symfs_filename, filename);
1200
1201 pr_debug("Executing: %s\n", command);
1202
1203 file = popen(command, "r");
1204 if (!file)
1205 goto out_remove_tmp;
1206
1207 while (!feof(file))
1208 if (symbol__parse_objdump_line(sym, map, file, privsize,
1209 &lineno) < 0)
1210 break;
1211
1212 /*
1213 * kallsyms does not have symbol sizes so there may a nop at the end.
1214 * Remove it.
1215 */
1216 if (dso__is_kcore(dso))
1217 delete_last_nop(sym);
1218
1219 pclose(file);
1220
1221 out_remove_tmp:
1222 if (dso__needs_decompress(dso))
1223 unlink(symfs_filename);
1224 out_free_filename:
1225 if (delete_extract)
1226 kcore_extract__delete(&kce);
1227 if (free_filename)
1228 free(filename);
1229 return err;
1230 }
1231
1232 static void insert_source_line(struct rb_root *root, struct source_line *src_line)
1233 {
1234 struct source_line *iter;
1235 struct rb_node **p = &root->rb_node;
1236 struct rb_node *parent = NULL;
1237 int i, ret;
1238
1239 while (*p != NULL) {
1240 parent = *p;
1241 iter = rb_entry(parent, struct source_line, node);
1242
1243 ret = strcmp(iter->path, src_line->path);
1244 if (ret == 0) {
1245 for (i = 0; i < src_line->nr_pcnt; i++)
1246 iter->samples[i].percent_sum += src_line->samples[i].percent;
1247 return;
1248 }
1249
1250 if (ret < 0)
1251 p = &(*p)->rb_left;
1252 else
1253 p = &(*p)->rb_right;
1254 }
1255
1256 for (i = 0; i < src_line->nr_pcnt; i++)
1257 src_line->samples[i].percent_sum = src_line->samples[i].percent;
1258
1259 rb_link_node(&src_line->node, parent, p);
1260 rb_insert_color(&src_line->node, root);
1261 }
1262
1263 static int cmp_source_line(struct source_line *a, struct source_line *b)
1264 {
1265 int i;
1266
1267 for (i = 0; i < a->nr_pcnt; i++) {
1268 if (a->samples[i].percent_sum == b->samples[i].percent_sum)
1269 continue;
1270 return a->samples[i].percent_sum > b->samples[i].percent_sum;
1271 }
1272
1273 return 0;
1274 }
1275
1276 static void __resort_source_line(struct rb_root *root, struct source_line *src_line)
1277 {
1278 struct source_line *iter;
1279 struct rb_node **p = &root->rb_node;
1280 struct rb_node *parent = NULL;
1281
1282 while (*p != NULL) {
1283 parent = *p;
1284 iter = rb_entry(parent, struct source_line, node);
1285
1286 if (cmp_source_line(src_line, iter))
1287 p = &(*p)->rb_left;
1288 else
1289 p = &(*p)->rb_right;
1290 }
1291
1292 rb_link_node(&src_line->node, parent, p);
1293 rb_insert_color(&src_line->node, root);
1294 }
1295
1296 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
1297 {
1298 struct source_line *src_line;
1299 struct rb_node *node;
1300
1301 node = rb_first(src_root);
1302 while (node) {
1303 struct rb_node *next;
1304
1305 src_line = rb_entry(node, struct source_line, node);
1306 next = rb_next(node);
1307 rb_erase(node, src_root);
1308
1309 __resort_source_line(dest_root, src_line);
1310 node = next;
1311 }
1312 }
1313
1314 static void symbol__free_source_line(struct symbol *sym, int len)
1315 {
1316 struct annotation *notes = symbol__annotation(sym);
1317 struct source_line *src_line = notes->src->lines;
1318 size_t sizeof_src_line;
1319 int i;
1320
1321 sizeof_src_line = sizeof(*src_line) +
1322 (sizeof(src_line->samples) * (src_line->nr_pcnt - 1));
1323
1324 for (i = 0; i < len; i++) {
1325 free_srcline(src_line->path);
1326 src_line = (void *)src_line + sizeof_src_line;
1327 }
1328
1329 zfree(&notes->src->lines);
1330 }
1331
1332 /* Get the filename:line for the colored entries */
1333 static int symbol__get_source_line(struct symbol *sym, struct map *map,
1334 struct perf_evsel *evsel,
1335 struct rb_root *root, int len)
1336 {
1337 u64 start;
1338 int i, k;
1339 int evidx = evsel->idx;
1340 struct source_line *src_line;
1341 struct annotation *notes = symbol__annotation(sym);
1342 struct sym_hist *h = annotation__histogram(notes, evidx);
1343 struct rb_root tmp_root = RB_ROOT;
1344 int nr_pcnt = 1;
1345 u64 h_sum = h->sum;
1346 size_t sizeof_src_line = sizeof(struct source_line);
1347
1348 if (perf_evsel__is_group_event(evsel)) {
1349 for (i = 1; i < evsel->nr_members; i++) {
1350 h = annotation__histogram(notes, evidx + i);
1351 h_sum += h->sum;
1352 }
1353 nr_pcnt = evsel->nr_members;
1354 sizeof_src_line += (nr_pcnt - 1) * sizeof(src_line->samples);
1355 }
1356
1357 if (!h_sum)
1358 return 0;
1359
1360 src_line = notes->src->lines = calloc(len, sizeof_src_line);
1361 if (!notes->src->lines)
1362 return -1;
1363
1364 start = map__rip_2objdump(map, sym->start);
1365
1366 for (i = 0; i < len; i++) {
1367 u64 offset;
1368 double percent_max = 0.0;
1369
1370 src_line->nr_pcnt = nr_pcnt;
1371
1372 for (k = 0; k < nr_pcnt; k++) {
1373 h = annotation__histogram(notes, evidx + k);
1374 src_line->samples[k].percent = 100.0 * h->addr[i] / h->sum;
1375
1376 if (src_line->samples[k].percent > percent_max)
1377 percent_max = src_line->samples[k].percent;
1378 }
1379
1380 if (percent_max <= 0.5)
1381 goto next;
1382
1383 offset = start + i;
1384 src_line->path = get_srcline(map->dso, offset, NULL, false);
1385 insert_source_line(&tmp_root, src_line);
1386
1387 next:
1388 src_line = (void *)src_line + sizeof_src_line;
1389 }
1390
1391 resort_source_line(root, &tmp_root);
1392 return 0;
1393 }
1394
1395 static void print_summary(struct rb_root *root, const char *filename)
1396 {
1397 struct source_line *src_line;
1398 struct rb_node *node;
1399
1400 printf("\nSorted summary for file %s\n", filename);
1401 printf("----------------------------------------------\n\n");
1402
1403 if (RB_EMPTY_ROOT(root)) {
1404 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
1405 return;
1406 }
1407
1408 node = rb_first(root);
1409 while (node) {
1410 double percent, percent_max = 0.0;
1411 const char *color;
1412 char *path;
1413 int i;
1414
1415 src_line = rb_entry(node, struct source_line, node);
1416 for (i = 0; i < src_line->nr_pcnt; i++) {
1417 percent = src_line->samples[i].percent_sum;
1418 color = get_percent_color(percent);
1419 color_fprintf(stdout, color, " %7.2f", percent);
1420
1421 if (percent > percent_max)
1422 percent_max = percent;
1423 }
1424
1425 path = src_line->path;
1426 color = get_percent_color(percent_max);
1427 color_fprintf(stdout, color, " %s\n", path);
1428
1429 node = rb_next(node);
1430 }
1431 }
1432
1433 static void symbol__annotate_hits(struct symbol *sym, struct perf_evsel *evsel)
1434 {
1435 struct annotation *notes = symbol__annotation(sym);
1436 struct sym_hist *h = annotation__histogram(notes, evsel->idx);
1437 u64 len = symbol__size(sym), offset;
1438
1439 for (offset = 0; offset < len; ++offset)
1440 if (h->addr[offset] != 0)
1441 printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
1442 sym->start + offset, h->addr[offset]);
1443 printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->sum", h->sum);
1444 }
1445
1446 int symbol__annotate_printf(struct symbol *sym, struct map *map,
1447 struct perf_evsel *evsel, bool full_paths,
1448 int min_pcnt, int max_lines, int context)
1449 {
1450 struct dso *dso = map->dso;
1451 char *filename;
1452 const char *d_filename;
1453 const char *evsel_name = perf_evsel__name(evsel);
1454 struct annotation *notes = symbol__annotation(sym);
1455 struct disasm_line *pos, *queue = NULL;
1456 u64 start = map__rip_2objdump(map, sym->start);
1457 int printed = 2, queue_len = 0;
1458 int more = 0;
1459 u64 len;
1460 int width = 8;
1461 int namelen, evsel_name_len, graph_dotted_len;
1462
1463 filename = strdup(dso->long_name);
1464 if (!filename)
1465 return -ENOMEM;
1466
1467 if (full_paths)
1468 d_filename = filename;
1469 else
1470 d_filename = basename(filename);
1471
1472 len = symbol__size(sym);
1473 namelen = strlen(d_filename);
1474 evsel_name_len = strlen(evsel_name);
1475
1476 if (perf_evsel__is_group_event(evsel))
1477 width *= evsel->nr_members;
1478
1479 printf(" %-*.*s| Source code & Disassembly of %s for %s\n",
1480 width, width, "Percent", d_filename, evsel_name);
1481
1482 graph_dotted_len = width + namelen + evsel_name_len;
1483 printf("-%-*.*s-----------------------------------------\n",
1484 graph_dotted_len, graph_dotted_len, graph_dotted_line);
1485
1486 if (verbose)
1487 symbol__annotate_hits(sym, evsel);
1488
1489 list_for_each_entry(pos, &notes->src->source, node) {
1490 if (context && queue == NULL) {
1491 queue = pos;
1492 queue_len = 0;
1493 }
1494
1495 switch (disasm_line__print(pos, sym, start, evsel, len,
1496 min_pcnt, printed, max_lines,
1497 queue)) {
1498 case 0:
1499 ++printed;
1500 if (context) {
1501 printed += queue_len;
1502 queue = NULL;
1503 queue_len = 0;
1504 }
1505 break;
1506 case 1:
1507 /* filtered by max_lines */
1508 ++more;
1509 break;
1510 case -1:
1511 default:
1512 /*
1513 * Filtered by min_pcnt or non IP lines when
1514 * context != 0
1515 */
1516 if (!context)
1517 break;
1518 if (queue_len == context)
1519 queue = list_entry(queue->node.next, typeof(*queue), node);
1520 else
1521 ++queue_len;
1522 break;
1523 }
1524 }
1525
1526 free(filename);
1527
1528 return more;
1529 }
1530
1531 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
1532 {
1533 struct annotation *notes = symbol__annotation(sym);
1534 struct sym_hist *h = annotation__histogram(notes, evidx);
1535
1536 memset(h, 0, notes->src->sizeof_sym_hist);
1537 }
1538
1539 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
1540 {
1541 struct annotation *notes = symbol__annotation(sym);
1542 struct sym_hist *h = annotation__histogram(notes, evidx);
1543 int len = symbol__size(sym), offset;
1544
1545 h->sum = 0;
1546 for (offset = 0; offset < len; ++offset) {
1547 h->addr[offset] = h->addr[offset] * 7 / 8;
1548 h->sum += h->addr[offset];
1549 }
1550 }
1551
1552 void disasm__purge(struct list_head *head)
1553 {
1554 struct disasm_line *pos, *n;
1555
1556 list_for_each_entry_safe(pos, n, head, node) {
1557 list_del(&pos->node);
1558 disasm_line__free(pos);
1559 }
1560 }
1561
1562 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
1563 {
1564 size_t printed;
1565
1566 if (dl->offset == -1)
1567 return fprintf(fp, "%s\n", dl->line);
1568
1569 printed = fprintf(fp, "%#" PRIx64 " %s", dl->offset, dl->name);
1570
1571 if (dl->ops.raw[0] != '\0') {
1572 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
1573 dl->ops.raw);
1574 }
1575
1576 return printed + fprintf(fp, "\n");
1577 }
1578
1579 size_t disasm__fprintf(struct list_head *head, FILE *fp)
1580 {
1581 struct disasm_line *pos;
1582 size_t printed = 0;
1583
1584 list_for_each_entry(pos, head, node)
1585 printed += disasm_line__fprintf(pos, fp);
1586
1587 return printed;
1588 }
1589
1590 int symbol__tty_annotate(struct symbol *sym, struct map *map,
1591 struct perf_evsel *evsel, bool print_lines,
1592 bool full_paths, int min_pcnt, int max_lines)
1593 {
1594 struct dso *dso = map->dso;
1595 struct rb_root source_line = RB_ROOT;
1596 u64 len;
1597
1598 if (symbol__annotate(sym, map, 0) < 0)
1599 return -1;
1600
1601 len = symbol__size(sym);
1602
1603 if (print_lines) {
1604 symbol__get_source_line(sym, map, evsel, &source_line, len);
1605 print_summary(&source_line, dso->long_name);
1606 }
1607
1608 symbol__annotate_printf(sym, map, evsel, full_paths,
1609 min_pcnt, max_lines, 0);
1610 if (print_lines)
1611 symbol__free_source_line(sym, len);
1612
1613 disasm__purge(&symbol__annotation(sym)->src->source);
1614
1615 return 0;
1616 }
1617
1618 int hist_entry__annotate(struct hist_entry *he, size_t privsize)
1619 {
1620 return symbol__annotate(he->ms.sym, he->ms.map, privsize);
1621 }
1622
1623 bool ui__has_annotation(void)
1624 {
1625 return use_browser == 1 && sort__has_sym;
1626 }
Linux with added FPC-III support