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TOMOYO Linux Cross Reference
Linux/tools/perf/util/annotate.c

Version: ~ [ linux-5.2-rc1 ] ~ [ linux-5.1.2 ] ~ [ linux-5.0.16 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.43 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.119 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.176 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.179 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.139 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.67 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.39.4 ] ~ [ linux-2.6.38.8 ] ~ [ linux-2.6.37.6 ] ~ [ linux-2.6.36.4 ] ~ [ linux-2.6.35.14 ] ~ [ linux-2.6.34.15 ] ~ [ linux-2.6.33.20 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  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         }
1014 
1015         snprintf(command, sizeof(command),
1016                  "%s %s%s --start-address=0x%016" PRIx64
1017                  " --stop-address=0x%016" PRIx64
1018                  " -l -d %s %s -C %s 2>/dev/null|grep -v %s|expand",
1019                  objdump_path ? objdump_path : "objdump",
1020                  disassembler_style ? "-M " : "",
1021                  disassembler_style ? disassembler_style : "",
1022                  map__rip_2objdump(map, sym->start),
1023                  map__rip_2objdump(map, sym->end),
1024                  symbol_conf.annotate_asm_raw ? "" : "--no-show-raw",
1025                  symbol_conf.annotate_src ? "-S" : "",
1026                  symfs_filename, filename);
1027 
1028         pr_debug("Executing: %s\n", command);
1029 
1030         file = popen(command, "r");
1031         if (!file)
1032                 goto out_free_filename;
1033 
1034         while (!feof(file))
1035                 if (symbol__parse_objdump_line(sym, map, file, privsize,
1036                             &lineno) < 0)
1037                         break;
1038 
1039         /*
1040          * kallsyms does not have symbol sizes so there may a nop at the end.
1041          * Remove it.
1042          */
1043         if (dso__is_kcore(dso))
1044                 delete_last_nop(sym);
1045 
1046         pclose(file);
1047 out_free_filename:
1048         if (delete_extract)
1049                 kcore_extract__delete(&kce);
1050         if (free_filename)
1051                 free(filename);
1052         return err;
1053 }
1054 
1055 static void insert_source_line(struct rb_root *root, struct source_line *src_line)
1056 {
1057         struct source_line *iter;
1058         struct rb_node **p = &root->rb_node;
1059         struct rb_node *parent = NULL;
1060         int i, ret;
1061 
1062         while (*p != NULL) {
1063                 parent = *p;
1064                 iter = rb_entry(parent, struct source_line, node);
1065 
1066                 ret = strcmp(iter->path, src_line->path);
1067                 if (ret == 0) {
1068                         for (i = 0; i < src_line->nr_pcnt; i++)
1069                                 iter->p[i].percent_sum += src_line->p[i].percent;
1070                         return;
1071                 }
1072 
1073                 if (ret < 0)
1074                         p = &(*p)->rb_left;
1075                 else
1076                         p = &(*p)->rb_right;
1077         }
1078 
1079         for (i = 0; i < src_line->nr_pcnt; i++)
1080                 src_line->p[i].percent_sum = src_line->p[i].percent;
1081 
1082         rb_link_node(&src_line->node, parent, p);
1083         rb_insert_color(&src_line->node, root);
1084 }
1085 
1086 static int cmp_source_line(struct source_line *a, struct source_line *b)
1087 {
1088         int i;
1089 
1090         for (i = 0; i < a->nr_pcnt; i++) {
1091                 if (a->p[i].percent_sum == b->p[i].percent_sum)
1092                         continue;
1093                 return a->p[i].percent_sum > b->p[i].percent_sum;
1094         }
1095 
1096         return 0;
1097 }
1098 
1099 static void __resort_source_line(struct rb_root *root, struct source_line *src_line)
1100 {
1101         struct source_line *iter;
1102         struct rb_node **p = &root->rb_node;
1103         struct rb_node *parent = NULL;
1104 
1105         while (*p != NULL) {
1106                 parent = *p;
1107                 iter = rb_entry(parent, struct source_line, node);
1108 
1109                 if (cmp_source_line(src_line, iter))
1110                         p = &(*p)->rb_left;
1111                 else
1112                         p = &(*p)->rb_right;
1113         }
1114 
1115         rb_link_node(&src_line->node, parent, p);
1116         rb_insert_color(&src_line->node, root);
1117 }
1118 
1119 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
1120 {
1121         struct source_line *src_line;
1122         struct rb_node *node;
1123 
1124         node = rb_first(src_root);
1125         while (node) {
1126                 struct rb_node *next;
1127 
1128                 src_line = rb_entry(node, struct source_line, node);
1129                 next = rb_next(node);
1130                 rb_erase(node, src_root);
1131 
1132                 __resort_source_line(dest_root, src_line);
1133                 node = next;
1134         }
1135 }
1136 
1137 static void symbol__free_source_line(struct symbol *sym, int len)
1138 {
1139         struct annotation *notes = symbol__annotation(sym);
1140         struct source_line *src_line = notes->src->lines;
1141         size_t sizeof_src_line;
1142         int i;
1143 
1144         sizeof_src_line = sizeof(*src_line) +
1145                           (sizeof(src_line->p) * (src_line->nr_pcnt - 1));
1146 
1147         for (i = 0; i < len; i++) {
1148                 free_srcline(src_line->path);
1149                 src_line = (void *)src_line + sizeof_src_line;
1150         }
1151 
1152         zfree(&notes->src->lines);
1153 }
1154 
1155 /* Get the filename:line for the colored entries */
1156 static int symbol__get_source_line(struct symbol *sym, struct map *map,
1157                                    struct perf_evsel *evsel,
1158                                    struct rb_root *root, int len)
1159 {
1160         u64 start;
1161         int i, k;
1162         int evidx = evsel->idx;
1163         struct source_line *src_line;
1164         struct annotation *notes = symbol__annotation(sym);
1165         struct sym_hist *h = annotation__histogram(notes, evidx);
1166         struct rb_root tmp_root = RB_ROOT;
1167         int nr_pcnt = 1;
1168         u64 h_sum = h->sum;
1169         size_t sizeof_src_line = sizeof(struct source_line);
1170 
1171         if (perf_evsel__is_group_event(evsel)) {
1172                 for (i = 1; i < evsel->nr_members; i++) {
1173                         h = annotation__histogram(notes, evidx + i);
1174                         h_sum += h->sum;
1175                 }
1176                 nr_pcnt = evsel->nr_members;
1177                 sizeof_src_line += (nr_pcnt - 1) * sizeof(src_line->p);
1178         }
1179 
1180         if (!h_sum)
1181                 return 0;
1182 
1183         src_line = notes->src->lines = calloc(len, sizeof_src_line);
1184         if (!notes->src->lines)
1185                 return -1;
1186 
1187         start = map__rip_2objdump(map, sym->start);
1188 
1189         for (i = 0; i < len; i++) {
1190                 u64 offset;
1191                 double percent_max = 0.0;
1192 
1193                 src_line->nr_pcnt = nr_pcnt;
1194 
1195                 for (k = 0; k < nr_pcnt; k++) {
1196                         h = annotation__histogram(notes, evidx + k);
1197                         src_line->p[k].percent = 100.0 * h->addr[i] / h->sum;
1198 
1199                         if (src_line->p[k].percent > percent_max)
1200                                 percent_max = src_line->p[k].percent;
1201                 }
1202 
1203                 if (percent_max <= 0.5)
1204                         goto next;
1205 
1206                 offset = start + i;
1207                 src_line->path = get_srcline(map->dso, offset, NULL, false);
1208                 insert_source_line(&tmp_root, src_line);
1209 
1210         next:
1211                 src_line = (void *)src_line + sizeof_src_line;
1212         }
1213 
1214         resort_source_line(root, &tmp_root);
1215         return 0;
1216 }
1217 
1218 static void print_summary(struct rb_root *root, const char *filename)
1219 {
1220         struct source_line *src_line;
1221         struct rb_node *node;
1222 
1223         printf("\nSorted summary for file %s\n", filename);
1224         printf("----------------------------------------------\n\n");
1225 
1226         if (RB_EMPTY_ROOT(root)) {
1227                 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
1228                 return;
1229         }
1230 
1231         node = rb_first(root);
1232         while (node) {
1233                 double percent, percent_max = 0.0;
1234                 const char *color;
1235                 char *path;
1236                 int i;
1237 
1238                 src_line = rb_entry(node, struct source_line, node);
1239                 for (i = 0; i < src_line->nr_pcnt; i++) {
1240                         percent = src_line->p[i].percent_sum;
1241                         color = get_percent_color(percent);
1242                         color_fprintf(stdout, color, " %7.2f", percent);
1243 
1244                         if (percent > percent_max)
1245                                 percent_max = percent;
1246                 }
1247 
1248                 path = src_line->path;
1249                 color = get_percent_color(percent_max);
1250                 color_fprintf(stdout, color, " %s\n", path);
1251 
1252                 node = rb_next(node);
1253         }
1254 }
1255 
1256 static void symbol__annotate_hits(struct symbol *sym, struct perf_evsel *evsel)
1257 {
1258         struct annotation *notes = symbol__annotation(sym);
1259         struct sym_hist *h = annotation__histogram(notes, evsel->idx);
1260         u64 len = symbol__size(sym), offset;
1261 
1262         for (offset = 0; offset < len; ++offset)
1263                 if (h->addr[offset] != 0)
1264                         printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
1265                                sym->start + offset, h->addr[offset]);
1266         printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->sum", h->sum);
1267 }
1268 
1269 int symbol__annotate_printf(struct symbol *sym, struct map *map,
1270                             struct perf_evsel *evsel, bool full_paths,
1271                             int min_pcnt, int max_lines, int context)
1272 {
1273         struct dso *dso = map->dso;
1274         char *filename;
1275         const char *d_filename;
1276         const char *evsel_name = perf_evsel__name(evsel);
1277         struct annotation *notes = symbol__annotation(sym);
1278         struct disasm_line *pos, *queue = NULL;
1279         u64 start = map__rip_2objdump(map, sym->start);
1280         int printed = 2, queue_len = 0;
1281         int more = 0;
1282         u64 len;
1283         int width = 8;
1284         int namelen, evsel_name_len, graph_dotted_len;
1285 
1286         filename = strdup(dso->long_name);
1287         if (!filename)
1288                 return -ENOMEM;
1289 
1290         if (full_paths)
1291                 d_filename = filename;
1292         else
1293                 d_filename = basename(filename);
1294 
1295         len = symbol__size(sym);
1296         namelen = strlen(d_filename);
1297         evsel_name_len = strlen(evsel_name);
1298 
1299         if (perf_evsel__is_group_event(evsel))
1300                 width *= evsel->nr_members;
1301 
1302         printf(" %-*.*s|        Source code & Disassembly of %s for %s\n",
1303                width, width, "Percent", d_filename, evsel_name);
1304 
1305         graph_dotted_len = width + namelen + evsel_name_len;
1306         printf("-%-*.*s-----------------------------------------\n",
1307                graph_dotted_len, graph_dotted_len, graph_dotted_line);
1308 
1309         if (verbose)
1310                 symbol__annotate_hits(sym, evsel);
1311 
1312         list_for_each_entry(pos, &notes->src->source, node) {
1313                 if (context && queue == NULL) {
1314                         queue = pos;
1315                         queue_len = 0;
1316                 }
1317 
1318                 switch (disasm_line__print(pos, sym, start, evsel, len,
1319                                             min_pcnt, printed, max_lines,
1320                                             queue)) {
1321                 case 0:
1322                         ++printed;
1323                         if (context) {
1324                                 printed += queue_len;
1325                                 queue = NULL;
1326                                 queue_len = 0;
1327                         }
1328                         break;
1329                 case 1:
1330                         /* filtered by max_lines */
1331                         ++more;
1332                         break;
1333                 case -1:
1334                 default:
1335                         /*
1336                          * Filtered by min_pcnt or non IP lines when
1337                          * context != 0
1338                          */
1339                         if (!context)
1340                                 break;
1341                         if (queue_len == context)
1342                                 queue = list_entry(queue->node.next, typeof(*queue), node);
1343                         else
1344                                 ++queue_len;
1345                         break;
1346                 }
1347         }
1348 
1349         free(filename);
1350 
1351         return more;
1352 }
1353 
1354 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
1355 {
1356         struct annotation *notes = symbol__annotation(sym);
1357         struct sym_hist *h = annotation__histogram(notes, evidx);
1358 
1359         memset(h, 0, notes->src->sizeof_sym_hist);
1360 }
1361 
1362 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
1363 {
1364         struct annotation *notes = symbol__annotation(sym);
1365         struct sym_hist *h = annotation__histogram(notes, evidx);
1366         int len = symbol__size(sym), offset;
1367 
1368         h->sum = 0;
1369         for (offset = 0; offset < len; ++offset) {
1370                 h->addr[offset] = h->addr[offset] * 7 / 8;
1371                 h->sum += h->addr[offset];
1372         }
1373 }
1374 
1375 void disasm__purge(struct list_head *head)
1376 {
1377         struct disasm_line *pos, *n;
1378 
1379         list_for_each_entry_safe(pos, n, head, node) {
1380                 list_del(&pos->node);
1381                 disasm_line__free(pos);
1382         }
1383 }
1384 
1385 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
1386 {
1387         size_t printed;
1388 
1389         if (dl->offset == -1)
1390                 return fprintf(fp, "%s\n", dl->line);
1391 
1392         printed = fprintf(fp, "%#" PRIx64 " %s", dl->offset, dl->name);
1393 
1394         if (dl->ops.raw[0] != '\0') {
1395                 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
1396                                    dl->ops.raw);
1397         }
1398 
1399         return printed + fprintf(fp, "\n");
1400 }
1401 
1402 size_t disasm__fprintf(struct list_head *head, FILE *fp)
1403 {
1404         struct disasm_line *pos;
1405         size_t printed = 0;
1406 
1407         list_for_each_entry(pos, head, node)
1408                 printed += disasm_line__fprintf(pos, fp);
1409 
1410         return printed;
1411 }
1412 
1413 int symbol__tty_annotate(struct symbol *sym, struct map *map,
1414                          struct perf_evsel *evsel, bool print_lines,
1415                          bool full_paths, int min_pcnt, int max_lines)
1416 {
1417         struct dso *dso = map->dso;
1418         struct rb_root source_line = RB_ROOT;
1419         u64 len;
1420 
1421         if (symbol__annotate(sym, map, 0) < 0)
1422                 return -1;
1423 
1424         len = symbol__size(sym);
1425 
1426         if (print_lines) {
1427                 symbol__get_source_line(sym, map, evsel, &source_line, len);
1428                 print_summary(&source_line, dso->long_name);
1429         }
1430 
1431         symbol__annotate_printf(sym, map, evsel, full_paths,
1432                                 min_pcnt, max_lines, 0);
1433         if (print_lines)
1434                 symbol__free_source_line(sym, len);
1435 
1436         disasm__purge(&symbol__annotation(sym)->src->source);
1437 
1438         return 0;
1439 }
1440 
1441 int hist_entry__annotate(struct hist_entry *he, size_t privsize)
1442 {
1443         return symbol__annotate(he->ms.sym, he->ms.map, privsize);
1444 }
1445 
1446 bool ui__has_annotation(void)
1447 {
1448         return use_browser == 1 && sort__has_sym;
1449 }
1450 

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