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10#include <errno.h>
11#include <inttypes.h>
12#include "util.h"
13#include "ui/ui.h"
14#include "sort.h"
15#include "build-id.h"
16#include "color.h"
17#include "config.h"
18#include "cache.h"
19#include "symbol.h"
20#include "units.h"
21#include "debug.h"
22#include "annotate.h"
23#include "evsel.h"
24#include "evlist.h"
25#include "block-range.h"
26#include "string2.h"
27#include "arch/common.h"
28#include <regex.h>
29#include <pthread.h>
30#include <linux/bitops.h>
31#include <linux/kernel.h>
32
33
34#include "ui/browser.h"
35
36
37
38
39
40#define LARROW_CHAR ((unsigned char)',')
41#define RARROW_CHAR ((unsigned char)'+')
42#define DARROW_CHAR ((unsigned char)'.')
43#define UARROW_CHAR ((unsigned char)'-')
44
45#include "sane_ctype.h"
46
47struct annotation_options annotation__default_options = {
48 .use_offset = true,
49 .jump_arrows = true,
50 .annotate_src = true,
51 .offset_level = ANNOTATION__OFFSET_JUMP_TARGETS,
52 .percent_type = PERCENT_PERIOD_LOCAL,
53};
54
55static regex_t file_lineno;
56
57static struct ins_ops *ins__find(struct arch *arch, const char *name);
58static void ins__sort(struct arch *arch);
59static int disasm_line__parse(char *line, const char **namep, char **rawp);
60
61struct arch {
62 const char *name;
63 struct ins *instructions;
64 size_t nr_instructions;
65 size_t nr_instructions_allocated;
66 struct ins_ops *(*associate_instruction_ops)(struct arch *arch, const char *name);
67 bool sorted_instructions;
68 bool initialized;
69 void *priv;
70 unsigned int model;
71 unsigned int family;
72 int (*init)(struct arch *arch, char *cpuid);
73 bool (*ins_is_fused)(struct arch *arch, const char *ins1,
74 const char *ins2);
75 struct {
76 char comment_char;
77 char skip_functions_char;
78 } objdump;
79};
80
81static struct ins_ops call_ops;
82static struct ins_ops dec_ops;
83static struct ins_ops jump_ops;
84static struct ins_ops mov_ops;
85static struct ins_ops nop_ops;
86static struct ins_ops lock_ops;
87static struct ins_ops ret_ops;
88
89static int arch__grow_instructions(struct arch *arch)
90{
91 struct ins *new_instructions;
92 size_t new_nr_allocated;
93
94 if (arch->nr_instructions_allocated == 0 && arch->instructions)
95 goto grow_from_non_allocated_table;
96
97 new_nr_allocated = arch->nr_instructions_allocated + 128;
98 new_instructions = realloc(arch->instructions, new_nr_allocated * sizeof(struct ins));
99 if (new_instructions == NULL)
100 return -1;
101
102out_update_instructions:
103 arch->instructions = new_instructions;
104 arch->nr_instructions_allocated = new_nr_allocated;
105 return 0;
106
107grow_from_non_allocated_table:
108 new_nr_allocated = arch->nr_instructions + 128;
109 new_instructions = calloc(new_nr_allocated, sizeof(struct ins));
110 if (new_instructions == NULL)
111 return -1;
112
113 memcpy(new_instructions, arch->instructions, arch->nr_instructions);
114 goto out_update_instructions;
115}
116
117static int arch__associate_ins_ops(struct arch* arch, const char *name, struct ins_ops *ops)
118{
119 struct ins *ins;
120
121 if (arch->nr_instructions == arch->nr_instructions_allocated &&
122 arch__grow_instructions(arch))
123 return -1;
124
125 ins = &arch->instructions[arch->nr_instructions];
126 ins->name = strdup(name);
127 if (!ins->name)
128 return -1;
129
130 ins->ops = ops;
131 arch->nr_instructions++;
132
133 ins__sort(arch);
134 return 0;
135}
136
137#include "arch/arm/annotate/instructions.c"
138#include "arch/arm64/annotate/instructions.c"
139#include "arch/x86/annotate/instructions.c"
140#include "arch/powerpc/annotate/instructions.c"
141#include "arch/s390/annotate/instructions.c"
142#include "arch/sparc/annotate/instructions.c"
143
144static struct arch architectures[] = {
145 {
146 .name = "arm",
147 .init = arm__annotate_init,
148 },
149 {
150 .name = "arm64",
151 .init = arm64__annotate_init,
152 },
153 {
154 .name = "x86",
155 .init = x86__annotate_init,
156 .instructions = x86__instructions,
157 .nr_instructions = ARRAY_SIZE(x86__instructions),
158 .ins_is_fused = x86__ins_is_fused,
159 .objdump = {
160 .comment_char = '#',
161 },
162 },
163 {
164 .name = "powerpc",
165 .init = powerpc__annotate_init,
166 },
167 {
168 .name = "s390",
169 .init = s390__annotate_init,
170 .objdump = {
171 .comment_char = '#',
172 },
173 },
174 {
175 .name = "sparc",
176 .init = sparc__annotate_init,
177 .objdump = {
178 .comment_char = '#',
179 },
180 },
181};
182
183static void ins__delete(struct ins_operands *ops)
184{
185 if (ops == NULL)
186 return;
187 zfree(&ops->source.raw);
188 zfree(&ops->source.name);
189 zfree(&ops->target.raw);
190 zfree(&ops->target.name);
191}
192
193static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size,
194 struct ins_operands *ops)
195{
196 return scnprintf(bf, size, "%-6s %s", ins->name, ops->raw);
197}
198
199int ins__scnprintf(struct ins *ins, char *bf, size_t size,
200 struct ins_operands *ops)
201{
202 if (ins->ops->scnprintf)
203 return ins->ops->scnprintf(ins, bf, size, ops);
204
205 return ins__raw_scnprintf(ins, bf, size, ops);
206}
207
208bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2)
209{
210 if (!arch || !arch->ins_is_fused)
211 return false;
212
213 return arch->ins_is_fused(arch, ins1, ins2);
214}
215
216static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
217{
218 char *endptr, *tok, *name;
219 struct map *map = ms->map;
220 struct addr_map_symbol target = {
221 .map = map,
222 };
223
224 ops->target.addr = strtoull(ops->raw, &endptr, 16);
225
226 name = strchr(endptr, '<');
227 if (name == NULL)
228 goto indirect_call;
229
230 name++;
231
232 if (arch->objdump.skip_functions_char &&
233 strchr(name, arch->objdump.skip_functions_char))
234 return -1;
235
236 tok = strchr(name, '>');
237 if (tok == NULL)
238 return -1;
239
240 *tok = '\0';
241 ops->target.name = strdup(name);
242 *tok = '>';
243
244 if (ops->target.name == NULL)
245 return -1;
246find_target:
247 target.addr = map__objdump_2mem(map, ops->target.addr);
248
249 if (map_groups__find_ams(&target) == 0 &&
250 map__rip_2objdump(target.map, map->map_ip(target.map, target.addr)) == ops->target.addr)
251 ops->target.sym = target.sym;
252
253 return 0;
254
255indirect_call:
256 tok = strchr(endptr, '*');
257 if (tok != NULL) {
258 endptr++;
259
260
261
262 if (strstr(endptr, "(%r") == NULL)
263 ops->target.addr = strtoull(endptr, NULL, 16);
264 }
265 goto find_target;
266}
267
268static int call__scnprintf(struct ins *ins, char *bf, size_t size,
269 struct ins_operands *ops)
270{
271 if (ops->target.sym)
272 return scnprintf(bf, size, "%-6s %s", ins->name, ops->target.sym->name);
273
274 if (ops->target.addr == 0)
275 return ins__raw_scnprintf(ins, bf, size, ops);
276
277 if (ops->target.name)
278 return scnprintf(bf, size, "%-6s %s", ins->name, ops->target.name);
279
280 return scnprintf(bf, size, "%-6s *%" PRIx64, ins->name, ops->target.addr);
281}
282
283static struct ins_ops call_ops = {
284 .parse = call__parse,
285 .scnprintf = call__scnprintf,
286};
287
288bool ins__is_call(const struct ins *ins)
289{
290 return ins->ops == &call_ops || ins->ops == &s390_call_ops;
291}
292
293
294
295
296
297static inline const char *validate_comma(const char *c, struct ins_operands *ops)
298{
299 if (ops->raw_comment && c > ops->raw_comment)
300 return NULL;
301
302 return c;
303}
304
305static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
306{
307 struct map *map = ms->map;
308 struct symbol *sym = ms->sym;
309 struct addr_map_symbol target = {
310 .map = map,
311 };
312 const char *c = strchr(ops->raw, ',');
313 u64 start, end;
314
315 ops->raw_comment = strchr(ops->raw, arch->objdump.comment_char);
316 c = validate_comma(c, ops);
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333 if (c++ != NULL) {
334 ops->target.addr = strtoull(c, NULL, 16);
335 if (!ops->target.addr) {
336 c = strchr(c, ',');
337 c = validate_comma(c, ops);
338 if (c++ != NULL)
339 ops->target.addr = strtoull(c, NULL, 16);
340 }
341 } else {
342 ops->target.addr = strtoull(ops->raw, NULL, 16);
343 }
344
345 target.addr = map__objdump_2mem(map, ops->target.addr);
346 start = map->unmap_ip(map, sym->start),
347 end = map->unmap_ip(map, sym->end);
348
349 ops->target.outside = target.addr < start || target.addr > end;
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369 if (map_groups__find_ams(&target) == 0 &&
370 map__rip_2objdump(target.map, map->map_ip(target.map, target.addr)) == ops->target.addr)
371 ops->target.sym = target.sym;
372
373 if (!ops->target.outside) {
374 ops->target.offset = target.addr - start;
375 ops->target.offset_avail = true;
376 } else {
377 ops->target.offset_avail = false;
378 }
379
380 return 0;
381}
382
383static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
384 struct ins_operands *ops)
385{
386 const char *c;
387
388 if (!ops->target.addr || ops->target.offset < 0)
389 return ins__raw_scnprintf(ins, bf, size, ops);
390
391 if (ops->target.outside && ops->target.sym != NULL)
392 return scnprintf(bf, size, "%-6s %s", ins->name, ops->target.sym->name);
393
394 c = strchr(ops->raw, ',');
395 c = validate_comma(c, ops);
396
397 if (c != NULL) {
398 const char *c2 = strchr(c + 1, ',');
399
400 c2 = validate_comma(c2, ops);
401
402 if (c2 != NULL)
403 c = c2;
404 c++;
405
406
407 if (*c == ' ')
408 c++;
409 }
410
411 return scnprintf(bf, size, "%-6s %.*s%" PRIx64,
412 ins->name, c ? c - ops->raw : 0, ops->raw,
413 ops->target.offset);
414}
415
416static struct ins_ops jump_ops = {
417 .parse = jump__parse,
418 .scnprintf = jump__scnprintf,
419};
420
421bool ins__is_jump(const struct ins *ins)
422{
423 return ins->ops == &jump_ops;
424}
425
426static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep)
427{
428 char *endptr, *name, *t;
429
430 if (strstr(raw, "(%rip)") == NULL)
431 return 0;
432
433 *addrp = strtoull(comment, &endptr, 16);
434 if (endptr == comment)
435 return 0;
436 name = strchr(endptr, '<');
437 if (name == NULL)
438 return -1;
439
440 name++;
441
442 t = strchr(name, '>');
443 if (t == NULL)
444 return 0;
445
446 *t = '\0';
447 *namep = strdup(name);
448 *t = '>';
449
450 return 0;
451}
452
453static int lock__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
454{
455 ops->locked.ops = zalloc(sizeof(*ops->locked.ops));
456 if (ops->locked.ops == NULL)
457 return 0;
458
459 if (disasm_line__parse(ops->raw, &ops->locked.ins.name, &ops->locked.ops->raw) < 0)
460 goto out_free_ops;
461
462 ops->locked.ins.ops = ins__find(arch, ops->locked.ins.name);
463
464 if (ops->locked.ins.ops == NULL)
465 goto out_free_ops;
466
467 if (ops->locked.ins.ops->parse &&
468 ops->locked.ins.ops->parse(arch, ops->locked.ops, ms) < 0)
469 goto out_free_ops;
470
471 return 0;
472
473out_free_ops:
474 zfree(&ops->locked.ops);
475 return 0;
476}
477
478static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
479 struct ins_operands *ops)
480{
481 int printed;
482
483 if (ops->locked.ins.ops == NULL)
484 return ins__raw_scnprintf(ins, bf, size, ops);
485
486 printed = scnprintf(bf, size, "%-6s ", ins->name);
487 return printed + ins__scnprintf(&ops->locked.ins, bf + printed,
488 size - printed, ops->locked.ops);
489}
490
491static void lock__delete(struct ins_operands *ops)
492{
493 struct ins *ins = &ops->locked.ins;
494
495 if (ins->ops && ins->ops->free)
496 ins->ops->free(ops->locked.ops);
497 else
498 ins__delete(ops->locked.ops);
499
500 zfree(&ops->locked.ops);
501 zfree(&ops->target.raw);
502 zfree(&ops->target.name);
503}
504
505static struct ins_ops lock_ops = {
506 .free = lock__delete,
507 .parse = lock__parse,
508 .scnprintf = lock__scnprintf,
509};
510
511static int mov__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)
512{
513 char *s = strchr(ops->raw, ','), *target, *comment, prev;
514
515 if (s == NULL)
516 return -1;
517
518 *s = '\0';
519 ops->source.raw = strdup(ops->raw);
520 *s = ',';
521
522 if (ops->source.raw == NULL)
523 return -1;
524
525 target = ++s;
526 comment = strchr(s, arch->objdump.comment_char);
527
528 if (comment != NULL)
529 s = comment - 1;
530 else
531 s = strchr(s, '\0') - 1;
532
533 while (s > target && isspace(s[0]))
534 --s;
535 s++;
536 prev = *s;
537 *s = '\0';
538
539 ops->target.raw = strdup(target);
540 *s = prev;
541
542 if (ops->target.raw == NULL)
543 goto out_free_source;
544
545 if (comment == NULL)
546 return 0;
547
548 comment = ltrim(comment);
549 comment__symbol(ops->source.raw, comment + 1, &ops->source.addr, &ops->source.name);
550 comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name);
551
552 return 0;
553
554out_free_source:
555 zfree(&ops->source.raw);
556 return -1;
557}
558
559static int mov__scnprintf(struct ins *ins, char *bf, size_t size,
560 struct ins_operands *ops)
561{
562 return scnprintf(bf, size, "%-6s %s,%s", ins->name,
563 ops->source.name ?: ops->source.raw,
564 ops->target.name ?: ops->target.raw);
565}
566
567static struct ins_ops mov_ops = {
568 .parse = mov__parse,
569 .scnprintf = mov__scnprintf,
570};
571
572static int dec__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)
573{
574 char *target, *comment, *s, prev;
575
576 target = s = ops->raw;
577
578 while (s[0] != '\0' && !isspace(s[0]))
579 ++s;
580 prev = *s;
581 *s = '\0';
582
583 ops->target.raw = strdup(target);
584 *s = prev;
585
586 if (ops->target.raw == NULL)
587 return -1;
588
589 comment = strchr(s, arch->objdump.comment_char);
590 if (comment == NULL)
591 return 0;
592
593 comment = ltrim(comment);
594 comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name);
595
596 return 0;
597}
598
599static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
600 struct ins_operands *ops)
601{
602 return scnprintf(bf, size, "%-6s %s", ins->name,
603 ops->target.name ?: ops->target.raw);
604}
605
606static struct ins_ops dec_ops = {
607 .parse = dec__parse,
608 .scnprintf = dec__scnprintf,
609};
610
611static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size,
612 struct ins_operands *ops __maybe_unused)
613{
614 return scnprintf(bf, size, "%-6s", "nop");
615}
616
617static struct ins_ops nop_ops = {
618 .scnprintf = nop__scnprintf,
619};
620
621static struct ins_ops ret_ops = {
622 .scnprintf = ins__raw_scnprintf,
623};
624
625bool ins__is_ret(const struct ins *ins)
626{
627 return ins->ops == &ret_ops;
628}
629
630bool ins__is_lock(const struct ins *ins)
631{
632 return ins->ops == &lock_ops;
633}
634
635static int ins__key_cmp(const void *name, const void *insp)
636{
637 const struct ins *ins = insp;
638
639 return strcmp(name, ins->name);
640}
641
642static int ins__cmp(const void *a, const void *b)
643{
644 const struct ins *ia = a;
645 const struct ins *ib = b;
646
647 return strcmp(ia->name, ib->name);
648}
649
650static void ins__sort(struct arch *arch)
651{
652 const int nmemb = arch->nr_instructions;
653
654 qsort(arch->instructions, nmemb, sizeof(struct ins), ins__cmp);
655}
656
657static struct ins_ops *__ins__find(struct arch *arch, const char *name)
658{
659 struct ins *ins;
660 const int nmemb = arch->nr_instructions;
661
662 if (!arch->sorted_instructions) {
663 ins__sort(arch);
664 arch->sorted_instructions = true;
665 }
666
667 ins = bsearch(name, arch->instructions, nmemb, sizeof(struct ins), ins__key_cmp);
668 return ins ? ins->ops : NULL;
669}
670
671static struct ins_ops *ins__find(struct arch *arch, const char *name)
672{
673 struct ins_ops *ops = __ins__find(arch, name);
674
675 if (!ops && arch->associate_instruction_ops)
676 ops = arch->associate_instruction_ops(arch, name);
677
678 return ops;
679}
680
681static int arch__key_cmp(const void *name, const void *archp)
682{
683 const struct arch *arch = archp;
684
685 return strcmp(name, arch->name);
686}
687
688static int arch__cmp(const void *a, const void *b)
689{
690 const struct arch *aa = a;
691 const struct arch *ab = b;
692
693 return strcmp(aa->name, ab->name);
694}
695
696static void arch__sort(void)
697{
698 const int nmemb = ARRAY_SIZE(architectures);
699
700 qsort(architectures, nmemb, sizeof(struct arch), arch__cmp);
701}
702
703static struct arch *arch__find(const char *name)
704{
705 const int nmemb = ARRAY_SIZE(architectures);
706 static bool sorted;
707
708 if (!sorted) {
709 arch__sort();
710 sorted = true;
711 }
712
713 return bsearch(name, architectures, nmemb, sizeof(struct arch), arch__key_cmp);
714}
715
716static struct annotated_source *annotated_source__new(void)
717{
718 struct annotated_source *src = zalloc(sizeof(*src));
719
720 if (src != NULL)
721 INIT_LIST_HEAD(&src->source);
722
723 return src;
724}
725
726static __maybe_unused void annotated_source__delete(struct annotated_source *src)
727{
728 if (src == NULL)
729 return;
730 zfree(&src->histograms);
731 zfree(&src->cycles_hist);
732 free(src);
733}
734
735static int annotated_source__alloc_histograms(struct annotated_source *src,
736 size_t size, int nr_hists)
737{
738 size_t sizeof_sym_hist;
739
740
741
742
743
744
745
746
747 if (size == 0)
748 size = 1;
749
750
751 if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(struct sym_hist_entry))
752 return -1;
753
754 sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(struct sym_hist_entry));
755
756
757 if (sizeof_sym_hist > SIZE_MAX / nr_hists)
758 return -1;
759
760 src->sizeof_sym_hist = sizeof_sym_hist;
761 src->nr_histograms = nr_hists;
762 src->histograms = calloc(nr_hists, sizeof_sym_hist) ;
763 return src->histograms ? 0 : -1;
764}
765
766
767static int symbol__alloc_hist_cycles(struct symbol *sym)
768{
769 struct annotation *notes = symbol__annotation(sym);
770 const size_t size = symbol__size(sym);
771
772 notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist));
773 if (notes->src->cycles_hist == NULL)
774 return -1;
775 return 0;
776}
777
778void symbol__annotate_zero_histograms(struct symbol *sym)
779{
780 struct annotation *notes = symbol__annotation(sym);
781
782 pthread_mutex_lock(¬es->lock);
783 if (notes->src != NULL) {
784 memset(notes->src->histograms, 0,
785 notes->src->nr_histograms * notes->src->sizeof_sym_hist);
786 if (notes->src->cycles_hist)
787 memset(notes->src->cycles_hist, 0,
788 symbol__size(sym) * sizeof(struct cyc_hist));
789 }
790 pthread_mutex_unlock(¬es->lock);
791}
792
793static int __symbol__account_cycles(struct cyc_hist *ch,
794 u64 start,
795 unsigned offset, unsigned cycles,
796 unsigned have_start)
797{
798
799
800
801
802
803
804
805
806 ch[offset].num_aggr++;
807 ch[offset].cycles_aggr += cycles;
808
809 if (cycles > ch[offset].cycles_max)
810 ch[offset].cycles_max = cycles;
811
812 if (ch[offset].cycles_min) {
813 if (cycles && cycles < ch[offset].cycles_min)
814 ch[offset].cycles_min = cycles;
815 } else
816 ch[offset].cycles_min = cycles;
817
818 if (!have_start && ch[offset].have_start)
819 return 0;
820 if (ch[offset].num) {
821 if (have_start && (!ch[offset].have_start ||
822 ch[offset].start > start)) {
823 ch[offset].have_start = 0;
824 ch[offset].cycles = 0;
825 ch[offset].num = 0;
826 if (ch[offset].reset < 0xffff)
827 ch[offset].reset++;
828 } else if (have_start &&
829 ch[offset].start < start)
830 return 0;
831 }
832 ch[offset].have_start = have_start;
833 ch[offset].start = start;
834 ch[offset].cycles += cycles;
835 ch[offset].num++;
836 return 0;
837}
838
839static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
840 struct annotated_source *src, int evidx, u64 addr,
841 struct perf_sample *sample)
842{
843 unsigned offset;
844 struct sym_hist *h;
845
846 pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr));
847
848 if ((addr < sym->start || addr >= sym->end) &&
849 (addr != sym->end || sym->start != sym->end)) {
850 pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n",
851 __func__, __LINE__, sym->name, sym->start, addr, sym->end);
852 return -ERANGE;
853 }
854
855 offset = addr - sym->start;
856 h = annotated_source__histogram(src, evidx);
857 if (h == NULL) {
858 pr_debug("%s(%d): ENOMEM! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 ", func: %d\n",
859 __func__, __LINE__, sym->name, sym->start, addr, sym->end, sym->type == STT_FUNC);
860 return -ENOMEM;
861 }
862 h->nr_samples++;
863 h->addr[offset].nr_samples++;
864 h->period += sample->period;
865 h->addr[offset].period += sample->period;
866
867 pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64
868 ", evidx=%d] => nr_samples: %" PRIu64 ", period: %" PRIu64 "\n",
869 sym->start, sym->name, addr, addr - sym->start, evidx,
870 h->addr[offset].nr_samples, h->addr[offset].period);
871 return 0;
872}
873
874static struct cyc_hist *symbol__cycles_hist(struct symbol *sym)
875{
876 struct annotation *notes = symbol__annotation(sym);
877
878 if (notes->src == NULL) {
879 notes->src = annotated_source__new();
880 if (notes->src == NULL)
881 return NULL;
882 goto alloc_cycles_hist;
883 }
884
885 if (!notes->src->cycles_hist) {
886alloc_cycles_hist:
887 symbol__alloc_hist_cycles(sym);
888 }
889
890 return notes->src->cycles_hist;
891}
892
893struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists)
894{
895 struct annotation *notes = symbol__annotation(sym);
896
897 if (notes->src == NULL) {
898 notes->src = annotated_source__new();
899 if (notes->src == NULL)
900 return NULL;
901 goto alloc_histograms;
902 }
903
904 if (notes->src->histograms == NULL) {
905alloc_histograms:
906 annotated_source__alloc_histograms(notes->src, symbol__size(sym),
907 nr_hists);
908 }
909
910 return notes->src;
911}
912
913static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
914 struct perf_evsel *evsel, u64 addr,
915 struct perf_sample *sample)
916{
917 struct annotated_source *src;
918
919 if (sym == NULL)
920 return 0;
921 src = symbol__hists(sym, evsel->evlist->nr_entries);
922 if (src == NULL)
923 return -ENOMEM;
924 return __symbol__inc_addr_samples(sym, map, src, evsel->idx, addr, sample);
925}
926
927static int symbol__account_cycles(u64 addr, u64 start,
928 struct symbol *sym, unsigned cycles)
929{
930 struct cyc_hist *cycles_hist;
931 unsigned offset;
932
933 if (sym == NULL)
934 return 0;
935 cycles_hist = symbol__cycles_hist(sym);
936 if (cycles_hist == NULL)
937 return -ENOMEM;
938 if (addr < sym->start || addr >= sym->end)
939 return -ERANGE;
940
941 if (start) {
942 if (start < sym->start || start >= sym->end)
943 return -ERANGE;
944 if (start >= addr)
945 start = 0;
946 }
947 offset = addr - sym->start;
948 return __symbol__account_cycles(cycles_hist,
949 start ? start - sym->start : 0,
950 offset, cycles,
951 !!start);
952}
953
954int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
955 struct addr_map_symbol *start,
956 unsigned cycles)
957{
958 u64 saddr = 0;
959 int err;
960
961 if (!cycles)
962 return 0;
963
964
965
966
967
968
969
970
971 if (start &&
972 (start->sym == ams->sym ||
973 (ams->sym &&
974 start->addr == ams->sym->start + ams->map->start)))
975 saddr = start->al_addr;
976 if (saddr == 0)
977 pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n",
978 ams->addr,
979 start ? start->addr : 0,
980 ams->sym ? ams->sym->start + ams->map->start : 0,
981 saddr);
982 err = symbol__account_cycles(ams->al_addr, saddr, ams->sym, cycles);
983 if (err)
984 pr_debug2("account_cycles failed %d\n", err);
985 return err;
986}
987
988static unsigned annotation__count_insn(struct annotation *notes, u64 start, u64 end)
989{
990 unsigned n_insn = 0;
991 u64 offset;
992
993 for (offset = start; offset <= end; offset++) {
994 if (notes->offsets[offset])
995 n_insn++;
996 }
997 return n_insn;
998}
999
1000static void annotation__count_and_fill(struct annotation *notes, u64 start, u64 end, struct cyc_hist *ch)
1001{
1002 unsigned n_insn;
1003 u64 offset;
1004
1005 n_insn = annotation__count_insn(notes, start, end);
1006 if (n_insn && ch->num && ch->cycles) {
1007 float ipc = n_insn / ((double)ch->cycles / (double)ch->num);
1008
1009
1010 if (ch->reset >= 0x7fff || ch->reset >= ch->num / 2)
1011 return;
1012
1013 for (offset = start; offset <= end; offset++) {
1014 struct annotation_line *al = notes->offsets[offset];
1015
1016 if (al)
1017 al->ipc = ipc;
1018 }
1019 }
1020}
1021
1022void annotation__compute_ipc(struct annotation *notes, size_t size)
1023{
1024 u64 offset;
1025
1026 if (!notes->src || !notes->src->cycles_hist)
1027 return;
1028
1029 pthread_mutex_lock(¬es->lock);
1030 for (offset = 0; offset < size; ++offset) {
1031 struct cyc_hist *ch;
1032
1033 ch = ¬es->src->cycles_hist[offset];
1034 if (ch && ch->cycles) {
1035 struct annotation_line *al;
1036
1037 if (ch->have_start)
1038 annotation__count_and_fill(notes, ch->start, offset, ch);
1039 al = notes->offsets[offset];
1040 if (al && ch->num_aggr) {
1041 al->cycles = ch->cycles_aggr / ch->num_aggr;
1042 al->cycles_max = ch->cycles_max;
1043 al->cycles_min = ch->cycles_min;
1044 }
1045 notes->have_cycles = true;
1046 }
1047 }
1048 pthread_mutex_unlock(¬es->lock);
1049}
1050
1051int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
1052 struct perf_evsel *evsel)
1053{
1054 return symbol__inc_addr_samples(ams->sym, ams->map, evsel, ams->al_addr, sample);
1055}
1056
1057int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample,
1058 struct perf_evsel *evsel, u64 ip)
1059{
1060 return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evsel, ip, sample);
1061}
1062
1063static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, struct map_symbol *ms)
1064{
1065 dl->ins.ops = ins__find(arch, dl->ins.name);
1066
1067 if (!dl->ins.ops)
1068 return;
1069
1070 if (dl->ins.ops->parse && dl->ins.ops->parse(arch, &dl->ops, ms) < 0)
1071 dl->ins.ops = NULL;
1072}
1073
1074static int disasm_line__parse(char *line, const char **namep, char **rawp)
1075{
1076 char tmp, *name = ltrim(line);
1077
1078 if (name[0] == '\0')
1079 return -1;
1080
1081 *rawp = name + 1;
1082
1083 while ((*rawp)[0] != '\0' && !isspace((*rawp)[0]))
1084 ++*rawp;
1085
1086 tmp = (*rawp)[0];
1087 (*rawp)[0] = '\0';
1088 *namep = strdup(name);
1089
1090 if (*namep == NULL)
1091 goto out_free_name;
1092
1093 (*rawp)[0] = tmp;
1094 *rawp = ltrim(*rawp);
1095
1096 return 0;
1097
1098out_free_name:
1099 free((void *)namep);
1100 *namep = NULL;
1101 return -1;
1102}
1103
1104struct annotate_args {
1105 size_t privsize;
1106 struct arch *arch;
1107 struct map_symbol ms;
1108 struct perf_evsel *evsel;
1109 struct annotation_options *options;
1110 s64 offset;
1111 char *line;
1112 int line_nr;
1113};
1114
1115static void annotation_line__delete(struct annotation_line *al)
1116{
1117 void *ptr = (void *) al - al->privsize;
1118
1119 free_srcline(al->path);
1120 zfree(&al->line);
1121 free(ptr);
1122}
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135static struct annotation_line *
1136annotation_line__new(struct annotate_args *args, size_t privsize)
1137{
1138 struct annotation_line *al;
1139 struct perf_evsel *evsel = args->evsel;
1140 size_t size = privsize + sizeof(*al);
1141 int nr = 1;
1142
1143 if (perf_evsel__is_group_event(evsel))
1144 nr = evsel->nr_members;
1145
1146 size += sizeof(al->data[0]) * nr;
1147
1148 al = zalloc(size);
1149 if (al) {
1150 al = (void *) al + privsize;
1151 al->privsize = privsize;
1152 al->offset = args->offset;
1153 al->line = strdup(args->line);
1154 al->line_nr = args->line_nr;
1155 al->data_nr = nr;
1156 }
1157
1158 return al;
1159}
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173static struct disasm_line *disasm_line__new(struct annotate_args *args)
1174{
1175 struct disasm_line *dl = NULL;
1176 struct annotation_line *al;
1177 size_t privsize = args->privsize + offsetof(struct disasm_line, al);
1178
1179 al = annotation_line__new(args, privsize);
1180 if (al != NULL) {
1181 dl = disasm_line(al);
1182
1183 if (dl->al.line == NULL)
1184 goto out_delete;
1185
1186 if (args->offset != -1) {
1187 if (disasm_line__parse(dl->al.line, &dl->ins.name, &dl->ops.raw) < 0)
1188 goto out_free_line;
1189
1190 disasm_line__init_ins(dl, args->arch, &args->ms);
1191 }
1192 }
1193
1194 return dl;
1195
1196out_free_line:
1197 zfree(&dl->al.line);
1198out_delete:
1199 free(dl);
1200 return NULL;
1201}
1202
1203void disasm_line__free(struct disasm_line *dl)
1204{
1205 if (dl->ins.ops && dl->ins.ops->free)
1206 dl->ins.ops->free(&dl->ops);
1207 else
1208 ins__delete(&dl->ops);
1209 free((void *)dl->ins.name);
1210 dl->ins.name = NULL;
1211 annotation_line__delete(&dl->al);
1212}
1213
1214int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw)
1215{
1216 if (raw || !dl->ins.ops)
1217 return scnprintf(bf, size, "%-6s %s", dl->ins.name, dl->ops.raw);
1218
1219 return ins__scnprintf(&dl->ins, bf, size, &dl->ops);
1220}
1221
1222static void annotation_line__add(struct annotation_line *al, struct list_head *head)
1223{
1224 list_add_tail(&al->node, head);
1225}
1226
1227struct annotation_line *
1228annotation_line__next(struct annotation_line *pos, struct list_head *head)
1229{
1230 list_for_each_entry_continue(pos, head, node)
1231 if (pos->offset >= 0)
1232 return pos;
1233
1234 return NULL;
1235}
1236
1237static const char *annotate__address_color(struct block_range *br)
1238{
1239 double cov = block_range__coverage(br);
1240
1241 if (cov >= 0) {
1242
1243 if (cov > 0.75)
1244 return PERF_COLOR_RED;
1245
1246
1247 if (cov < 0.01)
1248 return PERF_COLOR_NORMAL;
1249 }
1250
1251 return PERF_COLOR_MAGENTA;
1252}
1253
1254static const char *annotate__asm_color(struct block_range *br)
1255{
1256 double cov = block_range__coverage(br);
1257
1258 if (cov >= 0) {
1259
1260 if (cov < 0.01)
1261 return PERF_COLOR_NORMAL;
1262 }
1263
1264 return PERF_COLOR_BLUE;
1265}
1266
1267static void annotate__branch_printf(struct block_range *br, u64 addr)
1268{
1269 bool emit_comment = true;
1270
1271 if (!br)
1272 return;
1273
1274#if 1
1275 if (br->is_target && br->start == addr) {
1276 struct block_range *branch = br;
1277 double p;
1278
1279
1280
1281
1282 while (!branch->is_branch)
1283 branch = block_range__next(branch);
1284
1285 p = 100 *(double)br->entry / branch->coverage;
1286
1287 if (p > 0.1) {
1288 if (emit_comment) {
1289 emit_comment = false;
1290 printf("\t#");
1291 }
1292
1293
1294
1295
1296
1297 printf(" +%.2f%%", p);
1298 }
1299 }
1300#endif
1301 if (br->is_branch && br->end == addr) {
1302 double p = 100*(double)br->taken / br->coverage;
1303
1304 if (p > 0.1) {
1305 if (emit_comment) {
1306 emit_comment = false;
1307 printf("\t#");
1308 }
1309
1310
1311
1312
1313
1314 printf(" -%.2f%% (p:%.2f%%)", p, 100*(double)br->pred / br->taken);
1315 }
1316 }
1317}
1318
1319static int disasm_line__print(struct disasm_line *dl, u64 start, int addr_fmt_width)
1320{
1321 s64 offset = dl->al.offset;
1322 const u64 addr = start + offset;
1323 struct block_range *br;
1324
1325 br = block_range__find(addr);
1326 color_fprintf(stdout, annotate__address_color(br), " %*" PRIx64 ":", addr_fmt_width, addr);
1327 color_fprintf(stdout, annotate__asm_color(br), "%s", dl->al.line);
1328 annotate__branch_printf(br, addr);
1329 return 0;
1330}
1331
1332static int
1333annotation_line__print(struct annotation_line *al, struct symbol *sym, u64 start,
1334 struct perf_evsel *evsel, u64 len, int min_pcnt, int printed,
1335 int max_lines, struct annotation_line *queue, int addr_fmt_width,
1336 int percent_type)
1337{
1338 struct disasm_line *dl = container_of(al, struct disasm_line, al);
1339 static const char *prev_line;
1340 static const char *prev_color;
1341
1342 if (al->offset != -1) {
1343 double max_percent = 0.0;
1344 int i, nr_percent = 1;
1345 const char *color;
1346 struct annotation *notes = symbol__annotation(sym);
1347
1348 for (i = 0; i < al->data_nr; i++) {
1349 double percent;
1350
1351 percent = annotation_data__percent(&al->data[i],
1352 percent_type);
1353
1354 if (percent > max_percent)
1355 max_percent = percent;
1356 }
1357
1358 if (al->data_nr > nr_percent)
1359 nr_percent = al->data_nr;
1360
1361 if (max_percent < min_pcnt)
1362 return -1;
1363
1364 if (max_lines && printed >= max_lines)
1365 return 1;
1366
1367 if (queue != NULL) {
1368 list_for_each_entry_from(queue, ¬es->src->source, node) {
1369 if (queue == al)
1370 break;
1371 annotation_line__print(queue, sym, start, evsel, len,
1372 0, 0, 1, NULL, addr_fmt_width,
1373 percent_type);
1374 }
1375 }
1376
1377 color = get_percent_color(max_percent);
1378
1379
1380
1381
1382
1383
1384 if (al->path) {
1385 if (!prev_line || strcmp(prev_line, al->path)
1386 || color != prev_color) {
1387 color_fprintf(stdout, color, " %s", al->path);
1388 prev_line = al->path;
1389 prev_color = color;
1390 }
1391 }
1392
1393 for (i = 0; i < nr_percent; i++) {
1394 struct annotation_data *data = &al->data[i];
1395 double percent;
1396
1397 percent = annotation_data__percent(data, percent_type);
1398 color = get_percent_color(percent);
1399
1400 if (symbol_conf.show_total_period)
1401 color_fprintf(stdout, color, " %11" PRIu64,
1402 data->he.period);
1403 else if (symbol_conf.show_nr_samples)
1404 color_fprintf(stdout, color, " %7" PRIu64,
1405 data->he.nr_samples);
1406 else
1407 color_fprintf(stdout, color, " %7.2f", percent);
1408 }
1409
1410 printf(" : ");
1411
1412 disasm_line__print(dl, start, addr_fmt_width);
1413 printf("\n");
1414 } else if (max_lines && printed >= max_lines)
1415 return 1;
1416 else {
1417 int width = symbol_conf.show_total_period ? 12 : 8;
1418
1419 if (queue)
1420 return -1;
1421
1422 if (perf_evsel__is_group_event(evsel))
1423 width *= evsel->nr_members;
1424
1425 if (!*al->line)
1426 printf(" %*s:\n", width, " ");
1427 else
1428 printf(" %*s: %*s %s\n", width, " ", addr_fmt_width, " ", al->line);
1429 }
1430
1431 return 0;
1432}
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454static int symbol__parse_objdump_line(struct symbol *sym, FILE *file,
1455 struct annotate_args *args,
1456 int *line_nr)
1457{
1458 struct map *map = args->ms.map;
1459 struct annotation *notes = symbol__annotation(sym);
1460 struct disasm_line *dl;
1461 char *line = NULL, *parsed_line, *tmp, *tmp2;
1462 size_t line_len;
1463 s64 line_ip, offset = -1;
1464 regmatch_t match[2];
1465
1466 if (getline(&line, &line_len, file) < 0)
1467 return -1;
1468
1469 if (!line)
1470 return -1;
1471
1472 line_ip = -1;
1473 parsed_line = rtrim(line);
1474
1475
1476 if (regexec(&file_lineno, parsed_line, 2, match, 0) == 0) {
1477 *line_nr = atoi(parsed_line + match[1].rm_so);
1478 return 0;
1479 }
1480
1481 tmp = ltrim(parsed_line);
1482 if (*tmp) {
1483
1484
1485
1486 line_ip = strtoull(tmp, &tmp2, 16);
1487 if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0')
1488 line_ip = -1;
1489 }
1490
1491 if (line_ip != -1) {
1492 u64 start = map__rip_2objdump(map, sym->start),
1493 end = map__rip_2objdump(map, sym->end);
1494
1495 offset = line_ip - start;
1496 if ((u64)line_ip < start || (u64)line_ip >= end)
1497 offset = -1;
1498 else
1499 parsed_line = tmp2 + 1;
1500 }
1501
1502 args->offset = offset;
1503 args->line = parsed_line;
1504 args->line_nr = *line_nr;
1505 args->ms.sym = sym;
1506
1507 dl = disasm_line__new(args);
1508 free(line);
1509 (*line_nr)++;
1510
1511 if (dl == NULL)
1512 return -1;
1513
1514 if (!disasm_line__has_local_offset(dl)) {
1515 dl->ops.target.offset = dl->ops.target.addr -
1516 map__rip_2objdump(map, sym->start);
1517 dl->ops.target.offset_avail = true;
1518 }
1519
1520
1521 if (dl->ins.ops && ins__is_call(&dl->ins) && !dl->ops.target.sym) {
1522 struct addr_map_symbol target = {
1523 .map = map,
1524 .addr = dl->ops.target.addr,
1525 };
1526
1527 if (!map_groups__find_ams(&target) &&
1528 target.sym->start == target.al_addr)
1529 dl->ops.target.sym = target.sym;
1530 }
1531
1532 annotation_line__add(&dl->al, ¬es->src->source);
1533
1534 return 0;
1535}
1536
1537static __attribute__((constructor)) void symbol__init_regexpr(void)
1538{
1539 regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED);
1540}
1541
1542static void delete_last_nop(struct symbol *sym)
1543{
1544 struct annotation *notes = symbol__annotation(sym);
1545 struct list_head *list = ¬es->src->source;
1546 struct disasm_line *dl;
1547
1548 while (!list_empty(list)) {
1549 dl = list_entry(list->prev, struct disasm_line, al.node);
1550
1551 if (dl->ins.ops) {
1552 if (dl->ins.ops != &nop_ops)
1553 return;
1554 } else {
1555 if (!strstr(dl->al.line, " nop ") &&
1556 !strstr(dl->al.line, " nopl ") &&
1557 !strstr(dl->al.line, " nopw "))
1558 return;
1559 }
1560
1561 list_del(&dl->al.node);
1562 disasm_line__free(dl);
1563 }
1564}
1565
1566int symbol__strerror_disassemble(struct symbol *sym __maybe_unused, struct map *map,
1567 int errnum, char *buf, size_t buflen)
1568{
1569 struct dso *dso = map->dso;
1570
1571 BUG_ON(buflen == 0);
1572
1573 if (errnum >= 0) {
1574 str_error_r(errnum, buf, buflen);
1575 return 0;
1576 }
1577
1578 switch (errnum) {
1579 case SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX: {
1580 char bf[SBUILD_ID_SIZE + 15] = " with build id ";
1581 char *build_id_msg = NULL;
1582
1583 if (dso->has_build_id) {
1584 build_id__sprintf(dso->build_id,
1585 sizeof(dso->build_id), bf + 15);
1586 build_id_msg = bf;
1587 }
1588 scnprintf(buf, buflen,
1589 "No vmlinux file%s\nwas found in the path.\n\n"
1590 "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n"
1591 "Please use:\n\n"
1592 " perf buildid-cache -vu vmlinux\n\n"
1593 "or:\n\n"
1594 " --vmlinux vmlinux\n", build_id_msg ?: "");
1595 }
1596 break;
1597 default:
1598 scnprintf(buf, buflen, "Internal error: Invalid %d error code\n", errnum);
1599 break;
1600 }
1601
1602 return 0;
1603}
1604
1605static int dso__disassemble_filename(struct dso *dso, char *filename, size_t filename_size)
1606{
1607 char linkname[PATH_MAX];
1608 char *build_id_filename;
1609 char *build_id_path = NULL;
1610 char *pos;
1611
1612 if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
1613 !dso__is_kcore(dso))
1614 return SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX;
1615
1616 build_id_filename = dso__build_id_filename(dso, NULL, 0, false);
1617 if (build_id_filename) {
1618 __symbol__join_symfs(filename, filename_size, build_id_filename);
1619 free(build_id_filename);
1620 } else {
1621 if (dso->has_build_id)
1622 return ENOMEM;
1623 goto fallback;
1624 }
1625
1626 build_id_path = strdup(filename);
1627 if (!build_id_path)
1628 return -1;
1629
1630
1631
1632
1633
1634
1635 pos = strrchr(build_id_path, '/');
1636 if (pos && strlen(pos) < SBUILD_ID_SIZE - 2)
1637 dirname(build_id_path);
1638
1639 if (dso__is_kcore(dso) ||
1640 readlink(build_id_path, linkname, sizeof(linkname)) < 0 ||
1641 strstr(linkname, DSO__NAME_KALLSYMS) ||
1642 access(filename, R_OK)) {
1643fallback:
1644
1645
1646
1647
1648
1649 __symbol__join_symfs(filename, filename_size, dso->long_name);
1650 }
1651
1652 free(build_id_path);
1653 return 0;
1654}
1655
1656static int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
1657{
1658 struct annotation_options *opts = args->options;
1659 struct map *map = args->ms.map;
1660 struct dso *dso = map->dso;
1661 char *command;
1662 FILE *file;
1663 char symfs_filename[PATH_MAX];
1664 struct kcore_extract kce;
1665 bool delete_extract = false;
1666 bool decomp = false;
1667 int stdout_fd[2];
1668 int lineno = 0;
1669 int nline;
1670 pid_t pid;
1671 int err = dso__disassemble_filename(dso, symfs_filename, sizeof(symfs_filename));
1672
1673 if (err)
1674 return err;
1675
1676 pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
1677 symfs_filename, sym->name, map->unmap_ip(map, sym->start),
1678 map->unmap_ip(map, sym->end));
1679
1680 pr_debug("annotating [%p] %30s : [%p] %30s\n",
1681 dso, dso->long_name, sym, sym->name);
1682
1683 if (dso__is_kcore(dso)) {
1684 kce.kcore_filename = symfs_filename;
1685 kce.addr = map__rip_2objdump(map, sym->start);
1686 kce.offs = sym->start;
1687 kce.len = sym->end - sym->start;
1688 if (!kcore_extract__create(&kce)) {
1689 delete_extract = true;
1690 strlcpy(symfs_filename, kce.extract_filename,
1691 sizeof(symfs_filename));
1692 }
1693 } else if (dso__needs_decompress(dso)) {
1694 char tmp[KMOD_DECOMP_LEN];
1695
1696 if (dso__decompress_kmodule_path(dso, symfs_filename,
1697 tmp, sizeof(tmp)) < 0)
1698 goto out;
1699
1700 decomp = true;
1701 strcpy(symfs_filename, tmp);
1702 }
1703
1704 err = asprintf(&command,
1705 "%s %s%s --start-address=0x%016" PRIx64
1706 " --stop-address=0x%016" PRIx64
1707 " -l -d %s %s -C \"%s\" 2>/dev/null|grep -v \"%s:\"|expand",
1708 opts->objdump_path ?: "objdump",
1709 opts->disassembler_style ? "-M " : "",
1710 opts->disassembler_style ?: "",
1711 map__rip_2objdump(map, sym->start),
1712 map__rip_2objdump(map, sym->end),
1713 opts->show_asm_raw ? "" : "--no-show-raw",
1714 opts->annotate_src ? "-S" : "",
1715 symfs_filename, symfs_filename);
1716
1717 if (err < 0) {
1718 pr_err("Failure allocating memory for the command to run\n");
1719 goto out_remove_tmp;
1720 }
1721
1722 pr_debug("Executing: %s\n", command);
1723
1724 err = -1;
1725 if (pipe(stdout_fd) < 0) {
1726 pr_err("Failure creating the pipe to run %s\n", command);
1727 goto out_free_command;
1728 }
1729
1730 pid = fork();
1731 if (pid < 0) {
1732 pr_err("Failure forking to run %s\n", command);
1733 goto out_close_stdout;
1734 }
1735
1736 if (pid == 0) {
1737 close(stdout_fd[0]);
1738 dup2(stdout_fd[1], 1);
1739 close(stdout_fd[1]);
1740 execl("/bin/sh", "sh", "-c", command, NULL);
1741 perror(command);
1742 exit(-1);
1743 }
1744
1745 close(stdout_fd[1]);
1746
1747 file = fdopen(stdout_fd[0], "r");
1748 if (!file) {
1749 pr_err("Failure creating FILE stream for %s\n", command);
1750
1751
1752
1753
1754 goto out_free_command;
1755 }
1756
1757 nline = 0;
1758 while (!feof(file)) {
1759
1760
1761
1762
1763
1764
1765 if (symbol__parse_objdump_line(sym, file, args, &lineno) < 0)
1766 break;
1767 nline++;
1768 }
1769
1770 if (nline == 0)
1771 pr_err("No output from %s\n", command);
1772
1773
1774
1775
1776
1777 if (dso__is_kcore(dso))
1778 delete_last_nop(sym);
1779
1780 fclose(file);
1781 err = 0;
1782out_free_command:
1783 free(command);
1784out_remove_tmp:
1785 close(stdout_fd[0]);
1786
1787 if (decomp)
1788 unlink(symfs_filename);
1789
1790 if (delete_extract)
1791 kcore_extract__delete(&kce);
1792out:
1793 return err;
1794
1795out_close_stdout:
1796 close(stdout_fd[1]);
1797 goto out_free_command;
1798}
1799
1800static void calc_percent(struct sym_hist *sym_hist,
1801 struct hists *hists,
1802 struct annotation_data *data,
1803 s64 offset, s64 end)
1804{
1805 unsigned int hits = 0;
1806 u64 period = 0;
1807
1808 while (offset < end) {
1809 hits += sym_hist->addr[offset].nr_samples;
1810 period += sym_hist->addr[offset].period;
1811 ++offset;
1812 }
1813
1814 if (sym_hist->nr_samples) {
1815 data->he.period = period;
1816 data->he.nr_samples = hits;
1817 data->percent[PERCENT_HITS_LOCAL] = 100.0 * hits / sym_hist->nr_samples;
1818 }
1819
1820 if (hists->stats.nr_non_filtered_samples)
1821 data->percent[PERCENT_HITS_GLOBAL] = 100.0 * hits / hists->stats.nr_non_filtered_samples;
1822
1823 if (sym_hist->period)
1824 data->percent[PERCENT_PERIOD_LOCAL] = 100.0 * period / sym_hist->period;
1825
1826 if (hists->stats.total_period)
1827 data->percent[PERCENT_PERIOD_GLOBAL] = 100.0 * period / hists->stats.total_period;
1828}
1829
1830static void annotation__calc_percent(struct annotation *notes,
1831 struct perf_evsel *leader, s64 len)
1832{
1833 struct annotation_line *al, *next;
1834 struct perf_evsel *evsel;
1835
1836 list_for_each_entry(al, ¬es->src->source, node) {
1837 s64 end;
1838 int i = 0;
1839
1840 if (al->offset == -1)
1841 continue;
1842
1843 next = annotation_line__next(al, ¬es->src->source);
1844 end = next ? next->offset : len;
1845
1846 for_each_group_evsel(evsel, leader) {
1847 struct hists *hists = evsel__hists(evsel);
1848 struct annotation_data *data;
1849 struct sym_hist *sym_hist;
1850
1851 BUG_ON(i >= al->data_nr);
1852
1853 sym_hist = annotation__histogram(notes, evsel->idx);
1854 data = &al->data[i++];
1855
1856 calc_percent(sym_hist, hists, data, al->offset, end);
1857 }
1858 }
1859}
1860
1861void symbol__calc_percent(struct symbol *sym, struct perf_evsel *evsel)
1862{
1863 struct annotation *notes = symbol__annotation(sym);
1864
1865 annotation__calc_percent(notes, evsel, symbol__size(sym));
1866}
1867
1868int symbol__annotate(struct symbol *sym, struct map *map,
1869 struct perf_evsel *evsel, size_t privsize,
1870 struct annotation_options *options,
1871 struct arch **parch)
1872{
1873 struct annotate_args args = {
1874 .privsize = privsize,
1875 .evsel = evsel,
1876 .options = options,
1877 };
1878 struct perf_env *env = perf_evsel__env(evsel);
1879 const char *arch_name = perf_env__arch(env);
1880 struct arch *arch;
1881 int err;
1882
1883 if (!arch_name)
1884 return -1;
1885
1886 args.arch = arch = arch__find(arch_name);
1887 if (arch == NULL)
1888 return -ENOTSUP;
1889
1890 if (parch)
1891 *parch = arch;
1892
1893 if (arch->init) {
1894 err = arch->init(arch, env ? env->cpuid : NULL);
1895 if (err) {
1896 pr_err("%s: failed to initialize %s arch priv area\n", __func__, arch->name);
1897 return err;
1898 }
1899 }
1900
1901 args.ms.map = map;
1902 args.ms.sym = sym;
1903
1904 return symbol__disassemble(sym, &args);
1905}
1906
1907static void insert_source_line(struct rb_root *root, struct annotation_line *al,
1908 struct annotation_options *opts)
1909{
1910 struct annotation_line *iter;
1911 struct rb_node **p = &root->rb_node;
1912 struct rb_node *parent = NULL;
1913 int i, ret;
1914
1915 while (*p != NULL) {
1916 parent = *p;
1917 iter = rb_entry(parent, struct annotation_line, rb_node);
1918
1919 ret = strcmp(iter->path, al->path);
1920 if (ret == 0) {
1921 for (i = 0; i < al->data_nr; i++) {
1922 iter->data[i].percent_sum += annotation_data__percent(&al->data[i],
1923 opts->percent_type);
1924 }
1925 return;
1926 }
1927
1928 if (ret < 0)
1929 p = &(*p)->rb_left;
1930 else
1931 p = &(*p)->rb_right;
1932 }
1933
1934 for (i = 0; i < al->data_nr; i++) {
1935 al->data[i].percent_sum = annotation_data__percent(&al->data[i],
1936 opts->percent_type);
1937 }
1938
1939 rb_link_node(&al->rb_node, parent, p);
1940 rb_insert_color(&al->rb_node, root);
1941}
1942
1943static int cmp_source_line(struct annotation_line *a, struct annotation_line *b)
1944{
1945 int i;
1946
1947 for (i = 0; i < a->data_nr; i++) {
1948 if (a->data[i].percent_sum == b->data[i].percent_sum)
1949 continue;
1950 return a->data[i].percent_sum > b->data[i].percent_sum;
1951 }
1952
1953 return 0;
1954}
1955
1956static void __resort_source_line(struct rb_root *root, struct annotation_line *al)
1957{
1958 struct annotation_line *iter;
1959 struct rb_node **p = &root->rb_node;
1960 struct rb_node *parent = NULL;
1961
1962 while (*p != NULL) {
1963 parent = *p;
1964 iter = rb_entry(parent, struct annotation_line, rb_node);
1965
1966 if (cmp_source_line(al, iter))
1967 p = &(*p)->rb_left;
1968 else
1969 p = &(*p)->rb_right;
1970 }
1971
1972 rb_link_node(&al->rb_node, parent, p);
1973 rb_insert_color(&al->rb_node, root);
1974}
1975
1976static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
1977{
1978 struct annotation_line *al;
1979 struct rb_node *node;
1980
1981 node = rb_first(src_root);
1982 while (node) {
1983 struct rb_node *next;
1984
1985 al = rb_entry(node, struct annotation_line, rb_node);
1986 next = rb_next(node);
1987 rb_erase(node, src_root);
1988
1989 __resort_source_line(dest_root, al);
1990 node = next;
1991 }
1992}
1993
1994static void print_summary(struct rb_root *root, const char *filename)
1995{
1996 struct annotation_line *al;
1997 struct rb_node *node;
1998
1999 printf("\nSorted summary for file %s\n", filename);
2000 printf("----------------------------------------------\n\n");
2001
2002 if (RB_EMPTY_ROOT(root)) {
2003 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
2004 return;
2005 }
2006
2007 node = rb_first(root);
2008 while (node) {
2009 double percent, percent_max = 0.0;
2010 const char *color;
2011 char *path;
2012 int i;
2013
2014 al = rb_entry(node, struct annotation_line, rb_node);
2015 for (i = 0; i < al->data_nr; i++) {
2016 percent = al->data[i].percent_sum;
2017 color = get_percent_color(percent);
2018 color_fprintf(stdout, color, " %7.2f", percent);
2019
2020 if (percent > percent_max)
2021 percent_max = percent;
2022 }
2023
2024 path = al->path;
2025 color = get_percent_color(percent_max);
2026 color_fprintf(stdout, color, " %s\n", path);
2027
2028 node = rb_next(node);
2029 }
2030}
2031
2032static void symbol__annotate_hits(struct symbol *sym, struct perf_evsel *evsel)
2033{
2034 struct annotation *notes = symbol__annotation(sym);
2035 struct sym_hist *h = annotation__histogram(notes, evsel->idx);
2036 u64 len = symbol__size(sym), offset;
2037
2038 for (offset = 0; offset < len; ++offset)
2039 if (h->addr[offset].nr_samples != 0)
2040 printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
2041 sym->start + offset, h->addr[offset].nr_samples);
2042 printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->nr_samples", h->nr_samples);
2043}
2044
2045static int annotated_source__addr_fmt_width(struct list_head *lines, u64 start)
2046{
2047 char bf[32];
2048 struct annotation_line *line;
2049
2050 list_for_each_entry_reverse(line, lines, node) {
2051 if (line->offset != -1)
2052 return scnprintf(bf, sizeof(bf), "%" PRIx64, start + line->offset);
2053 }
2054
2055 return 0;
2056}
2057
2058int symbol__annotate_printf(struct symbol *sym, struct map *map,
2059 struct perf_evsel *evsel,
2060 struct annotation_options *opts)
2061{
2062 struct dso *dso = map->dso;
2063 char *filename;
2064 const char *d_filename;
2065 const char *evsel_name = perf_evsel__name(evsel);
2066 struct annotation *notes = symbol__annotation(sym);
2067 struct sym_hist *h = annotation__histogram(notes, evsel->idx);
2068 struct annotation_line *pos, *queue = NULL;
2069 u64 start = map__rip_2objdump(map, sym->start);
2070 int printed = 2, queue_len = 0, addr_fmt_width;
2071 int more = 0;
2072 bool context = opts->context;
2073 u64 len;
2074 int width = symbol_conf.show_total_period ? 12 : 8;
2075 int graph_dotted_len;
2076 char buf[512];
2077
2078 filename = strdup(dso->long_name);
2079 if (!filename)
2080 return -ENOMEM;
2081
2082 if (opts->full_path)
2083 d_filename = filename;
2084 else
2085 d_filename = basename(filename);
2086
2087 len = symbol__size(sym);
2088
2089 if (perf_evsel__is_group_event(evsel)) {
2090 width *= evsel->nr_members;
2091 perf_evsel__group_desc(evsel, buf, sizeof(buf));
2092 evsel_name = buf;
2093 }
2094
2095 graph_dotted_len = printf(" %-*.*s| Source code & Disassembly of %s for %s (%" PRIu64 " samples, "
2096 "percent: %s)\n",
2097 width, width, symbol_conf.show_total_period ? "Period" :
2098 symbol_conf.show_nr_samples ? "Samples" : "Percent",
2099 d_filename, evsel_name, h->nr_samples,
2100 percent_type_str(opts->percent_type));
2101
2102 printf("%-*.*s----\n",
2103 graph_dotted_len, graph_dotted_len, graph_dotted_line);
2104
2105 if (verbose > 0)
2106 symbol__annotate_hits(sym, evsel);
2107
2108 addr_fmt_width = annotated_source__addr_fmt_width(¬es->src->source, start);
2109
2110 list_for_each_entry(pos, ¬es->src->source, node) {
2111 int err;
2112
2113 if (context && queue == NULL) {
2114 queue = pos;
2115 queue_len = 0;
2116 }
2117
2118 err = annotation_line__print(pos, sym, start, evsel, len,
2119 opts->min_pcnt, printed, opts->max_lines,
2120 queue, addr_fmt_width, opts->percent_type);
2121
2122 switch (err) {
2123 case 0:
2124 ++printed;
2125 if (context) {
2126 printed += queue_len;
2127 queue = NULL;
2128 queue_len = 0;
2129 }
2130 break;
2131 case 1:
2132
2133 ++more;
2134 break;
2135 case -1:
2136 default:
2137
2138
2139
2140
2141 if (!context)
2142 break;
2143 if (queue_len == context)
2144 queue = list_entry(queue->node.next, typeof(*queue), node);
2145 else
2146 ++queue_len;
2147 break;
2148 }
2149 }
2150
2151 free(filename);
2152
2153 return more;
2154}
2155
2156static void FILE__set_percent_color(void *fp __maybe_unused,
2157 double percent __maybe_unused,
2158 bool current __maybe_unused)
2159{
2160}
2161
2162static int FILE__set_jumps_percent_color(void *fp __maybe_unused,
2163 int nr __maybe_unused, bool current __maybe_unused)
2164{
2165 return 0;
2166}
2167
2168static int FILE__set_color(void *fp __maybe_unused, int color __maybe_unused)
2169{
2170 return 0;
2171}
2172
2173static void FILE__printf(void *fp, const char *fmt, ...)
2174{
2175 va_list args;
2176
2177 va_start(args, fmt);
2178 vfprintf(fp, fmt, args);
2179 va_end(args);
2180}
2181
2182static void FILE__write_graph(void *fp, int graph)
2183{
2184 const char *s;
2185 switch (graph) {
2186
2187 case DARROW_CHAR: s = "↓"; break;
2188 case UARROW_CHAR: s = "↑"; break;
2189 case LARROW_CHAR: s = "←"; break;
2190 case RARROW_CHAR: s = "→"; break;
2191 default: s = "?"; break;
2192 }
2193
2194 fputs(s, fp);
2195}
2196
2197static int symbol__annotate_fprintf2(struct symbol *sym, FILE *fp,
2198 struct annotation_options *opts)
2199{
2200 struct annotation *notes = symbol__annotation(sym);
2201 struct annotation_write_ops wops = {
2202 .first_line = true,
2203 .obj = fp,
2204 .set_color = FILE__set_color,
2205 .set_percent_color = FILE__set_percent_color,
2206 .set_jumps_percent_color = FILE__set_jumps_percent_color,
2207 .printf = FILE__printf,
2208 .write_graph = FILE__write_graph,
2209 };
2210 struct annotation_line *al;
2211
2212 list_for_each_entry(al, ¬es->src->source, node) {
2213 if (annotation_line__filter(al, notes))
2214 continue;
2215 annotation_line__write(al, notes, &wops, opts);
2216 fputc('\n', fp);
2217 wops.first_line = false;
2218 }
2219
2220 return 0;
2221}
2222
2223int map_symbol__annotation_dump(struct map_symbol *ms, struct perf_evsel *evsel,
2224 struct annotation_options *opts)
2225{
2226 const char *ev_name = perf_evsel__name(evsel);
2227 char buf[1024];
2228 char *filename;
2229 int err = -1;
2230 FILE *fp;
2231
2232 if (asprintf(&filename, "%s.annotation", ms->sym->name) < 0)
2233 return -1;
2234
2235 fp = fopen(filename, "w");
2236 if (fp == NULL)
2237 goto out_free_filename;
2238
2239 if (perf_evsel__is_group_event(evsel)) {
2240 perf_evsel__group_desc(evsel, buf, sizeof(buf));
2241 ev_name = buf;
2242 }
2243
2244 fprintf(fp, "%s() %s\nEvent: %s\n\n",
2245 ms->sym->name, ms->map->dso->long_name, ev_name);
2246 symbol__annotate_fprintf2(ms->sym, fp, opts);
2247
2248 fclose(fp);
2249 err = 0;
2250out_free_filename:
2251 free(filename);
2252 return err;
2253}
2254
2255void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
2256{
2257 struct annotation *notes = symbol__annotation(sym);
2258 struct sym_hist *h = annotation__histogram(notes, evidx);
2259
2260 memset(h, 0, notes->src->sizeof_sym_hist);
2261}
2262
2263void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
2264{
2265 struct annotation *notes = symbol__annotation(sym);
2266 struct sym_hist *h = annotation__histogram(notes, evidx);
2267 int len = symbol__size(sym), offset;
2268
2269 h->nr_samples = 0;
2270 for (offset = 0; offset < len; ++offset) {
2271 h->addr[offset].nr_samples = h->addr[offset].nr_samples * 7 / 8;
2272 h->nr_samples += h->addr[offset].nr_samples;
2273 }
2274}
2275
2276void annotated_source__purge(struct annotated_source *as)
2277{
2278 struct annotation_line *al, *n;
2279
2280 list_for_each_entry_safe(al, n, &as->source, node) {
2281 list_del(&al->node);
2282 disasm_line__free(disasm_line(al));
2283 }
2284}
2285
2286static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
2287{
2288 size_t printed;
2289
2290 if (dl->al.offset == -1)
2291 return fprintf(fp, "%s\n", dl->al.line);
2292
2293 printed = fprintf(fp, "%#" PRIx64 " %s", dl->al.offset, dl->ins.name);
2294
2295 if (dl->ops.raw[0] != '\0') {
2296 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
2297 dl->ops.raw);
2298 }
2299
2300 return printed + fprintf(fp, "\n");
2301}
2302
2303size_t disasm__fprintf(struct list_head *head, FILE *fp)
2304{
2305 struct disasm_line *pos;
2306 size_t printed = 0;
2307
2308 list_for_each_entry(pos, head, al.node)
2309 printed += disasm_line__fprintf(pos, fp);
2310
2311 return printed;
2312}
2313
2314bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym)
2315{
2316 if (!dl || !dl->ins.ops || !ins__is_jump(&dl->ins) ||
2317 !disasm_line__has_local_offset(dl) || dl->ops.target.offset < 0 ||
2318 dl->ops.target.offset >= (s64)symbol__size(sym))
2319 return false;
2320
2321 return true;
2322}
2323
2324void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym)
2325{
2326 u64 offset, size = symbol__size(sym);
2327
2328
2329 if (strstr(sym->name, "@plt"))
2330 return;
2331
2332 for (offset = 0; offset < size; ++offset) {
2333 struct annotation_line *al = notes->offsets[offset];
2334 struct disasm_line *dl;
2335
2336 dl = disasm_line(al);
2337
2338 if (!disasm_line__is_valid_local_jump(dl, sym))
2339 continue;
2340
2341 al = notes->offsets[dl->ops.target.offset];
2342
2343
2344
2345
2346
2347 if (al == NULL)
2348 continue;
2349
2350 if (++al->jump_sources > notes->max_jump_sources)
2351 notes->max_jump_sources = al->jump_sources;
2352
2353 ++notes->nr_jumps;
2354 }
2355}
2356
2357void annotation__set_offsets(struct annotation *notes, s64 size)
2358{
2359 struct annotation_line *al;
2360
2361 notes->max_line_len = 0;
2362
2363 list_for_each_entry(al, ¬es->src->source, node) {
2364 size_t line_len = strlen(al->line);
2365
2366 if (notes->max_line_len < line_len)
2367 notes->max_line_len = line_len;
2368 al->idx = notes->nr_entries++;
2369 if (al->offset != -1) {
2370 al->idx_asm = notes->nr_asm_entries++;
2371
2372
2373
2374
2375
2376
2377
2378 if (al->offset < size)
2379 notes->offsets[al->offset] = al;
2380 } else
2381 al->idx_asm = -1;
2382 }
2383}
2384
2385static inline int width_jumps(int n)
2386{
2387 if (n >= 100)
2388 return 5;
2389 if (n / 10)
2390 return 2;
2391 return 1;
2392}
2393
2394void annotation__init_column_widths(struct annotation *notes, struct symbol *sym)
2395{
2396 notes->widths.addr = notes->widths.target =
2397 notes->widths.min_addr = hex_width(symbol__size(sym));
2398 notes->widths.max_addr = hex_width(sym->end);
2399 notes->widths.jumps = width_jumps(notes->max_jump_sources);
2400}
2401
2402void annotation__update_column_widths(struct annotation *notes)
2403{
2404 if (notes->options->use_offset)
2405 notes->widths.target = notes->widths.min_addr;
2406 else
2407 notes->widths.target = notes->widths.max_addr;
2408
2409 notes->widths.addr = notes->widths.target;
2410
2411 if (notes->options->show_nr_jumps)
2412 notes->widths.addr += notes->widths.jumps + 1;
2413}
2414
2415static void annotation__calc_lines(struct annotation *notes, struct map *map,
2416 struct rb_root *root,
2417 struct annotation_options *opts)
2418{
2419 struct annotation_line *al;
2420 struct rb_root tmp_root = RB_ROOT;
2421
2422 list_for_each_entry(al, ¬es->src->source, node) {
2423 double percent_max = 0.0;
2424 int i;
2425
2426 for (i = 0; i < al->data_nr; i++) {
2427 double percent;
2428
2429 percent = annotation_data__percent(&al->data[i],
2430 opts->percent_type);
2431
2432 if (percent > percent_max)
2433 percent_max = percent;
2434 }
2435
2436 if (percent_max <= 0.5)
2437 continue;
2438
2439 al->path = get_srcline(map->dso, notes->start + al->offset, NULL,
2440 false, true, notes->start + al->offset);
2441 insert_source_line(&tmp_root, al, opts);
2442 }
2443
2444 resort_source_line(root, &tmp_root);
2445}
2446
2447static void symbol__calc_lines(struct symbol *sym, struct map *map,
2448 struct rb_root *root,
2449 struct annotation_options *opts)
2450{
2451 struct annotation *notes = symbol__annotation(sym);
2452
2453 annotation__calc_lines(notes, map, root, opts);
2454}
2455
2456int symbol__tty_annotate2(struct symbol *sym, struct map *map,
2457 struct perf_evsel *evsel,
2458 struct annotation_options *opts)
2459{
2460 struct dso *dso = map->dso;
2461 struct rb_root source_line = RB_ROOT;
2462 struct hists *hists = evsel__hists(evsel);
2463 char buf[1024];
2464
2465 if (symbol__annotate2(sym, map, evsel, opts, NULL) < 0)
2466 return -1;
2467
2468 if (opts->print_lines) {
2469 srcline_full_filename = opts->full_path;
2470 symbol__calc_lines(sym, map, &source_line, opts);
2471 print_summary(&source_line, dso->long_name);
2472 }
2473
2474 hists__scnprintf_title(hists, buf, sizeof(buf));
2475 fprintf(stdout, "%s, [percent: %s]\n%s() %s\n",
2476 buf, percent_type_str(opts->percent_type), sym->name, dso->long_name);
2477 symbol__annotate_fprintf2(sym, stdout, opts);
2478
2479 annotated_source__purge(symbol__annotation(sym)->src);
2480
2481 return 0;
2482}
2483
2484int symbol__tty_annotate(struct symbol *sym, struct map *map,
2485 struct perf_evsel *evsel,
2486 struct annotation_options *opts)
2487{
2488 struct dso *dso = map->dso;
2489 struct rb_root source_line = RB_ROOT;
2490
2491 if (symbol__annotate(sym, map, evsel, 0, opts, NULL) < 0)
2492 return -1;
2493
2494 symbol__calc_percent(sym, evsel);
2495
2496 if (opts->print_lines) {
2497 srcline_full_filename = opts->full_path;
2498 symbol__calc_lines(sym, map, &source_line, opts);
2499 print_summary(&source_line, dso->long_name);
2500 }
2501
2502 symbol__annotate_printf(sym, map, evsel, opts);
2503
2504 annotated_source__purge(symbol__annotation(sym)->src);
2505
2506 return 0;
2507}
2508
2509bool ui__has_annotation(void)
2510{
2511 return use_browser == 1 && perf_hpp_list.sym;
2512}
2513
2514
2515static double annotation_line__max_percent(struct annotation_line *al,
2516 struct annotation *notes,
2517 unsigned int percent_type)
2518{
2519 double percent_max = 0.0;
2520 int i;
2521
2522 for (i = 0; i < notes->nr_events; i++) {
2523 double percent;
2524
2525 percent = annotation_data__percent(&al->data[i],
2526 percent_type);
2527
2528 if (percent > percent_max)
2529 percent_max = percent;
2530 }
2531
2532 return percent_max;
2533}
2534
2535static void disasm_line__write(struct disasm_line *dl, struct annotation *notes,
2536 void *obj, char *bf, size_t size,
2537 void (*obj__printf)(void *obj, const char *fmt, ...),
2538 void (*obj__write_graph)(void *obj, int graph))
2539{
2540 if (dl->ins.ops && dl->ins.ops->scnprintf) {
2541 if (ins__is_jump(&dl->ins)) {
2542 bool fwd;
2543
2544 if (dl->ops.target.outside)
2545 goto call_like;
2546 fwd = dl->ops.target.offset > dl->al.offset;
2547 obj__write_graph(obj, fwd ? DARROW_CHAR : UARROW_CHAR);
2548 obj__printf(obj, " ");
2549 } else if (ins__is_call(&dl->ins)) {
2550call_like:
2551 obj__write_graph(obj, RARROW_CHAR);
2552 obj__printf(obj, " ");
2553 } else if (ins__is_ret(&dl->ins)) {
2554 obj__write_graph(obj, LARROW_CHAR);
2555 obj__printf(obj, " ");
2556 } else {
2557 obj__printf(obj, " ");
2558 }
2559 } else {
2560 obj__printf(obj, " ");
2561 }
2562
2563 disasm_line__scnprintf(dl, bf, size, !notes->options->use_offset);
2564}
2565
2566static void __annotation_line__write(struct annotation_line *al, struct annotation *notes,
2567 bool first_line, bool current_entry, bool change_color, int width,
2568 void *obj, unsigned int percent_type,
2569 int (*obj__set_color)(void *obj, int color),
2570 void (*obj__set_percent_color)(void *obj, double percent, bool current),
2571 int (*obj__set_jumps_percent_color)(void *obj, int nr, bool current),
2572 void (*obj__printf)(void *obj, const char *fmt, ...),
2573 void (*obj__write_graph)(void *obj, int graph))
2574
2575{
2576 double percent_max = annotation_line__max_percent(al, notes, percent_type);
2577 int pcnt_width = annotation__pcnt_width(notes),
2578 cycles_width = annotation__cycles_width(notes);
2579 bool show_title = false;
2580 char bf[256];
2581 int printed;
2582
2583 if (first_line && (al->offset == -1 || percent_max == 0.0)) {
2584 if (notes->have_cycles) {
2585 if (al->ipc == 0.0 && al->cycles == 0)
2586 show_title = true;
2587 } else
2588 show_title = true;
2589 }
2590
2591 if (al->offset != -1 && percent_max != 0.0) {
2592 int i;
2593
2594 for (i = 0; i < notes->nr_events; i++) {
2595 double percent;
2596
2597 percent = annotation_data__percent(&al->data[i], percent_type);
2598
2599 obj__set_percent_color(obj, percent, current_entry);
2600 if (notes->options->show_total_period) {
2601 obj__printf(obj, "%11" PRIu64 " ", al->data[i].he.period);
2602 } else if (notes->options->show_nr_samples) {
2603 obj__printf(obj, "%6" PRIu64 " ",
2604 al->data[i].he.nr_samples);
2605 } else {
2606 obj__printf(obj, "%6.2f ", percent);
2607 }
2608 }
2609 } else {
2610 obj__set_percent_color(obj, 0, current_entry);
2611
2612 if (!show_title)
2613 obj__printf(obj, "%-*s", pcnt_width, " ");
2614 else {
2615 obj__printf(obj, "%-*s", pcnt_width,
2616 notes->options->show_total_period ? "Period" :
2617 notes->options->show_nr_samples ? "Samples" : "Percent");
2618 }
2619 }
2620
2621 if (notes->have_cycles) {
2622 if (al->ipc)
2623 obj__printf(obj, "%*.2f ", ANNOTATION__IPC_WIDTH - 1, al->ipc);
2624 else if (!show_title)
2625 obj__printf(obj, "%*s", ANNOTATION__IPC_WIDTH, " ");
2626 else
2627 obj__printf(obj, "%*s ", ANNOTATION__IPC_WIDTH - 1, "IPC");
2628
2629 if (!notes->options->show_minmax_cycle) {
2630 if (al->cycles)
2631 obj__printf(obj, "%*" PRIu64 " ",
2632 ANNOTATION__CYCLES_WIDTH - 1, al->cycles);
2633 else if (!show_title)
2634 obj__printf(obj, "%*s",
2635 ANNOTATION__CYCLES_WIDTH, " ");
2636 else
2637 obj__printf(obj, "%*s ",
2638 ANNOTATION__CYCLES_WIDTH - 1,
2639 "Cycle");
2640 } else {
2641 if (al->cycles) {
2642 char str[32];
2643
2644 scnprintf(str, sizeof(str),
2645 "%" PRIu64 "(%" PRIu64 "/%" PRIu64 ")",
2646 al->cycles, al->cycles_min,
2647 al->cycles_max);
2648
2649 obj__printf(obj, "%*s ",
2650 ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
2651 str);
2652 } else if (!show_title)
2653 obj__printf(obj, "%*s",
2654 ANNOTATION__MINMAX_CYCLES_WIDTH,
2655 " ");
2656 else
2657 obj__printf(obj, "%*s ",
2658 ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
2659 "Cycle(min/max)");
2660 }
2661 }
2662
2663 obj__printf(obj, " ");
2664
2665 if (!*al->line)
2666 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width, " ");
2667 else if (al->offset == -1) {
2668 if (al->line_nr && notes->options->show_linenr)
2669 printed = scnprintf(bf, sizeof(bf), "%-*d ", notes->widths.addr + 1, al->line_nr);
2670 else
2671 printed = scnprintf(bf, sizeof(bf), "%-*s ", notes->widths.addr, " ");
2672 obj__printf(obj, bf);
2673 obj__printf(obj, "%-*s", width - printed - pcnt_width - cycles_width + 1, al->line);
2674 } else {
2675 u64 addr = al->offset;
2676 int color = -1;
2677
2678 if (!notes->options->use_offset)
2679 addr += notes->start;
2680
2681 if (!notes->options->use_offset) {
2682 printed = scnprintf(bf, sizeof(bf), "%" PRIx64 ": ", addr);
2683 } else {
2684 if (al->jump_sources &&
2685 notes->options->offset_level >= ANNOTATION__OFFSET_JUMP_TARGETS) {
2686 if (notes->options->show_nr_jumps) {
2687 int prev;
2688 printed = scnprintf(bf, sizeof(bf), "%*d ",
2689 notes->widths.jumps,
2690 al->jump_sources);
2691 prev = obj__set_jumps_percent_color(obj, al->jump_sources,
2692 current_entry);
2693 obj__printf(obj, bf);
2694 obj__set_color(obj, prev);
2695 }
2696print_addr:
2697 printed = scnprintf(bf, sizeof(bf), "%*" PRIx64 ": ",
2698 notes->widths.target, addr);
2699 } else if (ins__is_call(&disasm_line(al)->ins) &&
2700 notes->options->offset_level >= ANNOTATION__OFFSET_CALL) {
2701 goto print_addr;
2702 } else if (notes->options->offset_level == ANNOTATION__MAX_OFFSET_LEVEL) {
2703 goto print_addr;
2704 } else {
2705 printed = scnprintf(bf, sizeof(bf), "%-*s ",
2706 notes->widths.addr, " ");
2707 }
2708 }
2709
2710 if (change_color)
2711 color = obj__set_color(obj, HE_COLORSET_ADDR);
2712 obj__printf(obj, bf);
2713 if (change_color)
2714 obj__set_color(obj, color);
2715
2716 disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf), obj__printf, obj__write_graph);
2717
2718 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width - 3 - printed, bf);
2719 }
2720
2721}
2722
2723void annotation_line__write(struct annotation_line *al, struct annotation *notes,
2724 struct annotation_write_ops *wops,
2725 struct annotation_options *opts)
2726{
2727 __annotation_line__write(al, notes, wops->first_line, wops->current_entry,
2728 wops->change_color, wops->width, wops->obj,
2729 opts->percent_type,
2730 wops->set_color, wops->set_percent_color,
2731 wops->set_jumps_percent_color, wops->printf,
2732 wops->write_graph);
2733}
2734
2735int symbol__annotate2(struct symbol *sym, struct map *map, struct perf_evsel *evsel,
2736 struct annotation_options *options, struct arch **parch)
2737{
2738 struct annotation *notes = symbol__annotation(sym);
2739 size_t size = symbol__size(sym);
2740 int nr_pcnt = 1, err;
2741
2742 notes->offsets = zalloc(size * sizeof(struct annotation_line *));
2743 if (notes->offsets == NULL)
2744 return -1;
2745
2746 if (perf_evsel__is_group_event(evsel))
2747 nr_pcnt = evsel->nr_members;
2748
2749 err = symbol__annotate(sym, map, evsel, 0, options, parch);
2750 if (err)
2751 goto out_free_offsets;
2752
2753 notes->options = options;
2754
2755 symbol__calc_percent(sym, evsel);
2756
2757 notes->start = map__rip_2objdump(map, sym->start);
2758
2759 annotation__set_offsets(notes, size);
2760 annotation__mark_jump_targets(notes, sym);
2761 annotation__compute_ipc(notes, size);
2762 annotation__init_column_widths(notes, sym);
2763 notes->nr_events = nr_pcnt;
2764
2765 annotation__update_column_widths(notes);
2766
2767 return 0;
2768
2769out_free_offsets:
2770 zfree(¬es->offsets);
2771 return -1;
2772}
2773
2774#define ANNOTATION__CFG(n) \
2775 { .name = #n, .value = &annotation__default_options.n, }
2776
2777
2778
2779
2780static struct annotation_config {
2781 const char *name;
2782 void *value;
2783} annotation__configs[] = {
2784 ANNOTATION__CFG(hide_src_code),
2785 ANNOTATION__CFG(jump_arrows),
2786 ANNOTATION__CFG(offset_level),
2787 ANNOTATION__CFG(show_linenr),
2788 ANNOTATION__CFG(show_nr_jumps),
2789 ANNOTATION__CFG(show_nr_samples),
2790 ANNOTATION__CFG(show_total_period),
2791 ANNOTATION__CFG(use_offset),
2792};
2793
2794#undef ANNOTATION__CFG
2795
2796static int annotation_config__cmp(const void *name, const void *cfgp)
2797{
2798 const struct annotation_config *cfg = cfgp;
2799
2800 return strcmp(name, cfg->name);
2801}
2802
2803static int annotation__config(const char *var, const char *value,
2804 void *data __maybe_unused)
2805{
2806 struct annotation_config *cfg;
2807 const char *name;
2808
2809 if (!strstarts(var, "annotate."))
2810 return 0;
2811
2812 name = var + 9;
2813 cfg = bsearch(name, annotation__configs, ARRAY_SIZE(annotation__configs),
2814 sizeof(struct annotation_config), annotation_config__cmp);
2815
2816 if (cfg == NULL)
2817 pr_debug("%s variable unknown, ignoring...", var);
2818 else if (strcmp(var, "annotate.offset_level") == 0) {
2819 perf_config_int(cfg->value, name, value);
2820
2821 if (*(int *)cfg->value > ANNOTATION__MAX_OFFSET_LEVEL)
2822 *(int *)cfg->value = ANNOTATION__MAX_OFFSET_LEVEL;
2823 else if (*(int *)cfg->value < ANNOTATION__MIN_OFFSET_LEVEL)
2824 *(int *)cfg->value = ANNOTATION__MIN_OFFSET_LEVEL;
2825 } else {
2826 *(bool *)cfg->value = perf_config_bool(name, value);
2827 }
2828 return 0;
2829}
2830
2831void annotation_config__init(void)
2832{
2833 perf_config(annotation__config, NULL);
2834
2835 annotation__default_options.show_total_period = symbol_conf.show_total_period;
2836 annotation__default_options.show_nr_samples = symbol_conf.show_nr_samples;
2837}
2838
2839static unsigned int parse_percent_type(char *str1, char *str2)
2840{
2841 unsigned int type = (unsigned int) -1;
2842
2843 if (!strcmp("period", str1)) {
2844 if (!strcmp("local", str2))
2845 type = PERCENT_PERIOD_LOCAL;
2846 else if (!strcmp("global", str2))
2847 type = PERCENT_PERIOD_GLOBAL;
2848 }
2849
2850 if (!strcmp("hits", str1)) {
2851 if (!strcmp("local", str2))
2852 type = PERCENT_HITS_LOCAL;
2853 else if (!strcmp("global", str2))
2854 type = PERCENT_HITS_GLOBAL;
2855 }
2856
2857 return type;
2858}
2859
2860int annotate_parse_percent_type(const struct option *opt, const char *_str,
2861 int unset __maybe_unused)
2862{
2863 struct annotation_options *opts = opt->value;
2864 unsigned int type;
2865 char *str1, *str2;
2866 int err = -1;
2867
2868 str1 = strdup(_str);
2869 if (!str1)
2870 return -ENOMEM;
2871
2872 str2 = strchr(str1, '-');
2873 if (!str2)
2874 goto out;
2875
2876 *str2++ = 0;
2877
2878 type = parse_percent_type(str1, str2);
2879 if (type == (unsigned int) -1)
2880 type = parse_percent_type(str2, str1);
2881 if (type != (unsigned int) -1) {
2882 opts->percent_type = type;
2883 err = 0;
2884 }
2885
2886out:
2887 free(str1);
2888 return err;
2889}
2890