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8
9#include <errno.h>
10#include <inttypes.h>
11#include <libgen.h>
12#include <stdlib.h>
13#include "util.h"
14#include "ui/ui.h"
15#include "sort.h"
16#include "build-id.h"
17#include "color.h"
18#include "config.h"
19#include "dso.h"
20#include "env.h"
21#include "map.h"
22#include "maps.h"
23#include "symbol.h"
24#include "srcline.h"
25#include "units.h"
26#include "debug.h"
27#include "annotate.h"
28#include "evsel.h"
29#include "evlist.h"
30#include "bpf-event.h"
31#include "bpf-utils.h"
32#include "block-range.h"
33#include "string2.h"
34#include "util/event.h"
35#include "arch/common.h"
36#include <regex.h>
37#include <pthread.h>
38#include <linux/bitops.h>
39#include <linux/kernel.h>
40#include <linux/string.h>
41#include <subcmd/parse-options.h>
42#include <subcmd/run-command.h>
43
44
45#include "ui/browser.h"
46
47
48
49
50
51#define LARROW_CHAR ((unsigned char)',')
52#define RARROW_CHAR ((unsigned char)'+')
53#define DARROW_CHAR ((unsigned char)'.')
54#define UARROW_CHAR ((unsigned char)'-')
55
56#include <linux/ctype.h>
57
58struct annotation_options annotation__default_options = {
59 .use_offset = true,
60 .jump_arrows = true,
61 .annotate_src = true,
62 .offset_level = ANNOTATION__OFFSET_JUMP_TARGETS,
63 .percent_type = PERCENT_PERIOD_LOCAL,
64};
65
66static regex_t file_lineno;
67
68static struct ins_ops *ins__find(struct arch *arch, const char *name);
69static void ins__sort(struct arch *arch);
70static int disasm_line__parse(char *line, const char **namep, char **rawp);
71
72struct arch {
73 const char *name;
74 struct ins *instructions;
75 size_t nr_instructions;
76 size_t nr_instructions_allocated;
77 struct ins_ops *(*associate_instruction_ops)(struct arch *arch, const char *name);
78 bool sorted_instructions;
79 bool initialized;
80 void *priv;
81 unsigned int model;
82 unsigned int family;
83 int (*init)(struct arch *arch, char *cpuid);
84 bool (*ins_is_fused)(struct arch *arch, const char *ins1,
85 const char *ins2);
86 struct {
87 char comment_char;
88 char skip_functions_char;
89 } objdump;
90};
91
92static struct ins_ops call_ops;
93static struct ins_ops dec_ops;
94static struct ins_ops jump_ops;
95static struct ins_ops mov_ops;
96static struct ins_ops nop_ops;
97static struct ins_ops lock_ops;
98static struct ins_ops ret_ops;
99
100static int arch__grow_instructions(struct arch *arch)
101{
102 struct ins *new_instructions;
103 size_t new_nr_allocated;
104
105 if (arch->nr_instructions_allocated == 0 && arch->instructions)
106 goto grow_from_non_allocated_table;
107
108 new_nr_allocated = arch->nr_instructions_allocated + 128;
109 new_instructions = realloc(arch->instructions, new_nr_allocated * sizeof(struct ins));
110 if (new_instructions == NULL)
111 return -1;
112
113out_update_instructions:
114 arch->instructions = new_instructions;
115 arch->nr_instructions_allocated = new_nr_allocated;
116 return 0;
117
118grow_from_non_allocated_table:
119 new_nr_allocated = arch->nr_instructions + 128;
120 new_instructions = calloc(new_nr_allocated, sizeof(struct ins));
121 if (new_instructions == NULL)
122 return -1;
123
124 memcpy(new_instructions, arch->instructions, arch->nr_instructions);
125 goto out_update_instructions;
126}
127
128static int arch__associate_ins_ops(struct arch* arch, const char *name, struct ins_ops *ops)
129{
130 struct ins *ins;
131
132 if (arch->nr_instructions == arch->nr_instructions_allocated &&
133 arch__grow_instructions(arch))
134 return -1;
135
136 ins = &arch->instructions[arch->nr_instructions];
137 ins->name = strdup(name);
138 if (!ins->name)
139 return -1;
140
141 ins->ops = ops;
142 arch->nr_instructions++;
143
144 ins__sort(arch);
145 return 0;
146}
147
148#include "arch/arc/annotate/instructions.c"
149#include "arch/arm/annotate/instructions.c"
150#include "arch/arm64/annotate/instructions.c"
151#include "arch/csky/annotate/instructions.c"
152#include "arch/mips/annotate/instructions.c"
153#include "arch/x86/annotate/instructions.c"
154#include "arch/powerpc/annotate/instructions.c"
155#include "arch/riscv64/annotate/instructions.c"
156#include "arch/s390/annotate/instructions.c"
157#include "arch/sparc/annotate/instructions.c"
158
159static struct arch architectures[] = {
160 {
161 .name = "arc",
162 .init = arc__annotate_init,
163 },
164 {
165 .name = "arm",
166 .init = arm__annotate_init,
167 },
168 {
169 .name = "arm64",
170 .init = arm64__annotate_init,
171 },
172 {
173 .name = "csky",
174 .init = csky__annotate_init,
175 },
176 {
177 .name = "mips",
178 .init = mips__annotate_init,
179 .objdump = {
180 .comment_char = '#',
181 },
182 },
183 {
184 .name = "x86",
185 .init = x86__annotate_init,
186 .instructions = x86__instructions,
187 .nr_instructions = ARRAY_SIZE(x86__instructions),
188 .objdump = {
189 .comment_char = '#',
190 },
191 },
192 {
193 .name = "powerpc",
194 .init = powerpc__annotate_init,
195 },
196 {
197 .name = "riscv64",
198 .init = riscv64__annotate_init,
199 },
200 {
201 .name = "s390",
202 .init = s390__annotate_init,
203 .objdump = {
204 .comment_char = '#',
205 },
206 },
207 {
208 .name = "sparc",
209 .init = sparc__annotate_init,
210 .objdump = {
211 .comment_char = '#',
212 },
213 },
214};
215
216static void ins__delete(struct ins_operands *ops)
217{
218 if (ops == NULL)
219 return;
220 zfree(&ops->source.raw);
221 zfree(&ops->source.name);
222 zfree(&ops->target.raw);
223 zfree(&ops->target.name);
224}
225
226static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size,
227 struct ins_operands *ops, int max_ins_name)
228{
229 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->raw);
230}
231
232int ins__scnprintf(struct ins *ins, char *bf, size_t size,
233 struct ins_operands *ops, int max_ins_name)
234{
235 if (ins->ops->scnprintf)
236 return ins->ops->scnprintf(ins, bf, size, ops, max_ins_name);
237
238 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
239}
240
241bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2)
242{
243 if (!arch || !arch->ins_is_fused)
244 return false;
245
246 return arch->ins_is_fused(arch, ins1, ins2);
247}
248
249static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
250{
251 char *endptr, *tok, *name;
252 struct map *map = ms->map;
253 struct addr_map_symbol target = {
254 .ms = { .map = map, },
255 };
256
257 ops->target.addr = strtoull(ops->raw, &endptr, 16);
258
259 name = strchr(endptr, '<');
260 if (name == NULL)
261 goto indirect_call;
262
263 name++;
264
265 if (arch->objdump.skip_functions_char &&
266 strchr(name, arch->objdump.skip_functions_char))
267 return -1;
268
269 tok = strchr(name, '>');
270 if (tok == NULL)
271 return -1;
272
273 *tok = '\0';
274 ops->target.name = strdup(name);
275 *tok = '>';
276
277 if (ops->target.name == NULL)
278 return -1;
279find_target:
280 target.addr = map__objdump_2mem(map, ops->target.addr);
281
282 if (maps__find_ams(ms->maps, &target) == 0 &&
283 map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr)
284 ops->target.sym = target.ms.sym;
285
286 return 0;
287
288indirect_call:
289 tok = strchr(endptr, '*');
290 if (tok != NULL) {
291 endptr++;
292
293
294
295 if (strstr(endptr, "(%r") == NULL)
296 ops->target.addr = strtoull(endptr, NULL, 16);
297 }
298 goto find_target;
299}
300
301static int call__scnprintf(struct ins *ins, char *bf, size_t size,
302 struct ins_operands *ops, int max_ins_name)
303{
304 if (ops->target.sym)
305 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name);
306
307 if (ops->target.addr == 0)
308 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
309
310 if (ops->target.name)
311 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.name);
312
313 return scnprintf(bf, size, "%-*s *%" PRIx64, max_ins_name, ins->name, ops->target.addr);
314}
315
316static struct ins_ops call_ops = {
317 .parse = call__parse,
318 .scnprintf = call__scnprintf,
319};
320
321bool ins__is_call(const struct ins *ins)
322{
323 return ins->ops == &call_ops || ins->ops == &s390_call_ops;
324}
325
326
327
328
329
330
331
332
333static inline const char *validate_comma(const char *c, struct ins_operands *ops)
334{
335 if (ops->raw_comment && c > ops->raw_comment)
336 return NULL;
337
338 if (ops->raw_func_start && c > ops->raw_func_start)
339 return NULL;
340
341 return c;
342}
343
344static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
345{
346 struct map *map = ms->map;
347 struct symbol *sym = ms->sym;
348 struct addr_map_symbol target = {
349 .ms = { .map = map, },
350 };
351 const char *c = strchr(ops->raw, ',');
352 u64 start, end;
353
354 ops->raw_comment = strchr(ops->raw, arch->objdump.comment_char);
355 ops->raw_func_start = strchr(ops->raw, '<');
356
357 c = validate_comma(c, ops);
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374 if (c++ != NULL) {
375 ops->target.addr = strtoull(c, NULL, 16);
376 if (!ops->target.addr) {
377 c = strchr(c, ',');
378 c = validate_comma(c, ops);
379 if (c++ != NULL)
380 ops->target.addr = strtoull(c, NULL, 16);
381 }
382 } else {
383 ops->target.addr = strtoull(ops->raw, NULL, 16);
384 }
385
386 target.addr = map__objdump_2mem(map, ops->target.addr);
387 start = map->unmap_ip(map, sym->start),
388 end = map->unmap_ip(map, sym->end);
389
390 ops->target.outside = target.addr < start || target.addr > end;
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410 if (maps__find_ams(ms->maps, &target) == 0 &&
411 map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr)
412 ops->target.sym = target.ms.sym;
413
414 if (!ops->target.outside) {
415 ops->target.offset = target.addr - start;
416 ops->target.offset_avail = true;
417 } else {
418 ops->target.offset_avail = false;
419 }
420
421 return 0;
422}
423
424static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
425 struct ins_operands *ops, int max_ins_name)
426{
427 const char *c;
428
429 if (!ops->target.addr || ops->target.offset < 0)
430 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
431
432 if (ops->target.outside && ops->target.sym != NULL)
433 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name);
434
435 c = strchr(ops->raw, ',');
436 c = validate_comma(c, ops);
437
438 if (c != NULL) {
439 const char *c2 = strchr(c + 1, ',');
440
441 c2 = validate_comma(c2, ops);
442
443 if (c2 != NULL)
444 c = c2;
445 c++;
446
447
448 if (*c == ' ')
449 c++;
450 }
451
452 return scnprintf(bf, size, "%-*s %.*s%" PRIx64, max_ins_name,
453 ins->name, c ? c - ops->raw : 0, ops->raw,
454 ops->target.offset);
455}
456
457static struct ins_ops jump_ops = {
458 .parse = jump__parse,
459 .scnprintf = jump__scnprintf,
460};
461
462bool ins__is_jump(const struct ins *ins)
463{
464 return ins->ops == &jump_ops;
465}
466
467static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep)
468{
469 char *endptr, *name, *t;
470
471 if (strstr(raw, "(%rip)") == NULL)
472 return 0;
473
474 *addrp = strtoull(comment, &endptr, 16);
475 if (endptr == comment)
476 return 0;
477 name = strchr(endptr, '<');
478 if (name == NULL)
479 return -1;
480
481 name++;
482
483 t = strchr(name, '>');
484 if (t == NULL)
485 return 0;
486
487 *t = '\0';
488 *namep = strdup(name);
489 *t = '>';
490
491 return 0;
492}
493
494static int lock__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
495{
496 ops->locked.ops = zalloc(sizeof(*ops->locked.ops));
497 if (ops->locked.ops == NULL)
498 return 0;
499
500 if (disasm_line__parse(ops->raw, &ops->locked.ins.name, &ops->locked.ops->raw) < 0)
501 goto out_free_ops;
502
503 ops->locked.ins.ops = ins__find(arch, ops->locked.ins.name);
504
505 if (ops->locked.ins.ops == NULL)
506 goto out_free_ops;
507
508 if (ops->locked.ins.ops->parse &&
509 ops->locked.ins.ops->parse(arch, ops->locked.ops, ms) < 0)
510 goto out_free_ops;
511
512 return 0;
513
514out_free_ops:
515 zfree(&ops->locked.ops);
516 return 0;
517}
518
519static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
520 struct ins_operands *ops, int max_ins_name)
521{
522 int printed;
523
524 if (ops->locked.ins.ops == NULL)
525 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
526
527 printed = scnprintf(bf, size, "%-*s ", max_ins_name, ins->name);
528 return printed + ins__scnprintf(&ops->locked.ins, bf + printed,
529 size - printed, ops->locked.ops, max_ins_name);
530}
531
532static void lock__delete(struct ins_operands *ops)
533{
534 struct ins *ins = &ops->locked.ins;
535
536 if (ins->ops && ins->ops->free)
537 ins->ops->free(ops->locked.ops);
538 else
539 ins__delete(ops->locked.ops);
540
541 zfree(&ops->locked.ops);
542 zfree(&ops->target.raw);
543 zfree(&ops->target.name);
544}
545
546static struct ins_ops lock_ops = {
547 .free = lock__delete,
548 .parse = lock__parse,
549 .scnprintf = lock__scnprintf,
550};
551
552static int mov__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)
553{
554 char *s = strchr(ops->raw, ','), *target, *comment, prev;
555
556 if (s == NULL)
557 return -1;
558
559 *s = '\0';
560 ops->source.raw = strdup(ops->raw);
561 *s = ',';
562
563 if (ops->source.raw == NULL)
564 return -1;
565
566 target = ++s;
567 comment = strchr(s, arch->objdump.comment_char);
568
569 if (comment != NULL)
570 s = comment - 1;
571 else
572 s = strchr(s, '\0') - 1;
573
574 while (s > target && isspace(s[0]))
575 --s;
576 s++;
577 prev = *s;
578 *s = '\0';
579
580 ops->target.raw = strdup(target);
581 *s = prev;
582
583 if (ops->target.raw == NULL)
584 goto out_free_source;
585
586 if (comment == NULL)
587 return 0;
588
589 comment = skip_spaces(comment);
590 comment__symbol(ops->source.raw, comment + 1, &ops->source.addr, &ops->source.name);
591 comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name);
592
593 return 0;
594
595out_free_source:
596 zfree(&ops->source.raw);
597 return -1;
598}
599
600static int mov__scnprintf(struct ins *ins, char *bf, size_t size,
601 struct ins_operands *ops, int max_ins_name)
602{
603 return scnprintf(bf, size, "%-*s %s,%s", max_ins_name, ins->name,
604 ops->source.name ?: ops->source.raw,
605 ops->target.name ?: ops->target.raw);
606}
607
608static struct ins_ops mov_ops = {
609 .parse = mov__parse,
610 .scnprintf = mov__scnprintf,
611};
612
613static int dec__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)
614{
615 char *target, *comment, *s, prev;
616
617 target = s = ops->raw;
618
619 while (s[0] != '\0' && !isspace(s[0]))
620 ++s;
621 prev = *s;
622 *s = '\0';
623
624 ops->target.raw = strdup(target);
625 *s = prev;
626
627 if (ops->target.raw == NULL)
628 return -1;
629
630 comment = strchr(s, arch->objdump.comment_char);
631 if (comment == NULL)
632 return 0;
633
634 comment = skip_spaces(comment);
635 comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name);
636
637 return 0;
638}
639
640static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
641 struct ins_operands *ops, int max_ins_name)
642{
643 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name,
644 ops->target.name ?: ops->target.raw);
645}
646
647static struct ins_ops dec_ops = {
648 .parse = dec__parse,
649 .scnprintf = dec__scnprintf,
650};
651
652static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size,
653 struct ins_operands *ops __maybe_unused, int max_ins_name)
654{
655 return scnprintf(bf, size, "%-*s", max_ins_name, "nop");
656}
657
658static struct ins_ops nop_ops = {
659 .scnprintf = nop__scnprintf,
660};
661
662static struct ins_ops ret_ops = {
663 .scnprintf = ins__raw_scnprintf,
664};
665
666bool ins__is_ret(const struct ins *ins)
667{
668 return ins->ops == &ret_ops;
669}
670
671bool ins__is_lock(const struct ins *ins)
672{
673 return ins->ops == &lock_ops;
674}
675
676static int ins__key_cmp(const void *name, const void *insp)
677{
678 const struct ins *ins = insp;
679
680 return strcmp(name, ins->name);
681}
682
683static int ins__cmp(const void *a, const void *b)
684{
685 const struct ins *ia = a;
686 const struct ins *ib = b;
687
688 return strcmp(ia->name, ib->name);
689}
690
691static void ins__sort(struct arch *arch)
692{
693 const int nmemb = arch->nr_instructions;
694
695 qsort(arch->instructions, nmemb, sizeof(struct ins), ins__cmp);
696}
697
698static struct ins_ops *__ins__find(struct arch *arch, const char *name)
699{
700 struct ins *ins;
701 const int nmemb = arch->nr_instructions;
702
703 if (!arch->sorted_instructions) {
704 ins__sort(arch);
705 arch->sorted_instructions = true;
706 }
707
708 ins = bsearch(name, arch->instructions, nmemb, sizeof(struct ins), ins__key_cmp);
709 return ins ? ins->ops : NULL;
710}
711
712static struct ins_ops *ins__find(struct arch *arch, const char *name)
713{
714 struct ins_ops *ops = __ins__find(arch, name);
715
716 if (!ops && arch->associate_instruction_ops)
717 ops = arch->associate_instruction_ops(arch, name);
718
719 return ops;
720}
721
722static int arch__key_cmp(const void *name, const void *archp)
723{
724 const struct arch *arch = archp;
725
726 return strcmp(name, arch->name);
727}
728
729static int arch__cmp(const void *a, const void *b)
730{
731 const struct arch *aa = a;
732 const struct arch *ab = b;
733
734 return strcmp(aa->name, ab->name);
735}
736
737static void arch__sort(void)
738{
739 const int nmemb = ARRAY_SIZE(architectures);
740
741 qsort(architectures, nmemb, sizeof(struct arch), arch__cmp);
742}
743
744static struct arch *arch__find(const char *name)
745{
746 const int nmemb = ARRAY_SIZE(architectures);
747 static bool sorted;
748
749 if (!sorted) {
750 arch__sort();
751 sorted = true;
752 }
753
754 return bsearch(name, architectures, nmemb, sizeof(struct arch), arch__key_cmp);
755}
756
757static struct annotated_source *annotated_source__new(void)
758{
759 struct annotated_source *src = zalloc(sizeof(*src));
760
761 if (src != NULL)
762 INIT_LIST_HEAD(&src->source);
763
764 return src;
765}
766
767static __maybe_unused void annotated_source__delete(struct annotated_source *src)
768{
769 if (src == NULL)
770 return;
771 zfree(&src->histograms);
772 zfree(&src->cycles_hist);
773 free(src);
774}
775
776static int annotated_source__alloc_histograms(struct annotated_source *src,
777 size_t size, int nr_hists)
778{
779 size_t sizeof_sym_hist;
780
781
782
783
784
785
786
787
788 if (size == 0)
789 size = 1;
790
791
792 if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(struct sym_hist_entry))
793 return -1;
794
795 sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(struct sym_hist_entry));
796
797
798 if (sizeof_sym_hist > SIZE_MAX / nr_hists)
799 return -1;
800
801 src->sizeof_sym_hist = sizeof_sym_hist;
802 src->nr_histograms = nr_hists;
803 src->histograms = calloc(nr_hists, sizeof_sym_hist) ;
804 return src->histograms ? 0 : -1;
805}
806
807
808static int symbol__alloc_hist_cycles(struct symbol *sym)
809{
810 struct annotation *notes = symbol__annotation(sym);
811 const size_t size = symbol__size(sym);
812
813 notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist));
814 if (notes->src->cycles_hist == NULL)
815 return -1;
816 return 0;
817}
818
819void symbol__annotate_zero_histograms(struct symbol *sym)
820{
821 struct annotation *notes = symbol__annotation(sym);
822
823 pthread_mutex_lock(¬es->lock);
824 if (notes->src != NULL) {
825 memset(notes->src->histograms, 0,
826 notes->src->nr_histograms * notes->src->sizeof_sym_hist);
827 if (notes->src->cycles_hist)
828 memset(notes->src->cycles_hist, 0,
829 symbol__size(sym) * sizeof(struct cyc_hist));
830 }
831 pthread_mutex_unlock(¬es->lock);
832}
833
834static int __symbol__account_cycles(struct cyc_hist *ch,
835 u64 start,
836 unsigned offset, unsigned cycles,
837 unsigned have_start)
838{
839
840
841
842
843
844
845
846
847 ch[offset].num_aggr++;
848 ch[offset].cycles_aggr += cycles;
849
850 if (cycles > ch[offset].cycles_max)
851 ch[offset].cycles_max = cycles;
852
853 if (ch[offset].cycles_min) {
854 if (cycles && cycles < ch[offset].cycles_min)
855 ch[offset].cycles_min = cycles;
856 } else
857 ch[offset].cycles_min = cycles;
858
859 if (!have_start && ch[offset].have_start)
860 return 0;
861 if (ch[offset].num) {
862 if (have_start && (!ch[offset].have_start ||
863 ch[offset].start > start)) {
864 ch[offset].have_start = 0;
865 ch[offset].cycles = 0;
866 ch[offset].num = 0;
867 if (ch[offset].reset < 0xffff)
868 ch[offset].reset++;
869 } else if (have_start &&
870 ch[offset].start < start)
871 return 0;
872 }
873
874 if (ch[offset].num < NUM_SPARKS)
875 ch[offset].cycles_spark[ch[offset].num] = cycles;
876
877 ch[offset].have_start = have_start;
878 ch[offset].start = start;
879 ch[offset].cycles += cycles;
880 ch[offset].num++;
881 return 0;
882}
883
884static int __symbol__inc_addr_samples(struct map_symbol *ms,
885 struct annotated_source *src, int evidx, u64 addr,
886 struct perf_sample *sample)
887{
888 struct symbol *sym = ms->sym;
889 unsigned offset;
890 struct sym_hist *h;
891
892 pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, ms->map->unmap_ip(ms->map, addr));
893
894 if ((addr < sym->start || addr >= sym->end) &&
895 (addr != sym->end || sym->start != sym->end)) {
896 pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n",
897 __func__, __LINE__, sym->name, sym->start, addr, sym->end);
898 return -ERANGE;
899 }
900
901 offset = addr - sym->start;
902 h = annotated_source__histogram(src, evidx);
903 if (h == NULL) {
904 pr_debug("%s(%d): ENOMEM! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 ", func: %d\n",
905 __func__, __LINE__, sym->name, sym->start, addr, sym->end, sym->type == STT_FUNC);
906 return -ENOMEM;
907 }
908 h->nr_samples++;
909 h->addr[offset].nr_samples++;
910 h->period += sample->period;
911 h->addr[offset].period += sample->period;
912
913 pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64
914 ", evidx=%d] => nr_samples: %" PRIu64 ", period: %" PRIu64 "\n",
915 sym->start, sym->name, addr, addr - sym->start, evidx,
916 h->addr[offset].nr_samples, h->addr[offset].period);
917 return 0;
918}
919
920static struct cyc_hist *symbol__cycles_hist(struct symbol *sym)
921{
922 struct annotation *notes = symbol__annotation(sym);
923
924 if (notes->src == NULL) {
925 notes->src = annotated_source__new();
926 if (notes->src == NULL)
927 return NULL;
928 goto alloc_cycles_hist;
929 }
930
931 if (!notes->src->cycles_hist) {
932alloc_cycles_hist:
933 symbol__alloc_hist_cycles(sym);
934 }
935
936 return notes->src->cycles_hist;
937}
938
939struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists)
940{
941 struct annotation *notes = symbol__annotation(sym);
942
943 if (notes->src == NULL) {
944 notes->src = annotated_source__new();
945 if (notes->src == NULL)
946 return NULL;
947 goto alloc_histograms;
948 }
949
950 if (notes->src->histograms == NULL) {
951alloc_histograms:
952 annotated_source__alloc_histograms(notes->src, symbol__size(sym),
953 nr_hists);
954 }
955
956 return notes->src;
957}
958
959static int symbol__inc_addr_samples(struct map_symbol *ms,
960 struct evsel *evsel, u64 addr,
961 struct perf_sample *sample)
962{
963 struct symbol *sym = ms->sym;
964 struct annotated_source *src;
965
966 if (sym == NULL)
967 return 0;
968 src = symbol__hists(sym, evsel->evlist->core.nr_entries);
969 return src ? __symbol__inc_addr_samples(ms, src, evsel->core.idx, addr, sample) : 0;
970}
971
972static int symbol__account_cycles(u64 addr, u64 start,
973 struct symbol *sym, unsigned cycles)
974{
975 struct cyc_hist *cycles_hist;
976 unsigned offset;
977
978 if (sym == NULL)
979 return 0;
980 cycles_hist = symbol__cycles_hist(sym);
981 if (cycles_hist == NULL)
982 return -ENOMEM;
983 if (addr < sym->start || addr >= sym->end)
984 return -ERANGE;
985
986 if (start) {
987 if (start < sym->start || start >= sym->end)
988 return -ERANGE;
989 if (start >= addr)
990 start = 0;
991 }
992 offset = addr - sym->start;
993 return __symbol__account_cycles(cycles_hist,
994 start ? start - sym->start : 0,
995 offset, cycles,
996 !!start);
997}
998
999int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
1000 struct addr_map_symbol *start,
1001 unsigned cycles)
1002{
1003 u64 saddr = 0;
1004 int err;
1005
1006 if (!cycles)
1007 return 0;
1008
1009
1010
1011
1012
1013
1014
1015
1016 if (start &&
1017 (start->ms.sym == ams->ms.sym ||
1018 (ams->ms.sym &&
1019 start->addr == ams->ms.sym->start + ams->ms.map->start)))
1020 saddr = start->al_addr;
1021 if (saddr == 0)
1022 pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n",
1023 ams->addr,
1024 start ? start->addr : 0,
1025 ams->ms.sym ? ams->ms.sym->start + ams->ms.map->start : 0,
1026 saddr);
1027 err = symbol__account_cycles(ams->al_addr, saddr, ams->ms.sym, cycles);
1028 if (err)
1029 pr_debug2("account_cycles failed %d\n", err);
1030 return err;
1031}
1032
1033static unsigned annotation__count_insn(struct annotation *notes, u64 start, u64 end)
1034{
1035 unsigned n_insn = 0;
1036 u64 offset;
1037
1038 for (offset = start; offset <= end; offset++) {
1039 if (notes->offsets[offset])
1040 n_insn++;
1041 }
1042 return n_insn;
1043}
1044
1045static void annotation__count_and_fill(struct annotation *notes, u64 start, u64 end, struct cyc_hist *ch)
1046{
1047 unsigned n_insn;
1048 unsigned int cover_insn = 0;
1049 u64 offset;
1050
1051 n_insn = annotation__count_insn(notes, start, end);
1052 if (n_insn && ch->num && ch->cycles) {
1053 float ipc = n_insn / ((double)ch->cycles / (double)ch->num);
1054
1055
1056 if (ch->reset >= 0x7fff)
1057 return;
1058
1059 for (offset = start; offset <= end; offset++) {
1060 struct annotation_line *al = notes->offsets[offset];
1061
1062 if (al && al->ipc == 0.0) {
1063 al->ipc = ipc;
1064 cover_insn++;
1065 }
1066 }
1067
1068 if (cover_insn) {
1069 notes->hit_cycles += ch->cycles;
1070 notes->hit_insn += n_insn * ch->num;
1071 notes->cover_insn += cover_insn;
1072 }
1073 }
1074}
1075
1076void annotation__compute_ipc(struct annotation *notes, size_t size)
1077{
1078 s64 offset;
1079
1080 if (!notes->src || !notes->src->cycles_hist)
1081 return;
1082
1083 notes->total_insn = annotation__count_insn(notes, 0, size - 1);
1084 notes->hit_cycles = 0;
1085 notes->hit_insn = 0;
1086 notes->cover_insn = 0;
1087
1088 pthread_mutex_lock(¬es->lock);
1089 for (offset = size - 1; offset >= 0; --offset) {
1090 struct cyc_hist *ch;
1091
1092 ch = ¬es->src->cycles_hist[offset];
1093 if (ch && ch->cycles) {
1094 struct annotation_line *al;
1095
1096 if (ch->have_start)
1097 annotation__count_and_fill(notes, ch->start, offset, ch);
1098 al = notes->offsets[offset];
1099 if (al && ch->num_aggr) {
1100 al->cycles = ch->cycles_aggr / ch->num_aggr;
1101 al->cycles_max = ch->cycles_max;
1102 al->cycles_min = ch->cycles_min;
1103 }
1104 notes->have_cycles = true;
1105 }
1106 }
1107 pthread_mutex_unlock(¬es->lock);
1108}
1109
1110int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
1111 struct evsel *evsel)
1112{
1113 return symbol__inc_addr_samples(&ams->ms, evsel, ams->al_addr, sample);
1114}
1115
1116int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample,
1117 struct evsel *evsel, u64 ip)
1118{
1119 return symbol__inc_addr_samples(&he->ms, evsel, ip, sample);
1120}
1121
1122static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, struct map_symbol *ms)
1123{
1124 dl->ins.ops = ins__find(arch, dl->ins.name);
1125
1126 if (!dl->ins.ops)
1127 return;
1128
1129 if (dl->ins.ops->parse && dl->ins.ops->parse(arch, &dl->ops, ms) < 0)
1130 dl->ins.ops = NULL;
1131}
1132
1133static int disasm_line__parse(char *line, const char **namep, char **rawp)
1134{
1135 char tmp, *name = skip_spaces(line);
1136
1137 if (name[0] == '\0')
1138 return -1;
1139
1140 *rawp = name + 1;
1141
1142 while ((*rawp)[0] != '\0' && !isspace((*rawp)[0]))
1143 ++*rawp;
1144
1145 tmp = (*rawp)[0];
1146 (*rawp)[0] = '\0';
1147 *namep = strdup(name);
1148
1149 if (*namep == NULL)
1150 goto out;
1151
1152 (*rawp)[0] = tmp;
1153 *rawp = strim(*rawp);
1154
1155 return 0;
1156
1157out:
1158 return -1;
1159}
1160
1161struct annotate_args {
1162 struct arch *arch;
1163 struct map_symbol ms;
1164 struct evsel *evsel;
1165 struct annotation_options *options;
1166 s64 offset;
1167 char *line;
1168 int line_nr;
1169 char *fileloc;
1170};
1171
1172static void annotation_line__init(struct annotation_line *al,
1173 struct annotate_args *args,
1174 int nr)
1175{
1176 al->offset = args->offset;
1177 al->line = strdup(args->line);
1178 al->line_nr = args->line_nr;
1179 al->fileloc = args->fileloc;
1180 al->data_nr = nr;
1181}
1182
1183static void annotation_line__exit(struct annotation_line *al)
1184{
1185 free_srcline(al->path);
1186 zfree(&al->line);
1187}
1188
1189static size_t disasm_line_size(int nr)
1190{
1191 struct annotation_line *al;
1192
1193 return (sizeof(struct disasm_line) + (sizeof(al->data[0]) * nr));
1194}
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207static struct disasm_line *disasm_line__new(struct annotate_args *args)
1208{
1209 struct disasm_line *dl = NULL;
1210 int nr = 1;
1211
1212 if (evsel__is_group_event(args->evsel))
1213 nr = args->evsel->core.nr_members;
1214
1215 dl = zalloc(disasm_line_size(nr));
1216 if (!dl)
1217 return NULL;
1218
1219 annotation_line__init(&dl->al, args, nr);
1220 if (dl->al.line == NULL)
1221 goto out_delete;
1222
1223 if (args->offset != -1) {
1224 if (disasm_line__parse(dl->al.line, &dl->ins.name, &dl->ops.raw) < 0)
1225 goto out_free_line;
1226
1227 disasm_line__init_ins(dl, args->arch, &args->ms);
1228 }
1229
1230 return dl;
1231
1232out_free_line:
1233 zfree(&dl->al.line);
1234out_delete:
1235 free(dl);
1236 return NULL;
1237}
1238
1239void disasm_line__free(struct disasm_line *dl)
1240{
1241 if (dl->ins.ops && dl->ins.ops->free)
1242 dl->ins.ops->free(&dl->ops);
1243 else
1244 ins__delete(&dl->ops);
1245 zfree(&dl->ins.name);
1246 annotation_line__exit(&dl->al);
1247 free(dl);
1248}
1249
1250int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw, int max_ins_name)
1251{
1252 if (raw || !dl->ins.ops)
1253 return scnprintf(bf, size, "%-*s %s", max_ins_name, dl->ins.name, dl->ops.raw);
1254
1255 return ins__scnprintf(&dl->ins, bf, size, &dl->ops, max_ins_name);
1256}
1257
1258void annotation__init(struct annotation *notes)
1259{
1260 pthread_mutex_init(¬es->lock, NULL);
1261}
1262
1263void annotation__exit(struct annotation *notes)
1264{
1265 annotated_source__delete(notes->src);
1266 pthread_mutex_destroy(¬es->lock);
1267}
1268
1269static void annotation_line__add(struct annotation_line *al, struct list_head *head)
1270{
1271 list_add_tail(&al->node, head);
1272}
1273
1274struct annotation_line *
1275annotation_line__next(struct annotation_line *pos, struct list_head *head)
1276{
1277 list_for_each_entry_continue(pos, head, node)
1278 if (pos->offset >= 0)
1279 return pos;
1280
1281 return NULL;
1282}
1283
1284static const char *annotate__address_color(struct block_range *br)
1285{
1286 double cov = block_range__coverage(br);
1287
1288 if (cov >= 0) {
1289
1290 if (cov > 0.75)
1291 return PERF_COLOR_RED;
1292
1293
1294 if (cov < 0.01)
1295 return PERF_COLOR_NORMAL;
1296 }
1297
1298 return PERF_COLOR_MAGENTA;
1299}
1300
1301static const char *annotate__asm_color(struct block_range *br)
1302{
1303 double cov = block_range__coverage(br);
1304
1305 if (cov >= 0) {
1306
1307 if (cov < 0.01)
1308 return PERF_COLOR_NORMAL;
1309 }
1310
1311 return PERF_COLOR_BLUE;
1312}
1313
1314static void annotate__branch_printf(struct block_range *br, u64 addr)
1315{
1316 bool emit_comment = true;
1317
1318 if (!br)
1319 return;
1320
1321#if 1
1322 if (br->is_target && br->start == addr) {
1323 struct block_range *branch = br;
1324 double p;
1325
1326
1327
1328
1329 while (!branch->is_branch)
1330 branch = block_range__next(branch);
1331
1332 p = 100 *(double)br->entry / branch->coverage;
1333
1334 if (p > 0.1) {
1335 if (emit_comment) {
1336 emit_comment = false;
1337 printf("\t#");
1338 }
1339
1340
1341
1342
1343
1344 printf(" +%.2f%%", p);
1345 }
1346 }
1347#endif
1348 if (br->is_branch && br->end == addr) {
1349 double p = 100*(double)br->taken / br->coverage;
1350
1351 if (p > 0.1) {
1352 if (emit_comment) {
1353 emit_comment = false;
1354 printf("\t#");
1355 }
1356
1357
1358
1359
1360
1361 printf(" -%.2f%% (p:%.2f%%)", p, 100*(double)br->pred / br->taken);
1362 }
1363 }
1364}
1365
1366static int disasm_line__print(struct disasm_line *dl, u64 start, int addr_fmt_width)
1367{
1368 s64 offset = dl->al.offset;
1369 const u64 addr = start + offset;
1370 struct block_range *br;
1371
1372 br = block_range__find(addr);
1373 color_fprintf(stdout, annotate__address_color(br), " %*" PRIx64 ":", addr_fmt_width, addr);
1374 color_fprintf(stdout, annotate__asm_color(br), "%s", dl->al.line);
1375 annotate__branch_printf(br, addr);
1376 return 0;
1377}
1378
1379static int
1380annotation_line__print(struct annotation_line *al, struct symbol *sym, u64 start,
1381 struct evsel *evsel, u64 len, int min_pcnt, int printed,
1382 int max_lines, struct annotation_line *queue, int addr_fmt_width,
1383 int percent_type)
1384{
1385 struct disasm_line *dl = container_of(al, struct disasm_line, al);
1386 static const char *prev_line;
1387
1388 if (al->offset != -1) {
1389 double max_percent = 0.0;
1390 int i, nr_percent = 1;
1391 const char *color;
1392 struct annotation *notes = symbol__annotation(sym);
1393
1394 for (i = 0; i < al->data_nr; i++) {
1395 double percent;
1396
1397 percent = annotation_data__percent(&al->data[i],
1398 percent_type);
1399
1400 if (percent > max_percent)
1401 max_percent = percent;
1402 }
1403
1404 if (al->data_nr > nr_percent)
1405 nr_percent = al->data_nr;
1406
1407 if (max_percent < min_pcnt)
1408 return -1;
1409
1410 if (max_lines && printed >= max_lines)
1411 return 1;
1412
1413 if (queue != NULL) {
1414 list_for_each_entry_from(queue, ¬es->src->source, node) {
1415 if (queue == al)
1416 break;
1417 annotation_line__print(queue, sym, start, evsel, len,
1418 0, 0, 1, NULL, addr_fmt_width,
1419 percent_type);
1420 }
1421 }
1422
1423 color = get_percent_color(max_percent);
1424
1425 for (i = 0; i < nr_percent; i++) {
1426 struct annotation_data *data = &al->data[i];
1427 double percent;
1428
1429 percent = annotation_data__percent(data, percent_type);
1430 color = get_percent_color(percent);
1431
1432 if (symbol_conf.show_total_period)
1433 color_fprintf(stdout, color, " %11" PRIu64,
1434 data->he.period);
1435 else if (symbol_conf.show_nr_samples)
1436 color_fprintf(stdout, color, " %7" PRIu64,
1437 data->he.nr_samples);
1438 else
1439 color_fprintf(stdout, color, " %7.2f", percent);
1440 }
1441
1442 printf(" : ");
1443
1444 disasm_line__print(dl, start, addr_fmt_width);
1445
1446
1447
1448
1449
1450
1451 if (al->path) {
1452 if (!prev_line || strcmp(prev_line, al->path)) {
1453 color_fprintf(stdout, color, " // %s", al->path);
1454 prev_line = al->path;
1455 }
1456 }
1457
1458 printf("\n");
1459 } else if (max_lines && printed >= max_lines)
1460 return 1;
1461 else {
1462 int width = symbol_conf.show_total_period ? 12 : 8;
1463
1464 if (queue)
1465 return -1;
1466
1467 if (evsel__is_group_event(evsel))
1468 width *= evsel->core.nr_members;
1469
1470 if (!*al->line)
1471 printf(" %*s:\n", width, " ");
1472 else
1473 printf(" %*s: %-*d %s\n", width, " ", addr_fmt_width, al->line_nr, al->line);
1474 }
1475
1476 return 0;
1477}
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499static int symbol__parse_objdump_line(struct symbol *sym,
1500 struct annotate_args *args,
1501 char *parsed_line, int *line_nr, char **fileloc)
1502{
1503 struct map *map = args->ms.map;
1504 struct annotation *notes = symbol__annotation(sym);
1505 struct disasm_line *dl;
1506 char *tmp;
1507 s64 line_ip, offset = -1;
1508 regmatch_t match[2];
1509
1510
1511 if (regexec(&file_lineno, parsed_line, 2, match, 0) == 0) {
1512 *line_nr = atoi(parsed_line + match[1].rm_so);
1513 *fileloc = strdup(parsed_line);
1514 return 0;
1515 }
1516
1517
1518 line_ip = strtoull(parsed_line, &tmp, 16);
1519 if (parsed_line != tmp && tmp[0] == ':' && tmp[1] != '\0') {
1520 u64 start = map__rip_2objdump(map, sym->start),
1521 end = map__rip_2objdump(map, sym->end);
1522
1523 offset = line_ip - start;
1524 if ((u64)line_ip < start || (u64)line_ip >= end)
1525 offset = -1;
1526 else
1527 parsed_line = tmp + 1;
1528 }
1529
1530 args->offset = offset;
1531 args->line = parsed_line;
1532 args->line_nr = *line_nr;
1533 args->fileloc = *fileloc;
1534 args->ms.sym = sym;
1535
1536 dl = disasm_line__new(args);
1537 (*line_nr)++;
1538
1539 if (dl == NULL)
1540 return -1;
1541
1542 if (!disasm_line__has_local_offset(dl)) {
1543 dl->ops.target.offset = dl->ops.target.addr -
1544 map__rip_2objdump(map, sym->start);
1545 dl->ops.target.offset_avail = true;
1546 }
1547
1548
1549 if (dl->ins.ops && ins__is_call(&dl->ins) && !dl->ops.target.sym) {
1550 struct addr_map_symbol target = {
1551 .addr = dl->ops.target.addr,
1552 .ms = { .map = map, },
1553 };
1554
1555 if (!maps__find_ams(args->ms.maps, &target) &&
1556 target.ms.sym->start == target.al_addr)
1557 dl->ops.target.sym = target.ms.sym;
1558 }
1559
1560 annotation_line__add(&dl->al, ¬es->src->source);
1561
1562 return 0;
1563}
1564
1565static __attribute__((constructor)) void symbol__init_regexpr(void)
1566{
1567 regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED);
1568}
1569
1570static void delete_last_nop(struct symbol *sym)
1571{
1572 struct annotation *notes = symbol__annotation(sym);
1573 struct list_head *list = ¬es->src->source;
1574 struct disasm_line *dl;
1575
1576 while (!list_empty(list)) {
1577 dl = list_entry(list->prev, struct disasm_line, al.node);
1578
1579 if (dl->ins.ops) {
1580 if (dl->ins.ops != &nop_ops)
1581 return;
1582 } else {
1583 if (!strstr(dl->al.line, " nop ") &&
1584 !strstr(dl->al.line, " nopl ") &&
1585 !strstr(dl->al.line, " nopw "))
1586 return;
1587 }
1588
1589 list_del_init(&dl->al.node);
1590 disasm_line__free(dl);
1591 }
1592}
1593
1594int symbol__strerror_disassemble(struct map_symbol *ms, int errnum, char *buf, size_t buflen)
1595{
1596 struct dso *dso = ms->map->dso;
1597
1598 BUG_ON(buflen == 0);
1599
1600 if (errnum >= 0) {
1601 str_error_r(errnum, buf, buflen);
1602 return 0;
1603 }
1604
1605 switch (errnum) {
1606 case SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX: {
1607 char bf[SBUILD_ID_SIZE + 15] = " with build id ";
1608 char *build_id_msg = NULL;
1609
1610 if (dso->has_build_id) {
1611 build_id__sprintf(&dso->bid, bf + 15);
1612 build_id_msg = bf;
1613 }
1614 scnprintf(buf, buflen,
1615 "No vmlinux file%s\nwas found in the path.\n\n"
1616 "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n"
1617 "Please use:\n\n"
1618 " perf buildid-cache -vu vmlinux\n\n"
1619 "or:\n\n"
1620 " --vmlinux vmlinux\n", build_id_msg ?: "");
1621 }
1622 break;
1623 case SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF:
1624 scnprintf(buf, buflen, "Please link with binutils's libopcode to enable BPF annotation");
1625 break;
1626 case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_REGEXP:
1627 scnprintf(buf, buflen, "Problems with arch specific instruction name regular expressions.");
1628 break;
1629 case SYMBOL_ANNOTATE_ERRNO__ARCH_INIT_CPUID_PARSING:
1630 scnprintf(buf, buflen, "Problems while parsing the CPUID in the arch specific initialization.");
1631 break;
1632 case SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE:
1633 scnprintf(buf, buflen, "Invalid BPF file: %s.", dso->long_name);
1634 break;
1635 case SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF:
1636 scnprintf(buf, buflen, "The %s BPF file has no BTF section, compile with -g or use pahole -J.",
1637 dso->long_name);
1638 break;
1639 default:
1640 scnprintf(buf, buflen, "Internal error: Invalid %d error code\n", errnum);
1641 break;
1642 }
1643
1644 return 0;
1645}
1646
1647static int dso__disassemble_filename(struct dso *dso, char *filename, size_t filename_size)
1648{
1649 char linkname[PATH_MAX];
1650 char *build_id_filename;
1651 char *build_id_path = NULL;
1652 char *pos;
1653 int len;
1654
1655 if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
1656 !dso__is_kcore(dso))
1657 return SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX;
1658
1659 build_id_filename = dso__build_id_filename(dso, NULL, 0, false);
1660 if (build_id_filename) {
1661 __symbol__join_symfs(filename, filename_size, build_id_filename);
1662 free(build_id_filename);
1663 } else {
1664 if (dso->has_build_id)
1665 return ENOMEM;
1666 goto fallback;
1667 }
1668
1669 build_id_path = strdup(filename);
1670 if (!build_id_path)
1671 return ENOMEM;
1672
1673
1674
1675
1676
1677
1678 pos = strrchr(build_id_path, '/');
1679 if (pos && strlen(pos) < SBUILD_ID_SIZE - 2)
1680 dirname(build_id_path);
1681
1682 if (dso__is_kcore(dso))
1683 goto fallback;
1684
1685 len = readlink(build_id_path, linkname, sizeof(linkname) - 1);
1686 if (len < 0)
1687 goto fallback;
1688
1689 linkname[len] = '\0';
1690 if (strstr(linkname, DSO__NAME_KALLSYMS) ||
1691 access(filename, R_OK)) {
1692fallback:
1693
1694
1695
1696
1697
1698 __symbol__join_symfs(filename, filename_size, dso->long_name);
1699 }
1700
1701 free(build_id_path);
1702 return 0;
1703}
1704
1705#if defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
1706#define PACKAGE "perf"
1707#include <bfd.h>
1708#include <dis-asm.h>
1709#include <bpf/bpf.h>
1710#include <bpf/btf.h>
1711#include <bpf/libbpf.h>
1712#include <linux/btf.h>
1713
1714static int symbol__disassemble_bpf(struct symbol *sym,
1715 struct annotate_args *args)
1716{
1717 struct annotation *notes = symbol__annotation(sym);
1718 struct annotation_options *opts = args->options;
1719 struct bpf_prog_linfo *prog_linfo = NULL;
1720 struct bpf_prog_info_node *info_node;
1721 int len = sym->end - sym->start;
1722 disassembler_ftype disassemble;
1723 struct map *map = args->ms.map;
1724 struct perf_bpil *info_linear;
1725 struct disassemble_info info;
1726 struct dso *dso = map->dso;
1727 int pc = 0, count, sub_id;
1728 struct btf *btf = NULL;
1729 char tpath[PATH_MAX];
1730 size_t buf_size;
1731 int nr_skip = 0;
1732 char *buf;
1733 bfd *bfdf;
1734 int ret;
1735 FILE *s;
1736
1737 if (dso->binary_type != DSO_BINARY_TYPE__BPF_PROG_INFO)
1738 return SYMBOL_ANNOTATE_ERRNO__BPF_INVALID_FILE;
1739
1740 pr_debug("%s: handling sym %s addr %" PRIx64 " len %" PRIx64 "\n", __func__,
1741 sym->name, sym->start, sym->end - sym->start);
1742
1743 memset(tpath, 0, sizeof(tpath));
1744 perf_exe(tpath, sizeof(tpath));
1745
1746 bfdf = bfd_openr(tpath, NULL);
1747 assert(bfdf);
1748 assert(bfd_check_format(bfdf, bfd_object));
1749
1750 s = open_memstream(&buf, &buf_size);
1751 if (!s) {
1752 ret = errno;
1753 goto out;
1754 }
1755 init_disassemble_info(&info, s,
1756 (fprintf_ftype) fprintf);
1757
1758 info.arch = bfd_get_arch(bfdf);
1759 info.mach = bfd_get_mach(bfdf);
1760
1761 info_node = perf_env__find_bpf_prog_info(dso->bpf_prog.env,
1762 dso->bpf_prog.id);
1763 if (!info_node) {
1764 ret = SYMBOL_ANNOTATE_ERRNO__BPF_MISSING_BTF;
1765 goto out;
1766 }
1767 info_linear = info_node->info_linear;
1768 sub_id = dso->bpf_prog.sub_id;
1769
1770 info.buffer = (void *)(uintptr_t)(info_linear->info.jited_prog_insns);
1771 info.buffer_length = info_linear->info.jited_prog_len;
1772
1773 if (info_linear->info.nr_line_info)
1774 prog_linfo = bpf_prog_linfo__new(&info_linear->info);
1775
1776 if (info_linear->info.btf_id) {
1777 struct btf_node *node;
1778
1779 node = perf_env__find_btf(dso->bpf_prog.env,
1780 info_linear->info.btf_id);
1781 if (node)
1782 btf = btf__new((__u8 *)(node->data),
1783 node->data_size);
1784 }
1785
1786 disassemble_init_for_target(&info);
1787
1788#ifdef DISASM_FOUR_ARGS_SIGNATURE
1789 disassemble = disassembler(info.arch,
1790 bfd_big_endian(bfdf),
1791 info.mach,
1792 bfdf);
1793#else
1794 disassemble = disassembler(bfdf);
1795#endif
1796 assert(disassemble);
1797
1798 fflush(s);
1799 do {
1800 const struct bpf_line_info *linfo = NULL;
1801 struct disasm_line *dl;
1802 size_t prev_buf_size;
1803 const char *srcline;
1804 u64 addr;
1805
1806 addr = pc + ((u64 *)(uintptr_t)(info_linear->info.jited_ksyms))[sub_id];
1807 count = disassemble(pc, &info);
1808
1809 if (prog_linfo)
1810 linfo = bpf_prog_linfo__lfind_addr_func(prog_linfo,
1811 addr, sub_id,
1812 nr_skip);
1813
1814 if (linfo && btf) {
1815 srcline = btf__name_by_offset(btf, linfo->line_off);
1816 nr_skip++;
1817 } else
1818 srcline = NULL;
1819
1820 fprintf(s, "\n");
1821 prev_buf_size = buf_size;
1822 fflush(s);
1823
1824 if (!opts->hide_src_code && srcline) {
1825 args->offset = -1;
1826 args->line = strdup(srcline);
1827 args->line_nr = 0;
1828 args->fileloc = NULL;
1829 args->ms.sym = sym;
1830 dl = disasm_line__new(args);
1831 if (dl) {
1832 annotation_line__add(&dl->al,
1833 ¬es->src->source);
1834 }
1835 }
1836
1837 args->offset = pc;
1838 args->line = buf + prev_buf_size;
1839 args->line_nr = 0;
1840 args->fileloc = NULL;
1841 args->ms.sym = sym;
1842 dl = disasm_line__new(args);
1843 if (dl)
1844 annotation_line__add(&dl->al, ¬es->src->source);
1845
1846 pc += count;
1847 } while (count > 0 && pc < len);
1848
1849 ret = 0;
1850out:
1851 free(prog_linfo);
1852 btf__free(btf);
1853 fclose(s);
1854 bfd_close(bfdf);
1855 return ret;
1856}
1857#else
1858static int symbol__disassemble_bpf(struct symbol *sym __maybe_unused,
1859 struct annotate_args *args __maybe_unused)
1860{
1861 return SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF;
1862}
1863#endif
1864
1865static int
1866symbol__disassemble_bpf_image(struct symbol *sym,
1867 struct annotate_args *args)
1868{
1869 struct annotation *notes = symbol__annotation(sym);
1870 struct disasm_line *dl;
1871
1872 args->offset = -1;
1873 args->line = strdup("to be implemented");
1874 args->line_nr = 0;
1875 args->fileloc = NULL;
1876 dl = disasm_line__new(args);
1877 if (dl)
1878 annotation_line__add(&dl->al, ¬es->src->source);
1879
1880 free(args->line);
1881 return 0;
1882}
1883
1884
1885
1886
1887
1888
1889static char *expand_tabs(char *line, char **storage, size_t *storage_len)
1890{
1891 size_t i, src, dst, len, new_storage_len, num_tabs;
1892 char *new_line;
1893 size_t line_len = strlen(line);
1894
1895 for (num_tabs = 0, i = 0; i < line_len; i++)
1896 if (line[i] == '\t')
1897 num_tabs++;
1898
1899 if (num_tabs == 0)
1900 return line;
1901
1902
1903
1904
1905
1906 new_storage_len = line_len + 1 + (num_tabs * 7);
1907
1908 new_line = malloc(new_storage_len);
1909 if (new_line == NULL) {
1910 pr_err("Failure allocating memory for tab expansion\n");
1911 return NULL;
1912 }
1913
1914
1915
1916
1917
1918
1919 for (i = 0, src = 0, dst = 0; i < line_len && num_tabs; i++) {
1920 if (line[i] == '\t') {
1921 len = i - src;
1922 memcpy(&new_line[dst], &line[src], len);
1923 dst += len;
1924 new_line[dst++] = ' ';
1925 while (dst % 8 != 0)
1926 new_line[dst++] = ' ';
1927 src = i + 1;
1928 num_tabs--;
1929 }
1930 }
1931
1932
1933 len = line_len - src;
1934 memcpy(&new_line[dst], &line[src], len);
1935 dst += len;
1936 new_line[dst] = '\0';
1937
1938 free(*storage);
1939 *storage = new_line;
1940 *storage_len = new_storage_len;
1941 return new_line;
1942
1943}
1944
1945static int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
1946{
1947 struct annotation_options *opts = args->options;
1948 struct map *map = args->ms.map;
1949 struct dso *dso = map->dso;
1950 char *command;
1951 FILE *file;
1952 char symfs_filename[PATH_MAX];
1953 struct kcore_extract kce;
1954 bool delete_extract = false;
1955 bool decomp = false;
1956 int lineno = 0;
1957 char *fileloc = NULL;
1958 int nline;
1959 char *line;
1960 size_t line_len;
1961 const char *objdump_argv[] = {
1962 "/bin/sh",
1963 "-c",
1964 NULL,
1965 "--",
1966 NULL,
1967 NULL,
1968 };
1969 struct child_process objdump_process;
1970 int err = dso__disassemble_filename(dso, symfs_filename, sizeof(symfs_filename));
1971
1972 if (err)
1973 return err;
1974
1975 pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
1976 symfs_filename, sym->name, map->unmap_ip(map, sym->start),
1977 map->unmap_ip(map, sym->end));
1978
1979 pr_debug("annotating [%p] %30s : [%p] %30s\n",
1980 dso, dso->long_name, sym, sym->name);
1981
1982 if (dso->binary_type == DSO_BINARY_TYPE__BPF_PROG_INFO) {
1983 return symbol__disassemble_bpf(sym, args);
1984 } else if (dso->binary_type == DSO_BINARY_TYPE__BPF_IMAGE) {
1985 return symbol__disassemble_bpf_image(sym, args);
1986 } else if (dso__is_kcore(dso)) {
1987 kce.kcore_filename = symfs_filename;
1988 kce.addr = map__rip_2objdump(map, sym->start);
1989 kce.offs = sym->start;
1990 kce.len = sym->end - sym->start;
1991 if (!kcore_extract__create(&kce)) {
1992 delete_extract = true;
1993 strlcpy(symfs_filename, kce.extract_filename,
1994 sizeof(symfs_filename));
1995 }
1996 } else if (dso__needs_decompress(dso)) {
1997 char tmp[KMOD_DECOMP_LEN];
1998
1999 if (dso__decompress_kmodule_path(dso, symfs_filename,
2000 tmp, sizeof(tmp)) < 0)
2001 return -1;
2002
2003 decomp = true;
2004 strcpy(symfs_filename, tmp);
2005 }
2006
2007 err = asprintf(&command,
2008 "%s %s%s --start-address=0x%016" PRIx64
2009 " --stop-address=0x%016" PRIx64
2010 " -l -d %s %s %s %c%s%c %s%s -C \"$1\"",
2011 opts->objdump_path ?: "objdump",
2012 opts->disassembler_style ? "-M " : "",
2013 opts->disassembler_style ?: "",
2014 map__rip_2objdump(map, sym->start),
2015 map__rip_2objdump(map, sym->end),
2016 opts->show_asm_raw ? "" : "--no-show-raw-insn",
2017 opts->annotate_src ? "-S" : "",
2018 opts->prefix ? "--prefix " : "",
2019 opts->prefix ? '"' : ' ',
2020 opts->prefix ?: "",
2021 opts->prefix ? '"' : ' ',
2022 opts->prefix_strip ? "--prefix-strip=" : "",
2023 opts->prefix_strip ?: "");
2024
2025 if (err < 0) {
2026 pr_err("Failure allocating memory for the command to run\n");
2027 goto out_remove_tmp;
2028 }
2029
2030 pr_debug("Executing: %s\n", command);
2031
2032 objdump_argv[2] = command;
2033 objdump_argv[4] = symfs_filename;
2034
2035
2036 memset(&objdump_process, 0, sizeof(objdump_process));
2037 objdump_process.argv = objdump_argv;
2038 objdump_process.out = -1;
2039 if (start_command(&objdump_process)) {
2040 pr_err("Failure starting to run %s\n", command);
2041 err = -1;
2042 goto out_free_command;
2043 }
2044
2045 file = fdopen(objdump_process.out, "r");
2046 if (!file) {
2047 pr_err("Failure creating FILE stream for %s\n", command);
2048
2049
2050
2051
2052 err = -1;
2053 goto out_close_stdout;
2054 }
2055
2056
2057 line = NULL;
2058 line_len = 0;
2059
2060 nline = 0;
2061 while (!feof(file)) {
2062 const char *match;
2063 char *expanded_line;
2064
2065 if (getline(&line, &line_len, file) < 0 || !line)
2066 break;
2067
2068
2069 match = strstr(line, symfs_filename);
2070 if (match && match[strlen(symfs_filename)] == ':')
2071 continue;
2072
2073 expanded_line = strim(line);
2074 expanded_line = expand_tabs(expanded_line, &line, &line_len);
2075 if (!expanded_line)
2076 break;
2077
2078
2079
2080
2081
2082
2083
2084 if (symbol__parse_objdump_line(sym, args, expanded_line,
2085 &lineno, &fileloc) < 0)
2086 break;
2087 nline++;
2088 }
2089 free(line);
2090
2091 err = finish_command(&objdump_process);
2092 if (err)
2093 pr_err("Error running %s\n", command);
2094
2095 if (nline == 0) {
2096 err = -1;
2097 pr_err("No output from %s\n", command);
2098 }
2099
2100
2101
2102
2103
2104 if (dso__is_kcore(dso))
2105 delete_last_nop(sym);
2106
2107 fclose(file);
2108
2109out_close_stdout:
2110 close(objdump_process.out);
2111
2112out_free_command:
2113 free(command);
2114
2115out_remove_tmp:
2116 if (decomp)
2117 unlink(symfs_filename);
2118
2119 if (delete_extract)
2120 kcore_extract__delete(&kce);
2121
2122 return err;
2123}
2124
2125static void calc_percent(struct sym_hist *sym_hist,
2126 struct hists *hists,
2127 struct annotation_data *data,
2128 s64 offset, s64 end)
2129{
2130 unsigned int hits = 0;
2131 u64 period = 0;
2132
2133 while (offset < end) {
2134 hits += sym_hist->addr[offset].nr_samples;
2135 period += sym_hist->addr[offset].period;
2136 ++offset;
2137 }
2138
2139 if (sym_hist->nr_samples) {
2140 data->he.period = period;
2141 data->he.nr_samples = hits;
2142 data->percent[PERCENT_HITS_LOCAL] = 100.0 * hits / sym_hist->nr_samples;
2143 }
2144
2145 if (hists->stats.nr_non_filtered_samples)
2146 data->percent[PERCENT_HITS_GLOBAL] = 100.0 * hits / hists->stats.nr_non_filtered_samples;
2147
2148 if (sym_hist->period)
2149 data->percent[PERCENT_PERIOD_LOCAL] = 100.0 * period / sym_hist->period;
2150
2151 if (hists->stats.total_period)
2152 data->percent[PERCENT_PERIOD_GLOBAL] = 100.0 * period / hists->stats.total_period;
2153}
2154
2155static void annotation__calc_percent(struct annotation *notes,
2156 struct evsel *leader, s64 len)
2157{
2158 struct annotation_line *al, *next;
2159 struct evsel *evsel;
2160
2161 list_for_each_entry(al, ¬es->src->source, node) {
2162 s64 end;
2163 int i = 0;
2164
2165 if (al->offset == -1)
2166 continue;
2167
2168 next = annotation_line__next(al, ¬es->src->source);
2169 end = next ? next->offset : len;
2170
2171 for_each_group_evsel(evsel, leader) {
2172 struct hists *hists = evsel__hists(evsel);
2173 struct annotation_data *data;
2174 struct sym_hist *sym_hist;
2175
2176 BUG_ON(i >= al->data_nr);
2177
2178 sym_hist = annotation__histogram(notes, evsel->core.idx);
2179 data = &al->data[i++];
2180
2181 calc_percent(sym_hist, hists, data, al->offset, end);
2182 }
2183 }
2184}
2185
2186void symbol__calc_percent(struct symbol *sym, struct evsel *evsel)
2187{
2188 struct annotation *notes = symbol__annotation(sym);
2189
2190 annotation__calc_percent(notes, evsel, symbol__size(sym));
2191}
2192
2193int symbol__annotate(struct map_symbol *ms, struct evsel *evsel,
2194 struct annotation_options *options, struct arch **parch)
2195{
2196 struct symbol *sym = ms->sym;
2197 struct annotation *notes = symbol__annotation(sym);
2198 struct annotate_args args = {
2199 .evsel = evsel,
2200 .options = options,
2201 };
2202 struct perf_env *env = evsel__env(evsel);
2203 const char *arch_name = perf_env__arch(env);
2204 struct arch *arch;
2205 int err;
2206
2207 if (!arch_name)
2208 return errno;
2209
2210 args.arch = arch = arch__find(arch_name);
2211 if (arch == NULL) {
2212 pr_err("%s: unsupported arch %s\n", __func__, arch_name);
2213 return ENOTSUP;
2214 }
2215
2216 if (parch)
2217 *parch = arch;
2218
2219 if (arch->init) {
2220 err = arch->init(arch, env ? env->cpuid : NULL);
2221 if (err) {
2222 pr_err("%s: failed to initialize %s arch priv area\n", __func__, arch->name);
2223 return err;
2224 }
2225 }
2226
2227 args.ms = *ms;
2228 notes->start = map__rip_2objdump(ms->map, sym->start);
2229
2230 return symbol__disassemble(sym, &args);
2231}
2232
2233static void insert_source_line(struct rb_root *root, struct annotation_line *al,
2234 struct annotation_options *opts)
2235{
2236 struct annotation_line *iter;
2237 struct rb_node **p = &root->rb_node;
2238 struct rb_node *parent = NULL;
2239 int i, ret;
2240
2241 while (*p != NULL) {
2242 parent = *p;
2243 iter = rb_entry(parent, struct annotation_line, rb_node);
2244
2245 ret = strcmp(iter->path, al->path);
2246 if (ret == 0) {
2247 for (i = 0; i < al->data_nr; i++) {
2248 iter->data[i].percent_sum += annotation_data__percent(&al->data[i],
2249 opts->percent_type);
2250 }
2251 return;
2252 }
2253
2254 if (ret < 0)
2255 p = &(*p)->rb_left;
2256 else
2257 p = &(*p)->rb_right;
2258 }
2259
2260 for (i = 0; i < al->data_nr; i++) {
2261 al->data[i].percent_sum = annotation_data__percent(&al->data[i],
2262 opts->percent_type);
2263 }
2264
2265 rb_link_node(&al->rb_node, parent, p);
2266 rb_insert_color(&al->rb_node, root);
2267}
2268
2269static int cmp_source_line(struct annotation_line *a, struct annotation_line *b)
2270{
2271 int i;
2272
2273 for (i = 0; i < a->data_nr; i++) {
2274 if (a->data[i].percent_sum == b->data[i].percent_sum)
2275 continue;
2276 return a->data[i].percent_sum > b->data[i].percent_sum;
2277 }
2278
2279 return 0;
2280}
2281
2282static void __resort_source_line(struct rb_root *root, struct annotation_line *al)
2283{
2284 struct annotation_line *iter;
2285 struct rb_node **p = &root->rb_node;
2286 struct rb_node *parent = NULL;
2287
2288 while (*p != NULL) {
2289 parent = *p;
2290 iter = rb_entry(parent, struct annotation_line, rb_node);
2291
2292 if (cmp_source_line(al, iter))
2293 p = &(*p)->rb_left;
2294 else
2295 p = &(*p)->rb_right;
2296 }
2297
2298 rb_link_node(&al->rb_node, parent, p);
2299 rb_insert_color(&al->rb_node, root);
2300}
2301
2302static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
2303{
2304 struct annotation_line *al;
2305 struct rb_node *node;
2306
2307 node = rb_first(src_root);
2308 while (node) {
2309 struct rb_node *next;
2310
2311 al = rb_entry(node, struct annotation_line, rb_node);
2312 next = rb_next(node);
2313 rb_erase(node, src_root);
2314
2315 __resort_source_line(dest_root, al);
2316 node = next;
2317 }
2318}
2319
2320static void print_summary(struct rb_root *root, const char *filename)
2321{
2322 struct annotation_line *al;
2323 struct rb_node *node;
2324
2325 printf("\nSorted summary for file %s\n", filename);
2326 printf("----------------------------------------------\n\n");
2327
2328 if (RB_EMPTY_ROOT(root)) {
2329 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
2330 return;
2331 }
2332
2333 node = rb_first(root);
2334 while (node) {
2335 double percent, percent_max = 0.0;
2336 const char *color;
2337 char *path;
2338 int i;
2339
2340 al = rb_entry(node, struct annotation_line, rb_node);
2341 for (i = 0; i < al->data_nr; i++) {
2342 percent = al->data[i].percent_sum;
2343 color = get_percent_color(percent);
2344 color_fprintf(stdout, color, " %7.2f", percent);
2345
2346 if (percent > percent_max)
2347 percent_max = percent;
2348 }
2349
2350 path = al->path;
2351 color = get_percent_color(percent_max);
2352 color_fprintf(stdout, color, " %s\n", path);
2353
2354 node = rb_next(node);
2355 }
2356}
2357
2358static void symbol__annotate_hits(struct symbol *sym, struct evsel *evsel)
2359{
2360 struct annotation *notes = symbol__annotation(sym);
2361 struct sym_hist *h = annotation__histogram(notes, evsel->core.idx);
2362 u64 len = symbol__size(sym), offset;
2363
2364 for (offset = 0; offset < len; ++offset)
2365 if (h->addr[offset].nr_samples != 0)
2366 printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
2367 sym->start + offset, h->addr[offset].nr_samples);
2368 printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->nr_samples", h->nr_samples);
2369}
2370
2371static int annotated_source__addr_fmt_width(struct list_head *lines, u64 start)
2372{
2373 char bf[32];
2374 struct annotation_line *line;
2375
2376 list_for_each_entry_reverse(line, lines, node) {
2377 if (line->offset != -1)
2378 return scnprintf(bf, sizeof(bf), "%" PRIx64, start + line->offset);
2379 }
2380
2381 return 0;
2382}
2383
2384int symbol__annotate_printf(struct map_symbol *ms, struct evsel *evsel,
2385 struct annotation_options *opts)
2386{
2387 struct map *map = ms->map;
2388 struct symbol *sym = ms->sym;
2389 struct dso *dso = map->dso;
2390 char *filename;
2391 const char *d_filename;
2392 const char *evsel_name = evsel__name(evsel);
2393 struct annotation *notes = symbol__annotation(sym);
2394 struct sym_hist *h = annotation__histogram(notes, evsel->core.idx);
2395 struct annotation_line *pos, *queue = NULL;
2396 u64 start = map__rip_2objdump(map, sym->start);
2397 int printed = 2, queue_len = 0, addr_fmt_width;
2398 int more = 0;
2399 bool context = opts->context;
2400 u64 len;
2401 int width = symbol_conf.show_total_period ? 12 : 8;
2402 int graph_dotted_len;
2403 char buf[512];
2404
2405 filename = strdup(dso->long_name);
2406 if (!filename)
2407 return -ENOMEM;
2408
2409 if (opts->full_path)
2410 d_filename = filename;
2411 else
2412 d_filename = basename(filename);
2413
2414 len = symbol__size(sym);
2415
2416 if (evsel__is_group_event(evsel)) {
2417 width *= evsel->core.nr_members;
2418 evsel__group_desc(evsel, buf, sizeof(buf));
2419 evsel_name = buf;
2420 }
2421
2422 graph_dotted_len = printf(" %-*.*s| Source code & Disassembly of %s for %s (%" PRIu64 " samples, "
2423 "percent: %s)\n",
2424 width, width, symbol_conf.show_total_period ? "Period" :
2425 symbol_conf.show_nr_samples ? "Samples" : "Percent",
2426 d_filename, evsel_name, h->nr_samples,
2427 percent_type_str(opts->percent_type));
2428
2429 printf("%-*.*s----\n",
2430 graph_dotted_len, graph_dotted_len, graph_dotted_line);
2431
2432 if (verbose > 0)
2433 symbol__annotate_hits(sym, evsel);
2434
2435 addr_fmt_width = annotated_source__addr_fmt_width(¬es->src->source, start);
2436
2437 list_for_each_entry(pos, ¬es->src->source, node) {
2438 int err;
2439
2440 if (context && queue == NULL) {
2441 queue = pos;
2442 queue_len = 0;
2443 }
2444
2445 err = annotation_line__print(pos, sym, start, evsel, len,
2446 opts->min_pcnt, printed, opts->max_lines,
2447 queue, addr_fmt_width, opts->percent_type);
2448
2449 switch (err) {
2450 case 0:
2451 ++printed;
2452 if (context) {
2453 printed += queue_len;
2454 queue = NULL;
2455 queue_len = 0;
2456 }
2457 break;
2458 case 1:
2459
2460 ++more;
2461 break;
2462 case -1:
2463 default:
2464
2465
2466
2467
2468 if (!context)
2469 break;
2470 if (queue_len == context)
2471 queue = list_entry(queue->node.next, typeof(*queue), node);
2472 else
2473 ++queue_len;
2474 break;
2475 }
2476 }
2477
2478 free(filename);
2479
2480 return more;
2481}
2482
2483static void FILE__set_percent_color(void *fp __maybe_unused,
2484 double percent __maybe_unused,
2485 bool current __maybe_unused)
2486{
2487}
2488
2489static int FILE__set_jumps_percent_color(void *fp __maybe_unused,
2490 int nr __maybe_unused, bool current __maybe_unused)
2491{
2492 return 0;
2493}
2494
2495static int FILE__set_color(void *fp __maybe_unused, int color __maybe_unused)
2496{
2497 return 0;
2498}
2499
2500static void FILE__printf(void *fp, const char *fmt, ...)
2501{
2502 va_list args;
2503
2504 va_start(args, fmt);
2505 vfprintf(fp, fmt, args);
2506 va_end(args);
2507}
2508
2509static void FILE__write_graph(void *fp, int graph)
2510{
2511 const char *s;
2512 switch (graph) {
2513
2514 case DARROW_CHAR: s = "↓"; break;
2515 case UARROW_CHAR: s = "↑"; break;
2516 case LARROW_CHAR: s = "←"; break;
2517 case RARROW_CHAR: s = "→"; break;
2518 default: s = "?"; break;
2519 }
2520
2521 fputs(s, fp);
2522}
2523
2524static int symbol__annotate_fprintf2(struct symbol *sym, FILE *fp,
2525 struct annotation_options *opts)
2526{
2527 struct annotation *notes = symbol__annotation(sym);
2528 struct annotation_write_ops wops = {
2529 .first_line = true,
2530 .obj = fp,
2531 .set_color = FILE__set_color,
2532 .set_percent_color = FILE__set_percent_color,
2533 .set_jumps_percent_color = FILE__set_jumps_percent_color,
2534 .printf = FILE__printf,
2535 .write_graph = FILE__write_graph,
2536 };
2537 struct annotation_line *al;
2538
2539 list_for_each_entry(al, ¬es->src->source, node) {
2540 if (annotation_line__filter(al, notes))
2541 continue;
2542 annotation_line__write(al, notes, &wops, opts);
2543 fputc('\n', fp);
2544 wops.first_line = false;
2545 }
2546
2547 return 0;
2548}
2549
2550int map_symbol__annotation_dump(struct map_symbol *ms, struct evsel *evsel,
2551 struct annotation_options *opts)
2552{
2553 const char *ev_name = evsel__name(evsel);
2554 char buf[1024];
2555 char *filename;
2556 int err = -1;
2557 FILE *fp;
2558
2559 if (asprintf(&filename, "%s.annotation", ms->sym->name) < 0)
2560 return -1;
2561
2562 fp = fopen(filename, "w");
2563 if (fp == NULL)
2564 goto out_free_filename;
2565
2566 if (evsel__is_group_event(evsel)) {
2567 evsel__group_desc(evsel, buf, sizeof(buf));
2568 ev_name = buf;
2569 }
2570
2571 fprintf(fp, "%s() %s\nEvent: %s\n\n",
2572 ms->sym->name, ms->map->dso->long_name, ev_name);
2573 symbol__annotate_fprintf2(ms->sym, fp, opts);
2574
2575 fclose(fp);
2576 err = 0;
2577out_free_filename:
2578 free(filename);
2579 return err;
2580}
2581
2582void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
2583{
2584 struct annotation *notes = symbol__annotation(sym);
2585 struct sym_hist *h = annotation__histogram(notes, evidx);
2586
2587 memset(h, 0, notes->src->sizeof_sym_hist);
2588}
2589
2590void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
2591{
2592 struct annotation *notes = symbol__annotation(sym);
2593 struct sym_hist *h = annotation__histogram(notes, evidx);
2594 int len = symbol__size(sym), offset;
2595
2596 h->nr_samples = 0;
2597 for (offset = 0; offset < len; ++offset) {
2598 h->addr[offset].nr_samples = h->addr[offset].nr_samples * 7 / 8;
2599 h->nr_samples += h->addr[offset].nr_samples;
2600 }
2601}
2602
2603void annotated_source__purge(struct annotated_source *as)
2604{
2605 struct annotation_line *al, *n;
2606
2607 list_for_each_entry_safe(al, n, &as->source, node) {
2608 list_del_init(&al->node);
2609 disasm_line__free(disasm_line(al));
2610 }
2611}
2612
2613static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
2614{
2615 size_t printed;
2616
2617 if (dl->al.offset == -1)
2618 return fprintf(fp, "%s\n", dl->al.line);
2619
2620 printed = fprintf(fp, "%#" PRIx64 " %s", dl->al.offset, dl->ins.name);
2621
2622 if (dl->ops.raw[0] != '\0') {
2623 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
2624 dl->ops.raw);
2625 }
2626
2627 return printed + fprintf(fp, "\n");
2628}
2629
2630size_t disasm__fprintf(struct list_head *head, FILE *fp)
2631{
2632 struct disasm_line *pos;
2633 size_t printed = 0;
2634
2635 list_for_each_entry(pos, head, al.node)
2636 printed += disasm_line__fprintf(pos, fp);
2637
2638 return printed;
2639}
2640
2641bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym)
2642{
2643 if (!dl || !dl->ins.ops || !ins__is_jump(&dl->ins) ||
2644 !disasm_line__has_local_offset(dl) || dl->ops.target.offset < 0 ||
2645 dl->ops.target.offset >= (s64)symbol__size(sym))
2646 return false;
2647
2648 return true;
2649}
2650
2651void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym)
2652{
2653 u64 offset, size = symbol__size(sym);
2654
2655
2656 if (strstr(sym->name, "@plt"))
2657 return;
2658
2659 for (offset = 0; offset < size; ++offset) {
2660 struct annotation_line *al = notes->offsets[offset];
2661 struct disasm_line *dl;
2662
2663 dl = disasm_line(al);
2664
2665 if (!disasm_line__is_valid_local_jump(dl, sym))
2666 continue;
2667
2668 al = notes->offsets[dl->ops.target.offset];
2669
2670
2671
2672
2673
2674 if (al == NULL)
2675 continue;
2676
2677 if (++al->jump_sources > notes->max_jump_sources)
2678 notes->max_jump_sources = al->jump_sources;
2679 }
2680}
2681
2682void annotation__set_offsets(struct annotation *notes, s64 size)
2683{
2684 struct annotation_line *al;
2685
2686 notes->max_line_len = 0;
2687 notes->nr_entries = 0;
2688 notes->nr_asm_entries = 0;
2689
2690 list_for_each_entry(al, ¬es->src->source, node) {
2691 size_t line_len = strlen(al->line);
2692
2693 if (notes->max_line_len < line_len)
2694 notes->max_line_len = line_len;
2695 al->idx = notes->nr_entries++;
2696 if (al->offset != -1) {
2697 al->idx_asm = notes->nr_asm_entries++;
2698
2699
2700
2701
2702
2703
2704
2705 if (al->offset < size)
2706 notes->offsets[al->offset] = al;
2707 } else
2708 al->idx_asm = -1;
2709 }
2710}
2711
2712static inline int width_jumps(int n)
2713{
2714 if (n >= 100)
2715 return 5;
2716 if (n / 10)
2717 return 2;
2718 return 1;
2719}
2720
2721static int annotation__max_ins_name(struct annotation *notes)
2722{
2723 int max_name = 0, len;
2724 struct annotation_line *al;
2725
2726 list_for_each_entry(al, ¬es->src->source, node) {
2727 if (al->offset == -1)
2728 continue;
2729
2730 len = strlen(disasm_line(al)->ins.name);
2731 if (max_name < len)
2732 max_name = len;
2733 }
2734
2735 return max_name;
2736}
2737
2738void annotation__init_column_widths(struct annotation *notes, struct symbol *sym)
2739{
2740 notes->widths.addr = notes->widths.target =
2741 notes->widths.min_addr = hex_width(symbol__size(sym));
2742 notes->widths.max_addr = hex_width(sym->end);
2743 notes->widths.jumps = width_jumps(notes->max_jump_sources);
2744 notes->widths.max_ins_name = annotation__max_ins_name(notes);
2745}
2746
2747void annotation__update_column_widths(struct annotation *notes)
2748{
2749 if (notes->options->use_offset)
2750 notes->widths.target = notes->widths.min_addr;
2751 else
2752 notes->widths.target = notes->widths.max_addr;
2753
2754 notes->widths.addr = notes->widths.target;
2755
2756 if (notes->options->show_nr_jumps)
2757 notes->widths.addr += notes->widths.jumps + 1;
2758}
2759
2760static void annotation__calc_lines(struct annotation *notes, struct map *map,
2761 struct rb_root *root,
2762 struct annotation_options *opts)
2763{
2764 struct annotation_line *al;
2765 struct rb_root tmp_root = RB_ROOT;
2766
2767 list_for_each_entry(al, ¬es->src->source, node) {
2768 double percent_max = 0.0;
2769 int i;
2770
2771 for (i = 0; i < al->data_nr; i++) {
2772 double percent;
2773
2774 percent = annotation_data__percent(&al->data[i],
2775 opts->percent_type);
2776
2777 if (percent > percent_max)
2778 percent_max = percent;
2779 }
2780
2781 if (percent_max <= 0.5)
2782 continue;
2783
2784 al->path = get_srcline(map->dso, notes->start + al->offset, NULL,
2785 false, true, notes->start + al->offset);
2786 insert_source_line(&tmp_root, al, opts);
2787 }
2788
2789 resort_source_line(root, &tmp_root);
2790}
2791
2792static void symbol__calc_lines(struct map_symbol *ms, struct rb_root *root,
2793 struct annotation_options *opts)
2794{
2795 struct annotation *notes = symbol__annotation(ms->sym);
2796
2797 annotation__calc_lines(notes, ms->map, root, opts);
2798}
2799
2800int symbol__tty_annotate2(struct map_symbol *ms, struct evsel *evsel,
2801 struct annotation_options *opts)
2802{
2803 struct dso *dso = ms->map->dso;
2804 struct symbol *sym = ms->sym;
2805 struct rb_root source_line = RB_ROOT;
2806 struct hists *hists = evsel__hists(evsel);
2807 char buf[1024];
2808 int err;
2809
2810 err = symbol__annotate2(ms, evsel, opts, NULL);
2811 if (err) {
2812 char msg[BUFSIZ];
2813
2814 dso->annotate_warned = true;
2815 symbol__strerror_disassemble(ms, err, msg, sizeof(msg));
2816 ui__error("Couldn't annotate %s:\n%s", sym->name, msg);
2817 return -1;
2818 }
2819
2820 if (opts->print_lines) {
2821 srcline_full_filename = opts->full_path;
2822 symbol__calc_lines(ms, &source_line, opts);
2823 print_summary(&source_line, dso->long_name);
2824 }
2825
2826 hists__scnprintf_title(hists, buf, sizeof(buf));
2827 fprintf(stdout, "%s, [percent: %s]\n%s() %s\n",
2828 buf, percent_type_str(opts->percent_type), sym->name, dso->long_name);
2829 symbol__annotate_fprintf2(sym, stdout, opts);
2830
2831 annotated_source__purge(symbol__annotation(sym)->src);
2832
2833 return 0;
2834}
2835
2836int symbol__tty_annotate(struct map_symbol *ms, struct evsel *evsel,
2837 struct annotation_options *opts)
2838{
2839 struct dso *dso = ms->map->dso;
2840 struct symbol *sym = ms->sym;
2841 struct rb_root source_line = RB_ROOT;
2842 int err;
2843
2844 err = symbol__annotate(ms, evsel, opts, NULL);
2845 if (err) {
2846 char msg[BUFSIZ];
2847
2848 dso->annotate_warned = true;
2849 symbol__strerror_disassemble(ms, err, msg, sizeof(msg));
2850 ui__error("Couldn't annotate %s:\n%s", sym->name, msg);
2851 return -1;
2852 }
2853
2854 symbol__calc_percent(sym, evsel);
2855
2856 if (opts->print_lines) {
2857 srcline_full_filename = opts->full_path;
2858 symbol__calc_lines(ms, &source_line, opts);
2859 print_summary(&source_line, dso->long_name);
2860 }
2861
2862 symbol__annotate_printf(ms, evsel, opts);
2863
2864 annotated_source__purge(symbol__annotation(sym)->src);
2865
2866 return 0;
2867}
2868
2869bool ui__has_annotation(void)
2870{
2871 return use_browser == 1 && perf_hpp_list.sym;
2872}
2873
2874
2875static double annotation_line__max_percent(struct annotation_line *al,
2876 struct annotation *notes,
2877 unsigned int percent_type)
2878{
2879 double percent_max = 0.0;
2880 int i;
2881
2882 for (i = 0; i < notes->nr_events; i++) {
2883 double percent;
2884
2885 percent = annotation_data__percent(&al->data[i],
2886 percent_type);
2887
2888 if (percent > percent_max)
2889 percent_max = percent;
2890 }
2891
2892 return percent_max;
2893}
2894
2895static void disasm_line__write(struct disasm_line *dl, struct annotation *notes,
2896 void *obj, char *bf, size_t size,
2897 void (*obj__printf)(void *obj, const char *fmt, ...),
2898 void (*obj__write_graph)(void *obj, int graph))
2899{
2900 if (dl->ins.ops && dl->ins.ops->scnprintf) {
2901 if (ins__is_jump(&dl->ins)) {
2902 bool fwd;
2903
2904 if (dl->ops.target.outside)
2905 goto call_like;
2906 fwd = dl->ops.target.offset > dl->al.offset;
2907 obj__write_graph(obj, fwd ? DARROW_CHAR : UARROW_CHAR);
2908 obj__printf(obj, " ");
2909 } else if (ins__is_call(&dl->ins)) {
2910call_like:
2911 obj__write_graph(obj, RARROW_CHAR);
2912 obj__printf(obj, " ");
2913 } else if (ins__is_ret(&dl->ins)) {
2914 obj__write_graph(obj, LARROW_CHAR);
2915 obj__printf(obj, " ");
2916 } else {
2917 obj__printf(obj, " ");
2918 }
2919 } else {
2920 obj__printf(obj, " ");
2921 }
2922
2923 disasm_line__scnprintf(dl, bf, size, !notes->options->use_offset, notes->widths.max_ins_name);
2924}
2925
2926static void ipc_coverage_string(char *bf, int size, struct annotation *notes)
2927{
2928 double ipc = 0.0, coverage = 0.0;
2929
2930 if (notes->hit_cycles)
2931 ipc = notes->hit_insn / ((double)notes->hit_cycles);
2932
2933 if (notes->total_insn) {
2934 coverage = notes->cover_insn * 100.0 /
2935 ((double)notes->total_insn);
2936 }
2937
2938 scnprintf(bf, size, "(Average IPC: %.2f, IPC Coverage: %.1f%%)",
2939 ipc, coverage);
2940}
2941
2942static void __annotation_line__write(struct annotation_line *al, struct annotation *notes,
2943 bool first_line, bool current_entry, bool change_color, int width,
2944 void *obj, unsigned int percent_type,
2945 int (*obj__set_color)(void *obj, int color),
2946 void (*obj__set_percent_color)(void *obj, double percent, bool current),
2947 int (*obj__set_jumps_percent_color)(void *obj, int nr, bool current),
2948 void (*obj__printf)(void *obj, const char *fmt, ...),
2949 void (*obj__write_graph)(void *obj, int graph))
2950
2951{
2952 double percent_max = annotation_line__max_percent(al, notes, percent_type);
2953 int pcnt_width = annotation__pcnt_width(notes),
2954 cycles_width = annotation__cycles_width(notes);
2955 bool show_title = false;
2956 char bf[256];
2957 int printed;
2958
2959 if (first_line && (al->offset == -1 || percent_max == 0.0)) {
2960 if (notes->have_cycles) {
2961 if (al->ipc == 0.0 && al->cycles == 0)
2962 show_title = true;
2963 } else
2964 show_title = true;
2965 }
2966
2967 if (al->offset != -1 && percent_max != 0.0) {
2968 int i;
2969
2970 for (i = 0; i < notes->nr_events; i++) {
2971 double percent;
2972
2973 percent = annotation_data__percent(&al->data[i], percent_type);
2974
2975 obj__set_percent_color(obj, percent, current_entry);
2976 if (symbol_conf.show_total_period) {
2977 obj__printf(obj, "%11" PRIu64 " ", al->data[i].he.period);
2978 } else if (symbol_conf.show_nr_samples) {
2979 obj__printf(obj, "%6" PRIu64 " ",
2980 al->data[i].he.nr_samples);
2981 } else {
2982 obj__printf(obj, "%6.2f ", percent);
2983 }
2984 }
2985 } else {
2986 obj__set_percent_color(obj, 0, current_entry);
2987
2988 if (!show_title)
2989 obj__printf(obj, "%-*s", pcnt_width, " ");
2990 else {
2991 obj__printf(obj, "%-*s", pcnt_width,
2992 symbol_conf.show_total_period ? "Period" :
2993 symbol_conf.show_nr_samples ? "Samples" : "Percent");
2994 }
2995 }
2996
2997 if (notes->have_cycles) {
2998 if (al->ipc)
2999 obj__printf(obj, "%*.2f ", ANNOTATION__IPC_WIDTH - 1, al->ipc);
3000 else if (!show_title)
3001 obj__printf(obj, "%*s", ANNOTATION__IPC_WIDTH, " ");
3002 else
3003 obj__printf(obj, "%*s ", ANNOTATION__IPC_WIDTH - 1, "IPC");
3004
3005 if (!notes->options->show_minmax_cycle) {
3006 if (al->cycles)
3007 obj__printf(obj, "%*" PRIu64 " ",
3008 ANNOTATION__CYCLES_WIDTH - 1, al->cycles);
3009 else if (!show_title)
3010 obj__printf(obj, "%*s",
3011 ANNOTATION__CYCLES_WIDTH, " ");
3012 else
3013 obj__printf(obj, "%*s ",
3014 ANNOTATION__CYCLES_WIDTH - 1,
3015 "Cycle");
3016 } else {
3017 if (al->cycles) {
3018 char str[32];
3019
3020 scnprintf(str, sizeof(str),
3021 "%" PRIu64 "(%" PRIu64 "/%" PRIu64 ")",
3022 al->cycles, al->cycles_min,
3023 al->cycles_max);
3024
3025 obj__printf(obj, "%*s ",
3026 ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
3027 str);
3028 } else if (!show_title)
3029 obj__printf(obj, "%*s",
3030 ANNOTATION__MINMAX_CYCLES_WIDTH,
3031 " ");
3032 else
3033 obj__printf(obj, "%*s ",
3034 ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
3035 "Cycle(min/max)");
3036 }
3037
3038 if (show_title && !*al->line) {
3039 ipc_coverage_string(bf, sizeof(bf), notes);
3040 obj__printf(obj, "%*s", ANNOTATION__AVG_IPC_WIDTH, bf);
3041 }
3042 }
3043
3044 obj__printf(obj, " ");
3045
3046 if (!*al->line)
3047 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width, " ");
3048 else if (al->offset == -1) {
3049 if (al->line_nr && notes->options->show_linenr)
3050 printed = scnprintf(bf, sizeof(bf), "%-*d ", notes->widths.addr + 1, al->line_nr);
3051 else
3052 printed = scnprintf(bf, sizeof(bf), "%-*s ", notes->widths.addr, " ");
3053 obj__printf(obj, bf);
3054 obj__printf(obj, "%-*s", width - printed - pcnt_width - cycles_width + 1, al->line);
3055 } else {
3056 u64 addr = al->offset;
3057 int color = -1;
3058
3059 if (!notes->options->use_offset)
3060 addr += notes->start;
3061
3062 if (!notes->options->use_offset) {
3063 printed = scnprintf(bf, sizeof(bf), "%" PRIx64 ": ", addr);
3064 } else {
3065 if (al->jump_sources &&
3066 notes->options->offset_level >= ANNOTATION__OFFSET_JUMP_TARGETS) {
3067 if (notes->options->show_nr_jumps) {
3068 int prev;
3069 printed = scnprintf(bf, sizeof(bf), "%*d ",
3070 notes->widths.jumps,
3071 al->jump_sources);
3072 prev = obj__set_jumps_percent_color(obj, al->jump_sources,
3073 current_entry);
3074 obj__printf(obj, bf);
3075 obj__set_color(obj, prev);
3076 }
3077print_addr:
3078 printed = scnprintf(bf, sizeof(bf), "%*" PRIx64 ": ",
3079 notes->widths.target, addr);
3080 } else if (ins__is_call(&disasm_line(al)->ins) &&
3081 notes->options->offset_level >= ANNOTATION__OFFSET_CALL) {
3082 goto print_addr;
3083 } else if (notes->options->offset_level == ANNOTATION__MAX_OFFSET_LEVEL) {
3084 goto print_addr;
3085 } else {
3086 printed = scnprintf(bf, sizeof(bf), "%-*s ",
3087 notes->widths.addr, " ");
3088 }
3089 }
3090
3091 if (change_color)
3092 color = obj__set_color(obj, HE_COLORSET_ADDR);
3093 obj__printf(obj, bf);
3094 if (change_color)
3095 obj__set_color(obj, color);
3096
3097 disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf), obj__printf, obj__write_graph);
3098
3099 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width - 3 - printed, bf);
3100 }
3101
3102}
3103
3104void annotation_line__write(struct annotation_line *al, struct annotation *notes,
3105 struct annotation_write_ops *wops,
3106 struct annotation_options *opts)
3107{
3108 __annotation_line__write(al, notes, wops->first_line, wops->current_entry,
3109 wops->change_color, wops->width, wops->obj,
3110 opts->percent_type,
3111 wops->set_color, wops->set_percent_color,
3112 wops->set_jumps_percent_color, wops->printf,
3113 wops->write_graph);
3114}
3115
3116int symbol__annotate2(struct map_symbol *ms, struct evsel *evsel,
3117 struct annotation_options *options, struct arch **parch)
3118{
3119 struct symbol *sym = ms->sym;
3120 struct annotation *notes = symbol__annotation(sym);
3121 size_t size = symbol__size(sym);
3122 int nr_pcnt = 1, err;
3123
3124 notes->offsets = zalloc(size * sizeof(struct annotation_line *));
3125 if (notes->offsets == NULL)
3126 return ENOMEM;
3127
3128 if (evsel__is_group_event(evsel))
3129 nr_pcnt = evsel->core.nr_members;
3130
3131 err = symbol__annotate(ms, evsel, options, parch);
3132 if (err)
3133 goto out_free_offsets;
3134
3135 notes->options = options;
3136
3137 symbol__calc_percent(sym, evsel);
3138
3139 annotation__set_offsets(notes, size);
3140 annotation__mark_jump_targets(notes, sym);
3141 annotation__compute_ipc(notes, size);
3142 annotation__init_column_widths(notes, sym);
3143 notes->nr_events = nr_pcnt;
3144
3145 annotation__update_column_widths(notes);
3146 sym->annotate2 = 1;
3147
3148 return 0;
3149
3150out_free_offsets:
3151 zfree(¬es->offsets);
3152 return err;
3153}
3154
3155static int annotation__config(const char *var, const char *value, void *data)
3156{
3157 struct annotation_options *opt = data;
3158
3159 if (!strstarts(var, "annotate."))
3160 return 0;
3161
3162 if (!strcmp(var, "annotate.offset_level")) {
3163 perf_config_u8(&opt->offset_level, "offset_level", value);
3164
3165 if (opt->offset_level > ANNOTATION__MAX_OFFSET_LEVEL)
3166 opt->offset_level = ANNOTATION__MAX_OFFSET_LEVEL;
3167 else if (opt->offset_level < ANNOTATION__MIN_OFFSET_LEVEL)
3168 opt->offset_level = ANNOTATION__MIN_OFFSET_LEVEL;
3169 } else if (!strcmp(var, "annotate.hide_src_code")) {
3170 opt->hide_src_code = perf_config_bool("hide_src_code", value);
3171 } else if (!strcmp(var, "annotate.jump_arrows")) {
3172 opt->jump_arrows = perf_config_bool("jump_arrows", value);
3173 } else if (!strcmp(var, "annotate.show_linenr")) {
3174 opt->show_linenr = perf_config_bool("show_linenr", value);
3175 } else if (!strcmp(var, "annotate.show_nr_jumps")) {
3176 opt->show_nr_jumps = perf_config_bool("show_nr_jumps", value);
3177 } else if (!strcmp(var, "annotate.show_nr_samples")) {
3178 symbol_conf.show_nr_samples = perf_config_bool("show_nr_samples",
3179 value);
3180 } else if (!strcmp(var, "annotate.show_total_period")) {
3181 symbol_conf.show_total_period = perf_config_bool("show_total_period",
3182 value);
3183 } else if (!strcmp(var, "annotate.use_offset")) {
3184 opt->use_offset = perf_config_bool("use_offset", value);
3185 } else if (!strcmp(var, "annotate.disassembler_style")) {
3186 opt->disassembler_style = value;
3187 } else if (!strcmp(var, "annotate.demangle")) {
3188 symbol_conf.demangle = perf_config_bool("demangle", value);
3189 } else if (!strcmp(var, "annotate.demangle_kernel")) {
3190 symbol_conf.demangle_kernel = perf_config_bool("demangle_kernel", value);
3191 } else {
3192 pr_debug("%s variable unknown, ignoring...", var);
3193 }
3194
3195 return 0;
3196}
3197
3198void annotation_config__init(struct annotation_options *opt)
3199{
3200 perf_config(annotation__config, opt);
3201}
3202
3203static unsigned int parse_percent_type(char *str1, char *str2)
3204{
3205 unsigned int type = (unsigned int) -1;
3206
3207 if (!strcmp("period", str1)) {
3208 if (!strcmp("local", str2))
3209 type = PERCENT_PERIOD_LOCAL;
3210 else if (!strcmp("global", str2))
3211 type = PERCENT_PERIOD_GLOBAL;
3212 }
3213
3214 if (!strcmp("hits", str1)) {
3215 if (!strcmp("local", str2))
3216 type = PERCENT_HITS_LOCAL;
3217 else if (!strcmp("global", str2))
3218 type = PERCENT_HITS_GLOBAL;
3219 }
3220
3221 return type;
3222}
3223
3224int annotate_parse_percent_type(const struct option *opt, const char *_str,
3225 int unset __maybe_unused)
3226{
3227 struct annotation_options *opts = opt->value;
3228 unsigned int type;
3229 char *str1, *str2;
3230 int err = -1;
3231
3232 str1 = strdup(_str);
3233 if (!str1)
3234 return -ENOMEM;
3235
3236 str2 = strchr(str1, '-');
3237 if (!str2)
3238 goto out;
3239
3240 *str2++ = 0;
3241
3242 type = parse_percent_type(str1, str2);
3243 if (type == (unsigned int) -1)
3244 type = parse_percent_type(str2, str1);
3245 if (type != (unsigned int) -1) {
3246 opts->percent_type = type;
3247 err = 0;
3248 }
3249
3250out:
3251 free(str1);
3252 return err;
3253}
3254
3255int annotate_check_args(struct annotation_options *args)
3256{
3257 if (args->prefix_strip && !args->prefix) {
3258 pr_err("--prefix-strip requires --prefix\n");
3259 return -1;
3260 }
3261 return 0;
3262}
3263