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perf intel-pt: Add lookahead callback
[linux/fpc-iii.git] / tools / perf / util / annotate.c
blob0b8573fd9b05482528c80fd55151cc3e8969f8af
1 /*
2 * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
3 *
4 * Parts came from builtin-annotate.c, see those files for further
5 * copyright notes.
6 *
7 * Released under the GPL v2. (and only v2, not any later version)
8 */
9
10 #include <errno.h>
11 #include <inttypes.h>
12 #include <libgen.h>
13 #include <bpf/bpf.h>
14 #include <bpf/btf.h>
15 #include <bpf/libbpf.h>
16 #include <linux/btf.h>
17 #include "util.h"
18 #include "ui/ui.h"
19 #include "sort.h"
20 #include "build-id.h"
21 #include "color.h"
22 #include "config.h"
23 #include "cache.h"
24 #include "map.h"
25 #include "symbol.h"
26 #include "units.h"
27 #include "debug.h"
28 #include "annotate.h"
29 #include "evsel.h"
30 #include "evlist.h"
31 #include "bpf-event.h"
32 #include "block-range.h"
33 #include "string2.h"
34 #include "arch/common.h"
35 #include <regex.h>
36 #include <pthread.h>
37 #include <linux/bitops.h>
38 #include <linux/kernel.h>
39 #include <bpf/libbpf.h>
40
41 /* FIXME: For the HE_COLORSET */
42 #include "ui/browser.h"
43
44 /*
45 * FIXME: Using the same values as slang.h,
46 * but that header may not be available everywhere
47 */
48 #define LARROW_CHAR ((unsigned char)',')
49 #define RARROW_CHAR ((unsigned char)'+')
50 #define DARROW_CHAR ((unsigned char)'.')
51 #define UARROW_CHAR ((unsigned char)'-')
52
53 #include "sane_ctype.h"
54
55 struct annotation_options annotation__default_options = {
56 .use_offset = true,
57 .jump_arrows = true,
58 .annotate_src = true,
59 .offset_level = ANNOTATION__OFFSET_JUMP_TARGETS,
60 .percent_type = PERCENT_PERIOD_LOCAL,
61 };
62
63 static regex_t file_lineno;
64
65 static struct ins_ops *ins__find(struct arch *arch, const char *name);
66 static void ins__sort(struct arch *arch);
67 static int disasm_line__parse(char *line, const char **namep, char **rawp);
68
69 struct arch {
70 const char *name;
71 struct ins *instructions;
72 size_t nr_instructions;
73 size_t nr_instructions_allocated;
74 struct ins_ops *(*associate_instruction_ops)(struct arch *arch, const char *name);
75 bool sorted_instructions;
76 bool initialized;
77 void *priv;
78 unsigned int model;
79 unsigned int family;
80 int (*init)(struct arch *arch, char *cpuid);
81 bool (*ins_is_fused)(struct arch *arch, const char *ins1,
82 const char *ins2);
83 struct {
84 char comment_char;
85 char skip_functions_char;
86 } objdump;
87 };
88
89 static struct ins_ops call_ops;
90 static struct ins_ops dec_ops;
91 static struct ins_ops jump_ops;
92 static struct ins_ops mov_ops;
93 static struct ins_ops nop_ops;
94 static struct ins_ops lock_ops;
95 static struct ins_ops ret_ops;
96
97 static int arch__grow_instructions(struct arch *arch)
98 {
99 struct ins *new_instructions;
100 size_t new_nr_allocated;
101
102 if (arch->nr_instructions_allocated == 0 && arch->instructions)
103 goto grow_from_non_allocated_table;
104
105 new_nr_allocated = arch->nr_instructions_allocated + 128;
106 new_instructions = realloc(arch->instructions, new_nr_allocated * sizeof(struct ins));
107 if (new_instructions == NULL)
108 return -1;
109
110 out_update_instructions:
111 arch->instructions = new_instructions;
112 arch->nr_instructions_allocated = new_nr_allocated;
113 return 0;
114
115 grow_from_non_allocated_table:
116 new_nr_allocated = arch->nr_instructions + 128;
117 new_instructions = calloc(new_nr_allocated, sizeof(struct ins));
118 if (new_instructions == NULL)
119 return -1;
120
121 memcpy(new_instructions, arch->instructions, arch->nr_instructions);
122 goto out_update_instructions;
123 }
124
125 static int arch__associate_ins_ops(struct arch* arch, const char *name, struct ins_ops *ops)
126 {
127 struct ins *ins;
128
129 if (arch->nr_instructions == arch->nr_instructions_allocated &&
130 arch__grow_instructions(arch))
131 return -1;
132
133 ins = &arch->instructions[arch->nr_instructions];
134 ins->name = strdup(name);
135 if (!ins->name)
136 return -1;
137
138 ins->ops = ops;
139 arch->nr_instructions++;
140
141 ins__sort(arch);
142 return 0;
143 }
144
145 #include "arch/arc/annotate/instructions.c"
146 #include "arch/arm/annotate/instructions.c"
147 #include "arch/arm64/annotate/instructions.c"
148 #include "arch/x86/annotate/instructions.c"
149 #include "arch/powerpc/annotate/instructions.c"
150 #include "arch/s390/annotate/instructions.c"
151 #include "arch/sparc/annotate/instructions.c"
152
153 static struct arch architectures[] = {
154 {
155 .name = "arc",
156 .init = arc__annotate_init,
157 },
158 {
159 .name = "arm",
160 .init = arm__annotate_init,
161 },
162 {
163 .name = "arm64",
164 .init = arm64__annotate_init,
165 },
166 {
167 .name = "x86",
168 .init = x86__annotate_init,
169 .instructions = x86__instructions,
170 .nr_instructions = ARRAY_SIZE(x86__instructions),
171 .ins_is_fused = x86__ins_is_fused,
172 .objdump = {
173 .comment_char = '#',
174 },
175 },
176 {
177 .name = "powerpc",
178 .init = powerpc__annotate_init,
179 },
180 {
181 .name = "s390",
182 .init = s390__annotate_init,
183 .objdump = {
184 .comment_char = '#',
185 },
186 },
187 {
188 .name = "sparc",
189 .init = sparc__annotate_init,
190 .objdump = {
191 .comment_char = '#',
192 },
193 },
194 };
195
196 static void ins__delete(struct ins_operands *ops)
197 {
198 if (ops == NULL)
199 return;
200 zfree(&ops->source.raw);
201 zfree(&ops->source.name);
202 zfree(&ops->target.raw);
203 zfree(&ops->target.name);
204 }
205
206 static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size,
207 struct ins_operands *ops, int max_ins_name)
208 {
209 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->raw);
210 }
211
212 int ins__scnprintf(struct ins *ins, char *bf, size_t size,
213 struct ins_operands *ops, int max_ins_name)
214 {
215 if (ins->ops->scnprintf)
216 return ins->ops->scnprintf(ins, bf, size, ops, max_ins_name);
217
218 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
219 }
220
221 bool ins__is_fused(struct arch *arch, const char *ins1, const char *ins2)
222 {
223 if (!arch || !arch->ins_is_fused)
224 return false;
225
226 return arch->ins_is_fused(arch, ins1, ins2);
227 }
228
229 static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
230 {
231 char *endptr, *tok, *name;
232 struct map *map = ms->map;
233 struct addr_map_symbol target = {
234 .map = map,
235 };
236
237 ops->target.addr = strtoull(ops->raw, &endptr, 16);
238
239 name = strchr(endptr, '<');
240 if (name == NULL)
241 goto indirect_call;
242
243 name++;
244
245 if (arch->objdump.skip_functions_char &&
246 strchr(name, arch->objdump.skip_functions_char))
247 return -1;
248
249 tok = strchr(name, '>');
250 if (tok == NULL)
251 return -1;
252
253 *tok = '\0';
254 ops->target.name = strdup(name);
255 *tok = '>';
256
257 if (ops->target.name == NULL)
258 return -1;
259 find_target:
260 target.addr = map__objdump_2mem(map, ops->target.addr);
261
262 if (map_groups__find_ams(&target) == 0 &&
263 map__rip_2objdump(target.map, map->map_ip(target.map, target.addr)) == ops->target.addr)
264 ops->target.sym = target.sym;
265
266 return 0;
267
268 indirect_call:
269 tok = strchr(endptr, '*');
270 if (tok != NULL) {
271 endptr++;
272
273 /* Indirect call can use a non-rip register and offset: callq *0x8(%rbx).
274 * Do not parse such instruction. */
275 if (strstr(endptr, "(%r") == NULL)
276 ops->target.addr = strtoull(endptr, NULL, 16);
277 }
278 goto find_target;
279 }
280
281 static int call__scnprintf(struct ins *ins, char *bf, size_t size,
282 struct ins_operands *ops, int max_ins_name)
283 {
284 if (ops->target.sym)
285 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name);
286
287 if (ops->target.addr == 0)
288 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
289
290 if (ops->target.name)
291 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.name);
292
293 return scnprintf(bf, size, "%-*s *%" PRIx64, max_ins_name, ins->name, ops->target.addr);
294 }
295
296 static struct ins_ops call_ops = {
297 .parse = call__parse,
298 .scnprintf = call__scnprintf,
299 };
300
301 bool ins__is_call(const struct ins *ins)
302 {
303 return ins->ops == &call_ops || ins->ops == &s390_call_ops;
304 }
305
306 /*
307 * Prevents from matching commas in the comment section, e.g.:
308 * ffff200008446e70: b.cs ffff2000084470f4 <generic_exec_single+0x314> // b.hs, b.nlast
309 */
310 static inline const char *validate_comma(const char *c, struct ins_operands *ops)
311 {
312 if (ops->raw_comment && c > ops->raw_comment)
313 return NULL;
314
315 return c;
316 }
317
318 static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
319 {
320 struct map *map = ms->map;
321 struct symbol *sym = ms->sym;
322 struct addr_map_symbol target = {
323 .map = map,
324 };
325 const char *c = strchr(ops->raw, ',');
326 u64 start, end;
327
328 ops->raw_comment = strchr(ops->raw, arch->objdump.comment_char);
329 c = validate_comma(c, ops);
330
331 /*
332 * Examples of lines to parse for the _cpp_lex_token@@Base
333 * function:
334 *
335 * 1159e6c: jne 115aa32 <_cpp_lex_token@@Base+0xf92>
336 * 1159e8b: jne c469be <cpp_named_operator2name@@Base+0xa72>
337 *
338 * The first is a jump to an offset inside the same function,
339 * the second is to another function, i.e. that 0xa72 is an
340 * offset in the cpp_named_operator2name@@base function.
341 */
342 /*
343 * skip over possible up to 2 operands to get to address, e.g.:
344 * tbnz w0, #26, ffff0000083cd190 <security_file_permission+0xd0>
345 */
346 if (c++ != NULL) {
347 ops->target.addr = strtoull(c, NULL, 16);
348 if (!ops->target.addr) {
349 c = strchr(c, ',');
350 c = validate_comma(c, ops);
351 if (c++ != NULL)
352 ops->target.addr = strtoull(c, NULL, 16);
353 }
354 } else {
355 ops->target.addr = strtoull(ops->raw, NULL, 16);
356 }
357
358 target.addr = map__objdump_2mem(map, ops->target.addr);
359 start = map->unmap_ip(map, sym->start),
360 end = map->unmap_ip(map, sym->end);
361
362 ops->target.outside = target.addr < start || target.addr > end;
363
364 /*
365 * FIXME: things like this in _cpp_lex_token (gcc's cc1 program):
366
367 cpp_named_operator2name@@Base+0xa72
368
369 * Point to a place that is after the cpp_named_operator2name
370 * boundaries, i.e. in the ELF symbol table for cc1
371 * cpp_named_operator2name is marked as being 32-bytes long, but it in
372 * fact is much larger than that, so we seem to need a symbols__find()
373 * routine that looks for >= current->start and < next_symbol->start,
374 * possibly just for C++ objects?
375 *
376 * For now lets just make some progress by marking jumps to outside the
377 * current function as call like.
378 *
379 * Actual navigation will come next, with further understanding of how
380 * the symbol searching and disassembly should be done.
381 */
382 if (map_groups__find_ams(&target) == 0 &&
383 map__rip_2objdump(target.map, map->map_ip(target.map, target.addr)) == ops->target.addr)
384 ops->target.sym = target.sym;
385
386 if (!ops->target.outside) {
387 ops->target.offset = target.addr - start;
388 ops->target.offset_avail = true;
389 } else {
390 ops->target.offset_avail = false;
391 }
392
393 return 0;
394 }
395
396 static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
397 struct ins_operands *ops, int max_ins_name)
398 {
399 const char *c;
400
401 if (!ops->target.addr || ops->target.offset < 0)
402 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
403
404 if (ops->target.outside && ops->target.sym != NULL)
405 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name, ops->target.sym->name);
406
407 c = strchr(ops->raw, ',');
408 c = validate_comma(c, ops);
409
410 if (c != NULL) {
411 const char *c2 = strchr(c + 1, ',');
412
413 c2 = validate_comma(c2, ops);
414 /* check for 3-op insn */
415 if (c2 != NULL)
416 c = c2;
417 c++;
418
419 /* mirror arch objdump's space-after-comma style */
420 if (*c == ' ')
421 c++;
422 }
423
424 return scnprintf(bf, size, "%-*s %.*s%" PRIx64, max_ins_name,
425 ins->name, c ? c - ops->raw : 0, ops->raw,
426 ops->target.offset);
427 }
428
429 static struct ins_ops jump_ops = {
430 .parse = jump__parse,
431 .scnprintf = jump__scnprintf,
432 };
433
434 bool ins__is_jump(const struct ins *ins)
435 {
436 return ins->ops == &jump_ops;
437 }
438
439 static int comment__symbol(char *raw, char *comment, u64 *addrp, char **namep)
440 {
441 char *endptr, *name, *t;
442
443 if (strstr(raw, "(%rip)") == NULL)
444 return 0;
445
446 *addrp = strtoull(comment, &endptr, 16);
447 if (endptr == comment)
448 return 0;
449 name = strchr(endptr, '<');
450 if (name == NULL)
451 return -1;
452
453 name++;
454
455 t = strchr(name, '>');
456 if (t == NULL)
457 return 0;
458
459 *t = '\0';
460 *namep = strdup(name);
461 *t = '>';
462
463 return 0;
464 }
465
466 static int lock__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
467 {
468 ops->locked.ops = zalloc(sizeof(*ops->locked.ops));
469 if (ops->locked.ops == NULL)
470 return 0;
471
472 if (disasm_line__parse(ops->raw, &ops->locked.ins.name, &ops->locked.ops->raw) < 0)
473 goto out_free_ops;
474
475 ops->locked.ins.ops = ins__find(arch, ops->locked.ins.name);
476
477 if (ops->locked.ins.ops == NULL)
478 goto out_free_ops;
479
480 if (ops->locked.ins.ops->parse &&
481 ops->locked.ins.ops->parse(arch, ops->locked.ops, ms) < 0)
482 goto out_free_ops;
483
484 return 0;
485
486 out_free_ops:
487 zfree(&ops->locked.ops);
488 return 0;
489 }
490
491 static int lock__scnprintf(struct ins *ins, char *bf, size_t size,
492 struct ins_operands *ops, int max_ins_name)
493 {
494 int printed;
495
496 if (ops->locked.ins.ops == NULL)
497 return ins__raw_scnprintf(ins, bf, size, ops, max_ins_name);
498
499 printed = scnprintf(bf, size, "%-*s ", max_ins_name, ins->name);
500 return printed + ins__scnprintf(&ops->locked.ins, bf + printed,
501 size - printed, ops->locked.ops, max_ins_name);
502 }
503
504 static void lock__delete(struct ins_operands *ops)
505 {
506 struct ins *ins = &ops->locked.ins;
507
508 if (ins->ops && ins->ops->free)
509 ins->ops->free(ops->locked.ops);
510 else
511 ins__delete(ops->locked.ops);
512
513 zfree(&ops->locked.ops);
514 zfree(&ops->target.raw);
515 zfree(&ops->target.name);
516 }
517
518 static struct ins_ops lock_ops = {
519 .free = lock__delete,
520 .parse = lock__parse,
521 .scnprintf = lock__scnprintf,
522 };
523
524 static int mov__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)
525 {
526 char *s = strchr(ops->raw, ','), *target, *comment, prev;
527
528 if (s == NULL)
529 return -1;
530
531 *s = '\0';
532 ops->source.raw = strdup(ops->raw);
533 *s = ',';
534
535 if (ops->source.raw == NULL)
536 return -1;
537
538 target = ++s;
539 comment = strchr(s, arch->objdump.comment_char);
540
541 if (comment != NULL)
542 s = comment - 1;
543 else
544 s = strchr(s, '\0') - 1;
545
546 while (s > target && isspace(s[0]))
547 --s;
548 s++;
549 prev = *s;
550 *s = '\0';
551
552 ops->target.raw = strdup(target);
553 *s = prev;
554
555 if (ops->target.raw == NULL)
556 goto out_free_source;
557
558 if (comment == NULL)
559 return 0;
560
561 comment = ltrim(comment);
562 comment__symbol(ops->source.raw, comment + 1, &ops->source.addr, &ops->source.name);
563 comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name);
564
565 return 0;
566
567 out_free_source:
568 zfree(&ops->source.raw);
569 return -1;
570 }
571
572 static int mov__scnprintf(struct ins *ins, char *bf, size_t size,
573 struct ins_operands *ops, int max_ins_name)
574 {
575 return scnprintf(bf, size, "%-*s %s,%s", max_ins_name, ins->name,
576 ops->source.name ?: ops->source.raw,
577 ops->target.name ?: ops->target.raw);
578 }
579
580 static struct ins_ops mov_ops = {
581 .parse = mov__parse,
582 .scnprintf = mov__scnprintf,
583 };
584
585 static int dec__parse(struct arch *arch __maybe_unused, struct ins_operands *ops, struct map_symbol *ms __maybe_unused)
586 {
587 char *target, *comment, *s, prev;
588
589 target = s = ops->raw;
590
591 while (s[0] != '\0' && !isspace(s[0]))
592 ++s;
593 prev = *s;
594 *s = '\0';
595
596 ops->target.raw = strdup(target);
597 *s = prev;
598
599 if (ops->target.raw == NULL)
600 return -1;
601
602 comment = strchr(s, arch->objdump.comment_char);
603 if (comment == NULL)
604 return 0;
605
606 comment = ltrim(comment);
607 comment__symbol(ops->target.raw, comment + 1, &ops->target.addr, &ops->target.name);
608
609 return 0;
610 }
611
612 static int dec__scnprintf(struct ins *ins, char *bf, size_t size,
613 struct ins_operands *ops, int max_ins_name)
614 {
615 return scnprintf(bf, size, "%-*s %s", max_ins_name, ins->name,
616 ops->target.name ?: ops->target.raw);
617 }
618
619 static struct ins_ops dec_ops = {
620 .parse = dec__parse,
621 .scnprintf = dec__scnprintf,
622 };
623
624 static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size,
625 struct ins_operands *ops __maybe_unused, int max_ins_name)
626 {
627 return scnprintf(bf, size, "%-*s", max_ins_name, "nop");
628 }
629
630 static struct ins_ops nop_ops = {
631 .scnprintf = nop__scnprintf,
632 };
633
634 static struct ins_ops ret_ops = {
635 .scnprintf = ins__raw_scnprintf,
636 };
637
638 bool ins__is_ret(const struct ins *ins)
639 {
640 return ins->ops == &ret_ops;
641 }
642
643 bool ins__is_lock(const struct ins *ins)
644 {
645 return ins->ops == &lock_ops;
646 }
647
648 static int ins__key_cmp(const void *name, const void *insp)
649 {
650 const struct ins *ins = insp;
651
652 return strcmp(name, ins->name);
653 }
654
655 static int ins__cmp(const void *a, const void *b)
656 {
657 const struct ins *ia = a;
658 const struct ins *ib = b;
659
660 return strcmp(ia->name, ib->name);
661 }
662
663 static void ins__sort(struct arch *arch)
664 {
665 const int nmemb = arch->nr_instructions;
666
667 qsort(arch->instructions, nmemb, sizeof(struct ins), ins__cmp);
668 }
669
670 static struct ins_ops *__ins__find(struct arch *arch, const char *name)
671 {
672 struct ins *ins;
673 const int nmemb = arch->nr_instructions;
674
675 if (!arch->sorted_instructions) {
676 ins__sort(arch);
677 arch->sorted_instructions = true;
678 }
679
680 ins = bsearch(name, arch->instructions, nmemb, sizeof(struct ins), ins__key_cmp);
681 return ins ? ins->ops : NULL;
682 }
683
684 static struct ins_ops *ins__find(struct arch *arch, const char *name)
685 {
686 struct ins_ops *ops = __ins__find(arch, name);
687
688 if (!ops && arch->associate_instruction_ops)
689 ops = arch->associate_instruction_ops(arch, name);
690
691 return ops;
692 }
693
694 static int arch__key_cmp(const void *name, const void *archp)
695 {
696 const struct arch *arch = archp;
697
698 return strcmp(name, arch->name);
699 }
700
701 static int arch__cmp(const void *a, const void *b)
702 {
703 const struct arch *aa = a;
704 const struct arch *ab = b;
705
706 return strcmp(aa->name, ab->name);
707 }
708
709 static void arch__sort(void)
710 {
711 const int nmemb = ARRAY_SIZE(architectures);
712
713 qsort(architectures, nmemb, sizeof(struct arch), arch__cmp);
714 }
715
716 static struct arch *arch__find(const char *name)
717 {
718 const int nmemb = ARRAY_SIZE(architectures);
719 static bool sorted;
720
721 if (!sorted) {
722 arch__sort();
723 sorted = true;
724 }
725
726 return bsearch(name, architectures, nmemb, sizeof(struct arch), arch__key_cmp);
727 }
728
729 static struct annotated_source *annotated_source__new(void)
730 {
731 struct annotated_source *src = zalloc(sizeof(*src));
732
733 if (src != NULL)
734 INIT_LIST_HEAD(&src->source);
735
736 return src;
737 }
738
739 static __maybe_unused void annotated_source__delete(struct annotated_source *src)
740 {
741 if (src == NULL)
742 return;
743 zfree(&src->histograms);
744 zfree(&src->cycles_hist);
745 free(src);
746 }
747
748 static int annotated_source__alloc_histograms(struct annotated_source *src,
749 size_t size, int nr_hists)
750 {
751 size_t sizeof_sym_hist;
752
753 /*
754 * Add buffer of one element for zero length symbol.
755 * When sample is taken from first instruction of
756 * zero length symbol, perf still resolves it and
757 * shows symbol name in perf report and allows to
758 * annotate it.
759 */
760 if (size == 0)
761 size = 1;
762
763 /* Check for overflow when calculating sizeof_sym_hist */
764 if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(struct sym_hist_entry))
765 return -1;
766
767 sizeof_sym_hist = (sizeof(struct sym_hist) + size * sizeof(struct sym_hist_entry));
768
769 /* Check for overflow in zalloc argument */
770 if (sizeof_sym_hist > SIZE_MAX / nr_hists)
771 return -1;
772
773 src->sizeof_sym_hist = sizeof_sym_hist;
774 src->nr_histograms = nr_hists;
775 src->histograms = calloc(nr_hists, sizeof_sym_hist) ;
776 return src->histograms ? 0 : -1;
777 }
778
779 /* The cycles histogram is lazily allocated. */
780 static int symbol__alloc_hist_cycles(struct symbol *sym)
781 {
782 struct annotation *notes = symbol__annotation(sym);
783 const size_t size = symbol__size(sym);
784
785 notes->src->cycles_hist = calloc(size, sizeof(struct cyc_hist));
786 if (notes->src->cycles_hist == NULL)
787 return -1;
788 return 0;
789 }
790
791 void symbol__annotate_zero_histograms(struct symbol *sym)
792 {
793 struct annotation *notes = symbol__annotation(sym);
794
795 pthread_mutex_lock(&notes->lock);
796 if (notes->src != NULL) {
797 memset(notes->src->histograms, 0,
798 notes->src->nr_histograms * notes->src->sizeof_sym_hist);
799 if (notes->src->cycles_hist)
800 memset(notes->src->cycles_hist, 0,
801 symbol__size(sym) * sizeof(struct cyc_hist));
802 }
803 pthread_mutex_unlock(&notes->lock);
804 }
805
806 static int __symbol__account_cycles(struct cyc_hist *ch,
807 u64 start,
808 unsigned offset, unsigned cycles,
809 unsigned have_start)
810 {
811 /*
812 * For now we can only account one basic block per
813 * final jump. But multiple could be overlapping.
814 * Always account the longest one. So when
815 * a shorter one has been already seen throw it away.
816 *
817 * We separately always account the full cycles.
818 */
819 ch[offset].num_aggr++;
820 ch[offset].cycles_aggr += cycles;
821
822 if (cycles > ch[offset].cycles_max)
823 ch[offset].cycles_max = cycles;
824
825 if (ch[offset].cycles_min) {
826 if (cycles && cycles < ch[offset].cycles_min)
827 ch[offset].cycles_min = cycles;
828 } else
829 ch[offset].cycles_min = cycles;
830
831 if (!have_start && ch[offset].have_start)
832 return 0;
833 if (ch[offset].num) {
834 if (have_start && (!ch[offset].have_start ||
835 ch[offset].start > start)) {
836 ch[offset].have_start = 0;
837 ch[offset].cycles = 0;
838 ch[offset].num = 0;
839 if (ch[offset].reset < 0xffff)
840 ch[offset].reset++;
841 } else if (have_start &&
842 ch[offset].start < start)
843 return 0;
844 }
845 ch[offset].have_start = have_start;
846 ch[offset].start = start;
847 ch[offset].cycles += cycles;
848 ch[offset].num++;
849 return 0;
850 }
851
852 static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
853 struct annotated_source *src, int evidx, u64 addr,
854 struct perf_sample *sample)
855 {
856 unsigned offset;
857 struct sym_hist *h;
858
859 pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr));
860
861 if ((addr < sym->start || addr >= sym->end) &&
862 (addr != sym->end || sym->start != sym->end)) {
863 pr_debug("%s(%d): ERANGE! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 "\n",
864 __func__, __LINE__, sym->name, sym->start, addr, sym->end);
865 return -ERANGE;
866 }
867
868 offset = addr - sym->start;
869 h = annotated_source__histogram(src, evidx);
870 if (h == NULL) {
871 pr_debug("%s(%d): ENOMEM! sym->name=%s, start=%#" PRIx64 ", addr=%#" PRIx64 ", end=%#" PRIx64 ", func: %d\n",
872 __func__, __LINE__, sym->name, sym->start, addr, sym->end, sym->type == STT_FUNC);
873 return -ENOMEM;
874 }
875 h->nr_samples++;
876 h->addr[offset].nr_samples++;
877 h->period += sample->period;
878 h->addr[offset].period += sample->period;
879
880 pr_debug3("%#" PRIx64 " %s: period++ [addr: %#" PRIx64 ", %#" PRIx64
881 ", evidx=%d] => nr_samples: %" PRIu64 ", period: %" PRIu64 "\n",
882 sym->start, sym->name, addr, addr - sym->start, evidx,
883 h->addr[offset].nr_samples, h->addr[offset].period);
884 return 0;
885 }
886
887 static struct cyc_hist *symbol__cycles_hist(struct symbol *sym)
888 {
889 struct annotation *notes = symbol__annotation(sym);
890
891 if (notes->src == NULL) {
892 notes->src = annotated_source__new();
893 if (notes->src == NULL)
894 return NULL;
895 goto alloc_cycles_hist;
896 }
897
898 if (!notes->src->cycles_hist) {
899 alloc_cycles_hist:
900 symbol__alloc_hist_cycles(sym);
901 }
902
903 return notes->src->cycles_hist;
904 }
905
906 struct annotated_source *symbol__hists(struct symbol *sym, int nr_hists)
907 {
908 struct annotation *notes = symbol__annotation(sym);
909
910 if (notes->src == NULL) {
911 notes->src = annotated_source__new();
912 if (notes->src == NULL)
913 return NULL;
914 goto alloc_histograms;
915 }
916
917 if (notes->src->histograms == NULL) {
918 alloc_histograms:
919 annotated_source__alloc_histograms(notes->src, symbol__size(sym),
920 nr_hists);
921 }
922
923 return notes->src;
924 }
925
926 static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
927 struct perf_evsel *evsel, u64 addr,
928 struct perf_sample *sample)
929 {
930 struct annotated_source *src;
931
932 if (sym == NULL)
933 return 0;
934 src = symbol__hists(sym, evsel->evlist->nr_entries);
935 if (src == NULL)
936 return -ENOMEM;
937 return __symbol__inc_addr_samples(sym, map, src, evsel->idx, addr, sample);
938 }
939
940 static int symbol__account_cycles(u64 addr, u64 start,
941 struct symbol *sym, unsigned cycles)
942 {
943 struct cyc_hist *cycles_hist;
944 unsigned offset;
945
946 if (sym == NULL)
947 return 0;
948 cycles_hist = symbol__cycles_hist(sym);
949 if (cycles_hist == NULL)
950 return -ENOMEM;
951 if (addr < sym->start || addr >= sym->end)
952 return -ERANGE;
953
954 if (start) {
955 if (start < sym->start || start >= sym->end)
956 return -ERANGE;
957 if (start >= addr)
958 start = 0;
959 }
960 offset = addr - sym->start;
961 return __symbol__account_cycles(cycles_hist,
962 start ? start - sym->start : 0,
963 offset, cycles,
964 !!start);
965 }
966
967 int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
968 struct addr_map_symbol *start,
969 unsigned cycles)
970 {
971 u64 saddr = 0;
972 int err;
973
974 if (!cycles)
975 return 0;
976
977 /*
978 * Only set start when IPC can be computed. We can only
979 * compute it when the basic block is completely in a single
980 * function.
981 * Special case the case when the jump is elsewhere, but
982 * it starts on the function start.
983 */
984 if (start &&
985 (start->sym == ams->sym ||
986 (ams->sym &&
987 start->addr == ams->sym->start + ams->map->start)))
988 saddr = start->al_addr;
989 if (saddr == 0)
990 pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n",
991 ams->addr,
992 start ? start->addr : 0,
993 ams->sym ? ams->sym->start + ams->map->start : 0,
994 saddr);
995 err = symbol__account_cycles(ams->al_addr, saddr, ams->sym, cycles);
996 if (err)
997 pr_debug2("account_cycles failed %d\n", err);
998 return err;
999 }
1000
1001 static unsigned annotation__count_insn(struct annotation *notes, u64 start, u64 end)
1002 {
1003 unsigned n_insn = 0;
1004 u64 offset;
1005
1006 for (offset = start; offset <= end; offset++) {
1007 if (notes->offsets[offset])
1008 n_insn++;
1009 }
1010 return n_insn;
1011 }
1012
1013 static void annotation__count_and_fill(struct annotation *notes, u64 start, u64 end, struct cyc_hist *ch)
1014 {
1015 unsigned n_insn;
1016 unsigned int cover_insn = 0;
1017 u64 offset;
1018
1019 n_insn = annotation__count_insn(notes, start, end);
1020 if (n_insn && ch->num && ch->cycles) {
1021 float ipc = n_insn / ((double)ch->cycles / (double)ch->num);
1022
1023 /* Hide data when there are too many overlaps. */
1024 if (ch->reset >= 0x7fff)
1025 return;
1026
1027 for (offset = start; offset <= end; offset++) {
1028 struct annotation_line *al = notes->offsets[offset];
1029
1030 if (al && al->ipc == 0.0) {
1031 al->ipc = ipc;
1032 cover_insn++;
1033 }
1034 }
1035
1036 if (cover_insn) {
1037 notes->hit_cycles += ch->cycles;
1038 notes->hit_insn += n_insn * ch->num;
1039 notes->cover_insn += cover_insn;
1040 }
1041 }
1042 }
1043
1044 void annotation__compute_ipc(struct annotation *notes, size_t size)
1045 {
1046 s64 offset;
1047
1048 if (!notes->src || !notes->src->cycles_hist)
1049 return;
1050
1051 notes->total_insn = annotation__count_insn(notes, 0, size - 1);
1052 notes->hit_cycles = 0;
1053 notes->hit_insn = 0;
1054 notes->cover_insn = 0;
1055
1056 pthread_mutex_lock(&notes->lock);
1057 for (offset = size - 1; offset >= 0; --offset) {
1058 struct cyc_hist *ch;
1059
1060 ch = &notes->src->cycles_hist[offset];
1061 if (ch && ch->cycles) {
1062 struct annotation_line *al;
1063
1064 if (ch->have_start)
1065 annotation__count_and_fill(notes, ch->start, offset, ch);
1066 al = notes->offsets[offset];
1067 if (al && ch->num_aggr) {
1068 al->cycles = ch->cycles_aggr / ch->num_aggr;
1069 al->cycles_max = ch->cycles_max;
1070 al->cycles_min = ch->cycles_min;
1071 }
1072 notes->have_cycles = true;
1073 }
1074 }
1075 pthread_mutex_unlock(&notes->lock);
1076 }
1077
1078 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
1079 struct perf_evsel *evsel)
1080 {
1081 return symbol__inc_addr_samples(ams->sym, ams->map, evsel, ams->al_addr, sample);
1082 }
1083
1084 int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample,
1085 struct perf_evsel *evsel, u64 ip)
1086 {
1087 return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evsel, ip, sample);
1088 }
1089
1090 static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, struct map_symbol *ms)
1091 {
1092 dl->ins.ops = ins__find(arch, dl->ins.name);
1093
1094 if (!dl->ins.ops)
1095 return;
1096
1097 if (dl->ins.ops->parse && dl->ins.ops->parse(arch, &dl->ops, ms) < 0)
1098 dl->ins.ops = NULL;
1099 }
1100
1101 static int disasm_line__parse(char *line, const char **namep, char **rawp)
1102 {
1103 char tmp, *name = ltrim(line);
1104
1105 if (name[0] == '\0')
1106 return -1;
1107
1108 *rawp = name + 1;
1109
1110 while ((*rawp)[0] != '\0' && !isspace((*rawp)[0]))
1111 ++*rawp;
1112
1113 tmp = (*rawp)[0];
1114 (*rawp)[0] = '\0';
1115 *namep = strdup(name);
1116
1117 if (*namep == NULL)
1118 goto out_free_name;
1119
1120 (*rawp)[0] = tmp;
1121 *rawp = ltrim(*rawp);
1122
1123 return 0;
1124
1125 out_free_name:
1126 free((void *)namep);
1127 *namep = NULL;
1128 return -1;
1129 }
1130
1131 struct annotate_args {
1132 size_t privsize;
1133 struct arch *arch;
1134 struct map_symbol ms;
1135 struct perf_evsel *evsel;
1136 struct annotation_options *options;
1137 s64 offset;
1138 char *line;
1139 int line_nr;
1140 };
1141
1142 static void annotation_line__delete(struct annotation_line *al)
1143 {
1144 void *ptr = (void *) al - al->privsize;
1145
1146 free_srcline(al->path);
1147 zfree(&al->line);
1148 free(ptr);
1149 }
1150
1151 /*
1152 * Allocating the annotation line data with following
1153 * structure:
1154 *
1155 * --------------------------------------
1156 * private space | struct annotation_line
1157 * --------------------------------------
1158 *
1159 * Size of the private space is stored in 'struct annotation_line'.
1160 *
1161 */
1162 static struct annotation_line *
1163 annotation_line__new(struct annotate_args *args, size_t privsize)
1164 {
1165 struct annotation_line *al;
1166 struct perf_evsel *evsel = args->evsel;
1167 size_t size = privsize + sizeof(*al);
1168 int nr = 1;
1169
1170 if (perf_evsel__is_group_event(evsel))
1171 nr = evsel->nr_members;
1172
1173 size += sizeof(al->data[0]) * nr;
1174
1175 al = zalloc(size);
1176 if (al) {
1177 al = (void *) al + privsize;
1178 al->privsize = privsize;
1179 al->offset = args->offset;
1180 al->line = strdup(args->line);
1181 al->line_nr = args->line_nr;
1182 al->data_nr = nr;
1183 }
1184
1185 return al;
1186 }
1187
1188 /*
1189 * Allocating the disasm annotation line data with
1190 * following structure:
1191 *
1192 * ------------------------------------------------------------
1193 * privsize space | struct disasm_line | struct annotation_line
1194 * ------------------------------------------------------------
1195 *
1196 * We have 'struct annotation_line' member as last member
1197 * of 'struct disasm_line' to have an easy access.
1198 *
1199 */
1200 static struct disasm_line *disasm_line__new(struct annotate_args *args)
1201 {
1202 struct disasm_line *dl = NULL;
1203 struct annotation_line *al;
1204 size_t privsize = args->privsize + offsetof(struct disasm_line, al);
1205
1206 al = annotation_line__new(args, privsize);
1207 if (al != NULL) {
1208 dl = disasm_line(al);
1209
1210 if (dl->al.line == NULL)
1211 goto out_delete;
1212
1213 if (args->offset != -1) {
1214 if (disasm_line__parse(dl->al.line, &dl->ins.name, &dl->ops.raw) < 0)
1215 goto out_free_line;
1216
1217 disasm_line__init_ins(dl, args->arch, &args->ms);
1218 }
1219 }
1220
1221 return dl;
1222
1223 out_free_line:
1224 zfree(&dl->al.line);
1225 out_delete:
1226 free(dl);
1227 return NULL;
1228 }
1229
1230 void disasm_line__free(struct disasm_line *dl)
1231 {
1232 if (dl->ins.ops && dl->ins.ops->free)
1233 dl->ins.ops->free(&dl->ops);
1234 else
1235 ins__delete(&dl->ops);
1236 free((void *)dl->ins.name);
1237 dl->ins.name = NULL;
1238 annotation_line__delete(&dl->al);
1239 }
1240
1241 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw, int max_ins_name)
1242 {
1243 if (raw || !dl->ins.ops)
1244 return scnprintf(bf, size, "%-*s %s", max_ins_name, dl->ins.name, dl->ops.raw);
1245
1246 return ins__scnprintf(&dl->ins, bf, size, &dl->ops, max_ins_name);
1247 }
1248
1249 static void annotation_line__add(struct annotation_line *al, struct list_head *head)
1250 {
1251 list_add_tail(&al->node, head);
1252 }
1253
1254 struct annotation_line *
1255 annotation_line__next(struct annotation_line *pos, struct list_head *head)
1256 {
1257 list_for_each_entry_continue(pos, head, node)
1258 if (pos->offset >= 0)
1259 return pos;
1260
1261 return NULL;
1262 }
1263
1264 static const char *annotate__address_color(struct block_range *br)
1265 {
1266 double cov = block_range__coverage(br);
1267
1268 if (cov >= 0) {
1269 /* mark red for >75% coverage */
1270 if (cov > 0.75)
1271 return PERF_COLOR_RED;
1272
1273 /* mark dull for <1% coverage */
1274 if (cov < 0.01)
1275 return PERF_COLOR_NORMAL;
1276 }
1277
1278 return PERF_COLOR_MAGENTA;
1279 }
1280
1281 static const char *annotate__asm_color(struct block_range *br)
1282 {
1283 double cov = block_range__coverage(br);
1284
1285 if (cov >= 0) {
1286 /* mark dull for <1% coverage */
1287 if (cov < 0.01)
1288 return PERF_COLOR_NORMAL;
1289 }
1290
1291 return PERF_COLOR_BLUE;
1292 }
1293
1294 static void annotate__branch_printf(struct block_range *br, u64 addr)
1295 {
1296 bool emit_comment = true;
1297
1298 if (!br)
1299 return;
1300
1301 #if 1
1302 if (br->is_target && br->start == addr) {
1303 struct block_range *branch = br;
1304 double p;
1305
1306 /*
1307 * Find matching branch to our target.
1308 */
1309 while (!branch->is_branch)
1310 branch = block_range__next(branch);
1311
1312 p = 100 *(double)br->entry / branch->coverage;
1313
1314 if (p > 0.1) {
1315 if (emit_comment) {
1316 emit_comment = false;
1317 printf("\t#");
1318 }
1319
1320 /*
1321 * The percentage of coverage joined at this target in relation
1322 * to the next branch.
1323 */
1324 printf(" +%.2f%%", p);
1325 }
1326 }
1327 #endif
1328 if (br->is_branch && br->end == addr) {
1329 double p = 100*(double)br->taken / br->coverage;
1330
1331 if (p > 0.1) {
1332 if (emit_comment) {
1333 emit_comment = false;
1334 printf("\t#");
1335 }
1336
1337 /*
1338 * The percentage of coverage leaving at this branch, and
1339 * its prediction ratio.
1340 */
1341 printf(" -%.2f%% (p:%.2f%%)", p, 100*(double)br->pred / br->taken);
1342 }
1343 }
1344 }
1345
1346 static int disasm_line__print(struct disasm_line *dl, u64 start, int addr_fmt_width)
1347 {
1348 s64 offset = dl->al.offset;
1349 const u64 addr = start + offset;
1350 struct block_range *br;
1351
1352 br = block_range__find(addr);
1353 color_fprintf(stdout, annotate__address_color(br), " %*" PRIx64 ":", addr_fmt_width, addr);
1354 color_fprintf(stdout, annotate__asm_color(br), "%s", dl->al.line);
1355 annotate__branch_printf(br, addr);
1356 return 0;
1357 }
1358
1359 static int
1360 annotation_line__print(struct annotation_line *al, struct symbol *sym, u64 start,
1361 struct perf_evsel *evsel, u64 len, int min_pcnt, int printed,
1362 int max_lines, struct annotation_line *queue, int addr_fmt_width,
1363 int percent_type)
1364 {
1365 struct disasm_line *dl = container_of(al, struct disasm_line, al);
1366 static const char *prev_line;
1367 static const char *prev_color;
1368
1369 if (al->offset != -1) {
1370 double max_percent = 0.0;
1371 int i, nr_percent = 1;
1372 const char *color;
1373 struct annotation *notes = symbol__annotation(sym);
1374
1375 for (i = 0; i < al->data_nr; i++) {
1376 double percent;
1377
1378 percent = annotation_data__percent(&al->data[i],
1379 percent_type);
1380
1381 if (percent > max_percent)
1382 max_percent = percent;
1383 }
1384
1385 if (al->data_nr > nr_percent)
1386 nr_percent = al->data_nr;
1387
1388 if (max_percent < min_pcnt)
1389 return -1;
1390
1391 if (max_lines && printed >= max_lines)
1392 return 1;
1393
1394 if (queue != NULL) {
1395 list_for_each_entry_from(queue, &notes->src->source, node) {
1396 if (queue == al)
1397 break;
1398 annotation_line__print(queue, sym, start, evsel, len,
1399 0, 0, 1, NULL, addr_fmt_width,
1400 percent_type);
1401 }
1402 }
1403
1404 color = get_percent_color(max_percent);
1405
1406 /*
1407 * Also color the filename and line if needed, with
1408 * the same color than the percentage. Don't print it
1409 * twice for close colored addr with the same filename:line
1410 */
1411 if (al->path) {
1412 if (!prev_line || strcmp(prev_line, al->path)
1413 || color != prev_color) {
1414 color_fprintf(stdout, color, " %s", al->path);
1415 prev_line = al->path;
1416 prev_color = color;
1417 }
1418 }
1419
1420 for (i = 0; i < nr_percent; i++) {
1421 struct annotation_data *data = &al->data[i];
1422 double percent;
1423
1424 percent = annotation_data__percent(data, percent_type);
1425 color = get_percent_color(percent);
1426
1427 if (symbol_conf.show_total_period)
1428 color_fprintf(stdout, color, " %11" PRIu64,
1429 data->he.period);
1430 else if (symbol_conf.show_nr_samples)
1431 color_fprintf(stdout, color, " %7" PRIu64,
1432 data->he.nr_samples);
1433 else
1434 color_fprintf(stdout, color, " %7.2f", percent);
1435 }
1436
1437 printf(" : ");
1438
1439 disasm_line__print(dl, start, addr_fmt_width);
1440 printf("\n");
1441 } else if (max_lines && printed >= max_lines)
1442 return 1;
1443 else {
1444 int width = symbol_conf.show_total_period ? 12 : 8;
1445
1446 if (queue)
1447 return -1;
1448
1449 if (perf_evsel__is_group_event(evsel))
1450 width *= evsel->nr_members;
1451
1452 if (!*al->line)
1453 printf(" %*s:\n", width, " ");
1454 else
1455 printf(" %*s: %*s %s\n", width, " ", addr_fmt_width, " ", al->line);
1456 }
1457
1458 return 0;
1459 }
1460
1461 /*
1462 * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw)
1463 * which looks like following
1464 *
1465 * 0000000000415500 <_init>:
1466 * 415500: sub $0x8,%rsp
1467 * 415504: mov 0x2f5ad5(%rip),%rax # 70afe0 <_DYNAMIC+0x2f8>
1468 * 41550b: test %rax,%rax
1469 * 41550e: je 415515 <_init+0x15>
1470 * 415510: callq 416e70 <__gmon_start__@plt>
1471 * 415515: add $0x8,%rsp
1472 * 415519: retq
1473 *
1474 * it will be parsed and saved into struct disasm_line as
1475 * <offset> <name> <ops.raw>
1476 *
1477 * The offset will be a relative offset from the start of the symbol and -1
1478 * means that it's not a disassembly line so should be treated differently.
1479 * The ops.raw part will be parsed further according to type of the instruction.
1480 */
1481 static int symbol__parse_objdump_line(struct symbol *sym, FILE *file,
1482 struct annotate_args *args,
1483 int *line_nr)
1484 {
1485 struct map *map = args->ms.map;
1486 struct annotation *notes = symbol__annotation(sym);
1487 struct disasm_line *dl;
1488 char *line = NULL, *parsed_line, *tmp, *tmp2;
1489 size_t line_len;
1490 s64 line_ip, offset = -1;
1491 regmatch_t match[2];
1492
1493 if (getline(&line, &line_len, file) < 0)
1494 return -1;
1495
1496 if (!line)
1497 return -1;
1498
1499 line_ip = -1;
1500 parsed_line = rtrim(line);
1501
1502 /* /filename:linenr ? Save line number and ignore. */
1503 if (regexec(&file_lineno, parsed_line, 2, match, 0) == 0) {
1504 *line_nr = atoi(parsed_line + match[1].rm_so);
1505 return 0;
1506 }
1507
1508 tmp = ltrim(parsed_line);
1509 if (*tmp) {
1510 /*
1511 * Parse hexa addresses followed by ':'
1512 */
1513 line_ip = strtoull(tmp, &tmp2, 16);
1514 if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0')
1515 line_ip = -1;
1516 }
1517
1518 if (line_ip != -1) {
1519 u64 start = map__rip_2objdump(map, sym->start),
1520 end = map__rip_2objdump(map, sym->end);
1521
1522 offset = line_ip - start;
1523 if ((u64)line_ip < start || (u64)line_ip >= end)
1524 offset = -1;
1525 else
1526 parsed_line = tmp2 + 1;
1527 }
1528
1529 args->offset = offset;
1530 args->line = parsed_line;
1531 args->line_nr = *line_nr;
1532 args->ms.sym = sym;
1533
1534 dl = disasm_line__new(args);
1535 free(line);
1536 (*line_nr)++;
1537
1538 if (dl == NULL)
1539 return -1;
1540
1541 if (!disasm_line__has_local_offset(dl)) {
1542 dl->ops.target.offset = dl->ops.target.addr -
1543 map__rip_2objdump(map, sym->start);
1544 dl->ops.target.offset_avail = true;
1545 }
1546
1547 /* kcore has no symbols, so add the call target symbol */
1548 if (dl->ins.ops && ins__is_call(&dl->ins) && !dl->ops.target.sym) {
1549 struct addr_map_symbol target = {
1550 .map = map,
1551 .addr = dl->ops.target.addr,
1552 };
1553
1554 if (!map_groups__find_ams(&target) &&
1555 target.sym->start == target.al_addr)
1556 dl->ops.target.sym = target.sym;
1557 }
1558
1559 annotation_line__add(&dl->al, &notes->src->source);
1560
1561 return 0;
1562 }
1563
1564 static __attribute__((constructor)) void symbol__init_regexpr(void)
1565 {
1566 regcomp(&file_lineno, "^/[^:]+:([0-9]+)", REG_EXTENDED);
1567 }
1568
1569 static void delete_last_nop(struct symbol *sym)
1570 {
1571 struct annotation *notes = symbol__annotation(sym);
1572 struct list_head *list = &notes->src->source;
1573 struct disasm_line *dl;
1574
1575 while (!list_empty(list)) {
1576 dl = list_entry(list->prev, struct disasm_line, al.node);
1577
1578 if (dl->ins.ops) {
1579 if (dl->ins.ops != &nop_ops)
1580 return;
1581 } else {
1582 if (!strstr(dl->al.line, " nop ") &&
1583 !strstr(dl->al.line, " nopl ") &&
1584 !strstr(dl->al.line, " nopw "))
1585 return;
1586 }
1587
1588 list_del(&dl->al.node);
1589 disasm_line__free(dl);
1590 }
1591 }
1592
1593 int symbol__strerror_disassemble(struct symbol *sym __maybe_unused, struct map *map,
1594 int errnum, char *buf, size_t buflen)
1595 {
1596 struct dso *dso = 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->build_id,
1612 sizeof(dso->build_id), bf + 15);
1613 build_id_msg = bf;
1614 }
1615 scnprintf(buf, buflen,
1616 "No vmlinux file%s\nwas found in the path.\n\n"
1617 "Note that annotation using /proc/kcore requires CAP_SYS_RAWIO capability.\n\n"
1618 "Please use:\n\n"
1619 " perf buildid-cache -vu vmlinux\n\n"
1620 "or:\n\n"
1621 " --vmlinux vmlinux\n", build_id_msg ?: "");
1622 }
1623 break;
1624 case SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF:
1625 scnprintf(buf, buflen, "Please link with binutils's libopcode to enable BPF annotation");
1626 break;
1627 default:
1628 scnprintf(buf, buflen, "Internal error: Invalid %d error code\n", errnum);
1629 break;
1630 }
1631
1632 return 0;
1633 }
1634
1635 static int dso__disassemble_filename(struct dso *dso, char *filename, size_t filename_size)
1636 {
1637 char linkname[PATH_MAX];
1638 char *build_id_filename;
1639 char *build_id_path = NULL;
1640 char *pos;
1641
1642 if (dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
1643 !dso__is_kcore(dso))
1644 return SYMBOL_ANNOTATE_ERRNO__NO_VMLINUX;
1645
1646 build_id_filename = dso__build_id_filename(dso, NULL, 0, false);
1647 if (build_id_filename) {
1648 __symbol__join_symfs(filename, filename_size, build_id_filename);
1649 free(build_id_filename);
1650 } else {
1651 if (dso->has_build_id)
1652 return ENOMEM;
1653 goto fallback;
1654 }
1655
1656 build_id_path = strdup(filename);
1657 if (!build_id_path)
1658 return -1;
1659
1660 /*
1661 * old style build-id cache has name of XX/XXXXXXX.. while
1662 * new style has XX/XXXXXXX../{elf,kallsyms,vdso}.
1663 * extract the build-id part of dirname in the new style only.
1664 */
1665 pos = strrchr(build_id_path, '/');
1666 if (pos && strlen(pos) < SBUILD_ID_SIZE - 2)
1667 dirname(build_id_path);
1668
1669 if (dso__is_kcore(dso) ||
1670 readlink(build_id_path, linkname, sizeof(linkname)) < 0 ||
1671 strstr(linkname, DSO__NAME_KALLSYMS) ||
1672 access(filename, R_OK)) {
1673 fallback:
1674 /*
1675 * If we don't have build-ids or the build-id file isn't in the
1676 * cache, or is just a kallsyms file, well, lets hope that this
1677 * DSO is the same as when 'perf record' ran.
1678 */
1679 __symbol__join_symfs(filename, filename_size, dso->long_name);
1680 }
1681
1682 free(build_id_path);
1683 return 0;
1684 }
1685
1686 #if defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
1687 #define PACKAGE "perf"
1688 #include <bfd.h>
1689 #include <dis-asm.h>
1690
1691 static int symbol__disassemble_bpf(struct symbol *sym,
1692 struct annotate_args *args)
1693 {
1694 struct annotation *notes = symbol__annotation(sym);
1695 struct annotation_options *opts = args->options;
1696 struct bpf_prog_info_linear *info_linear;
1697 struct bpf_prog_linfo *prog_linfo = NULL;
1698 struct bpf_prog_info_node *info_node;
1699 int len = sym->end - sym->start;
1700 disassembler_ftype disassemble;
1701 struct map *map = args->ms.map;
1702 struct disassemble_info info;
1703 struct dso *dso = map->dso;
1704 int pc = 0, count, sub_id;
1705 struct btf *btf = NULL;
1706 char tpath[PATH_MAX];
1707 size_t buf_size;
1708 int nr_skip = 0;
1709 int ret = -1;
1710 char *buf;
1711 bfd *bfdf;
1712 FILE *s;
1713
1714 if (dso->binary_type != DSO_BINARY_TYPE__BPF_PROG_INFO)
1715 return -1;
1716
1717 pr_debug("%s: handling sym %s addr %" PRIx64 " len %" PRIx64 "\n", __func__,
1718 sym->name, sym->start, sym->end - sym->start);
1719
1720 memset(tpath, 0, sizeof(tpath));
1721 perf_exe(tpath, sizeof(tpath));
1722
1723 bfdf = bfd_openr(tpath, NULL);
1724 assert(bfdf);
1725 assert(bfd_check_format(bfdf, bfd_object));
1726
1727 s = open_memstream(&buf, &buf_size);
1728 if (!s)
1729 goto out;
1730 init_disassemble_info(&info, s,
1731 (fprintf_ftype) fprintf);
1732
1733 info.arch = bfd_get_arch(bfdf);
1734 info.mach = bfd_get_mach(bfdf);
1735
1736 info_node = perf_env__find_bpf_prog_info(dso->bpf_prog.env,
1737 dso->bpf_prog.id);
1738 if (!info_node)
1739 goto out;
1740 info_linear = info_node->info_linear;
1741 sub_id = dso->bpf_prog.sub_id;
1742
1743 info.buffer = (void *)(uintptr_t)(info_linear->info.jited_prog_insns);
1744 info.buffer_length = info_linear->info.jited_prog_len;
1745
1746 if (info_linear->info.nr_line_info)
1747 prog_linfo = bpf_prog_linfo__new(&info_linear->info);
1748
1749 if (info_linear->info.btf_id) {
1750 struct btf_node *node;
1751
1752 node = perf_env__find_btf(dso->bpf_prog.env,
1753 info_linear->info.btf_id);
1754 if (node)
1755 btf = btf__new((__u8 *)(node->data),
1756 node->data_size);
1757 }
1758
1759 disassemble_init_for_target(&info);
1760
1761 #ifdef DISASM_FOUR_ARGS_SIGNATURE
1762 disassemble = disassembler(info.arch,
1763 bfd_big_endian(bfdf),
1764 info.mach,
1765 bfdf);
1766 #else
1767 disassemble = disassembler(bfdf);
1768 #endif
1769 assert(disassemble);
1770
1771 fflush(s);
1772 do {
1773 const struct bpf_line_info *linfo = NULL;
1774 struct disasm_line *dl;
1775 size_t prev_buf_size;
1776 const char *srcline;
1777 u64 addr;
1778
1779 addr = pc + ((u64 *)(uintptr_t)(info_linear->info.jited_ksyms))[sub_id];
1780 count = disassemble(pc, &info);
1781
1782 if (prog_linfo)
1783 linfo = bpf_prog_linfo__lfind_addr_func(prog_linfo,
1784 addr, sub_id,
1785 nr_skip);
1786
1787 if (linfo && btf) {
1788 srcline = btf__name_by_offset(btf, linfo->line_off);
1789 nr_skip++;
1790 } else
1791 srcline = NULL;
1792
1793 fprintf(s, "\n");
1794 prev_buf_size = buf_size;
1795 fflush(s);
1796
1797 if (!opts->hide_src_code && srcline) {
1798 args->offset = -1;
1799 args->line = strdup(srcline);
1800 args->line_nr = 0;
1801 args->ms.sym = sym;
1802 dl = disasm_line__new(args);
1803 if (dl) {
1804 annotation_line__add(&dl->al,
1805 &notes->src->source);
1806 }
1807 }
1808
1809 args->offset = pc;
1810 args->line = buf + prev_buf_size;
1811 args->line_nr = 0;
1812 args->ms.sym = sym;
1813 dl = disasm_line__new(args);
1814 if (dl)
1815 annotation_line__add(&dl->al, &notes->src->source);
1816
1817 pc += count;
1818 } while (count > 0 && pc < len);
1819
1820 ret = 0;
1821 out:
1822 free(prog_linfo);
1823 free(btf);
1824 fclose(s);
1825 bfd_close(bfdf);
1826 return ret;
1827 }
1828 #else // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
1829 static int symbol__disassemble_bpf(struct symbol *sym __maybe_unused,
1830 struct annotate_args *args __maybe_unused)
1831 {
1832 return SYMBOL_ANNOTATE_ERRNO__NO_LIBOPCODES_FOR_BPF;
1833 }
1834 #endif // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
1835
1836 static int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
1837 {
1838 struct annotation_options *opts = args->options;
1839 struct map *map = args->ms.map;
1840 struct dso *dso = map->dso;
1841 char *command;
1842 FILE *file;
1843 char symfs_filename[PATH_MAX];
1844 struct kcore_extract kce;
1845 bool delete_extract = false;
1846 bool decomp = false;
1847 int stdout_fd[2];
1848 int lineno = 0;
1849 int nline;
1850 pid_t pid;
1851 int err = dso__disassemble_filename(dso, symfs_filename, sizeof(symfs_filename));
1852
1853 if (err)
1854 return err;
1855
1856 pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
1857 symfs_filename, sym->name, map->unmap_ip(map, sym->start),
1858 map->unmap_ip(map, sym->end));
1859
1860 pr_debug("annotating [%p] %30s : [%p] %30s\n",
1861 dso, dso->long_name, sym, sym->name);
1862
1863 if (dso->binary_type == DSO_BINARY_TYPE__BPF_PROG_INFO) {
1864 return symbol__disassemble_bpf(sym, args);
1865 } else if (dso__is_kcore(dso)) {
1866 kce.kcore_filename = symfs_filename;
1867 kce.addr = map__rip_2objdump(map, sym->start);
1868 kce.offs = sym->start;
1869 kce.len = sym->end - sym->start;
1870 if (!kcore_extract__create(&kce)) {
1871 delete_extract = true;
1872 strlcpy(symfs_filename, kce.extract_filename,
1873 sizeof(symfs_filename));
1874 }
1875 } else if (dso__needs_decompress(dso)) {
1876 char tmp[KMOD_DECOMP_LEN];
1877
1878 if (dso__decompress_kmodule_path(dso, symfs_filename,
1879 tmp, sizeof(tmp)) < 0)
1880 goto out;
1881
1882 decomp = true;
1883 strcpy(symfs_filename, tmp);
1884 }
1885
1886 err = asprintf(&command,
1887 "%s %s%s --start-address=0x%016" PRIx64
1888 " --stop-address=0x%016" PRIx64
1889 " -l -d %s %s -C \"$1\" 2>/dev/null|grep -v \"$1:\"|expand",
1890 opts->objdump_path ?: "objdump",
1891 opts->disassembler_style ? "-M " : "",
1892 opts->disassembler_style ?: "",
1893 map__rip_2objdump(map, sym->start),
1894 map__rip_2objdump(map, sym->end),
1895 opts->show_asm_raw ? "" : "--no-show-raw",
1896 opts->annotate_src ? "-S" : "");
1897
1898 if (err < 0) {
1899 pr_err("Failure allocating memory for the command to run\n");
1900 goto out_remove_tmp;
1901 }
1902
1903 pr_debug("Executing: %s\n", command);
1904
1905 err = -1;
1906 if (pipe(stdout_fd) < 0) {
1907 pr_err("Failure creating the pipe to run %s\n", command);
1908 goto out_free_command;
1909 }
1910
1911 pid = fork();
1912 if (pid < 0) {
1913 pr_err("Failure forking to run %s\n", command);
1914 goto out_close_stdout;
1915 }
1916
1917 if (pid == 0) {
1918 close(stdout_fd[0]);
1919 dup2(stdout_fd[1], 1);
1920 close(stdout_fd[1]);
1921 execl("/bin/sh", "sh", "-c", command, "--", symfs_filename,
1922 NULL);
1923 perror(command);
1924 exit(-1);
1925 }
1926
1927 close(stdout_fd[1]);
1928
1929 file = fdopen(stdout_fd[0], "r");
1930 if (!file) {
1931 pr_err("Failure creating FILE stream for %s\n", command);
1932 /*
1933 * If we were using debug info should retry with
1934 * original binary.
1935 */
1936 goto out_free_command;
1937 }
1938
1939 nline = 0;
1940 while (!feof(file)) {
1941 /*
1942 * The source code line number (lineno) needs to be kept in
1943 * across calls to symbol__parse_objdump_line(), so that it
1944 * can associate it with the instructions till the next one.
1945 * See disasm_line__new() and struct disasm_line::line_nr.
1946 */
1947 if (symbol__parse_objdump_line(sym, file, args, &lineno) < 0)
1948 break;
1949 nline++;
1950 }
1951
1952 if (nline == 0)
1953 pr_err("No output from %s\n", command);
1954
1955 /*
1956 * kallsyms does not have symbol sizes so there may a nop at the end.
1957 * Remove it.
1958 */
1959 if (dso__is_kcore(dso))
1960 delete_last_nop(sym);
1961
1962 fclose(file);
1963 err = 0;
1964 out_free_command:
1965 free(command);
1966 out_remove_tmp:
1967 close(stdout_fd[0]);
1968
1969 if (decomp)
1970 unlink(symfs_filename);
1971
1972 if (delete_extract)
1973 kcore_extract__delete(&kce);
1974 out:
1975 return err;
1976
1977 out_close_stdout:
1978 close(stdout_fd[1]);
1979 goto out_free_command;
1980 }
1981
1982 static void calc_percent(struct sym_hist *sym_hist,
1983 struct hists *hists,
1984 struct annotation_data *data,
1985 s64 offset, s64 end)
1986 {
1987 unsigned int hits = 0;
1988 u64 period = 0;
1989
1990 while (offset < end) {
1991 hits += sym_hist->addr[offset].nr_samples;
1992 period += sym_hist->addr[offset].period;
1993 ++offset;
1994 }
1995
1996 if (sym_hist->nr_samples) {
1997 data->he.period = period;
1998 data->he.nr_samples = hits;
1999 data->percent[PERCENT_HITS_LOCAL] = 100.0 * hits / sym_hist->nr_samples;
2000 }
2001
2002 if (hists->stats.nr_non_filtered_samples)
2003 data->percent[PERCENT_HITS_GLOBAL] = 100.0 * hits / hists->stats.nr_non_filtered_samples;
2004
2005 if (sym_hist->period)
2006 data->percent[PERCENT_PERIOD_LOCAL] = 100.0 * period / sym_hist->period;
2007
2008 if (hists->stats.total_period)
2009 data->percent[PERCENT_PERIOD_GLOBAL] = 100.0 * period / hists->stats.total_period;
2010 }
2011
2012 static void annotation__calc_percent(struct annotation *notes,
2013 struct perf_evsel *leader, s64 len)
2014 {
2015 struct annotation_line *al, *next;
2016 struct perf_evsel *evsel;
2017
2018 list_for_each_entry(al, &notes->src->source, node) {
2019 s64 end;
2020 int i = 0;
2021
2022 if (al->offset == -1)
2023 continue;
2024
2025 next = annotation_line__next(al, &notes->src->source);
2026 end = next ? next->offset : len;
2027
2028 for_each_group_evsel(evsel, leader) {
2029 struct hists *hists = evsel__hists(evsel);
2030 struct annotation_data *data;
2031 struct sym_hist *sym_hist;
2032
2033 BUG_ON(i >= al->data_nr);
2034
2035 sym_hist = annotation__histogram(notes, evsel->idx);
2036 data = &al->data[i++];
2037
2038 calc_percent(sym_hist, hists, data, al->offset, end);
2039 }
2040 }
2041 }
2042
2043 void symbol__calc_percent(struct symbol *sym, struct perf_evsel *evsel)
2044 {
2045 struct annotation *notes = symbol__annotation(sym);
2046
2047 annotation__calc_percent(notes, evsel, symbol__size(sym));
2048 }
2049
2050 int symbol__annotate(struct symbol *sym, struct map *map,
2051 struct perf_evsel *evsel, size_t privsize,
2052 struct annotation_options *options,
2053 struct arch **parch)
2054 {
2055 struct annotation *notes = symbol__annotation(sym);
2056 struct annotate_args args = {
2057 .privsize = privsize,
2058 .evsel = evsel,
2059 .options = options,
2060 };
2061 struct perf_env *env = perf_evsel__env(evsel);
2062 const char *arch_name = perf_env__arch(env);
2063 struct arch *arch;
2064 int err;
2065
2066 if (!arch_name)
2067 return -1;
2068
2069 args.arch = arch = arch__find(arch_name);
2070 if (arch == NULL)
2071 return -ENOTSUP;
2072
2073 if (parch)
2074 *parch = arch;
2075
2076 if (arch->init) {
2077 err = arch->init(arch, env ? env->cpuid : NULL);
2078 if (err) {
2079 pr_err("%s: failed to initialize %s arch priv area\n", __func__, arch->name);
2080 return err;
2081 }
2082 }
2083
2084 args.ms.map = map;
2085 args.ms.sym = sym;
2086 notes->start = map__rip_2objdump(map, sym->start);
2087
2088 return symbol__disassemble(sym, &args);
2089 }
2090
2091 static void insert_source_line(struct rb_root *root, struct annotation_line *al,
2092 struct annotation_options *opts)
2093 {
2094 struct annotation_line *iter;
2095 struct rb_node **p = &root->rb_node;
2096 struct rb_node *parent = NULL;
2097 int i, ret;
2098
2099 while (*p != NULL) {
2100 parent = *p;
2101 iter = rb_entry(parent, struct annotation_line, rb_node);
2102
2103 ret = strcmp(iter->path, al->path);
2104 if (ret == 0) {
2105 for (i = 0; i < al->data_nr; i++) {
2106 iter->data[i].percent_sum += annotation_data__percent(&al->data[i],
2107 opts->percent_type);
2108 }
2109 return;
2110 }
2111
2112 if (ret < 0)
2113 p = &(*p)->rb_left;
2114 else
2115 p = &(*p)->rb_right;
2116 }
2117
2118 for (i = 0; i < al->data_nr; i++) {
2119 al->data[i].percent_sum = annotation_data__percent(&al->data[i],
2120 opts->percent_type);
2121 }
2122
2123 rb_link_node(&al->rb_node, parent, p);
2124 rb_insert_color(&al->rb_node, root);
2125 }
2126
2127 static int cmp_source_line(struct annotation_line *a, struct annotation_line *b)
2128 {
2129 int i;
2130
2131 for (i = 0; i < a->data_nr; i++) {
2132 if (a->data[i].percent_sum == b->data[i].percent_sum)
2133 continue;
2134 return a->data[i].percent_sum > b->data[i].percent_sum;
2135 }
2136
2137 return 0;
2138 }
2139
2140 static void __resort_source_line(struct rb_root *root, struct annotation_line *al)
2141 {
2142 struct annotation_line *iter;
2143 struct rb_node **p = &root->rb_node;
2144 struct rb_node *parent = NULL;
2145
2146 while (*p != NULL) {
2147 parent = *p;
2148 iter = rb_entry(parent, struct annotation_line, rb_node);
2149
2150 if (cmp_source_line(al, iter))
2151 p = &(*p)->rb_left;
2152 else
2153 p = &(*p)->rb_right;
2154 }
2155
2156 rb_link_node(&al->rb_node, parent, p);
2157 rb_insert_color(&al->rb_node, root);
2158 }
2159
2160 static void resort_source_line(struct rb_root *dest_root, struct rb_root *src_root)
2161 {
2162 struct annotation_line *al;
2163 struct rb_node *node;
2164
2165 node = rb_first(src_root);
2166 while (node) {
2167 struct rb_node *next;
2168
2169 al = rb_entry(node, struct annotation_line, rb_node);
2170 next = rb_next(node);
2171 rb_erase(node, src_root);
2172
2173 __resort_source_line(dest_root, al);
2174 node = next;
2175 }
2176 }
2177
2178 static void print_summary(struct rb_root *root, const char *filename)
2179 {
2180 struct annotation_line *al;
2181 struct rb_node *node;
2182
2183 printf("\nSorted summary for file %s\n", filename);
2184 printf("----------------------------------------------\n\n");
2185
2186 if (RB_EMPTY_ROOT(root)) {
2187 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
2188 return;
2189 }
2190
2191 node = rb_first(root);
2192 while (node) {
2193 double percent, percent_max = 0.0;
2194 const char *color;
2195 char *path;
2196 int i;
2197
2198 al = rb_entry(node, struct annotation_line, rb_node);
2199 for (i = 0; i < al->data_nr; i++) {
2200 percent = al->data[i].percent_sum;
2201 color = get_percent_color(percent);
2202 color_fprintf(stdout, color, " %7.2f", percent);
2203
2204 if (percent > percent_max)
2205 percent_max = percent;
2206 }
2207
2208 path = al->path;
2209 color = get_percent_color(percent_max);
2210 color_fprintf(stdout, color, " %s\n", path);
2211
2212 node = rb_next(node);
2213 }
2214 }
2215
2216 static void symbol__annotate_hits(struct symbol *sym, struct perf_evsel *evsel)
2217 {
2218 struct annotation *notes = symbol__annotation(sym);
2219 struct sym_hist *h = annotation__histogram(notes, evsel->idx);
2220 u64 len = symbol__size(sym), offset;
2221
2222 for (offset = 0; offset < len; ++offset)
2223 if (h->addr[offset].nr_samples != 0)
2224 printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2,
2225 sym->start + offset, h->addr[offset].nr_samples);
2226 printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->nr_samples", h->nr_samples);
2227 }
2228
2229 static int annotated_source__addr_fmt_width(struct list_head *lines, u64 start)
2230 {
2231 char bf[32];
2232 struct annotation_line *line;
2233
2234 list_for_each_entry_reverse(line, lines, node) {
2235 if (line->offset != -1)
2236 return scnprintf(bf, sizeof(bf), "%" PRIx64, start + line->offset);
2237 }
2238
2239 return 0;
2240 }
2241
2242 int symbol__annotate_printf(struct symbol *sym, struct map *map,
2243 struct perf_evsel *evsel,
2244 struct annotation_options *opts)
2245 {
2246 struct dso *dso = map->dso;
2247 char *filename;
2248 const char *d_filename;
2249 const char *evsel_name = perf_evsel__name(evsel);
2250 struct annotation *notes = symbol__annotation(sym);
2251 struct sym_hist *h = annotation__histogram(notes, evsel->idx);
2252 struct annotation_line *pos, *queue = NULL;
2253 u64 start = map__rip_2objdump(map, sym->start);
2254 int printed = 2, queue_len = 0, addr_fmt_width;
2255 int more = 0;
2256 bool context = opts->context;
2257 u64 len;
2258 int width = symbol_conf.show_total_period ? 12 : 8;
2259 int graph_dotted_len;
2260 char buf[512];
2261
2262 filename = strdup(dso->long_name);
2263 if (!filename)
2264 return -ENOMEM;
2265
2266 if (opts->full_path)
2267 d_filename = filename;
2268 else
2269 d_filename = basename(filename);
2270
2271 len = symbol__size(sym);
2272
2273 if (perf_evsel__is_group_event(evsel)) {
2274 width *= evsel->nr_members;
2275 perf_evsel__group_desc(evsel, buf, sizeof(buf));
2276 evsel_name = buf;
2277 }
2278
2279 graph_dotted_len = printf(" %-*.*s| Source code & Disassembly of %s for %s (%" PRIu64 " samples, "
2280 "percent: %s)\n",
2281 width, width, symbol_conf.show_total_period ? "Period" :
2282 symbol_conf.show_nr_samples ? "Samples" : "Percent",
2283 d_filename, evsel_name, h->nr_samples,
2284 percent_type_str(opts->percent_type));
2285
2286 printf("%-*.*s----\n",
2287 graph_dotted_len, graph_dotted_len, graph_dotted_line);
2288
2289 if (verbose > 0)
2290 symbol__annotate_hits(sym, evsel);
2291
2292 addr_fmt_width = annotated_source__addr_fmt_width(&notes->src->source, start);
2293
2294 list_for_each_entry(pos, &notes->src->source, node) {
2295 int err;
2296
2297 if (context && queue == NULL) {
2298 queue = pos;
2299 queue_len = 0;
2300 }
2301
2302 err = annotation_line__print(pos, sym, start, evsel, len,
2303 opts->min_pcnt, printed, opts->max_lines,
2304 queue, addr_fmt_width, opts->percent_type);
2305
2306 switch (err) {
2307 case 0:
2308 ++printed;
2309 if (context) {
2310 printed += queue_len;
2311 queue = NULL;
2312 queue_len = 0;
2313 }
2314 break;
2315 case 1:
2316 /* filtered by max_lines */
2317 ++more;
2318 break;
2319 case -1:
2320 default:
2321 /*
2322 * Filtered by min_pcnt or non IP lines when
2323 * context != 0
2324 */
2325 if (!context)
2326 break;
2327 if (queue_len == context)
2328 queue = list_entry(queue->node.next, typeof(*queue), node);
2329 else
2330 ++queue_len;
2331 break;
2332 }
2333 }
2334
2335 free(filename);
2336
2337 return more;
2338 }
2339
2340 static void FILE__set_percent_color(void *fp __maybe_unused,
2341 double percent __maybe_unused,
2342 bool current __maybe_unused)
2343 {
2344 }
2345
2346 static int FILE__set_jumps_percent_color(void *fp __maybe_unused,
2347 int nr __maybe_unused, bool current __maybe_unused)
2348 {
2349 return 0;
2350 }
2351
2352 static int FILE__set_color(void *fp __maybe_unused, int color __maybe_unused)
2353 {
2354 return 0;
2355 }
2356
2357 static void FILE__printf(void *fp, const char *fmt, ...)
2358 {
2359 va_list args;
2360
2361 va_start(args, fmt);
2362 vfprintf(fp, fmt, args);
2363 va_end(args);
2364 }
2365
2366 static void FILE__write_graph(void *fp, int graph)
2367 {
2368 const char *s;
2369 switch (graph) {
2370
2371 case DARROW_CHAR: s = "↓"; break;
2372 case UARROW_CHAR: s = "↑"; break;
2373 case LARROW_CHAR: s = "←"; break;
2374 case RARROW_CHAR: s = "→"; break;
2375 default: s = "?"; break;
2376 }
2377
2378 fputs(s, fp);
2379 }
2380
2381 static int symbol__annotate_fprintf2(struct symbol *sym, FILE *fp,
2382 struct annotation_options *opts)
2383 {
2384 struct annotation *notes = symbol__annotation(sym);
2385 struct annotation_write_ops wops = {
2386 .first_line = true,
2387 .obj = fp,
2388 .set_color = FILE__set_color,
2389 .set_percent_color = FILE__set_percent_color,
2390 .set_jumps_percent_color = FILE__set_jumps_percent_color,
2391 .printf = FILE__printf,
2392 .write_graph = FILE__write_graph,
2393 };
2394 struct annotation_line *al;
2395
2396 list_for_each_entry(al, &notes->src->source, node) {
2397 if (annotation_line__filter(al, notes))
2398 continue;
2399 annotation_line__write(al, notes, &wops, opts);
2400 fputc('\n', fp);
2401 wops.first_line = false;
2402 }
2403
2404 return 0;
2405 }
2406
2407 int map_symbol__annotation_dump(struct map_symbol *ms, struct perf_evsel *evsel,
2408 struct annotation_options *opts)
2409 {
2410 const char *ev_name = perf_evsel__name(evsel);
2411 char buf[1024];
2412 char *filename;
2413 int err = -1;
2414 FILE *fp;
2415
2416 if (asprintf(&filename, "%s.annotation", ms->sym->name) < 0)
2417 return -1;
2418
2419 fp = fopen(filename, "w");
2420 if (fp == NULL)
2421 goto out_free_filename;
2422
2423 if (perf_evsel__is_group_event(evsel)) {
2424 perf_evsel__group_desc(evsel, buf, sizeof(buf));
2425 ev_name = buf;
2426 }
2427
2428 fprintf(fp, "%s() %s\nEvent: %s\n\n",
2429 ms->sym->name, ms->map->dso->long_name, ev_name);
2430 symbol__annotate_fprintf2(ms->sym, fp, opts);
2431
2432 fclose(fp);
2433 err = 0;
2434 out_free_filename:
2435 free(filename);
2436 return err;
2437 }
2438
2439 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx)
2440 {
2441 struct annotation *notes = symbol__annotation(sym);
2442 struct sym_hist *h = annotation__histogram(notes, evidx);
2443
2444 memset(h, 0, notes->src->sizeof_sym_hist);
2445 }
2446
2447 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx)
2448 {
2449 struct annotation *notes = symbol__annotation(sym);
2450 struct sym_hist *h = annotation__histogram(notes, evidx);
2451 int len = symbol__size(sym), offset;
2452
2453 h->nr_samples = 0;
2454 for (offset = 0; offset < len; ++offset) {
2455 h->addr[offset].nr_samples = h->addr[offset].nr_samples * 7 / 8;
2456 h->nr_samples += h->addr[offset].nr_samples;
2457 }
2458 }
2459
2460 void annotated_source__purge(struct annotated_source *as)
2461 {
2462 struct annotation_line *al, *n;
2463
2464 list_for_each_entry_safe(al, n, &as->source, node) {
2465 list_del(&al->node);
2466 disasm_line__free(disasm_line(al));
2467 }
2468 }
2469
2470 static size_t disasm_line__fprintf(struct disasm_line *dl, FILE *fp)
2471 {
2472 size_t printed;
2473
2474 if (dl->al.offset == -1)
2475 return fprintf(fp, "%s\n", dl->al.line);
2476
2477 printed = fprintf(fp, "%#" PRIx64 " %s", dl->al.offset, dl->ins.name);
2478
2479 if (dl->ops.raw[0] != '\0') {
2480 printed += fprintf(fp, "%.*s %s\n", 6 - (int)printed, " ",
2481 dl->ops.raw);
2482 }
2483
2484 return printed + fprintf(fp, "\n");
2485 }
2486
2487 size_t disasm__fprintf(struct list_head *head, FILE *fp)
2488 {
2489 struct disasm_line *pos;
2490 size_t printed = 0;
2491
2492 list_for_each_entry(pos, head, al.node)
2493 printed += disasm_line__fprintf(pos, fp);
2494
2495 return printed;
2496 }
2497
2498 bool disasm_line__is_valid_local_jump(struct disasm_line *dl, struct symbol *sym)
2499 {
2500 if (!dl || !dl->ins.ops || !ins__is_jump(&dl->ins) ||
2501 !disasm_line__has_local_offset(dl) || dl->ops.target.offset < 0 ||
2502 dl->ops.target.offset >= (s64)symbol__size(sym))
2503 return false;
2504
2505 return true;
2506 }
2507
2508 void annotation__mark_jump_targets(struct annotation *notes, struct symbol *sym)
2509 {
2510 u64 offset, size = symbol__size(sym);
2511
2512 /* PLT symbols contain external offsets */
2513 if (strstr(sym->name, "@plt"))
2514 return;
2515
2516 for (offset = 0; offset < size; ++offset) {
2517 struct annotation_line *al = notes->offsets[offset];
2518 struct disasm_line *dl;
2519
2520 dl = disasm_line(al);
2521
2522 if (!disasm_line__is_valid_local_jump(dl, sym))
2523 continue;
2524
2525 al = notes->offsets[dl->ops.target.offset];
2526
2527 /*
2528 * FIXME: Oops, no jump target? Buggy disassembler? Or do we
2529 * have to adjust to the previous offset?
2530 */
2531 if (al == NULL)
2532 continue;
2533
2534 if (++al->jump_sources > notes->max_jump_sources)
2535 notes->max_jump_sources = al->jump_sources;
2536
2537 ++notes->nr_jumps;
2538 }
2539 }
2540
2541 void annotation__set_offsets(struct annotation *notes, s64 size)
2542 {
2543 struct annotation_line *al;
2544
2545 notes->max_line_len = 0;
2546
2547 list_for_each_entry(al, &notes->src->source, node) {
2548 size_t line_len = strlen(al->line);
2549
2550 if (notes->max_line_len < line_len)
2551 notes->max_line_len = line_len;
2552 al->idx = notes->nr_entries++;
2553 if (al->offset != -1) {
2554 al->idx_asm = notes->nr_asm_entries++;
2555 /*
2556 * FIXME: short term bandaid to cope with assembly
2557 * routines that comes with labels in the same column
2558 * as the address in objdump, sigh.
2559 *
2560 * E.g. copy_user_generic_unrolled
2561 */
2562 if (al->offset < size)
2563 notes->offsets[al->offset] = al;
2564 } else
2565 al->idx_asm = -1;
2566 }
2567 }
2568
2569 static inline int width_jumps(int n)
2570 {
2571 if (n >= 100)
2572 return 5;
2573 if (n / 10)
2574 return 2;
2575 return 1;
2576 }
2577
2578 static int annotation__max_ins_name(struct annotation *notes)
2579 {
2580 int max_name = 0, len;
2581 struct annotation_line *al;
2582
2583 list_for_each_entry(al, &notes->src->source, node) {
2584 if (al->offset == -1)
2585 continue;
2586
2587 len = strlen(disasm_line(al)->ins.name);
2588 if (max_name < len)
2589 max_name = len;
2590 }
2591
2592 return max_name;
2593 }
2594
2595 void annotation__init_column_widths(struct annotation *notes, struct symbol *sym)
2596 {
2597 notes->widths.addr = notes->widths.target =
2598 notes->widths.min_addr = hex_width(symbol__size(sym));
2599 notes->widths.max_addr = hex_width(sym->end);
2600 notes->widths.jumps = width_jumps(notes->max_jump_sources);
2601 notes->widths.max_ins_name = annotation__max_ins_name(notes);
2602 }
2603
2604 void annotation__update_column_widths(struct annotation *notes)
2605 {
2606 if (notes->options->use_offset)
2607 notes->widths.target = notes->widths.min_addr;
2608 else
2609 notes->widths.target = notes->widths.max_addr;
2610
2611 notes->widths.addr = notes->widths.target;
2612
2613 if (notes->options->show_nr_jumps)
2614 notes->widths.addr += notes->widths.jumps + 1;
2615 }
2616
2617 static void annotation__calc_lines(struct annotation *notes, struct map *map,
2618 struct rb_root *root,
2619 struct annotation_options *opts)
2620 {
2621 struct annotation_line *al;
2622 struct rb_root tmp_root = RB_ROOT;
2623
2624 list_for_each_entry(al, &notes->src->source, node) {
2625 double percent_max = 0.0;
2626 int i;
2627
2628 for (i = 0; i < al->data_nr; i++) {
2629 double percent;
2630
2631 percent = annotation_data__percent(&al->data[i],
2632 opts->percent_type);
2633
2634 if (percent > percent_max)
2635 percent_max = percent;
2636 }
2637
2638 if (percent_max <= 0.5)
2639 continue;
2640
2641 al->path = get_srcline(map->dso, notes->start + al->offset, NULL,
2642 false, true, notes->start + al->offset);
2643 insert_source_line(&tmp_root, al, opts);
2644 }
2645
2646 resort_source_line(root, &tmp_root);
2647 }
2648
2649 static void symbol__calc_lines(struct symbol *sym, struct map *map,
2650 struct rb_root *root,
2651 struct annotation_options *opts)
2652 {
2653 struct annotation *notes = symbol__annotation(sym);
2654
2655 annotation__calc_lines(notes, map, root, opts);
2656 }
2657
2658 int symbol__tty_annotate2(struct symbol *sym, struct map *map,
2659 struct perf_evsel *evsel,
2660 struct annotation_options *opts)
2661 {
2662 struct dso *dso = map->dso;
2663 struct rb_root source_line = RB_ROOT;
2664 struct hists *hists = evsel__hists(evsel);
2665 char buf[1024];
2666
2667 if (symbol__annotate2(sym, map, evsel, opts, NULL) < 0)
2668 return -1;
2669
2670 if (opts->print_lines) {
2671 srcline_full_filename = opts->full_path;
2672 symbol__calc_lines(sym, map, &source_line, opts);
2673 print_summary(&source_line, dso->long_name);
2674 }
2675
2676 hists__scnprintf_title(hists, buf, sizeof(buf));
2677 fprintf(stdout, "%s, [percent: %s]\n%s() %s\n",
2678 buf, percent_type_str(opts->percent_type), sym->name, dso->long_name);
2679 symbol__annotate_fprintf2(sym, stdout, opts);
2680
2681 annotated_source__purge(symbol__annotation(sym)->src);
2682
2683 return 0;
2684 }
2685
2686 int symbol__tty_annotate(struct symbol *sym, struct map *map,
2687 struct perf_evsel *evsel,
2688 struct annotation_options *opts)
2689 {
2690 struct dso *dso = map->dso;
2691 struct rb_root source_line = RB_ROOT;
2692
2693 if (symbol__annotate(sym, map, evsel, 0, opts, NULL) < 0)
2694 return -1;
2695
2696 symbol__calc_percent(sym, evsel);
2697
2698 if (opts->print_lines) {
2699 srcline_full_filename = opts->full_path;
2700 symbol__calc_lines(sym, map, &source_line, opts);
2701 print_summary(&source_line, dso->long_name);
2702 }
2703
2704 symbol__annotate_printf(sym, map, evsel, opts);
2705
2706 annotated_source__purge(symbol__annotation(sym)->src);
2707
2708 return 0;
2709 }
2710
2711 bool ui__has_annotation(void)
2712 {
2713 return use_browser == 1 && perf_hpp_list.sym;
2714 }
2715
2716
2717 static double annotation_line__max_percent(struct annotation_line *al,
2718 struct annotation *notes,
2719 unsigned int percent_type)
2720 {
2721 double percent_max = 0.0;
2722 int i;
2723
2724 for (i = 0; i < notes->nr_events; i++) {
2725 double percent;
2726
2727 percent = annotation_data__percent(&al->data[i],
2728 percent_type);
2729
2730 if (percent > percent_max)
2731 percent_max = percent;
2732 }
2733
2734 return percent_max;
2735 }
2736
2737 static void disasm_line__write(struct disasm_line *dl, struct annotation *notes,
2738 void *obj, char *bf, size_t size,
2739 void (*obj__printf)(void *obj, const char *fmt, ...),
2740 void (*obj__write_graph)(void *obj, int graph))
2741 {
2742 if (dl->ins.ops && dl->ins.ops->scnprintf) {
2743 if (ins__is_jump(&dl->ins)) {
2744 bool fwd;
2745
2746 if (dl->ops.target.outside)
2747 goto call_like;
2748 fwd = dl->ops.target.offset > dl->al.offset;
2749 obj__write_graph(obj, fwd ? DARROW_CHAR : UARROW_CHAR);
2750 obj__printf(obj, " ");
2751 } else if (ins__is_call(&dl->ins)) {
2752 call_like:
2753 obj__write_graph(obj, RARROW_CHAR);
2754 obj__printf(obj, " ");
2755 } else if (ins__is_ret(&dl->ins)) {
2756 obj__write_graph(obj, LARROW_CHAR);
2757 obj__printf(obj, " ");
2758 } else {
2759 obj__printf(obj, " ");
2760 }
2761 } else {
2762 obj__printf(obj, " ");
2763 }
2764
2765 disasm_line__scnprintf(dl, bf, size, !notes->options->use_offset, notes->widths.max_ins_name);
2766 }
2767
2768 static void ipc_coverage_string(char *bf, int size, struct annotation *notes)
2769 {
2770 double ipc = 0.0, coverage = 0.0;
2771
2772 if (notes->hit_cycles)
2773 ipc = notes->hit_insn / ((double)notes->hit_cycles);
2774
2775 if (notes->total_insn) {
2776 coverage = notes->cover_insn * 100.0 /
2777 ((double)notes->total_insn);
2778 }
2779
2780 scnprintf(bf, size, "(Average IPC: %.2f, IPC Coverage: %.1f%%)",
2781 ipc, coverage);
2782 }
2783
2784 static void __annotation_line__write(struct annotation_line *al, struct annotation *notes,
2785 bool first_line, bool current_entry, bool change_color, int width,
2786 void *obj, unsigned int percent_type,
2787 int (*obj__set_color)(void *obj, int color),
2788 void (*obj__set_percent_color)(void *obj, double percent, bool current),
2789 int (*obj__set_jumps_percent_color)(void *obj, int nr, bool current),
2790 void (*obj__printf)(void *obj, const char *fmt, ...),
2791 void (*obj__write_graph)(void *obj, int graph))
2792
2793 {
2794 double percent_max = annotation_line__max_percent(al, notes, percent_type);
2795 int pcnt_width = annotation__pcnt_width(notes),
2796 cycles_width = annotation__cycles_width(notes);
2797 bool show_title = false;
2798 char bf[256];
2799 int printed;
2800
2801 if (first_line && (al->offset == -1 || percent_max == 0.0)) {
2802 if (notes->have_cycles) {
2803 if (al->ipc == 0.0 && al->cycles == 0)
2804 show_title = true;
2805 } else
2806 show_title = true;
2807 }
2808
2809 if (al->offset != -1 && percent_max != 0.0) {
2810 int i;
2811
2812 for (i = 0; i < notes->nr_events; i++) {
2813 double percent;
2814
2815 percent = annotation_data__percent(&al->data[i], percent_type);
2816
2817 obj__set_percent_color(obj, percent, current_entry);
2818 if (notes->options->show_total_period) {
2819 obj__printf(obj, "%11" PRIu64 " ", al->data[i].he.period);
2820 } else if (notes->options->show_nr_samples) {
2821 obj__printf(obj, "%6" PRIu64 " ",
2822 al->data[i].he.nr_samples);
2823 } else {
2824 obj__printf(obj, "%6.2f ", percent);
2825 }
2826 }
2827 } else {
2828 obj__set_percent_color(obj, 0, current_entry);
2829
2830 if (!show_title)
2831 obj__printf(obj, "%-*s", pcnt_width, " ");
2832 else {
2833 obj__printf(obj, "%-*s", pcnt_width,
2834 notes->options->show_total_period ? "Period" :
2835 notes->options->show_nr_samples ? "Samples" : "Percent");
2836 }
2837 }
2838
2839 if (notes->have_cycles) {
2840 if (al->ipc)
2841 obj__printf(obj, "%*.2f ", ANNOTATION__IPC_WIDTH - 1, al->ipc);
2842 else if (!show_title)
2843 obj__printf(obj, "%*s", ANNOTATION__IPC_WIDTH, " ");
2844 else
2845 obj__printf(obj, "%*s ", ANNOTATION__IPC_WIDTH - 1, "IPC");
2846
2847 if (!notes->options->show_minmax_cycle) {
2848 if (al->cycles)
2849 obj__printf(obj, "%*" PRIu64 " ",
2850 ANNOTATION__CYCLES_WIDTH - 1, al->cycles);
2851 else if (!show_title)
2852 obj__printf(obj, "%*s",
2853 ANNOTATION__CYCLES_WIDTH, " ");
2854 else
2855 obj__printf(obj, "%*s ",
2856 ANNOTATION__CYCLES_WIDTH - 1,
2857 "Cycle");
2858 } else {
2859 if (al->cycles) {
2860 char str[32];
2861
2862 scnprintf(str, sizeof(str),
2863 "%" PRIu64 "(%" PRIu64 "/%" PRIu64 ")",
2864 al->cycles, al->cycles_min,
2865 al->cycles_max);
2866
2867 obj__printf(obj, "%*s ",
2868 ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
2869 str);
2870 } else if (!show_title)
2871 obj__printf(obj, "%*s",
2872 ANNOTATION__MINMAX_CYCLES_WIDTH,
2873 " ");
2874 else
2875 obj__printf(obj, "%*s ",
2876 ANNOTATION__MINMAX_CYCLES_WIDTH - 1,
2877 "Cycle(min/max)");
2878 }
2879
2880 if (show_title && !*al->line) {
2881 ipc_coverage_string(bf, sizeof(bf), notes);
2882 obj__printf(obj, "%*s", ANNOTATION__AVG_IPC_WIDTH, bf);
2883 }
2884 }
2885
2886 obj__printf(obj, " ");
2887
2888 if (!*al->line)
2889 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width, " ");
2890 else if (al->offset == -1) {
2891 if (al->line_nr && notes->options->show_linenr)
2892 printed = scnprintf(bf, sizeof(bf), "%-*d ", notes->widths.addr + 1, al->line_nr);
2893 else
2894 printed = scnprintf(bf, sizeof(bf), "%-*s ", notes->widths.addr, " ");
2895 obj__printf(obj, bf);
2896 obj__printf(obj, "%-*s", width - printed - pcnt_width - cycles_width + 1, al->line);
2897 } else {
2898 u64 addr = al->offset;
2899 int color = -1;
2900
2901 if (!notes->options->use_offset)
2902 addr += notes->start;
2903
2904 if (!notes->options->use_offset) {
2905 printed = scnprintf(bf, sizeof(bf), "%" PRIx64 ": ", addr);
2906 } else {
2907 if (al->jump_sources &&
2908 notes->options->offset_level >= ANNOTATION__OFFSET_JUMP_TARGETS) {
2909 if (notes->options->show_nr_jumps) {
2910 int prev;
2911 printed = scnprintf(bf, sizeof(bf), "%*d ",
2912 notes->widths.jumps,
2913 al->jump_sources);
2914 prev = obj__set_jumps_percent_color(obj, al->jump_sources,
2915 current_entry);
2916 obj__printf(obj, bf);
2917 obj__set_color(obj, prev);
2918 }
2919 print_addr:
2920 printed = scnprintf(bf, sizeof(bf), "%*" PRIx64 ": ",
2921 notes->widths.target, addr);
2922 } else if (ins__is_call(&disasm_line(al)->ins) &&
2923 notes->options->offset_level >= ANNOTATION__OFFSET_CALL) {
2924 goto print_addr;
2925 } else if (notes->options->offset_level == ANNOTATION__MAX_OFFSET_LEVEL) {
2926 goto print_addr;
2927 } else {
2928 printed = scnprintf(bf, sizeof(bf), "%-*s ",
2929 notes->widths.addr, " ");
2930 }
2931 }
2932
2933 if (change_color)
2934 color = obj__set_color(obj, HE_COLORSET_ADDR);
2935 obj__printf(obj, bf);
2936 if (change_color)
2937 obj__set_color(obj, color);
2938
2939 disasm_line__write(disasm_line(al), notes, obj, bf, sizeof(bf), obj__printf, obj__write_graph);
2940
2941 obj__printf(obj, "%-*s", width - pcnt_width - cycles_width - 3 - printed, bf);
2942 }
2943
2944 }
2945
2946 void annotation_line__write(struct annotation_line *al, struct annotation *notes,
2947 struct annotation_write_ops *wops,
2948 struct annotation_options *opts)
2949 {
2950 __annotation_line__write(al, notes, wops->first_line, wops->current_entry,
2951 wops->change_color, wops->width, wops->obj,
2952 opts->percent_type,
2953 wops->set_color, wops->set_percent_color,
2954 wops->set_jumps_percent_color, wops->printf,
2955 wops->write_graph);
2956 }
2957
2958 int symbol__annotate2(struct symbol *sym, struct map *map, struct perf_evsel *evsel,
2959 struct annotation_options *options, struct arch **parch)
2960 {
2961 struct annotation *notes = symbol__annotation(sym);
2962 size_t size = symbol__size(sym);
2963 int nr_pcnt = 1, err;
2964
2965 notes->offsets = zalloc(size * sizeof(struct annotation_line *));
2966 if (notes->offsets == NULL)
2967 return -1;
2968
2969 if (perf_evsel__is_group_event(evsel))
2970 nr_pcnt = evsel->nr_members;
2971
2972 err = symbol__annotate(sym, map, evsel, 0, options, parch);
2973 if (err)
2974 goto out_free_offsets;
2975
2976 notes->options = options;
2977
2978 symbol__calc_percent(sym, evsel);
2979
2980 annotation__set_offsets(notes, size);
2981 annotation__mark_jump_targets(notes, sym);
2982 annotation__compute_ipc(notes, size);
2983 annotation__init_column_widths(notes, sym);
2984 notes->nr_events = nr_pcnt;
2985
2986 annotation__update_column_widths(notes);
2987 sym->annotate2 = true;
2988
2989 return 0;
2990
2991 out_free_offsets:
2992 zfree(&notes->offsets);
2993 return -1;
2994 }
2995
2996 #define ANNOTATION__CFG(n) \
2997 { .name = #n, .value = &annotation__default_options.n, }
2998
2999 /*
3000 * Keep the entries sorted, they are bsearch'ed
3001 */
3002 static struct annotation_config {
3003 const char *name;
3004 void *value;
3005 } annotation__configs[] = {
3006 ANNOTATION__CFG(hide_src_code),
3007 ANNOTATION__CFG(jump_arrows),
3008 ANNOTATION__CFG(offset_level),
3009 ANNOTATION__CFG(show_linenr),
3010 ANNOTATION__CFG(show_nr_jumps),
3011 ANNOTATION__CFG(show_nr_samples),
3012 ANNOTATION__CFG(show_total_period),
3013 ANNOTATION__CFG(use_offset),
3014 };
3015
3016 #undef ANNOTATION__CFG
3017
3018 static int annotation_config__cmp(const void *name, const void *cfgp)
3019 {
3020 const struct annotation_config *cfg = cfgp;
3021
3022 return strcmp(name, cfg->name);
3023 }
3024
3025 static int annotation__config(const char *var, const char *value,
3026 void *data __maybe_unused)
3027 {
3028 struct annotation_config *cfg;
3029 const char *name;
3030
3031 if (!strstarts(var, "annotate."))
3032 return 0;
3033
3034 name = var + 9;
3035 cfg = bsearch(name, annotation__configs, ARRAY_SIZE(annotation__configs),
3036 sizeof(struct annotation_config), annotation_config__cmp);
3037
3038 if (cfg == NULL)
3039 pr_debug("%s variable unknown, ignoring...", var);
3040 else if (strcmp(var, "annotate.offset_level") == 0) {
3041 perf_config_int(cfg->value, name, value);
3042
3043 if (*(int *)cfg->value > ANNOTATION__MAX_OFFSET_LEVEL)
3044 *(int *)cfg->value = ANNOTATION__MAX_OFFSET_LEVEL;
3045 else if (*(int *)cfg->value < ANNOTATION__MIN_OFFSET_LEVEL)
3046 *(int *)cfg->value = ANNOTATION__MIN_OFFSET_LEVEL;
3047 } else {
3048 *(bool *)cfg->value = perf_config_bool(name, value);
3049 }
3050 return 0;
3051 }
3052
3053 void annotation_config__init(void)
3054 {
3055 perf_config(annotation__config, NULL);
3056
3057 annotation__default_options.show_total_period = symbol_conf.show_total_period;
3058 annotation__default_options.show_nr_samples = symbol_conf.show_nr_samples;
3059 }
3060
3061 static unsigned int parse_percent_type(char *str1, char *str2)
3062 {
3063 unsigned int type = (unsigned int) -1;
3064
3065 if (!strcmp("period", str1)) {
3066 if (!strcmp("local", str2))
3067 type = PERCENT_PERIOD_LOCAL;
3068 else if (!strcmp("global", str2))
3069 type = PERCENT_PERIOD_GLOBAL;
3070 }
3071
3072 if (!strcmp("hits", str1)) {
3073 if (!strcmp("local", str2))
3074 type = PERCENT_HITS_LOCAL;
3075 else if (!strcmp("global", str2))
3076 type = PERCENT_HITS_GLOBAL;
3077 }
3078
3079 return type;
3080 }
3081
3082 int annotate_parse_percent_type(const struct option *opt, const char *_str,
3083 int unset __maybe_unused)
3084 {
3085 struct annotation_options *opts = opt->value;
3086 unsigned int type;
3087 char *str1, *str2;
3088 int err = -1;
3089
3090 str1 = strdup(_str);
3091 if (!str1)
3092 return -ENOMEM;
3093
3094 str2 = strchr(str1, '-');
3095 if (!str2)
3096 goto out;
3097
3098 *str2++ = 0;
3099
3100 type = parse_percent_type(str1, str2);
3101 if (type == (unsigned int) -1)
3102 type = parse_percent_type(str2, str1);
3103 if (type != (unsigned int) -1) {
3104 opts->percent_type = type;
3105 err = 0;
3106 }
3107
3108 out:
3109 free(str1);
3110 return err;
3111 }
Linux with added FPC-III support