2 * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
4 * Parts came from builtin-annotate.c, see those files for further
7 * Released under the GPL v2. (and only v2, not any later version)
22 #include <linux/bitops.h>
24 const char *disassembler_style
;
25 const char *objdump_path
;
26 static regex_t file_lineno
;
28 static struct ins
*ins__find(const char *name
);
29 static int disasm_line__parse(char *line
, char **namep
, char **rawp
);
31 static void ins__delete(struct ins_operands
*ops
)
33 zfree(&ops
->source
.raw
);
34 zfree(&ops
->source
.name
);
35 zfree(&ops
->target
.raw
);
36 zfree(&ops
->target
.name
);
39 static int ins__raw_scnprintf(struct ins
*ins
, char *bf
, size_t size
,
40 struct ins_operands
*ops
)
42 return scnprintf(bf
, size
, "%-6.6s %s", ins
->name
, ops
->raw
);
45 int ins__scnprintf(struct ins
*ins
, char *bf
, size_t size
,
46 struct ins_operands
*ops
)
48 if (ins
->ops
->scnprintf
)
49 return ins
->ops
->scnprintf(ins
, bf
, size
, ops
);
51 return ins__raw_scnprintf(ins
, bf
, size
, ops
);
54 static int call__parse(struct ins_operands
*ops
)
56 char *endptr
, *tok
, *name
;
58 ops
->target
.addr
= strtoull(ops
->raw
, &endptr
, 16);
60 name
= strchr(endptr
, '<');
66 tok
= strchr(name
, '>');
71 ops
->target
.name
= strdup(name
);
74 return ops
->target
.name
== NULL
? -1 : 0;
77 tok
= strchr(endptr
, '(');
83 tok
= strchr(endptr
, '*');
87 ops
->target
.addr
= strtoull(tok
+ 1, NULL
, 16);
91 static int call__scnprintf(struct ins
*ins
, char *bf
, size_t size
,
92 struct ins_operands
*ops
)
95 return scnprintf(bf
, size
, "%-6.6s %s", ins
->name
, ops
->target
.name
);
97 if (ops
->target
.addr
== 0)
98 return ins__raw_scnprintf(ins
, bf
, size
, ops
);
100 return scnprintf(bf
, size
, "%-6.6s *%" PRIx64
, ins
->name
, ops
->target
.addr
);
103 static struct ins_ops call_ops
= {
104 .parse
= call__parse
,
105 .scnprintf
= call__scnprintf
,
108 bool ins__is_call(const struct ins
*ins
)
110 return ins
->ops
== &call_ops
;
113 static int jump__parse(struct ins_operands
*ops
)
115 const char *s
= strchr(ops
->raw
, '+');
117 ops
->target
.addr
= strtoull(ops
->raw
, NULL
, 16);
120 ops
->target
.offset
= strtoull(s
, NULL
, 16);
122 ops
->target
.offset
= UINT64_MAX
;
127 static int jump__scnprintf(struct ins
*ins
, char *bf
, size_t size
,
128 struct ins_operands
*ops
)
130 return scnprintf(bf
, size
, "%-6.6s %" PRIx64
, ins
->name
, ops
->target
.offset
);
133 static struct ins_ops jump_ops
= {
134 .parse
= jump__parse
,
135 .scnprintf
= jump__scnprintf
,
138 bool ins__is_jump(const struct ins
*ins
)
140 return ins
->ops
== &jump_ops
;
143 static int comment__symbol(char *raw
, char *comment
, u64
*addrp
, char **namep
)
145 char *endptr
, *name
, *t
;
147 if (strstr(raw
, "(%rip)") == NULL
)
150 *addrp
= strtoull(comment
, &endptr
, 16);
151 name
= strchr(endptr
, '<');
157 t
= strchr(name
, '>');
162 *namep
= strdup(name
);
168 static int lock__parse(struct ins_operands
*ops
)
172 ops
->locked
.ops
= zalloc(sizeof(*ops
->locked
.ops
));
173 if (ops
->locked
.ops
== NULL
)
176 if (disasm_line__parse(ops
->raw
, &name
, &ops
->locked
.ops
->raw
) < 0)
179 ops
->locked
.ins
= ins__find(name
);
182 if (ops
->locked
.ins
== NULL
)
185 if (!ops
->locked
.ins
->ops
)
188 if (ops
->locked
.ins
->ops
->parse
&&
189 ops
->locked
.ins
->ops
->parse(ops
->locked
.ops
) < 0)
195 zfree(&ops
->locked
.ops
);
199 static int lock__scnprintf(struct ins
*ins
, char *bf
, size_t size
,
200 struct ins_operands
*ops
)
204 if (ops
->locked
.ins
== NULL
)
205 return ins__raw_scnprintf(ins
, bf
, size
, ops
);
207 printed
= scnprintf(bf
, size
, "%-6.6s ", ins
->name
);
208 return printed
+ ins__scnprintf(ops
->locked
.ins
, bf
+ printed
,
209 size
- printed
, ops
->locked
.ops
);
212 static void lock__delete(struct ins_operands
*ops
)
214 struct ins
*ins
= ops
->locked
.ins
;
216 if (ins
&& ins
->ops
->free
)
217 ins
->ops
->free(ops
->locked
.ops
);
219 ins__delete(ops
->locked
.ops
);
221 zfree(&ops
->locked
.ops
);
222 zfree(&ops
->target
.raw
);
223 zfree(&ops
->target
.name
);
226 static struct ins_ops lock_ops
= {
227 .free
= lock__delete
,
228 .parse
= lock__parse
,
229 .scnprintf
= lock__scnprintf
,
232 static int mov__parse(struct ins_operands
*ops
)
234 char *s
= strchr(ops
->raw
, ','), *target
, *comment
, prev
;
240 ops
->source
.raw
= strdup(ops
->raw
);
243 if (ops
->source
.raw
== NULL
)
247 comment
= strchr(s
, '#');
252 s
= strchr(s
, '\0') - 1;
254 while (s
> target
&& isspace(s
[0]))
260 ops
->target
.raw
= strdup(target
);
263 if (ops
->target
.raw
== NULL
)
264 goto out_free_source
;
269 while (comment
[0] != '\0' && isspace(comment
[0]))
272 comment__symbol(ops
->source
.raw
, comment
, &ops
->source
.addr
, &ops
->source
.name
);
273 comment__symbol(ops
->target
.raw
, comment
, &ops
->target
.addr
, &ops
->target
.name
);
278 zfree(&ops
->source
.raw
);
282 static int mov__scnprintf(struct ins
*ins
, char *bf
, size_t size
,
283 struct ins_operands
*ops
)
285 return scnprintf(bf
, size
, "%-6.6s %s,%s", ins
->name
,
286 ops
->source
.name
?: ops
->source
.raw
,
287 ops
->target
.name
?: ops
->target
.raw
);
290 static struct ins_ops mov_ops
= {
292 .scnprintf
= mov__scnprintf
,
295 static int dec__parse(struct ins_operands
*ops
)
297 char *target
, *comment
, *s
, prev
;
299 target
= s
= ops
->raw
;
301 while (s
[0] != '\0' && !isspace(s
[0]))
306 ops
->target
.raw
= strdup(target
);
309 if (ops
->target
.raw
== NULL
)
312 comment
= strchr(s
, '#');
316 while (comment
[0] != '\0' && isspace(comment
[0]))
319 comment__symbol(ops
->target
.raw
, comment
, &ops
->target
.addr
, &ops
->target
.name
);
324 static int dec__scnprintf(struct ins
*ins
, char *bf
, size_t size
,
325 struct ins_operands
*ops
)
327 return scnprintf(bf
, size
, "%-6.6s %s", ins
->name
,
328 ops
->target
.name
?: ops
->target
.raw
);
331 static struct ins_ops dec_ops
= {
333 .scnprintf
= dec__scnprintf
,
336 static int nop__scnprintf(struct ins
*ins __maybe_unused
, char *bf
, size_t size
,
337 struct ins_operands
*ops __maybe_unused
)
339 return scnprintf(bf
, size
, "%-6.6s", "nop");
342 static struct ins_ops nop_ops
= {
343 .scnprintf
= nop__scnprintf
,
347 * Must be sorted by name!
349 static struct ins instructions
[] = {
350 { .name
= "add", .ops
= &mov_ops
, },
351 { .name
= "addl", .ops
= &mov_ops
, },
352 { .name
= "addq", .ops
= &mov_ops
, },
353 { .name
= "addw", .ops
= &mov_ops
, },
354 { .name
= "and", .ops
= &mov_ops
, },
355 { .name
= "bts", .ops
= &mov_ops
, },
356 { .name
= "call", .ops
= &call_ops
, },
357 { .name
= "callq", .ops
= &call_ops
, },
358 { .name
= "cmp", .ops
= &mov_ops
, },
359 { .name
= "cmpb", .ops
= &mov_ops
, },
360 { .name
= "cmpl", .ops
= &mov_ops
, },
361 { .name
= "cmpq", .ops
= &mov_ops
, },
362 { .name
= "cmpw", .ops
= &mov_ops
, },
363 { .name
= "cmpxch", .ops
= &mov_ops
, },
364 { .name
= "dec", .ops
= &dec_ops
, },
365 { .name
= "decl", .ops
= &dec_ops
, },
366 { .name
= "imul", .ops
= &mov_ops
, },
367 { .name
= "inc", .ops
= &dec_ops
, },
368 { .name
= "incl", .ops
= &dec_ops
, },
369 { .name
= "ja", .ops
= &jump_ops
, },
370 { .name
= "jae", .ops
= &jump_ops
, },
371 { .name
= "jb", .ops
= &jump_ops
, },
372 { .name
= "jbe", .ops
= &jump_ops
, },
373 { .name
= "jc", .ops
= &jump_ops
, },
374 { .name
= "jcxz", .ops
= &jump_ops
, },
375 { .name
= "je", .ops
= &jump_ops
, },
376 { .name
= "jecxz", .ops
= &jump_ops
, },
377 { .name
= "jg", .ops
= &jump_ops
, },
378 { .name
= "jge", .ops
= &jump_ops
, },
379 { .name
= "jl", .ops
= &jump_ops
, },
380 { .name
= "jle", .ops
= &jump_ops
, },
381 { .name
= "jmp", .ops
= &jump_ops
, },
382 { .name
= "jmpq", .ops
= &jump_ops
, },
383 { .name
= "jna", .ops
= &jump_ops
, },
384 { .name
= "jnae", .ops
= &jump_ops
, },
385 { .name
= "jnb", .ops
= &jump_ops
, },
386 { .name
= "jnbe", .ops
= &jump_ops
, },
387 { .name
= "jnc", .ops
= &jump_ops
, },
388 { .name
= "jne", .ops
= &jump_ops
, },
389 { .name
= "jng", .ops
= &jump_ops
, },
390 { .name
= "jnge", .ops
= &jump_ops
, },
391 { .name
= "jnl", .ops
= &jump_ops
, },
392 { .name
= "jnle", .ops
= &jump_ops
, },
393 { .name
= "jno", .ops
= &jump_ops
, },
394 { .name
= "jnp", .ops
= &jump_ops
, },
395 { .name
= "jns", .ops
= &jump_ops
, },
396 { .name
= "jnz", .ops
= &jump_ops
, },
397 { .name
= "jo", .ops
= &jump_ops
, },
398 { .name
= "jp", .ops
= &jump_ops
, },
399 { .name
= "jpe", .ops
= &jump_ops
, },
400 { .name
= "jpo", .ops
= &jump_ops
, },
401 { .name
= "jrcxz", .ops
= &jump_ops
, },
402 { .name
= "js", .ops
= &jump_ops
, },
403 { .name
= "jz", .ops
= &jump_ops
, },
404 { .name
= "lea", .ops
= &mov_ops
, },
405 { .name
= "lock", .ops
= &lock_ops
, },
406 { .name
= "mov", .ops
= &mov_ops
, },
407 { .name
= "movb", .ops
= &mov_ops
, },
408 { .name
= "movdqa",.ops
= &mov_ops
, },
409 { .name
= "movl", .ops
= &mov_ops
, },
410 { .name
= "movq", .ops
= &mov_ops
, },
411 { .name
= "movslq", .ops
= &mov_ops
, },
412 { .name
= "movzbl", .ops
= &mov_ops
, },
413 { .name
= "movzwl", .ops
= &mov_ops
, },
414 { .name
= "nop", .ops
= &nop_ops
, },
415 { .name
= "nopl", .ops
= &nop_ops
, },
416 { .name
= "nopw", .ops
= &nop_ops
, },
417 { .name
= "or", .ops
= &mov_ops
, },
418 { .name
= "orl", .ops
= &mov_ops
, },
419 { .name
= "test", .ops
= &mov_ops
, },
420 { .name
= "testb", .ops
= &mov_ops
, },
421 { .name
= "testl", .ops
= &mov_ops
, },
422 { .name
= "xadd", .ops
= &mov_ops
, },
423 { .name
= "xbeginl", .ops
= &jump_ops
, },
424 { .name
= "xbeginq", .ops
= &jump_ops
, },
427 static int ins__cmp(const void *name
, const void *insp
)
429 const struct ins
*ins
= insp
;
431 return strcmp(name
, ins
->name
);
434 static struct ins
*ins__find(const char *name
)
436 const int nmemb
= ARRAY_SIZE(instructions
);
438 return bsearch(name
, instructions
, nmemb
, sizeof(struct ins
), ins__cmp
);
441 int symbol__annotate_init(struct map
*map __maybe_unused
, struct symbol
*sym
)
443 struct annotation
*notes
= symbol__annotation(sym
);
444 pthread_mutex_init(¬es
->lock
, NULL
);
448 int symbol__alloc_hist(struct symbol
*sym
)
450 struct annotation
*notes
= symbol__annotation(sym
);
451 const size_t size
= symbol__size(sym
);
452 size_t sizeof_sym_hist
;
454 /* Check for overflow when calculating sizeof_sym_hist */
455 if (size
> (SIZE_MAX
- sizeof(struct sym_hist
)) / sizeof(u64
))
458 sizeof_sym_hist
= (sizeof(struct sym_hist
) + size
* sizeof(u64
));
460 /* Check for overflow in zalloc argument */
461 if (sizeof_sym_hist
> (SIZE_MAX
- sizeof(*notes
->src
))
462 / symbol_conf
.nr_events
)
465 notes
->src
= zalloc(sizeof(*notes
->src
) + symbol_conf
.nr_events
* sizeof_sym_hist
);
466 if (notes
->src
== NULL
)
468 notes
->src
->sizeof_sym_hist
= sizeof_sym_hist
;
469 notes
->src
->nr_histograms
= symbol_conf
.nr_events
;
470 INIT_LIST_HEAD(¬es
->src
->source
);
474 void symbol__annotate_zero_histograms(struct symbol
*sym
)
476 struct annotation
*notes
= symbol__annotation(sym
);
478 pthread_mutex_lock(¬es
->lock
);
479 if (notes
->src
!= NULL
)
480 memset(notes
->src
->histograms
, 0,
481 notes
->src
->nr_histograms
* notes
->src
->sizeof_sym_hist
);
482 pthread_mutex_unlock(¬es
->lock
);
485 static int __symbol__inc_addr_samples(struct symbol
*sym
, struct map
*map
,
486 struct annotation
*notes
, int evidx
, u64 addr
)
491 pr_debug3("%s: addr=%#" PRIx64
"\n", __func__
, map
->unmap_ip(map
, addr
));
493 if (addr
< sym
->start
|| addr
>= sym
->end
)
496 offset
= addr
- sym
->start
;
497 h
= annotation__histogram(notes
, evidx
);
501 pr_debug3("%#" PRIx64
" %s: period++ [addr: %#" PRIx64
", %#" PRIx64
502 ", evidx=%d] => %" PRIu64
"\n", sym
->start
, sym
->name
,
503 addr
, addr
- sym
->start
, evidx
, h
->addr
[offset
]);
507 static int symbol__inc_addr_samples(struct symbol
*sym
, struct map
*map
,
510 struct annotation
*notes
;
515 notes
= symbol__annotation(sym
);
516 if (notes
->src
== NULL
) {
517 if (symbol__alloc_hist(sym
) < 0)
521 return __symbol__inc_addr_samples(sym
, map
, notes
, evidx
, addr
);
524 int addr_map_symbol__inc_samples(struct addr_map_symbol
*ams
, int evidx
)
526 return symbol__inc_addr_samples(ams
->sym
, ams
->map
, evidx
, ams
->al_addr
);
529 int hist_entry__inc_addr_samples(struct hist_entry
*he
, int evidx
, u64 ip
)
531 return symbol__inc_addr_samples(he
->ms
.sym
, he
->ms
.map
, evidx
, ip
);
534 static void disasm_line__init_ins(struct disasm_line
*dl
)
536 dl
->ins
= ins__find(dl
->name
);
544 if (dl
->ins
->ops
->parse
&& dl
->ins
->ops
->parse(&dl
->ops
) < 0)
548 static int disasm_line__parse(char *line
, char **namep
, char **rawp
)
550 char *name
= line
, tmp
;
552 while (isspace(name
[0]))
560 while ((*rawp
)[0] != '\0' && !isspace((*rawp
)[0]))
565 *namep
= strdup(name
);
572 if ((*rawp
)[0] != '\0') {
574 while (isspace((*rawp
)[0]))
585 static struct disasm_line
*disasm_line__new(s64 offset
, char *line
,
586 size_t privsize
, int line_nr
)
588 struct disasm_line
*dl
= zalloc(sizeof(*dl
) + privsize
);
592 dl
->line
= strdup(line
);
593 dl
->line_nr
= line_nr
;
594 if (dl
->line
== NULL
)
598 if (disasm_line__parse(dl
->line
, &dl
->name
, &dl
->ops
.raw
) < 0)
601 disasm_line__init_ins(dl
);
614 void disasm_line__free(struct disasm_line
*dl
)
618 if (dl
->ins
&& dl
->ins
->ops
->free
)
619 dl
->ins
->ops
->free(&dl
->ops
);
621 ins__delete(&dl
->ops
);
625 int disasm_line__scnprintf(struct disasm_line
*dl
, char *bf
, size_t size
, bool raw
)
628 return scnprintf(bf
, size
, "%-6.6s %s", dl
->name
, dl
->ops
.raw
);
630 return ins__scnprintf(dl
->ins
, bf
, size
, &dl
->ops
);
633 static void disasm__add(struct list_head
*head
, struct disasm_line
*line
)
635 list_add_tail(&line
->node
, head
);
638 struct disasm_line
*disasm__get_next_ip_line(struct list_head
*head
, struct disasm_line
*pos
)
640 list_for_each_entry_continue(pos
, head
, node
)
641 if (pos
->offset
>= 0)
647 double disasm__calc_percent(struct annotation
*notes
, int evidx
, s64 offset
,
648 s64 end
, const char **path
)
650 struct source_line
*src_line
= notes
->src
->lines
;
651 double percent
= 0.0;
654 size_t sizeof_src_line
= sizeof(*src_line
) +
655 sizeof(src_line
->p
) * (src_line
->nr_pcnt
- 1);
657 while (offset
< end
) {
658 src_line
= (void *)notes
->src
->lines
+
659 (sizeof_src_line
* offset
);
662 *path
= src_line
->path
;
664 percent
+= src_line
->p
[evidx
].percent
;
668 struct sym_hist
*h
= annotation__histogram(notes
, evidx
);
669 unsigned int hits
= 0;
672 hits
+= h
->addr
[offset
++];
675 percent
= 100.0 * hits
/ h
->sum
;
681 static int disasm_line__print(struct disasm_line
*dl
, struct symbol
*sym
, u64 start
,
682 struct perf_evsel
*evsel
, u64 len
, int min_pcnt
, int printed
,
683 int max_lines
, struct disasm_line
*queue
)
685 static const char *prev_line
;
686 static const char *prev_color
;
688 if (dl
->offset
!= -1) {
689 const char *path
= NULL
;
690 double percent
, max_percent
= 0.0;
691 double *ppercents
= &percent
;
692 int i
, nr_percent
= 1;
694 struct annotation
*notes
= symbol__annotation(sym
);
695 s64 offset
= dl
->offset
;
696 const u64 addr
= start
+ offset
;
697 struct disasm_line
*next
;
699 next
= disasm__get_next_ip_line(¬es
->src
->source
, dl
);
701 if (perf_evsel__is_group_event(evsel
)) {
702 nr_percent
= evsel
->nr_members
;
703 ppercents
= calloc(nr_percent
, sizeof(double));
704 if (ppercents
== NULL
)
708 for (i
= 0; i
< nr_percent
; i
++) {
709 percent
= disasm__calc_percent(notes
,
710 notes
->src
->lines
? i
: evsel
->idx
+ i
,
712 next
? next
->offset
: (s64
) len
,
715 ppercents
[i
] = percent
;
716 if (percent
> max_percent
)
717 max_percent
= percent
;
720 if (max_percent
< min_pcnt
)
723 if (max_lines
&& printed
>= max_lines
)
727 list_for_each_entry_from(queue
, ¬es
->src
->source
, node
) {
730 disasm_line__print(queue
, sym
, start
, evsel
, len
,
735 color
= get_percent_color(max_percent
);
738 * Also color the filename and line if needed, with
739 * the same color than the percentage. Don't print it
740 * twice for close colored addr with the same filename:line
743 if (!prev_line
|| strcmp(prev_line
, path
)
744 || color
!= prev_color
) {
745 color_fprintf(stdout
, color
, " %s", path
);
751 for (i
= 0; i
< nr_percent
; i
++) {
752 percent
= ppercents
[i
];
753 color
= get_percent_color(percent
);
754 color_fprintf(stdout
, color
, " %7.2f", percent
);
758 color_fprintf(stdout
, PERF_COLOR_MAGENTA
, " %" PRIx64
":", addr
);
759 color_fprintf(stdout
, PERF_COLOR_BLUE
, "%s\n", dl
->line
);
761 if (ppercents
!= &percent
)
764 } else if (max_lines
&& printed
>= max_lines
)
772 if (perf_evsel__is_group_event(evsel
))
773 width
*= evsel
->nr_members
;
776 printf(" %*s:\n", width
, " ");
778 printf(" %*s: %s\n", width
, " ", dl
->line
);
785 * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw)
786 * which looks like following
788 * 0000000000415500 <_init>:
789 * 415500: sub $0x8,%rsp
790 * 415504: mov 0x2f5ad5(%rip),%rax # 70afe0 <_DYNAMIC+0x2f8>
791 * 41550b: test %rax,%rax
792 * 41550e: je 415515 <_init+0x15>
793 * 415510: callq 416e70 <__gmon_start__@plt>
794 * 415515: add $0x8,%rsp
797 * it will be parsed and saved into struct disasm_line as
798 * <offset> <name> <ops.raw>
800 * The offset will be a relative offset from the start of the symbol and -1
801 * means that it's not a disassembly line so should be treated differently.
802 * The ops.raw part will be parsed further according to type of the instruction.
804 static int symbol__parse_objdump_line(struct symbol
*sym
, struct map
*map
,
805 FILE *file
, size_t privsize
,
808 struct annotation
*notes
= symbol__annotation(sym
);
809 struct disasm_line
*dl
;
810 char *line
= NULL
, *parsed_line
, *tmp
, *tmp2
, *c
;
812 s64 line_ip
, offset
= -1;
815 if (getline(&line
, &line_len
, file
) < 0)
821 while (line_len
!= 0 && isspace(line
[line_len
- 1]))
822 line
[--line_len
] = '\0';
824 c
= strchr(line
, '\n');
831 /* /filename:linenr ? Save line number and ignore. */
832 if (regexec(&file_lineno
, line
, 2, match
, 0) == 0) {
833 *line_nr
= atoi(line
+ match
[1].rm_so
);
838 * Strip leading spaces:
849 * Parse hexa addresses followed by ':'
851 line_ip
= strtoull(tmp
, &tmp2
, 16);
852 if (*tmp2
!= ':' || tmp
== tmp2
|| tmp2
[1] == '\0')
857 u64 start
= map__rip_2objdump(map
, sym
->start
),
858 end
= map__rip_2objdump(map
, sym
->end
);
860 offset
= line_ip
- start
;
861 if ((u64
)line_ip
< start
|| (u64
)line_ip
>= end
)
864 parsed_line
= tmp2
+ 1;
867 dl
= disasm_line__new(offset
, parsed_line
, privsize
, *line_nr
);
874 if (dl
->ops
.target
.offset
== UINT64_MAX
)
875 dl
->ops
.target
.offset
= dl
->ops
.target
.addr
-
876 map__rip_2objdump(map
, sym
->start
);
878 /* kcore has no symbols, so add the call target name */
879 if (dl
->ins
&& ins__is_call(dl
->ins
) && !dl
->ops
.target
.name
) {
880 struct addr_map_symbol target
= {
882 .addr
= dl
->ops
.target
.addr
,
885 if (!map_groups__find_ams(&target
, NULL
) &&
886 target
.sym
->start
== target
.al_addr
)
887 dl
->ops
.target
.name
= strdup(target
.sym
->name
);
890 disasm__add(¬es
->src
->source
, dl
);
895 static __attribute__((constructor
)) void symbol__init_regexpr(void)
897 regcomp(&file_lineno
, "^/[^:]+:([0-9]+)", REG_EXTENDED
);
900 static void delete_last_nop(struct symbol
*sym
)
902 struct annotation
*notes
= symbol__annotation(sym
);
903 struct list_head
*list
= ¬es
->src
->source
;
904 struct disasm_line
*dl
;
906 while (!list_empty(list
)) {
907 dl
= list_entry(list
->prev
, struct disasm_line
, node
);
909 if (dl
->ins
&& dl
->ins
->ops
) {
910 if (dl
->ins
->ops
!= &nop_ops
)
913 if (!strstr(dl
->line
, " nop ") &&
914 !strstr(dl
->line
, " nopl ") &&
915 !strstr(dl
->line
, " nopw "))
920 disasm_line__free(dl
);
924 int symbol__annotate(struct symbol
*sym
, struct map
*map
, size_t privsize
)
926 struct dso
*dso
= map
->dso
;
927 char *filename
= dso__build_id_filename(dso
, NULL
, 0);
928 bool free_filename
= true;
929 char command
[PATH_MAX
* 2];
932 char symfs_filename
[PATH_MAX
];
933 struct kcore_extract kce
;
934 bool delete_extract
= false;
938 symbol__join_symfs(symfs_filename
, filename
);
940 if (filename
== NULL
) {
941 if (dso
->has_build_id
) {
942 pr_err("Can't annotate %s: not enough memory\n",
947 } else if (dso__is_kcore(dso
)) {
949 } else if (readlink(symfs_filename
, command
, sizeof(command
)) < 0 ||
950 strstr(command
, "[kernel.kallsyms]") ||
951 access(symfs_filename
, R_OK
)) {
955 * If we don't have build-ids or the build-id file isn't in the
956 * cache, or is just a kallsyms file, well, lets hope that this
957 * DSO is the same as when 'perf record' ran.
959 filename
= (char *)dso
->long_name
;
960 symbol__join_symfs(symfs_filename
, filename
);
961 free_filename
= false;
964 if (dso
->symtab_type
== DSO_BINARY_TYPE__KALLSYMS
&&
965 !dso__is_kcore(dso
)) {
966 char bf
[BUILD_ID_SIZE
* 2 + 16] = " with build id ";
967 char *build_id_msg
= NULL
;
969 if (dso
->annotate_warned
)
970 goto out_free_filename
;
972 if (dso
->has_build_id
) {
973 build_id__sprintf(dso
->build_id
,
974 sizeof(dso
->build_id
), bf
+ 15);
978 dso
->annotate_warned
= 1;
979 pr_err("Can't annotate %s:\n\n"
980 "No vmlinux file%s\nwas found in the path.\n\n"
982 " perf buildid-cache -vu vmlinux\n\n"
984 " --vmlinux vmlinux\n",
985 sym
->name
, build_id_msg
?: "");
986 goto out_free_filename
;
989 pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64
", end=%#" PRIx64
"\n", __func__
,
990 filename
, sym
->name
, map
->unmap_ip(map
, sym
->start
),
991 map
->unmap_ip(map
, sym
->end
));
993 pr_debug("annotating [%p] %30s : [%p] %30s\n",
994 dso
, dso
->long_name
, sym
, sym
->name
);
996 if (dso__is_kcore(dso
)) {
997 kce
.kcore_filename
= symfs_filename
;
998 kce
.addr
= map__rip_2objdump(map
, sym
->start
);
999 kce
.offs
= sym
->start
;
1000 kce
.len
= sym
->end
- sym
->start
;
1001 if (!kcore_extract__create(&kce
)) {
1002 delete_extract
= true;
1003 strlcpy(symfs_filename
, kce
.extract_filename
,
1004 sizeof(symfs_filename
));
1005 if (free_filename
) {
1007 free_filename
= false;
1009 filename
= symfs_filename
;
1013 snprintf(command
, sizeof(command
),
1014 "%s %s%s --start-address=0x%016" PRIx64
1015 " --stop-address=0x%016" PRIx64
1016 " -l -d %s %s -C %s 2>/dev/null|grep -v %s|expand",
1017 objdump_path
? objdump_path
: "objdump",
1018 disassembler_style
? "-M " : "",
1019 disassembler_style
? disassembler_style
: "",
1020 map__rip_2objdump(map
, sym
->start
),
1021 map__rip_2objdump(map
, sym
->end
),
1022 symbol_conf
.annotate_asm_raw
? "" : "--no-show-raw",
1023 symbol_conf
.annotate_src
? "-S" : "",
1024 symfs_filename
, filename
);
1026 pr_debug("Executing: %s\n", command
);
1028 file
= popen(command
, "r");
1030 goto out_free_filename
;
1033 if (symbol__parse_objdump_line(sym
, map
, file
, privsize
,
1038 * kallsyms does not have symbol sizes so there may a nop at the end.
1041 if (dso__is_kcore(dso
))
1042 delete_last_nop(sym
);
1047 kcore_extract__delete(&kce
);
1053 static void insert_source_line(struct rb_root
*root
, struct source_line
*src_line
)
1055 struct source_line
*iter
;
1056 struct rb_node
**p
= &root
->rb_node
;
1057 struct rb_node
*parent
= NULL
;
1060 while (*p
!= NULL
) {
1062 iter
= rb_entry(parent
, struct source_line
, node
);
1064 ret
= strcmp(iter
->path
, src_line
->path
);
1066 for (i
= 0; i
< src_line
->nr_pcnt
; i
++)
1067 iter
->p
[i
].percent_sum
+= src_line
->p
[i
].percent
;
1074 p
= &(*p
)->rb_right
;
1077 for (i
= 0; i
< src_line
->nr_pcnt
; i
++)
1078 src_line
->p
[i
].percent_sum
= src_line
->p
[i
].percent
;
1080 rb_link_node(&src_line
->node
, parent
, p
);
1081 rb_insert_color(&src_line
->node
, root
);
1084 static int cmp_source_line(struct source_line
*a
, struct source_line
*b
)
1088 for (i
= 0; i
< a
->nr_pcnt
; i
++) {
1089 if (a
->p
[i
].percent_sum
== b
->p
[i
].percent_sum
)
1091 return a
->p
[i
].percent_sum
> b
->p
[i
].percent_sum
;
1097 static void __resort_source_line(struct rb_root
*root
, struct source_line
*src_line
)
1099 struct source_line
*iter
;
1100 struct rb_node
**p
= &root
->rb_node
;
1101 struct rb_node
*parent
= NULL
;
1103 while (*p
!= NULL
) {
1105 iter
= rb_entry(parent
, struct source_line
, node
);
1107 if (cmp_source_line(src_line
, iter
))
1110 p
= &(*p
)->rb_right
;
1113 rb_link_node(&src_line
->node
, parent
, p
);
1114 rb_insert_color(&src_line
->node
, root
);
1117 static void resort_source_line(struct rb_root
*dest_root
, struct rb_root
*src_root
)
1119 struct source_line
*src_line
;
1120 struct rb_node
*node
;
1122 node
= rb_first(src_root
);
1124 struct rb_node
*next
;
1126 src_line
= rb_entry(node
, struct source_line
, node
);
1127 next
= rb_next(node
);
1128 rb_erase(node
, src_root
);
1130 __resort_source_line(dest_root
, src_line
);
1135 static void symbol__free_source_line(struct symbol
*sym
, int len
)
1137 struct annotation
*notes
= symbol__annotation(sym
);
1138 struct source_line
*src_line
= notes
->src
->lines
;
1139 size_t sizeof_src_line
;
1142 sizeof_src_line
= sizeof(*src_line
) +
1143 (sizeof(src_line
->p
) * (src_line
->nr_pcnt
- 1));
1145 for (i
= 0; i
< len
; i
++) {
1146 free_srcline(src_line
->path
);
1147 src_line
= (void *)src_line
+ sizeof_src_line
;
1150 zfree(¬es
->src
->lines
);
1153 /* Get the filename:line for the colored entries */
1154 static int symbol__get_source_line(struct symbol
*sym
, struct map
*map
,
1155 struct perf_evsel
*evsel
,
1156 struct rb_root
*root
, int len
)
1160 int evidx
= evsel
->idx
;
1161 struct source_line
*src_line
;
1162 struct annotation
*notes
= symbol__annotation(sym
);
1163 struct sym_hist
*h
= annotation__histogram(notes
, evidx
);
1164 struct rb_root tmp_root
= RB_ROOT
;
1167 size_t sizeof_src_line
= sizeof(struct source_line
);
1169 if (perf_evsel__is_group_event(evsel
)) {
1170 for (i
= 1; i
< evsel
->nr_members
; i
++) {
1171 h
= annotation__histogram(notes
, evidx
+ i
);
1174 nr_pcnt
= evsel
->nr_members
;
1175 sizeof_src_line
+= (nr_pcnt
- 1) * sizeof(src_line
->p
);
1181 src_line
= notes
->src
->lines
= calloc(len
, sizeof_src_line
);
1182 if (!notes
->src
->lines
)
1185 start
= map__rip_2objdump(map
, sym
->start
);
1187 for (i
= 0; i
< len
; i
++) {
1189 double percent_max
= 0.0;
1191 src_line
->nr_pcnt
= nr_pcnt
;
1193 for (k
= 0; k
< nr_pcnt
; k
++) {
1194 h
= annotation__histogram(notes
, evidx
+ k
);
1195 src_line
->p
[k
].percent
= 100.0 * h
->addr
[i
] / h
->sum
;
1197 if (src_line
->p
[k
].percent
> percent_max
)
1198 percent_max
= src_line
->p
[k
].percent
;
1201 if (percent_max
<= 0.5)
1205 src_line
->path
= get_srcline(map
->dso
, offset
, NULL
, false);
1206 insert_source_line(&tmp_root
, src_line
);
1209 src_line
= (void *)src_line
+ sizeof_src_line
;
1212 resort_source_line(root
, &tmp_root
);
1216 static void print_summary(struct rb_root
*root
, const char *filename
)
1218 struct source_line
*src_line
;
1219 struct rb_node
*node
;
1221 printf("\nSorted summary for file %s\n", filename
);
1222 printf("----------------------------------------------\n\n");
1224 if (RB_EMPTY_ROOT(root
)) {
1225 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN
);
1229 node
= rb_first(root
);
1231 double percent
, percent_max
= 0.0;
1236 src_line
= rb_entry(node
, struct source_line
, node
);
1237 for (i
= 0; i
< src_line
->nr_pcnt
; i
++) {
1238 percent
= src_line
->p
[i
].percent_sum
;
1239 color
= get_percent_color(percent
);
1240 color_fprintf(stdout
, color
, " %7.2f", percent
);
1242 if (percent
> percent_max
)
1243 percent_max
= percent
;
1246 path
= src_line
->path
;
1247 color
= get_percent_color(percent_max
);
1248 color_fprintf(stdout
, color
, " %s\n", path
);
1250 node
= rb_next(node
);
1254 static void symbol__annotate_hits(struct symbol
*sym
, struct perf_evsel
*evsel
)
1256 struct annotation
*notes
= symbol__annotation(sym
);
1257 struct sym_hist
*h
= annotation__histogram(notes
, evsel
->idx
);
1258 u64 len
= symbol__size(sym
), offset
;
1260 for (offset
= 0; offset
< len
; ++offset
)
1261 if (h
->addr
[offset
] != 0)
1262 printf("%*" PRIx64
": %" PRIu64
"\n", BITS_PER_LONG
/ 2,
1263 sym
->start
+ offset
, h
->addr
[offset
]);
1264 printf("%*s: %" PRIu64
"\n", BITS_PER_LONG
/ 2, "h->sum", h
->sum
);
1267 int symbol__annotate_printf(struct symbol
*sym
, struct map
*map
,
1268 struct perf_evsel
*evsel
, bool full_paths
,
1269 int min_pcnt
, int max_lines
, int context
)
1271 struct dso
*dso
= map
->dso
;
1273 const char *d_filename
;
1274 const char *evsel_name
= perf_evsel__name(evsel
);
1275 struct annotation
*notes
= symbol__annotation(sym
);
1276 struct disasm_line
*pos
, *queue
= NULL
;
1277 u64 start
= map__rip_2objdump(map
, sym
->start
);
1278 int printed
= 2, queue_len
= 0;
1282 int namelen
, evsel_name_len
, graph_dotted_len
;
1284 filename
= strdup(dso
->long_name
);
1289 d_filename
= filename
;
1291 d_filename
= basename(filename
);
1293 len
= symbol__size(sym
);
1294 namelen
= strlen(d_filename
);
1295 evsel_name_len
= strlen(evsel_name
);
1297 if (perf_evsel__is_group_event(evsel
))
1298 width
*= evsel
->nr_members
;
1300 printf(" %-*.*s| Source code & Disassembly of %s for %s\n",
1301 width
, width
, "Percent", d_filename
, evsel_name
);
1303 graph_dotted_len
= width
+ namelen
+ evsel_name_len
;
1304 printf("-%-*.*s-----------------------------------------\n",
1305 graph_dotted_len
, graph_dotted_len
, graph_dotted_line
);
1308 symbol__annotate_hits(sym
, evsel
);
1310 list_for_each_entry(pos
, ¬es
->src
->source
, node
) {
1311 if (context
&& queue
== NULL
) {
1316 switch (disasm_line__print(pos
, sym
, start
, evsel
, len
,
1317 min_pcnt
, printed
, max_lines
,
1322 printed
+= queue_len
;
1328 /* filtered by max_lines */
1334 * Filtered by min_pcnt or non IP lines when
1339 if (queue_len
== context
)
1340 queue
= list_entry(queue
->node
.next
, typeof(*queue
), node
);
1352 void symbol__annotate_zero_histogram(struct symbol
*sym
, int evidx
)
1354 struct annotation
*notes
= symbol__annotation(sym
);
1355 struct sym_hist
*h
= annotation__histogram(notes
, evidx
);
1357 memset(h
, 0, notes
->src
->sizeof_sym_hist
);
1360 void symbol__annotate_decay_histogram(struct symbol
*sym
, int evidx
)
1362 struct annotation
*notes
= symbol__annotation(sym
);
1363 struct sym_hist
*h
= annotation__histogram(notes
, evidx
);
1364 int len
= symbol__size(sym
), offset
;
1367 for (offset
= 0; offset
< len
; ++offset
) {
1368 h
->addr
[offset
] = h
->addr
[offset
] * 7 / 8;
1369 h
->sum
+= h
->addr
[offset
];
1373 void disasm__purge(struct list_head
*head
)
1375 struct disasm_line
*pos
, *n
;
1377 list_for_each_entry_safe(pos
, n
, head
, node
) {
1378 list_del(&pos
->node
);
1379 disasm_line__free(pos
);
1383 static size_t disasm_line__fprintf(struct disasm_line
*dl
, FILE *fp
)
1387 if (dl
->offset
== -1)
1388 return fprintf(fp
, "%s\n", dl
->line
);
1390 printed
= fprintf(fp
, "%#" PRIx64
" %s", dl
->offset
, dl
->name
);
1392 if (dl
->ops
.raw
[0] != '\0') {
1393 printed
+= fprintf(fp
, "%.*s %s\n", 6 - (int)printed
, " ",
1397 return printed
+ fprintf(fp
, "\n");
1400 size_t disasm__fprintf(struct list_head
*head
, FILE *fp
)
1402 struct disasm_line
*pos
;
1405 list_for_each_entry(pos
, head
, node
)
1406 printed
+= disasm_line__fprintf(pos
, fp
);
1411 int symbol__tty_annotate(struct symbol
*sym
, struct map
*map
,
1412 struct perf_evsel
*evsel
, bool print_lines
,
1413 bool full_paths
, int min_pcnt
, int max_lines
)
1415 struct dso
*dso
= map
->dso
;
1416 struct rb_root source_line
= RB_ROOT
;
1419 if (symbol__annotate(sym
, map
, 0) < 0)
1422 len
= symbol__size(sym
);
1425 symbol__get_source_line(sym
, map
, evsel
, &source_line
, len
);
1426 print_summary(&source_line
, dso
->long_name
);
1429 symbol__annotate_printf(sym
, map
, evsel
, full_paths
,
1430 min_pcnt
, max_lines
, 0);
1432 symbol__free_source_line(sym
, len
);
1434 disasm__purge(&symbol__annotation(sym
)->src
->source
);
1439 int hist_entry__annotate(struct hist_entry
*he
, size_t privsize
)
1441 return symbol__annotate(he
->ms
.sym
, he
->ms
.map
, privsize
);
1444 bool ui__has_annotation(void)
1446 return use_browser
== 1 && sort__has_sym
;