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)
19 #include <linux/bitops.h>
21 const char *disassembler_style
;
22 const char *objdump_path
;
24 static struct ins
*ins__find(const char *name
);
25 static int disasm_line__parse(char *line
, char **namep
, char **rawp
);
27 static void ins__delete(struct ins_operands
*ops
)
29 free(ops
->source
.raw
);
30 free(ops
->source
.name
);
31 free(ops
->target
.raw
);
32 free(ops
->target
.name
);
35 static int ins__raw_scnprintf(struct ins
*ins
, char *bf
, size_t size
,
36 struct ins_operands
*ops
)
38 return scnprintf(bf
, size
, "%-6.6s %s", ins
->name
, ops
->raw
);
41 int ins__scnprintf(struct ins
*ins
, char *bf
, size_t size
,
42 struct ins_operands
*ops
)
44 if (ins
->ops
->scnprintf
)
45 return ins
->ops
->scnprintf(ins
, bf
, size
, ops
);
47 return ins__raw_scnprintf(ins
, bf
, size
, ops
);
50 static int call__parse(struct ins_operands
*ops
)
52 char *endptr
, *tok
, *name
;
54 ops
->target
.addr
= strtoull(ops
->raw
, &endptr
, 16);
56 name
= strchr(endptr
, '<');
62 tok
= strchr(name
, '>');
67 ops
->target
.name
= strdup(name
);
70 return ops
->target
.name
== NULL
? -1 : 0;
73 tok
= strchr(endptr
, '(');
79 tok
= strchr(endptr
, '*');
83 ops
->target
.addr
= strtoull(tok
+ 1, NULL
, 16);
87 static int call__scnprintf(struct ins
*ins
, char *bf
, size_t size
,
88 struct ins_operands
*ops
)
91 return scnprintf(bf
, size
, "%-6.6s %s", ins
->name
, ops
->target
.name
);
93 if (ops
->target
.addr
== 0)
94 return ins__raw_scnprintf(ins
, bf
, size
, ops
);
96 return scnprintf(bf
, size
, "%-6.6s *%" PRIx64
, ins
->name
, ops
->target
.addr
);
99 static struct ins_ops call_ops
= {
100 .parse
= call__parse
,
101 .scnprintf
= call__scnprintf
,
104 bool ins__is_call(const struct ins
*ins
)
106 return ins
->ops
== &call_ops
;
109 static int jump__parse(struct ins_operands
*ops
)
111 const char *s
= strchr(ops
->raw
, '+');
113 ops
->target
.addr
= strtoull(ops
->raw
, NULL
, 16);
116 ops
->target
.offset
= strtoull(s
, NULL
, 16);
118 ops
->target
.offset
= UINT64_MAX
;
123 static int jump__scnprintf(struct ins
*ins
, char *bf
, size_t size
,
124 struct ins_operands
*ops
)
126 return scnprintf(bf
, size
, "%-6.6s %" PRIx64
, ins
->name
, ops
->target
.offset
);
129 static struct ins_ops jump_ops
= {
130 .parse
= jump__parse
,
131 .scnprintf
= jump__scnprintf
,
134 bool ins__is_jump(const struct ins
*ins
)
136 return ins
->ops
== &jump_ops
;
139 static int comment__symbol(char *raw
, char *comment
, u64
*addrp
, char **namep
)
141 char *endptr
, *name
, *t
;
143 if (strstr(raw
, "(%rip)") == NULL
)
146 *addrp
= strtoull(comment
, &endptr
, 16);
147 name
= strchr(endptr
, '<');
153 t
= strchr(name
, '>');
158 *namep
= strdup(name
);
164 static int lock__parse(struct ins_operands
*ops
)
168 ops
->locked
.ops
= zalloc(sizeof(*ops
->locked
.ops
));
169 if (ops
->locked
.ops
== NULL
)
172 if (disasm_line__parse(ops
->raw
, &name
, &ops
->locked
.ops
->raw
) < 0)
175 ops
->locked
.ins
= ins__find(name
);
176 if (ops
->locked
.ins
== NULL
)
179 if (!ops
->locked
.ins
->ops
)
182 if (ops
->locked
.ins
->ops
->parse
)
183 ops
->locked
.ins
->ops
->parse(ops
->locked
.ops
);
188 free(ops
->locked
.ops
);
189 ops
->locked
.ops
= NULL
;
193 static int lock__scnprintf(struct ins
*ins
, char *bf
, size_t size
,
194 struct ins_operands
*ops
)
198 if (ops
->locked
.ins
== NULL
)
199 return ins__raw_scnprintf(ins
, bf
, size
, ops
);
201 printed
= scnprintf(bf
, size
, "%-6.6s ", ins
->name
);
202 return printed
+ ins__scnprintf(ops
->locked
.ins
, bf
+ printed
,
203 size
- printed
, ops
->locked
.ops
);
206 static void lock__delete(struct ins_operands
*ops
)
208 free(ops
->locked
.ops
);
209 free(ops
->target
.raw
);
210 free(ops
->target
.name
);
213 static struct ins_ops lock_ops
= {
214 .free
= lock__delete
,
215 .parse
= lock__parse
,
216 .scnprintf
= lock__scnprintf
,
219 static int mov__parse(struct ins_operands
*ops
)
221 char *s
= strchr(ops
->raw
, ','), *target
, *comment
, prev
;
227 ops
->source
.raw
= strdup(ops
->raw
);
230 if (ops
->source
.raw
== NULL
)
235 while (s
[0] != '\0' && !isspace(s
[0]))
240 ops
->target
.raw
= strdup(target
);
243 if (ops
->target
.raw
== NULL
)
244 goto out_free_source
;
246 comment
= strchr(s
, '#');
250 while (comment
[0] != '\0' && isspace(comment
[0]))
253 comment__symbol(ops
->source
.raw
, comment
, &ops
->source
.addr
, &ops
->source
.name
);
254 comment__symbol(ops
->target
.raw
, comment
, &ops
->target
.addr
, &ops
->target
.name
);
259 free(ops
->source
.raw
);
260 ops
->source
.raw
= NULL
;
264 static int mov__scnprintf(struct ins
*ins
, char *bf
, size_t size
,
265 struct ins_operands
*ops
)
267 return scnprintf(bf
, size
, "%-6.6s %s,%s", ins
->name
,
268 ops
->source
.name
?: ops
->source
.raw
,
269 ops
->target
.name
?: ops
->target
.raw
);
272 static struct ins_ops mov_ops
= {
274 .scnprintf
= mov__scnprintf
,
277 static int dec__parse(struct ins_operands
*ops
)
279 char *target
, *comment
, *s
, prev
;
281 target
= s
= ops
->raw
;
283 while (s
[0] != '\0' && !isspace(s
[0]))
288 ops
->target
.raw
= strdup(target
);
291 if (ops
->target
.raw
== NULL
)
294 comment
= strchr(s
, '#');
298 while (comment
[0] != '\0' && isspace(comment
[0]))
301 comment__symbol(ops
->target
.raw
, comment
, &ops
->target
.addr
, &ops
->target
.name
);
306 static int dec__scnprintf(struct ins
*ins
, char *bf
, size_t size
,
307 struct ins_operands
*ops
)
309 return scnprintf(bf
, size
, "%-6.6s %s", ins
->name
,
310 ops
->target
.name
?: ops
->target
.raw
);
313 static struct ins_ops dec_ops
= {
315 .scnprintf
= dec__scnprintf
,
318 static int nop__scnprintf(struct ins
*ins __maybe_unused
, char *bf
, size_t size
,
319 struct ins_operands
*ops __maybe_unused
)
321 return scnprintf(bf
, size
, "%-6.6s", "nop");
324 static struct ins_ops nop_ops
= {
325 .scnprintf
= nop__scnprintf
,
329 * Must be sorted by name!
331 static struct ins instructions
[] = {
332 { .name
= "add", .ops
= &mov_ops
, },
333 { .name
= "addl", .ops
= &mov_ops
, },
334 { .name
= "addq", .ops
= &mov_ops
, },
335 { .name
= "addw", .ops
= &mov_ops
, },
336 { .name
= "and", .ops
= &mov_ops
, },
337 { .name
= "bts", .ops
= &mov_ops
, },
338 { .name
= "call", .ops
= &call_ops
, },
339 { .name
= "callq", .ops
= &call_ops
, },
340 { .name
= "cmp", .ops
= &mov_ops
, },
341 { .name
= "cmpb", .ops
= &mov_ops
, },
342 { .name
= "cmpl", .ops
= &mov_ops
, },
343 { .name
= "cmpq", .ops
= &mov_ops
, },
344 { .name
= "cmpw", .ops
= &mov_ops
, },
345 { .name
= "cmpxch", .ops
= &mov_ops
, },
346 { .name
= "dec", .ops
= &dec_ops
, },
347 { .name
= "decl", .ops
= &dec_ops
, },
348 { .name
= "imul", .ops
= &mov_ops
, },
349 { .name
= "inc", .ops
= &dec_ops
, },
350 { .name
= "incl", .ops
= &dec_ops
, },
351 { .name
= "ja", .ops
= &jump_ops
, },
352 { .name
= "jae", .ops
= &jump_ops
, },
353 { .name
= "jb", .ops
= &jump_ops
, },
354 { .name
= "jbe", .ops
= &jump_ops
, },
355 { .name
= "jc", .ops
= &jump_ops
, },
356 { .name
= "jcxz", .ops
= &jump_ops
, },
357 { .name
= "je", .ops
= &jump_ops
, },
358 { .name
= "jecxz", .ops
= &jump_ops
, },
359 { .name
= "jg", .ops
= &jump_ops
, },
360 { .name
= "jge", .ops
= &jump_ops
, },
361 { .name
= "jl", .ops
= &jump_ops
, },
362 { .name
= "jle", .ops
= &jump_ops
, },
363 { .name
= "jmp", .ops
= &jump_ops
, },
364 { .name
= "jmpq", .ops
= &jump_ops
, },
365 { .name
= "jna", .ops
= &jump_ops
, },
366 { .name
= "jnae", .ops
= &jump_ops
, },
367 { .name
= "jnb", .ops
= &jump_ops
, },
368 { .name
= "jnbe", .ops
= &jump_ops
, },
369 { .name
= "jnc", .ops
= &jump_ops
, },
370 { .name
= "jne", .ops
= &jump_ops
, },
371 { .name
= "jng", .ops
= &jump_ops
, },
372 { .name
= "jnge", .ops
= &jump_ops
, },
373 { .name
= "jnl", .ops
= &jump_ops
, },
374 { .name
= "jnle", .ops
= &jump_ops
, },
375 { .name
= "jno", .ops
= &jump_ops
, },
376 { .name
= "jnp", .ops
= &jump_ops
, },
377 { .name
= "jns", .ops
= &jump_ops
, },
378 { .name
= "jnz", .ops
= &jump_ops
, },
379 { .name
= "jo", .ops
= &jump_ops
, },
380 { .name
= "jp", .ops
= &jump_ops
, },
381 { .name
= "jpe", .ops
= &jump_ops
, },
382 { .name
= "jpo", .ops
= &jump_ops
, },
383 { .name
= "jrcxz", .ops
= &jump_ops
, },
384 { .name
= "js", .ops
= &jump_ops
, },
385 { .name
= "jz", .ops
= &jump_ops
, },
386 { .name
= "lea", .ops
= &mov_ops
, },
387 { .name
= "lock", .ops
= &lock_ops
, },
388 { .name
= "mov", .ops
= &mov_ops
, },
389 { .name
= "movb", .ops
= &mov_ops
, },
390 { .name
= "movdqa",.ops
= &mov_ops
, },
391 { .name
= "movl", .ops
= &mov_ops
, },
392 { .name
= "movq", .ops
= &mov_ops
, },
393 { .name
= "movslq", .ops
= &mov_ops
, },
394 { .name
= "movzbl", .ops
= &mov_ops
, },
395 { .name
= "movzwl", .ops
= &mov_ops
, },
396 { .name
= "nop", .ops
= &nop_ops
, },
397 { .name
= "nopl", .ops
= &nop_ops
, },
398 { .name
= "nopw", .ops
= &nop_ops
, },
399 { .name
= "or", .ops
= &mov_ops
, },
400 { .name
= "orl", .ops
= &mov_ops
, },
401 { .name
= "test", .ops
= &mov_ops
, },
402 { .name
= "testb", .ops
= &mov_ops
, },
403 { .name
= "testl", .ops
= &mov_ops
, },
404 { .name
= "xadd", .ops
= &mov_ops
, },
405 { .name
= "xbeginl", .ops
= &jump_ops
, },
406 { .name
= "xbeginq", .ops
= &jump_ops
, },
409 static int ins__cmp(const void *name
, const void *insp
)
411 const struct ins
*ins
= insp
;
413 return strcmp(name
, ins
->name
);
416 static struct ins
*ins__find(const char *name
)
418 const int nmemb
= ARRAY_SIZE(instructions
);
420 return bsearch(name
, instructions
, nmemb
, sizeof(struct ins
), ins__cmp
);
423 int symbol__annotate_init(struct map
*map __maybe_unused
, struct symbol
*sym
)
425 struct annotation
*notes
= symbol__annotation(sym
);
426 pthread_mutex_init(¬es
->lock
, NULL
);
430 int symbol__alloc_hist(struct symbol
*sym
)
432 struct annotation
*notes
= symbol__annotation(sym
);
433 const size_t size
= symbol__size(sym
);
434 size_t sizeof_sym_hist
;
436 /* Check for overflow when calculating sizeof_sym_hist */
437 if (size
> (SIZE_MAX
- sizeof(struct sym_hist
)) / sizeof(u64
))
440 sizeof_sym_hist
= (sizeof(struct sym_hist
) + size
* sizeof(u64
));
442 /* Check for overflow in zalloc argument */
443 if (sizeof_sym_hist
> (SIZE_MAX
- sizeof(*notes
->src
))
444 / symbol_conf
.nr_events
)
447 notes
->src
= zalloc(sizeof(*notes
->src
) + symbol_conf
.nr_events
* sizeof_sym_hist
);
448 if (notes
->src
== NULL
)
450 notes
->src
->sizeof_sym_hist
= sizeof_sym_hist
;
451 notes
->src
->nr_histograms
= symbol_conf
.nr_events
;
452 INIT_LIST_HEAD(¬es
->src
->source
);
456 void symbol__annotate_zero_histograms(struct symbol
*sym
)
458 struct annotation
*notes
= symbol__annotation(sym
);
460 pthread_mutex_lock(¬es
->lock
);
461 if (notes
->src
!= NULL
)
462 memset(notes
->src
->histograms
, 0,
463 notes
->src
->nr_histograms
* notes
->src
->sizeof_sym_hist
);
464 pthread_mutex_unlock(¬es
->lock
);
467 int symbol__inc_addr_samples(struct symbol
*sym
, struct map
*map
,
471 struct annotation
*notes
;
474 notes
= symbol__annotation(sym
);
475 if (notes
->src
== NULL
)
478 pr_debug3("%s: addr=%#" PRIx64
"\n", __func__
, map
->unmap_ip(map
, addr
));
480 if (addr
< sym
->start
|| addr
> sym
->end
)
483 offset
= addr
- sym
->start
;
484 h
= annotation__histogram(notes
, evidx
);
488 pr_debug3("%#" PRIx64
" %s: period++ [addr: %#" PRIx64
", %#" PRIx64
489 ", evidx=%d] => %" PRIu64
"\n", sym
->start
, sym
->name
,
490 addr
, addr
- sym
->start
, evidx
, h
->addr
[offset
]);
494 static void disasm_line__init_ins(struct disasm_line
*dl
)
496 dl
->ins
= ins__find(dl
->name
);
504 if (dl
->ins
->ops
->parse
)
505 dl
->ins
->ops
->parse(&dl
->ops
);
508 static int disasm_line__parse(char *line
, char **namep
, char **rawp
)
510 char *name
= line
, tmp
;
512 while (isspace(name
[0]))
520 while ((*rawp
)[0] != '\0' && !isspace((*rawp
)[0]))
525 *namep
= strdup(name
);
532 if ((*rawp
)[0] != '\0') {
534 while (isspace((*rawp
)[0]))
546 static struct disasm_line
*disasm_line__new(s64 offset
, char *line
, size_t privsize
)
548 struct disasm_line
*dl
= zalloc(sizeof(*dl
) + privsize
);
552 dl
->line
= strdup(line
);
553 if (dl
->line
== NULL
)
557 if (disasm_line__parse(dl
->line
, &dl
->name
, &dl
->ops
.raw
) < 0)
560 disasm_line__init_ins(dl
);
573 void disasm_line__free(struct disasm_line
*dl
)
577 if (dl
->ins
&& dl
->ins
->ops
->free
)
578 dl
->ins
->ops
->free(&dl
->ops
);
580 ins__delete(&dl
->ops
);
584 int disasm_line__scnprintf(struct disasm_line
*dl
, char *bf
, size_t size
, bool raw
)
587 return scnprintf(bf
, size
, "%-6.6s %s", dl
->name
, dl
->ops
.raw
);
589 return ins__scnprintf(dl
->ins
, bf
, size
, &dl
->ops
);
592 static void disasm__add(struct list_head
*head
, struct disasm_line
*line
)
594 list_add_tail(&line
->node
, head
);
597 struct disasm_line
*disasm__get_next_ip_line(struct list_head
*head
, struct disasm_line
*pos
)
599 list_for_each_entry_continue(pos
, head
, node
)
600 if (pos
->offset
>= 0)
606 double disasm__calc_percent(struct annotation
*notes
, int evidx
, s64 offset
,
607 s64 end
, const char **path
)
609 struct source_line
*src_line
= notes
->src
->lines
;
610 double percent
= 0.0;
613 size_t sizeof_src_line
= sizeof(*src_line
) +
614 sizeof(src_line
->p
) * (src_line
->nr_pcnt
- 1);
616 while (offset
< end
) {
617 src_line
= (void *)notes
->src
->lines
+
618 (sizeof_src_line
* offset
);
621 *path
= src_line
->path
;
623 percent
+= src_line
->p
[evidx
].percent
;
627 struct sym_hist
*h
= annotation__histogram(notes
, evidx
);
628 unsigned int hits
= 0;
631 hits
+= h
->addr
[offset
++];
634 percent
= 100.0 * hits
/ h
->sum
;
640 static int disasm_line__print(struct disasm_line
*dl
, struct symbol
*sym
, u64 start
,
641 struct perf_evsel
*evsel
, u64 len
, int min_pcnt
, int printed
,
642 int max_lines
, struct disasm_line
*queue
)
644 static const char *prev_line
;
645 static const char *prev_color
;
647 if (dl
->offset
!= -1) {
648 const char *path
= NULL
;
649 double percent
, max_percent
= 0.0;
650 double *ppercents
= &percent
;
651 int i
, nr_percent
= 1;
653 struct annotation
*notes
= symbol__annotation(sym
);
654 s64 offset
= dl
->offset
;
655 const u64 addr
= start
+ offset
;
656 struct disasm_line
*next
;
658 next
= disasm__get_next_ip_line(¬es
->src
->source
, dl
);
660 if (perf_evsel__is_group_event(evsel
)) {
661 nr_percent
= evsel
->nr_members
;
662 ppercents
= calloc(nr_percent
, sizeof(double));
663 if (ppercents
== NULL
)
667 for (i
= 0; i
< nr_percent
; i
++) {
668 percent
= disasm__calc_percent(notes
,
669 notes
->src
->lines
? i
: evsel
->idx
+ i
,
671 next
? next
->offset
: (s64
) len
,
674 ppercents
[i
] = percent
;
675 if (percent
> max_percent
)
676 max_percent
= percent
;
679 if (max_percent
< min_pcnt
)
682 if (max_lines
&& printed
>= max_lines
)
686 list_for_each_entry_from(queue
, ¬es
->src
->source
, node
) {
689 disasm_line__print(queue
, sym
, start
, evsel
, len
,
694 color
= get_percent_color(max_percent
);
697 * Also color the filename and line if needed, with
698 * the same color than the percentage. Don't print it
699 * twice for close colored addr with the same filename:line
702 if (!prev_line
|| strcmp(prev_line
, path
)
703 || color
!= prev_color
) {
704 color_fprintf(stdout
, color
, " %s", path
);
710 for (i
= 0; i
< nr_percent
; i
++) {
711 percent
= ppercents
[i
];
712 color
= get_percent_color(percent
);
713 color_fprintf(stdout
, color
, " %7.2f", percent
);
717 color_fprintf(stdout
, PERF_COLOR_MAGENTA
, " %" PRIx64
":", addr
);
718 color_fprintf(stdout
, PERF_COLOR_BLUE
, "%s\n", dl
->line
);
720 if (ppercents
!= &percent
)
723 } else if (max_lines
&& printed
>= max_lines
)
731 if (perf_evsel__is_group_event(evsel
))
732 width
*= evsel
->nr_members
;
735 printf(" %*s:\n", width
, " ");
737 printf(" %*s: %s\n", width
, " ", dl
->line
);
744 * symbol__parse_objdump_line() parses objdump output (with -d --no-show-raw)
745 * which looks like following
747 * 0000000000415500 <_init>:
748 * 415500: sub $0x8,%rsp
749 * 415504: mov 0x2f5ad5(%rip),%rax # 70afe0 <_DYNAMIC+0x2f8>
750 * 41550b: test %rax,%rax
751 * 41550e: je 415515 <_init+0x15>
752 * 415510: callq 416e70 <__gmon_start__@plt>
753 * 415515: add $0x8,%rsp
756 * it will be parsed and saved into struct disasm_line as
757 * <offset> <name> <ops.raw>
759 * The offset will be a relative offset from the start of the symbol and -1
760 * means that it's not a disassembly line so should be treated differently.
761 * The ops.raw part will be parsed further according to type of the instruction.
763 static int symbol__parse_objdump_line(struct symbol
*sym
, struct map
*map
,
764 FILE *file
, size_t privsize
)
766 struct annotation
*notes
= symbol__annotation(sym
);
767 struct disasm_line
*dl
;
768 char *line
= NULL
, *parsed_line
, *tmp
, *tmp2
, *c
;
770 s64 line_ip
, offset
= -1;
772 if (getline(&line
, &line_len
, file
) < 0)
778 while (line_len
!= 0 && isspace(line
[line_len
- 1]))
779 line
[--line_len
] = '\0';
781 c
= strchr(line
, '\n');
789 * Strip leading spaces:
800 * Parse hexa addresses followed by ':'
802 line_ip
= strtoull(tmp
, &tmp2
, 16);
803 if (*tmp2
!= ':' || tmp
== tmp2
|| tmp2
[1] == '\0')
808 u64 start
= map__rip_2objdump(map
, sym
->start
),
809 end
= map__rip_2objdump(map
, sym
->end
);
811 offset
= line_ip
- start
;
812 if ((u64
)line_ip
< start
|| (u64
)line_ip
> end
)
815 parsed_line
= tmp2
+ 1;
818 dl
= disasm_line__new(offset
, parsed_line
, privsize
);
824 if (dl
->ops
.target
.offset
== UINT64_MAX
)
825 dl
->ops
.target
.offset
= dl
->ops
.target
.addr
-
826 map__rip_2objdump(map
, sym
->start
);
829 * kcore has no symbols, so add the call target name if it is on the
832 if (dl
->ins
&& ins__is_call(dl
->ins
) && !dl
->ops
.target
.name
) {
834 u64 ip
= dl
->ops
.target
.addr
;
836 if (ip
>= map
->start
&& ip
<= map
->end
) {
837 ip
= map
->map_ip(map
, ip
);
838 s
= map__find_symbol(map
, ip
, NULL
);
839 if (s
&& s
->start
== ip
)
840 dl
->ops
.target
.name
= strdup(s
->name
);
844 disasm__add(¬es
->src
->source
, dl
);
849 static void delete_last_nop(struct symbol
*sym
)
851 struct annotation
*notes
= symbol__annotation(sym
);
852 struct list_head
*list
= ¬es
->src
->source
;
853 struct disasm_line
*dl
;
855 while (!list_empty(list
)) {
856 dl
= list_entry(list
->prev
, struct disasm_line
, node
);
858 if (dl
->ins
&& dl
->ins
->ops
) {
859 if (dl
->ins
->ops
!= &nop_ops
)
862 if (!strstr(dl
->line
, " nop ") &&
863 !strstr(dl
->line
, " nopl ") &&
864 !strstr(dl
->line
, " nopw "))
869 disasm_line__free(dl
);
873 int symbol__annotate(struct symbol
*sym
, struct map
*map
, size_t privsize
)
875 struct dso
*dso
= map
->dso
;
876 char *filename
= dso__build_id_filename(dso
, NULL
, 0);
877 bool free_filename
= true;
878 char command
[PATH_MAX
* 2];
881 char symfs_filename
[PATH_MAX
];
884 snprintf(symfs_filename
, sizeof(symfs_filename
), "%s%s",
885 symbol_conf
.symfs
, filename
);
888 if (filename
== NULL
) {
889 if (dso
->has_build_id
) {
890 pr_err("Can't annotate %s: not enough memory\n",
895 } else if (readlink(symfs_filename
, command
, sizeof(command
)) < 0 ||
896 strstr(command
, "[kernel.kallsyms]") ||
897 access(symfs_filename
, R_OK
)) {
901 * If we don't have build-ids or the build-id file isn't in the
902 * cache, or is just a kallsyms file, well, lets hope that this
903 * DSO is the same as when 'perf record' ran.
905 filename
= dso
->long_name
;
906 snprintf(symfs_filename
, sizeof(symfs_filename
), "%s%s",
907 symbol_conf
.symfs
, filename
);
908 free_filename
= false;
911 if (dso
->symtab_type
== DSO_BINARY_TYPE__KALLSYMS
&&
912 !dso__is_kcore(dso
)) {
913 char bf
[BUILD_ID_SIZE
* 2 + 16] = " with build id ";
914 char *build_id_msg
= NULL
;
916 if (dso
->annotate_warned
)
917 goto out_free_filename
;
919 if (dso
->has_build_id
) {
920 build_id__sprintf(dso
->build_id
,
921 sizeof(dso
->build_id
), bf
+ 15);
925 dso
->annotate_warned
= 1;
926 pr_err("Can't annotate %s:\n\n"
927 "No vmlinux file%s\nwas found in the path.\n\n"
929 " perf buildid-cache -vu vmlinux\n\n"
931 " --vmlinux vmlinux\n",
932 sym
->name
, build_id_msg
?: "");
933 goto out_free_filename
;
936 pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64
", end=%#" PRIx64
"\n", __func__
,
937 filename
, sym
->name
, map
->unmap_ip(map
, sym
->start
),
938 map
->unmap_ip(map
, sym
->end
));
940 pr_debug("annotating [%p] %30s : [%p] %30s\n",
941 dso
, dso
->long_name
, sym
, sym
->name
);
943 snprintf(command
, sizeof(command
),
944 "%s %s%s --start-address=0x%016" PRIx64
945 " --stop-address=0x%016" PRIx64
946 " -d %s %s -C %s 2>/dev/null|grep -v %s|expand",
947 objdump_path
? objdump_path
: "objdump",
948 disassembler_style
? "-M " : "",
949 disassembler_style
? disassembler_style
: "",
950 map__rip_2objdump(map
, sym
->start
),
951 map__rip_2objdump(map
, sym
->end
+1),
952 symbol_conf
.annotate_asm_raw
? "" : "--no-show-raw",
953 symbol_conf
.annotate_src
? "-S" : "",
954 symfs_filename
, filename
);
956 pr_debug("Executing: %s\n", command
);
958 file
= popen(command
, "r");
960 goto out_free_filename
;
963 if (symbol__parse_objdump_line(sym
, map
, file
, privsize
) < 0)
967 * kallsyms does not have symbol sizes so there may a nop at the end.
970 if (dso__is_kcore(dso
))
971 delete_last_nop(sym
);
980 static void insert_source_line(struct rb_root
*root
, struct source_line
*src_line
)
982 struct source_line
*iter
;
983 struct rb_node
**p
= &root
->rb_node
;
984 struct rb_node
*parent
= NULL
;
989 iter
= rb_entry(parent
, struct source_line
, node
);
991 ret
= strcmp(iter
->path
, src_line
->path
);
993 for (i
= 0; i
< src_line
->nr_pcnt
; i
++)
994 iter
->p
[i
].percent_sum
+= src_line
->p
[i
].percent
;
1001 p
= &(*p
)->rb_right
;
1004 for (i
= 0; i
< src_line
->nr_pcnt
; i
++)
1005 src_line
->p
[i
].percent_sum
= src_line
->p
[i
].percent
;
1007 rb_link_node(&src_line
->node
, parent
, p
);
1008 rb_insert_color(&src_line
->node
, root
);
1011 static int cmp_source_line(struct source_line
*a
, struct source_line
*b
)
1015 for (i
= 0; i
< a
->nr_pcnt
; i
++) {
1016 if (a
->p
[i
].percent_sum
== b
->p
[i
].percent_sum
)
1018 return a
->p
[i
].percent_sum
> b
->p
[i
].percent_sum
;
1024 static void __resort_source_line(struct rb_root
*root
, struct source_line
*src_line
)
1026 struct source_line
*iter
;
1027 struct rb_node
**p
= &root
->rb_node
;
1028 struct rb_node
*parent
= NULL
;
1030 while (*p
!= NULL
) {
1032 iter
= rb_entry(parent
, struct source_line
, node
);
1034 if (cmp_source_line(src_line
, iter
))
1037 p
= &(*p
)->rb_right
;
1040 rb_link_node(&src_line
->node
, parent
, p
);
1041 rb_insert_color(&src_line
->node
, root
);
1044 static void resort_source_line(struct rb_root
*dest_root
, struct rb_root
*src_root
)
1046 struct source_line
*src_line
;
1047 struct rb_node
*node
;
1049 node
= rb_first(src_root
);
1051 struct rb_node
*next
;
1053 src_line
= rb_entry(node
, struct source_line
, node
);
1054 next
= rb_next(node
);
1055 rb_erase(node
, src_root
);
1057 __resort_source_line(dest_root
, src_line
);
1062 static void symbol__free_source_line(struct symbol
*sym
, int len
)
1064 struct annotation
*notes
= symbol__annotation(sym
);
1065 struct source_line
*src_line
= notes
->src
->lines
;
1066 size_t sizeof_src_line
;
1069 sizeof_src_line
= sizeof(*src_line
) +
1070 (sizeof(src_line
->p
) * (src_line
->nr_pcnt
- 1));
1072 for (i
= 0; i
< len
; i
++) {
1073 free(src_line
->path
);
1074 src_line
= (void *)src_line
+ sizeof_src_line
;
1077 free(notes
->src
->lines
);
1078 notes
->src
->lines
= NULL
;
1081 /* Get the filename:line for the colored entries */
1082 static int symbol__get_source_line(struct symbol
*sym
, struct map
*map
,
1083 struct perf_evsel
*evsel
,
1084 struct rb_root
*root
, int len
,
1085 const char *filename
)
1089 int evidx
= evsel
->idx
;
1090 char cmd
[PATH_MAX
* 2];
1091 struct source_line
*src_line
;
1092 struct annotation
*notes
= symbol__annotation(sym
);
1093 struct sym_hist
*h
= annotation__histogram(notes
, evidx
);
1094 struct rb_root tmp_root
= RB_ROOT
;
1097 size_t sizeof_src_line
= sizeof(struct source_line
);
1099 if (perf_evsel__is_group_event(evsel
)) {
1100 for (i
= 1; i
< evsel
->nr_members
; i
++) {
1101 h
= annotation__histogram(notes
, evidx
+ i
);
1104 nr_pcnt
= evsel
->nr_members
;
1105 sizeof_src_line
+= (nr_pcnt
- 1) * sizeof(src_line
->p
);
1111 src_line
= notes
->src
->lines
= calloc(len
, sizeof_src_line
);
1112 if (!notes
->src
->lines
)
1115 start
= map__rip_2objdump(map
, sym
->start
);
1117 for (i
= 0; i
< len
; i
++) {
1122 double percent_max
= 0.0;
1124 src_line
->nr_pcnt
= nr_pcnt
;
1126 for (k
= 0; k
< nr_pcnt
; k
++) {
1127 h
= annotation__histogram(notes
, evidx
+ k
);
1128 src_line
->p
[k
].percent
= 100.0 * h
->addr
[i
] / h
->sum
;
1130 if (src_line
->p
[k
].percent
> percent_max
)
1131 percent_max
= src_line
->p
[k
].percent
;
1134 if (percent_max
<= 0.5)
1138 sprintf(cmd
, "addr2line -e %s %016" PRIx64
, filename
, offset
);
1139 fp
= popen(cmd
, "r");
1143 if (getline(&path
, &line_len
, fp
) < 0 || !line_len
)
1146 src_line
->path
= malloc(sizeof(char) * line_len
+ 1);
1147 if (!src_line
->path
)
1150 strcpy(src_line
->path
, path
);
1151 insert_source_line(&tmp_root
, src_line
);
1156 src_line
= (void *)src_line
+ sizeof_src_line
;
1159 resort_source_line(root
, &tmp_root
);
1163 static void print_summary(struct rb_root
*root
, const char *filename
)
1165 struct source_line
*src_line
;
1166 struct rb_node
*node
;
1168 printf("\nSorted summary for file %s\n", filename
);
1169 printf("----------------------------------------------\n\n");
1171 if (RB_EMPTY_ROOT(root
)) {
1172 printf(" Nothing higher than %1.1f%%\n", MIN_GREEN
);
1176 node
= rb_first(root
);
1178 double percent
, percent_max
= 0.0;
1183 src_line
= rb_entry(node
, struct source_line
, node
);
1184 for (i
= 0; i
< src_line
->nr_pcnt
; i
++) {
1185 percent
= src_line
->p
[i
].percent_sum
;
1186 color
= get_percent_color(percent
);
1187 color_fprintf(stdout
, color
, " %7.2f", percent
);
1189 if (percent
> percent_max
)
1190 percent_max
= percent
;
1193 path
= src_line
->path
;
1194 color
= get_percent_color(percent_max
);
1195 color_fprintf(stdout
, color
, " %s", path
);
1197 node
= rb_next(node
);
1201 static void symbol__annotate_hits(struct symbol
*sym
, struct perf_evsel
*evsel
)
1203 struct annotation
*notes
= symbol__annotation(sym
);
1204 struct sym_hist
*h
= annotation__histogram(notes
, evsel
->idx
);
1205 u64 len
= symbol__size(sym
), offset
;
1207 for (offset
= 0; offset
< len
; ++offset
)
1208 if (h
->addr
[offset
] != 0)
1209 printf("%*" PRIx64
": %" PRIu64
"\n", BITS_PER_LONG
/ 2,
1210 sym
->start
+ offset
, h
->addr
[offset
]);
1211 printf("%*s: %" PRIu64
"\n", BITS_PER_LONG
/ 2, "h->sum", h
->sum
);
1214 int symbol__annotate_printf(struct symbol
*sym
, struct map
*map
,
1215 struct perf_evsel
*evsel
, bool full_paths
,
1216 int min_pcnt
, int max_lines
, int context
)
1218 struct dso
*dso
= map
->dso
;
1220 const char *d_filename
;
1221 struct annotation
*notes
= symbol__annotation(sym
);
1222 struct disasm_line
*pos
, *queue
= NULL
;
1223 u64 start
= map__rip_2objdump(map
, sym
->start
);
1224 int printed
= 2, queue_len
= 0;
1230 filename
= strdup(dso
->long_name
);
1235 d_filename
= filename
;
1237 d_filename
= basename(filename
);
1239 len
= symbol__size(sym
);
1240 namelen
= strlen(d_filename
);
1242 if (perf_evsel__is_group_event(evsel
))
1243 width
*= evsel
->nr_members
;
1245 printf(" %-*.*s| Source code & Disassembly of %s\n",
1246 width
, width
, "Percent", d_filename
);
1247 printf("-%-*.*s-------------------------------------\n",
1248 width
+namelen
, width
+namelen
, graph_dotted_line
);
1251 symbol__annotate_hits(sym
, evsel
);
1253 list_for_each_entry(pos
, ¬es
->src
->source
, node
) {
1254 if (context
&& queue
== NULL
) {
1259 switch (disasm_line__print(pos
, sym
, start
, evsel
, len
,
1260 min_pcnt
, printed
, max_lines
,
1265 printed
+= queue_len
;
1271 /* filtered by max_lines */
1277 * Filtered by min_pcnt or non IP lines when
1282 if (queue_len
== context
)
1283 queue
= list_entry(queue
->node
.next
, typeof(*queue
), node
);
1295 void symbol__annotate_zero_histogram(struct symbol
*sym
, int evidx
)
1297 struct annotation
*notes
= symbol__annotation(sym
);
1298 struct sym_hist
*h
= annotation__histogram(notes
, evidx
);
1300 memset(h
, 0, notes
->src
->sizeof_sym_hist
);
1303 void symbol__annotate_decay_histogram(struct symbol
*sym
, int evidx
)
1305 struct annotation
*notes
= symbol__annotation(sym
);
1306 struct sym_hist
*h
= annotation__histogram(notes
, evidx
);
1307 int len
= symbol__size(sym
), offset
;
1310 for (offset
= 0; offset
< len
; ++offset
) {
1311 h
->addr
[offset
] = h
->addr
[offset
] * 7 / 8;
1312 h
->sum
+= h
->addr
[offset
];
1316 void disasm__purge(struct list_head
*head
)
1318 struct disasm_line
*pos
, *n
;
1320 list_for_each_entry_safe(pos
, n
, head
, node
) {
1321 list_del(&pos
->node
);
1322 disasm_line__free(pos
);
1326 static size_t disasm_line__fprintf(struct disasm_line
*dl
, FILE *fp
)
1330 if (dl
->offset
== -1)
1331 return fprintf(fp
, "%s\n", dl
->line
);
1333 printed
= fprintf(fp
, "%#" PRIx64
" %s", dl
->offset
, dl
->name
);
1335 if (dl
->ops
.raw
[0] != '\0') {
1336 printed
+= fprintf(fp
, "%.*s %s\n", 6 - (int)printed
, " ",
1340 return printed
+ fprintf(fp
, "\n");
1343 size_t disasm__fprintf(struct list_head
*head
, FILE *fp
)
1345 struct disasm_line
*pos
;
1348 list_for_each_entry(pos
, head
, node
)
1349 printed
+= disasm_line__fprintf(pos
, fp
);
1354 int symbol__tty_annotate(struct symbol
*sym
, struct map
*map
,
1355 struct perf_evsel
*evsel
, bool print_lines
,
1356 bool full_paths
, int min_pcnt
, int max_lines
)
1358 struct dso
*dso
= map
->dso
;
1359 const char *filename
= dso
->long_name
;
1360 struct rb_root source_line
= RB_ROOT
;
1363 if (symbol__annotate(sym
, map
, 0) < 0)
1366 len
= symbol__size(sym
);
1369 symbol__get_source_line(sym
, map
, evsel
, &source_line
,
1371 print_summary(&source_line
, filename
);
1374 symbol__annotate_printf(sym
, map
, evsel
, full_paths
,
1375 min_pcnt
, max_lines
, 0);
1377 symbol__free_source_line(sym
, len
);
1379 disasm__purge(&symbol__annotation(sym
)->src
->source
);