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-rw-r--r--tools/perf/builtin-annotate.c1058
1 files changed, 194 insertions, 864 deletions
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 1ec741615814..fd20670ce986 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -14,717 +14,103 @@
14#include "util/cache.h" 14#include "util/cache.h"
15#include <linux/rbtree.h> 15#include <linux/rbtree.h>
16#include "util/symbol.h" 16#include "util/symbol.h"
17#include "util/string.h"
18 17
19#include "perf.h" 18#include "perf.h"
20#include "util/debug.h" 19#include "util/debug.h"
21 20
21#include "util/event.h"
22#include "util/parse-options.h" 22#include "util/parse-options.h"
23#include "util/parse-events.h" 23#include "util/parse-events.h"
24#include "util/thread.h" 24#include "util/thread.h"
25#include "util/sort.h"
26#include "util/hist.h"
27#include "util/session.h"
25 28
26static char const *input_name = "perf.data"; 29static char const *input_name = "perf.data";
27 30
28static char default_sort_order[] = "comm,symbol"; 31static bool force;
29static char *sort_order = default_sort_order;
30 32
31static int force; 33static bool full_paths;
32static int input;
33static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV;
34 34
35static int full_paths; 35static bool print_line;
36 36
37static int print_line; 37static const char *sym_hist_filter;
38 38
39static unsigned long page_size; 39static int hists__add_entry(struct hists *self, struct addr_location *al)
40static unsigned long mmap_window = 32;
41
42static struct rb_root threads;
43static struct thread *last_match;
44
45
46struct sym_ext {
47 struct rb_node node;
48 double percent;
49 char *path;
50};
51
52/*
53 * histogram, sorted on item, collects counts
54 */
55
56static struct rb_root hist;
57
58struct hist_entry {
59 struct rb_node rb_node;
60
61 struct thread *thread;
62 struct map *map;
63 struct dso *dso;
64 struct symbol *sym;
65 u64 ip;
66 char level;
67
68 uint32_t count;
69};
70
71/*
72 * configurable sorting bits
73 */
74
75struct sort_entry {
76 struct list_head list;
77
78 const char *header;
79
80 int64_t (*cmp)(struct hist_entry *, struct hist_entry *);
81 int64_t (*collapse)(struct hist_entry *, struct hist_entry *);
82 size_t (*print)(FILE *fp, struct hist_entry *);
83};
84
85/* --sort pid */
86
87static int64_t
88sort__thread_cmp(struct hist_entry *left, struct hist_entry *right)
89{
90 return right->thread->pid - left->thread->pid;
91}
92
93static size_t
94sort__thread_print(FILE *fp, struct hist_entry *self)
95{
96 return fprintf(fp, "%16s:%5d", self->thread->comm ?: "", self->thread->pid);
97}
98
99static struct sort_entry sort_thread = {
100 .header = " Command: Pid",
101 .cmp = sort__thread_cmp,
102 .print = sort__thread_print,
103};
104
105/* --sort comm */
106
107static int64_t
108sort__comm_cmp(struct hist_entry *left, struct hist_entry *right)
109{
110 return right->thread->pid - left->thread->pid;
111}
112
113static int64_t
114sort__comm_collapse(struct hist_entry *left, struct hist_entry *right)
115{
116 char *comm_l = left->thread->comm;
117 char *comm_r = right->thread->comm;
118
119 if (!comm_l || !comm_r) {
120 if (!comm_l && !comm_r)
121 return 0;
122 else if (!comm_l)
123 return -1;
124 else
125 return 1;
126 }
127
128 return strcmp(comm_l, comm_r);
129}
130
131static size_t
132sort__comm_print(FILE *fp, struct hist_entry *self)
133{
134 return fprintf(fp, "%16s", self->thread->comm);
135}
136
137static struct sort_entry sort_comm = {
138 .header = " Command",
139 .cmp = sort__comm_cmp,
140 .collapse = sort__comm_collapse,
141 .print = sort__comm_print,
142};
143
144/* --sort dso */
145
146static int64_t
147sort__dso_cmp(struct hist_entry *left, struct hist_entry *right)
148{
149 struct dso *dso_l = left->dso;
150 struct dso *dso_r = right->dso;
151
152 if (!dso_l || !dso_r) {
153 if (!dso_l && !dso_r)
154 return 0;
155 else if (!dso_l)
156 return -1;
157 else
158 return 1;
159 }
160
161 return strcmp(dso_l->name, dso_r->name);
162}
163
164static size_t
165sort__dso_print(FILE *fp, struct hist_entry *self)
166{
167 if (self->dso)
168 return fprintf(fp, "%-25s", self->dso->name);
169
170 return fprintf(fp, "%016llx ", (u64)self->ip);
171}
172
173static struct sort_entry sort_dso = {
174 .header = "Shared Object ",
175 .cmp = sort__dso_cmp,
176 .print = sort__dso_print,
177};
178
179/* --sort symbol */
180
181static int64_t
182sort__sym_cmp(struct hist_entry *left, struct hist_entry *right)
183{
184 u64 ip_l, ip_r;
185
186 if (left->sym == right->sym)
187 return 0;
188
189 ip_l = left->sym ? left->sym->start : left->ip;
190 ip_r = right->sym ? right->sym->start : right->ip;
191
192 return (int64_t)(ip_r - ip_l);
193}
194
195static size_t
196sort__sym_print(FILE *fp, struct hist_entry *self)
197{
198 size_t ret = 0;
199
200 if (verbose)
201 ret += fprintf(fp, "%#018llx ", (u64)self->ip);
202
203 if (self->sym) {
204 ret += fprintf(fp, "[%c] %s",
205 self->dso == kernel_dso ? 'k' : '.', self->sym->name);
206 } else {
207 ret += fprintf(fp, "%#016llx", (u64)self->ip);
208 }
209
210 return ret;
211}
212
213static struct sort_entry sort_sym = {
214 .header = "Symbol",
215 .cmp = sort__sym_cmp,
216 .print = sort__sym_print,
217};
218
219static int sort__need_collapse = 0;
220
221struct sort_dimension {
222 const char *name;
223 struct sort_entry *entry;
224 int taken;
225};
226
227static struct sort_dimension sort_dimensions[] = {
228 { .name = "pid", .entry = &sort_thread, },
229 { .name = "comm", .entry = &sort_comm, },
230 { .name = "dso", .entry = &sort_dso, },
231 { .name = "symbol", .entry = &sort_sym, },
232};
233
234static LIST_HEAD(hist_entry__sort_list);
235
236static int sort_dimension__add(char *tok)
237{ 40{
238 unsigned int i;
239
240 for (i = 0; i < ARRAY_SIZE(sort_dimensions); i++) {
241 struct sort_dimension *sd = &sort_dimensions[i];
242
243 if (sd->taken)
244 continue;
245
246 if (strncasecmp(tok, sd->name, strlen(tok)))
247 continue;
248
249 if (sd->entry->collapse)
250 sort__need_collapse = 1;
251
252 list_add_tail(&sd->entry->list, &hist_entry__sort_list);
253 sd->taken = 1;
254
255 return 0;
256 }
257
258 return -ESRCH;
259}
260
261static int64_t
262hist_entry__cmp(struct hist_entry *left, struct hist_entry *right)
263{
264 struct sort_entry *se;
265 int64_t cmp = 0;
266
267 list_for_each_entry(se, &hist_entry__sort_list, list) {
268 cmp = se->cmp(left, right);
269 if (cmp)
270 break;
271 }
272
273 return cmp;
274}
275
276static int64_t
277hist_entry__collapse(struct hist_entry *left, struct hist_entry *right)
278{
279 struct sort_entry *se;
280 int64_t cmp = 0;
281
282 list_for_each_entry(se, &hist_entry__sort_list, list) {
283 int64_t (*f)(struct hist_entry *, struct hist_entry *);
284
285 f = se->collapse ?: se->cmp;
286
287 cmp = f(left, right);
288 if (cmp)
289 break;
290 }
291
292 return cmp;
293}
294
295/*
296 * collect histogram counts
297 */
298static void hist_hit(struct hist_entry *he, u64 ip)
299{
300 unsigned int sym_size, offset;
301 struct symbol *sym = he->sym;
302
303 he->count++;
304
305 if (!sym || !sym->hist)
306 return;
307
308 sym_size = sym->end - sym->start;
309 offset = ip - sym->start;
310
311 if (offset >= sym_size)
312 return;
313
314 sym->hist_sum++;
315 sym->hist[offset]++;
316
317 if (verbose >= 3)
318 printf("%p %s: count++ [ip: %p, %08Lx] => %Ld\n",
319 (void *)(unsigned long)he->sym->start,
320 he->sym->name,
321 (void *)(unsigned long)ip, ip - he->sym->start,
322 sym->hist[offset]);
323}
324
325static int
326hist_entry__add(struct thread *thread, struct map *map, struct dso *dso,
327 struct symbol *sym, u64 ip, char level)
328{
329 struct rb_node **p = &hist.rb_node;
330 struct rb_node *parent = NULL;
331 struct hist_entry *he; 41 struct hist_entry *he;
332 struct hist_entry entry = {
333 .thread = thread,
334 .map = map,
335 .dso = dso,
336 .sym = sym,
337 .ip = ip,
338 .level = level,
339 .count = 1,
340 };
341 int cmp;
342
343 while (*p != NULL) {
344 parent = *p;
345 he = rb_entry(parent, struct hist_entry, rb_node);
346
347 cmp = hist_entry__cmp(&entry, he);
348
349 if (!cmp) {
350 hist_hit(he, ip);
351
352 return 0;
353 }
354
355 if (cmp < 0)
356 p = &(*p)->rb_left;
357 else
358 p = &(*p)->rb_right;
359 }
360
361 he = malloc(sizeof(*he));
362 if (!he)
363 return -ENOMEM;
364 *he = entry;
365 rb_link_node(&he->rb_node, parent, p);
366 rb_insert_color(&he->rb_node, &hist);
367
368 return 0;
369}
370
371static void hist_entry__free(struct hist_entry *he)
372{
373 free(he);
374}
375
376/*
377 * collapse the histogram
378 */
379
380static struct rb_root collapse_hists;
381
382static void collapse__insert_entry(struct hist_entry *he)
383{
384 struct rb_node **p = &collapse_hists.rb_node;
385 struct rb_node *parent = NULL;
386 struct hist_entry *iter;
387 int64_t cmp;
388
389 while (*p != NULL) {
390 parent = *p;
391 iter = rb_entry(parent, struct hist_entry, rb_node);
392
393 cmp = hist_entry__collapse(iter, he);
394
395 if (!cmp) {
396 iter->count += he->count;
397 hist_entry__free(he);
398 return;
399 }
400
401 if (cmp < 0)
402 p = &(*p)->rb_left;
403 else
404 p = &(*p)->rb_right;
405 }
406
407 rb_link_node(&he->rb_node, parent, p);
408 rb_insert_color(&he->rb_node, &collapse_hists);
409}
410 42
411static void collapse__resort(void) 43 if (sym_hist_filter != NULL &&
412{ 44 (al->sym == NULL || strcmp(sym_hist_filter, al->sym->name) != 0)) {
413 struct rb_node *next; 45 /* We're only interested in a symbol named sym_hist_filter */
414 struct hist_entry *n; 46 if (al->sym != NULL) {
415 47 rb_erase(&al->sym->rb_node,
416 if (!sort__need_collapse) 48 &al->map->dso->symbols[al->map->type]);
417 return; 49 symbol__delete(al->sym);
418
419 next = rb_first(&hist);
420 while (next) {
421 n = rb_entry(next, struct hist_entry, rb_node);
422 next = rb_next(&n->rb_node);
423
424 rb_erase(&n->rb_node, &hist);
425 collapse__insert_entry(n);
426 }
427}
428
429/*
430 * reverse the map, sort on count.
431 */
432
433static struct rb_root output_hists;
434
435static void output__insert_entry(struct hist_entry *he)
436{
437 struct rb_node **p = &output_hists.rb_node;
438 struct rb_node *parent = NULL;
439 struct hist_entry *iter;
440
441 while (*p != NULL) {
442 parent = *p;
443 iter = rb_entry(parent, struct hist_entry, rb_node);
444
445 if (he->count > iter->count)
446 p = &(*p)->rb_left;
447 else
448 p = &(*p)->rb_right;
449 }
450
451 rb_link_node(&he->rb_node, parent, p);
452 rb_insert_color(&he->rb_node, &output_hists);
453}
454
455static void output__resort(void)
456{
457 struct rb_node *next;
458 struct hist_entry *n;
459 struct rb_root *tree = &hist;
460
461 if (sort__need_collapse)
462 tree = &collapse_hists;
463
464 next = rb_first(tree);
465
466 while (next) {
467 n = rb_entry(next, struct hist_entry, rb_node);
468 next = rb_next(&n->rb_node);
469
470 rb_erase(&n->rb_node, tree);
471 output__insert_entry(n);
472 }
473}
474
475static unsigned long total = 0,
476 total_mmap = 0,
477 total_comm = 0,
478 total_fork = 0,
479 total_unknown = 0;
480
481static int
482process_sample_event(event_t *event, unsigned long offset, unsigned long head)
483{
484 char level;
485 int show = 0;
486 struct dso *dso = NULL;
487 struct thread *thread;
488 u64 ip = event->ip.ip;
489 struct map *map = NULL;
490
491 thread = threads__findnew(event->ip.pid, &threads, &last_match);
492
493 dump_printf("%p [%p]: PERF_EVENT (IP, %d): %d: %p\n",
494 (void *)(offset + head),
495 (void *)(long)(event->header.size),
496 event->header.misc,
497 event->ip.pid,
498 (void *)(long)ip);
499
500 dump_printf(" ... thread: %s:%d\n", thread->comm, thread->pid);
501
502 if (thread == NULL) {
503 fprintf(stderr, "problem processing %d event, skipping it.\n",
504 event->header.type);
505 return -1;
506 }
507
508 if (event->header.misc & PERF_RECORD_MISC_KERNEL) {
509 show = SHOW_KERNEL;
510 level = 'k';
511
512 dso = kernel_dso;
513
514 dump_printf(" ...... dso: %s\n", dso->name);
515
516 } else if (event->header.misc & PERF_RECORD_MISC_USER) {
517
518 show = SHOW_USER;
519 level = '.';
520
521 map = thread__find_map(thread, ip);
522 if (map != NULL) {
523 ip = map->map_ip(map, ip);
524 dso = map->dso;
525 } else {
526 /*
527 * If this is outside of all known maps,
528 * and is a negative address, try to look it
529 * up in the kernel dso, as it might be a
530 * vsyscall (which executes in user-mode):
531 */
532 if ((long long)ip < 0)
533 dso = kernel_dso;
534 }
535 dump_printf(" ...... dso: %s\n", dso ? dso->name : "<not found>");
536
537 } else {
538 show = SHOW_HV;
539 level = 'H';
540 dump_printf(" ...... dso: [hypervisor]\n");
541 }
542
543 if (show & show_mask) {
544 struct symbol *sym = NULL;
545
546 if (dso)
547 sym = dso->find_symbol(dso, ip);
548
549 if (hist_entry__add(thread, map, dso, sym, ip, level)) {
550 fprintf(stderr,
551 "problem incrementing symbol count, skipping event\n");
552 return -1;
553 } 50 }
554 }
555 total++;
556
557 return 0;
558}
559
560static int
561process_mmap_event(event_t *event, unsigned long offset, unsigned long head)
562{
563 struct thread *thread;
564 struct map *map = map__new(&event->mmap, NULL, 0);
565
566 thread = threads__findnew(event->mmap.pid, &threads, &last_match);
567
568 dump_printf("%p [%p]: PERF_RECORD_MMAP %d: [%p(%p) @ %p]: %s\n",
569 (void *)(offset + head),
570 (void *)(long)(event->header.size),
571 event->mmap.pid,
572 (void *)(long)event->mmap.start,
573 (void *)(long)event->mmap.len,
574 (void *)(long)event->mmap.pgoff,
575 event->mmap.filename);
576
577 if (thread == NULL || map == NULL) {
578 dump_printf("problem processing PERF_RECORD_MMAP, skipping event.\n");
579 return 0; 51 return 0;
580 } 52 }
581 53
582 thread__insert_map(thread, map); 54 he = __hists__add_entry(self, al, NULL, 1);
583 total_mmap++; 55 if (he == NULL)
584 56 return -ENOMEM;
585 return 0;
586}
587
588static int
589process_comm_event(event_t *event, unsigned long offset, unsigned long head)
590{
591 struct thread *thread;
592
593 thread = threads__findnew(event->comm.pid, &threads, &last_match);
594 dump_printf("%p [%p]: PERF_RECORD_COMM: %s:%d\n",
595 (void *)(offset + head),
596 (void *)(long)(event->header.size),
597 event->comm.comm, event->comm.pid);
598
599 if (thread == NULL ||
600 thread__set_comm(thread, event->comm.comm)) {
601 dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n");
602 return -1;
603 }
604 total_comm++;
605 57
606 return 0; 58 return hist_entry__inc_addr_samples(he, al->addr);
607} 59}
608 60
609static int 61static int process_sample_event(event_t *event, struct perf_session *session)
610process_fork_event(event_t *event, unsigned long offset, unsigned long head)
611{ 62{
612 struct thread *thread; 63 struct addr_location al;
613 struct thread *parent; 64 struct sample_data data;
614
615 thread = threads__findnew(event->fork.pid, &threads, &last_match);
616 parent = threads__findnew(event->fork.ppid, &threads, &last_match);
617 dump_printf("%p [%p]: PERF_RECORD_FORK: %d:%d\n",
618 (void *)(offset + head),
619 (void *)(long)(event->header.size),
620 event->fork.pid, event->fork.ppid);
621
622 /*
623 * A thread clone will have the same PID for both
624 * parent and child.
625 */
626 if (thread == parent)
627 return 0;
628 65
629 if (!thread || !parent || thread__fork(thread, parent)) { 66 if (event__preprocess_sample(event, session, &al, &data, NULL) < 0) {
630 dump_printf("problem processing PERF_RECORD_FORK, skipping event.\n"); 67 pr_warning("problem processing %d event, skipping it.\n",
68 event->header.type);
631 return -1; 69 return -1;
632 } 70 }
633 total_fork++;
634
635 return 0;
636}
637
638static int
639process_event(event_t *event, unsigned long offset, unsigned long head)
640{
641 switch (event->header.type) {
642 case PERF_RECORD_SAMPLE:
643 return process_sample_event(event, offset, head);
644
645 case PERF_RECORD_MMAP:
646 return process_mmap_event(event, offset, head);
647
648 case PERF_RECORD_COMM:
649 return process_comm_event(event, offset, head);
650 71
651 case PERF_RECORD_FORK: 72 if (!al.filtered && hists__add_entry(&session->hists, &al)) {
652 return process_fork_event(event, offset, head); 73 pr_warning("problem incrementing symbol count, "
653 /* 74 "skipping event\n");
654 * We dont process them right now but they are fine:
655 */
656
657 case PERF_RECORD_THROTTLE:
658 case PERF_RECORD_UNTHROTTLE:
659 return 0;
660
661 default:
662 return -1; 75 return -1;
663 } 76 }
664 77
665 return 0; 78 return 0;
666} 79}
667 80
668static int 81static int objdump_line__print(struct objdump_line *self,
669parse_line(FILE *file, struct symbol *sym, u64 start, u64 len) 82 struct list_head *head,
83 struct hist_entry *he, u64 len)
670{ 84{
671 char *line = NULL, *tmp, *tmp2; 85 struct symbol *sym = he->ms.sym;
672 static const char *prev_line; 86 static const char *prev_line;
673 static const char *prev_color; 87 static const char *prev_color;
674 unsigned int offset;
675 size_t line_len;
676 s64 line_ip;
677 int ret;
678 char *c;
679 88
680 if (getline(&line, &line_len, file) < 0) 89 if (self->offset != -1) {
681 return -1;
682 if (!line)
683 return -1;
684
685 c = strchr(line, '\n');
686 if (c)
687 *c = 0;
688
689 line_ip = -1;
690 offset = 0;
691 ret = -2;
692
693 /*
694 * Strip leading spaces:
695 */
696 tmp = line;
697 while (*tmp) {
698 if (*tmp != ' ')
699 break;
700 tmp++;
701 }
702
703 if (*tmp) {
704 /*
705 * Parse hexa addresses followed by ':'
706 */
707 line_ip = strtoull(tmp, &tmp2, 16);
708 if (*tmp2 != ':')
709 line_ip = -1;
710 }
711
712 if (line_ip != -1) {
713 const char *path = NULL; 90 const char *path = NULL;
714 unsigned int hits = 0; 91 unsigned int hits = 0;
715 double percent = 0.0; 92 double percent = 0.0;
716 const char *color; 93 const char *color;
717 struct sym_ext *sym_ext = sym->priv; 94 struct sym_priv *priv = symbol__priv(sym);
718 95 struct sym_ext *sym_ext = priv->ext;
719 offset = line_ip - start; 96 struct sym_hist *h = priv->hist;
720 if (offset < len) 97 s64 offset = self->offset;
721 hits = sym->hist[offset]; 98 struct objdump_line *next = objdump__get_next_ip_line(head, self);
99
100 while (offset < (s64)len &&
101 (next == NULL || offset < next->offset)) {
102 if (sym_ext) {
103 if (path == NULL)
104 path = sym_ext[offset].path;
105 percent += sym_ext[offset].percent;
106 } else
107 hits += h->ip[offset];
108
109 ++offset;
110 }
722 111
723 if (offset < len && sym_ext) { 112 if (sym_ext == NULL && h->sum)
724 path = sym_ext[offset].path; 113 percent = 100.0 * hits / h->sum;
725 percent = sym_ext[offset].percent;
726 } else if (sym->hist_sum)
727 percent = 100.0 * hits / sym->hist_sum;
728 114
729 color = get_percent_color(percent); 115 color = get_percent_color(percent);
730 116
@@ -744,12 +130,12 @@ parse_line(FILE *file, struct symbol *sym, u64 start, u64 len)
744 130
745 color_fprintf(stdout, color, " %7.2f", percent); 131 color_fprintf(stdout, color, " %7.2f", percent);
746 printf(" : "); 132 printf(" : ");
747 color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", line); 133 color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", self->line);
748 } else { 134 } else {
749 if (!*line) 135 if (!*self->line)
750 printf(" :\n"); 136 printf(" :\n");
751 else 137 else
752 printf(" : %s\n", line); 138 printf(" : %s\n", self->line);
753 } 139 }
754 140
755 return 0; 141 return 0;
@@ -777,9 +163,10 @@ static void insert_source_line(struct sym_ext *sym_ext)
777 rb_insert_color(&sym_ext->node, &root_sym_ext); 163 rb_insert_color(&sym_ext->node, &root_sym_ext);
778} 164}
779 165
780static void free_source_line(struct symbol *sym, int len) 166static void free_source_line(struct hist_entry *he, int len)
781{ 167{
782 struct sym_ext *sym_ext = sym->priv; 168 struct sym_priv *priv = symbol__priv(he->ms.sym);
169 struct sym_ext *sym_ext = priv->ext;
783 int i; 170 int i;
784 171
785 if (!sym_ext) 172 if (!sym_ext)
@@ -789,26 +176,30 @@ static void free_source_line(struct symbol *sym, int len)
789 free(sym_ext[i].path); 176 free(sym_ext[i].path);
790 free(sym_ext); 177 free(sym_ext);
791 178
792 sym->priv = NULL; 179 priv->ext = NULL;
793 root_sym_ext = RB_ROOT; 180 root_sym_ext = RB_ROOT;
794} 181}
795 182
796/* Get the filename:line for the colored entries */ 183/* Get the filename:line for the colored entries */
797static void 184static void
798get_source_line(struct symbol *sym, u64 start, int len, const char *filename) 185get_source_line(struct hist_entry *he, int len, const char *filename)
799{ 186{
187 struct symbol *sym = he->ms.sym;
188 u64 start;
800 int i; 189 int i;
801 char cmd[PATH_MAX * 2]; 190 char cmd[PATH_MAX * 2];
802 struct sym_ext *sym_ext; 191 struct sym_ext *sym_ext;
192 struct sym_priv *priv = symbol__priv(sym);
193 struct sym_hist *h = priv->hist;
803 194
804 if (!sym->hist_sum) 195 if (!h->sum)
805 return; 196 return;
806 197
807 sym->priv = calloc(len, sizeof(struct sym_ext)); 198 sym_ext = priv->ext = calloc(len, sizeof(struct sym_ext));
808 if (!sym->priv) 199 if (!priv->ext)
809 return; 200 return;
810 201
811 sym_ext = sym->priv; 202 start = he->ms.map->unmap_ip(he->ms.map, sym->start);
812 203
813 for (i = 0; i < len; i++) { 204 for (i = 0; i < len; i++) {
814 char *path = NULL; 205 char *path = NULL;
@@ -816,7 +207,7 @@ get_source_line(struct symbol *sym, u64 start, int len, const char *filename)
816 u64 offset; 207 u64 offset;
817 FILE *fp; 208 FILE *fp;
818 209
819 sym_ext[i].percent = 100.0 * sym->hist[i] / sym->hist_sum; 210 sym_ext[i].percent = 100.0 * h->ip[i] / h->sum;
820 if (sym_ext[i].percent <= 0.5) 211 if (sym_ext[i].percent <= 0.5)
821 continue; 212 continue;
822 213
@@ -870,33 +261,42 @@ static void print_summary(const char *filename)
870 } 261 }
871} 262}
872 263
873static void annotate_sym(struct dso *dso, struct symbol *sym) 264static void hist_entry__print_hits(struct hist_entry *self)
874{ 265{
875 const char *filename = dso->name, *d_filename; 266 struct symbol *sym = self->ms.sym;
876 u64 start, end, len; 267 struct sym_priv *priv = symbol__priv(sym);
877 char command[PATH_MAX*2]; 268 struct sym_hist *h = priv->hist;
878 FILE *file; 269 u64 len = sym->end - sym->start, offset;
270
271 for (offset = 0; offset < len; ++offset)
272 if (h->ip[offset] != 0)
273 printf("%*Lx: %Lu\n", BITS_PER_LONG / 2,
274 sym->start + offset, h->ip[offset]);
275 printf("%*s: %Lu\n", BITS_PER_LONG / 2, "h->sum", h->sum);
276}
277
278static int hist_entry__tty_annotate(struct hist_entry *he)
279{
280 struct map *map = he->ms.map;
281 struct dso *dso = map->dso;
282 struct symbol *sym = he->ms.sym;
283 const char *filename = dso->long_name, *d_filename;
284 u64 len;
285 LIST_HEAD(head);
286 struct objdump_line *pos, *n;
287
288 if (hist_entry__annotate(he, &head) < 0)
289 return -1;
879 290
880 if (!filename)
881 return;
882 if (sym->module)
883 filename = sym->module->path;
884 else if (dso == kernel_dso)
885 filename = vmlinux_name;
886
887 start = sym->obj_start;
888 if (!start)
889 start = sym->start;
890 if (full_paths) 291 if (full_paths)
891 d_filename = filename; 292 d_filename = filename;
892 else 293 else
893 d_filename = basename(filename); 294 d_filename = basename(filename);
894 295
895 end = start + sym->end - sym->start + 1;
896 len = sym->end - sym->start; 296 len = sym->end - sym->start;
897 297
898 if (print_line) { 298 if (print_line) {
899 get_source_line(sym, start, len, filename); 299 get_source_line(he, len, filename);
900 print_summary(filename); 300 print_summary(filename);
901 } 301 }
902 302
@@ -904,173 +304,111 @@ static void annotate_sym(struct dso *dso, struct symbol *sym)
904 printf(" Percent | Source code & Disassembly of %s\n", d_filename); 304 printf(" Percent | Source code & Disassembly of %s\n", d_filename);
905 printf("------------------------------------------------\n"); 305 printf("------------------------------------------------\n");
906 306
907 if (verbose >= 2) 307 if (verbose)
908 printf("annotating [%p] %30s : [%p] %30s\n", dso, dso->name, sym, sym->name); 308 hist_entry__print_hits(he);
909
910 sprintf(command, "objdump --start-address=0x%016Lx --stop-address=0x%016Lx -dS %s|grep -v %s",
911 (u64)start, (u64)end, filename, filename);
912
913 if (verbose >= 3)
914 printf("doing: %s\n", command);
915
916 file = popen(command, "r");
917 if (!file)
918 return;
919 309
920 while (!feof(file)) { 310 list_for_each_entry_safe(pos, n, &head, node) {
921 if (parse_line(file, sym, start, len) < 0) 311 objdump_line__print(pos, &head, he, len);
922 break; 312 list_del(&pos->node);
313 objdump_line__free(pos);
923 } 314 }
924 315
925 pclose(file);
926 if (print_line) 316 if (print_line)
927 free_source_line(sym, len); 317 free_source_line(he, len);
318
319 return 0;
928} 320}
929 321
930static void find_annotations(void) 322static void hists__find_annotations(struct hists *self)
931{ 323{
932 struct rb_node *nd; 324 struct rb_node *first = rb_first(&self->entries), *nd = first;
933 struct dso *dso; 325 int key = KEY_RIGHT;
934 int count = 0;
935 326
936 list_for_each_entry(dso, &dsos, node) { 327 while (nd) {
328 struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
329 struct sym_priv *priv;
937 330
938 for (nd = rb_first(&dso->syms); nd; nd = rb_next(nd)) { 331 if (he->ms.sym == NULL || he->ms.map->dso->annotate_warned)
939 struct symbol *sym = rb_entry(nd, struct symbol, rb_node); 332 goto find_next;
333
334 priv = symbol__priv(he->ms.sym);
335 if (priv->hist == NULL) {
336find_next:
337 if (key == KEY_LEFT)
338 nd = rb_prev(nd);
339 else
340 nd = rb_next(nd);
341 continue;
342 }
940 343
941 if (sym->hist) { 344 if (use_browser > 0) {
942 annotate_sym(dso, sym); 345 key = hist_entry__tui_annotate(he);
943 count++; 346 if (is_exit_key(key))
347 break;
348 switch (key) {
349 case KEY_RIGHT:
350 case '\t':
351 nd = rb_next(nd);
352 break;
353 case KEY_LEFT:
354 if (nd == first)
355 continue;
356 nd = rb_prev(nd);
357 default:
358 break;
944 } 359 }
360 } else {
361 hist_entry__tty_annotate(he);
362 nd = rb_next(nd);
363 /*
364 * Since we have a hist_entry per IP for the same
365 * symbol, free he->ms.sym->hist to signal we already
366 * processed this symbol.
367 */
368 free(priv->hist);
369 priv->hist = NULL;
945 } 370 }
946 } 371 }
947
948 if (!count)
949 printf(" Error: symbol '%s' not present amongst the samples.\n", sym_hist_filter);
950} 372}
951 373
374static struct perf_event_ops event_ops = {
375 .sample = process_sample_event,
376 .mmap = event__process_mmap,
377 .comm = event__process_comm,
378 .fork = event__process_task,
379};
380
952static int __cmd_annotate(void) 381static int __cmd_annotate(void)
953{ 382{
954 int ret, rc = EXIT_FAILURE; 383 int ret;
955 unsigned long offset = 0; 384 struct perf_session *session;
956 unsigned long head = 0;
957 struct stat input_stat;
958 event_t *event;
959 uint32_t size;
960 char *buf;
961
962 register_idle_thread(&threads, &last_match);
963
964 input = open(input_name, O_RDONLY);
965 if (input < 0) {
966 perror("failed to open file");
967 exit(-1);
968 }
969
970 ret = fstat(input, &input_stat);
971 if (ret < 0) {
972 perror("failed to stat file");
973 exit(-1);
974 }
975
976 if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) {
977 fprintf(stderr, "file: %s not owned by current user or root\n", input_name);
978 exit(-1);
979 }
980
981 if (!input_stat.st_size) {
982 fprintf(stderr, "zero-sized file, nothing to do!\n");
983 exit(0);
984 }
985
986 if (load_kernel() < 0) {
987 perror("failed to load kernel symbols");
988 return EXIT_FAILURE;
989 }
990
991remap:
992 buf = (char *)mmap(NULL, page_size * mmap_window, PROT_READ,
993 MAP_SHARED, input, offset);
994 if (buf == MAP_FAILED) {
995 perror("failed to mmap file");
996 exit(-1);
997 }
998
999more:
1000 event = (event_t *)(buf + head);
1001
1002 size = event->header.size;
1003 if (!size)
1004 size = 8;
1005
1006 if (head + event->header.size >= page_size * mmap_window) {
1007 unsigned long shift = page_size * (head / page_size);
1008 int munmap_ret;
1009
1010 munmap_ret = munmap(buf, page_size * mmap_window);
1011 assert(munmap_ret == 0);
1012
1013 offset += shift;
1014 head -= shift;
1015 goto remap;
1016 }
1017
1018 size = event->header.size;
1019
1020 dump_printf("%p [%p]: event: %d\n",
1021 (void *)(offset + head),
1022 (void *)(long)event->header.size,
1023 event->header.type);
1024
1025 if (!size || process_event(event, offset, head) < 0) {
1026
1027 dump_printf("%p [%p]: skipping unknown header type: %d\n",
1028 (void *)(offset + head),
1029 (void *)(long)(event->header.size),
1030 event->header.type);
1031
1032 total_unknown++;
1033 385
1034 /* 386 session = perf_session__new(input_name, O_RDONLY, force, false);
1035 * assume we lost track of the stream, check alignment, and 387 if (session == NULL)
1036 * increment a single u64 in the hope to catch on again 'soon'. 388 return -ENOMEM;
1037 */
1038 389
1039 if (unlikely(head & 7)) 390 ret = perf_session__process_events(session, &event_ops);
1040 head &= ~7ULL; 391 if (ret)
392 goto out_delete;
1041 393
1042 size = 8; 394 if (dump_trace) {
395 perf_session__fprintf_nr_events(session, stdout);
396 goto out_delete;
1043 } 397 }
1044 398
1045 head += size; 399 if (verbose > 3)
1046 400 perf_session__fprintf(session, stdout);
1047 if (offset + head < (unsigned long)input_stat.st_size)
1048 goto more;
1049 401
1050 rc = EXIT_SUCCESS; 402 if (verbose > 2)
1051 close(input); 403 perf_session__fprintf_dsos(session, stdout);
1052 404
1053 dump_printf(" IP events: %10ld\n", total); 405 hists__collapse_resort(&session->hists);
1054 dump_printf(" mmap events: %10ld\n", total_mmap); 406 hists__output_resort(&session->hists);
1055 dump_printf(" comm events: %10ld\n", total_comm); 407 hists__find_annotations(&session->hists);
1056 dump_printf(" fork events: %10ld\n", total_fork); 408out_delete:
1057 dump_printf(" unknown events: %10ld\n", total_unknown); 409 perf_session__delete(session);
1058
1059 if (dump_trace)
1060 return 0;
1061 410
1062 if (verbose >= 3) 411 return ret;
1063 threads__fprintf(stdout, &threads);
1064
1065 if (verbose >= 2)
1066 dsos__fprintf(stdout);
1067
1068 collapse__resort();
1069 output__resort();
1070
1071 find_annotations();
1072
1073 return rc;
1074} 412}
1075 413
1076static const char * const annotate_usage[] = { 414static const char * const annotate_usage[] = {
@@ -1081,15 +419,18 @@ static const char * const annotate_usage[] = {
1081static const struct option options[] = { 419static const struct option options[] = {
1082 OPT_STRING('i', "input", &input_name, "file", 420 OPT_STRING('i', "input", &input_name, "file",
1083 "input file name"), 421 "input file name"),
422 OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
423 "only consider symbols in these dsos"),
1084 OPT_STRING('s', "symbol", &sym_hist_filter, "symbol", 424 OPT_STRING('s', "symbol", &sym_hist_filter, "symbol",
1085 "symbol to annotate"), 425 "symbol to annotate"),
1086 OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), 426 OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
1087 OPT_BOOLEAN('v', "verbose", &verbose, 427 OPT_INCR('v', "verbose", &verbose,
1088 "be more verbose (show symbol address, etc)"), 428 "be more verbose (show symbol address, etc)"),
1089 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, 429 OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
1090 "dump raw trace in ASCII"), 430 "dump raw trace in ASCII"),
1091 OPT_STRING('k', "vmlinux", &vmlinux_name, "file", "vmlinux pathname"), 431 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1092 OPT_BOOLEAN('m', "modules", &modules, 432 "file", "vmlinux pathname"),
433 OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
1093 "load module symbols - WARNING: use only with -k and LIVE kernel"), 434 "load module symbols - WARNING: use only with -k and LIVE kernel"),
1094 OPT_BOOLEAN('l', "print-line", &print_line, 435 OPT_BOOLEAN('l', "print-line", &print_line,
1095 "print matching source lines (may be slow)"), 436 "print matching source lines (may be slow)"),
@@ -1098,30 +439,19 @@ static const struct option options[] = {
1098 OPT_END() 439 OPT_END()
1099}; 440};
1100 441
1101static void setup_sorting(void)
1102{
1103 char *tmp, *tok, *str = strdup(sort_order);
1104
1105 for (tok = strtok_r(str, ", ", &tmp);
1106 tok; tok = strtok_r(NULL, ", ", &tmp)) {
1107 if (sort_dimension__add(tok) < 0) {
1108 error("Unknown --sort key: `%s'", tok);
1109 usage_with_options(annotate_usage, options);
1110 }
1111 }
1112
1113 free(str);
1114}
1115
1116int cmd_annotate(int argc, const char **argv, const char *prefix __used) 442int cmd_annotate(int argc, const char **argv, const char *prefix __used)
1117{ 443{
1118 symbol__init(); 444 argc = parse_options(argc, argv, options, annotate_usage, 0);
1119 445
1120 page_size = getpagesize(); 446 setup_browser();
1121 447
1122 argc = parse_options(argc, argv, options, annotate_usage, 0); 448 symbol_conf.priv_size = sizeof(struct sym_priv);
449 symbol_conf.try_vmlinux_path = true;
1123 450
1124 setup_sorting(); 451 if (symbol__init() < 0)
452 return -1;
453
454 setup_sorting(annotate_usage, options);
1125 455
1126 if (argc) { 456 if (argc) {
1127 /* 457 /*
@@ -1134,10 +464,10 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __used)
1134 sym_hist_filter = argv[0]; 464 sym_hist_filter = argv[0];
1135 } 465 }
1136 466
1137 if (!sym_hist_filter) 467 if (field_sep && *field_sep == '.') {
1138 usage_with_options(annotate_usage, options); 468 pr_err("'.' is the only non valid --field-separator argument\n");
1139 469 return -1;
1140 setup_pager(); 470 }
1141 471
1142 return __cmd_annotate(); 472 return __cmd_annotate();
1143} 473}
generated by cgit v1.2.2 (git 2.25.0) at 2025-11-12 20:48:09 -0500