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Merge tag 'block-5.9-2020-08-14' of git://git.kernel.dk/linux-block
[linux/fpc-iii.git] / tools / perf / util / event.c
blob317a26571845857f8dbaedac4afe943e59b1dcc9
1 #include <errno.h>
2 #include <fcntl.h>
3 #include <inttypes.h>
4 #include <linux/kernel.h>
5 #include <linux/types.h>
6 #include <perf/cpumap.h>
7 #include <sys/types.h>
8 #include <sys/stat.h>
9 #include <unistd.h>
10 #include <uapi/linux/mman.h> /* To get things like MAP_HUGETLB even on older libc headers */
11 #include <linux/perf_event.h>
12 #include <linux/zalloc.h>
13 #include "cpumap.h"
14 #include "dso.h"
15 #include "event.h"
16 #include "debug.h"
17 #include "hist.h"
18 #include "machine.h"
19 #include "sort.h"
20 #include "string2.h"
21 #include "strlist.h"
22 #include "thread.h"
23 #include "thread_map.h"
24 #include "time-utils.h"
25 #include <linux/ctype.h>
26 #include "map.h"
27 #include "util/namespaces.h"
28 #include "symbol.h"
29 #include "symbol/kallsyms.h"
30 #include "asm/bug.h"
31 #include "stat.h"
32 #include "session.h"
33 #include "bpf-event.h"
34 #include "print_binary.h"
35 #include "tool.h"
36 #include "../perf.h"
37
38 static const char *perf_event__names[] = {
39 [0] = "TOTAL",
40 [PERF_RECORD_MMAP] = "MMAP",
41 [PERF_RECORD_MMAP2] = "MMAP2",
42 [PERF_RECORD_LOST] = "LOST",
43 [PERF_RECORD_COMM] = "COMM",
44 [PERF_RECORD_EXIT] = "EXIT",
45 [PERF_RECORD_THROTTLE] = "THROTTLE",
46 [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE",
47 [PERF_RECORD_FORK] = "FORK",
48 [PERF_RECORD_READ] = "READ",
49 [PERF_RECORD_SAMPLE] = "SAMPLE",
50 [PERF_RECORD_AUX] = "AUX",
51 [PERF_RECORD_ITRACE_START] = "ITRACE_START",
52 [PERF_RECORD_LOST_SAMPLES] = "LOST_SAMPLES",
53 [PERF_RECORD_SWITCH] = "SWITCH",
54 [PERF_RECORD_SWITCH_CPU_WIDE] = "SWITCH_CPU_WIDE",
55 [PERF_RECORD_NAMESPACES] = "NAMESPACES",
56 [PERF_RECORD_KSYMBOL] = "KSYMBOL",
57 [PERF_RECORD_BPF_EVENT] = "BPF_EVENT",
58 [PERF_RECORD_CGROUP] = "CGROUP",
59 [PERF_RECORD_TEXT_POKE] = "TEXT_POKE",
60 [PERF_RECORD_HEADER_ATTR] = "ATTR",
61 [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE",
62 [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA",
63 [PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID",
64 [PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND",
65 [PERF_RECORD_ID_INDEX] = "ID_INDEX",
66 [PERF_RECORD_AUXTRACE_INFO] = "AUXTRACE_INFO",
67 [PERF_RECORD_AUXTRACE] = "AUXTRACE",
68 [PERF_RECORD_AUXTRACE_ERROR] = "AUXTRACE_ERROR",
69 [PERF_RECORD_THREAD_MAP] = "THREAD_MAP",
70 [PERF_RECORD_CPU_MAP] = "CPU_MAP",
71 [PERF_RECORD_STAT_CONFIG] = "STAT_CONFIG",
72 [PERF_RECORD_STAT] = "STAT",
73 [PERF_RECORD_STAT_ROUND] = "STAT_ROUND",
74 [PERF_RECORD_EVENT_UPDATE] = "EVENT_UPDATE",
75 [PERF_RECORD_TIME_CONV] = "TIME_CONV",
76 [PERF_RECORD_HEADER_FEATURE] = "FEATURE",
77 [PERF_RECORD_COMPRESSED] = "COMPRESSED",
78 };
79
80 const char *perf_event__name(unsigned int id)
81 {
82 if (id >= ARRAY_SIZE(perf_event__names))
83 return "INVALID";
84 if (!perf_event__names[id])
85 return "UNKNOWN";
86 return perf_event__names[id];
87 }
88
89 struct process_symbol_args {
90 const char *name;
91 u64 start;
92 };
93
94 static int find_symbol_cb(void *arg, const char *name, char type,
95 u64 start)
96 {
97 struct process_symbol_args *args = arg;
98
99 /*
100 * Must be a function or at least an alias, as in PARISC64, where "_text" is
101 * an 'A' to the same address as "_stext".
102 */
103 if (!(kallsyms__is_function(type) ||
104 type == 'A') || strcmp(name, args->name))
105 return 0;
106
107 args->start = start;
108 return 1;
109 }
110
111 int kallsyms__get_function_start(const char *kallsyms_filename,
112 const char *symbol_name, u64 *addr)
113 {
114 struct process_symbol_args args = { .name = symbol_name, };
115
116 if (kallsyms__parse(kallsyms_filename, &args, find_symbol_cb) <= 0)
117 return -1;
118
119 *addr = args.start;
120 return 0;
121 }
122
123 void perf_event__read_stat_config(struct perf_stat_config *config,
124 struct perf_record_stat_config *event)
125 {
126 unsigned i;
127
128 for (i = 0; i < event->nr; i++) {
129
130 switch (event->data[i].tag) {
131 #define CASE(__term, __val) \
132 case PERF_STAT_CONFIG_TERM__##__term: \
133 config->__val = event->data[i].val; \
134 break;
135
136 CASE(AGGR_MODE, aggr_mode)
137 CASE(SCALE, scale)
138 CASE(INTERVAL, interval)
139 #undef CASE
140 default:
141 pr_warning("unknown stat config term %" PRI_lu64 "\n",
142 event->data[i].tag);
143 }
144 }
145 }
146
147 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp)
148 {
149 const char *s;
150
151 if (event->header.misc & PERF_RECORD_MISC_COMM_EXEC)
152 s = " exec";
153 else
154 s = "";
155
156 return fprintf(fp, "%s: %s:%d/%d\n", s, event->comm.comm, event->comm.pid, event->comm.tid);
157 }
158
159 size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp)
160 {
161 size_t ret = 0;
162 struct perf_ns_link_info *ns_link_info;
163 u32 nr_namespaces, idx;
164
165 ns_link_info = event->namespaces.link_info;
166 nr_namespaces = event->namespaces.nr_namespaces;
167
168 ret += fprintf(fp, " %d/%d - nr_namespaces: %u\n\t\t[",
169 event->namespaces.pid,
170 event->namespaces.tid,
171 nr_namespaces);
172
173 for (idx = 0; idx < nr_namespaces; idx++) {
174 if (idx && (idx % 4 == 0))
175 ret += fprintf(fp, "\n\t\t ");
176
177 ret += fprintf(fp, "%u/%s: %" PRIu64 "/%#" PRIx64 "%s", idx,
178 perf_ns__name(idx), (u64)ns_link_info[idx].dev,
179 (u64)ns_link_info[idx].ino,
180 ((idx + 1) != nr_namespaces) ? ", " : "]\n");
181 }
182
183 return ret;
184 }
185
186 size_t perf_event__fprintf_cgroup(union perf_event *event, FILE *fp)
187 {
188 return fprintf(fp, " cgroup: %" PRI_lu64 " %s\n",
189 event->cgroup.id, event->cgroup.path);
190 }
191
192 int perf_event__process_comm(struct perf_tool *tool __maybe_unused,
193 union perf_event *event,
194 struct perf_sample *sample,
195 struct machine *machine)
196 {
197 return machine__process_comm_event(machine, event, sample);
198 }
199
200 int perf_event__process_namespaces(struct perf_tool *tool __maybe_unused,
201 union perf_event *event,
202 struct perf_sample *sample,
203 struct machine *machine)
204 {
205 return machine__process_namespaces_event(machine, event, sample);
206 }
207
208 int perf_event__process_cgroup(struct perf_tool *tool __maybe_unused,
209 union perf_event *event,
210 struct perf_sample *sample,
211 struct machine *machine)
212 {
213 return machine__process_cgroup_event(machine, event, sample);
214 }
215
216 int perf_event__process_lost(struct perf_tool *tool __maybe_unused,
217 union perf_event *event,
218 struct perf_sample *sample,
219 struct machine *machine)
220 {
221 return machine__process_lost_event(machine, event, sample);
222 }
223
224 int perf_event__process_aux(struct perf_tool *tool __maybe_unused,
225 union perf_event *event,
226 struct perf_sample *sample __maybe_unused,
227 struct machine *machine)
228 {
229 return machine__process_aux_event(machine, event);
230 }
231
232 int perf_event__process_itrace_start(struct perf_tool *tool __maybe_unused,
233 union perf_event *event,
234 struct perf_sample *sample __maybe_unused,
235 struct machine *machine)
236 {
237 return machine__process_itrace_start_event(machine, event);
238 }
239
240 int perf_event__process_lost_samples(struct perf_tool *tool __maybe_unused,
241 union perf_event *event,
242 struct perf_sample *sample,
243 struct machine *machine)
244 {
245 return machine__process_lost_samples_event(machine, event, sample);
246 }
247
248 int perf_event__process_switch(struct perf_tool *tool __maybe_unused,
249 union perf_event *event,
250 struct perf_sample *sample __maybe_unused,
251 struct machine *machine)
252 {
253 return machine__process_switch_event(machine, event);
254 }
255
256 int perf_event__process_ksymbol(struct perf_tool *tool __maybe_unused,
257 union perf_event *event,
258 struct perf_sample *sample __maybe_unused,
259 struct machine *machine)
260 {
261 return machine__process_ksymbol(machine, event, sample);
262 }
263
264 int perf_event__process_bpf(struct perf_tool *tool __maybe_unused,
265 union perf_event *event,
266 struct perf_sample *sample,
267 struct machine *machine)
268 {
269 return machine__process_bpf(machine, event, sample);
270 }
271
272 int perf_event__process_text_poke(struct perf_tool *tool __maybe_unused,
273 union perf_event *event,
274 struct perf_sample *sample,
275 struct machine *machine)
276 {
277 return machine__process_text_poke(machine, event, sample);
278 }
279
280 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp)
281 {
282 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64 "]: %c %s\n",
283 event->mmap.pid, event->mmap.tid, event->mmap.start,
284 event->mmap.len, event->mmap.pgoff,
285 (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x',
286 event->mmap.filename);
287 }
288
289 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp)
290 {
291 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64
292 " %02x:%02x %"PRI_lu64" %"PRI_lu64"]: %c%c%c%c %s\n",
293 event->mmap2.pid, event->mmap2.tid, event->mmap2.start,
294 event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj,
295 event->mmap2.min, event->mmap2.ino,
296 event->mmap2.ino_generation,
297 (event->mmap2.prot & PROT_READ) ? 'r' : '-',
298 (event->mmap2.prot & PROT_WRITE) ? 'w' : '-',
299 (event->mmap2.prot & PROT_EXEC) ? 'x' : '-',
300 (event->mmap2.flags & MAP_SHARED) ? 's' : 'p',
301 event->mmap2.filename);
302 }
303
304 size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp)
305 {
306 struct perf_thread_map *threads = thread_map__new_event(&event->thread_map);
307 size_t ret;
308
309 ret = fprintf(fp, " nr: ");
310
311 if (threads)
312 ret += thread_map__fprintf(threads, fp);
313 else
314 ret += fprintf(fp, "failed to get threads from event\n");
315
316 perf_thread_map__put(threads);
317 return ret;
318 }
319
320 size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp)
321 {
322 struct perf_cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data);
323 size_t ret;
324
325 ret = fprintf(fp, ": ");
326
327 if (cpus)
328 ret += cpu_map__fprintf(cpus, fp);
329 else
330 ret += fprintf(fp, "failed to get cpumap from event\n");
331
332 perf_cpu_map__put(cpus);
333 return ret;
334 }
335
336 int perf_event__process_mmap(struct perf_tool *tool __maybe_unused,
337 union perf_event *event,
338 struct perf_sample *sample,
339 struct machine *machine)
340 {
341 return machine__process_mmap_event(machine, event, sample);
342 }
343
344 int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused,
345 union perf_event *event,
346 struct perf_sample *sample,
347 struct machine *machine)
348 {
349 return machine__process_mmap2_event(machine, event, sample);
350 }
351
352 size_t perf_event__fprintf_task(union perf_event *event, FILE *fp)
353 {
354 return fprintf(fp, "(%d:%d):(%d:%d)\n",
355 event->fork.pid, event->fork.tid,
356 event->fork.ppid, event->fork.ptid);
357 }
358
359 int perf_event__process_fork(struct perf_tool *tool __maybe_unused,
360 union perf_event *event,
361 struct perf_sample *sample,
362 struct machine *machine)
363 {
364 return machine__process_fork_event(machine, event, sample);
365 }
366
367 int perf_event__process_exit(struct perf_tool *tool __maybe_unused,
368 union perf_event *event,
369 struct perf_sample *sample,
370 struct machine *machine)
371 {
372 return machine__process_exit_event(machine, event, sample);
373 }
374
375 size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp)
376 {
377 return fprintf(fp, " offset: %#"PRI_lx64" size: %#"PRI_lx64" flags: %#"PRI_lx64" [%s%s%s]\n",
378 event->aux.aux_offset, event->aux.aux_size,
379 event->aux.flags,
380 event->aux.flags & PERF_AUX_FLAG_TRUNCATED ? "T" : "",
381 event->aux.flags & PERF_AUX_FLAG_OVERWRITE ? "O" : "",
382 event->aux.flags & PERF_AUX_FLAG_PARTIAL ? "P" : "");
383 }
384
385 size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp)
386 {
387 return fprintf(fp, " pid: %u tid: %u\n",
388 event->itrace_start.pid, event->itrace_start.tid);
389 }
390
391 size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp)
392 {
393 bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT;
394 const char *in_out = !out ? "IN " :
395 !(event->header.misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT) ?
396 "OUT " : "OUT preempt";
397
398 if (event->header.type == PERF_RECORD_SWITCH)
399 return fprintf(fp, " %s\n", in_out);
400
401 return fprintf(fp, " %s %s pid/tid: %5u/%-5u\n",
402 in_out, out ? "next" : "prev",
403 event->context_switch.next_prev_pid,
404 event->context_switch.next_prev_tid);
405 }
406
407 static size_t perf_event__fprintf_lost(union perf_event *event, FILE *fp)
408 {
409 return fprintf(fp, " lost %" PRI_lu64 "\n", event->lost.lost);
410 }
411
412 size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp)
413 {
414 return fprintf(fp, " addr %" PRI_lx64 " len %u type %u flags 0x%x name %s\n",
415 event->ksymbol.addr, event->ksymbol.len,
416 event->ksymbol.ksym_type,
417 event->ksymbol.flags, event->ksymbol.name);
418 }
419
420 size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp)
421 {
422 return fprintf(fp, " type %u, flags %u, id %u\n",
423 event->bpf.type, event->bpf.flags, event->bpf.id);
424 }
425
426 static int text_poke_printer(enum binary_printer_ops op, unsigned int val,
427 void *extra, FILE *fp)
428 {
429 bool old = *(bool *)extra;
430
431 switch ((int)op) {
432 case BINARY_PRINT_LINE_BEGIN:
433 return fprintf(fp, " %s bytes:", old ? "Old" : "New");
434 case BINARY_PRINT_NUM_DATA:
435 return fprintf(fp, " %02x", val);
436 case BINARY_PRINT_LINE_END:
437 return fprintf(fp, "\n");
438 default:
439 return 0;
440 }
441 }
442
443 size_t perf_event__fprintf_text_poke(union perf_event *event, struct machine *machine, FILE *fp)
444 {
445 struct perf_record_text_poke_event *tp = &event->text_poke;
446 size_t ret;
447 bool old;
448
449 ret = fprintf(fp, " %" PRI_lx64 " ", tp->addr);
450 if (machine) {
451 struct addr_location al;
452
453 al.map = maps__find(&machine->kmaps, tp->addr);
454 if (al.map && map__load(al.map) >= 0) {
455 al.addr = al.map->map_ip(al.map, tp->addr);
456 al.sym = map__find_symbol(al.map, al.addr);
457 if (al.sym)
458 ret += symbol__fprintf_symname_offs(al.sym, &al, fp);
459 }
460 }
461 ret += fprintf(fp, " old len %u new len %u\n", tp->old_len, tp->new_len);
462 old = true;
463 ret += binary__fprintf(tp->bytes, tp->old_len, 16, text_poke_printer,
464 &old, fp);
465 old = false;
466 ret += binary__fprintf(tp->bytes + tp->old_len, tp->new_len, 16,
467 text_poke_printer, &old, fp);
468 return ret;
469 }
470
471 size_t perf_event__fprintf(union perf_event *event, struct machine *machine, FILE *fp)
472 {
473 size_t ret = fprintf(fp, "PERF_RECORD_%s",
474 perf_event__name(event->header.type));
475
476 switch (event->header.type) {
477 case PERF_RECORD_COMM:
478 ret += perf_event__fprintf_comm(event, fp);
479 break;
480 case PERF_RECORD_FORK:
481 case PERF_RECORD_EXIT:
482 ret += perf_event__fprintf_task(event, fp);
483 break;
484 case PERF_RECORD_MMAP:
485 ret += perf_event__fprintf_mmap(event, fp);
486 break;
487 case PERF_RECORD_NAMESPACES:
488 ret += perf_event__fprintf_namespaces(event, fp);
489 break;
490 case PERF_RECORD_CGROUP:
491 ret += perf_event__fprintf_cgroup(event, fp);
492 break;
493 case PERF_RECORD_MMAP2:
494 ret += perf_event__fprintf_mmap2(event, fp);
495 break;
496 case PERF_RECORD_AUX:
497 ret += perf_event__fprintf_aux(event, fp);
498 break;
499 case PERF_RECORD_ITRACE_START:
500 ret += perf_event__fprintf_itrace_start(event, fp);
501 break;
502 case PERF_RECORD_SWITCH:
503 case PERF_RECORD_SWITCH_CPU_WIDE:
504 ret += perf_event__fprintf_switch(event, fp);
505 break;
506 case PERF_RECORD_LOST:
507 ret += perf_event__fprintf_lost(event, fp);
508 break;
509 case PERF_RECORD_KSYMBOL:
510 ret += perf_event__fprintf_ksymbol(event, fp);
511 break;
512 case PERF_RECORD_BPF_EVENT:
513 ret += perf_event__fprintf_bpf(event, fp);
514 break;
515 case PERF_RECORD_TEXT_POKE:
516 ret += perf_event__fprintf_text_poke(event, machine, fp);
517 break;
518 default:
519 ret += fprintf(fp, "\n");
520 }
521
522 return ret;
523 }
524
525 int perf_event__process(struct perf_tool *tool __maybe_unused,
526 union perf_event *event,
527 struct perf_sample *sample,
528 struct machine *machine)
529 {
530 return machine__process_event(machine, event, sample);
531 }
532
533 struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
534 struct addr_location *al)
535 {
536 struct maps *maps = thread->maps;
537 struct machine *machine = maps->machine;
538 bool load_map = false;
539
540 al->maps = maps;
541 al->thread = thread;
542 al->addr = addr;
543 al->cpumode = cpumode;
544 al->filtered = 0;
545
546 if (machine == NULL) {
547 al->map = NULL;
548 return NULL;
549 }
550
551 if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) {
552 al->level = 'k';
553 al->maps = maps = &machine->kmaps;
554 load_map = true;
555 } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) {
556 al->level = '.';
557 } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) {
558 al->level = 'g';
559 al->maps = maps = &machine->kmaps;
560 load_map = true;
561 } else if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) {
562 al->level = 'u';
563 } else {
564 al->level = 'H';
565 al->map = NULL;
566
567 if ((cpumode == PERF_RECORD_MISC_GUEST_USER ||
568 cpumode == PERF_RECORD_MISC_GUEST_KERNEL) &&
569 !perf_guest)
570 al->filtered |= (1 << HIST_FILTER__GUEST);
571 if ((cpumode == PERF_RECORD_MISC_USER ||
572 cpumode == PERF_RECORD_MISC_KERNEL) &&
573 !perf_host)
574 al->filtered |= (1 << HIST_FILTER__HOST);
575
576 return NULL;
577 }
578
579 al->map = maps__find(maps, al->addr);
580 if (al->map != NULL) {
581 /*
582 * Kernel maps might be changed when loading symbols so loading
583 * must be done prior to using kernel maps.
584 */
585 if (load_map)
586 map__load(al->map);
587 al->addr = al->map->map_ip(al->map, al->addr);
588 }
589
590 return al->map;
591 }
592
593 /*
594 * For branch stacks or branch samples, the sample cpumode might not be correct
595 * because it applies only to the sample 'ip' and not necessary to 'addr' or
596 * branch stack addresses. If possible, use a fallback to deal with those cases.
597 */
598 struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr,
599 struct addr_location *al)
600 {
601 struct map *map = thread__find_map(thread, cpumode, addr, al);
602 struct machine *machine = thread->maps->machine;
603 u8 addr_cpumode = machine__addr_cpumode(machine, cpumode, addr);
604
605 if (map || addr_cpumode == cpumode)
606 return map;
607
608 return thread__find_map(thread, addr_cpumode, addr, al);
609 }
610
611 struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
612 u64 addr, struct addr_location *al)
613 {
614 al->sym = NULL;
615 if (thread__find_map(thread, cpumode, addr, al))
616 al->sym = map__find_symbol(al->map, al->addr);
617 return al->sym;
618 }
619
620 struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode,
621 u64 addr, struct addr_location *al)
622 {
623 al->sym = NULL;
624 if (thread__find_map_fb(thread, cpumode, addr, al))
625 al->sym = map__find_symbol(al->map, al->addr);
626 return al->sym;
627 }
628
629 /*
630 * Callers need to drop the reference to al->thread, obtained in
631 * machine__findnew_thread()
632 */
633 int machine__resolve(struct machine *machine, struct addr_location *al,
634 struct perf_sample *sample)
635 {
636 struct thread *thread = machine__findnew_thread(machine, sample->pid,
637 sample->tid);
638
639 if (thread == NULL)
640 return -1;
641
642 dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid);
643 thread__find_map(thread, sample->cpumode, sample->ip, al);
644 dump_printf(" ...... dso: %s\n",
645 al->map ? al->map->dso->long_name :
646 al->level == 'H' ? "[hypervisor]" : "<not found>");
647
648 if (thread__is_filtered(thread))
649 al->filtered |= (1 << HIST_FILTER__THREAD);
650
651 al->sym = NULL;
652 al->cpu = sample->cpu;
653 al->socket = -1;
654 al->srcline = NULL;
655
656 if (al->cpu >= 0) {
657 struct perf_env *env = machine->env;
658
659 if (env && env->cpu)
660 al->socket = env->cpu[al->cpu].socket_id;
661 }
662
663 if (al->map) {
664 struct dso *dso = al->map->dso;
665
666 if (symbol_conf.dso_list &&
667 (!dso || !(strlist__has_entry(symbol_conf.dso_list,
668 dso->short_name) ||
669 (dso->short_name != dso->long_name &&
670 strlist__has_entry(symbol_conf.dso_list,
671 dso->long_name))))) {
672 al->filtered |= (1 << HIST_FILTER__DSO);
673 }
674
675 al->sym = map__find_symbol(al->map, al->addr);
676 }
677
678 if (symbol_conf.sym_list) {
679 int ret = 0;
680 char al_addr_str[32];
681 size_t sz = sizeof(al_addr_str);
682
683 if (al->sym) {
684 ret = strlist__has_entry(symbol_conf.sym_list,
685 al->sym->name);
686 }
687 if (!ret && al->sym) {
688 snprintf(al_addr_str, sz, "0x%"PRIx64,
689 al->map->unmap_ip(al->map, al->sym->start));
690 ret = strlist__has_entry(symbol_conf.sym_list,
691 al_addr_str);
692 }
693 if (!ret)
694 al->filtered |= (1 << HIST_FILTER__SYMBOL);
695 }
696
697 return 0;
698 }
699
700 /*
701 * The preprocess_sample method will return with reference counts for the
702 * in it, when done using (and perhaps getting ref counts if needing to
703 * keep a pointer to one of those entries) it must be paired with
704 * addr_location__put(), so that the refcounts can be decremented.
705 */
706 void addr_location__put(struct addr_location *al)
707 {
708 thread__zput(al->thread);
709 }
710
711 bool is_bts_event(struct perf_event_attr *attr)
712 {
713 return attr->type == PERF_TYPE_HARDWARE &&
714 (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) &&
715 attr->sample_period == 1;
716 }
717
718 bool sample_addr_correlates_sym(struct perf_event_attr *attr)
719 {
720 if (attr->type == PERF_TYPE_SOFTWARE &&
721 (attr->config == PERF_COUNT_SW_PAGE_FAULTS ||
722 attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN ||
723 attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ))
724 return true;
725
726 if (is_bts_event(attr))
727 return true;
728
729 return false;
730 }
731
732 void thread__resolve(struct thread *thread, struct addr_location *al,
733 struct perf_sample *sample)
734 {
735 thread__find_map_fb(thread, sample->cpumode, sample->addr, al);
736
737 al->cpu = sample->cpu;
738 al->sym = NULL;
739
740 if (al->map)
741 al->sym = map__find_symbol(al->map, al->addr);
742 }
Linux with added FPC-III support