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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 "tool.h"
35#include "../perf.h"
36
37static const char *perf_event__names[] = {
38 [0] = "TOTAL",
39 [PERF_RECORD_MMAP] = "MMAP",
40 [PERF_RECORD_MMAP2] = "MMAP2",
41 [PERF_RECORD_LOST] = "LOST",
42 [PERF_RECORD_COMM] = "COMM",
43 [PERF_RECORD_EXIT] = "EXIT",
44 [PERF_RECORD_THROTTLE] = "THROTTLE",
45 [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE",
46 [PERF_RECORD_FORK] = "FORK",
47 [PERF_RECORD_READ] = "READ",
48 [PERF_RECORD_SAMPLE] = "SAMPLE",
49 [PERF_RECORD_AUX] = "AUX",
50 [PERF_RECORD_ITRACE_START] = "ITRACE_START",
51 [PERF_RECORD_LOST_SAMPLES] = "LOST_SAMPLES",
52 [PERF_RECORD_SWITCH] = "SWITCH",
53 [PERF_RECORD_SWITCH_CPU_WIDE] = "SWITCH_CPU_WIDE",
54 [PERF_RECORD_NAMESPACES] = "NAMESPACES",
55 [PERF_RECORD_KSYMBOL] = "KSYMBOL",
56 [PERF_RECORD_BPF_EVENT] = "BPF_EVENT",
57 [PERF_RECORD_HEADER_ATTR] = "ATTR",
58 [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE",
59 [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA",
60 [PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID",
61 [PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND",
62 [PERF_RECORD_ID_INDEX] = "ID_INDEX",
63 [PERF_RECORD_AUXTRACE_INFO] = "AUXTRACE_INFO",
64 [PERF_RECORD_AUXTRACE] = "AUXTRACE",
65 [PERF_RECORD_AUXTRACE_ERROR] = "AUXTRACE_ERROR",
66 [PERF_RECORD_THREAD_MAP] = "THREAD_MAP",
67 [PERF_RECORD_CPU_MAP] = "CPU_MAP",
68 [PERF_RECORD_STAT_CONFIG] = "STAT_CONFIG",
69 [PERF_RECORD_STAT] = "STAT",
70 [PERF_RECORD_STAT_ROUND] = "STAT_ROUND",
71 [PERF_RECORD_EVENT_UPDATE] = "EVENT_UPDATE",
72 [PERF_RECORD_TIME_CONV] = "TIME_CONV",
73 [PERF_RECORD_HEADER_FEATURE] = "FEATURE",
74 [PERF_RECORD_COMPRESSED] = "COMPRESSED",
75};
76
77const char *perf_event__name(unsigned int id)
78{
79 if (id >= ARRAY_SIZE(perf_event__names))
80 return "INVALID";
81 if (!perf_event__names[id])
82 return "UNKNOWN";
83 return perf_event__names[id];
84}
85
86struct process_symbol_args {
87 const char *name;
88 u64 start;
89};
90
91static int find_symbol_cb(void *arg, const char *name, char type,
92 u64 start)
93{
94 struct process_symbol_args *args = arg;
95
96 /*
97 * Must be a function or at least an alias, as in PARISC64, where "_text" is
98 * an 'A' to the same address as "_stext".
99 */
100 if (!(kallsyms__is_function(type) ||
101 type == 'A') || strcmp(name, args->name))
102 return 0;
103
104 args->start = start;
105 return 1;
106}
107
108int kallsyms__get_function_start(const char *kallsyms_filename,
109 const char *symbol_name, u64 *addr)
110{
111 struct process_symbol_args args = { .name = symbol_name, };
112
113 if (kallsyms__parse(kallsyms_filename, &args, find_symbol_cb) <= 0)
114 return -1;
115
116 *addr = args.start;
117 return 0;
118}
119
120void perf_event__read_stat_config(struct perf_stat_config *config,
121 struct perf_record_stat_config *event)
122{
123 unsigned i;
124
125 for (i = 0; i < event->nr; i++) {
126
127 switch (event->data[i].tag) {
128#define CASE(__term, __val) \
129 case PERF_STAT_CONFIG_TERM__##__term: \
130 config->__val = event->data[i].val; \
131 break;
132
133 CASE(AGGR_MODE, aggr_mode)
134 CASE(SCALE, scale)
135 CASE(INTERVAL, interval)
136#undef CASE
137 default:
138 pr_warning("unknown stat config term %" PRI_lu64 "\n",
139 event->data[i].tag);
140 }
141 }
142}
143
144size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp)
145{
146 const char *s;
147
148 if (event->header.misc & PERF_RECORD_MISC_COMM_EXEC)
149 s = " exec";
150 else
151 s = "";
152
153 return fprintf(fp, "%s: %s:%d/%d\n", s, event->comm.comm, event->comm.pid, event->comm.tid);
154}
155
156size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp)
157{
158 size_t ret = 0;
159 struct perf_ns_link_info *ns_link_info;
160 u32 nr_namespaces, idx;
161
162 ns_link_info = event->namespaces.link_info;
163 nr_namespaces = event->namespaces.nr_namespaces;
164
165 ret += fprintf(fp, " %d/%d - nr_namespaces: %u\n\t\t[",
166 event->namespaces.pid,
167 event->namespaces.tid,
168 nr_namespaces);
169
170 for (idx = 0; idx < nr_namespaces; idx++) {
171 if (idx && (idx % 4 == 0))
172 ret += fprintf(fp, "\n\t\t ");
173
174 ret += fprintf(fp, "%u/%s: %" PRIu64 "/%#" PRIx64 "%s", idx,
175 perf_ns__name(idx), (u64)ns_link_info[idx].dev,
176 (u64)ns_link_info[idx].ino,
177 ((idx + 1) != nr_namespaces) ? ", " : "]\n");
178 }
179
180 return ret;
181}
182
183int perf_event__process_comm(struct perf_tool *tool __maybe_unused,
184 union perf_event *event,
185 struct perf_sample *sample,
186 struct machine *machine)
187{
188 return machine__process_comm_event(machine, event, sample);
189}
190
191int perf_event__process_namespaces(struct perf_tool *tool __maybe_unused,
192 union perf_event *event,
193 struct perf_sample *sample,
194 struct machine *machine)
195{
196 return machine__process_namespaces_event(machine, event, sample);
197}
198
199int perf_event__process_lost(struct perf_tool *tool __maybe_unused,
200 union perf_event *event,
201 struct perf_sample *sample,
202 struct machine *machine)
203{
204 return machine__process_lost_event(machine, event, sample);
205}
206
207int perf_event__process_aux(struct perf_tool *tool __maybe_unused,
208 union perf_event *event,
209 struct perf_sample *sample __maybe_unused,
210 struct machine *machine)
211{
212 return machine__process_aux_event(machine, event);
213}
214
215int perf_event__process_itrace_start(struct perf_tool *tool __maybe_unused,
216 union perf_event *event,
217 struct perf_sample *sample __maybe_unused,
218 struct machine *machine)
219{
220 return machine__process_itrace_start_event(machine, event);
221}
222
223int perf_event__process_lost_samples(struct perf_tool *tool __maybe_unused,
224 union perf_event *event,
225 struct perf_sample *sample,
226 struct machine *machine)
227{
228 return machine__process_lost_samples_event(machine, event, sample);
229}
230
231int perf_event__process_switch(struct perf_tool *tool __maybe_unused,
232 union perf_event *event,
233 struct perf_sample *sample __maybe_unused,
234 struct machine *machine)
235{
236 return machine__process_switch_event(machine, event);
237}
238
239int perf_event__process_ksymbol(struct perf_tool *tool __maybe_unused,
240 union perf_event *event,
241 struct perf_sample *sample __maybe_unused,
242 struct machine *machine)
243{
244 return machine__process_ksymbol(machine, event, sample);
245}
246
247int perf_event__process_bpf(struct perf_tool *tool __maybe_unused,
248 union perf_event *event,
249 struct perf_sample *sample,
250 struct machine *machine)
251{
252 return machine__process_bpf(machine, event, sample);
253}
254
255size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp)
256{
257 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64 "]: %c %s\n",
258 event->mmap.pid, event->mmap.tid, event->mmap.start,
259 event->mmap.len, event->mmap.pgoff,
260 (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x',
261 event->mmap.filename);
262}
263
264size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp)
265{
266 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64
267 " %02x:%02x %"PRI_lu64" %"PRI_lu64"]: %c%c%c%c %s\n",
268 event->mmap2.pid, event->mmap2.tid, event->mmap2.start,
269 event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj,
270 event->mmap2.min, event->mmap2.ino,
271 event->mmap2.ino_generation,
272 (event->mmap2.prot & PROT_READ) ? 'r' : '-',
273 (event->mmap2.prot & PROT_WRITE) ? 'w' : '-',
274 (event->mmap2.prot & PROT_EXEC) ? 'x' : '-',
275 (event->mmap2.flags & MAP_SHARED) ? 's' : 'p',
276 event->mmap2.filename);
277}
278
279size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp)
280{
281 struct perf_thread_map *threads = thread_map__new_event(&event->thread_map);
282 size_t ret;
283
284 ret = fprintf(fp, " nr: ");
285
286 if (threads)
287 ret += thread_map__fprintf(threads, fp);
288 else
289 ret += fprintf(fp, "failed to get threads from event\n");
290
291 perf_thread_map__put(threads);
292 return ret;
293}
294
295size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp)
296{
297 struct perf_cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data);
298 size_t ret;
299
300 ret = fprintf(fp, ": ");
301
302 if (cpus)
303 ret += cpu_map__fprintf(cpus, fp);
304 else
305 ret += fprintf(fp, "failed to get cpumap from event\n");
306
307 perf_cpu_map__put(cpus);
308 return ret;
309}
310
311int perf_event__process_mmap(struct perf_tool *tool __maybe_unused,
312 union perf_event *event,
313 struct perf_sample *sample,
314 struct machine *machine)
315{
316 return machine__process_mmap_event(machine, event, sample);
317}
318
319int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused,
320 union perf_event *event,
321 struct perf_sample *sample,
322 struct machine *machine)
323{
324 return machine__process_mmap2_event(machine, event, sample);
325}
326
327size_t perf_event__fprintf_task(union perf_event *event, FILE *fp)
328{
329 return fprintf(fp, "(%d:%d):(%d:%d)\n",
330 event->fork.pid, event->fork.tid,
331 event->fork.ppid, event->fork.ptid);
332}
333
334int perf_event__process_fork(struct perf_tool *tool __maybe_unused,
335 union perf_event *event,
336 struct perf_sample *sample,
337 struct machine *machine)
338{
339 return machine__process_fork_event(machine, event, sample);
340}
341
342int perf_event__process_exit(struct perf_tool *tool __maybe_unused,
343 union perf_event *event,
344 struct perf_sample *sample,
345 struct machine *machine)
346{
347 return machine__process_exit_event(machine, event, sample);
348}
349
350size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp)
351{
352 return fprintf(fp, " offset: %#"PRI_lx64" size: %#"PRI_lx64" flags: %#"PRI_lx64" [%s%s%s]\n",
353 event->aux.aux_offset, event->aux.aux_size,
354 event->aux.flags,
355 event->aux.flags & PERF_AUX_FLAG_TRUNCATED ? "T" : "",
356 event->aux.flags & PERF_AUX_FLAG_OVERWRITE ? "O" : "",
357 event->aux.flags & PERF_AUX_FLAG_PARTIAL ? "P" : "");
358}
359
360size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp)
361{
362 return fprintf(fp, " pid: %u tid: %u\n",
363 event->itrace_start.pid, event->itrace_start.tid);
364}
365
366size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp)
367{
368 bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT;
369 const char *in_out = !out ? "IN " :
370 !(event->header.misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT) ?
371 "OUT " : "OUT preempt";
372
373 if (event->header.type == PERF_RECORD_SWITCH)
374 return fprintf(fp, " %s\n", in_out);
375
376 return fprintf(fp, " %s %s pid/tid: %5u/%-5u\n",
377 in_out, out ? "next" : "prev",
378 event->context_switch.next_prev_pid,
379 event->context_switch.next_prev_tid);
380}
381
382static size_t perf_event__fprintf_lost(union perf_event *event, FILE *fp)
383{
384 return fprintf(fp, " lost %" PRI_lu64 "\n", event->lost.lost);
385}
386
387size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp)
388{
389 return fprintf(fp, " addr %" PRI_lx64 " len %u type %u flags 0x%x name %s\n",
390 event->ksymbol.addr, event->ksymbol.len,
391 event->ksymbol.ksym_type,
392 event->ksymbol.flags, event->ksymbol.name);
393}
394
395size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp)
396{
397 return fprintf(fp, " type %u, flags %u, id %u\n",
398 event->bpf.type, event->bpf.flags, event->bpf.id);
399}
400
401size_t perf_event__fprintf(union perf_event *event, FILE *fp)
402{
403 size_t ret = fprintf(fp, "PERF_RECORD_%s",
404 perf_event__name(event->header.type));
405
406 switch (event->header.type) {
407 case PERF_RECORD_COMM:
408 ret += perf_event__fprintf_comm(event, fp);
409 break;
410 case PERF_RECORD_FORK:
411 case PERF_RECORD_EXIT:
412 ret += perf_event__fprintf_task(event, fp);
413 break;
414 case PERF_RECORD_MMAP:
415 ret += perf_event__fprintf_mmap(event, fp);
416 break;
417 case PERF_RECORD_NAMESPACES:
418 ret += perf_event__fprintf_namespaces(event, fp);
419 break;
420 case PERF_RECORD_MMAP2:
421 ret += perf_event__fprintf_mmap2(event, fp);
422 break;
423 case PERF_RECORD_AUX:
424 ret += perf_event__fprintf_aux(event, fp);
425 break;
426 case PERF_RECORD_ITRACE_START:
427 ret += perf_event__fprintf_itrace_start(event, fp);
428 break;
429 case PERF_RECORD_SWITCH:
430 case PERF_RECORD_SWITCH_CPU_WIDE:
431 ret += perf_event__fprintf_switch(event, fp);
432 break;
433 case PERF_RECORD_LOST:
434 ret += perf_event__fprintf_lost(event, fp);
435 break;
436 case PERF_RECORD_KSYMBOL:
437 ret += perf_event__fprintf_ksymbol(event, fp);
438 break;
439 case PERF_RECORD_BPF_EVENT:
440 ret += perf_event__fprintf_bpf(event, fp);
441 break;
442 default:
443 ret += fprintf(fp, "\n");
444 }
445
446 return ret;
447}
448
449int perf_event__process(struct perf_tool *tool __maybe_unused,
450 union perf_event *event,
451 struct perf_sample *sample,
452 struct machine *machine)
453{
454 return machine__process_event(machine, event, sample);
455}
456
457struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
458 struct addr_location *al)
459{
460 struct map_groups *mg = thread->mg;
461 struct machine *machine = mg->machine;
462 bool load_map = false;
463
464 al->machine = machine;
465 al->thread = thread;
466 al->addr = addr;
467 al->cpumode = cpumode;
468 al->filtered = 0;
469
470 if (machine == NULL) {
471 al->map = NULL;
472 return NULL;
473 }
474
475 if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) {
476 al->level = 'k';
477 mg = &machine->kmaps;
478 load_map = true;
479 } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) {
480 al->level = '.';
481 } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) {
482 al->level = 'g';
483 mg = &machine->kmaps;
484 load_map = true;
485 } else if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) {
486 al->level = 'u';
487 } else {
488 al->level = 'H';
489 al->map = NULL;
490
491 if ((cpumode == PERF_RECORD_MISC_GUEST_USER ||
492 cpumode == PERF_RECORD_MISC_GUEST_KERNEL) &&
493 !perf_guest)
494 al->filtered |= (1 << HIST_FILTER__GUEST);
495 if ((cpumode == PERF_RECORD_MISC_USER ||
496 cpumode == PERF_RECORD_MISC_KERNEL) &&
497 !perf_host)
498 al->filtered |= (1 << HIST_FILTER__HOST);
499
500 return NULL;
501 }
502
503 al->map = map_groups__find(mg, al->addr);
504 if (al->map != NULL) {
505 /*
506 * Kernel maps might be changed when loading symbols so loading
507 * must be done prior to using kernel maps.
508 */
509 if (load_map)
510 map__load(al->map);
511 al->addr = al->map->map_ip(al->map, al->addr);
512 }
513
514 return al->map;
515}
516
517/*
518 * For branch stacks or branch samples, the sample cpumode might not be correct
519 * because it applies only to the sample 'ip' and not necessary to 'addr' or
520 * branch stack addresses. If possible, use a fallback to deal with those cases.
521 */
522struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr,
523 struct addr_location *al)
524{
525 struct map *map = thread__find_map(thread, cpumode, addr, al);
526 struct machine *machine = thread->mg->machine;
527 u8 addr_cpumode = machine__addr_cpumode(machine, cpumode, addr);
528
529 if (map || addr_cpumode == cpumode)
530 return map;
531
532 return thread__find_map(thread, addr_cpumode, addr, al);
533}
534
535struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
536 u64 addr, struct addr_location *al)
537{
538 al->sym = NULL;
539 if (thread__find_map(thread, cpumode, addr, al))
540 al->sym = map__find_symbol(al->map, al->addr);
541 return al->sym;
542}
543
544struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode,
545 u64 addr, struct addr_location *al)
546{
547 al->sym = NULL;
548 if (thread__find_map_fb(thread, cpumode, addr, al))
549 al->sym = map__find_symbol(al->map, al->addr);
550 return al->sym;
551}
552
553/*
554 * Callers need to drop the reference to al->thread, obtained in
555 * machine__findnew_thread()
556 */
557int machine__resolve(struct machine *machine, struct addr_location *al,
558 struct perf_sample *sample)
559{
560 struct thread *thread = machine__findnew_thread(machine, sample->pid,
561 sample->tid);
562
563 if (thread == NULL)
564 return -1;
565
566 dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid);
567 thread__find_map(thread, sample->cpumode, sample->ip, al);
568 dump_printf(" ...... dso: %s\n",
569 al->map ? al->map->dso->long_name :
570 al->level == 'H' ? "[hypervisor]" : "<not found>");
571
572 if (thread__is_filtered(thread))
573 al->filtered |= (1 << HIST_FILTER__THREAD);
574
575 al->sym = NULL;
576 al->cpu = sample->cpu;
577 al->socket = -1;
578 al->srcline = NULL;
579
580 if (al->cpu >= 0) {
581 struct perf_env *env = machine->env;
582
583 if (env && env->cpu)
584 al->socket = env->cpu[al->cpu].socket_id;
585 }
586
587 if (al->map) {
588 struct dso *dso = al->map->dso;
589
590 if (symbol_conf.dso_list &&
591 (!dso || !(strlist__has_entry(symbol_conf.dso_list,
592 dso->short_name) ||
593 (dso->short_name != dso->long_name &&
594 strlist__has_entry(symbol_conf.dso_list,
595 dso->long_name))))) {
596 al->filtered |= (1 << HIST_FILTER__DSO);
597 }
598
599 al->sym = map__find_symbol(al->map, al->addr);
600 }
601
602 if (symbol_conf.sym_list &&
603 (!al->sym || !strlist__has_entry(symbol_conf.sym_list,
604 al->sym->name))) {
605 al->filtered |= (1 << HIST_FILTER__SYMBOL);
606 }
607
608 return 0;
609}
610
611/*
612 * The preprocess_sample method will return with reference counts for the
613 * in it, when done using (and perhaps getting ref counts if needing to
614 * keep a pointer to one of those entries) it must be paired with
615 * addr_location__put(), so that the refcounts can be decremented.
616 */
617void addr_location__put(struct addr_location *al)
618{
619 thread__zput(al->thread);
620}
621
622bool is_bts_event(struct perf_event_attr *attr)
623{
624 return attr->type == PERF_TYPE_HARDWARE &&
625 (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) &&
626 attr->sample_period == 1;
627}
628
629bool sample_addr_correlates_sym(struct perf_event_attr *attr)
630{
631 if (attr->type == PERF_TYPE_SOFTWARE &&
632 (attr->config == PERF_COUNT_SW_PAGE_FAULTS ||
633 attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN ||
634 attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ))
635 return true;
636
637 if (is_bts_event(attr))
638 return true;
639
640 return false;
641}
642
643void thread__resolve(struct thread *thread, struct addr_location *al,
644 struct perf_sample *sample)
645{
646 thread__find_map_fb(thread, sample->cpumode, sample->addr, al);
647
648 al->cpu = sample->cpu;
649 al->sym = NULL;
650
651 if (al->map)
652 al->sym = map__find_symbol(al->map, al->addr);
653}
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
38static 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
80const 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
89struct process_symbol_args {
90 const char *name;
91 u64 start;
92};
93
94static 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
111int 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
123void 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
147size_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
159size_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
186size_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
192int 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
200int 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
208int 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
216int 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
224int 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
232int 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
240int 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
248int 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
256int 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
264int 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
272int 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
280size_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
289size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp)
290{
291 if (event->header.misc & PERF_RECORD_MISC_MMAP_BUILD_ID) {
292 char sbuild_id[SBUILD_ID_SIZE];
293 struct build_id bid;
294
295 build_id__init(&bid, event->mmap2.build_id,
296 event->mmap2.build_id_size);
297 build_id__sprintf(&bid, sbuild_id);
298
299 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64
300 " <%s>]: %c%c%c%c %s\n",
301 event->mmap2.pid, event->mmap2.tid, event->mmap2.start,
302 event->mmap2.len, event->mmap2.pgoff, sbuild_id,
303 (event->mmap2.prot & PROT_READ) ? 'r' : '-',
304 (event->mmap2.prot & PROT_WRITE) ? 'w' : '-',
305 (event->mmap2.prot & PROT_EXEC) ? 'x' : '-',
306 (event->mmap2.flags & MAP_SHARED) ? 's' : 'p',
307 event->mmap2.filename);
308 } else {
309 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64
310 " %02x:%02x %"PRI_lu64" %"PRI_lu64"]: %c%c%c%c %s\n",
311 event->mmap2.pid, event->mmap2.tid, event->mmap2.start,
312 event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj,
313 event->mmap2.min, event->mmap2.ino,
314 event->mmap2.ino_generation,
315 (event->mmap2.prot & PROT_READ) ? 'r' : '-',
316 (event->mmap2.prot & PROT_WRITE) ? 'w' : '-',
317 (event->mmap2.prot & PROT_EXEC) ? 'x' : '-',
318 (event->mmap2.flags & MAP_SHARED) ? 's' : 'p',
319 event->mmap2.filename);
320 }
321}
322
323size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp)
324{
325 struct perf_thread_map *threads = thread_map__new_event(&event->thread_map);
326 size_t ret;
327
328 ret = fprintf(fp, " nr: ");
329
330 if (threads)
331 ret += thread_map__fprintf(threads, fp);
332 else
333 ret += fprintf(fp, "failed to get threads from event\n");
334
335 perf_thread_map__put(threads);
336 return ret;
337}
338
339size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp)
340{
341 struct perf_cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data);
342 size_t ret;
343
344 ret = fprintf(fp, ": ");
345
346 if (cpus)
347 ret += cpu_map__fprintf(cpus, fp);
348 else
349 ret += fprintf(fp, "failed to get cpumap from event\n");
350
351 perf_cpu_map__put(cpus);
352 return ret;
353}
354
355int perf_event__process_mmap(struct perf_tool *tool __maybe_unused,
356 union perf_event *event,
357 struct perf_sample *sample,
358 struct machine *machine)
359{
360 return machine__process_mmap_event(machine, event, sample);
361}
362
363int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused,
364 union perf_event *event,
365 struct perf_sample *sample,
366 struct machine *machine)
367{
368 return machine__process_mmap2_event(machine, event, sample);
369}
370
371size_t perf_event__fprintf_task(union perf_event *event, FILE *fp)
372{
373 return fprintf(fp, "(%d:%d):(%d:%d)\n",
374 event->fork.pid, event->fork.tid,
375 event->fork.ppid, event->fork.ptid);
376}
377
378int perf_event__process_fork(struct perf_tool *tool __maybe_unused,
379 union perf_event *event,
380 struct perf_sample *sample,
381 struct machine *machine)
382{
383 return machine__process_fork_event(machine, event, sample);
384}
385
386int perf_event__process_exit(struct perf_tool *tool __maybe_unused,
387 union perf_event *event,
388 struct perf_sample *sample,
389 struct machine *machine)
390{
391 return machine__process_exit_event(machine, event, sample);
392}
393
394size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp)
395{
396 return fprintf(fp, " offset: %#"PRI_lx64" size: %#"PRI_lx64" flags: %#"PRI_lx64" [%s%s%s]\n",
397 event->aux.aux_offset, event->aux.aux_size,
398 event->aux.flags,
399 event->aux.flags & PERF_AUX_FLAG_TRUNCATED ? "T" : "",
400 event->aux.flags & PERF_AUX_FLAG_OVERWRITE ? "O" : "",
401 event->aux.flags & PERF_AUX_FLAG_PARTIAL ? "P" : "");
402}
403
404size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp)
405{
406 return fprintf(fp, " pid: %u tid: %u\n",
407 event->itrace_start.pid, event->itrace_start.tid);
408}
409
410size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp)
411{
412 bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT;
413 const char *in_out = !out ? "IN " :
414 !(event->header.misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT) ?
415 "OUT " : "OUT preempt";
416
417 if (event->header.type == PERF_RECORD_SWITCH)
418 return fprintf(fp, " %s\n", in_out);
419
420 return fprintf(fp, " %s %s pid/tid: %5d/%-5d\n",
421 in_out, out ? "next" : "prev",
422 event->context_switch.next_prev_pid,
423 event->context_switch.next_prev_tid);
424}
425
426static size_t perf_event__fprintf_lost(union perf_event *event, FILE *fp)
427{
428 return fprintf(fp, " lost %" PRI_lu64 "\n", event->lost.lost);
429}
430
431size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp)
432{
433 return fprintf(fp, " addr %" PRI_lx64 " len %u type %u flags 0x%x name %s\n",
434 event->ksymbol.addr, event->ksymbol.len,
435 event->ksymbol.ksym_type,
436 event->ksymbol.flags, event->ksymbol.name);
437}
438
439size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp)
440{
441 return fprintf(fp, " type %u, flags %u, id %u\n",
442 event->bpf.type, event->bpf.flags, event->bpf.id);
443}
444
445static int text_poke_printer(enum binary_printer_ops op, unsigned int val,
446 void *extra, FILE *fp)
447{
448 bool old = *(bool *)extra;
449
450 switch ((int)op) {
451 case BINARY_PRINT_LINE_BEGIN:
452 return fprintf(fp, " %s bytes:", old ? "Old" : "New");
453 case BINARY_PRINT_NUM_DATA:
454 return fprintf(fp, " %02x", val);
455 case BINARY_PRINT_LINE_END:
456 return fprintf(fp, "\n");
457 default:
458 return 0;
459 }
460}
461
462size_t perf_event__fprintf_text_poke(union perf_event *event, struct machine *machine, FILE *fp)
463{
464 struct perf_record_text_poke_event *tp = &event->text_poke;
465 size_t ret;
466 bool old;
467
468 ret = fprintf(fp, " %" PRI_lx64 " ", tp->addr);
469 if (machine) {
470 struct addr_location al;
471
472 al.map = maps__find(&machine->kmaps, tp->addr);
473 if (al.map && map__load(al.map) >= 0) {
474 al.addr = al.map->map_ip(al.map, tp->addr);
475 al.sym = map__find_symbol(al.map, al.addr);
476 if (al.sym)
477 ret += symbol__fprintf_symname_offs(al.sym, &al, fp);
478 }
479 }
480 ret += fprintf(fp, " old len %u new len %u\n", tp->old_len, tp->new_len);
481 old = true;
482 ret += binary__fprintf(tp->bytes, tp->old_len, 16, text_poke_printer,
483 &old, fp);
484 old = false;
485 ret += binary__fprintf(tp->bytes + tp->old_len, tp->new_len, 16,
486 text_poke_printer, &old, fp);
487 return ret;
488}
489
490size_t perf_event__fprintf(union perf_event *event, struct machine *machine, FILE *fp)
491{
492 size_t ret = fprintf(fp, "PERF_RECORD_%s",
493 perf_event__name(event->header.type));
494
495 switch (event->header.type) {
496 case PERF_RECORD_COMM:
497 ret += perf_event__fprintf_comm(event, fp);
498 break;
499 case PERF_RECORD_FORK:
500 case PERF_RECORD_EXIT:
501 ret += perf_event__fprintf_task(event, fp);
502 break;
503 case PERF_RECORD_MMAP:
504 ret += perf_event__fprintf_mmap(event, fp);
505 break;
506 case PERF_RECORD_NAMESPACES:
507 ret += perf_event__fprintf_namespaces(event, fp);
508 break;
509 case PERF_RECORD_CGROUP:
510 ret += perf_event__fprintf_cgroup(event, fp);
511 break;
512 case PERF_RECORD_MMAP2:
513 ret += perf_event__fprintf_mmap2(event, fp);
514 break;
515 case PERF_RECORD_AUX:
516 ret += perf_event__fprintf_aux(event, fp);
517 break;
518 case PERF_RECORD_ITRACE_START:
519 ret += perf_event__fprintf_itrace_start(event, fp);
520 break;
521 case PERF_RECORD_SWITCH:
522 case PERF_RECORD_SWITCH_CPU_WIDE:
523 ret += perf_event__fprintf_switch(event, fp);
524 break;
525 case PERF_RECORD_LOST:
526 ret += perf_event__fprintf_lost(event, fp);
527 break;
528 case PERF_RECORD_KSYMBOL:
529 ret += perf_event__fprintf_ksymbol(event, fp);
530 break;
531 case PERF_RECORD_BPF_EVENT:
532 ret += perf_event__fprintf_bpf(event, fp);
533 break;
534 case PERF_RECORD_TEXT_POKE:
535 ret += perf_event__fprintf_text_poke(event, machine, fp);
536 break;
537 default:
538 ret += fprintf(fp, "\n");
539 }
540
541 return ret;
542}
543
544int perf_event__process(struct perf_tool *tool __maybe_unused,
545 union perf_event *event,
546 struct perf_sample *sample,
547 struct machine *machine)
548{
549 return machine__process_event(machine, event, sample);
550}
551
552struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
553 struct addr_location *al)
554{
555 struct maps *maps = thread->maps;
556 struct machine *machine = maps->machine;
557 bool load_map = false;
558
559 al->maps = maps;
560 al->thread = thread;
561 al->addr = addr;
562 al->cpumode = cpumode;
563 al->filtered = 0;
564
565 if (machine == NULL) {
566 al->map = NULL;
567 return NULL;
568 }
569
570 if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) {
571 al->level = 'k';
572 al->maps = maps = &machine->kmaps;
573 load_map = true;
574 } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) {
575 al->level = '.';
576 } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) {
577 al->level = 'g';
578 al->maps = maps = &machine->kmaps;
579 load_map = true;
580 } else if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) {
581 al->level = 'u';
582 } else {
583 al->level = 'H';
584 al->map = NULL;
585
586 if ((cpumode == PERF_RECORD_MISC_GUEST_USER ||
587 cpumode == PERF_RECORD_MISC_GUEST_KERNEL) &&
588 !perf_guest)
589 al->filtered |= (1 << HIST_FILTER__GUEST);
590 if ((cpumode == PERF_RECORD_MISC_USER ||
591 cpumode == PERF_RECORD_MISC_KERNEL) &&
592 !perf_host)
593 al->filtered |= (1 << HIST_FILTER__HOST);
594
595 return NULL;
596 }
597
598 al->map = maps__find(maps, al->addr);
599 if (al->map != NULL) {
600 /*
601 * Kernel maps might be changed when loading symbols so loading
602 * must be done prior to using kernel maps.
603 */
604 if (load_map)
605 map__load(al->map);
606 al->addr = al->map->map_ip(al->map, al->addr);
607 }
608
609 return al->map;
610}
611
612/*
613 * For branch stacks or branch samples, the sample cpumode might not be correct
614 * because it applies only to the sample 'ip' and not necessary to 'addr' or
615 * branch stack addresses. If possible, use a fallback to deal with those cases.
616 */
617struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr,
618 struct addr_location *al)
619{
620 struct map *map = thread__find_map(thread, cpumode, addr, al);
621 struct machine *machine = thread->maps->machine;
622 u8 addr_cpumode = machine__addr_cpumode(machine, cpumode, addr);
623
624 if (map || addr_cpumode == cpumode)
625 return map;
626
627 return thread__find_map(thread, addr_cpumode, addr, al);
628}
629
630struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
631 u64 addr, struct addr_location *al)
632{
633 al->sym = NULL;
634 if (thread__find_map(thread, cpumode, addr, al))
635 al->sym = map__find_symbol(al->map, al->addr);
636 return al->sym;
637}
638
639struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode,
640 u64 addr, struct addr_location *al)
641{
642 al->sym = NULL;
643 if (thread__find_map_fb(thread, cpumode, addr, al))
644 al->sym = map__find_symbol(al->map, al->addr);
645 return al->sym;
646}
647
648static bool check_address_range(struct intlist *addr_list, int addr_range,
649 unsigned long addr)
650{
651 struct int_node *pos;
652
653 intlist__for_each_entry(pos, addr_list) {
654 if (addr >= pos->i && addr < pos->i + addr_range)
655 return true;
656 }
657
658 return false;
659}
660
661/*
662 * Callers need to drop the reference to al->thread, obtained in
663 * machine__findnew_thread()
664 */
665int machine__resolve(struct machine *machine, struct addr_location *al,
666 struct perf_sample *sample)
667{
668 struct thread *thread = machine__findnew_thread(machine, sample->pid,
669 sample->tid);
670
671 if (thread == NULL)
672 return -1;
673
674 dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid);
675 thread__find_map(thread, sample->cpumode, sample->ip, al);
676 dump_printf(" ...... dso: %s\n",
677 al->map ? al->map->dso->long_name :
678 al->level == 'H' ? "[hypervisor]" : "<not found>");
679
680 if (thread__is_filtered(thread))
681 al->filtered |= (1 << HIST_FILTER__THREAD);
682
683 al->sym = NULL;
684 al->cpu = sample->cpu;
685 al->socket = -1;
686 al->srcline = NULL;
687
688 if (al->cpu >= 0) {
689 struct perf_env *env = machine->env;
690
691 if (env && env->cpu)
692 al->socket = env->cpu[al->cpu].socket_id;
693 }
694
695 if (al->map) {
696 struct dso *dso = al->map->dso;
697
698 if (symbol_conf.dso_list &&
699 (!dso || !(strlist__has_entry(symbol_conf.dso_list,
700 dso->short_name) ||
701 (dso->short_name != dso->long_name &&
702 strlist__has_entry(symbol_conf.dso_list,
703 dso->long_name))))) {
704 al->filtered |= (1 << HIST_FILTER__DSO);
705 }
706
707 al->sym = map__find_symbol(al->map, al->addr);
708 } else if (symbol_conf.dso_list) {
709 al->filtered |= (1 << HIST_FILTER__DSO);
710 }
711
712 if (symbol_conf.sym_list) {
713 int ret = 0;
714 char al_addr_str[32];
715 size_t sz = sizeof(al_addr_str);
716
717 if (al->sym) {
718 ret = strlist__has_entry(symbol_conf.sym_list,
719 al->sym->name);
720 }
721 if (!ret && al->sym) {
722 snprintf(al_addr_str, sz, "0x%"PRIx64,
723 al->map->unmap_ip(al->map, al->sym->start));
724 ret = strlist__has_entry(symbol_conf.sym_list,
725 al_addr_str);
726 }
727 if (!ret && symbol_conf.addr_list && al->map) {
728 unsigned long addr = al->map->unmap_ip(al->map, al->addr);
729
730 ret = intlist__has_entry(symbol_conf.addr_list, addr);
731 if (!ret && symbol_conf.addr_range) {
732 ret = check_address_range(symbol_conf.addr_list,
733 symbol_conf.addr_range,
734 addr);
735 }
736 }
737
738 if (!ret)
739 al->filtered |= (1 << HIST_FILTER__SYMBOL);
740 }
741
742 return 0;
743}
744
745/*
746 * The preprocess_sample method will return with reference counts for the
747 * in it, when done using (and perhaps getting ref counts if needing to
748 * keep a pointer to one of those entries) it must be paired with
749 * addr_location__put(), so that the refcounts can be decremented.
750 */
751void addr_location__put(struct addr_location *al)
752{
753 thread__zput(al->thread);
754}
755
756bool is_bts_event(struct perf_event_attr *attr)
757{
758 return attr->type == PERF_TYPE_HARDWARE &&
759 (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) &&
760 attr->sample_period == 1;
761}
762
763bool sample_addr_correlates_sym(struct perf_event_attr *attr)
764{
765 if (attr->type == PERF_TYPE_SOFTWARE &&
766 (attr->config == PERF_COUNT_SW_PAGE_FAULTS ||
767 attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN ||
768 attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ))
769 return true;
770
771 if (is_bts_event(attr))
772 return true;
773
774 return false;
775}
776
777void thread__resolve(struct thread *thread, struct addr_location *al,
778 struct perf_sample *sample)
779{
780 thread__find_map_fb(thread, sample->cpumode, sample->addr, al);
781
782 al->cpu = sample->cpu;
783 al->sym = NULL;
784
785 if (al->map)
786 al->sym = map__find_symbol(al->map, al->addr);
787}