projects/linux·blob master · refs

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1#include <errno.h>
2#include <fcntl.h>
3#include <inttypes.h>
4#include <linux/compiler.h>
5#include <linux/kernel.h>
6#include <linux/types.h>
7#include <perf/cpumap.h>
8#include <perf/event.h>
9#include <stdio.h>
10#include <sys/types.h>
11#include <sys/stat.h>
12#include <unistd.h>
13#include <uapi/linux/mman.h> /* To get things like MAP_HUGETLB even on older libc headers */
14#include <linux/perf_event.h>
15#include "cpumap.h"
16#include "dso.h"
17#include "env.h"
18#include "event.h"
19#include "debug.h"
20#include "hist.h"
21#include "machine.h"
22#include "sort.h"
23#include "string2.h"
24#include "strlist.h"
25#include "thread.h"
26#include "thread_map.h"
27#include "time-utils.h"
28#include <linux/ctype.h>
29#include "map.h"
30#include "util/namespaces.h"
31#include "symbol.h"
32#include "symbol/kallsyms.h"
33#include "asm/bug.h"
34#include "stat.h"
35#include "session.h"
36#include "bpf-event.h"
37#include "print_binary.h"
38#include "tool.h"
39#include "util.h"
40
41static const char *perf_event__names[] = {
42 [0] = "TOTAL",
43 [PERF_RECORD_MMAP] = "MMAP",
44 [PERF_RECORD_MMAP2] = "MMAP2",
45 [PERF_RECORD_LOST] = "LOST",
46 [PERF_RECORD_COMM] = "COMM",
47 [PERF_RECORD_EXIT] = "EXIT",
48 [PERF_RECORD_THROTTLE] = "THROTTLE",
49 [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE",
50 [PERF_RECORD_FORK] = "FORK",
51 [PERF_RECORD_READ] = "READ",
52 [PERF_RECORD_SAMPLE] = "SAMPLE",
53 [PERF_RECORD_AUX] = "AUX",
54 [PERF_RECORD_ITRACE_START] = "ITRACE_START",
55 [PERF_RECORD_LOST_SAMPLES] = "LOST_SAMPLES",
56 [PERF_RECORD_SWITCH] = "SWITCH",
57 [PERF_RECORD_SWITCH_CPU_WIDE] = "SWITCH_CPU_WIDE",
58 [PERF_RECORD_NAMESPACES] = "NAMESPACES",
59 [PERF_RECORD_KSYMBOL] = "KSYMBOL",
60 [PERF_RECORD_BPF_EVENT] = "BPF_EVENT",
61 [PERF_RECORD_CGROUP] = "CGROUP",
62 [PERF_RECORD_TEXT_POKE] = "TEXT_POKE",
63 [PERF_RECORD_AUX_OUTPUT_HW_ID] = "AUX_OUTPUT_HW_ID",
64 [PERF_RECORD_CALLCHAIN_DEFERRED] = "CALLCHAIN_DEFERRED",
65 [PERF_RECORD_HEADER_ATTR] = "ATTR",
66 [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE",
67 [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA",
68 [PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID",
69 [PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND",
70 [PERF_RECORD_ID_INDEX] = "ID_INDEX",
71 [PERF_RECORD_AUXTRACE_INFO] = "AUXTRACE_INFO",
72 [PERF_RECORD_AUXTRACE] = "AUXTRACE",
73 [PERF_RECORD_AUXTRACE_ERROR] = "AUXTRACE_ERROR",
74 [PERF_RECORD_THREAD_MAP] = "THREAD_MAP",
75 [PERF_RECORD_CPU_MAP] = "CPU_MAP",
76 [PERF_RECORD_STAT_CONFIG] = "STAT_CONFIG",
77 [PERF_RECORD_STAT] = "STAT",
78 [PERF_RECORD_STAT_ROUND] = "STAT_ROUND",
79 [PERF_RECORD_EVENT_UPDATE] = "EVENT_UPDATE",
80 [PERF_RECORD_TIME_CONV] = "TIME_CONV",
81 [PERF_RECORD_HEADER_FEATURE] = "FEATURE",
82 [PERF_RECORD_COMPRESSED] = "COMPRESSED",
83 [PERF_RECORD_FINISHED_INIT] = "FINISHED_INIT",
84 [PERF_RECORD_COMPRESSED2] = "COMPRESSED2",
85 [PERF_RECORD_BPF_METADATA] = "BPF_METADATA",
86 [PERF_RECORD_SCHEDSTAT_CPU] = "SCHEDSTAT_CPU",
87 [PERF_RECORD_SCHEDSTAT_DOMAIN] = "SCHEDSTAT_DOMAIN",
88};
89
90const char *perf_event__name(unsigned int id)
91{
92 if (id >= ARRAY_SIZE(perf_event__names))
93 return "INVALID";
94 if (!perf_event__names[id])
95 return "UNKNOWN";
96 return perf_event__names[id];
97}
98
99struct process_symbol_args {
100 const char *name;
101 u64 start;
102};
103
104static int find_func_symbol_cb(void *arg, const char *name, char type,
105 u64 start)
106{
107 struct process_symbol_args *args = arg;
108
109 /*
110 * Must be a function or at least an alias, as in PARISC64, where "_text" is
111 * an 'A' to the same address as "_stext".
112 */
113 if (!(kallsyms__is_function(type) ||
114 type == 'A') || strcmp(name, args->name))
115 return 0;
116
117 args->start = start;
118 return 1;
119}
120
121static int find_any_symbol_cb(void *arg, const char *name,
122 char type __maybe_unused, u64 start)
123{
124 struct process_symbol_args *args = arg;
125
126 if (strcmp(name, args->name))
127 return 0;
128
129 args->start = start;
130 return 1;
131}
132
133int kallsyms__get_function_start(const char *kallsyms_filename,
134 const char *symbol_name, u64 *addr)
135{
136 struct process_symbol_args args = { .name = symbol_name, };
137
138 if (kallsyms__parse(kallsyms_filename, &args, find_func_symbol_cb) <= 0)
139 return -1;
140
141 *addr = args.start;
142 return 0;
143}
144
145int kallsyms__get_symbol_start(const char *kallsyms_filename,
146 const char *symbol_name, u64 *addr)
147{
148 struct process_symbol_args args = { .name = symbol_name, };
149
150 if (kallsyms__parse(kallsyms_filename, &args, find_any_symbol_cb) <= 0)
151 return -1;
152
153 *addr = args.start;
154 return 0;
155}
156
157void perf_event__read_stat_config(struct perf_stat_config *config,
158 struct perf_record_stat_config *event)
159{
160 unsigned i;
161
162 for (i = 0; i < event->nr; i++) {
163
164 switch (event->data[i].tag) {
165#define CASE(__term, __val) \
166 case PERF_STAT_CONFIG_TERM__##__term: \
167 config->__val = event->data[i].val; \
168 break;
169
170 CASE(AGGR_MODE, aggr_mode)
171 CASE(SCALE, scale)
172 CASE(INTERVAL, interval)
173 CASE(AGGR_LEVEL, aggr_level)
174#undef CASE
175 default:
176 pr_warning("unknown stat config term %" PRI_lu64 "\n",
177 event->data[i].tag);
178 }
179 }
180}
181
182size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp)
183{
184 const char *s;
185
186 if (event->header.misc & PERF_RECORD_MISC_COMM_EXEC)
187 s = " exec";
188 else
189 s = "";
190
191 return fprintf(fp, "%s: %s:%d/%d\n", s, event->comm.comm, event->comm.pid, event->comm.tid);
192}
193
194size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp)
195{
196 size_t ret = 0;
197 struct perf_ns_link_info *ns_link_info;
198 u32 nr_namespaces, idx;
199
200 ns_link_info = event->namespaces.link_info;
201 nr_namespaces = event->namespaces.nr_namespaces;
202
203 ret += fprintf(fp, " %d/%d - nr_namespaces: %u\n\t\t[",
204 event->namespaces.pid,
205 event->namespaces.tid,
206 nr_namespaces);
207
208 for (idx = 0; idx < nr_namespaces; idx++) {
209 if (idx && (idx % 4 == 0))
210 ret += fprintf(fp, "\n\t\t ");
211
212 ret += fprintf(fp, "%u/%s: %" PRIu64 "/%#" PRIx64 "%s", idx,
213 perf_ns__name(idx), (u64)ns_link_info[idx].dev,
214 (u64)ns_link_info[idx].ino,
215 ((idx + 1) != nr_namespaces) ? ", " : "]\n");
216 }
217
218 return ret;
219}
220
221size_t perf_event__fprintf_cgroup(union perf_event *event, FILE *fp)
222{
223 return fprintf(fp, " cgroup: %" PRI_lu64 " %s\n",
224 event->cgroup.id, event->cgroup.path);
225}
226
227int perf_event__process_comm(const struct perf_tool *tool __maybe_unused,
228 union perf_event *event,
229 struct perf_sample *sample,
230 struct machine *machine)
231{
232 return machine__process_comm_event(machine, event, sample);
233}
234
235int perf_event__process_namespaces(const struct perf_tool *tool __maybe_unused,
236 union perf_event *event,
237 struct perf_sample *sample,
238 struct machine *machine)
239{
240 return machine__process_namespaces_event(machine, event, sample);
241}
242
243int perf_event__process_cgroup(const struct perf_tool *tool __maybe_unused,
244 union perf_event *event,
245 struct perf_sample *sample,
246 struct machine *machine)
247{
248 return machine__process_cgroup_event(machine, event, sample);
249}
250
251int perf_event__process_lost(const struct perf_tool *tool __maybe_unused,
252 union perf_event *event,
253 struct perf_sample *sample,
254 struct machine *machine)
255{
256 return machine__process_lost_event(machine, event, sample);
257}
258
259int perf_event__process_aux(const struct perf_tool *tool __maybe_unused,
260 union perf_event *event,
261 struct perf_sample *sample __maybe_unused,
262 struct machine *machine)
263{
264 return machine__process_aux_event(machine, event);
265}
266
267int perf_event__process_itrace_start(const struct perf_tool *tool __maybe_unused,
268 union perf_event *event,
269 struct perf_sample *sample __maybe_unused,
270 struct machine *machine)
271{
272 return machine__process_itrace_start_event(machine, event);
273}
274
275int perf_event__process_aux_output_hw_id(const struct perf_tool *tool __maybe_unused,
276 union perf_event *event,
277 struct perf_sample *sample __maybe_unused,
278 struct machine *machine)
279{
280 return machine__process_aux_output_hw_id_event(machine, event);
281}
282
283int perf_event__process_lost_samples(const struct perf_tool *tool __maybe_unused,
284 union perf_event *event,
285 struct perf_sample *sample,
286 struct machine *machine)
287{
288 return machine__process_lost_samples_event(machine, event, sample);
289}
290
291int perf_event__process_switch(const struct perf_tool *tool __maybe_unused,
292 union perf_event *event,
293 struct perf_sample *sample __maybe_unused,
294 struct machine *machine)
295{
296 return machine__process_switch_event(machine, event);
297}
298
299int perf_event__process_ksymbol(const struct perf_tool *tool __maybe_unused,
300 union perf_event *event,
301 struct perf_sample *sample __maybe_unused,
302 struct machine *machine)
303{
304 return machine__process_ksymbol(machine, event, sample);
305}
306
307int perf_event__process_bpf(const struct perf_tool *tool __maybe_unused,
308 union perf_event *event,
309 struct perf_sample *sample,
310 struct machine *machine)
311{
312 return machine__process_bpf(machine, event, sample);
313}
314
315int perf_event__process_text_poke(const struct perf_tool *tool __maybe_unused,
316 union perf_event *event,
317 struct perf_sample *sample,
318 struct machine *machine)
319{
320 return machine__process_text_poke(machine, event, sample);
321}
322
323size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp)
324{
325 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64 "]: %c %s\n",
326 event->mmap.pid, event->mmap.tid, event->mmap.start,
327 event->mmap.len, event->mmap.pgoff,
328 (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x',
329 event->mmap.filename);
330}
331
332size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp)
333{
334 if (event->header.misc & PERF_RECORD_MISC_MMAP_BUILD_ID) {
335 char sbuild_id[SBUILD_ID_SIZE];
336 struct build_id bid;
337
338 build_id__init(&bid, event->mmap2.build_id,
339 event->mmap2.build_id_size);
340 build_id__snprintf(&bid, sbuild_id, sizeof(sbuild_id));
341
342 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64
343 " <%s>]: %c%c%c%c %s\n",
344 event->mmap2.pid, event->mmap2.tid, event->mmap2.start,
345 event->mmap2.len, event->mmap2.pgoff, sbuild_id,
346 (event->mmap2.prot & PROT_READ) ? 'r' : '-',
347 (event->mmap2.prot & PROT_WRITE) ? 'w' : '-',
348 (event->mmap2.prot & PROT_EXEC) ? 'x' : '-',
349 (event->mmap2.flags & MAP_SHARED) ? 's' : 'p',
350 event->mmap2.filename);
351 } else {
352 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64
353 " %02x:%02x %"PRI_lu64" %"PRI_lu64"]: %c%c%c%c %s\n",
354 event->mmap2.pid, event->mmap2.tid, event->mmap2.start,
355 event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj,
356 event->mmap2.min, event->mmap2.ino,
357 event->mmap2.ino_generation,
358 (event->mmap2.prot & PROT_READ) ? 'r' : '-',
359 (event->mmap2.prot & PROT_WRITE) ? 'w' : '-',
360 (event->mmap2.prot & PROT_EXEC) ? 'x' : '-',
361 (event->mmap2.flags & MAP_SHARED) ? 's' : 'p',
362 event->mmap2.filename);
363 }
364}
365
366size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp)
367{
368 struct perf_thread_map *threads = thread_map__new_event(&event->thread_map);
369 size_t ret;
370
371 ret = fprintf(fp, " nr: ");
372
373 if (threads)
374 ret += thread_map__fprintf(threads, fp);
375 else
376 ret += fprintf(fp, "failed to get threads from event\n");
377
378 perf_thread_map__put(threads);
379 return ret;
380}
381
382size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp)
383{
384 struct perf_cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data);
385 size_t ret;
386
387 ret = fprintf(fp, ": ");
388
389 if (cpus)
390 ret += cpu_map__fprintf(cpus, fp);
391 else
392 ret += fprintf(fp, "failed to get cpumap from event\n");
393
394 perf_cpu_map__put(cpus);
395 return ret;
396}
397
398int perf_event__process_mmap(const struct perf_tool *tool __maybe_unused,
399 union perf_event *event,
400 struct perf_sample *sample,
401 struct machine *machine)
402{
403 return machine__process_mmap_event(machine, event, sample);
404}
405
406int perf_event__process_mmap2(const struct perf_tool *tool __maybe_unused,
407 union perf_event *event,
408 struct perf_sample *sample,
409 struct machine *machine)
410{
411 return machine__process_mmap2_event(machine, event, sample);
412}
413
414size_t perf_event__fprintf_task(union perf_event *event, FILE *fp)
415{
416 return fprintf(fp, "(%d:%d):(%d:%d)\n",
417 event->fork.pid, event->fork.tid,
418 event->fork.ppid, event->fork.ptid);
419}
420
421int perf_event__process_fork(const struct perf_tool *tool __maybe_unused,
422 union perf_event *event,
423 struct perf_sample *sample,
424 struct machine *machine)
425{
426 return machine__process_fork_event(machine, event, sample);
427}
428
429int perf_event__process_exit(const struct perf_tool *tool __maybe_unused,
430 union perf_event *event,
431 struct perf_sample *sample,
432 struct machine *machine)
433{
434 return machine__process_exit_event(machine, event, sample);
435}
436
437int perf_event__exit_del_thread(const struct perf_tool *tool __maybe_unused,
438 union perf_event *event,
439 struct perf_sample *sample __maybe_unused,
440 struct machine *machine)
441{
442 struct thread *thread = machine__findnew_thread(machine,
443 event->fork.pid,
444 event->fork.tid);
445
446 dump_printf("(%d:%d):(%d:%d)\n", event->fork.pid, event->fork.tid,
447 event->fork.ppid, event->fork.ptid);
448
449 if (thread) {
450 machine__remove_thread(machine, thread);
451 thread__put(thread);
452 }
453
454 return 0;
455}
456
457size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp)
458{
459 return fprintf(fp, " offset: %#"PRI_lx64" size: %#"PRI_lx64" flags: %#"PRI_lx64" [%s%s%s%s]\n",
460 event->aux.aux_offset, event->aux.aux_size,
461 event->aux.flags,
462 event->aux.flags & PERF_AUX_FLAG_TRUNCATED ? "T" : "",
463 event->aux.flags & PERF_AUX_FLAG_OVERWRITE ? "O" : "",
464 event->aux.flags & PERF_AUX_FLAG_PARTIAL ? "P" : "",
465 event->aux.flags & PERF_AUX_FLAG_COLLISION ? "C" : "");
466}
467
468size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp)
469{
470 return fprintf(fp, " pid: %u tid: %u\n",
471 event->itrace_start.pid, event->itrace_start.tid);
472}
473
474size_t perf_event__fprintf_aux_output_hw_id(union perf_event *event, FILE *fp)
475{
476 return fprintf(fp, " hw_id: %#"PRI_lx64"\n",
477 event->aux_output_hw_id.hw_id);
478}
479
480size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp)
481{
482 bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT;
483 const char *in_out = !out ? "IN " :
484 !(event->header.misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT) ?
485 "OUT " : "OUT preempt";
486
487 if (event->header.type == PERF_RECORD_SWITCH)
488 return fprintf(fp, " %s\n", in_out);
489
490 return fprintf(fp, " %s %s pid/tid: %5d/%-5d\n",
491 in_out, out ? "next" : "prev",
492 event->context_switch.next_prev_pid,
493 event->context_switch.next_prev_tid);
494}
495
496static size_t perf_event__fprintf_lost(union perf_event *event, FILE *fp)
497{
498 return fprintf(fp, " lost %" PRI_lu64 "\n", event->lost.lost);
499}
500
501size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp)
502{
503 return fprintf(fp, " addr %" PRI_lx64 " len %u type %u flags 0x%x name %s\n",
504 event->ksymbol.addr, event->ksymbol.len,
505 event->ksymbol.ksym_type,
506 event->ksymbol.flags, event->ksymbol.name);
507}
508
509size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp)
510{
511 return fprintf(fp, " type %u, flags %u, id %u\n",
512 event->bpf.type, event->bpf.flags, event->bpf.id);
513}
514
515size_t perf_event__fprintf_bpf_metadata(union perf_event *event, FILE *fp)
516{
517 struct perf_record_bpf_metadata *metadata = &event->bpf_metadata;
518 size_t ret;
519
520 ret = fprintf(fp, " prog %s\n", metadata->prog_name);
521 for (__u32 i = 0; i < metadata->nr_entries; i++) {
522 ret += fprintf(fp, " entry %d: %20s = %s\n", i,
523 metadata->entries[i].key,
524 metadata->entries[i].value);
525 }
526 return ret;
527}
528
529static int text_poke_printer(enum binary_printer_ops op, unsigned int val,
530 void *extra, FILE *fp)
531{
532 bool old = *(bool *)extra;
533
534 switch ((int)op) {
535 case BINARY_PRINT_LINE_BEGIN:
536 return fprintf(fp, " %s bytes:", old ? "Old" : "New");
537 case BINARY_PRINT_NUM_DATA:
538 return fprintf(fp, " %02x", val);
539 case BINARY_PRINT_LINE_END:
540 return fprintf(fp, "\n");
541 default:
542 return 0;
543 }
544}
545
546size_t perf_event__fprintf_text_poke(union perf_event *event, struct machine *machine, FILE *fp)
547{
548 struct perf_record_text_poke_event *tp = &event->text_poke;
549 size_t ret;
550 bool old;
551
552 ret = fprintf(fp, " %" PRI_lx64 " ", tp->addr);
553 if (machine) {
554 struct addr_location al;
555
556 addr_location__init(&al);
557 al.map = maps__find(machine__kernel_maps(machine), tp->addr);
558 if (al.map && map__load(al.map) >= 0) {
559 al.addr = map__map_ip(al.map, tp->addr);
560 al.sym = map__find_symbol(al.map, al.addr);
561 if (al.sym)
562 ret += symbol__fprintf_symname_offs(al.sym, &al, fp);
563 }
564 addr_location__exit(&al);
565 }
566 ret += fprintf(fp, " old len %u new len %u\n", tp->old_len, tp->new_len);
567 old = true;
568 ret += binary__fprintf(tp->bytes, tp->old_len, 16, text_poke_printer,
569 &old, fp);
570 old = false;
571 ret += binary__fprintf(tp->bytes + tp->old_len, tp->new_len, 16,
572 text_poke_printer, &old, fp);
573 return ret;
574}
575
576size_t perf_event__fprintf_schedstat_cpu(union perf_event *event, FILE *fp)
577{
578 struct perf_record_schedstat_cpu *cs = &event->schedstat_cpu;
579 size_t size = fprintf(fp, "\ncpu%u ", cs->cpu);
580 __u16 version = cs->version;
581
582#define CPU_FIELD(_type, _name, _desc, _format, _is_pct, _pct_of, _ver) \
583 size += fprintf(fp, "%" PRIu64 " ", (uint64_t)cs->_ver._name)
584
585 if (version == 15) {
586#include <perf/schedstat-v15.h>
587 return size;
588 } else if (version == 16) {
589#include <perf/schedstat-v16.h>
590 return size;
591 } else if (version == 17) {
592#include <perf/schedstat-v17.h>
593 return size;
594 }
595#undef CPU_FIELD
596
597 return fprintf(fp, "Unsupported /proc/schedstat version %d.\n",
598 event->schedstat_cpu.version);
599}
600
601size_t perf_event__fprintf_schedstat_domain(union perf_event *event, FILE *fp)
602{
603 struct perf_record_schedstat_domain *ds = &event->schedstat_domain;
604 __u16 version = ds->version;
605 size_t size = fprintf(fp, "\ndomain%u ", ds->domain);
606
607#define DOMAIN_FIELD(_type, _name, _desc, _format, _is_jiffies, _ver) \
608 size += fprintf(fp, "%" PRIu64 " ", (uint64_t)ds->_ver._name)
609
610 if (version == 15) {
611#include <perf/schedstat-v15.h>
612 return size;
613 } else if (version == 16) {
614#include <perf/schedstat-v16.h>
615 return size;
616 } else if (version == 17) {
617#include <perf/schedstat-v17.h>
618 return size;
619 }
620#undef DOMAIN_FIELD
621
622 return fprintf(fp, "Unsupported /proc/schedstat version %d.\n",
623 event->schedstat_domain.version);
624}
625
626size_t perf_event__fprintf(union perf_event *event, struct machine *machine, FILE *fp)
627{
628 size_t ret = fprintf(fp, "PERF_RECORD_%s",
629 perf_event__name(event->header.type));
630
631 switch (event->header.type) {
632 case PERF_RECORD_COMM:
633 ret += perf_event__fprintf_comm(event, fp);
634 break;
635 case PERF_RECORD_FORK:
636 case PERF_RECORD_EXIT:
637 ret += perf_event__fprintf_task(event, fp);
638 break;
639 case PERF_RECORD_MMAP:
640 ret += perf_event__fprintf_mmap(event, fp);
641 break;
642 case PERF_RECORD_NAMESPACES:
643 ret += perf_event__fprintf_namespaces(event, fp);
644 break;
645 case PERF_RECORD_CGROUP:
646 ret += perf_event__fprintf_cgroup(event, fp);
647 break;
648 case PERF_RECORD_MMAP2:
649 ret += perf_event__fprintf_mmap2(event, fp);
650 break;
651 case PERF_RECORD_AUX:
652 ret += perf_event__fprintf_aux(event, fp);
653 break;
654 case PERF_RECORD_ITRACE_START:
655 ret += perf_event__fprintf_itrace_start(event, fp);
656 break;
657 case PERF_RECORD_SWITCH:
658 case PERF_RECORD_SWITCH_CPU_WIDE:
659 ret += perf_event__fprintf_switch(event, fp);
660 break;
661 case PERF_RECORD_LOST:
662 ret += perf_event__fprintf_lost(event, fp);
663 break;
664 case PERF_RECORD_KSYMBOL:
665 ret += perf_event__fprintf_ksymbol(event, fp);
666 break;
667 case PERF_RECORD_BPF_EVENT:
668 ret += perf_event__fprintf_bpf(event, fp);
669 break;
670 case PERF_RECORD_TEXT_POKE:
671 ret += perf_event__fprintf_text_poke(event, machine, fp);
672 break;
673 case PERF_RECORD_AUX_OUTPUT_HW_ID:
674 ret += perf_event__fprintf_aux_output_hw_id(event, fp);
675 break;
676 case PERF_RECORD_BPF_METADATA:
677 ret += perf_event__fprintf_bpf_metadata(event, fp);
678 break;
679 default:
680 ret += fprintf(fp, "\n");
681 }
682
683 return ret;
684}
685
686int perf_event__process(const struct perf_tool *tool __maybe_unused,
687 union perf_event *event,
688 struct perf_sample *sample,
689 struct machine *machine)
690{
691 return machine__process_event(machine, event, sample);
692}
693
694struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
695 struct addr_location *al)
696{
697 struct maps *maps = thread__maps(thread);
698 struct machine *machine = maps__machine(maps);
699 bool load_map = false;
700
701 map__zput(al->map);
702 thread__zput(al->thread);
703 al->thread = thread__get(thread);
704
705 al->addr = addr;
706 al->cpumode = cpumode;
707 al->filtered = 0;
708
709 if (machine == NULL)
710 return NULL;
711
712 if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) {
713 al->level = 'k';
714 maps = machine__kernel_maps(machine);
715 load_map = !symbol_conf.lazy_load_kernel_maps;
716 } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) {
717 al->level = '.';
718 } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) {
719 al->level = 'g';
720 maps = machine__kernel_maps(machine);
721 load_map = !symbol_conf.lazy_load_kernel_maps;
722 } else if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) {
723 al->level = 'u';
724 } else {
725 al->level = 'H';
726
727 if ((cpumode == PERF_RECORD_MISC_GUEST_USER ||
728 cpumode == PERF_RECORD_MISC_GUEST_KERNEL) &&
729 !perf_guest)
730 al->filtered |= (1 << HIST_FILTER__GUEST);
731 if ((cpumode == PERF_RECORD_MISC_USER ||
732 cpumode == PERF_RECORD_MISC_KERNEL) &&
733 !perf_host)
734 al->filtered |= (1 << HIST_FILTER__HOST);
735
736 return NULL;
737 }
738 al->map = maps__find(maps, al->addr);
739 if (al->map != NULL) {
740 /*
741 * Kernel maps might be changed when loading symbols so loading
742 * must be done prior to using kernel maps.
743 */
744 if (load_map)
745 map__load(al->map);
746 al->addr = map__map_ip(al->map, al->addr);
747 }
748
749 return al->map;
750}
751
752/*
753 * For branch stacks or branch samples, the sample cpumode might not be correct
754 * because it applies only to the sample 'ip' and not necessary to 'addr' or
755 * branch stack addresses. If possible, use a fallback to deal with those cases.
756 */
757struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr,
758 struct addr_location *al)
759{
760 struct map *map = thread__find_map(thread, cpumode, addr, al);
761 struct machine *machine = maps__machine(thread__maps(thread));
762 u8 addr_cpumode = machine__addr_cpumode(machine, cpumode, addr);
763
764 if (map || addr_cpumode == cpumode)
765 return map;
766
767 return thread__find_map(thread, addr_cpumode, addr, al);
768}
769
770struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
771 u64 addr, struct addr_location *al)
772{
773 al->sym = NULL;
774 if (thread__find_map(thread, cpumode, addr, al))
775 al->sym = map__find_symbol(al->map, al->addr);
776 return al->sym;
777}
778
779struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode,
780 u64 addr, struct addr_location *al)
781{
782 al->sym = NULL;
783 if (thread__find_map_fb(thread, cpumode, addr, al))
784 al->sym = map__find_symbol(al->map, al->addr);
785 return al->sym;
786}
787
788static bool check_address_range(struct intlist *addr_list, int addr_range,
789 unsigned long addr)
790{
791 struct int_node *pos;
792
793 intlist__for_each_entry(pos, addr_list) {
794 if (addr >= pos->i && addr < pos->i + addr_range)
795 return true;
796 }
797
798 return false;
799}
800
801/*
802 * Callers need to drop the reference to al->thread, obtained in
803 * machine__findnew_thread()
804 */
805int machine__resolve(struct machine *machine, struct addr_location *al,
806 struct perf_sample *sample)
807{
808 struct thread *thread;
809 struct dso *dso;
810
811 if (symbol_conf.guest_code && !machine__is_host(machine))
812 thread = machine__findnew_guest_code(machine, sample->pid);
813 else
814 thread = machine__findnew_thread(machine, sample->pid, sample->tid);
815 if (thread == NULL)
816 return -1;
817
818 dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread__tid(thread));
819 thread__find_map(thread, sample->cpumode, sample->ip, al);
820 dso = al->map ? map__dso(al->map) : NULL;
821 dump_printf(" ...... dso: %s\n",
822 dso
823 ? dso__long_name(dso)
824 : (al->level == 'H' ? "[hypervisor]" : "<not found>"));
825
826 if (thread__is_filtered(thread))
827 al->filtered |= (1 << HIST_FILTER__THREAD);
828
829 thread__put(thread);
830 thread = NULL;
831
832 al->sym = NULL;
833 al->cpu = sample->cpu;
834 al->socket = -1;
835 al->srcline = NULL;
836
837 if (al->cpu >= 0) {
838 struct perf_env *env = machine->env;
839
840 /*
841 * Bounds-check al->cpu (s32) before casting to struct perf_cpu
842 * (int16_t): without this, e.g. 65536 truncates to 0 and silently
843 * returns CPU 0's topology. Can go once perf_cpu.cpu is widened.
844 */
845 if (env && al->cpu < env->nr_cpus_avail) {
846 struct cpu_topology_map *topo;
847
848 topo = perf_env__get_cpu_topology(env, (struct perf_cpu){ al->cpu });
849 if (topo)
850 al->socket = topo->socket_id;
851 }
852 }
853
854 /* Account for possible out-of-order switch events. */
855 al->parallelism = max(1, min(machine->parallelism, machine__nr_cpus_avail(machine)));
856 if (test_bit(al->parallelism, symbol_conf.parallelism_filter))
857 al->filtered |= (1 << HIST_FILTER__PARALLELISM);
858 /*
859 * Multiply it by some const to avoid precision loss or dealing
860 * with floats. The multiplier does not matter otherwise since
861 * we only print it as percents.
862 */
863 al->latency = sample->period * 1000 / al->parallelism;
864
865 if (al->map) {
866 if (symbol_conf.dso_list &&
867 (!dso || !(strlist__has_entry(symbol_conf.dso_list,
868 dso__short_name(dso)) ||
869 (dso__short_name(dso) != dso__long_name(dso) &&
870 strlist__has_entry(symbol_conf.dso_list,
871 dso__long_name(dso)))))) {
872 al->filtered |= (1 << HIST_FILTER__DSO);
873 }
874
875 al->sym = map__find_symbol(al->map, al->addr);
876 } else if (symbol_conf.dso_list) {
877 al->filtered |= (1 << HIST_FILTER__DSO);
878 }
879
880 if (symbol_conf.sym_list) {
881 int ret = 0;
882 char al_addr_str[32];
883 size_t sz = sizeof(al_addr_str);
884
885 if (al->sym) {
886 ret = strlist__has_entry(symbol_conf.sym_list,
887 al->sym->name);
888 }
889 if (!ret && al->sym) {
890 snprintf(al_addr_str, sz, "0x%"PRIx64,
891 map__unmap_ip(al->map, al->sym->start));
892 ret = strlist__has_entry(symbol_conf.sym_list,
893 al_addr_str);
894 }
895 if (!ret && symbol_conf.addr_list && al->map) {
896 unsigned long addr = map__unmap_ip(al->map, al->addr);
897
898 ret = intlist__has_entry(symbol_conf.addr_list, addr);
899 if (!ret && symbol_conf.addr_range) {
900 ret = check_address_range(symbol_conf.addr_list,
901 symbol_conf.addr_range,
902 addr);
903 }
904 }
905
906 if (!ret)
907 al->filtered |= (1 << HIST_FILTER__SYMBOL);
908 }
909
910 return 0;
911}
912
913bool is_bts_event(struct perf_event_attr *attr)
914{
915 return attr->type == PERF_TYPE_HARDWARE &&
916 (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) &&
917 attr->sample_period == 1;
918}
919
920bool sample_addr_correlates_sym(struct perf_event_attr *attr)
921{
922 if (attr->type == PERF_TYPE_SOFTWARE &&
923 (attr->config == PERF_COUNT_SW_PAGE_FAULTS ||
924 attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN ||
925 attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ))
926 return true;
927
928 if (is_bts_event(attr))
929 return true;
930
931 return false;
932}
933
934void thread__resolve(struct thread *thread, struct addr_location *al,
935 struct perf_sample *sample)
936{
937 thread__find_map_fb(thread, sample->cpumode, sample->addr, al);
938
939 al->cpu = sample->cpu;
940 al->sym = NULL;
941
942 if (al->map)
943 al->sym = map__find_symbol(al->map, al->addr);
944}