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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 "print_binary.h"
35#include "tool.h"
36#include "util.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_AUX_OUTPUT_HW_ID] = "AUX_OUTPUT_HW_ID",
61 [PERF_RECORD_HEADER_ATTR] = "ATTR",
62 [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE",
63 [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA",
64 [PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID",
65 [PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND",
66 [PERF_RECORD_ID_INDEX] = "ID_INDEX",
67 [PERF_RECORD_AUXTRACE_INFO] = "AUXTRACE_INFO",
68 [PERF_RECORD_AUXTRACE] = "AUXTRACE",
69 [PERF_RECORD_AUXTRACE_ERROR] = "AUXTRACE_ERROR",
70 [PERF_RECORD_THREAD_MAP] = "THREAD_MAP",
71 [PERF_RECORD_CPU_MAP] = "CPU_MAP",
72 [PERF_RECORD_STAT_CONFIG] = "STAT_CONFIG",
73 [PERF_RECORD_STAT] = "STAT",
74 [PERF_RECORD_STAT_ROUND] = "STAT_ROUND",
75 [PERF_RECORD_EVENT_UPDATE] = "EVENT_UPDATE",
76 [PERF_RECORD_TIME_CONV] = "TIME_CONV",
77 [PERF_RECORD_HEADER_FEATURE] = "FEATURE",
78 [PERF_RECORD_COMPRESSED] = "COMPRESSED",
79 [PERF_RECORD_FINISHED_INIT] = "FINISHED_INIT",
80};
81
82const char *perf_event__name(unsigned int id)
83{
84 if (id >= ARRAY_SIZE(perf_event__names))
85 return "INVALID";
86 if (!perf_event__names[id])
87 return "UNKNOWN";
88 return perf_event__names[id];
89}
90
91struct process_symbol_args {
92 const char *name;
93 u64 start;
94};
95
96static int find_func_symbol_cb(void *arg, const char *name, char type,
97 u64 start)
98{
99 struct process_symbol_args *args = arg;
100
101 /*
102 * Must be a function or at least an alias, as in PARISC64, where "_text" is
103 * an 'A' to the same address as "_stext".
104 */
105 if (!(kallsyms__is_function(type) ||
106 type == 'A') || strcmp(name, args->name))
107 return 0;
108
109 args->start = start;
110 return 1;
111}
112
113static int find_any_symbol_cb(void *arg, const char *name,
114 char type __maybe_unused, u64 start)
115{
116 struct process_symbol_args *args = arg;
117
118 if (strcmp(name, args->name))
119 return 0;
120
121 args->start = start;
122 return 1;
123}
124
125int kallsyms__get_function_start(const char *kallsyms_filename,
126 const char *symbol_name, u64 *addr)
127{
128 struct process_symbol_args args = { .name = symbol_name, };
129
130 if (kallsyms__parse(kallsyms_filename, &args, find_func_symbol_cb) <= 0)
131 return -1;
132
133 *addr = args.start;
134 return 0;
135}
136
137int kallsyms__get_symbol_start(const char *kallsyms_filename,
138 const char *symbol_name, u64 *addr)
139{
140 struct process_symbol_args args = { .name = symbol_name, };
141
142 if (kallsyms__parse(kallsyms_filename, &args, find_any_symbol_cb) <= 0)
143 return -1;
144
145 *addr = args.start;
146 return 0;
147}
148
149void perf_event__read_stat_config(struct perf_stat_config *config,
150 struct perf_record_stat_config *event)
151{
152 unsigned i;
153
154 for (i = 0; i < event->nr; i++) {
155
156 switch (event->data[i].tag) {
157#define CASE(__term, __val) \
158 case PERF_STAT_CONFIG_TERM__##__term: \
159 config->__val = event->data[i].val; \
160 break;
161
162 CASE(AGGR_MODE, aggr_mode)
163 CASE(SCALE, scale)
164 CASE(INTERVAL, interval)
165 CASE(AGGR_LEVEL, aggr_level)
166#undef CASE
167 default:
168 pr_warning("unknown stat config term %" PRI_lu64 "\n",
169 event->data[i].tag);
170 }
171 }
172}
173
174size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp)
175{
176 const char *s;
177
178 if (event->header.misc & PERF_RECORD_MISC_COMM_EXEC)
179 s = " exec";
180 else
181 s = "";
182
183 return fprintf(fp, "%s: %s:%d/%d\n", s, event->comm.comm, event->comm.pid, event->comm.tid);
184}
185
186size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp)
187{
188 size_t ret = 0;
189 struct perf_ns_link_info *ns_link_info;
190 u32 nr_namespaces, idx;
191
192 ns_link_info = event->namespaces.link_info;
193 nr_namespaces = event->namespaces.nr_namespaces;
194
195 ret += fprintf(fp, " %d/%d - nr_namespaces: %u\n\t\t[",
196 event->namespaces.pid,
197 event->namespaces.tid,
198 nr_namespaces);
199
200 for (idx = 0; idx < nr_namespaces; idx++) {
201 if (idx && (idx % 4 == 0))
202 ret += fprintf(fp, "\n\t\t ");
203
204 ret += fprintf(fp, "%u/%s: %" PRIu64 "/%#" PRIx64 "%s", idx,
205 perf_ns__name(idx), (u64)ns_link_info[idx].dev,
206 (u64)ns_link_info[idx].ino,
207 ((idx + 1) != nr_namespaces) ? ", " : "]\n");
208 }
209
210 return ret;
211}
212
213size_t perf_event__fprintf_cgroup(union perf_event *event, FILE *fp)
214{
215 return fprintf(fp, " cgroup: %" PRI_lu64 " %s\n",
216 event->cgroup.id, event->cgroup.path);
217}
218
219int perf_event__process_comm(const struct perf_tool *tool __maybe_unused,
220 union perf_event *event,
221 struct perf_sample *sample,
222 struct machine *machine)
223{
224 return machine__process_comm_event(machine, event, sample);
225}
226
227int perf_event__process_namespaces(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_namespaces_event(machine, event, sample);
233}
234
235int perf_event__process_cgroup(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_cgroup_event(machine, event, sample);
241}
242
243int perf_event__process_lost(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_lost_event(machine, event, sample);
249}
250
251int perf_event__process_aux(const struct perf_tool *tool __maybe_unused,
252 union perf_event *event,
253 struct perf_sample *sample __maybe_unused,
254 struct machine *machine)
255{
256 return machine__process_aux_event(machine, event);
257}
258
259int perf_event__process_itrace_start(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_itrace_start_event(machine, event);
265}
266
267int perf_event__process_aux_output_hw_id(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_aux_output_hw_id_event(machine, event);
273}
274
275int perf_event__process_lost_samples(const struct perf_tool *tool __maybe_unused,
276 union perf_event *event,
277 struct perf_sample *sample,
278 struct machine *machine)
279{
280 return machine__process_lost_samples_event(machine, event, sample);
281}
282
283int perf_event__process_switch(const struct perf_tool *tool __maybe_unused,
284 union perf_event *event,
285 struct perf_sample *sample __maybe_unused,
286 struct machine *machine)
287{
288 return machine__process_switch_event(machine, event);
289}
290
291int perf_event__process_ksymbol(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_ksymbol(machine, event, sample);
297}
298
299int perf_event__process_bpf(const struct perf_tool *tool __maybe_unused,
300 union perf_event *event,
301 struct perf_sample *sample,
302 struct machine *machine)
303{
304 return machine__process_bpf(machine, event, sample);
305}
306
307int perf_event__process_text_poke(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_text_poke(machine, event, sample);
313}
314
315size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp)
316{
317 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64 "]: %c %s\n",
318 event->mmap.pid, event->mmap.tid, event->mmap.start,
319 event->mmap.len, event->mmap.pgoff,
320 (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x',
321 event->mmap.filename);
322}
323
324size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp)
325{
326 if (event->header.misc & PERF_RECORD_MISC_MMAP_BUILD_ID) {
327 char sbuild_id[SBUILD_ID_SIZE];
328 struct build_id bid;
329
330 build_id__init(&bid, event->mmap2.build_id,
331 event->mmap2.build_id_size);
332 build_id__sprintf(&bid, sbuild_id);
333
334 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64
335 " <%s>]: %c%c%c%c %s\n",
336 event->mmap2.pid, event->mmap2.tid, event->mmap2.start,
337 event->mmap2.len, event->mmap2.pgoff, sbuild_id,
338 (event->mmap2.prot & PROT_READ) ? 'r' : '-',
339 (event->mmap2.prot & PROT_WRITE) ? 'w' : '-',
340 (event->mmap2.prot & PROT_EXEC) ? 'x' : '-',
341 (event->mmap2.flags & MAP_SHARED) ? 's' : 'p',
342 event->mmap2.filename);
343 } else {
344 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64
345 " %02x:%02x %"PRI_lu64" %"PRI_lu64"]: %c%c%c%c %s\n",
346 event->mmap2.pid, event->mmap2.tid, event->mmap2.start,
347 event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj,
348 event->mmap2.min, event->mmap2.ino,
349 event->mmap2.ino_generation,
350 (event->mmap2.prot & PROT_READ) ? 'r' : '-',
351 (event->mmap2.prot & PROT_WRITE) ? 'w' : '-',
352 (event->mmap2.prot & PROT_EXEC) ? 'x' : '-',
353 (event->mmap2.flags & MAP_SHARED) ? 's' : 'p',
354 event->mmap2.filename);
355 }
356}
357
358size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp)
359{
360 struct perf_thread_map *threads = thread_map__new_event(&event->thread_map);
361 size_t ret;
362
363 ret = fprintf(fp, " nr: ");
364
365 if (threads)
366 ret += thread_map__fprintf(threads, fp);
367 else
368 ret += fprintf(fp, "failed to get threads from event\n");
369
370 perf_thread_map__put(threads);
371 return ret;
372}
373
374size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp)
375{
376 struct perf_cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data);
377 size_t ret;
378
379 ret = fprintf(fp, ": ");
380
381 if (cpus)
382 ret += cpu_map__fprintf(cpus, fp);
383 else
384 ret += fprintf(fp, "failed to get cpumap from event\n");
385
386 perf_cpu_map__put(cpus);
387 return ret;
388}
389
390int perf_event__process_mmap(const struct perf_tool *tool __maybe_unused,
391 union perf_event *event,
392 struct perf_sample *sample,
393 struct machine *machine)
394{
395 return machine__process_mmap_event(machine, event, sample);
396}
397
398int perf_event__process_mmap2(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_mmap2_event(machine, event, sample);
404}
405
406size_t perf_event__fprintf_task(union perf_event *event, FILE *fp)
407{
408 return fprintf(fp, "(%d:%d):(%d:%d)\n",
409 event->fork.pid, event->fork.tid,
410 event->fork.ppid, event->fork.ptid);
411}
412
413int perf_event__process_fork(const struct perf_tool *tool __maybe_unused,
414 union perf_event *event,
415 struct perf_sample *sample,
416 struct machine *machine)
417{
418 return machine__process_fork_event(machine, event, sample);
419}
420
421int perf_event__process_exit(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_exit_event(machine, event, sample);
427}
428
429int perf_event__exit_del_thread(const struct perf_tool *tool __maybe_unused,
430 union perf_event *event,
431 struct perf_sample *sample __maybe_unused,
432 struct machine *machine)
433{
434 struct thread *thread = machine__findnew_thread(machine,
435 event->fork.pid,
436 event->fork.tid);
437
438 dump_printf("(%d:%d):(%d:%d)\n", event->fork.pid, event->fork.tid,
439 event->fork.ppid, event->fork.ptid);
440
441 if (thread) {
442 machine__remove_thread(machine, thread);
443 thread__put(thread);
444 }
445
446 return 0;
447}
448
449size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp)
450{
451 return fprintf(fp, " offset: %#"PRI_lx64" size: %#"PRI_lx64" flags: %#"PRI_lx64" [%s%s%s]\n",
452 event->aux.aux_offset, event->aux.aux_size,
453 event->aux.flags,
454 event->aux.flags & PERF_AUX_FLAG_TRUNCATED ? "T" : "",
455 event->aux.flags & PERF_AUX_FLAG_OVERWRITE ? "O" : "",
456 event->aux.flags & PERF_AUX_FLAG_PARTIAL ? "P" : "");
457}
458
459size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp)
460{
461 return fprintf(fp, " pid: %u tid: %u\n",
462 event->itrace_start.pid, event->itrace_start.tid);
463}
464
465size_t perf_event__fprintf_aux_output_hw_id(union perf_event *event, FILE *fp)
466{
467 return fprintf(fp, " hw_id: %#"PRI_lx64"\n",
468 event->aux_output_hw_id.hw_id);
469}
470
471size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp)
472{
473 bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT;
474 const char *in_out = !out ? "IN " :
475 !(event->header.misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT) ?
476 "OUT " : "OUT preempt";
477
478 if (event->header.type == PERF_RECORD_SWITCH)
479 return fprintf(fp, " %s\n", in_out);
480
481 return fprintf(fp, " %s %s pid/tid: %5d/%-5d\n",
482 in_out, out ? "next" : "prev",
483 event->context_switch.next_prev_pid,
484 event->context_switch.next_prev_tid);
485}
486
487static size_t perf_event__fprintf_lost(union perf_event *event, FILE *fp)
488{
489 return fprintf(fp, " lost %" PRI_lu64 "\n", event->lost.lost);
490}
491
492size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp)
493{
494 return fprintf(fp, " addr %" PRI_lx64 " len %u type %u flags 0x%x name %s\n",
495 event->ksymbol.addr, event->ksymbol.len,
496 event->ksymbol.ksym_type,
497 event->ksymbol.flags, event->ksymbol.name);
498}
499
500size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp)
501{
502 return fprintf(fp, " type %u, flags %u, id %u\n",
503 event->bpf.type, event->bpf.flags, event->bpf.id);
504}
505
506static int text_poke_printer(enum binary_printer_ops op, unsigned int val,
507 void *extra, FILE *fp)
508{
509 bool old = *(bool *)extra;
510
511 switch ((int)op) {
512 case BINARY_PRINT_LINE_BEGIN:
513 return fprintf(fp, " %s bytes:", old ? "Old" : "New");
514 case BINARY_PRINT_NUM_DATA:
515 return fprintf(fp, " %02x", val);
516 case BINARY_PRINT_LINE_END:
517 return fprintf(fp, "\n");
518 default:
519 return 0;
520 }
521}
522
523size_t perf_event__fprintf_text_poke(union perf_event *event, struct machine *machine, FILE *fp)
524{
525 struct perf_record_text_poke_event *tp = &event->text_poke;
526 size_t ret;
527 bool old;
528
529 ret = fprintf(fp, " %" PRI_lx64 " ", tp->addr);
530 if (machine) {
531 struct addr_location al;
532
533 addr_location__init(&al);
534 al.map = maps__find(machine__kernel_maps(machine), tp->addr);
535 if (al.map && map__load(al.map) >= 0) {
536 al.addr = map__map_ip(al.map, tp->addr);
537 al.sym = map__find_symbol(al.map, al.addr);
538 if (al.sym)
539 ret += symbol__fprintf_symname_offs(al.sym, &al, fp);
540 }
541 addr_location__exit(&al);
542 }
543 ret += fprintf(fp, " old len %u new len %u\n", tp->old_len, tp->new_len);
544 old = true;
545 ret += binary__fprintf(tp->bytes, tp->old_len, 16, text_poke_printer,
546 &old, fp);
547 old = false;
548 ret += binary__fprintf(tp->bytes + tp->old_len, tp->new_len, 16,
549 text_poke_printer, &old, fp);
550 return ret;
551}
552
553size_t perf_event__fprintf(union perf_event *event, struct machine *machine, FILE *fp)
554{
555 size_t ret = fprintf(fp, "PERF_RECORD_%s",
556 perf_event__name(event->header.type));
557
558 switch (event->header.type) {
559 case PERF_RECORD_COMM:
560 ret += perf_event__fprintf_comm(event, fp);
561 break;
562 case PERF_RECORD_FORK:
563 case PERF_RECORD_EXIT:
564 ret += perf_event__fprintf_task(event, fp);
565 break;
566 case PERF_RECORD_MMAP:
567 ret += perf_event__fprintf_mmap(event, fp);
568 break;
569 case PERF_RECORD_NAMESPACES:
570 ret += perf_event__fprintf_namespaces(event, fp);
571 break;
572 case PERF_RECORD_CGROUP:
573 ret += perf_event__fprintf_cgroup(event, fp);
574 break;
575 case PERF_RECORD_MMAP2:
576 ret += perf_event__fprintf_mmap2(event, fp);
577 break;
578 case PERF_RECORD_AUX:
579 ret += perf_event__fprintf_aux(event, fp);
580 break;
581 case PERF_RECORD_ITRACE_START:
582 ret += perf_event__fprintf_itrace_start(event, fp);
583 break;
584 case PERF_RECORD_SWITCH:
585 case PERF_RECORD_SWITCH_CPU_WIDE:
586 ret += perf_event__fprintf_switch(event, fp);
587 break;
588 case PERF_RECORD_LOST:
589 ret += perf_event__fprintf_lost(event, fp);
590 break;
591 case PERF_RECORD_KSYMBOL:
592 ret += perf_event__fprintf_ksymbol(event, fp);
593 break;
594 case PERF_RECORD_BPF_EVENT:
595 ret += perf_event__fprintf_bpf(event, fp);
596 break;
597 case PERF_RECORD_TEXT_POKE:
598 ret += perf_event__fprintf_text_poke(event, machine, fp);
599 break;
600 case PERF_RECORD_AUX_OUTPUT_HW_ID:
601 ret += perf_event__fprintf_aux_output_hw_id(event, fp);
602 break;
603 default:
604 ret += fprintf(fp, "\n");
605 }
606
607 return ret;
608}
609
610int perf_event__process(const struct perf_tool *tool __maybe_unused,
611 union perf_event *event,
612 struct perf_sample *sample,
613 struct machine *machine)
614{
615 return machine__process_event(machine, event, sample);
616}
617
618struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
619 struct addr_location *al)
620{
621 struct maps *maps = thread__maps(thread);
622 struct machine *machine = maps__machine(maps);
623 bool load_map = false;
624
625 maps__zput(al->maps);
626 map__zput(al->map);
627 thread__zput(al->thread);
628 al->thread = thread__get(thread);
629
630 al->addr = addr;
631 al->cpumode = cpumode;
632 al->filtered = 0;
633
634 if (machine == NULL)
635 return NULL;
636
637 if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) {
638 al->level = 'k';
639 maps = machine__kernel_maps(machine);
640 load_map = !symbol_conf.lazy_load_kernel_maps;
641 } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) {
642 al->level = '.';
643 } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) {
644 al->level = 'g';
645 maps = machine__kernel_maps(machine);
646 load_map = !symbol_conf.lazy_load_kernel_maps;
647 } else if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) {
648 al->level = 'u';
649 } else {
650 al->level = 'H';
651
652 if ((cpumode == PERF_RECORD_MISC_GUEST_USER ||
653 cpumode == PERF_RECORD_MISC_GUEST_KERNEL) &&
654 !perf_guest)
655 al->filtered |= (1 << HIST_FILTER__GUEST);
656 if ((cpumode == PERF_RECORD_MISC_USER ||
657 cpumode == PERF_RECORD_MISC_KERNEL) &&
658 !perf_host)
659 al->filtered |= (1 << HIST_FILTER__HOST);
660
661 return NULL;
662 }
663 al->maps = maps__get(maps);
664 al->map = maps__find(maps, al->addr);
665 if (al->map != NULL) {
666 /*
667 * Kernel maps might be changed when loading symbols so loading
668 * must be done prior to using kernel maps.
669 */
670 if (load_map)
671 map__load(al->map);
672 al->addr = map__map_ip(al->map, al->addr);
673 }
674
675 return al->map;
676}
677
678/*
679 * For branch stacks or branch samples, the sample cpumode might not be correct
680 * because it applies only to the sample 'ip' and not necessary to 'addr' or
681 * branch stack addresses. If possible, use a fallback to deal with those cases.
682 */
683struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr,
684 struct addr_location *al)
685{
686 struct map *map = thread__find_map(thread, cpumode, addr, al);
687 struct machine *machine = maps__machine(thread__maps(thread));
688 u8 addr_cpumode = machine__addr_cpumode(machine, cpumode, addr);
689
690 if (map || addr_cpumode == cpumode)
691 return map;
692
693 return thread__find_map(thread, addr_cpumode, addr, al);
694}
695
696struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
697 u64 addr, struct addr_location *al)
698{
699 al->sym = NULL;
700 if (thread__find_map(thread, cpumode, addr, al))
701 al->sym = map__find_symbol(al->map, al->addr);
702 return al->sym;
703}
704
705struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode,
706 u64 addr, struct addr_location *al)
707{
708 al->sym = NULL;
709 if (thread__find_map_fb(thread, cpumode, addr, al))
710 al->sym = map__find_symbol(al->map, al->addr);
711 return al->sym;
712}
713
714static bool check_address_range(struct intlist *addr_list, int addr_range,
715 unsigned long addr)
716{
717 struct int_node *pos;
718
719 intlist__for_each_entry(pos, addr_list) {
720 if (addr >= pos->i && addr < pos->i + addr_range)
721 return true;
722 }
723
724 return false;
725}
726
727/*
728 * Callers need to drop the reference to al->thread, obtained in
729 * machine__findnew_thread()
730 */
731int machine__resolve(struct machine *machine, struct addr_location *al,
732 struct perf_sample *sample)
733{
734 struct thread *thread;
735 struct dso *dso;
736
737 if (symbol_conf.guest_code && !machine__is_host(machine))
738 thread = machine__findnew_guest_code(machine, sample->pid);
739 else
740 thread = machine__findnew_thread(machine, sample->pid, sample->tid);
741 if (thread == NULL)
742 return -1;
743
744 dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread__tid(thread));
745 thread__find_map(thread, sample->cpumode, sample->ip, al);
746 dso = al->map ? map__dso(al->map) : NULL;
747 dump_printf(" ...... dso: %s\n",
748 dso
749 ? dso__long_name(dso)
750 : (al->level == 'H' ? "[hypervisor]" : "<not found>"));
751
752 if (thread__is_filtered(thread))
753 al->filtered |= (1 << HIST_FILTER__THREAD);
754
755 thread__put(thread);
756 thread = NULL;
757
758 al->sym = NULL;
759 al->cpu = sample->cpu;
760 al->socket = -1;
761 al->srcline = NULL;
762
763 if (al->cpu >= 0) {
764 struct perf_env *env = machine->env;
765
766 if (env && env->cpu)
767 al->socket = env->cpu[al->cpu].socket_id;
768 }
769
770 if (al->map) {
771 if (symbol_conf.dso_list &&
772 (!dso || !(strlist__has_entry(symbol_conf.dso_list,
773 dso__short_name(dso)) ||
774 (dso__short_name(dso) != dso__long_name(dso) &&
775 strlist__has_entry(symbol_conf.dso_list,
776 dso__long_name(dso)))))) {
777 al->filtered |= (1 << HIST_FILTER__DSO);
778 }
779
780 al->sym = map__find_symbol(al->map, al->addr);
781 } else if (symbol_conf.dso_list) {
782 al->filtered |= (1 << HIST_FILTER__DSO);
783 }
784
785 if (symbol_conf.sym_list) {
786 int ret = 0;
787 char al_addr_str[32];
788 size_t sz = sizeof(al_addr_str);
789
790 if (al->sym) {
791 ret = strlist__has_entry(symbol_conf.sym_list,
792 al->sym->name);
793 }
794 if (!ret && al->sym) {
795 snprintf(al_addr_str, sz, "0x%"PRIx64,
796 map__unmap_ip(al->map, al->sym->start));
797 ret = strlist__has_entry(symbol_conf.sym_list,
798 al_addr_str);
799 }
800 if (!ret && symbol_conf.addr_list && al->map) {
801 unsigned long addr = map__unmap_ip(al->map, al->addr);
802
803 ret = intlist__has_entry(symbol_conf.addr_list, addr);
804 if (!ret && symbol_conf.addr_range) {
805 ret = check_address_range(symbol_conf.addr_list,
806 symbol_conf.addr_range,
807 addr);
808 }
809 }
810
811 if (!ret)
812 al->filtered |= (1 << HIST_FILTER__SYMBOL);
813 }
814
815 return 0;
816}
817
818bool is_bts_event(struct perf_event_attr *attr)
819{
820 return attr->type == PERF_TYPE_HARDWARE &&
821 (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) &&
822 attr->sample_period == 1;
823}
824
825bool sample_addr_correlates_sym(struct perf_event_attr *attr)
826{
827 if (attr->type == PERF_TYPE_SOFTWARE &&
828 (attr->config == PERF_COUNT_SW_PAGE_FAULTS ||
829 attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN ||
830 attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ))
831 return true;
832
833 if (is_bts_event(attr))
834 return true;
835
836 return false;
837}
838
839void thread__resolve(struct thread *thread, struct addr_location *al,
840 struct perf_sample *sample)
841{
842 thread__find_map_fb(thread, sample->cpumode, sample->addr, al);
843
844 al->cpu = sample->cpu;
845 al->sym = NULL;
846
847 if (al->map)
848 al->sym = map__find_symbol(al->map, al->addr);
849}
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 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
304size_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
320size_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
336int 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
344int 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
352size_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
359int 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
367int 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
375size_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
385size_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
391size_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
407static 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
412size_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
420size_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
426static 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
443size_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
471size_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
525int 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
533struct 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 */
598struct 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
611struct 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
620struct 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 */
633int 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 */
706void addr_location__put(struct addr_location *al)
707{
708 thread__zput(al->thread);
709}
710
711bool 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
718bool 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
732void 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}