4 #include <linux/kernel.h>
5 #include <linux/types.h>
6 #include <perf/cpumap.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>
23 #include "thread_map.h"
24 #include "time-utils.h"
25 #include <linux/ctype.h>
27 #include "util/namespaces.h"
29 #include "symbol/kallsyms.h"
33 #include "bpf-event.h"
34 #include "print_binary.h"
38 static const char *perf_event__names[] = {
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",
81 const char *perf_event__name(unsigned int id)
83 if (id >= ARRAY_SIZE(perf_event__names))
85 if (!perf_event__names[id])
87 return perf_event__names[id];
90 struct process_symbol_args {
95 static int find_symbol_cb(void *arg, const char *name, char type,
98 struct process_symbol_args *args = arg;
101 * Must be a function or at least an alias, as in PARISC64, where "_text" is
102 * an 'A' to the same address as "_stext".
104 if (!(kallsyms__is_function(type) ||
105 type == 'A') || strcmp(name, args->name))
112 int kallsyms__get_function_start(const char *kallsyms_filename,
113 const char *symbol_name, u64 *addr)
115 struct process_symbol_args args = { .name = symbol_name, };
117 if (kallsyms__parse(kallsyms_filename, &args, find_symbol_cb) <= 0)
124 void perf_event__read_stat_config(struct perf_stat_config *config,
125 struct perf_record_stat_config *event)
129 for (i = 0; i < event->nr; i++) {
131 switch (event->data[i].tag) {
132 #define CASE(__term, __val) \
133 case PERF_STAT_CONFIG_TERM__##__term: \
134 config->__val = event->data[i].val; \
137 CASE(AGGR_MODE, aggr_mode)
139 CASE(INTERVAL, interval)
142 pr_warning("unknown stat config term %" PRI_lu64 "\n",
148 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp)
152 if (event->header.misc & PERF_RECORD_MISC_COMM_EXEC)
157 return fprintf(fp, "%s: %s:%d/%d\n", s, event->comm.comm, event->comm.pid, event->comm.tid);
160 size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp)
163 struct perf_ns_link_info *ns_link_info;
164 u32 nr_namespaces, idx;
166 ns_link_info = event->namespaces.link_info;
167 nr_namespaces = event->namespaces.nr_namespaces;
169 ret += fprintf(fp, " %d/%d - nr_namespaces: %u\n\t\t[",
170 event->namespaces.pid,
171 event->namespaces.tid,
174 for (idx = 0; idx < nr_namespaces; idx++) {
175 if (idx && (idx % 4 == 0))
176 ret += fprintf(fp, "\n\t\t ");
178 ret += fprintf(fp, "%u/%s: %" PRIu64 "/%#" PRIx64 "%s", idx,
179 perf_ns__name(idx), (u64)ns_link_info[idx].dev,
180 (u64)ns_link_info[idx].ino,
181 ((idx + 1) != nr_namespaces) ? ", " : "]\n");
187 size_t perf_event__fprintf_cgroup(union perf_event *event, FILE *fp)
189 return fprintf(fp, " cgroup: %" PRI_lu64 " %s\n",
190 event->cgroup.id, event->cgroup.path);
193 int perf_event__process_comm(struct perf_tool *tool __maybe_unused,
194 union perf_event *event,
195 struct perf_sample *sample,
196 struct machine *machine)
198 return machine__process_comm_event(machine, event, sample);
201 int perf_event__process_namespaces(struct perf_tool *tool __maybe_unused,
202 union perf_event *event,
203 struct perf_sample *sample,
204 struct machine *machine)
206 return machine__process_namespaces_event(machine, event, sample);
209 int perf_event__process_cgroup(struct perf_tool *tool __maybe_unused,
210 union perf_event *event,
211 struct perf_sample *sample,
212 struct machine *machine)
214 return machine__process_cgroup_event(machine, event, sample);
217 int perf_event__process_lost(struct perf_tool *tool __maybe_unused,
218 union perf_event *event,
219 struct perf_sample *sample,
220 struct machine *machine)
222 return machine__process_lost_event(machine, event, sample);
225 int perf_event__process_aux(struct perf_tool *tool __maybe_unused,
226 union perf_event *event,
227 struct perf_sample *sample __maybe_unused,
228 struct machine *machine)
230 return machine__process_aux_event(machine, event);
233 int perf_event__process_itrace_start(struct perf_tool *tool __maybe_unused,
234 union perf_event *event,
235 struct perf_sample *sample __maybe_unused,
236 struct machine *machine)
238 return machine__process_itrace_start_event(machine, event);
241 int perf_event__process_aux_output_hw_id(struct perf_tool *tool __maybe_unused,
242 union perf_event *event,
243 struct perf_sample *sample __maybe_unused,
244 struct machine *machine)
246 return machine__process_aux_output_hw_id_event(machine, event);
249 int perf_event__process_lost_samples(struct perf_tool *tool __maybe_unused,
250 union perf_event *event,
251 struct perf_sample *sample,
252 struct machine *machine)
254 return machine__process_lost_samples_event(machine, event, sample);
257 int perf_event__process_switch(struct perf_tool *tool __maybe_unused,
258 union perf_event *event,
259 struct perf_sample *sample __maybe_unused,
260 struct machine *machine)
262 return machine__process_switch_event(machine, event);
265 int perf_event__process_ksymbol(struct perf_tool *tool __maybe_unused,
266 union perf_event *event,
267 struct perf_sample *sample __maybe_unused,
268 struct machine *machine)
270 return machine__process_ksymbol(machine, event, sample);
273 int perf_event__process_bpf(struct perf_tool *tool __maybe_unused,
274 union perf_event *event,
275 struct perf_sample *sample,
276 struct machine *machine)
278 return machine__process_bpf(machine, event, sample);
281 int perf_event__process_text_poke(struct perf_tool *tool __maybe_unused,
282 union perf_event *event,
283 struct perf_sample *sample,
284 struct machine *machine)
286 return machine__process_text_poke(machine, event, sample);
289 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp)
291 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64 "]: %c %s\n",
292 event->mmap.pid, event->mmap.tid, event->mmap.start,
293 event->mmap.len, event->mmap.pgoff,
294 (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x',
295 event->mmap.filename);
298 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp)
300 if (event->header.misc & PERF_RECORD_MISC_MMAP_BUILD_ID) {
301 char sbuild_id[SBUILD_ID_SIZE];
304 build_id__init(&bid, event->mmap2.build_id,
305 event->mmap2.build_id_size);
306 build_id__sprintf(&bid, sbuild_id);
308 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64
309 " <%s>]: %c%c%c%c %s\n",
310 event->mmap2.pid, event->mmap2.tid, event->mmap2.start,
311 event->mmap2.len, event->mmap2.pgoff, sbuild_id,
312 (event->mmap2.prot & PROT_READ) ? 'r' : '-',
313 (event->mmap2.prot & PROT_WRITE) ? 'w' : '-',
314 (event->mmap2.prot & PROT_EXEC) ? 'x' : '-',
315 (event->mmap2.flags & MAP_SHARED) ? 's' : 'p',
316 event->mmap2.filename);
318 return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64
319 " %02x:%02x %"PRI_lu64" %"PRI_lu64"]: %c%c%c%c %s\n",
320 event->mmap2.pid, event->mmap2.tid, event->mmap2.start,
321 event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj,
322 event->mmap2.min, event->mmap2.ino,
323 event->mmap2.ino_generation,
324 (event->mmap2.prot & PROT_READ) ? 'r' : '-',
325 (event->mmap2.prot & PROT_WRITE) ? 'w' : '-',
326 (event->mmap2.prot & PROT_EXEC) ? 'x' : '-',
327 (event->mmap2.flags & MAP_SHARED) ? 's' : 'p',
328 event->mmap2.filename);
332 size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp)
334 struct perf_thread_map *threads = thread_map__new_event(&event->thread_map);
337 ret = fprintf(fp, " nr: ");
340 ret += thread_map__fprintf(threads, fp);
342 ret += fprintf(fp, "failed to get threads from event\n");
344 perf_thread_map__put(threads);
348 size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp)
350 struct perf_cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data);
353 ret = fprintf(fp, ": ");
356 ret += cpu_map__fprintf(cpus, fp);
358 ret += fprintf(fp, "failed to get cpumap from event\n");
360 perf_cpu_map__put(cpus);
364 int perf_event__process_mmap(struct perf_tool *tool __maybe_unused,
365 union perf_event *event,
366 struct perf_sample *sample,
367 struct machine *machine)
369 return machine__process_mmap_event(machine, event, sample);
372 int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused,
373 union perf_event *event,
374 struct perf_sample *sample,
375 struct machine *machine)
377 return machine__process_mmap2_event(machine, event, sample);
380 size_t perf_event__fprintf_task(union perf_event *event, FILE *fp)
382 return fprintf(fp, "(%d:%d):(%d:%d)\n",
383 event->fork.pid, event->fork.tid,
384 event->fork.ppid, event->fork.ptid);
387 int perf_event__process_fork(struct perf_tool *tool __maybe_unused,
388 union perf_event *event,
389 struct perf_sample *sample,
390 struct machine *machine)
392 return machine__process_fork_event(machine, event, sample);
395 int perf_event__process_exit(struct perf_tool *tool __maybe_unused,
396 union perf_event *event,
397 struct perf_sample *sample,
398 struct machine *machine)
400 return machine__process_exit_event(machine, event, sample);
403 size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp)
405 return fprintf(fp, " offset: %#"PRI_lx64" size: %#"PRI_lx64" flags: %#"PRI_lx64" [%s%s%s]\n",
406 event->aux.aux_offset, event->aux.aux_size,
408 event->aux.flags & PERF_AUX_FLAG_TRUNCATED ? "T" : "",
409 event->aux.flags & PERF_AUX_FLAG_OVERWRITE ? "O" : "",
410 event->aux.flags & PERF_AUX_FLAG_PARTIAL ? "P" : "");
413 size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp)
415 return fprintf(fp, " pid: %u tid: %u\n",
416 event->itrace_start.pid, event->itrace_start.tid);
419 size_t perf_event__fprintf_aux_output_hw_id(union perf_event *event, FILE *fp)
421 return fprintf(fp, " hw_id: %#"PRI_lx64"\n",
422 event->aux_output_hw_id.hw_id);
425 size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp)
427 bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT;
428 const char *in_out = !out ? "IN " :
429 !(event->header.misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT) ?
430 "OUT " : "OUT preempt";
432 if (event->header.type == PERF_RECORD_SWITCH)
433 return fprintf(fp, " %s\n", in_out);
435 return fprintf(fp, " %s %s pid/tid: %5d/%-5d\n",
436 in_out, out ? "next" : "prev",
437 event->context_switch.next_prev_pid,
438 event->context_switch.next_prev_tid);
441 static size_t perf_event__fprintf_lost(union perf_event *event, FILE *fp)
443 return fprintf(fp, " lost %" PRI_lu64 "\n", event->lost.lost);
446 size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp)
448 return fprintf(fp, " addr %" PRI_lx64 " len %u type %u flags 0x%x name %s\n",
449 event->ksymbol.addr, event->ksymbol.len,
450 event->ksymbol.ksym_type,
451 event->ksymbol.flags, event->ksymbol.name);
454 size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp)
456 return fprintf(fp, " type %u, flags %u, id %u\n",
457 event->bpf.type, event->bpf.flags, event->bpf.id);
460 static int text_poke_printer(enum binary_printer_ops op, unsigned int val,
461 void *extra, FILE *fp)
463 bool old = *(bool *)extra;
466 case BINARY_PRINT_LINE_BEGIN:
467 return fprintf(fp, " %s bytes:", old ? "Old" : "New");
468 case BINARY_PRINT_NUM_DATA:
469 return fprintf(fp, " %02x", val);
470 case BINARY_PRINT_LINE_END:
471 return fprintf(fp, "\n");
477 size_t perf_event__fprintf_text_poke(union perf_event *event, struct machine *machine, FILE *fp)
479 struct perf_record_text_poke_event *tp = &event->text_poke;
483 ret = fprintf(fp, " %" PRI_lx64 " ", tp->addr);
485 struct addr_location al;
487 al.map = maps__find(machine__kernel_maps(machine), tp->addr);
488 if (al.map && map__load(al.map) >= 0) {
489 al.addr = al.map->map_ip(al.map, tp->addr);
490 al.sym = map__find_symbol(al.map, al.addr);
492 ret += symbol__fprintf_symname_offs(al.sym, &al, fp);
495 ret += fprintf(fp, " old len %u new len %u\n", tp->old_len, tp->new_len);
497 ret += binary__fprintf(tp->bytes, tp->old_len, 16, text_poke_printer,
500 ret += binary__fprintf(tp->bytes + tp->old_len, tp->new_len, 16,
501 text_poke_printer, &old, fp);
505 size_t perf_event__fprintf(union perf_event *event, struct machine *machine, FILE *fp)
507 size_t ret = fprintf(fp, "PERF_RECORD_%s",
508 perf_event__name(event->header.type));
510 switch (event->header.type) {
511 case PERF_RECORD_COMM:
512 ret += perf_event__fprintf_comm(event, fp);
514 case PERF_RECORD_FORK:
515 case PERF_RECORD_EXIT:
516 ret += perf_event__fprintf_task(event, fp);
518 case PERF_RECORD_MMAP:
519 ret += perf_event__fprintf_mmap(event, fp);
521 case PERF_RECORD_NAMESPACES:
522 ret += perf_event__fprintf_namespaces(event, fp);
524 case PERF_RECORD_CGROUP:
525 ret += perf_event__fprintf_cgroup(event, fp);
527 case PERF_RECORD_MMAP2:
528 ret += perf_event__fprintf_mmap2(event, fp);
530 case PERF_RECORD_AUX:
531 ret += perf_event__fprintf_aux(event, fp);
533 case PERF_RECORD_ITRACE_START:
534 ret += perf_event__fprintf_itrace_start(event, fp);
536 case PERF_RECORD_SWITCH:
537 case PERF_RECORD_SWITCH_CPU_WIDE:
538 ret += perf_event__fprintf_switch(event, fp);
540 case PERF_RECORD_LOST:
541 ret += perf_event__fprintf_lost(event, fp);
543 case PERF_RECORD_KSYMBOL:
544 ret += perf_event__fprintf_ksymbol(event, fp);
546 case PERF_RECORD_BPF_EVENT:
547 ret += perf_event__fprintf_bpf(event, fp);
549 case PERF_RECORD_TEXT_POKE:
550 ret += perf_event__fprintf_text_poke(event, machine, fp);
552 case PERF_RECORD_AUX_OUTPUT_HW_ID:
553 ret += perf_event__fprintf_aux_output_hw_id(event, fp);
556 ret += fprintf(fp, "\n");
562 int perf_event__process(struct perf_tool *tool __maybe_unused,
563 union perf_event *event,
564 struct perf_sample *sample,
565 struct machine *machine)
567 return machine__process_event(machine, event, sample);
570 struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
571 struct addr_location *al)
573 struct maps *maps = thread->maps;
574 struct machine *machine = maps->machine;
575 bool load_map = false;
580 al->cpumode = cpumode;
583 if (machine == NULL) {
588 if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) {
590 al->maps = maps = machine__kernel_maps(machine);
592 } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) {
594 } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) {
596 al->maps = maps = machine__kernel_maps(machine);
598 } else if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) {
604 if ((cpumode == PERF_RECORD_MISC_GUEST_USER ||
605 cpumode == PERF_RECORD_MISC_GUEST_KERNEL) &&
607 al->filtered |= (1 << HIST_FILTER__GUEST);
608 if ((cpumode == PERF_RECORD_MISC_USER ||
609 cpumode == PERF_RECORD_MISC_KERNEL) &&
611 al->filtered |= (1 << HIST_FILTER__HOST);
616 al->map = maps__find(maps, al->addr);
617 if (al->map != NULL) {
619 * Kernel maps might be changed when loading symbols so loading
620 * must be done prior to using kernel maps.
624 al->addr = al->map->map_ip(al->map, al->addr);
631 * For branch stacks or branch samples, the sample cpumode might not be correct
632 * because it applies only to the sample 'ip' and not necessary to 'addr' or
633 * branch stack addresses. If possible, use a fallback to deal with those cases.
635 struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr,
636 struct addr_location *al)
638 struct map *map = thread__find_map(thread, cpumode, addr, al);
639 struct machine *machine = thread->maps->machine;
640 u8 addr_cpumode = machine__addr_cpumode(machine, cpumode, addr);
642 if (map || addr_cpumode == cpumode)
645 return thread__find_map(thread, addr_cpumode, addr, al);
648 struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
649 u64 addr, struct addr_location *al)
652 if (thread__find_map(thread, cpumode, addr, al))
653 al->sym = map__find_symbol(al->map, al->addr);
657 struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode,
658 u64 addr, struct addr_location *al)
661 if (thread__find_map_fb(thread, cpumode, addr, al))
662 al->sym = map__find_symbol(al->map, al->addr);
666 static bool check_address_range(struct intlist *addr_list, int addr_range,
669 struct int_node *pos;
671 intlist__for_each_entry(pos, addr_list) {
672 if (addr >= pos->i && addr < pos->i + addr_range)
680 * Callers need to drop the reference to al->thread, obtained in
681 * machine__findnew_thread()
683 int machine__resolve(struct machine *machine, struct addr_location *al,
684 struct perf_sample *sample)
686 struct thread *thread;
688 if (symbol_conf.guest_code && !machine__is_host(machine))
689 thread = machine__findnew_guest_code(machine, sample->pid);
691 thread = machine__findnew_thread(machine, sample->pid, sample->tid);
695 dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid);
696 thread__find_map(thread, sample->cpumode, sample->ip, al);
697 dump_printf(" ...... dso: %s\n",
698 al->map ? al->map->dso->long_name :
699 al->level == 'H' ? "[hypervisor]" : "<not found>");
701 if (thread__is_filtered(thread))
702 al->filtered |= (1 << HIST_FILTER__THREAD);
705 al->cpu = sample->cpu;
710 struct perf_env *env = machine->env;
713 al->socket = env->cpu[al->cpu].socket_id;
717 struct dso *dso = al->map->dso;
719 if (symbol_conf.dso_list &&
720 (!dso || !(strlist__has_entry(symbol_conf.dso_list,
722 (dso->short_name != dso->long_name &&
723 strlist__has_entry(symbol_conf.dso_list,
724 dso->long_name))))) {
725 al->filtered |= (1 << HIST_FILTER__DSO);
728 al->sym = map__find_symbol(al->map, al->addr);
729 } else if (symbol_conf.dso_list) {
730 al->filtered |= (1 << HIST_FILTER__DSO);
733 if (symbol_conf.sym_list) {
735 char al_addr_str[32];
736 size_t sz = sizeof(al_addr_str);
739 ret = strlist__has_entry(symbol_conf.sym_list,
742 if (!ret && al->sym) {
743 snprintf(al_addr_str, sz, "0x%"PRIx64,
744 al->map->unmap_ip(al->map, al->sym->start));
745 ret = strlist__has_entry(symbol_conf.sym_list,
748 if (!ret && symbol_conf.addr_list && al->map) {
749 unsigned long addr = al->map->unmap_ip(al->map, al->addr);
751 ret = intlist__has_entry(symbol_conf.addr_list, addr);
752 if (!ret && symbol_conf.addr_range) {
753 ret = check_address_range(symbol_conf.addr_list,
754 symbol_conf.addr_range,
760 al->filtered |= (1 << HIST_FILTER__SYMBOL);
767 * The preprocess_sample method will return with reference counts for the
768 * in it, when done using (and perhaps getting ref counts if needing to
769 * keep a pointer to one of those entries) it must be paired with
770 * addr_location__put(), so that the refcounts can be decremented.
772 void addr_location__put(struct addr_location *al)
774 thread__zput(al->thread);
777 bool is_bts_event(struct perf_event_attr *attr)
779 return attr->type == PERF_TYPE_HARDWARE &&
780 (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) &&
781 attr->sample_period == 1;
784 bool sample_addr_correlates_sym(struct perf_event_attr *attr)
786 if (attr->type == PERF_TYPE_SOFTWARE &&
787 (attr->config == PERF_COUNT_SW_PAGE_FAULTS ||
788 attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN ||
789 attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ))
792 if (is_bts_event(attr))
798 void thread__resolve(struct thread *thread, struct addr_location *al,
799 struct perf_sample *sample)
801 thread__find_map_fb(thread, sample->cpumode, sample->addr, al);
803 al->cpu = sample->cpu;
807 al->sym = map__find_symbol(al->map, al->addr);