850 lines · c
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" is103 * 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 CASE167 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 else181 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_lx64335 " <%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_lx64345 " %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 else368 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 else384 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 loading668 * 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 correct680 * because it applies only to the sample 'ip' and not necessary to 'addr' or681 * 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 in729 * 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 else740 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 dso749 ? 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}850