191007045SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 286470930SIngo Molnar /* 386470930SIngo Molnar * builtin-top.c 486470930SIngo Molnar * 586470930SIngo Molnar * Builtin top command: Display a continuously updated profile of 686470930SIngo Molnar * any workload, CPU or specific PID. 786470930SIngo Molnar * 886470930SIngo Molnar * Copyright (C) 2008, Red Hat Inc, Ingo Molnar <mingo@redhat.com> 9ab81f3fdSArnaldo Carvalho de Melo * 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> 1086470930SIngo Molnar * 1186470930SIngo Molnar * Improvements and fixes by: 1286470930SIngo Molnar * 1386470930SIngo Molnar * Arjan van de Ven <arjan@linux.intel.com> 1486470930SIngo Molnar * Yanmin Zhang <yanmin.zhang@intel.com> 1586470930SIngo Molnar * Wu Fengguang <fengguang.wu@intel.com> 1686470930SIngo Molnar * Mike Galbraith <efault@gmx.de> 1786470930SIngo Molnar * Paul Mackerras <paulus@samba.org> 1886470930SIngo Molnar */ 1986470930SIngo Molnar #include "builtin.h" 2086470930SIngo Molnar 2186470930SIngo Molnar #include "perf.h" 2286470930SIngo Molnar 2336532461SArnaldo Carvalho de Melo #include "util/annotate.h" 24a40b95bcSArnaldo Carvalho de Melo #include "util/bpf-event.h" 2551f38242SJoshua Martinez #include "util/cgroup.h" 2641840d21STaeung Song #include "util/config.h" 2786470930SIngo Molnar #include "util/color.h" 284a3cec84SArnaldo Carvalho de Melo #include "util/dso.h" 29361c99a6SArnaldo Carvalho de Melo #include "util/evlist.h" 3069aad6f1SArnaldo Carvalho de Melo #include "util/evsel.h" 3195be9d19SArnaldo Carvalho de Melo #include "util/evsel_config.h" 325ab8c689SArnaldo Carvalho de Melo #include "util/event.h" 33b0a7d1a0SArnaldo Carvalho de Melo #include "util/machine.h" 341101f69aSArnaldo Carvalho de Melo #include "util/map.h" 35e0fcfb08SArnaldo Carvalho de Melo #include "util/mmap.h" 36b3165f41SArnaldo Carvalho de Melo #include "util/session.h" 3713e0c844SKan Liang #include "util/thread.h" 38b3165f41SArnaldo Carvalho de Melo #include "util/symbol.h" 39ea49e01cSArnaldo Carvalho de Melo #include "util/synthetic-events.h" 408c3e10ebSArnaldo Carvalho de Melo #include "util/top.h" 412da39f1cSArnaldo Carvalho de Melo #include "util/util.h" 4243cbcd8aSArnaldo Carvalho de Melo #include <linux/rbtree.h> 434b6ab94eSJosh Poimboeuf #include <subcmd/parse-options.h> 4486470930SIngo Molnar #include "util/parse-events.h" 455c9dbe6dSArnaldo Carvalho de Melo #include "util/callchain.h" 46a12b51c4SPaul Mackerras #include "util/cpumap.h" 47ab81f3fdSArnaldo Carvalho de Melo #include "util/sort.h" 486a9fa4e3SArnaldo Carvalho de Melo #include "util/string2.h" 49b0742e90SArnaldo Carvalho de Melo #include "util/term.h" 506b118e92SDavid Ahern #include "util/intlist.h" 51a18b027eSAndi Kleen #include "util/parse-branch-options.h" 520d3942dbSSukadev Bhattiprolu #include "arch/common.h" 538520a98dSArnaldo Carvalho de Melo #include "ui/ui.h" 5486470930SIngo Molnar 558f28827aSFrederic Weisbecker #include "util/debug.h" 5616c66bc1SJiri Olsa #include "util/ordered-events.h" 5770943490SStephane Eranian #include "util/pfm.h" 588f28827aSFrederic Weisbecker 5986470930SIngo Molnar #include <assert.h> 6031d68e7bSArnaldo Carvalho de Melo #include <elf.h> 6186470930SIngo Molnar #include <fcntl.h> 6286470930SIngo Molnar 6386470930SIngo Molnar #include <stdio.h> 64923c42c1SMike Galbraith #include <termios.h> 65923c42c1SMike Galbraith #include <unistd.h> 669486aa38SArnaldo Carvalho de Melo #include <inttypes.h> 6786470930SIngo Molnar 6886470930SIngo Molnar #include <errno.h> 6986470930SIngo Molnar #include <time.h> 7086470930SIngo Molnar #include <sched.h> 719607ad3aSArnaldo Carvalho de Melo #include <signal.h> 7286470930SIngo Molnar 7386470930SIngo Molnar #include <sys/syscall.h> 7486470930SIngo Molnar #include <sys/ioctl.h> 75a8fa4960SArnaldo Carvalho de Melo #include <poll.h> 7686470930SIngo Molnar #include <sys/prctl.h> 7786470930SIngo Molnar #include <sys/wait.h> 7886470930SIngo Molnar #include <sys/uio.h> 7931d68e7bSArnaldo Carvalho de Melo #include <sys/utsname.h> 8086470930SIngo Molnar #include <sys/mman.h> 8186470930SIngo Molnar 82531d2410SArnaldo Carvalho de Melo #include <linux/stringify.h> 83b9c4b0f4SArnaldo Carvalho de Melo #include <linux/time64.h> 8486470930SIngo Molnar #include <linux/types.h> 856ef81c55SMamatha Inamdar #include <linux/err.h> 8686470930SIngo Molnar 873052ba56SArnaldo Carvalho de Melo #include <linux/ctype.h> 887728fa0cSJiri Olsa #include <perf/mmap.h> 893d689ed6SArnaldo Carvalho de Melo 9011859e82SArnaldo Carvalho de Melo static volatile int done; 91b135e5eeSJiri Olsa static volatile int resize; 9211859e82SArnaldo Carvalho de Melo 93933cbb1cSNamhyung Kim #define HEADER_LINE_NR 5 94933cbb1cSNamhyung Kim 951758af10SArnaldo Carvalho de Melo static void perf_top__update_print_entries(struct perf_top *top) 963b6ed988SArnaldo Carvalho de Melo { 97933cbb1cSNamhyung Kim top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; 983b6ed988SArnaldo Carvalho de Melo } 993b6ed988SArnaldo Carvalho de Melo 100244a1086SJiri Olsa static void winch_sig(int sig __maybe_unused) 1013b6ed988SArnaldo Carvalho de Melo { 102b135e5eeSJiri Olsa resize = 1; 103b135e5eeSJiri Olsa } 1041758af10SArnaldo Carvalho de Melo 105b135e5eeSJiri Olsa static void perf_top__resize(struct perf_top *top) 106b135e5eeSJiri Olsa { 1071758af10SArnaldo Carvalho de Melo get_term_dimensions(&top->winsize); 1081758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(top); 1093b6ed988SArnaldo Carvalho de Melo } 1103b6ed988SArnaldo Carvalho de Melo 1111758af10SArnaldo Carvalho de Melo static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) 112923c42c1SMike Galbraith { 11332dcd021SJiri Olsa struct evsel *evsel; 114923c42c1SMike Galbraith struct symbol *sym; 115ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 116439d473bSArnaldo Carvalho de Melo struct map *map; 11736532461SArnaldo Carvalho de Melo int err = -1; 118923c42c1SMike Galbraith 119ab81f3fdSArnaldo Carvalho de Melo if (!he || !he->ms.sym) 120b0a9ab62SArnaldo Carvalho de Melo return -1; 121b0a9ab62SArnaldo Carvalho de Melo 122111442cfSLeo Yan evsel = hists_to_evsel(he->hists); 123111442cfSLeo Yan 124ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 125ab81f3fdSArnaldo Carvalho de Melo map = he->ms.map; 126b0a9ab62SArnaldo Carvalho de Melo 127b0a9ab62SArnaldo Carvalho de Melo /* 128b0a9ab62SArnaldo Carvalho de Melo * We can't annotate with just /proc/kallsyms 129b0a9ab62SArnaldo Carvalho de Melo */ 130bbb7f846SAdrian Hunter if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && 131bbb7f846SAdrian Hunter !dso__is_kcore(map->dso)) { 132ce6f4fabSArnaldo Carvalho de Melo pr_err("Can't annotate %s: No vmlinux file was found in the " 133ce6f4fabSArnaldo Carvalho de Melo "path\n", sym->name); 134ce6f4fabSArnaldo Carvalho de Melo sleep(1); 135b0a9ab62SArnaldo Carvalho de Melo return -1; 136b269876cSArnaldo Carvalho de Melo } 137b269876cSArnaldo Carvalho de Melo 138ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 139ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 140923c42c1SMike Galbraith 1416484d2f9SJiri Olsa if (!symbol__hists(sym, top->evlist->core.nr_entries)) { 142c97cf422SArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 14336532461SArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 14436532461SArnaldo Carvalho de Melo sym->name); 145ce6f4fabSArnaldo Carvalho de Melo sleep(1); 146c97cf422SArnaldo Carvalho de Melo return err; 147923c42c1SMike Galbraith } 14836532461SArnaldo Carvalho de Melo 149e0ad4d68SRavi Bangoria err = symbol__annotate(&he->ms, evsel, &top->annotation_opts, NULL); 15036532461SArnaldo Carvalho de Melo if (err == 0) { 1511758af10SArnaldo Carvalho de Melo top->sym_filter_entry = he; 152ee51d851SArnaldo Carvalho de Melo } else { 153ee51d851SArnaldo Carvalho de Melo char msg[BUFSIZ]; 15429754894SArnaldo Carvalho de Melo symbol__strerror_disassemble(&he->ms, err, msg, sizeof(msg)); 155ee51d851SArnaldo Carvalho de Melo pr_err("Couldn't annotate %s: %s\n", sym->name, msg); 15636532461SArnaldo Carvalho de Melo } 157c97cf422SArnaldo Carvalho de Melo 158ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 15936532461SArnaldo Carvalho de Melo return err; 160923c42c1SMike Galbraith } 161923c42c1SMike Galbraith 162ab81f3fdSArnaldo Carvalho de Melo static void __zero_source_counters(struct hist_entry *he) 163923c42c1SMike Galbraith { 164ab81f3fdSArnaldo Carvalho de Melo struct symbol *sym = he->ms.sym; 16536532461SArnaldo Carvalho de Melo symbol__annotate_zero_histograms(sym); 166923c42c1SMike Galbraith } 167923c42c1SMike Galbraith 16831d68e7bSArnaldo Carvalho de Melo static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) 16931d68e7bSArnaldo Carvalho de Melo { 17031d68e7bSArnaldo Carvalho de Melo struct utsname uts; 17131d68e7bSArnaldo Carvalho de Melo int err = uname(&uts); 17231d68e7bSArnaldo Carvalho de Melo 17331d68e7bSArnaldo Carvalho de Melo ui__warning("Out of bounds address found:\n\n" 17431d68e7bSArnaldo Carvalho de Melo "Addr: %" PRIx64 "\n" 17531d68e7bSArnaldo Carvalho de Melo "DSO: %s %c\n" 17631d68e7bSArnaldo Carvalho de Melo "Map: %" PRIx64 "-%" PRIx64 "\n" 17731d68e7bSArnaldo Carvalho de Melo "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" 17831d68e7bSArnaldo Carvalho de Melo "Arch: %s\n" 17931d68e7bSArnaldo Carvalho de Melo "Kernel: %s\n" 18031d68e7bSArnaldo Carvalho de Melo "Tools: %s\n\n" 18131d68e7bSArnaldo Carvalho de Melo "Not all samples will be on the annotation output.\n\n" 18231d68e7bSArnaldo Carvalho de Melo "Please report to linux-kernel@vger.kernel.org\n", 18331d68e7bSArnaldo Carvalho de Melo ip, map->dso->long_name, dso__symtab_origin(map->dso), 18431d68e7bSArnaldo Carvalho de Melo map->start, map->end, sym->start, sym->end, 18531d68e7bSArnaldo Carvalho de Melo sym->binding == STB_GLOBAL ? 'g' : 18631d68e7bSArnaldo Carvalho de Melo sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, 18731d68e7bSArnaldo Carvalho de Melo err ? "[unknown]" : uts.machine, 18831d68e7bSArnaldo Carvalho de Melo err ? "[unknown]" : uts.release, perf_version_string); 18931d68e7bSArnaldo Carvalho de Melo if (use_browser <= 0) 19031d68e7bSArnaldo Carvalho de Melo sleep(5); 19131d68e7bSArnaldo Carvalho de Melo 19231d68e7bSArnaldo Carvalho de Melo map->erange_warned = true; 19331d68e7bSArnaldo Carvalho de Melo } 19431d68e7bSArnaldo Carvalho de Melo 1951758af10SArnaldo Carvalho de Melo static void perf_top__record_precise_ip(struct perf_top *top, 1961758af10SArnaldo Carvalho de Melo struct hist_entry *he, 197bab89f6aSTaeung Song struct perf_sample *sample, 19832dcd021SJiri Olsa struct evsel *evsel, u64 ip) 199923c42c1SMike Galbraith { 200ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 201beefb8d0SNamhyung Kim struct symbol *sym = he->ms.sym; 20248c65bdaSNamhyung Kim int err = 0; 203ce6f4fabSArnaldo Carvalho de Melo 204beefb8d0SNamhyung Kim if (sym == NULL || (use_browser == 0 && 205beefb8d0SNamhyung Kim (top->sym_filter_entry == NULL || 206beefb8d0SNamhyung Kim top->sym_filter_entry->ms.sym != sym))) 207923c42c1SMike Galbraith return; 208923c42c1SMike Galbraith 209ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 210ce6f4fabSArnaldo Carvalho de Melo 211ce6f4fabSArnaldo Carvalho de Melo if (pthread_mutex_trylock(¬es->lock)) 212923c42c1SMike Galbraith return; 213923c42c1SMike Galbraith 214e345f3bdSArnaldo Carvalho de Melo err = hist_entry__inc_addr_samples(he, sample, evsel, ip); 215923c42c1SMike Galbraith 216ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 21731d68e7bSArnaldo Carvalho de Melo 218151ee834SNamhyung Kim if (unlikely(err)) { 2197c50391fSNamhyung Kim /* 2207c50391fSNamhyung Kim * This function is now called with he->hists->lock held. 2217c50391fSNamhyung Kim * Release it before going to sleep. 2227c50391fSNamhyung Kim */ 223*8e03bb88SIan Rogers mutex_unlock(&he->hists->lock); 2247c50391fSNamhyung Kim 22531d68e7bSArnaldo Carvalho de Melo if (err == -ERANGE && !he->ms.map->erange_warned) 22631d68e7bSArnaldo Carvalho de Melo ui__warn_map_erange(he->ms.map, sym, ip); 227b66d8c0cSArnaldo Carvalho de Melo else if (err == -ENOMEM) { 228b66d8c0cSArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 229b66d8c0cSArnaldo Carvalho de Melo sym->name); 230b66d8c0cSArnaldo Carvalho de Melo sleep(1); 231b66d8c0cSArnaldo Carvalho de Melo } 2327c50391fSNamhyung Kim 233*8e03bb88SIan Rogers mutex_lock(&he->hists->lock); 234923c42c1SMike Galbraith } 235151ee834SNamhyung Kim } 236923c42c1SMike Galbraith 2371758af10SArnaldo Carvalho de Melo static void perf_top__show_details(struct perf_top *top) 238923c42c1SMike Galbraith { 2391758af10SArnaldo Carvalho de Melo struct hist_entry *he = top->sym_filter_entry; 24032dcd021SJiri Olsa struct evsel *evsel; 241ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 242923c42c1SMike Galbraith struct symbol *symbol; 24336532461SArnaldo Carvalho de Melo int more; 244923c42c1SMike Galbraith 245ab81f3fdSArnaldo Carvalho de Melo if (!he) 246923c42c1SMike Galbraith return; 247923c42c1SMike Galbraith 248111442cfSLeo Yan evsel = hists_to_evsel(he->hists); 249111442cfSLeo Yan 250ab81f3fdSArnaldo Carvalho de Melo symbol = he->ms.sym; 251ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(symbol); 252ce6f4fabSArnaldo Carvalho de Melo 253ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 254ce6f4fabSArnaldo Carvalho de Melo 255f681d593SJiri Olsa symbol__calc_percent(symbol, evsel); 256f681d593SJiri Olsa 257ce6f4fabSArnaldo Carvalho de Melo if (notes->src == NULL) 258ce6f4fabSArnaldo Carvalho de Melo goto out_unlock; 259923c42c1SMike Galbraith 2608ab2e96dSArnaldo Carvalho de Melo printf("Showing %s for %s\n", evsel__name(top->sym_evsel), symbol->name); 261982d410bSArnaldo Carvalho de Melo printf(" Events Pcnt (>=%d%%)\n", top->annotation_opts.min_pcnt); 262923c42c1SMike Galbraith 26329754894SArnaldo Carvalho de Melo more = symbol__annotate_printf(&he->ms, top->sym_evsel, &top->annotation_opts); 2645d484f99SArnaldo Carvalho de Melo 2655d484f99SArnaldo Carvalho de Melo if (top->evlist->enabled) { 2661758af10SArnaldo Carvalho de Melo if (top->zero) 26738fe0e01SJiri Olsa symbol__annotate_zero_histogram(symbol, top->sym_evsel->core.idx); 26836532461SArnaldo Carvalho de Melo else 26938fe0e01SJiri Olsa symbol__annotate_decay_histogram(symbol, top->sym_evsel->core.idx); 2705d484f99SArnaldo Carvalho de Melo } 27136532461SArnaldo Carvalho de Melo if (more != 0) 272923c42c1SMike Galbraith printf("%d lines not displayed, maybe increase display entries [e]\n", more); 273ce6f4fabSArnaldo Carvalho de Melo out_unlock: 274ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 275923c42c1SMike Galbraith } 27686470930SIngo Molnar 277ea4385f8SNamhyung Kim static void perf_top__resort_hists(struct perf_top *t) 27840d81772SArnaldo Carvalho de Melo { 279ea4385f8SNamhyung Kim struct evlist *evlist = t->evlist; 28040d81772SArnaldo Carvalho de Melo struct evsel *pos; 28140d81772SArnaldo Carvalho de Melo 28240d81772SArnaldo Carvalho de Melo evlist__for_each_entry(evlist, pos) { 28340d81772SArnaldo Carvalho de Melo struct hists *hists = evsel__hists(pos); 28440d81772SArnaldo Carvalho de Melo 285be5863b7SNamhyung Kim /* 286be5863b7SNamhyung Kim * unlink existing entries so that they can be linked 287be5863b7SNamhyung Kim * in a correct order in hists__match() below. 288be5863b7SNamhyung Kim */ 289be5863b7SNamhyung Kim hists__unlink(hists); 290be5863b7SNamhyung Kim 291ea4385f8SNamhyung Kim if (evlist->enabled) { 292ea4385f8SNamhyung Kim if (t->zero) { 293ea4385f8SNamhyung Kim hists__delete_entries(hists); 294ea4385f8SNamhyung Kim } else { 295ea4385f8SNamhyung Kim hists__decay_entries(hists, t->hide_user_symbols, 296ea4385f8SNamhyung Kim t->hide_kernel_symbols); 297ea4385f8SNamhyung Kim } 298ea4385f8SNamhyung Kim } 299ea4385f8SNamhyung Kim 30040d81772SArnaldo Carvalho de Melo hists__collapse_resort(hists, NULL); 30140d81772SArnaldo Carvalho de Melo 30240d81772SArnaldo Carvalho de Melo /* Non-group events are considered as leader */ 303c754c382SArnaldo Carvalho de Melo if (symbol_conf.event_group && !evsel__is_group_leader(pos)) { 304fba7c866SJiri Olsa struct hists *leader_hists = evsel__hists(evsel__leader(pos)); 30540d81772SArnaldo Carvalho de Melo 30640d81772SArnaldo Carvalho de Melo hists__match(leader_hists, hists); 30740d81772SArnaldo Carvalho de Melo hists__link(leader_hists, hists); 30840d81772SArnaldo Carvalho de Melo } 30940d81772SArnaldo Carvalho de Melo } 31040d81772SArnaldo Carvalho de Melo 31140d81772SArnaldo Carvalho de Melo evlist__for_each_entry(evlist, pos) { 31210c513f7SArnaldo Carvalho de Melo evsel__output_resort(pos, NULL); 31340d81772SArnaldo Carvalho de Melo } 31440d81772SArnaldo Carvalho de Melo } 31540d81772SArnaldo Carvalho de Melo 3161758af10SArnaldo Carvalho de Melo static void perf_top__print_sym_table(struct perf_top *top) 31786470930SIngo Molnar { 3188c3e10ebSArnaldo Carvalho de Melo char bf[160]; 3198c3e10ebSArnaldo Carvalho de Melo int printed = 0; 3201758af10SArnaldo Carvalho de Melo const int win_width = top->winsize.ws_col - 1; 32132dcd021SJiri Olsa struct evsel *evsel = top->sym_evsel; 322452ce03bSJiri Olsa struct hists *hists = evsel__hists(evsel); 32386470930SIngo Molnar 32486470930SIngo Molnar puts(CONSOLE_CLEAR); 32586470930SIngo Molnar 3261758af10SArnaldo Carvalho de Melo perf_top__header_snprintf(top, bf, sizeof(bf)); 3278c3e10ebSArnaldo Carvalho de Melo printf("%s\n", bf); 32886470930SIngo Molnar 3291a105f74SArnaldo Carvalho de Melo printf("%-*.*s\n", win_width, win_width, graph_dotted_line); 33086470930SIngo Molnar 331a1ff5b05SKan Liang if (!top->record_opts.overwrite && 332bf8f8587SNamhyung Kim (top->evlist->stats.nr_lost_warned != 333bf8f8587SNamhyung Kim top->evlist->stats.nr_events[PERF_RECORD_LOST])) { 334bf8f8587SNamhyung Kim top->evlist->stats.nr_lost_warned = 335bf8f8587SNamhyung Kim top->evlist->stats.nr_events[PERF_RECORD_LOST]; 3367b27509fSArnaldo Carvalho de Melo color_fprintf(stdout, PERF_COLOR_RED, 3377b27509fSArnaldo Carvalho de Melo "WARNING: LOST %d chunks, Check IO/CPU overload", 338bf8f8587SNamhyung Kim top->evlist->stats.nr_lost_warned); 339ab81f3fdSArnaldo Carvalho de Melo ++printed; 34093fc64f1SArnaldo Carvalho de Melo } 34193fc64f1SArnaldo Carvalho de Melo 3421758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 3431758af10SArnaldo Carvalho de Melo perf_top__show_details(top); 344923c42c1SMike Galbraith return; 345923c42c1SMike Galbraith } 346923c42c1SMike Galbraith 347ea4385f8SNamhyung Kim perf_top__resort_hists(top); 348701937bdSNamhyung Kim 3494ea062edSArnaldo Carvalho de Melo hists__output_recalc_col_len(hists, top->print_entries - printed); 3501a105f74SArnaldo Carvalho de Melo putchar('\n'); 3514ea062edSArnaldo Carvalho de Melo hists__fprintf(hists, false, top->print_entries - printed, win_width, 352e9de7e2fSArnaldo Carvalho de Melo top->min_percent, stdout, !symbol_conf.use_callchain); 35386470930SIngo Molnar } 35486470930SIngo Molnar 355923c42c1SMike Galbraith static void prompt_integer(int *target, const char *msg) 356923c42c1SMike Galbraith { 357923c42c1SMike Galbraith char *buf = malloc(0), *p; 358923c42c1SMike Galbraith size_t dummy = 0; 359923c42c1SMike Galbraith int tmp; 360923c42c1SMike Galbraith 361923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 362923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 363923c42c1SMike Galbraith return; 364923c42c1SMike Galbraith 365923c42c1SMike Galbraith p = strchr(buf, '\n'); 366923c42c1SMike Galbraith if (p) 367923c42c1SMike Galbraith *p = 0; 368923c42c1SMike Galbraith 369923c42c1SMike Galbraith p = buf; 370923c42c1SMike Galbraith while(*p) { 371923c42c1SMike Galbraith if (!isdigit(*p)) 372923c42c1SMike Galbraith goto out_free; 373923c42c1SMike Galbraith p++; 374923c42c1SMike Galbraith } 375923c42c1SMike Galbraith tmp = strtoul(buf, NULL, 10); 376923c42c1SMike Galbraith *target = tmp; 377923c42c1SMike Galbraith out_free: 378923c42c1SMike Galbraith free(buf); 379923c42c1SMike Galbraith } 380923c42c1SMike Galbraith 381923c42c1SMike Galbraith static void prompt_percent(int *target, const char *msg) 382923c42c1SMike Galbraith { 383923c42c1SMike Galbraith int tmp = 0; 384923c42c1SMike Galbraith 385923c42c1SMike Galbraith prompt_integer(&tmp, msg); 386923c42c1SMike Galbraith if (tmp >= 0 && tmp <= 100) 387923c42c1SMike Galbraith *target = tmp; 388923c42c1SMike Galbraith } 389923c42c1SMike Galbraith 3901758af10SArnaldo Carvalho de Melo static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) 391923c42c1SMike Galbraith { 392923c42c1SMike Galbraith char *buf = malloc(0), *p; 3931758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; 3944ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(top->sym_evsel); 395ab81f3fdSArnaldo Carvalho de Melo struct rb_node *next; 396923c42c1SMike Galbraith size_t dummy = 0; 397923c42c1SMike Galbraith 398923c42c1SMike Galbraith /* zero counters of active symbol */ 399923c42c1SMike Galbraith if (syme) { 400923c42c1SMike Galbraith __zero_source_counters(syme); 4011758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 402923c42c1SMike Galbraith } 403923c42c1SMike Galbraith 404923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 405923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 406923c42c1SMike Galbraith goto out_free; 407923c42c1SMike Galbraith 408923c42c1SMike Galbraith p = strchr(buf, '\n'); 409923c42c1SMike Galbraith if (p) 410923c42c1SMike Galbraith *p = 0; 411923c42c1SMike Galbraith 4122eb3d689SDavidlohr Bueso next = rb_first_cached(&hists->entries); 413ab81f3fdSArnaldo Carvalho de Melo while (next) { 414ab81f3fdSArnaldo Carvalho de Melo n = rb_entry(next, struct hist_entry, rb_node); 415ab81f3fdSArnaldo Carvalho de Melo if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { 416ab81f3fdSArnaldo Carvalho de Melo found = n; 417923c42c1SMike Galbraith break; 418923c42c1SMike Galbraith } 419ab81f3fdSArnaldo Carvalho de Melo next = rb_next(&n->rb_node); 420923c42c1SMike Galbraith } 421923c42c1SMike Galbraith 422923c42c1SMike Galbraith if (!found) { 42366aeb6d5SKirill Smelkov fprintf(stderr, "Sorry, %s is not active.\n", buf); 424923c42c1SMike Galbraith sleep(1); 425923c42c1SMike Galbraith } else 4261758af10SArnaldo Carvalho de Melo perf_top__parse_source(top, found); 427923c42c1SMike Galbraith 428923c42c1SMike Galbraith out_free: 429923c42c1SMike Galbraith free(buf); 430923c42c1SMike Galbraith } 431923c42c1SMike Galbraith 4321758af10SArnaldo Carvalho de Melo static void perf_top__print_mapped_keys(struct perf_top *top) 433923c42c1SMike Galbraith { 434091bd2e9SMike Galbraith char *name = NULL; 435091bd2e9SMike Galbraith 4361758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 4371758af10SArnaldo Carvalho de Melo struct symbol *sym = top->sym_filter_entry->ms.sym; 438091bd2e9SMike Galbraith name = sym->name; 439091bd2e9SMike Galbraith } 440091bd2e9SMike Galbraith 441091bd2e9SMike Galbraith fprintf(stdout, "\nMapped keys:\n"); 4421758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); 4431758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); 444091bd2e9SMike Galbraith 4456484d2f9SJiri Olsa if (top->evlist->core.nr_entries > 1) 4468ab2e96dSArnaldo Carvalho de Melo fprintf(stdout, "\t[E] active event counter. \t(%s)\n", evsel__name(top->sym_evsel)); 447091bd2e9SMike Galbraith 4481758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); 449091bd2e9SMike Galbraith 450982d410bSArnaldo Carvalho de Melo fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->annotation_opts.min_pcnt); 451091bd2e9SMike Galbraith fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); 452091bd2e9SMike Galbraith fprintf(stdout, "\t[S] stop annotation.\n"); 453091bd2e9SMike Galbraith 4548ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4558fce3743SSihyeon Jang "\t[K] hide kernel symbols. \t(%s)\n", 4561758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols ? "yes" : "no"); 4578ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4588ffcda17SArnaldo Carvalho de Melo "\t[U] hide user symbols. \t(%s)\n", 4591758af10SArnaldo Carvalho de Melo top->hide_user_symbols ? "yes" : "no"); 4601758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); 461091bd2e9SMike Galbraith fprintf(stdout, "\t[qQ] quit.\n"); 462091bd2e9SMike Galbraith } 463091bd2e9SMike Galbraith 4641758af10SArnaldo Carvalho de Melo static int perf_top__key_mapped(struct perf_top *top, int c) 465091bd2e9SMike Galbraith { 466091bd2e9SMike Galbraith switch (c) { 467091bd2e9SMike Galbraith case 'd': 468091bd2e9SMike Galbraith case 'e': 469091bd2e9SMike Galbraith case 'f': 470091bd2e9SMike Galbraith case 'z': 471091bd2e9SMike Galbraith case 'q': 472091bd2e9SMike Galbraith case 'Q': 4738ffcda17SArnaldo Carvalho de Melo case 'K': 4748ffcda17SArnaldo Carvalho de Melo case 'U': 4756cff0e8dSKirill Smelkov case 'F': 4766cff0e8dSKirill Smelkov case 's': 4776cff0e8dSKirill Smelkov case 'S': 478091bd2e9SMike Galbraith return 1; 479091bd2e9SMike Galbraith case 'E': 4806484d2f9SJiri Olsa return top->evlist->core.nr_entries > 1 ? 1 : 0; 48183a0944fSIngo Molnar default: 48283a0944fSIngo Molnar break; 483091bd2e9SMike Galbraith } 484091bd2e9SMike Galbraith 485091bd2e9SMike Galbraith return 0; 486923c42c1SMike Galbraith } 487923c42c1SMike Galbraith 48811859e82SArnaldo Carvalho de Melo static bool perf_top__handle_keypress(struct perf_top *top, int c) 489923c42c1SMike Galbraith { 49011859e82SArnaldo Carvalho de Melo bool ret = true; 49111859e82SArnaldo Carvalho de Melo 4921758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) { 493091bd2e9SMike Galbraith struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 4943969cc09SJiri Olsa struct termios save; 495091bd2e9SMike Galbraith 4961758af10SArnaldo Carvalho de Melo perf_top__print_mapped_keys(top); 497091bd2e9SMike Galbraith fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); 498091bd2e9SMike Galbraith fflush(stdout); 499091bd2e9SMike Galbraith 5003969cc09SJiri Olsa set_term_quiet_input(&save); 501091bd2e9SMike Galbraith 502091bd2e9SMike Galbraith poll(&stdin_poll, 1, -1); 503091bd2e9SMike Galbraith c = getc(stdin); 504091bd2e9SMike Galbraith 505091bd2e9SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 5061758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) 50711859e82SArnaldo Carvalho de Melo return ret; 508091bd2e9SMike Galbraith } 509091bd2e9SMike Galbraith 510923c42c1SMike Galbraith switch (c) { 511923c42c1SMike Galbraith case 'd': 5121758af10SArnaldo Carvalho de Melo prompt_integer(&top->delay_secs, "Enter display delay"); 5131758af10SArnaldo Carvalho de Melo if (top->delay_secs < 1) 5141758af10SArnaldo Carvalho de Melo top->delay_secs = 1; 515923c42c1SMike Galbraith break; 516923c42c1SMike Galbraith case 'e': 5171758af10SArnaldo Carvalho de Melo prompt_integer(&top->print_entries, "Enter display entries (lines)"); 5181758af10SArnaldo Carvalho de Melo if (top->print_entries == 0) { 519b135e5eeSJiri Olsa perf_top__resize(top); 520244a1086SJiri Olsa signal(SIGWINCH, winch_sig); 521509605dbSStephane Eranian } else { 5223b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, SIG_DFL); 523509605dbSStephane Eranian } 524923c42c1SMike Galbraith break; 525923c42c1SMike Galbraith case 'E': 5266484d2f9SJiri Olsa if (top->evlist->core.nr_entries > 1) { 527ce2d17caSAkihiro Nagai /* Select 0 as the default event: */ 528ce2d17caSAkihiro Nagai int counter = 0; 529ce2d17caSAkihiro Nagai 530923c42c1SMike Galbraith fprintf(stderr, "\nAvailable events:"); 53169aad6f1SArnaldo Carvalho de Melo 532e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(top->evlist, top->sym_evsel) 53338fe0e01SJiri Olsa fprintf(stderr, "\n\t%d %s", top->sym_evsel->core.idx, evsel__name(top->sym_evsel)); 534923c42c1SMike Galbraith 535ec52d976SArnaldo Carvalho de Melo prompt_integer(&counter, "Enter details event counter"); 536923c42c1SMike Galbraith 5376484d2f9SJiri Olsa if (counter >= top->evlist->core.nr_entries) { 538515dbe48SJiri Olsa top->sym_evsel = evlist__first(top->evlist); 5398ab2e96dSArnaldo Carvalho de Melo fprintf(stderr, "Sorry, no such event, using %s.\n", evsel__name(top->sym_evsel)); 540923c42c1SMike Galbraith sleep(1); 54169aad6f1SArnaldo Carvalho de Melo break; 542923c42c1SMike Galbraith } 543e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(top->evlist, top->sym_evsel) 54438fe0e01SJiri Olsa if (top->sym_evsel->core.idx == counter) 54569aad6f1SArnaldo Carvalho de Melo break; 546ec52d976SArnaldo Carvalho de Melo } else 547515dbe48SJiri Olsa top->sym_evsel = evlist__first(top->evlist); 548923c42c1SMike Galbraith break; 549923c42c1SMike Galbraith case 'f': 5501758af10SArnaldo Carvalho de Melo prompt_integer(&top->count_filter, "Enter display event count filter"); 551923c42c1SMike Galbraith break; 552923c42c1SMike Galbraith case 'F': 553982d410bSArnaldo Carvalho de Melo prompt_percent(&top->annotation_opts.min_pcnt, 5541758af10SArnaldo Carvalho de Melo "Enter details display event filter (percent)"); 555923c42c1SMike Galbraith break; 5568ffcda17SArnaldo Carvalho de Melo case 'K': 5571758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols = !top->hide_kernel_symbols; 5588ffcda17SArnaldo Carvalho de Melo break; 559923c42c1SMike Galbraith case 'q': 560923c42c1SMike Galbraith case 'Q': 561923c42c1SMike Galbraith printf("exiting.\n"); 5621758af10SArnaldo Carvalho de Melo if (top->dump_symtab) 5631758af10SArnaldo Carvalho de Melo perf_session__fprintf_dsos(top->session, stderr); 56411859e82SArnaldo Carvalho de Melo ret = false; 56511859e82SArnaldo Carvalho de Melo break; 566923c42c1SMike Galbraith case 's': 5671758af10SArnaldo Carvalho de Melo perf_top__prompt_symbol(top, "Enter details symbol"); 568923c42c1SMike Galbraith break; 569923c42c1SMike Galbraith case 'S': 5701758af10SArnaldo Carvalho de Melo if (!top->sym_filter_entry) 571923c42c1SMike Galbraith break; 572923c42c1SMike Galbraith else { 5731758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry; 574923c42c1SMike Galbraith 5751758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 576923c42c1SMike Galbraith __zero_source_counters(syme); 577923c42c1SMike Galbraith } 578923c42c1SMike Galbraith break; 5798ffcda17SArnaldo Carvalho de Melo case 'U': 5801758af10SArnaldo Carvalho de Melo top->hide_user_symbols = !top->hide_user_symbols; 5818ffcda17SArnaldo Carvalho de Melo break; 582923c42c1SMike Galbraith case 'z': 5831758af10SArnaldo Carvalho de Melo top->zero = !top->zero; 584923c42c1SMike Galbraith break; 58583a0944fSIngo Molnar default: 58683a0944fSIngo Molnar break; 587923c42c1SMike Galbraith } 58811859e82SArnaldo Carvalho de Melo 58911859e82SArnaldo Carvalho de Melo return ret; 590923c42c1SMike Galbraith } 591923c42c1SMike Galbraith 592ab81f3fdSArnaldo Carvalho de Melo static void perf_top__sort_new_samples(void *arg) 593ab81f3fdSArnaldo Carvalho de Melo { 594ab81f3fdSArnaldo Carvalho de Melo struct perf_top *t = arg; 5954ea062edSArnaldo Carvalho de Melo 596ab81f3fdSArnaldo Carvalho de Melo if (t->evlist->selected != NULL) 597ab81f3fdSArnaldo Carvalho de Melo t->sym_evsel = t->evlist->selected; 598ab81f3fdSArnaldo Carvalho de Melo 599ea4385f8SNamhyung Kim perf_top__resort_hists(t); 600254de74cSJiri Olsa 601d8590430SJiri Olsa if (t->lost || t->drop) 602254de74cSJiri Olsa pr_warning("Too slow to read ring buffer (change period (-c/-F) or limit CPUs (-C)\n"); 603701937bdSNamhyung Kim } 604701937bdSNamhyung Kim 605c94cef4bSJiri Olsa static void stop_top(void) 606c94cef4bSJiri Olsa { 607c94cef4bSJiri Olsa session_done = 1; 608c94cef4bSJiri Olsa done = 1; 609c94cef4bSJiri Olsa } 610c94cef4bSJiri Olsa 6111758af10SArnaldo Carvalho de Melo static void *display_thread_tui(void *arg) 612c0443df1SArnaldo Carvalho de Melo { 61332dcd021SJiri Olsa struct evsel *pos; 6141758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 615ab81f3fdSArnaldo Carvalho de Melo const char *help = "For a higher level overview, try: perf top --sort comm,dso"; 6169783adf7SNamhyung Kim struct hist_browser_timer hbt = { 6179783adf7SNamhyung Kim .timer = perf_top__sort_new_samples, 6189783adf7SNamhyung Kim .arg = top, 6199783adf7SNamhyung Kim .refresh = top->delay_secs, 6209783adf7SNamhyung Kim }; 6212605af0fSJin Yao int ret; 622ab81f3fdSArnaldo Carvalho de Melo 623868a8329SKrister Johansen /* In order to read symbols from other namespaces perf to needs to call 624868a8329SKrister Johansen * setns(2). This isn't permitted if the struct_fs has multiple users. 625868a8329SKrister Johansen * unshare(2) the fs so that we may continue to setns into namespaces 626868a8329SKrister Johansen * that we're observing. 627868a8329SKrister Johansen */ 628868a8329SKrister Johansen unshare(CLONE_FS); 629868a8329SKrister Johansen 6301205a271SArnaldo Carvalho de Melo prctl(PR_SET_NAME, "perf-top-UI", 0, 0, 0); 6311205a271SArnaldo Carvalho de Melo 6322605af0fSJin Yao repeat: 6331758af10SArnaldo Carvalho de Melo perf_top__sort_new_samples(top); 6340d37aa34SArnaldo Carvalho de Melo 6350d37aa34SArnaldo Carvalho de Melo /* 6360d37aa34SArnaldo Carvalho de Melo * Initialize the uid_filter_str, in the future the TUI will allow 637adba1634SIngo Molnar * Zooming in/out UIDs. For now just use whatever the user passed 6380d37aa34SArnaldo Carvalho de Melo * via --uid. 6390d37aa34SArnaldo Carvalho de Melo */ 640e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(top->evlist, pos) { 6414ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(pos); 6424ea062edSArnaldo Carvalho de Melo hists->uid_filter_str = top->record_opts.target.uid_str; 6434ea062edSArnaldo Carvalho de Melo } 6440d37aa34SArnaldo Carvalho de Melo 645f4bd0b4aSArnaldo Carvalho de Melo ret = evlist__tui_browse_hists(top->evlist, help, &hbt, top->min_percent, 646f4bd0b4aSArnaldo Carvalho de Melo &top->session->header.env, !top->record_opts.overwrite, 647cd0cccbaSArnaldo Carvalho de Melo &top->annotation_opts); 6482605af0fSJin Yao if (ret == K_RELOAD) { 6492605af0fSJin Yao top->zero = true; 6502605af0fSJin Yao goto repeat; 6512605af0fSJin Yao } else 652c94cef4bSJiri Olsa stop_top(); 6532605af0fSJin Yao 654c0443df1SArnaldo Carvalho de Melo return NULL; 655c0443df1SArnaldo Carvalho de Melo } 656c0443df1SArnaldo Carvalho de Melo 6574a1a9971SJiri Olsa static void display_sig(int sig __maybe_unused) 6584a1a9971SJiri Olsa { 659c94cef4bSJiri Olsa stop_top(); 6604a1a9971SJiri Olsa } 6614a1a9971SJiri Olsa 6624a1a9971SJiri Olsa static void display_setup_sig(void) 6634a1a9971SJiri Olsa { 66409f4d78aSArnaldo Carvalho de Melo signal(SIGSEGV, sighandler_dump_stack); 66509f4d78aSArnaldo Carvalho de Melo signal(SIGFPE, sighandler_dump_stack); 6664a1a9971SJiri Olsa signal(SIGINT, display_sig); 6674a1a9971SJiri Olsa signal(SIGQUIT, display_sig); 6684a1a9971SJiri Olsa signal(SIGTERM, display_sig); 6694a1a9971SJiri Olsa } 6704a1a9971SJiri Olsa 6711758af10SArnaldo Carvalho de Melo static void *display_thread(void *arg) 67286470930SIngo Molnar { 67386470930SIngo Molnar struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 6749398c484SJiri Olsa struct termios save; 6751758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 676923c42c1SMike Galbraith int delay_msecs, c; 67786470930SIngo Molnar 678868a8329SKrister Johansen /* In order to read symbols from other namespaces perf to needs to call 679868a8329SKrister Johansen * setns(2). This isn't permitted if the struct_fs has multiple users. 680868a8329SKrister Johansen * unshare(2) the fs so that we may continue to setns into namespaces 681868a8329SKrister Johansen * that we're observing. 682868a8329SKrister Johansen */ 683868a8329SKrister Johansen unshare(CLONE_FS); 684868a8329SKrister Johansen 6851205a271SArnaldo Carvalho de Melo prctl(PR_SET_NAME, "perf-top-UI", 0, 0, 0); 6861205a271SArnaldo Carvalho de Melo 6874a1a9971SJiri Olsa display_setup_sig(); 6883af6e338SArnaldo Carvalho de Melo pthread__unblock_sigwinch(); 689923c42c1SMike Galbraith repeat: 690b9c4b0f4SArnaldo Carvalho de Melo delay_msecs = top->delay_secs * MSEC_PER_SEC; 6919398c484SJiri Olsa set_term_quiet_input(&save); 692923c42c1SMike Galbraith /* trash return*/ 69329b4f5f1STommi Rantala clearerr(stdin); 69429b4f5f1STommi Rantala if (poll(&stdin_poll, 1, 0) > 0) 695923c42c1SMike Galbraith getc(stdin); 69686470930SIngo Molnar 69711859e82SArnaldo Carvalho de Melo while (!done) { 6981758af10SArnaldo Carvalho de Melo perf_top__print_sym_table(top); 6993af6e338SArnaldo Carvalho de Melo /* 7003af6e338SArnaldo Carvalho de Melo * Either timeout expired or we got an EINTR due to SIGWINCH, 7013af6e338SArnaldo Carvalho de Melo * refresh screen in both cases. 7023af6e338SArnaldo Carvalho de Melo */ 7033af6e338SArnaldo Carvalho de Melo switch (poll(&stdin_poll, 1, delay_msecs)) { 7043af6e338SArnaldo Carvalho de Melo case 0: 7053af6e338SArnaldo Carvalho de Melo continue; 7063af6e338SArnaldo Carvalho de Melo case -1: 7073af6e338SArnaldo Carvalho de Melo if (errno == EINTR) 7083af6e338SArnaldo Carvalho de Melo continue; 7097b0214b7SArnaldo Carvalho de Melo __fallthrough; 7103af6e338SArnaldo Carvalho de Melo default: 711923c42c1SMike Galbraith c = getc(stdin); 712923c42c1SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 713923c42c1SMike Galbraith 71411859e82SArnaldo Carvalho de Melo if (perf_top__handle_keypress(top, c)) 715923c42c1SMike Galbraith goto repeat; 716c94cef4bSJiri Olsa stop_top(); 71711859e82SArnaldo Carvalho de Melo } 71811859e82SArnaldo Carvalho de Melo } 71986470930SIngo Molnar 7204a1a9971SJiri Olsa tcsetattr(0, TCSAFLUSH, &save); 72186470930SIngo Molnar return NULL; 72286470930SIngo Molnar } 72386470930SIngo Molnar 7247c50391fSNamhyung Kim static int hist_iter__top_callback(struct hist_entry_iter *iter, 7257c50391fSNamhyung Kim struct addr_location *al, bool single, 7267c50391fSNamhyung Kim void *arg) 7277c50391fSNamhyung Kim { 7287c50391fSNamhyung Kim struct perf_top *top = arg; 7297c50391fSNamhyung Kim struct hist_entry *he = iter->he; 73032dcd021SJiri Olsa struct evsel *evsel = iter->evsel; 7317c50391fSNamhyung Kim 7322e0453afSJiri Olsa if (perf_hpp_list.sym && single) 733e345f3bdSArnaldo Carvalho de Melo perf_top__record_precise_ip(top, he, iter->sample, evsel, al->addr); 7347c50391fSNamhyung Kim 735a18b027eSAndi Kleen hist__account_cycles(iter->sample->branch_stack, al, iter->sample, 7367841f40aSJin Yao !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY), 7377841f40aSJin Yao NULL); 7387c50391fSNamhyung Kim return 0; 7397c50391fSNamhyung Kim } 7407c50391fSNamhyung Kim 7411758af10SArnaldo Carvalho de Melo static void perf_event__process_sample(struct perf_tool *tool, 7421758af10SArnaldo Carvalho de Melo const union perf_event *event, 74332dcd021SJiri Olsa struct evsel *evsel, 7448d50e5b4SArnaldo Carvalho de Melo struct perf_sample *sample, 745743eb868SArnaldo Carvalho de Melo struct machine *machine) 74686470930SIngo Molnar { 7471758af10SArnaldo Carvalho de Melo struct perf_top *top = container_of(tool, struct perf_top, tool); 7481ed091c4SArnaldo Carvalho de Melo struct addr_location al; 7495b2bb75aSArnaldo Carvalho de Melo 75023346f21SArnaldo Carvalho de Melo if (!machine && perf_guest) { 7516b118e92SDavid Ahern static struct intlist *seen; 7526b118e92SDavid Ahern 7536b118e92SDavid Ahern if (!seen) 754ffe0fb76SArnaldo Carvalho de Melo seen = intlist__new(NULL); 7556b118e92SDavid Ahern 756ef89325fSAdrian Hunter if (!intlist__has_entry(seen, sample->pid)) { 757a1645ce1SZhang, Yanmin pr_err("Can't find guest [%d]'s kernel information\n", 758ef89325fSAdrian Hunter sample->pid); 759ef89325fSAdrian Hunter intlist__add(seen, sample->pid); 7606b118e92SDavid Ahern } 761a1645ce1SZhang, Yanmin return; 762a1645ce1SZhang, Yanmin } 763a1645ce1SZhang, Yanmin 7640c095715SJoerg Roedel if (!machine) { 76511859e82SArnaldo Carvalho de Melo pr_err("%u unprocessable samples recorded.\r", 76675be989aSArnaldo Carvalho de Melo top->session->evlist->stats.nr_unprocessable_samples++); 7670c095715SJoerg Roedel return; 7680c095715SJoerg Roedel } 7690c095715SJoerg Roedel 7708115d60cSArnaldo Carvalho de Melo if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) 7711758af10SArnaldo Carvalho de Melo top->exact_samples++; 7721676b8a0SPeter Zijlstra 773bb3eb566SArnaldo Carvalho de Melo if (machine__resolve(machine, &al, sample) < 0) 7741ed091c4SArnaldo Carvalho de Melo return; 77586470930SIngo Molnar 77613e0c844SKan Liang if (top->stitch_lbr) 77713e0c844SKan Liang al.thread->lbr_stitch_enable = true; 77813e0c844SKan Liang 779e77a0742SArnaldo Carvalho de Melo if (!machine->kptr_restrict_warned && 7805f6f5580SArnaldo Carvalho de Melo symbol_conf.kptr_restrict && 7815f6f5580SArnaldo Carvalho de Melo al.cpumode == PERF_RECORD_MISC_KERNEL) { 78278e1bc25SArnaldo Carvalho de Melo if (!evlist__exclude_kernel(top->session->evlist)) { 7835f6f5580SArnaldo Carvalho de Melo ui__warning( 7845f6f5580SArnaldo Carvalho de Melo "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" 785d06e5fadSIgor Lubashev "Check /proc/sys/kernel/kptr_restrict and /proc/sys/kernel/perf_event_paranoid.\n\n" 7865f6f5580SArnaldo Carvalho de Melo "Kernel%s samples will not be resolved.\n", 787e94b861aSArnaldo Carvalho de Melo al.map && map__has_symbols(al.map) ? 7885f6f5580SArnaldo Carvalho de Melo " modules" : ""); 7895f6f5580SArnaldo Carvalho de Melo if (use_browser <= 0) 7905f6f5580SArnaldo Carvalho de Melo sleep(5); 791b89a5124SArnaldo Carvalho de Melo } 792e77a0742SArnaldo Carvalho de Melo machine->kptr_restrict_warned = true; 7935f6f5580SArnaldo Carvalho de Melo } 7945f6f5580SArnaldo Carvalho de Melo 79568766bfaSArnaldo Carvalho de Melo if (al.sym == NULL && al.map != NULL) { 796e4a338d0SArnaldo Carvalho de Melo const char *msg = "Kernel samples will not be resolved.\n"; 79772b8fa17SArnaldo Carvalho de Melo /* 79872b8fa17SArnaldo Carvalho de Melo * As we do lazy loading of symtabs we only will know if the 79972b8fa17SArnaldo Carvalho de Melo * specified vmlinux file is invalid when we actually have a 80072b8fa17SArnaldo Carvalho de Melo * hit in kernel space and then try to load it. So if we get 80172b8fa17SArnaldo Carvalho de Melo * here and there are _no_ symbols in the DSO backing the 80272b8fa17SArnaldo Carvalho de Melo * kernel map, bail out. 80372b8fa17SArnaldo Carvalho de Melo * 80472b8fa17SArnaldo Carvalho de Melo * We may never get here, for instance, if we use -K/ 80572b8fa17SArnaldo Carvalho de Melo * --hide-kernel-symbols, even if the user specifies an 80672b8fa17SArnaldo Carvalho de Melo * invalid --vmlinux ;-) 80772b8fa17SArnaldo Carvalho de Melo */ 808e77a0742SArnaldo Carvalho de Melo if (!machine->kptr_restrict_warned && !top->vmlinux_warned && 809e94b861aSArnaldo Carvalho de Melo __map__is_kernel(al.map) && map__has_symbols(al.map)) { 810e4a338d0SArnaldo Carvalho de Melo if (symbol_conf.vmlinux_name) { 81118425f13SArnaldo Carvalho de Melo char serr[256]; 81218425f13SArnaldo Carvalho de Melo dso__strerror_load(al.map->dso, serr, sizeof(serr)); 81318425f13SArnaldo Carvalho de Melo ui__warning("The %s file can't be used: %s\n%s", 81418425f13SArnaldo Carvalho de Melo symbol_conf.vmlinux_name, serr, msg); 815e4a338d0SArnaldo Carvalho de Melo } else { 816e4a338d0SArnaldo Carvalho de Melo ui__warning("A vmlinux file was not found.\n%s", 817e4a338d0SArnaldo Carvalho de Melo msg); 818e4a338d0SArnaldo Carvalho de Melo } 819e4a338d0SArnaldo Carvalho de Melo 820e4a338d0SArnaldo Carvalho de Melo if (use_browser <= 0) 821e4a338d0SArnaldo Carvalho de Melo sleep(5); 8221758af10SArnaldo Carvalho de Melo top->vmlinux_warned = true; 82372b8fa17SArnaldo Carvalho de Melo } 82472b8fa17SArnaldo Carvalho de Melo } 82572b8fa17SArnaldo Carvalho de Melo 826b55cc4edSArnaldo Carvalho de Melo if (al.sym == NULL || !al.sym->idle) { 8274ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(evsel); 8287c50391fSNamhyung Kim struct hist_entry_iter iter = { 829063bd936SNamhyung Kim .evsel = evsel, 830063bd936SNamhyung Kim .sample = sample, 8317c50391fSNamhyung Kim .add_entry_cb = hist_iter__top_callback, 8327c50391fSNamhyung Kim }; 83370db7533SArnaldo Carvalho de Melo 8347c50391fSNamhyung Kim if (symbol_conf.cumulate_callchain) 8357c50391fSNamhyung Kim iter.ops = &hist_iter_cumulative; 8367c50391fSNamhyung Kim else 8377c50391fSNamhyung Kim iter.ops = &hist_iter_normal; 83819d4ac3cSArnaldo Carvalho de Melo 839*8e03bb88SIan Rogers mutex_lock(&hists->lock); 8407c50391fSNamhyung Kim 841662a9810Stangmeng if (hist_entry_iter__add(&iter, &al, top->max_stack, top) < 0) 842ab81f3fdSArnaldo Carvalho de Melo pr_err("Problem incrementing symbol period, skipping event\n"); 843ab81f3fdSArnaldo Carvalho de Melo 844*8e03bb88SIan Rogers mutex_unlock(&hists->lock); 8455807806aSArnaldo Carvalho de Melo } 846ab81f3fdSArnaldo Carvalho de Melo 847b91fc39fSArnaldo Carvalho de Melo addr_location__put(&al); 84886470930SIngo Molnar } 84986470930SIngo Molnar 850d24e3c98SJiri Olsa static void 851d24e3c98SJiri Olsa perf_top__process_lost(struct perf_top *top, union perf_event *event, 85232dcd021SJiri Olsa struct evsel *evsel) 853d24e3c98SJiri Olsa { 854d24e3c98SJiri Olsa top->lost += event->lost.lost; 855d24e3c98SJiri Olsa top->lost_total += event->lost.lost; 856bf8f8587SNamhyung Kim evsel->evlist->stats.total_lost += event->lost.lost; 857d24e3c98SJiri Olsa } 858d24e3c98SJiri Olsa 859d24e3c98SJiri Olsa static void 860d24e3c98SJiri Olsa perf_top__process_lost_samples(struct perf_top *top, 861d24e3c98SJiri Olsa union perf_event *event, 86232dcd021SJiri Olsa struct evsel *evsel) 863d24e3c98SJiri Olsa { 864d24e3c98SJiri Olsa top->lost += event->lost_samples.lost; 865d24e3c98SJiri Olsa top->lost_total += event->lost_samples.lost; 866bf8f8587SNamhyung Kim evsel->evlist->stats.total_lost_samples += event->lost_samples.lost; 867d24e3c98SJiri Olsa } 868d24e3c98SJiri Olsa 869d63b9f6fSJiri Olsa static u64 last_timestamp; 870d63b9f6fSJiri Olsa 8711758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read_idx(struct perf_top *top, int idx) 87286470930SIngo Molnar { 873ebebbf08SKan Liang struct record_opts *opts = &top->record_opts; 87463503dbaSJiri Olsa struct evlist *evlist = top->evlist; 875a5830532SJiri Olsa struct mmap *md; 8768115d60cSArnaldo Carvalho de Melo union perf_event *event; 87786470930SIngo Molnar 878ebebbf08SKan Liang md = opts->overwrite ? &evlist->overwrite_mmap[idx] : &evlist->mmap[idx]; 8797c4d4182SJiri Olsa if (perf_mmap__read_init(&md->core) < 0) 880ebebbf08SKan Liang return; 881ebebbf08SKan Liang 882151ed5d7SJiri Olsa while ((event = perf_mmap__read_event(&md->core)) != NULL) { 88316c66bc1SJiri Olsa int ret; 88404391debSArnaldo Carvalho de Melo 8852a6599cdSArnaldo Carvalho de Melo ret = evlist__parse_sample_timestamp(evlist, event, &last_timestamp); 88616c66bc1SJiri Olsa if (ret && ret != -1) 887743eb868SArnaldo Carvalho de Melo break; 888743eb868SArnaldo Carvalho de Melo 8892292083fSAlexey Bayduraev ret = ordered_events__queue(top->qe.in, event, last_timestamp, 0, NULL); 89016c66bc1SJiri Olsa if (ret) 89116c66bc1SJiri Olsa break; 89294ad6e7eSJiri Olsa 8937728fa0cSJiri Olsa perf_mmap__consume(&md->core); 89494ad6e7eSJiri Olsa 89594ad6e7eSJiri Olsa if (top->qe.rotate) { 89694ad6e7eSJiri Olsa pthread_mutex_lock(&top->qe.mutex); 89794ad6e7eSJiri Olsa top->qe.rotate = false; 89894ad6e7eSJiri Olsa pthread_cond_signal(&top->qe.cond); 89994ad6e7eSJiri Olsa pthread_mutex_unlock(&top->qe.mutex); 90094ad6e7eSJiri Olsa } 90186470930SIngo Molnar } 902ebebbf08SKan Liang 90332fdc2caSJiri Olsa perf_mmap__read_done(&md->core); 90486470930SIngo Molnar } 90586470930SIngo Molnar 9061758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read(struct perf_top *top) 9072f01190aSFrederic Weisbecker { 908ebebbf08SKan Liang bool overwrite = top->record_opts.overwrite; 90963503dbaSJiri Olsa struct evlist *evlist = top->evlist; 91070db7533SArnaldo Carvalho de Melo int i; 9112f01190aSFrederic Weisbecker 912ebebbf08SKan Liang if (overwrite) 913ade9d208SArnaldo Carvalho de Melo evlist__toggle_bkw_mmap(evlist, BKW_MMAP_DATA_PENDING); 914ebebbf08SKan Liang 915c976ee11SJiri Olsa for (i = 0; i < top->evlist->core.nr_mmaps; i++) 9161758af10SArnaldo Carvalho de Melo perf_top__mmap_read_idx(top, i); 917ebebbf08SKan Liang 918ebebbf08SKan Liang if (overwrite) { 919ade9d208SArnaldo Carvalho de Melo evlist__toggle_bkw_mmap(evlist, BKW_MMAP_EMPTY); 920ade9d208SArnaldo Carvalho de Melo evlist__toggle_bkw_mmap(evlist, BKW_MMAP_RUNNING); 921ebebbf08SKan Liang } 9222f01190aSFrederic Weisbecker } 9232f01190aSFrederic Weisbecker 92463878a53SKan Liang /* 92563878a53SKan Liang * Check per-event overwrite term. 92663878a53SKan Liang * perf top should support consistent term for all events. 92763878a53SKan Liang * - All events don't have per-event term 92863878a53SKan Liang * E.g. "cpu/cpu-cycles/,cpu/instructions/" 92963878a53SKan Liang * Nothing change, return 0. 93063878a53SKan Liang * - All events have same per-event term 93163878a53SKan Liang * E.g. "cpu/cpu-cycles,no-overwrite/,cpu/instructions,no-overwrite/ 93263878a53SKan Liang * Using the per-event setting to replace the opts->overwrite if 93363878a53SKan Liang * they are different, then return 0. 93463878a53SKan Liang * - Events have different per-event term 93563878a53SKan Liang * E.g. "cpu/cpu-cycles,overwrite/,cpu/instructions,no-overwrite/" 93663878a53SKan Liang * Return -1 93763878a53SKan Liang * - Some of the event set per-event term, but some not. 93863878a53SKan Liang * E.g. "cpu/cpu-cycles/,cpu/instructions,no-overwrite/" 93963878a53SKan Liang * Return -1 94063878a53SKan Liang */ 94163878a53SKan Liang static int perf_top__overwrite_check(struct perf_top *top) 94263878a53SKan Liang { 94363878a53SKan Liang struct record_opts *opts = &top->record_opts; 94463503dbaSJiri Olsa struct evlist *evlist = top->evlist; 94535ac0cadSArnaldo Carvalho de Melo struct evsel_config_term *term; 94663878a53SKan Liang struct list_head *config_terms; 94732dcd021SJiri Olsa struct evsel *evsel; 94863878a53SKan Liang int set, overwrite = -1; 94963878a53SKan Liang 95063878a53SKan Liang evlist__for_each_entry(evlist, evsel) { 95163878a53SKan Liang set = -1; 95263878a53SKan Liang config_terms = &evsel->config_terms; 95363878a53SKan Liang list_for_each_entry(term, config_terms, list) { 95435ac0cadSArnaldo Carvalho de Melo if (term->type == EVSEL__CONFIG_TERM_OVERWRITE) 95563878a53SKan Liang set = term->val.overwrite ? 1 : 0; 95663878a53SKan Liang } 95763878a53SKan Liang 95863878a53SKan Liang /* no term for current and previous event (likely) */ 95963878a53SKan Liang if ((overwrite < 0) && (set < 0)) 96063878a53SKan Liang continue; 96163878a53SKan Liang 96263878a53SKan Liang /* has term for both current and previous event, compare */ 96363878a53SKan Liang if ((overwrite >= 0) && (set >= 0) && (overwrite != set)) 96463878a53SKan Liang return -1; 96563878a53SKan Liang 96663878a53SKan Liang /* no term for current event but has term for previous one */ 96763878a53SKan Liang if ((overwrite >= 0) && (set < 0)) 96863878a53SKan Liang return -1; 96963878a53SKan Liang 97063878a53SKan Liang /* has term for current event */ 97163878a53SKan Liang if ((overwrite < 0) && (set >= 0)) { 97263878a53SKan Liang /* if it's first event, set overwrite */ 973515dbe48SJiri Olsa if (evsel == evlist__first(evlist)) 97463878a53SKan Liang overwrite = set; 97563878a53SKan Liang else 97663878a53SKan Liang return -1; 97763878a53SKan Liang } 97863878a53SKan Liang } 97963878a53SKan Liang 98063878a53SKan Liang if ((overwrite >= 0) && (opts->overwrite != overwrite)) 98163878a53SKan Liang opts->overwrite = overwrite; 98263878a53SKan Liang 98363878a53SKan Liang return 0; 98463878a53SKan Liang } 98563878a53SKan Liang 986204721d7SKan Liang static int perf_top_overwrite_fallback(struct perf_top *top, 98732dcd021SJiri Olsa struct evsel *evsel) 988204721d7SKan Liang { 989204721d7SKan Liang struct record_opts *opts = &top->record_opts; 99063503dbaSJiri Olsa struct evlist *evlist = top->evlist; 99132dcd021SJiri Olsa struct evsel *counter; 992204721d7SKan Liang 993204721d7SKan Liang if (!opts->overwrite) 994204721d7SKan Liang return 0; 995204721d7SKan Liang 996204721d7SKan Liang /* only fall back when first event fails */ 997515dbe48SJiri Olsa if (evsel != evlist__first(evlist)) 998204721d7SKan Liang return 0; 999204721d7SKan Liang 1000204721d7SKan Liang evlist__for_each_entry(evlist, counter) 10011fc632ceSJiri Olsa counter->core.attr.write_backward = false; 1002204721d7SKan Liang opts->overwrite = false; 1003853745f5SKan Liang pr_debug2("fall back to non-overwrite mode\n"); 1004204721d7SKan Liang return 1; 1005204721d7SKan Liang } 1006204721d7SKan Liang 100711859e82SArnaldo Carvalho de Melo static int perf_top__start_counters(struct perf_top *top) 100872cb7013SArnaldo Carvalho de Melo { 1009d6195a6aSArnaldo Carvalho de Melo char msg[BUFSIZ]; 101032dcd021SJiri Olsa struct evsel *counter; 101163503dbaSJiri Olsa struct evlist *evlist = top->evlist; 1012b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 1013727ab04eSArnaldo Carvalho de Melo 101463878a53SKan Liang if (perf_top__overwrite_check(top)) { 101563878a53SKan Liang ui__error("perf top only support consistent per-event " 101663878a53SKan Liang "overwrite setting for all events\n"); 101763878a53SKan Liang goto out_err; 101863878a53SKan Liang } 101963878a53SKan Liang 102078e1bc25SArnaldo Carvalho de Melo evlist__config(evlist, opts, &callchain_param); 102172cb7013SArnaldo Carvalho de Melo 1022e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(evlist, counter) { 102372cb7013SArnaldo Carvalho de Melo try_again: 10240df6ade7SIan Rogers if (evsel__open(counter, top->evlist->core.user_requested_cpus, 102503617c22SJiri Olsa top->evlist->core.threads) < 0) { 1026204721d7SKan Liang 1027204721d7SKan Liang /* 1028204721d7SKan Liang * Specially handle overwrite fall back. 1029204721d7SKan Liang * Because perf top is the only tool which has 1030204721d7SKan Liang * overwrite mode by default, support 1031204721d7SKan Liang * both overwrite and non-overwrite mode, and 1032204721d7SKan Liang * require consistent mode for all events. 1033204721d7SKan Liang * 1034204721d7SKan Liang * May move it to generic code with more tools 1035204721d7SKan Liang * have similar attribute. 1036204721d7SKan Liang */ 1037204721d7SKan Liang if (perf_missing_features.write_backward && 1038204721d7SKan Liang perf_top_overwrite_fallback(top, counter)) 1039204721d7SKan Liang goto try_again; 1040204721d7SKan Liang 1041ae430892SArnaldo Carvalho de Melo if (evsel__fallback(counter, errno, msg, sizeof(msg))) { 1042bb963e16SNamhyung Kim if (verbose > 0) 1043c0a54341SArnaldo Carvalho de Melo ui__warning("%s\n", msg); 104472cb7013SArnaldo Carvalho de Melo goto try_again; 104572cb7013SArnaldo Carvalho de Melo } 1046c286c419SArnaldo Carvalho de Melo 10472bb72dbbSArnaldo Carvalho de Melo evsel__open_strerror(counter, &opts->target, errno, msg, sizeof(msg)); 104856e52e85SArnaldo Carvalho de Melo ui__error("%s\n", msg); 1049c286c419SArnaldo Carvalho de Melo goto out_err; 105072cb7013SArnaldo Carvalho de Melo } 105172cb7013SArnaldo Carvalho de Melo } 105270db7533SArnaldo Carvalho de Melo 10539521b5f2SJiri Olsa if (evlist__mmap(evlist, opts->mmap_pages) < 0) { 10543780f488SNamhyung Kim ui__error("Failed to mmap with %d (%s)\n", 1055c8b5f2c9SArnaldo Carvalho de Melo errno, str_error_r(errno, msg, sizeof(msg))); 1056c286c419SArnaldo Carvalho de Melo goto out_err; 1057c286c419SArnaldo Carvalho de Melo } 1058c286c419SArnaldo Carvalho de Melo 105911859e82SArnaldo Carvalho de Melo return 0; 1060c286c419SArnaldo Carvalho de Melo 1061c286c419SArnaldo Carvalho de Melo out_err: 106211859e82SArnaldo Carvalho de Melo return -1; 106372cb7013SArnaldo Carvalho de Melo } 106472cb7013SArnaldo Carvalho de Melo 1065e3815264SArnaldo Carvalho de Melo static int callchain_param__setup_sample_type(struct callchain_param *callchain) 106619d4ac3cSArnaldo Carvalho de Melo { 1067f2e14cd2SArnaldo Carvalho de Melo if (callchain->mode != CHAIN_NONE) { 1068e3815264SArnaldo Carvalho de Melo if (callchain_register_param(callchain) < 0) { 10693780f488SNamhyung Kim ui__error("Can't register callchain params.\n"); 107019d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 107119d4ac3cSArnaldo Carvalho de Melo } 107219d4ac3cSArnaldo Carvalho de Melo } 107319d4ac3cSArnaldo Carvalho de Melo 107419d4ac3cSArnaldo Carvalho de Melo return 0; 107519d4ac3cSArnaldo Carvalho de Melo } 107619d4ac3cSArnaldo Carvalho de Melo 107716c66bc1SJiri Olsa static struct ordered_events *rotate_queues(struct perf_top *top) 107816c66bc1SJiri Olsa { 107916c66bc1SJiri Olsa struct ordered_events *in = top->qe.in; 108016c66bc1SJiri Olsa 108116c66bc1SJiri Olsa if (top->qe.in == &top->qe.data[1]) 108216c66bc1SJiri Olsa top->qe.in = &top->qe.data[0]; 108316c66bc1SJiri Olsa else 108416c66bc1SJiri Olsa top->qe.in = &top->qe.data[1]; 108516c66bc1SJiri Olsa 108616c66bc1SJiri Olsa return in; 108716c66bc1SJiri Olsa } 108816c66bc1SJiri Olsa 108916c66bc1SJiri Olsa static void *process_thread(void *arg) 109016c66bc1SJiri Olsa { 109116c66bc1SJiri Olsa struct perf_top *top = arg; 109216c66bc1SJiri Olsa 109316c66bc1SJiri Olsa while (!done) { 109416c66bc1SJiri Olsa struct ordered_events *out, *in = top->qe.in; 109516c66bc1SJiri Olsa 109616c66bc1SJiri Olsa if (!in->nr_events) { 109716c66bc1SJiri Olsa usleep(100); 109816c66bc1SJiri Olsa continue; 109916c66bc1SJiri Olsa } 110016c66bc1SJiri Olsa 110116c66bc1SJiri Olsa out = rotate_queues(top); 110294ad6e7eSJiri Olsa 110394ad6e7eSJiri Olsa pthread_mutex_lock(&top->qe.mutex); 110494ad6e7eSJiri Olsa top->qe.rotate = true; 110594ad6e7eSJiri Olsa pthread_cond_wait(&top->qe.cond, &top->qe.mutex); 110694ad6e7eSJiri Olsa pthread_mutex_unlock(&top->qe.mutex); 110716c66bc1SJiri Olsa 110816c66bc1SJiri Olsa if (ordered_events__flush(out, OE_FLUSH__TOP)) 110916c66bc1SJiri Olsa pr_err("failed to process events\n"); 111016c66bc1SJiri Olsa } 111116c66bc1SJiri Olsa 111216c66bc1SJiri Olsa return NULL; 111316c66bc1SJiri Olsa } 111416c66bc1SJiri Olsa 1115d63b9f6fSJiri Olsa /* 1116d63b9f6fSJiri Olsa * Allow only 'top->delay_secs' seconds behind samples. 1117d63b9f6fSJiri Olsa */ 1118d63b9f6fSJiri Olsa static int should_drop(struct ordered_event *qevent, struct perf_top *top) 1119d63b9f6fSJiri Olsa { 1120d63b9f6fSJiri Olsa union perf_event *event = qevent->event; 1121d63b9f6fSJiri Olsa u64 delay_timestamp; 1122d63b9f6fSJiri Olsa 1123d63b9f6fSJiri Olsa if (event->header.type != PERF_RECORD_SAMPLE) 1124d63b9f6fSJiri Olsa return false; 1125d63b9f6fSJiri Olsa 1126d63b9f6fSJiri Olsa delay_timestamp = qevent->timestamp + top->delay_secs * NSEC_PER_SEC; 1127d63b9f6fSJiri Olsa return delay_timestamp < last_timestamp; 1128d63b9f6fSJiri Olsa } 1129d63b9f6fSJiri Olsa 113016c66bc1SJiri Olsa static int deliver_event(struct ordered_events *qe, 113116c66bc1SJiri Olsa struct ordered_event *qevent) 113216c66bc1SJiri Olsa { 113316c66bc1SJiri Olsa struct perf_top *top = qe->data; 113463503dbaSJiri Olsa struct evlist *evlist = top->evlist; 113516c66bc1SJiri Olsa struct perf_session *session = top->session; 113616c66bc1SJiri Olsa union perf_event *event = qevent->event; 113716c66bc1SJiri Olsa struct perf_sample sample; 113832dcd021SJiri Olsa struct evsel *evsel; 113916c66bc1SJiri Olsa struct machine *machine; 114016c66bc1SJiri Olsa int ret = -1; 114116c66bc1SJiri Olsa 114297f7e0b3SJiri Olsa if (should_drop(qevent, top)) { 114397f7e0b3SJiri Olsa top->drop++; 114497f7e0b3SJiri Olsa top->drop_total++; 1145d63b9f6fSJiri Olsa return 0; 114697f7e0b3SJiri Olsa } 1147d63b9f6fSJiri Olsa 11482a6599cdSArnaldo Carvalho de Melo ret = evlist__parse_sample(evlist, event, &sample); 114916c66bc1SJiri Olsa if (ret) { 115016c66bc1SJiri Olsa pr_err("Can't parse sample, err = %d\n", ret); 115116c66bc1SJiri Olsa goto next_event; 115216c66bc1SJiri Olsa } 115316c66bc1SJiri Olsa 11543ccf8a7bSArnaldo Carvalho de Melo evsel = evlist__id2evsel(session->evlist, sample.id); 115516c66bc1SJiri Olsa assert(evsel != NULL); 115616c66bc1SJiri Olsa 11572f53ae34SArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) { 11582f53ae34SArnaldo Carvalho de Melo if (evswitch__discard(&top->evswitch, evsel)) 11592f53ae34SArnaldo Carvalho de Melo return 0; 116016c66bc1SJiri Olsa ++top->samples; 11612f53ae34SArnaldo Carvalho de Melo } 116216c66bc1SJiri Olsa 116316c66bc1SJiri Olsa switch (sample.cpumode) { 116416c66bc1SJiri Olsa case PERF_RECORD_MISC_USER: 116516c66bc1SJiri Olsa ++top->us_samples; 116616c66bc1SJiri Olsa if (top->hide_user_symbols) 116716c66bc1SJiri Olsa goto next_event; 116816c66bc1SJiri Olsa machine = &session->machines.host; 116916c66bc1SJiri Olsa break; 117016c66bc1SJiri Olsa case PERF_RECORD_MISC_KERNEL: 117116c66bc1SJiri Olsa ++top->kernel_samples; 117216c66bc1SJiri Olsa if (top->hide_kernel_symbols) 117316c66bc1SJiri Olsa goto next_event; 117416c66bc1SJiri Olsa machine = &session->machines.host; 117516c66bc1SJiri Olsa break; 117616c66bc1SJiri Olsa case PERF_RECORD_MISC_GUEST_KERNEL: 117716c66bc1SJiri Olsa ++top->guest_kernel_samples; 117816c66bc1SJiri Olsa machine = perf_session__find_machine(session, 117916c66bc1SJiri Olsa sample.pid); 118016c66bc1SJiri Olsa break; 118116c66bc1SJiri Olsa case PERF_RECORD_MISC_GUEST_USER: 118216c66bc1SJiri Olsa ++top->guest_us_samples; 118316c66bc1SJiri Olsa /* 118416c66bc1SJiri Olsa * TODO: we don't process guest user from host side 118516c66bc1SJiri Olsa * except simple counting. 118616c66bc1SJiri Olsa */ 118716c66bc1SJiri Olsa goto next_event; 118816c66bc1SJiri Olsa default: 118916c66bc1SJiri Olsa if (event->header.type == PERF_RECORD_SAMPLE) 119016c66bc1SJiri Olsa goto next_event; 119116c66bc1SJiri Olsa machine = &session->machines.host; 119216c66bc1SJiri Olsa break; 119316c66bc1SJiri Olsa } 119416c66bc1SJiri Olsa 119516c66bc1SJiri Olsa if (event->header.type == PERF_RECORD_SAMPLE) { 119616c66bc1SJiri Olsa perf_event__process_sample(&top->tool, event, evsel, 119716c66bc1SJiri Olsa &sample, machine); 119816c66bc1SJiri Olsa } else if (event->header.type == PERF_RECORD_LOST) { 119916c66bc1SJiri Olsa perf_top__process_lost(top, event, evsel); 120016c66bc1SJiri Olsa } else if (event->header.type == PERF_RECORD_LOST_SAMPLES) { 120116c66bc1SJiri Olsa perf_top__process_lost_samples(top, event, evsel); 120216c66bc1SJiri Olsa } else if (event->header.type < PERF_RECORD_MAX) { 1203bf8f8587SNamhyung Kim events_stats__inc(&session->evlist->stats, event->header.type); 120416c66bc1SJiri Olsa machine__process_event(machine, event, &sample); 120516c66bc1SJiri Olsa } else 120616c66bc1SJiri Olsa ++session->evlist->stats.nr_unknown_events; 120716c66bc1SJiri Olsa 120816c66bc1SJiri Olsa ret = 0; 120916c66bc1SJiri Olsa next_event: 121016c66bc1SJiri Olsa return ret; 121116c66bc1SJiri Olsa } 121216c66bc1SJiri Olsa 121316c66bc1SJiri Olsa static void init_process_thread(struct perf_top *top) 121416c66bc1SJiri Olsa { 121516c66bc1SJiri Olsa ordered_events__init(&top->qe.data[0], deliver_event, top); 121616c66bc1SJiri Olsa ordered_events__init(&top->qe.data[1], deliver_event, top); 121716c66bc1SJiri Olsa ordered_events__set_copy_on_queue(&top->qe.data[0], true); 121816c66bc1SJiri Olsa ordered_events__set_copy_on_queue(&top->qe.data[1], true); 121916c66bc1SJiri Olsa top->qe.in = &top->qe.data[0]; 122094ad6e7eSJiri Olsa pthread_mutex_init(&top->qe.mutex, NULL); 122194ad6e7eSJiri Olsa pthread_cond_init(&top->qe.cond, NULL); 122216c66bc1SJiri Olsa } 122316c66bc1SJiri Olsa 12241758af10SArnaldo Carvalho de Melo static int __cmd_top(struct perf_top *top) 1225716c69feSIngo Molnar { 1226b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 122716c66bc1SJiri Olsa pthread_t thread, thread_process; 122819d4ac3cSArnaldo Carvalho de Melo int ret; 1229f5fc1412SJiri Olsa 1230f178fd2dSArnaldo Carvalho de Melo if (!top->annotation_opts.objdump_path) { 1231f178fd2dSArnaldo Carvalho de Melo ret = perf_env__lookup_objdump(&top->session->header.env, 1232f178fd2dSArnaldo Carvalho de Melo &top->annotation_opts.objdump_path); 12330d3942dbSSukadev Bhattiprolu if (ret) 12340dba9e4bSChangbin Du return ret; 12350d3942dbSSukadev Bhattiprolu } 12360d3942dbSSukadev Bhattiprolu 1237e3815264SArnaldo Carvalho de Melo ret = callchain_param__setup_sample_type(&callchain_param); 123819d4ac3cSArnaldo Carvalho de Melo if (ret) 12390dba9e4bSChangbin Du return ret; 124019d4ac3cSArnaldo Carvalho de Melo 12419d8b172fSMasami Hiramatsu if (perf_session__register_idle_thread(top->session) < 0) 12420dba9e4bSChangbin Du return ret; 1243c53d138dSNamhyung Kim 12440c6b4994SKan Liang if (top->nr_threads_synthesize > 1) 1245340b47f5SKan Liang perf_set_multithreaded(); 1246340b47f5SKan Liang 124716c66bc1SJiri Olsa init_process_thread(top); 124816c66bc1SJiri Olsa 1249a0c0a4acSNamhyung Kim if (opts->record_namespaces) 1250a0c0a4acSNamhyung Kim top->tool.namespace_events = true; 1251f382842fSNamhyung Kim if (opts->record_cgroup) { 1252f382842fSNamhyung Kim #ifdef HAVE_FILE_HANDLE 1253f382842fSNamhyung Kim top->tool.cgroup_events = true; 1254f382842fSNamhyung Kim #else 1255f382842fSNamhyung Kim pr_err("cgroup tracking is not supported.\n"); 1256f382842fSNamhyung Kim return -1; 1257f382842fSNamhyung Kim #endif 1258f382842fSNamhyung Kim } 1259a0c0a4acSNamhyung Kim 1260e5416950SSong Liu ret = perf_event__synthesize_bpf_events(top->session, perf_event__process, 1261a40b95bcSArnaldo Carvalho de Melo &top->session->machines.host, 1262a40b95bcSArnaldo Carvalho de Melo &top->record_opts); 1263a40b95bcSArnaldo Carvalho de Melo if (ret < 0) 12642d45ef70SArnaldo Carvalho de Melo pr_debug("Couldn't synthesize BPF events: Pre-existing BPF programs won't have symbols resolved.\n"); 1265a40b95bcSArnaldo Carvalho de Melo 1266f382842fSNamhyung Kim ret = perf_event__synthesize_cgroups(&top->tool, perf_event__process, 1267f382842fSNamhyung Kim &top->session->machines.host); 1268f382842fSNamhyung Kim if (ret < 0) 1269f382842fSNamhyung Kim pr_debug("Couldn't synthesize cgroup events.\n"); 1270f382842fSNamhyung Kim 1271a33fbd56SArnaldo Carvalho de Melo machine__synthesize_threads(&top->session->machines.host, &opts->target, 127284111b9cSNamhyung Kim top->evlist->core.threads, true, false, 12730c6b4994SKan Liang top->nr_threads_synthesize); 1274340b47f5SKan Liang 12750c6b4994SKan Liang if (top->nr_threads_synthesize > 1) 1276340b47f5SKan Liang perf_set_singlethreaded(); 12772e7ea3abSKan Liang 127835a634f7SJiri Olsa if (perf_hpp_list.socket) { 12792e7ea3abSKan Liang ret = perf_env__read_cpu_topology_map(&perf_env); 12800dba9e4bSChangbin Du if (ret < 0) { 12810dba9e4bSChangbin Du char errbuf[BUFSIZ]; 12820dba9e4bSChangbin Du const char *err = str_error_r(-ret, errbuf, sizeof(errbuf)); 12830dba9e4bSChangbin Du 12840dba9e4bSChangbin Du ui__error("Could not read the CPU topology map: %s\n", err); 12850dba9e4bSChangbin Du return ret; 12860dba9e4bSChangbin Du } 12872e7ea3abSKan Liang } 12882e7ea3abSKan Liang 128911859e82SArnaldo Carvalho de Melo ret = perf_top__start_counters(top); 129011859e82SArnaldo Carvalho de Melo if (ret) 12910dba9e4bSChangbin Du return ret; 129211859e82SArnaldo Carvalho de Melo 12931758af10SArnaldo Carvalho de Melo top->session->evlist = top->evlist; 12947b56cce2SArnaldo Carvalho de Melo perf_session__set_id_hdr_size(top->session); 129586470930SIngo Molnar 12962376c67aSArnaldo Carvalho de Melo /* 12972376c67aSArnaldo Carvalho de Melo * When perf is starting the traced process, all the events (apart from 12982376c67aSArnaldo Carvalho de Melo * group members) have enable_on_exec=1 set, so don't spoil it by 12992376c67aSArnaldo Carvalho de Melo * prematurely enabling them. 13002376c67aSArnaldo Carvalho de Melo * 13012376c67aSArnaldo Carvalho de Melo * XXX 'top' still doesn't start workloads like record, trace, but should, 13022376c67aSArnaldo Carvalho de Melo * so leave the check here. 13032376c67aSArnaldo Carvalho de Melo */ 1304602ad878SArnaldo Carvalho de Melo if (!target__none(&opts->target)) 13051c87f165SJiri Olsa evlist__enable(top->evlist); 13062376c67aSArnaldo Carvalho de Melo 130711859e82SArnaldo Carvalho de Melo ret = -1; 130816c66bc1SJiri Olsa if (pthread_create(&thread_process, NULL, process_thread, top)) { 130916c66bc1SJiri Olsa ui__error("Could not create process thread.\n"); 13100dba9e4bSChangbin Du return ret; 131116c66bc1SJiri Olsa } 131216c66bc1SJiri Olsa 1313c0443df1SArnaldo Carvalho de Melo if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : 13141758af10SArnaldo Carvalho de Melo display_thread), top)) { 13153780f488SNamhyung Kim ui__error("Could not create display thread.\n"); 131616c66bc1SJiri Olsa goto out_join_thread; 131786470930SIngo Molnar } 131886470930SIngo Molnar 13191758af10SArnaldo Carvalho de Melo if (top->realtime_prio) { 132086470930SIngo Molnar struct sched_param param; 132186470930SIngo Molnar 13221758af10SArnaldo Carvalho de Melo param.sched_priority = top->realtime_prio; 132386470930SIngo Molnar if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { 13243780f488SNamhyung Kim ui__error("Could not set realtime priority.\n"); 1325ae256fa2SJiri Olsa goto out_join; 132686470930SIngo Molnar } 132786470930SIngo Molnar } 132886470930SIngo Molnar 1329ff27a06aSDavid Miller /* Wait for a minimal set of events before starting the snapshot */ 133080ab2987SJiri Olsa evlist__poll(top->evlist, 100); 1331ff27a06aSDavid Miller 1332ff27a06aSDavid Miller perf_top__mmap_read(top); 1333ff27a06aSDavid Miller 133411859e82SArnaldo Carvalho de Melo while (!done) { 13351758af10SArnaldo Carvalho de Melo u64 hits = top->samples; 133686470930SIngo Molnar 13371758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 133886470930SIngo Molnar 1339ebebbf08SKan Liang if (opts->overwrite || (hits == top->samples)) 134080ab2987SJiri Olsa ret = evlist__poll(top->evlist, 100); 1341b135e5eeSJiri Olsa 1342b135e5eeSJiri Olsa if (resize) { 1343b135e5eeSJiri Olsa perf_top__resize(top); 1344b135e5eeSJiri Olsa resize = 0; 1345b135e5eeSJiri Olsa } 134686470930SIngo Molnar } 134786470930SIngo Molnar 134811859e82SArnaldo Carvalho de Melo ret = 0; 1349ae256fa2SJiri Olsa out_join: 1350ae256fa2SJiri Olsa pthread_join(thread, NULL); 135116c66bc1SJiri Olsa out_join_thread: 135294ad6e7eSJiri Olsa pthread_cond_signal(&top->qe.cond); 135316c66bc1SJiri Olsa pthread_join(thread_process, NULL); 135411859e82SArnaldo Carvalho de Melo return ret; 135519d4ac3cSArnaldo Carvalho de Melo } 135619d4ac3cSArnaldo Carvalho de Melo 135719d4ac3cSArnaldo Carvalho de Melo static int 1358ae779a63SJiri Olsa callchain_opt(const struct option *opt, const char *arg, int unset) 1359ae779a63SJiri Olsa { 1360ae779a63SJiri Olsa symbol_conf.use_callchain = true; 1361ae779a63SJiri Olsa return record_callchain_opt(opt, arg, unset); 1362ae779a63SJiri Olsa } 1363ae779a63SJiri Olsa 1364ae779a63SJiri Olsa static int 13651758af10SArnaldo Carvalho de Melo parse_callchain_opt(const struct option *opt, const char *arg, int unset) 136619d4ac3cSArnaldo Carvalho de Melo { 13672ddd5c04SArnaldo Carvalho de Melo struct callchain_param *callchain = opt->value; 1368a2c10d39SNamhyung Kim 13692ddd5c04SArnaldo Carvalho de Melo callchain->enabled = !unset; 13702ddd5c04SArnaldo Carvalho de Melo callchain->record_mode = CALLCHAIN_FP; 1371a2c10d39SNamhyung Kim 1372a2c10d39SNamhyung Kim /* 1373a2c10d39SNamhyung Kim * --no-call-graph 1374a2c10d39SNamhyung Kim */ 1375a2c10d39SNamhyung Kim if (unset) { 1376a2c10d39SNamhyung Kim symbol_conf.use_callchain = false; 13772ddd5c04SArnaldo Carvalho de Melo callchain->record_mode = CALLCHAIN_NONE; 1378a2c10d39SNamhyung Kim return 0; 1379a2c10d39SNamhyung Kim } 1380a2c10d39SNamhyung Kim 1381a2c10d39SNamhyung Kim return parse_callchain_top_opt(arg); 138286470930SIngo Molnar } 138386470930SIngo Molnar 1384b8cbb349SWang Nan static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused) 1385eb853e80SJiri Olsa { 1386a3a4a3b3SYisheng Xie if (!strcmp(var, "top.call-graph")) { 1387a3a4a3b3SYisheng Xie var = "call-graph.record-mode"; 1388a3a4a3b3SYisheng Xie return perf_default_config(var, value, cb); 1389a3a4a3b3SYisheng Xie } 1390104ac991SNamhyung Kim if (!strcmp(var, "top.children")) { 1391104ac991SNamhyung Kim symbol_conf.cumulate_callchain = perf_config_bool(var, value); 1392104ac991SNamhyung Kim return 0; 1393104ac991SNamhyung Kim } 1394eb853e80SJiri Olsa 1395b8cbb349SWang Nan return 0; 1396eb853e80SJiri Olsa } 1397eb853e80SJiri Olsa 1398fa5df943SNamhyung Kim static int 1399fa5df943SNamhyung Kim parse_percent_limit(const struct option *opt, const char *arg, 1400fa5df943SNamhyung Kim int unset __maybe_unused) 1401fa5df943SNamhyung Kim { 1402fa5df943SNamhyung Kim struct perf_top *top = opt->value; 1403fa5df943SNamhyung Kim 1404fa5df943SNamhyung Kim top->min_percent = strtof(arg, NULL); 1405fa5df943SNamhyung Kim return 0; 1406fa5df943SNamhyung Kim } 1407fa5df943SNamhyung Kim 140876a26549SNamhyung Kim const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP 140976a26549SNamhyung Kim "\n\t\t\t\tDefault: fp,graph,0.5,caller,function"; 1410a2c10d39SNamhyung Kim 1411b0ad8ea6SArnaldo Carvalho de Melo int cmd_top(int argc, const char **argv) 14121758af10SArnaldo Carvalho de Melo { 141316ad2ffbSNamhyung Kim char errbuf[BUFSIZ]; 14141758af10SArnaldo Carvalho de Melo struct perf_top top = { 14151758af10SArnaldo Carvalho de Melo .count_filter = 5, 14161758af10SArnaldo Carvalho de Melo .delay_secs = 2, 14172376c67aSArnaldo Carvalho de Melo .record_opts = { 14182376c67aSArnaldo Carvalho de Melo .mmap_pages = UINT_MAX, 14192376c67aSArnaldo Carvalho de Melo .user_freq = UINT_MAX, 14202376c67aSArnaldo Carvalho de Melo .user_interval = ULLONG_MAX, 1421447a6013SArnaldo Carvalho de Melo .freq = 4000, /* 4 KHz */ 1422d1cb9fceSNamhyung Kim .target = { 1423d1cb9fceSNamhyung Kim .uses_mmap = true, 1424d1cb9fceSNamhyung Kim }, 1425218d6111SArnaldo Carvalho de Melo /* 1426218d6111SArnaldo Carvalho de Melo * FIXME: This will lose PERF_RECORD_MMAP and other metadata 1427218d6111SArnaldo Carvalho de Melo * when we pause, fix that and reenable. Probably using a 1428218d6111SArnaldo Carvalho de Melo * separate evlist with a dummy event, i.e. a non-overwrite 1429218d6111SArnaldo Carvalho de Melo * ring buffer just for metadata events, while PERF_RECORD_SAMPLE 1430218d6111SArnaldo Carvalho de Melo * stays in overwrite mode. -acme 1431218d6111SArnaldo Carvalho de Melo * */ 1432218d6111SArnaldo Carvalho de Melo .overwrite = 0, 143316c66bc1SJiri Olsa .sample_time = true, 14341e6db2eeSJiri Olsa .sample_time_set = true, 14352376c67aSArnaldo Carvalho de Melo }, 1436029c75e5SArnaldo Carvalho de Melo .max_stack = sysctl__max_stack(), 1437982d410bSArnaldo Carvalho de Melo .annotation_opts = annotation__default_options, 14380c6b4994SKan Liang .nr_threads_synthesize = UINT_MAX, 14391758af10SArnaldo Carvalho de Melo }; 1440b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top.record_opts; 1441602ad878SArnaldo Carvalho de Melo struct target *target = &opts->target; 14421758af10SArnaldo Carvalho de Melo const struct option options[] = { 14438c3e10ebSArnaldo Carvalho de Melo OPT_CALLBACK('e', "event", &top.evlist, "event", 144486470930SIngo Molnar "event selector. use 'perf list' to list available events", 1445f120f9d5SJiri Olsa parse_events_option), 14462376c67aSArnaldo Carvalho de Melo OPT_U64('c', "count", &opts->user_interval, "event period to sample"), 14472376c67aSArnaldo Carvalho de Melo OPT_STRING('p', "pid", &target->pid, "pid", 1448d6d901c2SZhang, Yanmin "profile events on existing process id"), 14492376c67aSArnaldo Carvalho de Melo OPT_STRING('t', "tid", &target->tid, "tid", 1450d6d901c2SZhang, Yanmin "profile events on existing thread id"), 14512376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('a', "all-cpus", &target->system_wide, 145286470930SIngo Molnar "system-wide collection from all CPUs"), 14532376c67aSArnaldo Carvalho de Melo OPT_STRING('C', "cpu", &target->cpu_list, "cpu", 1454c45c6ea2SStephane Eranian "list of cpus to monitor"), 1455b32d133aSArnaldo Carvalho de Melo OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1456b32d133aSArnaldo Carvalho de Melo "file", "vmlinux pathname"), 1457fc2be696SWilly Tarreau OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, 1458fc2be696SWilly Tarreau "don't load vmlinux even if found"), 14591b3aae90SArnaldo Carvalho de Melo OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, 14601b3aae90SArnaldo Carvalho de Melo "file", "kallsyms pathname"), 14618c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, 14628ffcda17SArnaldo Carvalho de Melo "hide kernel symbols"), 1463994a1f78SJiri Olsa OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", 146425f84702SArnaldo Carvalho de Melo "number of mmap data pages", evlist__parse_mmap_pages), 14651758af10SArnaldo Carvalho de Melo OPT_INTEGER('r', "realtime", &top.realtime_prio, 146686470930SIngo Molnar "collect data with this RT SCHED_FIFO priority"), 14678c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('d', "delay", &top.delay_secs, 146886470930SIngo Molnar "number of seconds to delay between refreshes"), 14691758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, 147086470930SIngo Molnar "dump the symbol table used for profiling"), 14718c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('f', "count-filter", &top.count_filter, 147286470930SIngo Molnar "only display functions with more events than this"), 1473bf80669eSDavid Ahern OPT_BOOLEAN(0, "group", &opts->group, 147486470930SIngo Molnar "put the counters into a counter group"), 14752376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, 14762376c67aSArnaldo Carvalho de Melo "child tasks do not inherit counters"), 14771758af10SArnaldo Carvalho de Melo OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", 14786cff0e8dSKirill Smelkov "symbol to annotate"), 14792376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), 14807831bf23SArnaldo Carvalho de Melo OPT_CALLBACK('F', "freq", &top.record_opts, "freq or 'max'", 14817831bf23SArnaldo Carvalho de Melo "profile at this frequency", 14827831bf23SArnaldo Carvalho de Melo record__parse_freq), 14838c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('E', "entries", &top.print_entries, 148486470930SIngo Molnar "display this many functions"), 14858c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, 14868ffcda17SArnaldo Carvalho de Melo "hide user symbols"), 14873402ae0aSIan Rogers #ifdef HAVE_SLANG_SUPPORT 14881758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), 14893402ae0aSIan Rogers #endif 14901758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), 1491c0555642SIan Munsie OPT_INCR('v', "verbose", &verbose, 14923da297a6SIngo Molnar "be more verbose (show counter open errors, etc)"), 1493ab81f3fdSArnaldo Carvalho de Melo OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 1494a2ce067eSNamhyung Kim "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." 1495a2ce067eSNamhyung Kim " Please refer the man page for the complete list."), 14966fe8c26dSNamhyung Kim OPT_STRING(0, "fields", &field_order, "key[,keys...]", 14976fe8c26dSNamhyung Kim "output field(s): overhead, period, sample plus all of sort keys"), 1498ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 1499ab81f3fdSArnaldo Carvalho de Melo "Show a column with the number of samples"), 15002ddd5c04SArnaldo Carvalho de Melo OPT_CALLBACK_NOOPT('g', NULL, &callchain_param, 1501a2c10d39SNamhyung Kim NULL, "enables call-graph recording and display", 1502ae779a63SJiri Olsa &callchain_opt), 15032ddd5c04SArnaldo Carvalho de Melo OPT_CALLBACK(0, "call-graph", &callchain_param, 150476a26549SNamhyung Kim "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]", 1505a2c10d39SNamhyung Kim top_callchain_help, &parse_callchain_opt), 15061432ec34SNamhyung Kim OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, 15071432ec34SNamhyung Kim "Accumulate callchains of children and show total overhead as well"), 15085dbb6e81SWaiman Long OPT_INTEGER(0, "max-stack", &top.max_stack, 15095dbb6e81SWaiman Long "Set the maximum stack depth when parsing the callchain. " 15104cb93446SArnaldo Carvalho de Melo "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), 1511b21484f1SGreg Price OPT_CALLBACK(0, "ignore-callees", NULL, "regex", 1512b21484f1SGreg Price "ignore callees of these functions in call graphs", 1513b21484f1SGreg Price report_parse_ignore_callees_opt), 1514ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 1515ab81f3fdSArnaldo Carvalho de Melo "Show a column with the sum of periods"), 1516ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 1517ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these dsos"), 1518ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1519ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these comms"), 1520ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1521ab81f3fdSArnaldo Carvalho de Melo "only consider these symbols"), 15221eddd9e4SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "source", &top.annotation_opts.annotate_src, 152364c6f0c7SArnaldo Carvalho de Melo "Interleave source code with assembly code (default)"), 15241eddd9e4SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "asm-raw", &top.annotation_opts.show_asm_raw, 152564c6f0c7SArnaldo Carvalho de Melo "Display raw encoding of assembly instructions (default)"), 1526763122adSAvi Kivity OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, 1527763122adSAvi Kivity "Enable kernel symbol demangling"), 1528ee7a112fSSong Liu OPT_BOOLEAN(0, "no-bpf-event", &top.record_opts.no_bpf_event, "do not record bpf events"), 1529f178fd2dSArnaldo Carvalho de Melo OPT_STRING(0, "objdump", &top.annotation_opts.objdump_path, "path", 15300d3942dbSSukadev Bhattiprolu "objdump binary to use for disassembly and annotations"), 1531a47e843eSArnaldo Carvalho de Melo OPT_STRING('M', "disassembler-style", &top.annotation_opts.disassembler_style, "disassembler style", 153264c6f0c7SArnaldo Carvalho de Melo "Specify disassembler style (e.g. -M intel for intel syntax)"), 15333b0b16bfSAndi Kleen OPT_STRING(0, "prefix", &top.annotation_opts.prefix, "prefix", 15343b0b16bfSAndi Kleen "Add prefix to source file path names in programs (with --prefix-strip)"), 15353b0b16bfSAndi Kleen OPT_STRING(0, "prefix-strip", &top.annotation_opts.prefix_strip, "N", 15363b0b16bfSAndi Kleen "Strip first N entries of source file path name in programs (with --prefix)"), 15372376c67aSArnaldo Carvalho de Melo OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), 1538fa5df943SNamhyung Kim OPT_CALLBACK(0, "percent-limit", &top, "percent", 1539fa5df943SNamhyung Kim "Don't show entries under that percent", parse_percent_limit), 154033db4568SNamhyung Kim OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", 154133db4568SNamhyung Kim "How to display percentage of filtered entries", parse_filter_percentage), 1542cf59002fSNamhyung Kim OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, 1543cf59002fSNamhyung Kim "width[,width...]", 1544cf59002fSNamhyung Kim "don't try to adjust column width, use these fixed values"), 15453fcb10e4SMark Drayton OPT_UINTEGER(0, "proc-map-timeout", &proc_map_timeout, 15469d9cad76SKan Liang "per thread proc mmap processing timeout in ms"), 1547a18b027eSAndi Kleen OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack, 1548a18b027eSAndi Kleen "branch any", "sample any taken branches", 1549a18b027eSAndi Kleen parse_branch_stack), 1550a18b027eSAndi Kleen OPT_CALLBACK('j', "branch-filter", &opts->branch_stack, 1551a18b027eSAndi Kleen "branch filter mask", "branch stack filter modes", 1552a18b027eSAndi Kleen parse_branch_stack), 1553053a3989SNamhyung Kim OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, 1554053a3989SNamhyung Kim "Show raw trace event output (do not use print fmt or plugins)"), 1555c92fcfdeSNamhyung Kim OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy, 1556c92fcfdeSNamhyung Kim "Show entries in a hierarchy"), 15574e303fbeSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "overwrite", &top.record_opts.overwrite, 1558218d6111SArnaldo Carvalho de Melo "Use a backward ring buffer, default: no"), 1559868a8329SKrister Johansen OPT_BOOLEAN(0, "force", &symbol_conf.force, "don't complain, do it"), 15600c6b4994SKan Liang OPT_UINTEGER(0, "num-thread-synthesize", &top.nr_threads_synthesize, 15610c6b4994SKan Liang "number of thread to run event synthesize"), 156251f38242SJoshua Martinez OPT_CALLBACK('G', "cgroup", &top.evlist, "name", 156351f38242SJoshua Martinez "monitor event in cgroup name only", parse_cgroups), 1564a0c0a4acSNamhyung Kim OPT_BOOLEAN(0, "namespaces", &opts->record_namespaces, 1565a0c0a4acSNamhyung Kim "Record namespaces events"), 1566f382842fSNamhyung Kim OPT_BOOLEAN(0, "all-cgroups", &opts->record_cgroup, 1567f382842fSNamhyung Kim "Record cgroup events"), 1568df7deb2cSJin Yao OPT_INTEGER(0, "group-sort-idx", &symbol_conf.group_sort_idx, 1569df7deb2cSJin Yao "Sort the output by the event at the index n in group. " 1570df7deb2cSJin Yao "If n is invalid, sort by the first event. " 1571df7deb2cSJin Yao "WARNING: should be used on grouped events."), 157213e0c844SKan Liang OPT_BOOLEAN(0, "stitch-lbr", &top.stitch_lbr, 157313e0c844SKan Liang "Enable LBR callgraph stitching approach"), 157470943490SStephane Eranian #ifdef HAVE_LIBPFM 157570943490SStephane Eranian OPT_CALLBACK(0, "pfm-events", &top.evlist, "event", 157670943490SStephane Eranian "libpfm4 event selector. use 'perf list' to list available events", 157770943490SStephane Eranian parse_libpfm_events_option), 157870943490SStephane Eranian #endif 15792f53ae34SArnaldo Carvalho de Melo OPTS_EVSWITCH(&top.evswitch), 158086470930SIngo Molnar OPT_END() 158186470930SIngo Molnar }; 1582be772842SArnaldo Carvalho de Melo const char * const top_usage[] = { 1583be772842SArnaldo Carvalho de Melo "perf top [<options>]", 1584be772842SArnaldo Carvalho de Melo NULL 1585be772842SArnaldo Carvalho de Melo }; 1586a635fc51SArnaldo Carvalho de Melo int status = hists__init(); 1587a635fc51SArnaldo Carvalho de Melo 1588a635fc51SArnaldo Carvalho de Melo if (status < 0) 1589a635fc51SArnaldo Carvalho de Melo return status; 159086470930SIngo Molnar 1591982d410bSArnaldo Carvalho de Melo top.annotation_opts.min_pcnt = 5; 1592982d410bSArnaldo Carvalho de Melo top.annotation_opts.context = 4; 1593982d410bSArnaldo Carvalho de Melo 15940f98b11cSJiri Olsa top.evlist = evlist__new(); 15958c3e10ebSArnaldo Carvalho de Melo if (top.evlist == NULL) 1596361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1597361c99a6SArnaldo Carvalho de Melo 1598ecc4c561SArnaldo Carvalho de Melo status = perf_config(perf_top_config, &top); 1599ecc4c561SArnaldo Carvalho de Melo if (status) 1600ecc4c561SArnaldo Carvalho de Melo return status; 1601608127f7SArnaldo Carvalho de Melo /* 1602608127f7SArnaldo Carvalho de Melo * Since the per arch annotation init routine may need the cpuid, read 1603608127f7SArnaldo Carvalho de Melo * it here, since we are not getting this from the perf.data header. 1604608127f7SArnaldo Carvalho de Melo */ 1605608127f7SArnaldo Carvalho de Melo status = perf_env__read_cpuid(&perf_env); 1606608127f7SArnaldo Carvalho de Melo if (status) { 160761208e6eSArnaldo Carvalho de Melo /* 160861208e6eSArnaldo Carvalho de Melo * Some arches do not provide a get_cpuid(), so just use pr_debug, otherwise 16094d39c89fSIngo Molnar * warn the user explicitly. 161061208e6eSArnaldo Carvalho de Melo */ 161161208e6eSArnaldo Carvalho de Melo eprintf(status == ENOSYS ? 1 : 0, verbose, 161261208e6eSArnaldo Carvalho de Melo "Couldn't read the cpuid for this machine: %s\n", 1613608127f7SArnaldo Carvalho de Melo str_error_r(errno, errbuf, sizeof(errbuf))); 1614608127f7SArnaldo Carvalho de Melo } 1615608127f7SArnaldo Carvalho de Melo top.evlist->env = &perf_env; 1616eb853e80SJiri Olsa 161786470930SIngo Molnar argc = parse_options(argc, argv, options, top_usage, 0); 161886470930SIngo Molnar if (argc) 161986470930SIngo Molnar usage_with_options(top_usage, options); 162086470930SIngo Molnar 16217cc72553SJames Clark status = symbol__validate_sym_arguments(); 16227cc72553SJames Clark if (status) 16237cc72553SJames Clark goto out_delete_evlist; 16247cc72553SJames Clark 16253b0b16bfSAndi Kleen if (annotate_check_args(&top.annotation_opts) < 0) 16263b0b16bfSAndi Kleen goto out_delete_evlist; 16273b0b16bfSAndi Kleen 16286484d2f9SJiri Olsa if (!top.evlist->core.nr_entries && 1629e251abeeSArnaldo Carvalho de Melo evlist__add_default(top.evlist) < 0) { 163054f8f403SNamhyung Kim pr_err("Not enough memory for event selector list\n"); 163154f8f403SNamhyung Kim goto out_delete_evlist; 163254f8f403SNamhyung Kim } 163354f8f403SNamhyung Kim 16342f53ae34SArnaldo Carvalho de Melo status = evswitch__init(&top.evswitch, top.evlist, stderr); 16352f53ae34SArnaldo Carvalho de Melo if (status) 16362f53ae34SArnaldo Carvalho de Melo goto out_delete_evlist; 16372f53ae34SArnaldo Carvalho de Melo 1638c92fcfdeSNamhyung Kim if (symbol_conf.report_hierarchy) { 1639c92fcfdeSNamhyung Kim /* disable incompatible options */ 1640c92fcfdeSNamhyung Kim symbol_conf.event_group = false; 1641c92fcfdeSNamhyung Kim symbol_conf.cumulate_callchain = false; 1642c92fcfdeSNamhyung Kim 1643c92fcfdeSNamhyung Kim if (field_order) { 1644c92fcfdeSNamhyung Kim pr_err("Error: --hierarchy and --fields options cannot be used together\n"); 1645c92fcfdeSNamhyung Kim parse_options_usage(top_usage, options, "fields", 0); 1646c92fcfdeSNamhyung Kim parse_options_usage(NULL, options, "hierarchy", 0); 1647c92fcfdeSNamhyung Kim goto out_delete_evlist; 1648c92fcfdeSNamhyung Kim } 1649c92fcfdeSNamhyung Kim } 1650c92fcfdeSNamhyung Kim 165113e0c844SKan Liang if (top.stitch_lbr && !(callchain_param.record_mode == CALLCHAIN_LBR)) { 165213e0c844SKan Liang pr_err("Error: --stitch-lbr must be used with --call-graph lbr\n"); 165313e0c844SKan Liang goto out_delete_evlist; 165413e0c844SKan Liang } 165513e0c844SKan Liang 165651f38242SJoshua Martinez if (nr_cgroups > 0 && opts->record_cgroup) { 165751f38242SJoshua Martinez pr_err("--cgroup and --all-cgroups cannot be used together\n"); 165851f38242SJoshua Martinez goto out_delete_evlist; 165951f38242SJoshua Martinez } 166051f38242SJoshua Martinez 1661590ac60dSJin Yao if (opts->branch_stack && callchain_param.enabled) 1662590ac60dSJin Yao symbol_conf.show_branchflag_count = true; 1663590ac60dSJin Yao 1664512ae1bdSNamhyung Kim sort__mode = SORT_MODE__TOP; 16653a5714f8SNamhyung Kim /* display thread wants entries to be collapsed in a different tree */ 166652225036SJiri Olsa perf_hpp_list.need_collapse = 1; 16673a5714f8SNamhyung Kim 16683ee60c3bSArnaldo Carvalho de Melo if (top.use_stdio) 16693ee60c3bSArnaldo Carvalho de Melo use_browser = 0; 16703402ae0aSIan Rogers #ifdef HAVE_SLANG_SUPPORT 16713ee60c3bSArnaldo Carvalho de Melo else if (top.use_tui) 16723ee60c3bSArnaldo Carvalho de Melo use_browser = 1; 16733402ae0aSIan Rogers #endif 16743ee60c3bSArnaldo Carvalho de Melo 16753ee60c3bSArnaldo Carvalho de Melo setup_browser(false); 16763ee60c3bSArnaldo Carvalho de Melo 167740184c46SNamhyung Kim if (setup_sorting(top.evlist) < 0) { 16786fe8c26dSNamhyung Kim if (sort_order) 16796fe8c26dSNamhyung Kim parse_options_usage(top_usage, options, "s", 1); 16806fe8c26dSNamhyung Kim if (field_order) 16816fe8c26dSNamhyung Kim parse_options_usage(sort_order ? NULL : top_usage, 16826fe8c26dSNamhyung Kim options, "fields", 0); 16836fe8c26dSNamhyung Kim goto out_delete_evlist; 16846fe8c26dSNamhyung Kim } 168522af969eSNamhyung Kim 1686602ad878SArnaldo Carvalho de Melo status = target__validate(target); 168716ad2ffbSNamhyung Kim if (status) { 1688602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1689ea432a8bSIngo Molnar ui__warning("%s\n", errbuf); 169016ad2ffbSNamhyung Kim } 16914bd0f2d2SNamhyung Kim 1692602ad878SArnaldo Carvalho de Melo status = target__parse_uid(target); 169316ad2ffbSNamhyung Kim if (status) { 169416ad2ffbSNamhyung Kim int saved_errno = errno; 169516ad2ffbSNamhyung Kim 1696602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1697ea432a8bSIngo Molnar ui__error("%s\n", errbuf); 169816ad2ffbSNamhyung Kim 169916ad2ffbSNamhyung Kim status = -saved_errno; 17000d37aa34SArnaldo Carvalho de Melo goto out_delete_evlist; 170116ad2ffbSNamhyung Kim } 17020d37aa34SArnaldo Carvalho de Melo 1703602ad878SArnaldo Carvalho de Melo if (target__none(target)) 17042376c67aSArnaldo Carvalho de Melo target->system_wide = true; 170510b47d54SArnaldo Carvalho de Melo 17067748bb71SArnaldo Carvalho de Melo if (evlist__create_maps(top.evlist, target) < 0) { 1707f8a5c0b2SArnaldo Carvalho de Melo ui__error("Couldn't create thread/CPU maps: %s\n", 1708c8b5f2c9SArnaldo Carvalho de Melo errno == ENOENT ? "No such process" : str_error_r(errno, errbuf, sizeof(errbuf))); 1709f8a5c0b2SArnaldo Carvalho de Melo goto out_delete_evlist; 1710f8a5c0b2SArnaldo Carvalho de Melo } 17117e2ed097SArnaldo Carvalho de Melo 17128c3e10ebSArnaldo Carvalho de Melo if (top.delay_secs < 1) 17138c3e10ebSArnaldo Carvalho de Melo top.delay_secs = 1; 171486470930SIngo Molnar 1715b4006796SArnaldo Carvalho de Melo if (record_opts__config(opts)) { 17162376c67aSArnaldo Carvalho de Melo status = -EINVAL; 171703ad9747SArnaldo Carvalho de Melo goto out_delete_evlist; 171869aad6f1SArnaldo Carvalho de Melo } 171969aad6f1SArnaldo Carvalho de Melo 1720515dbe48SJiri Olsa top.sym_evsel = evlist__first(top.evlist); 1721cc841580SArnaldo Carvalho de Melo 1722e3815264SArnaldo Carvalho de Melo if (!callchain_param.enabled) { 17231432ec34SNamhyung Kim symbol_conf.cumulate_callchain = false; 17241432ec34SNamhyung Kim perf_hpp__cancel_cumulate(); 17251432ec34SNamhyung Kim } 17261432ec34SNamhyung Kim 1727792aeafaSNamhyung Kim if (symbol_conf.cumulate_callchain && !callchain_param.order_set) 1728792aeafaSNamhyung Kim callchain_param.order = ORDER_CALLER; 1729792aeafaSNamhyung Kim 1730b01141f4SArnaldo Carvalho de Melo status = symbol__annotation_init(); 1731b01141f4SArnaldo Carvalho de Melo if (status < 0) 1732b01141f4SArnaldo Carvalho de Melo goto out_delete_evlist; 173369aad6f1SArnaldo Carvalho de Melo 17347384083bSRavi Bangoria annotation_config__init(&top.annotation_opts); 17357f0b6fdeSArnaldo Carvalho de Melo 173669aad6f1SArnaldo Carvalho de Melo symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); 173770c819e4SChangbin Du status = symbol__init(NULL); 173870c819e4SChangbin Du if (status < 0) 173970c819e4SChangbin Du goto out_delete_evlist; 174069aad6f1SArnaldo Carvalho de Melo 174108e71542SNamhyung Kim sort__setup_elide(stdout); 1742ab81f3fdSArnaldo Carvalho de Melo 17431758af10SArnaldo Carvalho de Melo get_term_dimensions(&top.winsize); 17448c3e10ebSArnaldo Carvalho de Melo if (top.print_entries == 0) { 17451758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(&top); 1746244a1086SJiri Olsa signal(SIGWINCH, winch_sig); 17473b6ed988SArnaldo Carvalho de Melo } 17483b6ed988SArnaldo Carvalho de Melo 17492681bd85SNamhyung Kim top.session = perf_session__new(NULL, NULL); 17506ef81c55SMamatha Inamdar if (IS_ERR(top.session)) { 17516ef81c55SMamatha Inamdar status = PTR_ERR(top.session); 17520dba9e4bSChangbin Du goto out_delete_evlist; 17530dba9e4bSChangbin Du } 17540dba9e4bSChangbin Du 17550c5f1accSTiezhu Yang #ifdef HAVE_LIBBPF_SUPPORT 1756b38d85efSArnaldo Carvalho de Melo if (!top.record_opts.no_bpf_event) { 1757b38d85efSArnaldo Carvalho de Melo top.sb_evlist = evlist__new(); 1758b38d85efSArnaldo Carvalho de Melo 1759b38d85efSArnaldo Carvalho de Melo if (top.sb_evlist == NULL) { 1760b38d85efSArnaldo Carvalho de Melo pr_err("Couldn't create side band evlist.\n."); 1761b38d85efSArnaldo Carvalho de Melo goto out_delete_evlist; 1762b38d85efSArnaldo Carvalho de Melo } 1763b38d85efSArnaldo Carvalho de Melo 1764b38d85efSArnaldo Carvalho de Melo if (evlist__add_bpf_sb_event(top.sb_evlist, &perf_env)) { 1765b38d85efSArnaldo Carvalho de Melo pr_err("Couldn't ask for PERF_RECORD_BPF_EVENT side band events.\n."); 1766b38d85efSArnaldo Carvalho de Melo goto out_delete_evlist; 1767b38d85efSArnaldo Carvalho de Melo } 1768b38d85efSArnaldo Carvalho de Melo } 17690c5f1accSTiezhu Yang #endif 1770d56354dcSSong Liu 177108c83997SArnaldo Carvalho de Melo if (evlist__start_sb_thread(top.sb_evlist, target)) { 1772657ee553SSong Liu pr_debug("Couldn't start the BPF side band thread:\nBPF programs starting from now on won't be annotatable\n"); 1773657ee553SSong Liu opts->no_bpf_event = true; 1774657ee553SSong Liu } 1775657ee553SSong Liu 17761758af10SArnaldo Carvalho de Melo status = __cmd_top(&top); 1777806fb630SArnaldo Carvalho de Melo 1778657ee553SSong Liu if (!opts->no_bpf_event) 177908c83997SArnaldo Carvalho de Melo evlist__stop_sb_thread(top.sb_evlist); 1780657ee553SSong Liu 17810d37aa34SArnaldo Carvalho de Melo out_delete_evlist: 1782c12995a5SJiri Olsa evlist__delete(top.evlist); 17830dba9e4bSChangbin Du perf_session__delete(top.session); 178469aad6f1SArnaldo Carvalho de Melo 178569aad6f1SArnaldo Carvalho de Melo return status; 178686470930SIngo Molnar } 1787