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" 2541840d21STaeung Song #include "util/config.h" 2686470930SIngo Molnar #include "util/color.h" 27361c99a6SArnaldo Carvalho de Melo #include "util/evlist.h" 2869aad6f1SArnaldo Carvalho de Melo #include "util/evsel.h" 295ab8c689SArnaldo Carvalho de Melo #include "util/event.h" 30b0a7d1a0SArnaldo Carvalho de Melo #include "util/machine.h" 311101f69aSArnaldo Carvalho de Melo #include "util/map.h" 32b3165f41SArnaldo Carvalho de Melo #include "util/session.h" 33b3165f41SArnaldo Carvalho de Melo #include "util/symbol.h" 34439d473bSArnaldo Carvalho de Melo #include "util/thread.h" 35fd78260bSArnaldo Carvalho de Melo #include "util/thread_map.h" 368c3e10ebSArnaldo Carvalho de Melo #include "util/top.h" 3743cbcd8aSArnaldo Carvalho de Melo #include <linux/rbtree.h> 384b6ab94eSJosh Poimboeuf #include <subcmd/parse-options.h> 3986470930SIngo Molnar #include "util/parse-events.h" 40a12b51c4SPaul Mackerras #include "util/cpumap.h" 4169aad6f1SArnaldo Carvalho de Melo #include "util/xyarray.h" 42ab81f3fdSArnaldo Carvalho de Melo #include "util/sort.h" 436a9fa4e3SArnaldo Carvalho de Melo #include "util/string2.h" 44b0742e90SArnaldo Carvalho de Melo #include "util/term.h" 456b118e92SDavid Ahern #include "util/intlist.h" 46a18b027eSAndi Kleen #include "util/parse-branch-options.h" 470d3942dbSSukadev Bhattiprolu #include "arch/common.h" 4886470930SIngo Molnar 498f28827aSFrederic Weisbecker #include "util/debug.h" 5016c66bc1SJiri Olsa #include "util/ordered-events.h" 518f28827aSFrederic Weisbecker 5286470930SIngo Molnar #include <assert.h> 5331d68e7bSArnaldo Carvalho de Melo #include <elf.h> 5486470930SIngo Molnar #include <fcntl.h> 5586470930SIngo Molnar 5686470930SIngo Molnar #include <stdio.h> 57923c42c1SMike Galbraith #include <termios.h> 58923c42c1SMike Galbraith #include <unistd.h> 599486aa38SArnaldo Carvalho de Melo #include <inttypes.h> 6086470930SIngo Molnar 6186470930SIngo Molnar #include <errno.h> 6286470930SIngo Molnar #include <time.h> 6386470930SIngo Molnar #include <sched.h> 649607ad3aSArnaldo Carvalho de Melo #include <signal.h> 6586470930SIngo Molnar 6686470930SIngo Molnar #include <sys/syscall.h> 6786470930SIngo Molnar #include <sys/ioctl.h> 68a8fa4960SArnaldo Carvalho de Melo #include <poll.h> 6986470930SIngo Molnar #include <sys/prctl.h> 7086470930SIngo Molnar #include <sys/wait.h> 7186470930SIngo Molnar #include <sys/uio.h> 7231d68e7bSArnaldo Carvalho de Melo #include <sys/utsname.h> 7386470930SIngo Molnar #include <sys/mman.h> 7486470930SIngo Molnar 75531d2410SArnaldo Carvalho de Melo #include <linux/stringify.h> 76b9c4b0f4SArnaldo Carvalho de Melo #include <linux/time64.h> 7786470930SIngo Molnar #include <linux/types.h> 7886470930SIngo Molnar 793052ba56SArnaldo Carvalho de Melo #include <linux/ctype.h> 803d689ed6SArnaldo Carvalho de Melo 8111859e82SArnaldo Carvalho de Melo static volatile int done; 82b135e5eeSJiri Olsa static volatile int resize; 8311859e82SArnaldo Carvalho de Melo 84933cbb1cSNamhyung Kim #define HEADER_LINE_NR 5 85933cbb1cSNamhyung Kim 861758af10SArnaldo Carvalho de Melo static void perf_top__update_print_entries(struct perf_top *top) 873b6ed988SArnaldo Carvalho de Melo { 88933cbb1cSNamhyung Kim top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; 893b6ed988SArnaldo Carvalho de Melo } 903b6ed988SArnaldo Carvalho de Melo 91244a1086SJiri Olsa static void winch_sig(int sig __maybe_unused) 923b6ed988SArnaldo Carvalho de Melo { 93b135e5eeSJiri Olsa resize = 1; 94b135e5eeSJiri Olsa } 951758af10SArnaldo Carvalho de Melo 96b135e5eeSJiri Olsa static void perf_top__resize(struct perf_top *top) 97b135e5eeSJiri Olsa { 981758af10SArnaldo Carvalho de Melo get_term_dimensions(&top->winsize); 991758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(top); 1003b6ed988SArnaldo Carvalho de Melo } 1013b6ed988SArnaldo Carvalho de Melo 1021758af10SArnaldo Carvalho de Melo static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) 103923c42c1SMike Galbraith { 10432dcd021SJiri Olsa struct evsel *evsel; 105923c42c1SMike Galbraith struct symbol *sym; 106ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 107439d473bSArnaldo Carvalho de Melo struct map *map; 10836532461SArnaldo Carvalho de Melo int err = -1; 109923c42c1SMike Galbraith 110ab81f3fdSArnaldo Carvalho de Melo if (!he || !he->ms.sym) 111b0a9ab62SArnaldo Carvalho de Melo return -1; 112b0a9ab62SArnaldo Carvalho de Melo 113111442cfSLeo Yan evsel = hists_to_evsel(he->hists); 114111442cfSLeo Yan 115ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 116ab81f3fdSArnaldo Carvalho de Melo map = he->ms.map; 117b0a9ab62SArnaldo Carvalho de Melo 118b0a9ab62SArnaldo Carvalho de Melo /* 119b0a9ab62SArnaldo Carvalho de Melo * We can't annotate with just /proc/kallsyms 120b0a9ab62SArnaldo Carvalho de Melo */ 121bbb7f846SAdrian Hunter if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && 122bbb7f846SAdrian Hunter !dso__is_kcore(map->dso)) { 123ce6f4fabSArnaldo Carvalho de Melo pr_err("Can't annotate %s: No vmlinux file was found in the " 124ce6f4fabSArnaldo Carvalho de Melo "path\n", sym->name); 125ce6f4fabSArnaldo Carvalho de Melo sleep(1); 126b0a9ab62SArnaldo Carvalho de Melo return -1; 127b269876cSArnaldo Carvalho de Melo } 128b269876cSArnaldo Carvalho de Melo 129ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 130ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 131923c42c1SMike Galbraith 1326484d2f9SJiri Olsa if (!symbol__hists(sym, top->evlist->core.nr_entries)) { 133c97cf422SArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 13436532461SArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 13536532461SArnaldo Carvalho de Melo sym->name); 136ce6f4fabSArnaldo Carvalho de Melo sleep(1); 137c97cf422SArnaldo Carvalho de Melo return err; 138923c42c1SMike Galbraith } 13936532461SArnaldo Carvalho de Melo 140380195e2SArnaldo Carvalho de Melo err = symbol__annotate(sym, map, evsel, 0, &top->annotation_opts, NULL); 14136532461SArnaldo Carvalho de Melo if (err == 0) { 1421758af10SArnaldo Carvalho de Melo top->sym_filter_entry = he; 143ee51d851SArnaldo Carvalho de Melo } else { 144ee51d851SArnaldo Carvalho de Melo char msg[BUFSIZ]; 145ee51d851SArnaldo Carvalho de Melo symbol__strerror_disassemble(sym, map, err, msg, sizeof(msg)); 146ee51d851SArnaldo Carvalho de Melo pr_err("Couldn't annotate %s: %s\n", sym->name, msg); 14736532461SArnaldo Carvalho de Melo } 148c97cf422SArnaldo Carvalho de Melo 149ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 15036532461SArnaldo Carvalho de Melo return err; 151923c42c1SMike Galbraith } 152923c42c1SMike Galbraith 153ab81f3fdSArnaldo Carvalho de Melo static void __zero_source_counters(struct hist_entry *he) 154923c42c1SMike Galbraith { 155ab81f3fdSArnaldo Carvalho de Melo struct symbol *sym = he->ms.sym; 15636532461SArnaldo Carvalho de Melo symbol__annotate_zero_histograms(sym); 157923c42c1SMike Galbraith } 158923c42c1SMike Galbraith 15931d68e7bSArnaldo Carvalho de Melo static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) 16031d68e7bSArnaldo Carvalho de Melo { 16131d68e7bSArnaldo Carvalho de Melo struct utsname uts; 16231d68e7bSArnaldo Carvalho de Melo int err = uname(&uts); 16331d68e7bSArnaldo Carvalho de Melo 16431d68e7bSArnaldo Carvalho de Melo ui__warning("Out of bounds address found:\n\n" 16531d68e7bSArnaldo Carvalho de Melo "Addr: %" PRIx64 "\n" 16631d68e7bSArnaldo Carvalho de Melo "DSO: %s %c\n" 16731d68e7bSArnaldo Carvalho de Melo "Map: %" PRIx64 "-%" PRIx64 "\n" 16831d68e7bSArnaldo Carvalho de Melo "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" 16931d68e7bSArnaldo Carvalho de Melo "Arch: %s\n" 17031d68e7bSArnaldo Carvalho de Melo "Kernel: %s\n" 17131d68e7bSArnaldo Carvalho de Melo "Tools: %s\n\n" 17231d68e7bSArnaldo Carvalho de Melo "Not all samples will be on the annotation output.\n\n" 17331d68e7bSArnaldo Carvalho de Melo "Please report to linux-kernel@vger.kernel.org\n", 17431d68e7bSArnaldo Carvalho de Melo ip, map->dso->long_name, dso__symtab_origin(map->dso), 17531d68e7bSArnaldo Carvalho de Melo map->start, map->end, sym->start, sym->end, 17631d68e7bSArnaldo Carvalho de Melo sym->binding == STB_GLOBAL ? 'g' : 17731d68e7bSArnaldo Carvalho de Melo sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, 17831d68e7bSArnaldo Carvalho de Melo err ? "[unknown]" : uts.machine, 17931d68e7bSArnaldo Carvalho de Melo err ? "[unknown]" : uts.release, perf_version_string); 18031d68e7bSArnaldo Carvalho de Melo if (use_browser <= 0) 18131d68e7bSArnaldo Carvalho de Melo sleep(5); 18231d68e7bSArnaldo Carvalho de Melo 18331d68e7bSArnaldo Carvalho de Melo map->erange_warned = true; 18431d68e7bSArnaldo Carvalho de Melo } 18531d68e7bSArnaldo Carvalho de Melo 1861758af10SArnaldo Carvalho de Melo static void perf_top__record_precise_ip(struct perf_top *top, 1871758af10SArnaldo Carvalho de Melo struct hist_entry *he, 188bab89f6aSTaeung Song struct perf_sample *sample, 18932dcd021SJiri Olsa struct evsel *evsel, u64 ip) 190923c42c1SMike Galbraith { 191ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 192beefb8d0SNamhyung Kim struct symbol *sym = he->ms.sym; 19348c65bdaSNamhyung Kim int err = 0; 194ce6f4fabSArnaldo Carvalho de Melo 195beefb8d0SNamhyung Kim if (sym == NULL || (use_browser == 0 && 196beefb8d0SNamhyung Kim (top->sym_filter_entry == NULL || 197beefb8d0SNamhyung Kim top->sym_filter_entry->ms.sym != sym))) 198923c42c1SMike Galbraith return; 199923c42c1SMike Galbraith 200ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 201ce6f4fabSArnaldo Carvalho de Melo 202ce6f4fabSArnaldo Carvalho de Melo if (pthread_mutex_trylock(¬es->lock)) 203923c42c1SMike Galbraith return; 204923c42c1SMike Galbraith 205e345f3bdSArnaldo Carvalho de Melo err = hist_entry__inc_addr_samples(he, sample, evsel, ip); 206923c42c1SMike Galbraith 207ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 20831d68e7bSArnaldo Carvalho de Melo 209151ee834SNamhyung Kim if (unlikely(err)) { 2107c50391fSNamhyung Kim /* 2117c50391fSNamhyung Kim * This function is now called with he->hists->lock held. 2127c50391fSNamhyung Kim * Release it before going to sleep. 2137c50391fSNamhyung Kim */ 2147c50391fSNamhyung Kim pthread_mutex_unlock(&he->hists->lock); 2157c50391fSNamhyung Kim 21631d68e7bSArnaldo Carvalho de Melo if (err == -ERANGE && !he->ms.map->erange_warned) 21731d68e7bSArnaldo Carvalho de Melo ui__warn_map_erange(he->ms.map, sym, ip); 218b66d8c0cSArnaldo Carvalho de Melo else if (err == -ENOMEM) { 219b66d8c0cSArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 220b66d8c0cSArnaldo Carvalho de Melo sym->name); 221b66d8c0cSArnaldo Carvalho de Melo sleep(1); 222b66d8c0cSArnaldo Carvalho de Melo } 2237c50391fSNamhyung Kim 2247c50391fSNamhyung Kim pthread_mutex_lock(&he->hists->lock); 225923c42c1SMike Galbraith } 226151ee834SNamhyung Kim } 227923c42c1SMike Galbraith 2281758af10SArnaldo Carvalho de Melo static void perf_top__show_details(struct perf_top *top) 229923c42c1SMike Galbraith { 2301758af10SArnaldo Carvalho de Melo struct hist_entry *he = top->sym_filter_entry; 23132dcd021SJiri Olsa struct evsel *evsel; 232ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 233923c42c1SMike Galbraith struct symbol *symbol; 23436532461SArnaldo Carvalho de Melo int more; 235923c42c1SMike Galbraith 236ab81f3fdSArnaldo Carvalho de Melo if (!he) 237923c42c1SMike Galbraith return; 238923c42c1SMike Galbraith 239111442cfSLeo Yan evsel = hists_to_evsel(he->hists); 240111442cfSLeo Yan 241ab81f3fdSArnaldo Carvalho de Melo symbol = he->ms.sym; 242ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(symbol); 243ce6f4fabSArnaldo Carvalho de Melo 244ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 245ce6f4fabSArnaldo Carvalho de Melo 246f681d593SJiri Olsa symbol__calc_percent(symbol, evsel); 247f681d593SJiri Olsa 248ce6f4fabSArnaldo Carvalho de Melo if (notes->src == NULL) 249ce6f4fabSArnaldo Carvalho de Melo goto out_unlock; 250923c42c1SMike Galbraith 2517289f83cSArnaldo Carvalho de Melo printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); 252982d410bSArnaldo Carvalho de Melo printf(" Events Pcnt (>=%d%%)\n", top->annotation_opts.min_pcnt); 253923c42c1SMike Galbraith 254982d410bSArnaldo Carvalho de Melo more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, &top->annotation_opts); 2555d484f99SArnaldo Carvalho de Melo 2565d484f99SArnaldo Carvalho de Melo if (top->evlist->enabled) { 2571758af10SArnaldo Carvalho de Melo if (top->zero) 2581758af10SArnaldo Carvalho de Melo symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); 25936532461SArnaldo Carvalho de Melo else 2601758af10SArnaldo Carvalho de Melo symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); 2615d484f99SArnaldo Carvalho de Melo } 26236532461SArnaldo Carvalho de Melo if (more != 0) 263923c42c1SMike Galbraith printf("%d lines not displayed, maybe increase display entries [e]\n", more); 264ce6f4fabSArnaldo Carvalho de Melo out_unlock: 265ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 266923c42c1SMike Galbraith } 26786470930SIngo Molnar 2681758af10SArnaldo Carvalho de Melo static void perf_top__print_sym_table(struct perf_top *top) 26986470930SIngo Molnar { 2708c3e10ebSArnaldo Carvalho de Melo char bf[160]; 2718c3e10ebSArnaldo Carvalho de Melo int printed = 0; 2721758af10SArnaldo Carvalho de Melo const int win_width = top->winsize.ws_col - 1; 27332dcd021SJiri Olsa struct evsel *evsel = top->sym_evsel; 274452ce03bSJiri Olsa struct hists *hists = evsel__hists(evsel); 27586470930SIngo Molnar 27686470930SIngo Molnar puts(CONSOLE_CLEAR); 27786470930SIngo Molnar 2781758af10SArnaldo Carvalho de Melo perf_top__header_snprintf(top, bf, sizeof(bf)); 2798c3e10ebSArnaldo Carvalho de Melo printf("%s\n", bf); 28086470930SIngo Molnar 2811a105f74SArnaldo Carvalho de Melo printf("%-*.*s\n", win_width, win_width, graph_dotted_line); 28286470930SIngo Molnar 283a1ff5b05SKan Liang if (!top->record_opts.overwrite && 284a1ff5b05SKan Liang (hists->stats.nr_lost_warned != 285a1ff5b05SKan Liang hists->stats.nr_events[PERF_RECORD_LOST])) { 2864ea062edSArnaldo Carvalho de Melo hists->stats.nr_lost_warned = 2874ea062edSArnaldo Carvalho de Melo hists->stats.nr_events[PERF_RECORD_LOST]; 2887b27509fSArnaldo Carvalho de Melo color_fprintf(stdout, PERF_COLOR_RED, 2897b27509fSArnaldo Carvalho de Melo "WARNING: LOST %d chunks, Check IO/CPU overload", 2904ea062edSArnaldo Carvalho de Melo hists->stats.nr_lost_warned); 291ab81f3fdSArnaldo Carvalho de Melo ++printed; 29293fc64f1SArnaldo Carvalho de Melo } 29393fc64f1SArnaldo Carvalho de Melo 2941758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 2951758af10SArnaldo Carvalho de Melo perf_top__show_details(top); 296923c42c1SMike Galbraith return; 297923c42c1SMike Galbraith } 298923c42c1SMike Galbraith 2995d484f99SArnaldo Carvalho de Melo if (top->evlist->enabled) { 300701937bdSNamhyung Kim if (top->zero) { 3014ea062edSArnaldo Carvalho de Melo hists__delete_entries(hists); 302701937bdSNamhyung Kim } else { 3034ea062edSArnaldo Carvalho de Melo hists__decay_entries(hists, top->hide_user_symbols, 3041758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols); 305701937bdSNamhyung Kim } 3065d484f99SArnaldo Carvalho de Melo } 307701937bdSNamhyung Kim 3084ea062edSArnaldo Carvalho de Melo hists__collapse_resort(hists, NULL); 309452ce03bSJiri Olsa perf_evsel__output_resort(evsel, NULL); 310701937bdSNamhyung Kim 3114ea062edSArnaldo Carvalho de Melo hists__output_recalc_col_len(hists, top->print_entries - printed); 3121a105f74SArnaldo Carvalho de Melo putchar('\n'); 3134ea062edSArnaldo Carvalho de Melo hists__fprintf(hists, false, top->print_entries - printed, win_width, 314e9de7e2fSArnaldo Carvalho de Melo top->min_percent, stdout, !symbol_conf.use_callchain); 31586470930SIngo Molnar } 31686470930SIngo Molnar 317923c42c1SMike Galbraith static void prompt_integer(int *target, const char *msg) 318923c42c1SMike Galbraith { 319923c42c1SMike Galbraith char *buf = malloc(0), *p; 320923c42c1SMike Galbraith size_t dummy = 0; 321923c42c1SMike Galbraith int tmp; 322923c42c1SMike Galbraith 323923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 324923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 325923c42c1SMike Galbraith return; 326923c42c1SMike Galbraith 327923c42c1SMike Galbraith p = strchr(buf, '\n'); 328923c42c1SMike Galbraith if (p) 329923c42c1SMike Galbraith *p = 0; 330923c42c1SMike Galbraith 331923c42c1SMike Galbraith p = buf; 332923c42c1SMike Galbraith while(*p) { 333923c42c1SMike Galbraith if (!isdigit(*p)) 334923c42c1SMike Galbraith goto out_free; 335923c42c1SMike Galbraith p++; 336923c42c1SMike Galbraith } 337923c42c1SMike Galbraith tmp = strtoul(buf, NULL, 10); 338923c42c1SMike Galbraith *target = tmp; 339923c42c1SMike Galbraith out_free: 340923c42c1SMike Galbraith free(buf); 341923c42c1SMike Galbraith } 342923c42c1SMike Galbraith 343923c42c1SMike Galbraith static void prompt_percent(int *target, const char *msg) 344923c42c1SMike Galbraith { 345923c42c1SMike Galbraith int tmp = 0; 346923c42c1SMike Galbraith 347923c42c1SMike Galbraith prompt_integer(&tmp, msg); 348923c42c1SMike Galbraith if (tmp >= 0 && tmp <= 100) 349923c42c1SMike Galbraith *target = tmp; 350923c42c1SMike Galbraith } 351923c42c1SMike Galbraith 3521758af10SArnaldo Carvalho de Melo static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) 353923c42c1SMike Galbraith { 354923c42c1SMike Galbraith char *buf = malloc(0), *p; 3551758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; 3564ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(top->sym_evsel); 357ab81f3fdSArnaldo Carvalho de Melo struct rb_node *next; 358923c42c1SMike Galbraith size_t dummy = 0; 359923c42c1SMike Galbraith 360923c42c1SMike Galbraith /* zero counters of active symbol */ 361923c42c1SMike Galbraith if (syme) { 362923c42c1SMike Galbraith __zero_source_counters(syme); 3631758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 364923c42c1SMike Galbraith } 365923c42c1SMike Galbraith 366923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 367923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 368923c42c1SMike Galbraith goto out_free; 369923c42c1SMike Galbraith 370923c42c1SMike Galbraith p = strchr(buf, '\n'); 371923c42c1SMike Galbraith if (p) 372923c42c1SMike Galbraith *p = 0; 373923c42c1SMike Galbraith 3742eb3d689SDavidlohr Bueso next = rb_first_cached(&hists->entries); 375ab81f3fdSArnaldo Carvalho de Melo while (next) { 376ab81f3fdSArnaldo Carvalho de Melo n = rb_entry(next, struct hist_entry, rb_node); 377ab81f3fdSArnaldo Carvalho de Melo if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { 378ab81f3fdSArnaldo Carvalho de Melo found = n; 379923c42c1SMike Galbraith break; 380923c42c1SMike Galbraith } 381ab81f3fdSArnaldo Carvalho de Melo next = rb_next(&n->rb_node); 382923c42c1SMike Galbraith } 383923c42c1SMike Galbraith 384923c42c1SMike Galbraith if (!found) { 38566aeb6d5SKirill Smelkov fprintf(stderr, "Sorry, %s is not active.\n", buf); 386923c42c1SMike Galbraith sleep(1); 387923c42c1SMike Galbraith } else 3881758af10SArnaldo Carvalho de Melo perf_top__parse_source(top, found); 389923c42c1SMike Galbraith 390923c42c1SMike Galbraith out_free: 391923c42c1SMike Galbraith free(buf); 392923c42c1SMike Galbraith } 393923c42c1SMike Galbraith 3941758af10SArnaldo Carvalho de Melo static void perf_top__print_mapped_keys(struct perf_top *top) 395923c42c1SMike Galbraith { 396091bd2e9SMike Galbraith char *name = NULL; 397091bd2e9SMike Galbraith 3981758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 3991758af10SArnaldo Carvalho de Melo struct symbol *sym = top->sym_filter_entry->ms.sym; 400091bd2e9SMike Galbraith name = sym->name; 401091bd2e9SMike Galbraith } 402091bd2e9SMike Galbraith 403091bd2e9SMike Galbraith fprintf(stdout, "\nMapped keys:\n"); 4041758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); 4051758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); 406091bd2e9SMike Galbraith 4076484d2f9SJiri Olsa if (top->evlist->core.nr_entries > 1) 4087289f83cSArnaldo Carvalho de Melo fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); 409091bd2e9SMike Galbraith 4101758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); 411091bd2e9SMike Galbraith 412982d410bSArnaldo Carvalho de Melo fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->annotation_opts.min_pcnt); 413091bd2e9SMike Galbraith fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); 414091bd2e9SMike Galbraith fprintf(stdout, "\t[S] stop annotation.\n"); 415091bd2e9SMike Galbraith 4168ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4178fce3743SSihyeon Jang "\t[K] hide kernel symbols. \t(%s)\n", 4181758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols ? "yes" : "no"); 4198ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4208ffcda17SArnaldo Carvalho de Melo "\t[U] hide user symbols. \t(%s)\n", 4211758af10SArnaldo Carvalho de Melo top->hide_user_symbols ? "yes" : "no"); 4221758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); 423091bd2e9SMike Galbraith fprintf(stdout, "\t[qQ] quit.\n"); 424091bd2e9SMike Galbraith } 425091bd2e9SMike Galbraith 4261758af10SArnaldo Carvalho de Melo static int perf_top__key_mapped(struct perf_top *top, int c) 427091bd2e9SMike Galbraith { 428091bd2e9SMike Galbraith switch (c) { 429091bd2e9SMike Galbraith case 'd': 430091bd2e9SMike Galbraith case 'e': 431091bd2e9SMike Galbraith case 'f': 432091bd2e9SMike Galbraith case 'z': 433091bd2e9SMike Galbraith case 'q': 434091bd2e9SMike Galbraith case 'Q': 4358ffcda17SArnaldo Carvalho de Melo case 'K': 4368ffcda17SArnaldo Carvalho de Melo case 'U': 4376cff0e8dSKirill Smelkov case 'F': 4386cff0e8dSKirill Smelkov case 's': 4396cff0e8dSKirill Smelkov case 'S': 440091bd2e9SMike Galbraith return 1; 441091bd2e9SMike Galbraith case 'E': 4426484d2f9SJiri Olsa return top->evlist->core.nr_entries > 1 ? 1 : 0; 44383a0944fSIngo Molnar default: 44483a0944fSIngo Molnar break; 445091bd2e9SMike Galbraith } 446091bd2e9SMike Galbraith 447091bd2e9SMike Galbraith return 0; 448923c42c1SMike Galbraith } 449923c42c1SMike Galbraith 45011859e82SArnaldo Carvalho de Melo static bool perf_top__handle_keypress(struct perf_top *top, int c) 451923c42c1SMike Galbraith { 45211859e82SArnaldo Carvalho de Melo bool ret = true; 45311859e82SArnaldo Carvalho de Melo 4541758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) { 455091bd2e9SMike Galbraith struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 4563969cc09SJiri Olsa struct termios save; 457091bd2e9SMike Galbraith 4581758af10SArnaldo Carvalho de Melo perf_top__print_mapped_keys(top); 459091bd2e9SMike Galbraith fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); 460091bd2e9SMike Galbraith fflush(stdout); 461091bd2e9SMike Galbraith 4623969cc09SJiri Olsa set_term_quiet_input(&save); 463091bd2e9SMike Galbraith 464091bd2e9SMike Galbraith poll(&stdin_poll, 1, -1); 465091bd2e9SMike Galbraith c = getc(stdin); 466091bd2e9SMike Galbraith 467091bd2e9SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 4681758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) 46911859e82SArnaldo Carvalho de Melo return ret; 470091bd2e9SMike Galbraith } 471091bd2e9SMike Galbraith 472923c42c1SMike Galbraith switch (c) { 473923c42c1SMike Galbraith case 'd': 4741758af10SArnaldo Carvalho de Melo prompt_integer(&top->delay_secs, "Enter display delay"); 4751758af10SArnaldo Carvalho de Melo if (top->delay_secs < 1) 4761758af10SArnaldo Carvalho de Melo top->delay_secs = 1; 477923c42c1SMike Galbraith break; 478923c42c1SMike Galbraith case 'e': 4791758af10SArnaldo Carvalho de Melo prompt_integer(&top->print_entries, "Enter display entries (lines)"); 4801758af10SArnaldo Carvalho de Melo if (top->print_entries == 0) { 481b135e5eeSJiri Olsa perf_top__resize(top); 482244a1086SJiri Olsa signal(SIGWINCH, winch_sig); 483509605dbSStephane Eranian } else { 4843b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, SIG_DFL); 485509605dbSStephane Eranian } 486923c42c1SMike Galbraith break; 487923c42c1SMike Galbraith case 'E': 4886484d2f9SJiri Olsa if (top->evlist->core.nr_entries > 1) { 489ce2d17caSAkihiro Nagai /* Select 0 as the default event: */ 490ce2d17caSAkihiro Nagai int counter = 0; 491ce2d17caSAkihiro Nagai 492923c42c1SMike Galbraith fprintf(stderr, "\nAvailable events:"); 49369aad6f1SArnaldo Carvalho de Melo 494e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(top->evlist, top->sym_evsel) 4957289f83cSArnaldo Carvalho de Melo fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); 496923c42c1SMike Galbraith 497ec52d976SArnaldo Carvalho de Melo prompt_integer(&counter, "Enter details event counter"); 498923c42c1SMike Galbraith 4996484d2f9SJiri Olsa if (counter >= top->evlist->core.nr_entries) { 5000c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 5017289f83cSArnaldo Carvalho de Melo fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); 502923c42c1SMike Galbraith sleep(1); 50369aad6f1SArnaldo Carvalho de Melo break; 504923c42c1SMike Galbraith } 505e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(top->evlist, top->sym_evsel) 5061758af10SArnaldo Carvalho de Melo if (top->sym_evsel->idx == counter) 50769aad6f1SArnaldo Carvalho de Melo break; 508ec52d976SArnaldo Carvalho de Melo } else 5090c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 510923c42c1SMike Galbraith break; 511923c42c1SMike Galbraith case 'f': 5121758af10SArnaldo Carvalho de Melo prompt_integer(&top->count_filter, "Enter display event count filter"); 513923c42c1SMike Galbraith break; 514923c42c1SMike Galbraith case 'F': 515982d410bSArnaldo Carvalho de Melo prompt_percent(&top->annotation_opts.min_pcnt, 5161758af10SArnaldo Carvalho de Melo "Enter details display event filter (percent)"); 517923c42c1SMike Galbraith break; 5188ffcda17SArnaldo Carvalho de Melo case 'K': 5191758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols = !top->hide_kernel_symbols; 5208ffcda17SArnaldo Carvalho de Melo break; 521923c42c1SMike Galbraith case 'q': 522923c42c1SMike Galbraith case 'Q': 523923c42c1SMike Galbraith printf("exiting.\n"); 5241758af10SArnaldo Carvalho de Melo if (top->dump_symtab) 5251758af10SArnaldo Carvalho de Melo perf_session__fprintf_dsos(top->session, stderr); 52611859e82SArnaldo Carvalho de Melo ret = false; 52711859e82SArnaldo Carvalho de Melo break; 528923c42c1SMike Galbraith case 's': 5291758af10SArnaldo Carvalho de Melo perf_top__prompt_symbol(top, "Enter details symbol"); 530923c42c1SMike Galbraith break; 531923c42c1SMike Galbraith case 'S': 5321758af10SArnaldo Carvalho de Melo if (!top->sym_filter_entry) 533923c42c1SMike Galbraith break; 534923c42c1SMike Galbraith else { 5351758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry; 536923c42c1SMike Galbraith 5371758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 538923c42c1SMike Galbraith __zero_source_counters(syme); 539923c42c1SMike Galbraith } 540923c42c1SMike Galbraith break; 5418ffcda17SArnaldo Carvalho de Melo case 'U': 5421758af10SArnaldo Carvalho de Melo top->hide_user_symbols = !top->hide_user_symbols; 5438ffcda17SArnaldo Carvalho de Melo break; 544923c42c1SMike Galbraith case 'z': 5451758af10SArnaldo Carvalho de Melo top->zero = !top->zero; 546923c42c1SMike Galbraith break; 54783a0944fSIngo Molnar default: 54883a0944fSIngo Molnar break; 549923c42c1SMike Galbraith } 55011859e82SArnaldo Carvalho de Melo 55111859e82SArnaldo Carvalho de Melo return ret; 552923c42c1SMike Galbraith } 553923c42c1SMike Galbraith 554ab81f3fdSArnaldo Carvalho de Melo static void perf_top__sort_new_samples(void *arg) 555ab81f3fdSArnaldo Carvalho de Melo { 556ab81f3fdSArnaldo Carvalho de Melo struct perf_top *t = arg; 55732dcd021SJiri Olsa struct evsel *evsel = t->sym_evsel; 5584ea062edSArnaldo Carvalho de Melo struct hists *hists; 5594ea062edSArnaldo Carvalho de Melo 560ab81f3fdSArnaldo Carvalho de Melo if (t->evlist->selected != NULL) 561ab81f3fdSArnaldo Carvalho de Melo t->sym_evsel = t->evlist->selected; 562ab81f3fdSArnaldo Carvalho de Melo 563452ce03bSJiri Olsa hists = evsel__hists(evsel); 5644ea062edSArnaldo Carvalho de Melo 5655d484f99SArnaldo Carvalho de Melo if (t->evlist->enabled) { 566701937bdSNamhyung Kim if (t->zero) { 5674ea062edSArnaldo Carvalho de Melo hists__delete_entries(hists); 568701937bdSNamhyung Kim } else { 5694ea062edSArnaldo Carvalho de Melo hists__decay_entries(hists, t->hide_user_symbols, 5701758af10SArnaldo Carvalho de Melo t->hide_kernel_symbols); 571ab81f3fdSArnaldo Carvalho de Melo } 5725d484f99SArnaldo Carvalho de Melo } 573ab81f3fdSArnaldo Carvalho de Melo 5744ea062edSArnaldo Carvalho de Melo hists__collapse_resort(hists, NULL); 575452ce03bSJiri Olsa perf_evsel__output_resort(evsel, NULL); 576254de74cSJiri Olsa 577d8590430SJiri Olsa if (t->lost || t->drop) 578254de74cSJiri Olsa pr_warning("Too slow to read ring buffer (change period (-c/-F) or limit CPUs (-C)\n"); 579701937bdSNamhyung Kim } 580701937bdSNamhyung Kim 581c94cef4bSJiri Olsa static void stop_top(void) 582c94cef4bSJiri Olsa { 583c94cef4bSJiri Olsa session_done = 1; 584c94cef4bSJiri Olsa done = 1; 585c94cef4bSJiri Olsa } 586c94cef4bSJiri Olsa 5871758af10SArnaldo Carvalho de Melo static void *display_thread_tui(void *arg) 588c0443df1SArnaldo Carvalho de Melo { 58932dcd021SJiri Olsa struct evsel *pos; 5901758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 591ab81f3fdSArnaldo Carvalho de Melo const char *help = "For a higher level overview, try: perf top --sort comm,dso"; 5929783adf7SNamhyung Kim struct hist_browser_timer hbt = { 5939783adf7SNamhyung Kim .timer = perf_top__sort_new_samples, 5949783adf7SNamhyung Kim .arg = top, 5959783adf7SNamhyung Kim .refresh = top->delay_secs, 5969783adf7SNamhyung Kim }; 597ab81f3fdSArnaldo Carvalho de Melo 598868a8329SKrister Johansen /* In order to read symbols from other namespaces perf to needs to call 599868a8329SKrister Johansen * setns(2). This isn't permitted if the struct_fs has multiple users. 600868a8329SKrister Johansen * unshare(2) the fs so that we may continue to setns into namespaces 601868a8329SKrister Johansen * that we're observing. 602868a8329SKrister Johansen */ 603868a8329SKrister Johansen unshare(CLONE_FS); 604868a8329SKrister Johansen 6051758af10SArnaldo Carvalho de Melo perf_top__sort_new_samples(top); 6060d37aa34SArnaldo Carvalho de Melo 6070d37aa34SArnaldo Carvalho de Melo /* 6080d37aa34SArnaldo Carvalho de Melo * Initialize the uid_filter_str, in the future the TUI will allow 609adba1634SIngo Molnar * Zooming in/out UIDs. For now just use whatever the user passed 6100d37aa34SArnaldo Carvalho de Melo * via --uid. 6110d37aa34SArnaldo Carvalho de Melo */ 612e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(top->evlist, pos) { 6134ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(pos); 6144ea062edSArnaldo Carvalho de Melo hists->uid_filter_str = top->record_opts.target.uid_str; 6154ea062edSArnaldo Carvalho de Melo } 6160d37aa34SArnaldo Carvalho de Melo 61713d1e536SNamhyung Kim perf_evlist__tui_browse_hists(top->evlist, help, &hbt, 6185d484f99SArnaldo Carvalho de Melo top->min_percent, 619a1ff5b05SKan Liang &top->session->header.env, 620cd0cccbaSArnaldo Carvalho de Melo !top->record_opts.overwrite, 621cd0cccbaSArnaldo Carvalho de Melo &top->annotation_opts); 622ab81f3fdSArnaldo Carvalho de Melo 623c94cef4bSJiri Olsa stop_top(); 624c0443df1SArnaldo Carvalho de Melo return NULL; 625c0443df1SArnaldo Carvalho de Melo } 626c0443df1SArnaldo Carvalho de Melo 6274a1a9971SJiri Olsa static void display_sig(int sig __maybe_unused) 6284a1a9971SJiri Olsa { 629c94cef4bSJiri Olsa stop_top(); 6304a1a9971SJiri Olsa } 6314a1a9971SJiri Olsa 6324a1a9971SJiri Olsa static void display_setup_sig(void) 6334a1a9971SJiri Olsa { 63409f4d78aSArnaldo Carvalho de Melo signal(SIGSEGV, sighandler_dump_stack); 63509f4d78aSArnaldo Carvalho de Melo signal(SIGFPE, sighandler_dump_stack); 6364a1a9971SJiri Olsa signal(SIGINT, display_sig); 6374a1a9971SJiri Olsa signal(SIGQUIT, display_sig); 6384a1a9971SJiri Olsa signal(SIGTERM, display_sig); 6394a1a9971SJiri Olsa } 6404a1a9971SJiri Olsa 6411758af10SArnaldo Carvalho de Melo static void *display_thread(void *arg) 64286470930SIngo Molnar { 64386470930SIngo Molnar struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 6449398c484SJiri Olsa struct termios save; 6451758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 646923c42c1SMike Galbraith int delay_msecs, c; 64786470930SIngo Molnar 648868a8329SKrister Johansen /* In order to read symbols from other namespaces perf to needs to call 649868a8329SKrister Johansen * setns(2). This isn't permitted if the struct_fs has multiple users. 650868a8329SKrister Johansen * unshare(2) the fs so that we may continue to setns into namespaces 651868a8329SKrister Johansen * that we're observing. 652868a8329SKrister Johansen */ 653868a8329SKrister Johansen unshare(CLONE_FS); 654868a8329SKrister Johansen 6554a1a9971SJiri Olsa display_setup_sig(); 6563af6e338SArnaldo Carvalho de Melo pthread__unblock_sigwinch(); 657923c42c1SMike Galbraith repeat: 658b9c4b0f4SArnaldo Carvalho de Melo delay_msecs = top->delay_secs * MSEC_PER_SEC; 6599398c484SJiri Olsa set_term_quiet_input(&save); 660923c42c1SMike Galbraith /* trash return*/ 661923c42c1SMike Galbraith getc(stdin); 66286470930SIngo Molnar 66311859e82SArnaldo Carvalho de Melo while (!done) { 6641758af10SArnaldo Carvalho de Melo perf_top__print_sym_table(top); 6653af6e338SArnaldo Carvalho de Melo /* 6663af6e338SArnaldo Carvalho de Melo * Either timeout expired or we got an EINTR due to SIGWINCH, 6673af6e338SArnaldo Carvalho de Melo * refresh screen in both cases. 6683af6e338SArnaldo Carvalho de Melo */ 6693af6e338SArnaldo Carvalho de Melo switch (poll(&stdin_poll, 1, delay_msecs)) { 6703af6e338SArnaldo Carvalho de Melo case 0: 6713af6e338SArnaldo Carvalho de Melo continue; 6723af6e338SArnaldo Carvalho de Melo case -1: 6733af6e338SArnaldo Carvalho de Melo if (errno == EINTR) 6743af6e338SArnaldo Carvalho de Melo continue; 6757b0214b7SArnaldo Carvalho de Melo __fallthrough; 6763af6e338SArnaldo Carvalho de Melo default: 677923c42c1SMike Galbraith c = getc(stdin); 678923c42c1SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 679923c42c1SMike Galbraith 68011859e82SArnaldo Carvalho de Melo if (perf_top__handle_keypress(top, c)) 681923c42c1SMike Galbraith goto repeat; 682c94cef4bSJiri Olsa stop_top(); 68311859e82SArnaldo Carvalho de Melo } 68411859e82SArnaldo Carvalho de Melo } 68586470930SIngo Molnar 6864a1a9971SJiri Olsa tcsetattr(0, TCSAFLUSH, &save); 68786470930SIngo Molnar return NULL; 68886470930SIngo Molnar } 68986470930SIngo Molnar 6907c50391fSNamhyung Kim static int hist_iter__top_callback(struct hist_entry_iter *iter, 6917c50391fSNamhyung Kim struct addr_location *al, bool single, 6927c50391fSNamhyung Kim void *arg) 6937c50391fSNamhyung Kim { 6947c50391fSNamhyung Kim struct perf_top *top = arg; 6957c50391fSNamhyung Kim struct hist_entry *he = iter->he; 69632dcd021SJiri Olsa struct evsel *evsel = iter->evsel; 6977c50391fSNamhyung Kim 6982e0453afSJiri Olsa if (perf_hpp_list.sym && single) 699e345f3bdSArnaldo Carvalho de Melo perf_top__record_precise_ip(top, he, iter->sample, evsel, al->addr); 7007c50391fSNamhyung Kim 701a18b027eSAndi Kleen hist__account_cycles(iter->sample->branch_stack, al, iter->sample, 702a18b027eSAndi Kleen !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY)); 7037c50391fSNamhyung Kim return 0; 7047c50391fSNamhyung Kim } 7057c50391fSNamhyung Kim 7061758af10SArnaldo Carvalho de Melo static void perf_event__process_sample(struct perf_tool *tool, 7071758af10SArnaldo Carvalho de Melo const union perf_event *event, 70832dcd021SJiri Olsa struct evsel *evsel, 7098d50e5b4SArnaldo Carvalho de Melo struct perf_sample *sample, 710743eb868SArnaldo Carvalho de Melo struct machine *machine) 71186470930SIngo Molnar { 7121758af10SArnaldo Carvalho de Melo struct perf_top *top = container_of(tool, struct perf_top, tool); 7131ed091c4SArnaldo Carvalho de Melo struct addr_location al; 71419d4ac3cSArnaldo Carvalho de Melo int err; 7155b2bb75aSArnaldo Carvalho de Melo 71623346f21SArnaldo Carvalho de Melo if (!machine && perf_guest) { 7176b118e92SDavid Ahern static struct intlist *seen; 7186b118e92SDavid Ahern 7196b118e92SDavid Ahern if (!seen) 720ffe0fb76SArnaldo Carvalho de Melo seen = intlist__new(NULL); 7216b118e92SDavid Ahern 722ef89325fSAdrian Hunter if (!intlist__has_entry(seen, sample->pid)) { 723a1645ce1SZhang, Yanmin pr_err("Can't find guest [%d]'s kernel information\n", 724ef89325fSAdrian Hunter sample->pid); 725ef89325fSAdrian Hunter intlist__add(seen, sample->pid); 7266b118e92SDavid Ahern } 727a1645ce1SZhang, Yanmin return; 728a1645ce1SZhang, Yanmin } 729a1645ce1SZhang, Yanmin 7300c095715SJoerg Roedel if (!machine) { 73111859e82SArnaldo Carvalho de Melo pr_err("%u unprocessable samples recorded.\r", 73275be989aSArnaldo Carvalho de Melo top->session->evlist->stats.nr_unprocessable_samples++); 7330c095715SJoerg Roedel return; 7340c095715SJoerg Roedel } 7350c095715SJoerg Roedel 7368115d60cSArnaldo Carvalho de Melo if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) 7371758af10SArnaldo Carvalho de Melo top->exact_samples++; 7381676b8a0SPeter Zijlstra 739bb3eb566SArnaldo Carvalho de Melo if (machine__resolve(machine, &al, sample) < 0) 7401ed091c4SArnaldo Carvalho de Melo return; 74186470930SIngo Molnar 742e77a0742SArnaldo Carvalho de Melo if (!machine->kptr_restrict_warned && 7435f6f5580SArnaldo Carvalho de Melo symbol_conf.kptr_restrict && 7445f6f5580SArnaldo Carvalho de Melo al.cpumode == PERF_RECORD_MISC_KERNEL) { 745b89a5124SArnaldo Carvalho de Melo if (!perf_evlist__exclude_kernel(top->session->evlist)) { 7465f6f5580SArnaldo Carvalho de Melo ui__warning( 7475f6f5580SArnaldo Carvalho de Melo "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" 7485f6f5580SArnaldo Carvalho de Melo "Check /proc/sys/kernel/kptr_restrict.\n\n" 7495f6f5580SArnaldo Carvalho de Melo "Kernel%s samples will not be resolved.\n", 750e94b861aSArnaldo Carvalho de Melo al.map && map__has_symbols(al.map) ? 7515f6f5580SArnaldo Carvalho de Melo " modules" : ""); 7525f6f5580SArnaldo Carvalho de Melo if (use_browser <= 0) 7535f6f5580SArnaldo Carvalho de Melo sleep(5); 754b89a5124SArnaldo Carvalho de Melo } 755e77a0742SArnaldo Carvalho de Melo machine->kptr_restrict_warned = true; 7565f6f5580SArnaldo Carvalho de Melo } 7575f6f5580SArnaldo Carvalho de Melo 75868766bfaSArnaldo Carvalho de Melo if (al.sym == NULL && al.map != NULL) { 759e4a338d0SArnaldo Carvalho de Melo const char *msg = "Kernel samples will not be resolved.\n"; 76072b8fa17SArnaldo Carvalho de Melo /* 76172b8fa17SArnaldo Carvalho de Melo * As we do lazy loading of symtabs we only will know if the 76272b8fa17SArnaldo Carvalho de Melo * specified vmlinux file is invalid when we actually have a 76372b8fa17SArnaldo Carvalho de Melo * hit in kernel space and then try to load it. So if we get 76472b8fa17SArnaldo Carvalho de Melo * here and there are _no_ symbols in the DSO backing the 76572b8fa17SArnaldo Carvalho de Melo * kernel map, bail out. 76672b8fa17SArnaldo Carvalho de Melo * 76772b8fa17SArnaldo Carvalho de Melo * We may never get here, for instance, if we use -K/ 76872b8fa17SArnaldo Carvalho de Melo * --hide-kernel-symbols, even if the user specifies an 76972b8fa17SArnaldo Carvalho de Melo * invalid --vmlinux ;-) 77072b8fa17SArnaldo Carvalho de Melo */ 771e77a0742SArnaldo Carvalho de Melo if (!machine->kptr_restrict_warned && !top->vmlinux_warned && 772e94b861aSArnaldo Carvalho de Melo __map__is_kernel(al.map) && map__has_symbols(al.map)) { 773e4a338d0SArnaldo Carvalho de Melo if (symbol_conf.vmlinux_name) { 77418425f13SArnaldo Carvalho de Melo char serr[256]; 77518425f13SArnaldo Carvalho de Melo dso__strerror_load(al.map->dso, serr, sizeof(serr)); 77618425f13SArnaldo Carvalho de Melo ui__warning("The %s file can't be used: %s\n%s", 77718425f13SArnaldo Carvalho de Melo symbol_conf.vmlinux_name, serr, msg); 778e4a338d0SArnaldo Carvalho de Melo } else { 779e4a338d0SArnaldo Carvalho de Melo ui__warning("A vmlinux file was not found.\n%s", 780e4a338d0SArnaldo Carvalho de Melo msg); 781e4a338d0SArnaldo Carvalho de Melo } 782e4a338d0SArnaldo Carvalho de Melo 783e4a338d0SArnaldo Carvalho de Melo if (use_browser <= 0) 784e4a338d0SArnaldo Carvalho de Melo sleep(5); 7851758af10SArnaldo Carvalho de Melo top->vmlinux_warned = true; 78672b8fa17SArnaldo Carvalho de Melo } 78772b8fa17SArnaldo Carvalho de Melo } 78872b8fa17SArnaldo Carvalho de Melo 789b55cc4edSArnaldo Carvalho de Melo if (al.sym == NULL || !al.sym->idle) { 7904ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(evsel); 7917c50391fSNamhyung Kim struct hist_entry_iter iter = { 792063bd936SNamhyung Kim .evsel = evsel, 793063bd936SNamhyung Kim .sample = sample, 7947c50391fSNamhyung Kim .add_entry_cb = hist_iter__top_callback, 7957c50391fSNamhyung Kim }; 79670db7533SArnaldo Carvalho de Melo 7977c50391fSNamhyung Kim if (symbol_conf.cumulate_callchain) 7987c50391fSNamhyung Kim iter.ops = &hist_iter_cumulative; 7997c50391fSNamhyung Kim else 8007c50391fSNamhyung Kim iter.ops = &hist_iter_normal; 80119d4ac3cSArnaldo Carvalho de Melo 8024ea062edSArnaldo Carvalho de Melo pthread_mutex_lock(&hists->lock); 8037c50391fSNamhyung Kim 804063bd936SNamhyung Kim err = hist_entry_iter__add(&iter, &al, top->max_stack, top); 8057c50391fSNamhyung Kim if (err < 0) 806ab81f3fdSArnaldo Carvalho de Melo pr_err("Problem incrementing symbol period, skipping event\n"); 807ab81f3fdSArnaldo Carvalho de Melo 8084ea062edSArnaldo Carvalho de Melo pthread_mutex_unlock(&hists->lock); 8095807806aSArnaldo Carvalho de Melo } 810ab81f3fdSArnaldo Carvalho de Melo 811b91fc39fSArnaldo Carvalho de Melo addr_location__put(&al); 81286470930SIngo Molnar } 81386470930SIngo Molnar 814d24e3c98SJiri Olsa static void 815d24e3c98SJiri Olsa perf_top__process_lost(struct perf_top *top, union perf_event *event, 81632dcd021SJiri Olsa struct evsel *evsel) 817d24e3c98SJiri Olsa { 818d24e3c98SJiri Olsa struct hists *hists = evsel__hists(evsel); 819d24e3c98SJiri Olsa 820d24e3c98SJiri Olsa top->lost += event->lost.lost; 821d24e3c98SJiri Olsa top->lost_total += event->lost.lost; 822d24e3c98SJiri Olsa hists->stats.total_lost += event->lost.lost; 823d24e3c98SJiri Olsa } 824d24e3c98SJiri Olsa 825d24e3c98SJiri Olsa static void 826d24e3c98SJiri Olsa perf_top__process_lost_samples(struct perf_top *top, 827d24e3c98SJiri Olsa union perf_event *event, 82832dcd021SJiri Olsa struct evsel *evsel) 829d24e3c98SJiri Olsa { 830d24e3c98SJiri Olsa struct hists *hists = evsel__hists(evsel); 831d24e3c98SJiri Olsa 832d24e3c98SJiri Olsa top->lost += event->lost_samples.lost; 833d24e3c98SJiri Olsa top->lost_total += event->lost_samples.lost; 834d24e3c98SJiri Olsa hists->stats.total_lost_samples += event->lost_samples.lost; 835d24e3c98SJiri Olsa } 836d24e3c98SJiri Olsa 837d63b9f6fSJiri Olsa static u64 last_timestamp; 838d63b9f6fSJiri Olsa 8391758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read_idx(struct perf_top *top, int idx) 84086470930SIngo Molnar { 841ebebbf08SKan Liang struct record_opts *opts = &top->record_opts; 84263503dbaSJiri Olsa struct evlist *evlist = top->evlist; 843ebebbf08SKan Liang struct perf_mmap *md; 8448115d60cSArnaldo Carvalho de Melo union perf_event *event; 84586470930SIngo Molnar 846ebebbf08SKan Liang md = opts->overwrite ? &evlist->overwrite_mmap[idx] : &evlist->mmap[idx]; 847b9bae2c8SKan Liang if (perf_mmap__read_init(md) < 0) 848ebebbf08SKan Liang return; 849ebebbf08SKan Liang 8500019dc87SKan Liang while ((event = perf_mmap__read_event(md)) != NULL) { 85116c66bc1SJiri Olsa int ret; 85204391debSArnaldo Carvalho de Melo 853d63b9f6fSJiri Olsa ret = perf_evlist__parse_sample_timestamp(evlist, event, &last_timestamp); 85416c66bc1SJiri Olsa if (ret && ret != -1) 855743eb868SArnaldo Carvalho de Melo break; 856743eb868SArnaldo Carvalho de Melo 857d63b9f6fSJiri Olsa ret = ordered_events__queue(top->qe.in, event, last_timestamp, 0); 85816c66bc1SJiri Olsa if (ret) 85916c66bc1SJiri Olsa break; 86094ad6e7eSJiri Olsa 86194ad6e7eSJiri Olsa perf_mmap__consume(md); 86294ad6e7eSJiri Olsa 86394ad6e7eSJiri Olsa if (top->qe.rotate) { 86494ad6e7eSJiri Olsa pthread_mutex_lock(&top->qe.mutex); 86594ad6e7eSJiri Olsa top->qe.rotate = false; 86694ad6e7eSJiri Olsa pthread_cond_signal(&top->qe.cond); 86794ad6e7eSJiri Olsa pthread_mutex_unlock(&top->qe.mutex); 86894ad6e7eSJiri Olsa } 86986470930SIngo Molnar } 870ebebbf08SKan Liang 871ebebbf08SKan Liang perf_mmap__read_done(md); 87286470930SIngo Molnar } 87386470930SIngo Molnar 8741758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read(struct perf_top *top) 8752f01190aSFrederic Weisbecker { 876ebebbf08SKan Liang bool overwrite = top->record_opts.overwrite; 87763503dbaSJiri Olsa struct evlist *evlist = top->evlist; 87870db7533SArnaldo Carvalho de Melo int i; 8792f01190aSFrederic Weisbecker 880ebebbf08SKan Liang if (overwrite) 881ebebbf08SKan Liang perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_DATA_PENDING); 882ebebbf08SKan Liang 8831758af10SArnaldo Carvalho de Melo for (i = 0; i < top->evlist->nr_mmaps; i++) 8841758af10SArnaldo Carvalho de Melo perf_top__mmap_read_idx(top, i); 885ebebbf08SKan Liang 886ebebbf08SKan Liang if (overwrite) { 887ebebbf08SKan Liang perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_EMPTY); 888ebebbf08SKan Liang perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_RUNNING); 889ebebbf08SKan Liang } 8902f01190aSFrederic Weisbecker } 8912f01190aSFrederic Weisbecker 89263878a53SKan Liang /* 89363878a53SKan Liang * Check per-event overwrite term. 89463878a53SKan Liang * perf top should support consistent term for all events. 89563878a53SKan Liang * - All events don't have per-event term 89663878a53SKan Liang * E.g. "cpu/cpu-cycles/,cpu/instructions/" 89763878a53SKan Liang * Nothing change, return 0. 89863878a53SKan Liang * - All events have same per-event term 89963878a53SKan Liang * E.g. "cpu/cpu-cycles,no-overwrite/,cpu/instructions,no-overwrite/ 90063878a53SKan Liang * Using the per-event setting to replace the opts->overwrite if 90163878a53SKan Liang * they are different, then return 0. 90263878a53SKan Liang * - Events have different per-event term 90363878a53SKan Liang * E.g. "cpu/cpu-cycles,overwrite/,cpu/instructions,no-overwrite/" 90463878a53SKan Liang * Return -1 90563878a53SKan Liang * - Some of the event set per-event term, but some not. 90663878a53SKan Liang * E.g. "cpu/cpu-cycles/,cpu/instructions,no-overwrite/" 90763878a53SKan Liang * Return -1 90863878a53SKan Liang */ 90963878a53SKan Liang static int perf_top__overwrite_check(struct perf_top *top) 91063878a53SKan Liang { 91163878a53SKan Liang struct record_opts *opts = &top->record_opts; 91263503dbaSJiri Olsa struct evlist *evlist = top->evlist; 91363878a53SKan Liang struct perf_evsel_config_term *term; 91463878a53SKan Liang struct list_head *config_terms; 91532dcd021SJiri Olsa struct evsel *evsel; 91663878a53SKan Liang int set, overwrite = -1; 91763878a53SKan Liang 91863878a53SKan Liang evlist__for_each_entry(evlist, evsel) { 91963878a53SKan Liang set = -1; 92063878a53SKan Liang config_terms = &evsel->config_terms; 92163878a53SKan Liang list_for_each_entry(term, config_terms, list) { 92263878a53SKan Liang if (term->type == PERF_EVSEL__CONFIG_TERM_OVERWRITE) 92363878a53SKan Liang set = term->val.overwrite ? 1 : 0; 92463878a53SKan Liang } 92563878a53SKan Liang 92663878a53SKan Liang /* no term for current and previous event (likely) */ 92763878a53SKan Liang if ((overwrite < 0) && (set < 0)) 92863878a53SKan Liang continue; 92963878a53SKan Liang 93063878a53SKan Liang /* has term for both current and previous event, compare */ 93163878a53SKan Liang if ((overwrite >= 0) && (set >= 0) && (overwrite != set)) 93263878a53SKan Liang return -1; 93363878a53SKan Liang 93463878a53SKan Liang /* no term for current event but has term for previous one */ 93563878a53SKan Liang if ((overwrite >= 0) && (set < 0)) 93663878a53SKan Liang return -1; 93763878a53SKan Liang 93863878a53SKan Liang /* has term for current event */ 93963878a53SKan Liang if ((overwrite < 0) && (set >= 0)) { 94063878a53SKan Liang /* if it's first event, set overwrite */ 94163878a53SKan Liang if (evsel == perf_evlist__first(evlist)) 94263878a53SKan Liang overwrite = set; 94363878a53SKan Liang else 94463878a53SKan Liang return -1; 94563878a53SKan Liang } 94663878a53SKan Liang } 94763878a53SKan Liang 94863878a53SKan Liang if ((overwrite >= 0) && (opts->overwrite != overwrite)) 94963878a53SKan Liang opts->overwrite = overwrite; 95063878a53SKan Liang 95163878a53SKan Liang return 0; 95263878a53SKan Liang } 95363878a53SKan Liang 954204721d7SKan Liang static int perf_top_overwrite_fallback(struct perf_top *top, 95532dcd021SJiri Olsa struct evsel *evsel) 956204721d7SKan Liang { 957204721d7SKan Liang struct record_opts *opts = &top->record_opts; 95863503dbaSJiri Olsa struct evlist *evlist = top->evlist; 95932dcd021SJiri Olsa struct evsel *counter; 960204721d7SKan Liang 961204721d7SKan Liang if (!opts->overwrite) 962204721d7SKan Liang return 0; 963204721d7SKan Liang 964204721d7SKan Liang /* only fall back when first event fails */ 965204721d7SKan Liang if (evsel != perf_evlist__first(evlist)) 966204721d7SKan Liang return 0; 967204721d7SKan Liang 968204721d7SKan Liang evlist__for_each_entry(evlist, counter) 9691fc632ceSJiri Olsa counter->core.attr.write_backward = false; 970204721d7SKan Liang opts->overwrite = false; 971853745f5SKan Liang pr_debug2("fall back to non-overwrite mode\n"); 972204721d7SKan Liang return 1; 973204721d7SKan Liang } 974204721d7SKan Liang 97511859e82SArnaldo Carvalho de Melo static int perf_top__start_counters(struct perf_top *top) 97672cb7013SArnaldo Carvalho de Melo { 977d6195a6aSArnaldo Carvalho de Melo char msg[BUFSIZ]; 97832dcd021SJiri Olsa struct evsel *counter; 97963503dbaSJiri Olsa struct evlist *evlist = top->evlist; 980b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 981727ab04eSArnaldo Carvalho de Melo 98263878a53SKan Liang if (perf_top__overwrite_check(top)) { 98363878a53SKan Liang ui__error("perf top only support consistent per-event " 98463878a53SKan Liang "overwrite setting for all events\n"); 98563878a53SKan Liang goto out_err; 98663878a53SKan Liang } 98763878a53SKan Liang 988e68ae9cfSArnaldo Carvalho de Melo perf_evlist__config(evlist, opts, &callchain_param); 98972cb7013SArnaldo Carvalho de Melo 990e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(evlist, counter) { 99172cb7013SArnaldo Carvalho de Melo try_again: 992f72f901dSJiri Olsa if (evsel__open(counter, top->evlist->core.cpus, 9936a4bb04cSJiri Olsa top->evlist->threads) < 0) { 994204721d7SKan Liang 995204721d7SKan Liang /* 996204721d7SKan Liang * Specially handle overwrite fall back. 997204721d7SKan Liang * Because perf top is the only tool which has 998204721d7SKan Liang * overwrite mode by default, support 999204721d7SKan Liang * both overwrite and non-overwrite mode, and 1000204721d7SKan Liang * require consistent mode for all events. 1001204721d7SKan Liang * 1002204721d7SKan Liang * May move it to generic code with more tools 1003204721d7SKan Liang * have similar attribute. 1004204721d7SKan Liang */ 1005204721d7SKan Liang if (perf_missing_features.write_backward && 1006204721d7SKan Liang perf_top_overwrite_fallback(top, counter)) 1007204721d7SKan Liang goto try_again; 1008204721d7SKan Liang 100956e52e85SArnaldo Carvalho de Melo if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { 1010bb963e16SNamhyung Kim if (verbose > 0) 1011c0a54341SArnaldo Carvalho de Melo ui__warning("%s\n", msg); 101272cb7013SArnaldo Carvalho de Melo goto try_again; 101372cb7013SArnaldo Carvalho de Melo } 1014c286c419SArnaldo Carvalho de Melo 101556e52e85SArnaldo Carvalho de Melo perf_evsel__open_strerror(counter, &opts->target, 101656e52e85SArnaldo Carvalho de Melo errno, msg, sizeof(msg)); 101756e52e85SArnaldo Carvalho de Melo ui__error("%s\n", msg); 1018c286c419SArnaldo Carvalho de Melo goto out_err; 101972cb7013SArnaldo Carvalho de Melo } 102072cb7013SArnaldo Carvalho de Melo } 102170db7533SArnaldo Carvalho de Melo 1022f74b9d3aSWang Nan if (perf_evlist__mmap(evlist, opts->mmap_pages) < 0) { 10233780f488SNamhyung Kim ui__error("Failed to mmap with %d (%s)\n", 1024c8b5f2c9SArnaldo Carvalho de Melo errno, str_error_r(errno, msg, sizeof(msg))); 1025c286c419SArnaldo Carvalho de Melo goto out_err; 1026c286c419SArnaldo Carvalho de Melo } 1027c286c419SArnaldo Carvalho de Melo 102811859e82SArnaldo Carvalho de Melo return 0; 1029c286c419SArnaldo Carvalho de Melo 1030c286c419SArnaldo Carvalho de Melo out_err: 103111859e82SArnaldo Carvalho de Melo return -1; 103272cb7013SArnaldo Carvalho de Melo } 103372cb7013SArnaldo Carvalho de Melo 1034e3815264SArnaldo Carvalho de Melo static int callchain_param__setup_sample_type(struct callchain_param *callchain) 103519d4ac3cSArnaldo Carvalho de Melo { 1036f2e14cd2SArnaldo Carvalho de Melo if (callchain->mode != CHAIN_NONE) { 1037e3815264SArnaldo Carvalho de Melo if (callchain_register_param(callchain) < 0) { 10383780f488SNamhyung Kim ui__error("Can't register callchain params.\n"); 103919d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 104019d4ac3cSArnaldo Carvalho de Melo } 104119d4ac3cSArnaldo Carvalho de Melo } 104219d4ac3cSArnaldo Carvalho de Melo 104319d4ac3cSArnaldo Carvalho de Melo return 0; 104419d4ac3cSArnaldo Carvalho de Melo } 104519d4ac3cSArnaldo Carvalho de Melo 104616c66bc1SJiri Olsa static struct ordered_events *rotate_queues(struct perf_top *top) 104716c66bc1SJiri Olsa { 104816c66bc1SJiri Olsa struct ordered_events *in = top->qe.in; 104916c66bc1SJiri Olsa 105016c66bc1SJiri Olsa if (top->qe.in == &top->qe.data[1]) 105116c66bc1SJiri Olsa top->qe.in = &top->qe.data[0]; 105216c66bc1SJiri Olsa else 105316c66bc1SJiri Olsa top->qe.in = &top->qe.data[1]; 105416c66bc1SJiri Olsa 105516c66bc1SJiri Olsa return in; 105616c66bc1SJiri Olsa } 105716c66bc1SJiri Olsa 105816c66bc1SJiri Olsa static void *process_thread(void *arg) 105916c66bc1SJiri Olsa { 106016c66bc1SJiri Olsa struct perf_top *top = arg; 106116c66bc1SJiri Olsa 106216c66bc1SJiri Olsa while (!done) { 106316c66bc1SJiri Olsa struct ordered_events *out, *in = top->qe.in; 106416c66bc1SJiri Olsa 106516c66bc1SJiri Olsa if (!in->nr_events) { 106616c66bc1SJiri Olsa usleep(100); 106716c66bc1SJiri Olsa continue; 106816c66bc1SJiri Olsa } 106916c66bc1SJiri Olsa 107016c66bc1SJiri Olsa out = rotate_queues(top); 107194ad6e7eSJiri Olsa 107294ad6e7eSJiri Olsa pthread_mutex_lock(&top->qe.mutex); 107394ad6e7eSJiri Olsa top->qe.rotate = true; 107494ad6e7eSJiri Olsa pthread_cond_wait(&top->qe.cond, &top->qe.mutex); 107594ad6e7eSJiri Olsa pthread_mutex_unlock(&top->qe.mutex); 107616c66bc1SJiri Olsa 107716c66bc1SJiri Olsa if (ordered_events__flush(out, OE_FLUSH__TOP)) 107816c66bc1SJiri Olsa pr_err("failed to process events\n"); 107916c66bc1SJiri Olsa } 108016c66bc1SJiri Olsa 108116c66bc1SJiri Olsa return NULL; 108216c66bc1SJiri Olsa } 108316c66bc1SJiri Olsa 1084d63b9f6fSJiri Olsa /* 1085d63b9f6fSJiri Olsa * Allow only 'top->delay_secs' seconds behind samples. 1086d63b9f6fSJiri Olsa */ 1087d63b9f6fSJiri Olsa static int should_drop(struct ordered_event *qevent, struct perf_top *top) 1088d63b9f6fSJiri Olsa { 1089d63b9f6fSJiri Olsa union perf_event *event = qevent->event; 1090d63b9f6fSJiri Olsa u64 delay_timestamp; 1091d63b9f6fSJiri Olsa 1092d63b9f6fSJiri Olsa if (event->header.type != PERF_RECORD_SAMPLE) 1093d63b9f6fSJiri Olsa return false; 1094d63b9f6fSJiri Olsa 1095d63b9f6fSJiri Olsa delay_timestamp = qevent->timestamp + top->delay_secs * NSEC_PER_SEC; 1096d63b9f6fSJiri Olsa return delay_timestamp < last_timestamp; 1097d63b9f6fSJiri Olsa } 1098d63b9f6fSJiri Olsa 109916c66bc1SJiri Olsa static int deliver_event(struct ordered_events *qe, 110016c66bc1SJiri Olsa struct ordered_event *qevent) 110116c66bc1SJiri Olsa { 110216c66bc1SJiri Olsa struct perf_top *top = qe->data; 110363503dbaSJiri Olsa struct evlist *evlist = top->evlist; 110416c66bc1SJiri Olsa struct perf_session *session = top->session; 110516c66bc1SJiri Olsa union perf_event *event = qevent->event; 110616c66bc1SJiri Olsa struct perf_sample sample; 110732dcd021SJiri Olsa struct evsel *evsel; 110816c66bc1SJiri Olsa struct machine *machine; 110916c66bc1SJiri Olsa int ret = -1; 111016c66bc1SJiri Olsa 111197f7e0b3SJiri Olsa if (should_drop(qevent, top)) { 111297f7e0b3SJiri Olsa top->drop++; 111397f7e0b3SJiri Olsa top->drop_total++; 1114d63b9f6fSJiri Olsa return 0; 111597f7e0b3SJiri Olsa } 1116d63b9f6fSJiri Olsa 111716c66bc1SJiri Olsa ret = perf_evlist__parse_sample(evlist, event, &sample); 111816c66bc1SJiri Olsa if (ret) { 111916c66bc1SJiri Olsa pr_err("Can't parse sample, err = %d\n", ret); 112016c66bc1SJiri Olsa goto next_event; 112116c66bc1SJiri Olsa } 112216c66bc1SJiri Olsa 112316c66bc1SJiri Olsa evsel = perf_evlist__id2evsel(session->evlist, sample.id); 112416c66bc1SJiri Olsa assert(evsel != NULL); 112516c66bc1SJiri Olsa 112616c66bc1SJiri Olsa if (event->header.type == PERF_RECORD_SAMPLE) 112716c66bc1SJiri Olsa ++top->samples; 112816c66bc1SJiri Olsa 112916c66bc1SJiri Olsa switch (sample.cpumode) { 113016c66bc1SJiri Olsa case PERF_RECORD_MISC_USER: 113116c66bc1SJiri Olsa ++top->us_samples; 113216c66bc1SJiri Olsa if (top->hide_user_symbols) 113316c66bc1SJiri Olsa goto next_event; 113416c66bc1SJiri Olsa machine = &session->machines.host; 113516c66bc1SJiri Olsa break; 113616c66bc1SJiri Olsa case PERF_RECORD_MISC_KERNEL: 113716c66bc1SJiri Olsa ++top->kernel_samples; 113816c66bc1SJiri Olsa if (top->hide_kernel_symbols) 113916c66bc1SJiri Olsa goto next_event; 114016c66bc1SJiri Olsa machine = &session->machines.host; 114116c66bc1SJiri Olsa break; 114216c66bc1SJiri Olsa case PERF_RECORD_MISC_GUEST_KERNEL: 114316c66bc1SJiri Olsa ++top->guest_kernel_samples; 114416c66bc1SJiri Olsa machine = perf_session__find_machine(session, 114516c66bc1SJiri Olsa sample.pid); 114616c66bc1SJiri Olsa break; 114716c66bc1SJiri Olsa case PERF_RECORD_MISC_GUEST_USER: 114816c66bc1SJiri Olsa ++top->guest_us_samples; 114916c66bc1SJiri Olsa /* 115016c66bc1SJiri Olsa * TODO: we don't process guest user from host side 115116c66bc1SJiri Olsa * except simple counting. 115216c66bc1SJiri Olsa */ 115316c66bc1SJiri Olsa goto next_event; 115416c66bc1SJiri Olsa default: 115516c66bc1SJiri Olsa if (event->header.type == PERF_RECORD_SAMPLE) 115616c66bc1SJiri Olsa goto next_event; 115716c66bc1SJiri Olsa machine = &session->machines.host; 115816c66bc1SJiri Olsa break; 115916c66bc1SJiri Olsa } 116016c66bc1SJiri Olsa 116116c66bc1SJiri Olsa if (event->header.type == PERF_RECORD_SAMPLE) { 116216c66bc1SJiri Olsa perf_event__process_sample(&top->tool, event, evsel, 116316c66bc1SJiri Olsa &sample, machine); 116416c66bc1SJiri Olsa } else if (event->header.type == PERF_RECORD_LOST) { 116516c66bc1SJiri Olsa perf_top__process_lost(top, event, evsel); 116616c66bc1SJiri Olsa } else if (event->header.type == PERF_RECORD_LOST_SAMPLES) { 116716c66bc1SJiri Olsa perf_top__process_lost_samples(top, event, evsel); 116816c66bc1SJiri Olsa } else if (event->header.type < PERF_RECORD_MAX) { 116916c66bc1SJiri Olsa hists__inc_nr_events(evsel__hists(evsel), event->header.type); 117016c66bc1SJiri Olsa machine__process_event(machine, event, &sample); 117116c66bc1SJiri Olsa } else 117216c66bc1SJiri Olsa ++session->evlist->stats.nr_unknown_events; 117316c66bc1SJiri Olsa 117416c66bc1SJiri Olsa ret = 0; 117516c66bc1SJiri Olsa next_event: 117616c66bc1SJiri Olsa return ret; 117716c66bc1SJiri Olsa } 117816c66bc1SJiri Olsa 117916c66bc1SJiri Olsa static void init_process_thread(struct perf_top *top) 118016c66bc1SJiri Olsa { 118116c66bc1SJiri Olsa ordered_events__init(&top->qe.data[0], deliver_event, top); 118216c66bc1SJiri Olsa ordered_events__init(&top->qe.data[1], deliver_event, top); 118316c66bc1SJiri Olsa ordered_events__set_copy_on_queue(&top->qe.data[0], true); 118416c66bc1SJiri Olsa ordered_events__set_copy_on_queue(&top->qe.data[1], true); 118516c66bc1SJiri Olsa top->qe.in = &top->qe.data[0]; 118694ad6e7eSJiri Olsa pthread_mutex_init(&top->qe.mutex, NULL); 118794ad6e7eSJiri Olsa pthread_cond_init(&top->qe.cond, NULL); 118816c66bc1SJiri Olsa } 118916c66bc1SJiri Olsa 11901758af10SArnaldo Carvalho de Melo static int __cmd_top(struct perf_top *top) 1191716c69feSIngo Molnar { 1192b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 119316c66bc1SJiri Olsa pthread_t thread, thread_process; 119419d4ac3cSArnaldo Carvalho de Melo int ret; 1195f5fc1412SJiri Olsa 1196f178fd2dSArnaldo Carvalho de Melo if (!top->annotation_opts.objdump_path) { 1197f178fd2dSArnaldo Carvalho de Melo ret = perf_env__lookup_objdump(&top->session->header.env, 1198f178fd2dSArnaldo Carvalho de Melo &top->annotation_opts.objdump_path); 11990d3942dbSSukadev Bhattiprolu if (ret) 12000dba9e4bSChangbin Du return ret; 12010d3942dbSSukadev Bhattiprolu } 12020d3942dbSSukadev Bhattiprolu 1203e3815264SArnaldo Carvalho de Melo ret = callchain_param__setup_sample_type(&callchain_param); 120419d4ac3cSArnaldo Carvalho de Melo if (ret) 12050dba9e4bSChangbin Du return ret; 120619d4ac3cSArnaldo Carvalho de Melo 12079d8b172fSMasami Hiramatsu if (perf_session__register_idle_thread(top->session) < 0) 12080dba9e4bSChangbin Du return ret; 1209c53d138dSNamhyung Kim 12100c6b4994SKan Liang if (top->nr_threads_synthesize > 1) 1211340b47f5SKan Liang perf_set_multithreaded(); 1212340b47f5SKan Liang 121316c66bc1SJiri Olsa init_process_thread(top); 121416c66bc1SJiri Olsa 1215a0c0a4acSNamhyung Kim if (opts->record_namespaces) 1216a0c0a4acSNamhyung Kim top->tool.namespace_events = true; 1217a0c0a4acSNamhyung Kim 1218e5416950SSong Liu ret = perf_event__synthesize_bpf_events(top->session, perf_event__process, 1219a40b95bcSArnaldo Carvalho de Melo &top->session->machines.host, 1220a40b95bcSArnaldo Carvalho de Melo &top->record_opts); 1221a40b95bcSArnaldo Carvalho de Melo if (ret < 0) 12222d45ef70SArnaldo Carvalho de Melo pr_debug("Couldn't synthesize BPF events: Pre-existing BPF programs won't have symbols resolved.\n"); 1223a40b95bcSArnaldo Carvalho de Melo 1224a33fbd56SArnaldo Carvalho de Melo machine__synthesize_threads(&top->session->machines.host, &opts->target, 1225340b47f5SKan Liang top->evlist->threads, false, 12260c6b4994SKan Liang top->nr_threads_synthesize); 1227340b47f5SKan Liang 12280c6b4994SKan Liang if (top->nr_threads_synthesize > 1) 1229340b47f5SKan Liang perf_set_singlethreaded(); 12302e7ea3abSKan Liang 123135a634f7SJiri Olsa if (perf_hpp_list.socket) { 12322e7ea3abSKan Liang ret = perf_env__read_cpu_topology_map(&perf_env); 12330dba9e4bSChangbin Du if (ret < 0) { 12340dba9e4bSChangbin Du char errbuf[BUFSIZ]; 12350dba9e4bSChangbin Du const char *err = str_error_r(-ret, errbuf, sizeof(errbuf)); 12360dba9e4bSChangbin Du 12370dba9e4bSChangbin Du ui__error("Could not read the CPU topology map: %s\n", err); 12380dba9e4bSChangbin Du return ret; 12390dba9e4bSChangbin Du } 12402e7ea3abSKan Liang } 12412e7ea3abSKan Liang 124211859e82SArnaldo Carvalho de Melo ret = perf_top__start_counters(top); 124311859e82SArnaldo Carvalho de Melo if (ret) 12440dba9e4bSChangbin Du return ret; 124511859e82SArnaldo Carvalho de Melo 12461758af10SArnaldo Carvalho de Melo top->session->evlist = top->evlist; 12477b56cce2SArnaldo Carvalho de Melo perf_session__set_id_hdr_size(top->session); 124886470930SIngo Molnar 12492376c67aSArnaldo Carvalho de Melo /* 12502376c67aSArnaldo Carvalho de Melo * When perf is starting the traced process, all the events (apart from 12512376c67aSArnaldo Carvalho de Melo * group members) have enable_on_exec=1 set, so don't spoil it by 12522376c67aSArnaldo Carvalho de Melo * prematurely enabling them. 12532376c67aSArnaldo Carvalho de Melo * 12542376c67aSArnaldo Carvalho de Melo * XXX 'top' still doesn't start workloads like record, trace, but should, 12552376c67aSArnaldo Carvalho de Melo * so leave the check here. 12562376c67aSArnaldo Carvalho de Melo */ 1257602ad878SArnaldo Carvalho de Melo if (!target__none(&opts->target)) 12581c87f165SJiri Olsa evlist__enable(top->evlist); 12592376c67aSArnaldo Carvalho de Melo 126011859e82SArnaldo Carvalho de Melo ret = -1; 126116c66bc1SJiri Olsa if (pthread_create(&thread_process, NULL, process_thread, top)) { 126216c66bc1SJiri Olsa ui__error("Could not create process thread.\n"); 12630dba9e4bSChangbin Du return ret; 126416c66bc1SJiri Olsa } 126516c66bc1SJiri Olsa 1266c0443df1SArnaldo Carvalho de Melo if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : 12671758af10SArnaldo Carvalho de Melo display_thread), top)) { 12683780f488SNamhyung Kim ui__error("Could not create display thread.\n"); 126916c66bc1SJiri Olsa goto out_join_thread; 127086470930SIngo Molnar } 127186470930SIngo Molnar 12721758af10SArnaldo Carvalho de Melo if (top->realtime_prio) { 127386470930SIngo Molnar struct sched_param param; 127486470930SIngo Molnar 12751758af10SArnaldo Carvalho de Melo param.sched_priority = top->realtime_prio; 127686470930SIngo Molnar if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { 12773780f488SNamhyung Kim ui__error("Could not set realtime priority.\n"); 1278ae256fa2SJiri Olsa goto out_join; 127986470930SIngo Molnar } 128086470930SIngo Molnar } 128186470930SIngo Molnar 1282ff27a06aSDavid Miller /* Wait for a minimal set of events before starting the snapshot */ 1283ff27a06aSDavid Miller perf_evlist__poll(top->evlist, 100); 1284ff27a06aSDavid Miller 1285ff27a06aSDavid Miller perf_top__mmap_read(top); 1286ff27a06aSDavid Miller 128711859e82SArnaldo Carvalho de Melo while (!done) { 12881758af10SArnaldo Carvalho de Melo u64 hits = top->samples; 128986470930SIngo Molnar 12901758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 129186470930SIngo Molnar 1292ebebbf08SKan Liang if (opts->overwrite || (hits == top->samples)) 1293f66a889dSArnaldo Carvalho de Melo ret = perf_evlist__poll(top->evlist, 100); 1294b135e5eeSJiri Olsa 1295b135e5eeSJiri Olsa if (resize) { 1296b135e5eeSJiri Olsa perf_top__resize(top); 1297b135e5eeSJiri Olsa resize = 0; 1298b135e5eeSJiri Olsa } 129986470930SIngo Molnar } 130086470930SIngo Molnar 130111859e82SArnaldo Carvalho de Melo ret = 0; 1302ae256fa2SJiri Olsa out_join: 1303ae256fa2SJiri Olsa pthread_join(thread, NULL); 130416c66bc1SJiri Olsa out_join_thread: 130594ad6e7eSJiri Olsa pthread_cond_signal(&top->qe.cond); 130616c66bc1SJiri Olsa pthread_join(thread_process, NULL); 130711859e82SArnaldo Carvalho de Melo return ret; 130819d4ac3cSArnaldo Carvalho de Melo } 130919d4ac3cSArnaldo Carvalho de Melo 131019d4ac3cSArnaldo Carvalho de Melo static int 1311ae779a63SJiri Olsa callchain_opt(const struct option *opt, const char *arg, int unset) 1312ae779a63SJiri Olsa { 1313ae779a63SJiri Olsa symbol_conf.use_callchain = true; 1314ae779a63SJiri Olsa return record_callchain_opt(opt, arg, unset); 1315ae779a63SJiri Olsa } 1316ae779a63SJiri Olsa 1317ae779a63SJiri Olsa static int 13181758af10SArnaldo Carvalho de Melo parse_callchain_opt(const struct option *opt, const char *arg, int unset) 131919d4ac3cSArnaldo Carvalho de Melo { 13202ddd5c04SArnaldo Carvalho de Melo struct callchain_param *callchain = opt->value; 1321a2c10d39SNamhyung Kim 13222ddd5c04SArnaldo Carvalho de Melo callchain->enabled = !unset; 13232ddd5c04SArnaldo Carvalho de Melo callchain->record_mode = CALLCHAIN_FP; 1324a2c10d39SNamhyung Kim 1325a2c10d39SNamhyung Kim /* 1326a2c10d39SNamhyung Kim * --no-call-graph 1327a2c10d39SNamhyung Kim */ 1328a2c10d39SNamhyung Kim if (unset) { 1329a2c10d39SNamhyung Kim symbol_conf.use_callchain = false; 13302ddd5c04SArnaldo Carvalho de Melo callchain->record_mode = CALLCHAIN_NONE; 1331a2c10d39SNamhyung Kim return 0; 1332a2c10d39SNamhyung Kim } 1333a2c10d39SNamhyung Kim 1334a2c10d39SNamhyung Kim return parse_callchain_top_opt(arg); 133586470930SIngo Molnar } 133686470930SIngo Molnar 1337b8cbb349SWang Nan static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused) 1338eb853e80SJiri Olsa { 1339a3a4a3b3SYisheng Xie if (!strcmp(var, "top.call-graph")) { 1340a3a4a3b3SYisheng Xie var = "call-graph.record-mode"; 1341a3a4a3b3SYisheng Xie return perf_default_config(var, value, cb); 1342a3a4a3b3SYisheng Xie } 1343104ac991SNamhyung Kim if (!strcmp(var, "top.children")) { 1344104ac991SNamhyung Kim symbol_conf.cumulate_callchain = perf_config_bool(var, value); 1345104ac991SNamhyung Kim return 0; 1346104ac991SNamhyung Kim } 1347eb853e80SJiri Olsa 1348b8cbb349SWang Nan return 0; 1349eb853e80SJiri Olsa } 1350eb853e80SJiri Olsa 1351fa5df943SNamhyung Kim static int 1352fa5df943SNamhyung Kim parse_percent_limit(const struct option *opt, const char *arg, 1353fa5df943SNamhyung Kim int unset __maybe_unused) 1354fa5df943SNamhyung Kim { 1355fa5df943SNamhyung Kim struct perf_top *top = opt->value; 1356fa5df943SNamhyung Kim 1357fa5df943SNamhyung Kim top->min_percent = strtof(arg, NULL); 1358fa5df943SNamhyung Kim return 0; 1359fa5df943SNamhyung Kim } 1360fa5df943SNamhyung Kim 136176a26549SNamhyung Kim const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP 136276a26549SNamhyung Kim "\n\t\t\t\tDefault: fp,graph,0.5,caller,function"; 1363a2c10d39SNamhyung Kim 1364b0ad8ea6SArnaldo Carvalho de Melo int cmd_top(int argc, const char **argv) 13651758af10SArnaldo Carvalho de Melo { 136616ad2ffbSNamhyung Kim char errbuf[BUFSIZ]; 13671758af10SArnaldo Carvalho de Melo struct perf_top top = { 13681758af10SArnaldo Carvalho de Melo .count_filter = 5, 13691758af10SArnaldo Carvalho de Melo .delay_secs = 2, 13702376c67aSArnaldo Carvalho de Melo .record_opts = { 13712376c67aSArnaldo Carvalho de Melo .mmap_pages = UINT_MAX, 13722376c67aSArnaldo Carvalho de Melo .user_freq = UINT_MAX, 13732376c67aSArnaldo Carvalho de Melo .user_interval = ULLONG_MAX, 1374447a6013SArnaldo Carvalho de Melo .freq = 4000, /* 4 KHz */ 1375d1cb9fceSNamhyung Kim .target = { 1376d1cb9fceSNamhyung Kim .uses_mmap = true, 1377d1cb9fceSNamhyung Kim }, 1378218d6111SArnaldo Carvalho de Melo /* 1379218d6111SArnaldo Carvalho de Melo * FIXME: This will lose PERF_RECORD_MMAP and other metadata 1380218d6111SArnaldo Carvalho de Melo * when we pause, fix that and reenable. Probably using a 1381218d6111SArnaldo Carvalho de Melo * separate evlist with a dummy event, i.e. a non-overwrite 1382218d6111SArnaldo Carvalho de Melo * ring buffer just for metadata events, while PERF_RECORD_SAMPLE 1383218d6111SArnaldo Carvalho de Melo * stays in overwrite mode. -acme 1384218d6111SArnaldo Carvalho de Melo * */ 1385218d6111SArnaldo Carvalho de Melo .overwrite = 0, 138616c66bc1SJiri Olsa .sample_time = true, 13871e6db2eeSJiri Olsa .sample_time_set = true, 13882376c67aSArnaldo Carvalho de Melo }, 1389029c75e5SArnaldo Carvalho de Melo .max_stack = sysctl__max_stack(), 1390982d410bSArnaldo Carvalho de Melo .annotation_opts = annotation__default_options, 13910c6b4994SKan Liang .nr_threads_synthesize = UINT_MAX, 13921758af10SArnaldo Carvalho de Melo }; 1393b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top.record_opts; 1394602ad878SArnaldo Carvalho de Melo struct target *target = &opts->target; 13951758af10SArnaldo Carvalho de Melo const struct option options[] = { 13968c3e10ebSArnaldo Carvalho de Melo OPT_CALLBACK('e', "event", &top.evlist, "event", 139786470930SIngo Molnar "event selector. use 'perf list' to list available events", 1398f120f9d5SJiri Olsa parse_events_option), 13992376c67aSArnaldo Carvalho de Melo OPT_U64('c', "count", &opts->user_interval, "event period to sample"), 14002376c67aSArnaldo Carvalho de Melo OPT_STRING('p', "pid", &target->pid, "pid", 1401d6d901c2SZhang, Yanmin "profile events on existing process id"), 14022376c67aSArnaldo Carvalho de Melo OPT_STRING('t', "tid", &target->tid, "tid", 1403d6d901c2SZhang, Yanmin "profile events on existing thread id"), 14042376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('a', "all-cpus", &target->system_wide, 140586470930SIngo Molnar "system-wide collection from all CPUs"), 14062376c67aSArnaldo Carvalho de Melo OPT_STRING('C', "cpu", &target->cpu_list, "cpu", 1407c45c6ea2SStephane Eranian "list of cpus to monitor"), 1408b32d133aSArnaldo Carvalho de Melo OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1409b32d133aSArnaldo Carvalho de Melo "file", "vmlinux pathname"), 1410fc2be696SWilly Tarreau OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, 1411fc2be696SWilly Tarreau "don't load vmlinux even if found"), 14121b3aae90SArnaldo Carvalho de Melo OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, 14131b3aae90SArnaldo Carvalho de Melo "file", "kallsyms pathname"), 14148c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, 14158ffcda17SArnaldo Carvalho de Melo "hide kernel symbols"), 1416994a1f78SJiri Olsa OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", 1417994a1f78SJiri Olsa "number of mmap data pages", 1418994a1f78SJiri Olsa perf_evlist__parse_mmap_pages), 14191758af10SArnaldo Carvalho de Melo OPT_INTEGER('r', "realtime", &top.realtime_prio, 142086470930SIngo Molnar "collect data with this RT SCHED_FIFO priority"), 14218c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('d', "delay", &top.delay_secs, 142286470930SIngo Molnar "number of seconds to delay between refreshes"), 14231758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, 142486470930SIngo Molnar "dump the symbol table used for profiling"), 14258c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('f', "count-filter", &top.count_filter, 142686470930SIngo Molnar "only display functions with more events than this"), 1427bf80669eSDavid Ahern OPT_BOOLEAN(0, "group", &opts->group, 142886470930SIngo Molnar "put the counters into a counter group"), 14292376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, 14302376c67aSArnaldo Carvalho de Melo "child tasks do not inherit counters"), 14311758af10SArnaldo Carvalho de Melo OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", 14326cff0e8dSKirill Smelkov "symbol to annotate"), 14332376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), 14347831bf23SArnaldo Carvalho de Melo OPT_CALLBACK('F', "freq", &top.record_opts, "freq or 'max'", 14357831bf23SArnaldo Carvalho de Melo "profile at this frequency", 14367831bf23SArnaldo Carvalho de Melo record__parse_freq), 14378c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('E', "entries", &top.print_entries, 143886470930SIngo Molnar "display this many functions"), 14398c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, 14408ffcda17SArnaldo Carvalho de Melo "hide user symbols"), 14411758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), 14421758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), 1443c0555642SIan Munsie OPT_INCR('v', "verbose", &verbose, 14443da297a6SIngo Molnar "be more verbose (show counter open errors, etc)"), 1445ab81f3fdSArnaldo Carvalho de Melo OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 1446a2ce067eSNamhyung Kim "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." 1447a2ce067eSNamhyung Kim " Please refer the man page for the complete list."), 14486fe8c26dSNamhyung Kim OPT_STRING(0, "fields", &field_order, "key[,keys...]", 14496fe8c26dSNamhyung Kim "output field(s): overhead, period, sample plus all of sort keys"), 1450ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 1451ab81f3fdSArnaldo Carvalho de Melo "Show a column with the number of samples"), 14522ddd5c04SArnaldo Carvalho de Melo OPT_CALLBACK_NOOPT('g', NULL, &callchain_param, 1453a2c10d39SNamhyung Kim NULL, "enables call-graph recording and display", 1454ae779a63SJiri Olsa &callchain_opt), 14552ddd5c04SArnaldo Carvalho de Melo OPT_CALLBACK(0, "call-graph", &callchain_param, 145676a26549SNamhyung Kim "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]", 1457a2c10d39SNamhyung Kim top_callchain_help, &parse_callchain_opt), 14581432ec34SNamhyung Kim OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, 14591432ec34SNamhyung Kim "Accumulate callchains of children and show total overhead as well"), 14605dbb6e81SWaiman Long OPT_INTEGER(0, "max-stack", &top.max_stack, 14615dbb6e81SWaiman Long "Set the maximum stack depth when parsing the callchain. " 14624cb93446SArnaldo Carvalho de Melo "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), 1463b21484f1SGreg Price OPT_CALLBACK(0, "ignore-callees", NULL, "regex", 1464b21484f1SGreg Price "ignore callees of these functions in call graphs", 1465b21484f1SGreg Price report_parse_ignore_callees_opt), 1466ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 1467ab81f3fdSArnaldo Carvalho de Melo "Show a column with the sum of periods"), 1468ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 1469ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these dsos"), 1470ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1471ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these comms"), 1472ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1473ab81f3fdSArnaldo Carvalho de Melo "only consider these symbols"), 14741eddd9e4SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "source", &top.annotation_opts.annotate_src, 147564c6f0c7SArnaldo Carvalho de Melo "Interleave source code with assembly code (default)"), 14761eddd9e4SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "asm-raw", &top.annotation_opts.show_asm_raw, 147764c6f0c7SArnaldo Carvalho de Melo "Display raw encoding of assembly instructions (default)"), 1478763122adSAvi Kivity OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, 1479763122adSAvi Kivity "Enable kernel symbol demangling"), 1480ee7a112fSSong Liu OPT_BOOLEAN(0, "no-bpf-event", &top.record_opts.no_bpf_event, "do not record bpf events"), 1481f178fd2dSArnaldo Carvalho de Melo OPT_STRING(0, "objdump", &top.annotation_opts.objdump_path, "path", 14820d3942dbSSukadev Bhattiprolu "objdump binary to use for disassembly and annotations"), 1483a47e843eSArnaldo Carvalho de Melo OPT_STRING('M', "disassembler-style", &top.annotation_opts.disassembler_style, "disassembler style", 148464c6f0c7SArnaldo Carvalho de Melo "Specify disassembler style (e.g. -M intel for intel syntax)"), 14852376c67aSArnaldo Carvalho de Melo OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), 1486fa5df943SNamhyung Kim OPT_CALLBACK(0, "percent-limit", &top, "percent", 1487fa5df943SNamhyung Kim "Don't show entries under that percent", parse_percent_limit), 148833db4568SNamhyung Kim OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", 148933db4568SNamhyung Kim "How to display percentage of filtered entries", parse_filter_percentage), 1490cf59002fSNamhyung Kim OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, 1491cf59002fSNamhyung Kim "width[,width...]", 1492cf59002fSNamhyung Kim "don't try to adjust column width, use these fixed values"), 14933fcb10e4SMark Drayton OPT_UINTEGER(0, "proc-map-timeout", &proc_map_timeout, 14949d9cad76SKan Liang "per thread proc mmap processing timeout in ms"), 1495a18b027eSAndi Kleen OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack, 1496a18b027eSAndi Kleen "branch any", "sample any taken branches", 1497a18b027eSAndi Kleen parse_branch_stack), 1498a18b027eSAndi Kleen OPT_CALLBACK('j', "branch-filter", &opts->branch_stack, 1499a18b027eSAndi Kleen "branch filter mask", "branch stack filter modes", 1500a18b027eSAndi Kleen parse_branch_stack), 1501053a3989SNamhyung Kim OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, 1502053a3989SNamhyung Kim "Show raw trace event output (do not use print fmt or plugins)"), 1503c92fcfdeSNamhyung Kim OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy, 1504c92fcfdeSNamhyung Kim "Show entries in a hierarchy"), 15054e303fbeSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "overwrite", &top.record_opts.overwrite, 1506218d6111SArnaldo Carvalho de Melo "Use a backward ring buffer, default: no"), 1507868a8329SKrister Johansen OPT_BOOLEAN(0, "force", &symbol_conf.force, "don't complain, do it"), 15080c6b4994SKan Liang OPT_UINTEGER(0, "num-thread-synthesize", &top.nr_threads_synthesize, 15090c6b4994SKan Liang "number of thread to run event synthesize"), 1510a0c0a4acSNamhyung Kim OPT_BOOLEAN(0, "namespaces", &opts->record_namespaces, 1511a0c0a4acSNamhyung Kim "Record namespaces events"), 151286470930SIngo Molnar OPT_END() 151386470930SIngo Molnar }; 151463503dbaSJiri Olsa struct evlist *sb_evlist = NULL; 1515be772842SArnaldo Carvalho de Melo const char * const top_usage[] = { 1516be772842SArnaldo Carvalho de Melo "perf top [<options>]", 1517be772842SArnaldo Carvalho de Melo NULL 1518be772842SArnaldo Carvalho de Melo }; 1519a635fc51SArnaldo Carvalho de Melo int status = hists__init(); 1520a635fc51SArnaldo Carvalho de Melo 1521a635fc51SArnaldo Carvalho de Melo if (status < 0) 1522a635fc51SArnaldo Carvalho de Melo return status; 152386470930SIngo Molnar 1524982d410bSArnaldo Carvalho de Melo top.annotation_opts.min_pcnt = 5; 1525982d410bSArnaldo Carvalho de Melo top.annotation_opts.context = 4; 1526982d410bSArnaldo Carvalho de Melo 15270f98b11cSJiri Olsa top.evlist = evlist__new(); 15288c3e10ebSArnaldo Carvalho de Melo if (top.evlist == NULL) 1529361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1530361c99a6SArnaldo Carvalho de Melo 1531ecc4c561SArnaldo Carvalho de Melo status = perf_config(perf_top_config, &top); 1532ecc4c561SArnaldo Carvalho de Melo if (status) 1533ecc4c561SArnaldo Carvalho de Melo return status; 1534eb853e80SJiri Olsa 153586470930SIngo Molnar argc = parse_options(argc, argv, options, top_usage, 0); 153686470930SIngo Molnar if (argc) 153786470930SIngo Molnar usage_with_options(top_usage, options); 153886470930SIngo Molnar 15396484d2f9SJiri Olsa if (!top.evlist->core.nr_entries && 154054f8f403SNamhyung Kim perf_evlist__add_default(top.evlist) < 0) { 154154f8f403SNamhyung Kim pr_err("Not enough memory for event selector list\n"); 154254f8f403SNamhyung Kim goto out_delete_evlist; 154354f8f403SNamhyung Kim } 154454f8f403SNamhyung Kim 1545c92fcfdeSNamhyung Kim if (symbol_conf.report_hierarchy) { 1546c92fcfdeSNamhyung Kim /* disable incompatible options */ 1547c92fcfdeSNamhyung Kim symbol_conf.event_group = false; 1548c92fcfdeSNamhyung Kim symbol_conf.cumulate_callchain = false; 1549c92fcfdeSNamhyung Kim 1550c92fcfdeSNamhyung Kim if (field_order) { 1551c92fcfdeSNamhyung Kim pr_err("Error: --hierarchy and --fields options cannot be used together\n"); 1552c92fcfdeSNamhyung Kim parse_options_usage(top_usage, options, "fields", 0); 1553c92fcfdeSNamhyung Kim parse_options_usage(NULL, options, "hierarchy", 0); 1554c92fcfdeSNamhyung Kim goto out_delete_evlist; 1555c92fcfdeSNamhyung Kim } 1556c92fcfdeSNamhyung Kim } 1557c92fcfdeSNamhyung Kim 1558590ac60dSJin Yao if (opts->branch_stack && callchain_param.enabled) 1559590ac60dSJin Yao symbol_conf.show_branchflag_count = true; 1560590ac60dSJin Yao 1561512ae1bdSNamhyung Kim sort__mode = SORT_MODE__TOP; 15623a5714f8SNamhyung Kim /* display thread wants entries to be collapsed in a different tree */ 156352225036SJiri Olsa perf_hpp_list.need_collapse = 1; 15643a5714f8SNamhyung Kim 15653ee60c3bSArnaldo Carvalho de Melo if (top.use_stdio) 15663ee60c3bSArnaldo Carvalho de Melo use_browser = 0; 15673ee60c3bSArnaldo Carvalho de Melo else if (top.use_tui) 15683ee60c3bSArnaldo Carvalho de Melo use_browser = 1; 15693ee60c3bSArnaldo Carvalho de Melo 15703ee60c3bSArnaldo Carvalho de Melo setup_browser(false); 15713ee60c3bSArnaldo Carvalho de Melo 157240184c46SNamhyung Kim if (setup_sorting(top.evlist) < 0) { 15736fe8c26dSNamhyung Kim if (sort_order) 15746fe8c26dSNamhyung Kim parse_options_usage(top_usage, options, "s", 1); 15756fe8c26dSNamhyung Kim if (field_order) 15766fe8c26dSNamhyung Kim parse_options_usage(sort_order ? NULL : top_usage, 15776fe8c26dSNamhyung Kim options, "fields", 0); 15786fe8c26dSNamhyung Kim goto out_delete_evlist; 15796fe8c26dSNamhyung Kim } 158022af969eSNamhyung Kim 1581602ad878SArnaldo Carvalho de Melo status = target__validate(target); 158216ad2ffbSNamhyung Kim if (status) { 1583602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1584ea432a8bSIngo Molnar ui__warning("%s\n", errbuf); 158516ad2ffbSNamhyung Kim } 15864bd0f2d2SNamhyung Kim 1587602ad878SArnaldo Carvalho de Melo status = target__parse_uid(target); 158816ad2ffbSNamhyung Kim if (status) { 158916ad2ffbSNamhyung Kim int saved_errno = errno; 159016ad2ffbSNamhyung Kim 1591602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1592ea432a8bSIngo Molnar ui__error("%s\n", errbuf); 159316ad2ffbSNamhyung Kim 159416ad2ffbSNamhyung Kim status = -saved_errno; 15950d37aa34SArnaldo Carvalho de Melo goto out_delete_evlist; 159616ad2ffbSNamhyung Kim } 15970d37aa34SArnaldo Carvalho de Melo 1598602ad878SArnaldo Carvalho de Melo if (target__none(target)) 15992376c67aSArnaldo Carvalho de Melo target->system_wide = true; 160010b47d54SArnaldo Carvalho de Melo 1601f8a5c0b2SArnaldo Carvalho de Melo if (perf_evlist__create_maps(top.evlist, target) < 0) { 1602f8a5c0b2SArnaldo Carvalho de Melo ui__error("Couldn't create thread/CPU maps: %s\n", 1603c8b5f2c9SArnaldo Carvalho de Melo errno == ENOENT ? "No such process" : str_error_r(errno, errbuf, sizeof(errbuf))); 1604f8a5c0b2SArnaldo Carvalho de Melo goto out_delete_evlist; 1605f8a5c0b2SArnaldo Carvalho de Melo } 16067e2ed097SArnaldo Carvalho de Melo 16078c3e10ebSArnaldo Carvalho de Melo if (top.delay_secs < 1) 16088c3e10ebSArnaldo Carvalho de Melo top.delay_secs = 1; 160986470930SIngo Molnar 1610b4006796SArnaldo Carvalho de Melo if (record_opts__config(opts)) { 16112376c67aSArnaldo Carvalho de Melo status = -EINVAL; 161203ad9747SArnaldo Carvalho de Melo goto out_delete_evlist; 161369aad6f1SArnaldo Carvalho de Melo } 161469aad6f1SArnaldo Carvalho de Melo 16150c21f736SArnaldo Carvalho de Melo top.sym_evsel = perf_evlist__first(top.evlist); 1616cc841580SArnaldo Carvalho de Melo 1617e3815264SArnaldo Carvalho de Melo if (!callchain_param.enabled) { 16181432ec34SNamhyung Kim symbol_conf.cumulate_callchain = false; 16191432ec34SNamhyung Kim perf_hpp__cancel_cumulate(); 16201432ec34SNamhyung Kim } 16211432ec34SNamhyung Kim 1622792aeafaSNamhyung Kim if (symbol_conf.cumulate_callchain && !callchain_param.order_set) 1623792aeafaSNamhyung Kim callchain_param.order = ORDER_CALLER; 1624792aeafaSNamhyung Kim 1625b01141f4SArnaldo Carvalho de Melo status = symbol__annotation_init(); 1626b01141f4SArnaldo Carvalho de Melo if (status < 0) 1627b01141f4SArnaldo Carvalho de Melo goto out_delete_evlist; 162869aad6f1SArnaldo Carvalho de Melo 16297f0b6fdeSArnaldo Carvalho de Melo annotation_config__init(); 16307f0b6fdeSArnaldo Carvalho de Melo 163169aad6f1SArnaldo Carvalho de Melo symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); 163270c819e4SChangbin Du status = symbol__init(NULL); 163370c819e4SChangbin Du if (status < 0) 163470c819e4SChangbin Du goto out_delete_evlist; 163569aad6f1SArnaldo Carvalho de Melo 163608e71542SNamhyung Kim sort__setup_elide(stdout); 1637ab81f3fdSArnaldo Carvalho de Melo 16381758af10SArnaldo Carvalho de Melo get_term_dimensions(&top.winsize); 16398c3e10ebSArnaldo Carvalho de Melo if (top.print_entries == 0) { 16401758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(&top); 1641244a1086SJiri Olsa signal(SIGWINCH, winch_sig); 16423b6ed988SArnaldo Carvalho de Melo } 16433b6ed988SArnaldo Carvalho de Melo 16440dba9e4bSChangbin Du top.session = perf_session__new(NULL, false, NULL); 16450dba9e4bSChangbin Du if (top.session == NULL) { 16460dba9e4bSChangbin Du status = -1; 16470dba9e4bSChangbin Du goto out_delete_evlist; 16480dba9e4bSChangbin Du } 16490dba9e4bSChangbin Du 1650d56354dcSSong Liu if (!top.record_opts.no_bpf_event) 1651d56354dcSSong Liu bpf_event__add_sb_event(&sb_evlist, &perf_env); 1652d56354dcSSong Liu 1653657ee553SSong Liu if (perf_evlist__start_sb_thread(sb_evlist, target)) { 1654657ee553SSong Liu pr_debug("Couldn't start the BPF side band thread:\nBPF programs starting from now on won't be annotatable\n"); 1655657ee553SSong Liu opts->no_bpf_event = true; 1656657ee553SSong Liu } 1657657ee553SSong Liu 16581758af10SArnaldo Carvalho de Melo status = __cmd_top(&top); 1659806fb630SArnaldo Carvalho de Melo 1660657ee553SSong Liu if (!opts->no_bpf_event) 1661657ee553SSong Liu perf_evlist__stop_sb_thread(sb_evlist); 1662657ee553SSong Liu 16630d37aa34SArnaldo Carvalho de Melo out_delete_evlist: 1664c12995a5SJiri Olsa evlist__delete(top.evlist); 16650dba9e4bSChangbin Du perf_session__delete(top.session); 166669aad6f1SArnaldo Carvalho de Melo 166769aad6f1SArnaldo Carvalho de Melo return status; 166886470930SIngo Molnar } 1669