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 9069176896SIan Rogers static volatile sig_atomic_t done; 9169176896SIan Rogers static volatile sig_atomic_t 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; 11763df0e4bSIan Rogers struct dso *dso; 11836532461SArnaldo Carvalho de Melo int err = -1; 119923c42c1SMike Galbraith 120ab81f3fdSArnaldo Carvalho de Melo if (!he || !he->ms.sym) 121b0a9ab62SArnaldo Carvalho de Melo return -1; 122b0a9ab62SArnaldo Carvalho de Melo 123111442cfSLeo Yan evsel = hists_to_evsel(he->hists); 124111442cfSLeo Yan 125ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 126ab81f3fdSArnaldo Carvalho de Melo map = he->ms.map; 12763df0e4bSIan Rogers dso = map__dso(map); 128b0a9ab62SArnaldo Carvalho de Melo 129b0a9ab62SArnaldo Carvalho de Melo /* 130b0a9ab62SArnaldo Carvalho de Melo * We can't annotate with just /proc/kallsyms 131b0a9ab62SArnaldo Carvalho de Melo */ 132ee756ef7SIan Rogers if (dso__symtab_type(dso) == DSO_BINARY_TYPE__KALLSYMS && !dso__is_kcore(dso)) { 133ce6f4fabSArnaldo Carvalho de Melo pr_err("Can't annotate %s: No vmlinux file was found in the " 134ce6f4fabSArnaldo Carvalho de Melo "path\n", sym->name); 135ce6f4fabSArnaldo Carvalho de Melo sleep(1); 136b0a9ab62SArnaldo Carvalho de Melo return -1; 137b269876cSArnaldo Carvalho de Melo } 138b269876cSArnaldo Carvalho de Melo 139ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 1402e9f9d4aSIan Rogers annotation__lock(notes); 141923c42c1SMike Galbraith 1426484d2f9SJiri Olsa if (!symbol__hists(sym, top->evlist->core.nr_entries)) { 1432e9f9d4aSIan Rogers annotation__unlock(notes); 14436532461SArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 14536532461SArnaldo Carvalho de Melo sym->name); 146ce6f4fabSArnaldo Carvalho de Melo sleep(1); 147c97cf422SArnaldo Carvalho de Melo return err; 148923c42c1SMike Galbraith } 14936532461SArnaldo Carvalho de Melo 15041fd3cacSNamhyung Kim err = symbol__annotate(&he->ms, evsel, NULL); 15136532461SArnaldo Carvalho de Melo if (err == 0) { 1521758af10SArnaldo Carvalho de Melo top->sym_filter_entry = he; 153ee51d851SArnaldo Carvalho de Melo } else { 154ee51d851SArnaldo Carvalho de Melo char msg[BUFSIZ]; 15529754894SArnaldo Carvalho de Melo symbol__strerror_disassemble(&he->ms, err, msg, sizeof(msg)); 156ee51d851SArnaldo Carvalho de Melo pr_err("Couldn't annotate %s: %s\n", sym->name, msg); 15736532461SArnaldo Carvalho de Melo } 158c97cf422SArnaldo Carvalho de Melo 1592e9f9d4aSIan Rogers annotation__unlock(notes); 16036532461SArnaldo Carvalho de Melo return err; 161923c42c1SMike Galbraith } 162923c42c1SMike Galbraith 163ab81f3fdSArnaldo Carvalho de Melo static void __zero_source_counters(struct hist_entry *he) 164923c42c1SMike Galbraith { 165ab81f3fdSArnaldo Carvalho de Melo struct symbol *sym = he->ms.sym; 16636532461SArnaldo Carvalho de Melo symbol__annotate_zero_histograms(sym); 167923c42c1SMike Galbraith } 168923c42c1SMike Galbraith 16931d68e7bSArnaldo Carvalho de Melo static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) 17031d68e7bSArnaldo Carvalho de Melo { 17131d68e7bSArnaldo Carvalho de Melo struct utsname uts; 17231d68e7bSArnaldo Carvalho de Melo int err = uname(&uts); 17363df0e4bSIan Rogers struct dso *dso = map__dso(map); 17431d68e7bSArnaldo Carvalho de Melo 17531d68e7bSArnaldo Carvalho de Melo ui__warning("Out of bounds address found:\n\n" 17631d68e7bSArnaldo Carvalho de Melo "Addr: %" PRIx64 "\n" 17731d68e7bSArnaldo Carvalho de Melo "DSO: %s %c\n" 17831d68e7bSArnaldo Carvalho de Melo "Map: %" PRIx64 "-%" PRIx64 "\n" 17931d68e7bSArnaldo Carvalho de Melo "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" 18031d68e7bSArnaldo Carvalho de Melo "Arch: %s\n" 18131d68e7bSArnaldo Carvalho de Melo "Kernel: %s\n" 18231d68e7bSArnaldo Carvalho de Melo "Tools: %s\n\n" 18331d68e7bSArnaldo Carvalho de Melo "Not all samples will be on the annotation output.\n\n" 18431d68e7bSArnaldo Carvalho de Melo "Please report to linux-kernel@vger.kernel.org\n", 185ee756ef7SIan Rogers ip, dso__long_name(dso), dso__symtab_origin(dso), 186e5116f46SIan Rogers map__start(map), map__end(map), sym->start, sym->end, 18731d68e7bSArnaldo Carvalho de Melo sym->binding == STB_GLOBAL ? 'g' : 18831d68e7bSArnaldo Carvalho de Melo sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, 18931d68e7bSArnaldo Carvalho de Melo err ? "[unknown]" : uts.machine, 19031d68e7bSArnaldo Carvalho de Melo err ? "[unknown]" : uts.release, perf_version_string); 19131d68e7bSArnaldo Carvalho de Melo if (use_browser <= 0) 19231d68e7bSArnaldo Carvalho de Melo sleep(5); 19331d68e7bSArnaldo Carvalho de Melo 194e6a9efceSArnaldo Carvalho de Melo map__set_erange_warned(map, true); 19531d68e7bSArnaldo Carvalho de Melo } 19631d68e7bSArnaldo Carvalho de Melo 1971758af10SArnaldo Carvalho de Melo static void perf_top__record_precise_ip(struct perf_top *top, 1981758af10SArnaldo Carvalho de Melo struct hist_entry *he, 199bab89f6aSTaeung Song struct perf_sample *sample, 20032dcd021SJiri Olsa struct evsel *evsel, u64 ip) 201b40b2122SIan Rogers EXCLUSIVE_LOCKS_REQUIRED(he->hists->lock) 202923c42c1SMike Galbraith { 203ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 204beefb8d0SNamhyung Kim struct symbol *sym = he->ms.sym; 20548c65bdaSNamhyung Kim int err = 0; 206ce6f4fabSArnaldo Carvalho de Melo 207beefb8d0SNamhyung Kim if (sym == NULL || (use_browser == 0 && 208beefb8d0SNamhyung Kim (top->sym_filter_entry == NULL || 209beefb8d0SNamhyung Kim top->sym_filter_entry->ms.sym != sym))) 210923c42c1SMike Galbraith return; 211923c42c1SMike Galbraith 212ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 213ce6f4fabSArnaldo Carvalho de Melo 2142e9f9d4aSIan Rogers if (!annotation__trylock(notes)) 215923c42c1SMike Galbraith return; 216923c42c1SMike Galbraith 217e345f3bdSArnaldo Carvalho de Melo err = hist_entry__inc_addr_samples(he, sample, evsel, ip); 218923c42c1SMike Galbraith 2192e9f9d4aSIan Rogers annotation__unlock(notes); 22031d68e7bSArnaldo Carvalho de Melo 221151ee834SNamhyung Kim if (unlikely(err)) { 2227c50391fSNamhyung Kim /* 2237c50391fSNamhyung Kim * This function is now called with he->hists->lock held. 2247c50391fSNamhyung Kim * Release it before going to sleep. 2257c50391fSNamhyung Kim */ 2268e03bb88SIan Rogers mutex_unlock(&he->hists->lock); 2277c50391fSNamhyung Kim 228e6a9efceSArnaldo Carvalho de Melo if (err == -ERANGE && !map__erange_warned(he->ms.map)) 22931d68e7bSArnaldo Carvalho de Melo ui__warn_map_erange(he->ms.map, sym, ip); 230b66d8c0cSArnaldo Carvalho de Melo else if (err == -ENOMEM) { 231b66d8c0cSArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 232b66d8c0cSArnaldo Carvalho de Melo sym->name); 233b66d8c0cSArnaldo Carvalho de Melo sleep(1); 234b66d8c0cSArnaldo Carvalho de Melo } 2357c50391fSNamhyung Kim 2368e03bb88SIan Rogers mutex_lock(&he->hists->lock); 237923c42c1SMike Galbraith } 238151ee834SNamhyung Kim } 239923c42c1SMike Galbraith 2401758af10SArnaldo Carvalho de Melo static void perf_top__show_details(struct perf_top *top) 241923c42c1SMike Galbraith { 2421758af10SArnaldo Carvalho de Melo struct hist_entry *he = top->sym_filter_entry; 24332dcd021SJiri Olsa struct evsel *evsel; 244ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 245923c42c1SMike Galbraith struct symbol *symbol; 24636532461SArnaldo Carvalho de Melo int more; 247923c42c1SMike Galbraith 248ab81f3fdSArnaldo Carvalho de Melo if (!he) 249923c42c1SMike Galbraith return; 250923c42c1SMike Galbraith 251111442cfSLeo Yan evsel = hists_to_evsel(he->hists); 252111442cfSLeo Yan 253ab81f3fdSArnaldo Carvalho de Melo symbol = he->ms.sym; 254ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(symbol); 255ce6f4fabSArnaldo Carvalho de Melo 2562e9f9d4aSIan Rogers annotation__lock(notes); 257ce6f4fabSArnaldo Carvalho de Melo 258f681d593SJiri Olsa symbol__calc_percent(symbol, evsel); 259f681d593SJiri Olsa 260ce6f4fabSArnaldo Carvalho de Melo if (notes->src == NULL) 261ce6f4fabSArnaldo Carvalho de Melo goto out_unlock; 262923c42c1SMike Galbraith 2638ab2e96dSArnaldo Carvalho de Melo printf("Showing %s for %s\n", evsel__name(top->sym_evsel), symbol->name); 264c9a21a87SNamhyung Kim printf(" Events Pcnt (>=%d%%)\n", annotate_opts.min_pcnt); 265923c42c1SMike Galbraith 26641fd3cacSNamhyung Kim more = symbol__annotate_printf(&he->ms, top->sym_evsel); 2675d484f99SArnaldo Carvalho de Melo 2685d484f99SArnaldo Carvalho de Melo if (top->evlist->enabled) { 2691758af10SArnaldo Carvalho de Melo if (top->zero) 27038fe0e01SJiri Olsa symbol__annotate_zero_histogram(symbol, top->sym_evsel->core.idx); 27136532461SArnaldo Carvalho de Melo else 27238fe0e01SJiri Olsa symbol__annotate_decay_histogram(symbol, top->sym_evsel->core.idx); 2735d484f99SArnaldo Carvalho de Melo } 27436532461SArnaldo Carvalho de Melo if (more != 0) 275923c42c1SMike Galbraith printf("%d lines not displayed, maybe increase display entries [e]\n", more); 276ce6f4fabSArnaldo Carvalho de Melo out_unlock: 2772e9f9d4aSIan Rogers annotation__unlock(notes); 278923c42c1SMike Galbraith } 27986470930SIngo Molnar 280ea4385f8SNamhyung Kim static void perf_top__resort_hists(struct perf_top *t) 28140d81772SArnaldo Carvalho de Melo { 282ea4385f8SNamhyung Kim struct evlist *evlist = t->evlist; 28340d81772SArnaldo Carvalho de Melo struct evsel *pos; 28440d81772SArnaldo Carvalho de Melo 28540d81772SArnaldo Carvalho de Melo evlist__for_each_entry(evlist, pos) { 28640d81772SArnaldo Carvalho de Melo struct hists *hists = evsel__hists(pos); 28740d81772SArnaldo Carvalho de Melo 288be5863b7SNamhyung Kim /* 289be5863b7SNamhyung Kim * unlink existing entries so that they can be linked 290be5863b7SNamhyung Kim * in a correct order in hists__match() below. 291be5863b7SNamhyung Kim */ 292be5863b7SNamhyung Kim hists__unlink(hists); 293be5863b7SNamhyung Kim 294ea4385f8SNamhyung Kim if (evlist->enabled) { 295ea4385f8SNamhyung Kim if (t->zero) { 296ea4385f8SNamhyung Kim hists__delete_entries(hists); 297ea4385f8SNamhyung Kim } else { 298ea4385f8SNamhyung Kim hists__decay_entries(hists, t->hide_user_symbols, 299ea4385f8SNamhyung Kim t->hide_kernel_symbols); 300ea4385f8SNamhyung Kim } 301ea4385f8SNamhyung Kim } 302ea4385f8SNamhyung Kim 30340d81772SArnaldo Carvalho de Melo hists__collapse_resort(hists, NULL); 30440d81772SArnaldo Carvalho de Melo 30540d81772SArnaldo Carvalho de Melo /* Non-group events are considered as leader */ 306c754c382SArnaldo Carvalho de Melo if (symbol_conf.event_group && !evsel__is_group_leader(pos)) { 307fba7c866SJiri Olsa struct hists *leader_hists = evsel__hists(evsel__leader(pos)); 30840d81772SArnaldo Carvalho de Melo 30940d81772SArnaldo Carvalho de Melo hists__match(leader_hists, hists); 31040d81772SArnaldo Carvalho de Melo hists__link(leader_hists, hists); 31140d81772SArnaldo Carvalho de Melo } 31240d81772SArnaldo Carvalho de Melo } 31340d81772SArnaldo Carvalho de Melo 31440d81772SArnaldo Carvalho de Melo evlist__for_each_entry(evlist, pos) { 31510c513f7SArnaldo Carvalho de Melo evsel__output_resort(pos, NULL); 31640d81772SArnaldo Carvalho de Melo } 31740d81772SArnaldo Carvalho de Melo } 31840d81772SArnaldo Carvalho de Melo 3191758af10SArnaldo Carvalho de Melo static void perf_top__print_sym_table(struct perf_top *top) 32086470930SIngo Molnar { 3218c3e10ebSArnaldo Carvalho de Melo char bf[160]; 3228c3e10ebSArnaldo Carvalho de Melo int printed = 0; 3231758af10SArnaldo Carvalho de Melo const int win_width = top->winsize.ws_col - 1; 32432dcd021SJiri Olsa struct evsel *evsel = top->sym_evsel; 325452ce03bSJiri Olsa struct hists *hists = evsel__hists(evsel); 32686470930SIngo Molnar 32786470930SIngo Molnar puts(CONSOLE_CLEAR); 32886470930SIngo Molnar 3291758af10SArnaldo Carvalho de Melo perf_top__header_snprintf(top, bf, sizeof(bf)); 3308c3e10ebSArnaldo Carvalho de Melo printf("%s\n", bf); 33186470930SIngo Molnar 3321a105f74SArnaldo Carvalho de Melo printf("%-*.*s\n", win_width, win_width, graph_dotted_line); 33386470930SIngo Molnar 334a1ff5b05SKan Liang if (!top->record_opts.overwrite && 335bf8f8587SNamhyung Kim (top->evlist->stats.nr_lost_warned != 336bf8f8587SNamhyung Kim top->evlist->stats.nr_events[PERF_RECORD_LOST])) { 337bf8f8587SNamhyung Kim top->evlist->stats.nr_lost_warned = 338bf8f8587SNamhyung Kim top->evlist->stats.nr_events[PERF_RECORD_LOST]; 3397b27509fSArnaldo Carvalho de Melo color_fprintf(stdout, PERF_COLOR_RED, 3407b27509fSArnaldo Carvalho de Melo "WARNING: LOST %d chunks, Check IO/CPU overload", 341bf8f8587SNamhyung Kim top->evlist->stats.nr_lost_warned); 342ab81f3fdSArnaldo Carvalho de Melo ++printed; 34393fc64f1SArnaldo Carvalho de Melo } 34493fc64f1SArnaldo Carvalho de Melo 3451758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 3461758af10SArnaldo Carvalho de Melo perf_top__show_details(top); 347923c42c1SMike Galbraith return; 348923c42c1SMike Galbraith } 349923c42c1SMike Galbraith 350ea4385f8SNamhyung Kim perf_top__resort_hists(top); 351701937bdSNamhyung Kim 3524ea062edSArnaldo Carvalho de Melo hists__output_recalc_col_len(hists, top->print_entries - printed); 3531a105f74SArnaldo Carvalho de Melo putchar('\n'); 3544ea062edSArnaldo Carvalho de Melo hists__fprintf(hists, false, top->print_entries - printed, win_width, 355e9de7e2fSArnaldo Carvalho de Melo top->min_percent, stdout, !symbol_conf.use_callchain); 35686470930SIngo Molnar } 35786470930SIngo Molnar 358923c42c1SMike Galbraith static void prompt_integer(int *target, const char *msg) 359923c42c1SMike Galbraith { 36079baac8aSSun Haiyong char *buf = NULL, *p; 361923c42c1SMike Galbraith size_t dummy = 0; 362923c42c1SMike Galbraith int tmp; 363923c42c1SMike Galbraith 364923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 365923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 366923c42c1SMike Galbraith return; 367923c42c1SMike Galbraith 368923c42c1SMike Galbraith p = strchr(buf, '\n'); 369923c42c1SMike Galbraith if (p) 370923c42c1SMike Galbraith *p = 0; 371923c42c1SMike Galbraith 372923c42c1SMike Galbraith p = buf; 373923c42c1SMike Galbraith while(*p) { 374923c42c1SMike Galbraith if (!isdigit(*p)) 375923c42c1SMike Galbraith goto out_free; 376923c42c1SMike Galbraith p++; 377923c42c1SMike Galbraith } 378923c42c1SMike Galbraith tmp = strtoul(buf, NULL, 10); 379923c42c1SMike Galbraith *target = tmp; 380923c42c1SMike Galbraith out_free: 381923c42c1SMike Galbraith free(buf); 382923c42c1SMike Galbraith } 383923c42c1SMike Galbraith 384923c42c1SMike Galbraith static void prompt_percent(int *target, const char *msg) 385923c42c1SMike Galbraith { 386923c42c1SMike Galbraith int tmp = 0; 387923c42c1SMike Galbraith 388923c42c1SMike Galbraith prompt_integer(&tmp, msg); 389923c42c1SMike Galbraith if (tmp >= 0 && tmp <= 100) 390923c42c1SMike Galbraith *target = tmp; 391923c42c1SMike Galbraith } 392923c42c1SMike Galbraith 3931758af10SArnaldo Carvalho de Melo static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) 394923c42c1SMike Galbraith { 395cddeeedaSIan Rogers char *buf = NULL, *p; 3961758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; 3974ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(top->sym_evsel); 398ab81f3fdSArnaldo Carvalho de Melo struct rb_node *next; 399923c42c1SMike Galbraith size_t dummy = 0; 400923c42c1SMike Galbraith 401923c42c1SMike Galbraith /* zero counters of active symbol */ 402923c42c1SMike Galbraith if (syme) { 403923c42c1SMike Galbraith __zero_source_counters(syme); 4041758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 405923c42c1SMike Galbraith } 406923c42c1SMike Galbraith 407923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 408923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 409923c42c1SMike Galbraith goto out_free; 410923c42c1SMike Galbraith 411923c42c1SMike Galbraith p = strchr(buf, '\n'); 412923c42c1SMike Galbraith if (p) 413923c42c1SMike Galbraith *p = 0; 414923c42c1SMike Galbraith 4152eb3d689SDavidlohr Bueso next = rb_first_cached(&hists->entries); 416ab81f3fdSArnaldo Carvalho de Melo while (next) { 417ab81f3fdSArnaldo Carvalho de Melo n = rb_entry(next, struct hist_entry, rb_node); 418ab81f3fdSArnaldo Carvalho de Melo if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { 419ab81f3fdSArnaldo Carvalho de Melo found = n; 420923c42c1SMike Galbraith break; 421923c42c1SMike Galbraith } 422ab81f3fdSArnaldo Carvalho de Melo next = rb_next(&n->rb_node); 423923c42c1SMike Galbraith } 424923c42c1SMike Galbraith 425923c42c1SMike Galbraith if (!found) { 42666aeb6d5SKirill Smelkov fprintf(stderr, "Sorry, %s is not active.\n", buf); 427923c42c1SMike Galbraith sleep(1); 428923c42c1SMike Galbraith } else 4291758af10SArnaldo Carvalho de Melo perf_top__parse_source(top, found); 430923c42c1SMike Galbraith 431923c42c1SMike Galbraith out_free: 432923c42c1SMike Galbraith free(buf); 433923c42c1SMike Galbraith } 434923c42c1SMike Galbraith 4351758af10SArnaldo Carvalho de Melo static void perf_top__print_mapped_keys(struct perf_top *top) 436923c42c1SMike Galbraith { 437091bd2e9SMike Galbraith char *name = NULL; 438091bd2e9SMike Galbraith 4391758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 4401758af10SArnaldo Carvalho de Melo struct symbol *sym = top->sym_filter_entry->ms.sym; 441091bd2e9SMike Galbraith name = sym->name; 442091bd2e9SMike Galbraith } 443091bd2e9SMike Galbraith 444091bd2e9SMike Galbraith fprintf(stdout, "\nMapped keys:\n"); 4451758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); 4461758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); 447091bd2e9SMike Galbraith 4486484d2f9SJiri Olsa if (top->evlist->core.nr_entries > 1) 4498ab2e96dSArnaldo Carvalho de Melo fprintf(stdout, "\t[E] active event counter. \t(%s)\n", evsel__name(top->sym_evsel)); 450091bd2e9SMike Galbraith 4511758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); 452091bd2e9SMike Galbraith 453c9a21a87SNamhyung Kim fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", annotate_opts.min_pcnt); 454091bd2e9SMike Galbraith fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); 455091bd2e9SMike Galbraith fprintf(stdout, "\t[S] stop annotation.\n"); 456091bd2e9SMike Galbraith 4578ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4588fce3743SSihyeon Jang "\t[K] hide kernel symbols. \t(%s)\n", 4591758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols ? "yes" : "no"); 4608ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4618ffcda17SArnaldo Carvalho de Melo "\t[U] hide user symbols. \t(%s)\n", 4621758af10SArnaldo Carvalho de Melo top->hide_user_symbols ? "yes" : "no"); 4631758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); 464091bd2e9SMike Galbraith fprintf(stdout, "\t[qQ] quit.\n"); 465091bd2e9SMike Galbraith } 466091bd2e9SMike Galbraith 4671758af10SArnaldo Carvalho de Melo static int perf_top__key_mapped(struct perf_top *top, int c) 468091bd2e9SMike Galbraith { 469091bd2e9SMike Galbraith switch (c) { 470091bd2e9SMike Galbraith case 'd': 471091bd2e9SMike Galbraith case 'e': 472091bd2e9SMike Galbraith case 'f': 473091bd2e9SMike Galbraith case 'z': 474091bd2e9SMike Galbraith case 'q': 475091bd2e9SMike Galbraith case 'Q': 4768ffcda17SArnaldo Carvalho de Melo case 'K': 4778ffcda17SArnaldo Carvalho de Melo case 'U': 4786cff0e8dSKirill Smelkov case 'F': 4796cff0e8dSKirill Smelkov case 's': 4806cff0e8dSKirill Smelkov case 'S': 481091bd2e9SMike Galbraith return 1; 482091bd2e9SMike Galbraith case 'E': 4836484d2f9SJiri Olsa return top->evlist->core.nr_entries > 1 ? 1 : 0; 48483a0944fSIngo Molnar default: 48583a0944fSIngo Molnar break; 486091bd2e9SMike Galbraith } 487091bd2e9SMike Galbraith 488091bd2e9SMike Galbraith return 0; 489923c42c1SMike Galbraith } 490923c42c1SMike Galbraith 49111859e82SArnaldo Carvalho de Melo static bool perf_top__handle_keypress(struct perf_top *top, int c) 492923c42c1SMike Galbraith { 49311859e82SArnaldo Carvalho de Melo bool ret = true; 49411859e82SArnaldo Carvalho de Melo 4951758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) { 496091bd2e9SMike Galbraith struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 4973969cc09SJiri Olsa struct termios save; 498091bd2e9SMike Galbraith 4991758af10SArnaldo Carvalho de Melo perf_top__print_mapped_keys(top); 500091bd2e9SMike Galbraith fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); 501091bd2e9SMike Galbraith fflush(stdout); 502091bd2e9SMike Galbraith 5033969cc09SJiri Olsa set_term_quiet_input(&save); 504091bd2e9SMike Galbraith 505091bd2e9SMike Galbraith poll(&stdin_poll, 1, -1); 506091bd2e9SMike Galbraith c = getc(stdin); 507091bd2e9SMike Galbraith 508091bd2e9SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 5091758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) 51011859e82SArnaldo Carvalho de Melo return ret; 511091bd2e9SMike Galbraith } 512091bd2e9SMike Galbraith 513923c42c1SMike Galbraith switch (c) { 514923c42c1SMike Galbraith case 'd': 5151758af10SArnaldo Carvalho de Melo prompt_integer(&top->delay_secs, "Enter display delay"); 5161758af10SArnaldo Carvalho de Melo if (top->delay_secs < 1) 5171758af10SArnaldo Carvalho de Melo top->delay_secs = 1; 518923c42c1SMike Galbraith break; 519923c42c1SMike Galbraith case 'e': 5201758af10SArnaldo Carvalho de Melo prompt_integer(&top->print_entries, "Enter display entries (lines)"); 5211758af10SArnaldo Carvalho de Melo if (top->print_entries == 0) { 522b135e5eeSJiri Olsa perf_top__resize(top); 523244a1086SJiri Olsa signal(SIGWINCH, winch_sig); 524509605dbSStephane Eranian } else { 5253b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, SIG_DFL); 526509605dbSStephane Eranian } 527923c42c1SMike Galbraith break; 528923c42c1SMike Galbraith case 'E': 5296484d2f9SJiri Olsa if (top->evlist->core.nr_entries > 1) { 530ce2d17caSAkihiro Nagai /* Select 0 as the default event: */ 531ce2d17caSAkihiro Nagai int counter = 0; 532ce2d17caSAkihiro Nagai 533923c42c1SMike Galbraith fprintf(stderr, "\nAvailable events:"); 53469aad6f1SArnaldo Carvalho de Melo 535e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(top->evlist, top->sym_evsel) 53638fe0e01SJiri Olsa fprintf(stderr, "\n\t%d %s", top->sym_evsel->core.idx, evsel__name(top->sym_evsel)); 537923c42c1SMike Galbraith 538ec52d976SArnaldo Carvalho de Melo prompt_integer(&counter, "Enter details event counter"); 539923c42c1SMike Galbraith 5406484d2f9SJiri Olsa if (counter >= top->evlist->core.nr_entries) { 541515dbe48SJiri Olsa top->sym_evsel = evlist__first(top->evlist); 5428ab2e96dSArnaldo Carvalho de Melo fprintf(stderr, "Sorry, no such event, using %s.\n", evsel__name(top->sym_evsel)); 543923c42c1SMike Galbraith sleep(1); 54469aad6f1SArnaldo Carvalho de Melo break; 545923c42c1SMike Galbraith } 546e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(top->evlist, top->sym_evsel) 54738fe0e01SJiri Olsa if (top->sym_evsel->core.idx == counter) 54869aad6f1SArnaldo Carvalho de Melo break; 549ec52d976SArnaldo Carvalho de Melo } else 550515dbe48SJiri Olsa top->sym_evsel = evlist__first(top->evlist); 551923c42c1SMike Galbraith break; 552923c42c1SMike Galbraith case 'f': 5531758af10SArnaldo Carvalho de Melo prompt_integer(&top->count_filter, "Enter display event count filter"); 554923c42c1SMike Galbraith break; 555923c42c1SMike Galbraith case 'F': 556c9a21a87SNamhyung Kim prompt_percent(&annotate_opts.min_pcnt, 5571758af10SArnaldo Carvalho de Melo "Enter details display event filter (percent)"); 558923c42c1SMike Galbraith break; 5598ffcda17SArnaldo Carvalho de Melo case 'K': 5601758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols = !top->hide_kernel_symbols; 5618ffcda17SArnaldo Carvalho de Melo break; 562923c42c1SMike Galbraith case 'q': 563923c42c1SMike Galbraith case 'Q': 564923c42c1SMike Galbraith printf("exiting.\n"); 5651758af10SArnaldo Carvalho de Melo if (top->dump_symtab) 5661758af10SArnaldo Carvalho de Melo perf_session__fprintf_dsos(top->session, stderr); 56711859e82SArnaldo Carvalho de Melo ret = false; 56811859e82SArnaldo Carvalho de Melo break; 569923c42c1SMike Galbraith case 's': 5701758af10SArnaldo Carvalho de Melo perf_top__prompt_symbol(top, "Enter details symbol"); 571923c42c1SMike Galbraith break; 572923c42c1SMike Galbraith case 'S': 5731758af10SArnaldo Carvalho de Melo if (!top->sym_filter_entry) 574923c42c1SMike Galbraith break; 575923c42c1SMike Galbraith else { 5761758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry; 577923c42c1SMike Galbraith 5781758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 579923c42c1SMike Galbraith __zero_source_counters(syme); 580923c42c1SMike Galbraith } 581923c42c1SMike Galbraith break; 5828ffcda17SArnaldo Carvalho de Melo case 'U': 5831758af10SArnaldo Carvalho de Melo top->hide_user_symbols = !top->hide_user_symbols; 5848ffcda17SArnaldo Carvalho de Melo break; 585923c42c1SMike Galbraith case 'z': 5861758af10SArnaldo Carvalho de Melo top->zero = !top->zero; 587923c42c1SMike Galbraith break; 58883a0944fSIngo Molnar default: 58983a0944fSIngo Molnar break; 590923c42c1SMike Galbraith } 59111859e82SArnaldo Carvalho de Melo 59211859e82SArnaldo Carvalho de Melo return ret; 593923c42c1SMike Galbraith } 594923c42c1SMike Galbraith 595ab81f3fdSArnaldo Carvalho de Melo static void perf_top__sort_new_samples(void *arg) 596ab81f3fdSArnaldo Carvalho de Melo { 597ab81f3fdSArnaldo Carvalho de Melo struct perf_top *t = arg; 5984ea062edSArnaldo Carvalho de Melo 599ab81f3fdSArnaldo Carvalho de Melo if (t->evlist->selected != NULL) 600ab81f3fdSArnaldo Carvalho de Melo t->sym_evsel = t->evlist->selected; 601ab81f3fdSArnaldo Carvalho de Melo 602ea4385f8SNamhyung Kim perf_top__resort_hists(t); 603254de74cSJiri Olsa 604d8590430SJiri Olsa if (t->lost || t->drop) 605254de74cSJiri Olsa pr_warning("Too slow to read ring buffer (change period (-c/-F) or limit CPUs (-C)\n"); 606701937bdSNamhyung Kim } 607701937bdSNamhyung Kim 608c94cef4bSJiri Olsa static void stop_top(void) 609c94cef4bSJiri Olsa { 610c94cef4bSJiri Olsa session_done = 1; 611c94cef4bSJiri Olsa done = 1; 612c94cef4bSJiri Olsa } 613c94cef4bSJiri Olsa 6141758af10SArnaldo Carvalho de Melo static void *display_thread_tui(void *arg) 615c0443df1SArnaldo Carvalho de Melo { 61632dcd021SJiri Olsa struct evsel *pos; 6171758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 618ab81f3fdSArnaldo Carvalho de Melo const char *help = "For a higher level overview, try: perf top --sort comm,dso"; 6199783adf7SNamhyung Kim struct hist_browser_timer hbt = { 6209783adf7SNamhyung Kim .timer = perf_top__sort_new_samples, 6219783adf7SNamhyung Kim .arg = top, 6229783adf7SNamhyung Kim .refresh = top->delay_secs, 6239783adf7SNamhyung Kim }; 6242605af0fSJin Yao int ret; 625ab81f3fdSArnaldo Carvalho de Melo 626868a8329SKrister Johansen /* In order to read symbols from other namespaces perf to needs to call 627868a8329SKrister Johansen * setns(2). This isn't permitted if the struct_fs has multiple users. 628868a8329SKrister Johansen * unshare(2) the fs so that we may continue to setns into namespaces 629868a8329SKrister Johansen * that we're observing. 630868a8329SKrister Johansen */ 631868a8329SKrister Johansen unshare(CLONE_FS); 632868a8329SKrister Johansen 6331205a271SArnaldo Carvalho de Melo prctl(PR_SET_NAME, "perf-top-UI", 0, 0, 0); 6341205a271SArnaldo Carvalho de Melo 6352605af0fSJin Yao repeat: 6361758af10SArnaldo Carvalho de Melo perf_top__sort_new_samples(top); 6370d37aa34SArnaldo Carvalho de Melo 6380d37aa34SArnaldo Carvalho de Melo /* 6390d37aa34SArnaldo Carvalho de Melo * Initialize the uid_filter_str, in the future the TUI will allow 640adba1634SIngo Molnar * Zooming in/out UIDs. For now just use whatever the user passed 6410d37aa34SArnaldo Carvalho de Melo * via --uid. 6420d37aa34SArnaldo Carvalho de Melo */ 643e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(top->evlist, pos) { 6444ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(pos); 6454ea062edSArnaldo Carvalho de Melo hists->uid_filter_str = top->record_opts.target.uid_str; 6464ea062edSArnaldo Carvalho de Melo } 6470d37aa34SArnaldo Carvalho de Melo 648f4bd0b4aSArnaldo Carvalho de Melo ret = evlist__tui_browse_hists(top->evlist, help, &hbt, top->min_percent, 64922197fb2SNamhyung Kim &top->session->header.env, !top->record_opts.overwrite); 6502605af0fSJin Yao if (ret == K_RELOAD) { 6512605af0fSJin Yao top->zero = true; 6522605af0fSJin Yao goto repeat; 6532605af0fSJin Yao } else 654c94cef4bSJiri Olsa stop_top(); 6552605af0fSJin Yao 656c0443df1SArnaldo Carvalho de Melo return NULL; 657c0443df1SArnaldo Carvalho de Melo } 658c0443df1SArnaldo Carvalho de Melo 6594a1a9971SJiri Olsa static void display_sig(int sig __maybe_unused) 6604a1a9971SJiri Olsa { 661c94cef4bSJiri Olsa stop_top(); 6624a1a9971SJiri Olsa } 6634a1a9971SJiri Olsa 6644a1a9971SJiri Olsa static void display_setup_sig(void) 6654a1a9971SJiri Olsa { 66609f4d78aSArnaldo Carvalho de Melo signal(SIGSEGV, sighandler_dump_stack); 66709f4d78aSArnaldo Carvalho de Melo signal(SIGFPE, sighandler_dump_stack); 6684a1a9971SJiri Olsa signal(SIGINT, display_sig); 6694a1a9971SJiri Olsa signal(SIGQUIT, display_sig); 6704a1a9971SJiri Olsa signal(SIGTERM, display_sig); 6714a1a9971SJiri Olsa } 6724a1a9971SJiri Olsa 6731758af10SArnaldo Carvalho de Melo static void *display_thread(void *arg) 67486470930SIngo Molnar { 67586470930SIngo Molnar struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 6769398c484SJiri Olsa struct termios save; 6771758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 678923c42c1SMike Galbraith int delay_msecs, c; 67986470930SIngo Molnar 680868a8329SKrister Johansen /* In order to read symbols from other namespaces perf to needs to call 681868a8329SKrister Johansen * setns(2). This isn't permitted if the struct_fs has multiple users. 682868a8329SKrister Johansen * unshare(2) the fs so that we may continue to setns into namespaces 683868a8329SKrister Johansen * that we're observing. 684868a8329SKrister Johansen */ 685868a8329SKrister Johansen unshare(CLONE_FS); 686868a8329SKrister Johansen 6871205a271SArnaldo Carvalho de Melo prctl(PR_SET_NAME, "perf-top-UI", 0, 0, 0); 6881205a271SArnaldo Carvalho de Melo 6894a1a9971SJiri Olsa display_setup_sig(); 6903af6e338SArnaldo Carvalho de Melo pthread__unblock_sigwinch(); 691923c42c1SMike Galbraith repeat: 692b9c4b0f4SArnaldo Carvalho de Melo delay_msecs = top->delay_secs * MSEC_PER_SEC; 6939398c484SJiri Olsa set_term_quiet_input(&save); 694923c42c1SMike Galbraith /* trash return*/ 69529b4f5f1STommi Rantala clearerr(stdin); 69629b4f5f1STommi Rantala if (poll(&stdin_poll, 1, 0) > 0) 697923c42c1SMike Galbraith getc(stdin); 69886470930SIngo Molnar 69911859e82SArnaldo Carvalho de Melo while (!done) { 7001758af10SArnaldo Carvalho de Melo perf_top__print_sym_table(top); 7013af6e338SArnaldo Carvalho de Melo /* 7023af6e338SArnaldo Carvalho de Melo * Either timeout expired or we got an EINTR due to SIGWINCH, 7033af6e338SArnaldo Carvalho de Melo * refresh screen in both cases. 7043af6e338SArnaldo Carvalho de Melo */ 7053af6e338SArnaldo Carvalho de Melo switch (poll(&stdin_poll, 1, delay_msecs)) { 7063af6e338SArnaldo Carvalho de Melo case 0: 7073af6e338SArnaldo Carvalho de Melo continue; 7083af6e338SArnaldo Carvalho de Melo case -1: 7093af6e338SArnaldo Carvalho de Melo if (errno == EINTR) 7103af6e338SArnaldo Carvalho de Melo continue; 711f7a858bfSLiam Howlett fallthrough; 7123af6e338SArnaldo Carvalho de Melo default: 713923c42c1SMike Galbraith c = getc(stdin); 714923c42c1SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 715923c42c1SMike Galbraith 71611859e82SArnaldo Carvalho de Melo if (perf_top__handle_keypress(top, c)) 717923c42c1SMike Galbraith goto repeat; 718c94cef4bSJiri Olsa stop_top(); 71911859e82SArnaldo Carvalho de Melo } 72011859e82SArnaldo Carvalho de Melo } 72186470930SIngo Molnar 7224a1a9971SJiri Olsa tcsetattr(0, TCSAFLUSH, &save); 72386470930SIngo Molnar return NULL; 72486470930SIngo Molnar } 72586470930SIngo Molnar 7267c50391fSNamhyung Kim static int hist_iter__top_callback(struct hist_entry_iter *iter, 7277c50391fSNamhyung Kim struct addr_location *al, bool single, 7287c50391fSNamhyung Kim void *arg) 729b40b2122SIan Rogers EXCLUSIVE_LOCKS_REQUIRED(iter->he->hists->lock) 7307c50391fSNamhyung Kim { 7317c50391fSNamhyung Kim struct perf_top *top = arg; 73232dcd021SJiri Olsa struct evsel *evsel = iter->evsel; 7337c50391fSNamhyung Kim 7342e0453afSJiri Olsa if (perf_hpp_list.sym && single) 735b40b2122SIan Rogers perf_top__record_precise_ip(top, iter->he, iter->sample, evsel, al->addr); 7367c50391fSNamhyung Kim 737a18b027eSAndi Kleen hist__account_cycles(iter->sample->branch_stack, al, iter->sample, 7387841f40aSJin Yao !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY), 7397841f40aSJin Yao NULL); 7407c50391fSNamhyung Kim return 0; 7417c50391fSNamhyung Kim } 7427c50391fSNamhyung Kim 7431758af10SArnaldo Carvalho de Melo static void perf_event__process_sample(struct perf_tool *tool, 7441758af10SArnaldo Carvalho de Melo const union perf_event *event, 74532dcd021SJiri Olsa struct evsel *evsel, 7468d50e5b4SArnaldo Carvalho de Melo struct perf_sample *sample, 747743eb868SArnaldo Carvalho de Melo struct machine *machine) 74886470930SIngo Molnar { 7491758af10SArnaldo Carvalho de Melo struct perf_top *top = container_of(tool, struct perf_top, tool); 7501ed091c4SArnaldo Carvalho de Melo struct addr_location al; 7515b2bb75aSArnaldo Carvalho de Melo 75223346f21SArnaldo Carvalho de Melo if (!machine && perf_guest) { 7536b118e92SDavid Ahern static struct intlist *seen; 7546b118e92SDavid Ahern 7556b118e92SDavid Ahern if (!seen) 756ffe0fb76SArnaldo Carvalho de Melo seen = intlist__new(NULL); 7576b118e92SDavid Ahern 758ef89325fSAdrian Hunter if (!intlist__has_entry(seen, sample->pid)) { 759a1645ce1SZhang, Yanmin pr_err("Can't find guest [%d]'s kernel information\n", 760ef89325fSAdrian Hunter sample->pid); 761ef89325fSAdrian Hunter intlist__add(seen, sample->pid); 7626b118e92SDavid Ahern } 763a1645ce1SZhang, Yanmin return; 764a1645ce1SZhang, Yanmin } 765a1645ce1SZhang, Yanmin 7660c095715SJoerg Roedel if (!machine) { 76711859e82SArnaldo Carvalho de Melo pr_err("%u unprocessable samples recorded.\r", 76875be989aSArnaldo Carvalho de Melo top->session->evlist->stats.nr_unprocessable_samples++); 7690c095715SJoerg Roedel return; 7700c095715SJoerg Roedel } 7710c095715SJoerg Roedel 7728115d60cSArnaldo Carvalho de Melo if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) 7731758af10SArnaldo Carvalho de Melo top->exact_samples++; 7741676b8a0SPeter Zijlstra 7750dd5041cSIan Rogers addr_location__init(&al); 776bb3eb566SArnaldo Carvalho de Melo if (machine__resolve(machine, &al, sample) < 0) 7770dd5041cSIan Rogers goto out; 77886470930SIngo Molnar 77913e0c844SKan Liang if (top->stitch_lbr) 780ee84a303SIan Rogers thread__set_lbr_stitch_enable(al.thread, true); 78113e0c844SKan Liang 782e77a0742SArnaldo Carvalho de Melo if (!machine->kptr_restrict_warned && 7835f6f5580SArnaldo Carvalho de Melo symbol_conf.kptr_restrict && 7845f6f5580SArnaldo Carvalho de Melo al.cpumode == PERF_RECORD_MISC_KERNEL) { 78578e1bc25SArnaldo Carvalho de Melo if (!evlist__exclude_kernel(top->session->evlist)) { 7865f6f5580SArnaldo Carvalho de Melo ui__warning( 7875f6f5580SArnaldo Carvalho de Melo "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" 788d06e5fadSIgor Lubashev "Check /proc/sys/kernel/kptr_restrict and /proc/sys/kernel/perf_event_paranoid.\n\n" 7895f6f5580SArnaldo Carvalho de Melo "Kernel%s samples will not be resolved.\n", 790e94b861aSArnaldo Carvalho de Melo al.map && map__has_symbols(al.map) ? 7915f6f5580SArnaldo Carvalho de Melo " modules" : ""); 7925f6f5580SArnaldo Carvalho de Melo if (use_browser <= 0) 7935f6f5580SArnaldo Carvalho de Melo sleep(5); 794b89a5124SArnaldo Carvalho de Melo } 795e77a0742SArnaldo Carvalho de Melo machine->kptr_restrict_warned = true; 7965f6f5580SArnaldo Carvalho de Melo } 7975f6f5580SArnaldo Carvalho de Melo 79868766bfaSArnaldo Carvalho de Melo if (al.sym == NULL && al.map != NULL) { 799e4a338d0SArnaldo Carvalho de Melo const char *msg = "Kernel samples will not be resolved.\n"; 80072b8fa17SArnaldo Carvalho de Melo /* 80172b8fa17SArnaldo Carvalho de Melo * As we do lazy loading of symtabs we only will know if the 80272b8fa17SArnaldo Carvalho de Melo * specified vmlinux file is invalid when we actually have a 80372b8fa17SArnaldo Carvalho de Melo * hit in kernel space and then try to load it. So if we get 80472b8fa17SArnaldo Carvalho de Melo * here and there are _no_ symbols in the DSO backing the 80572b8fa17SArnaldo Carvalho de Melo * kernel map, bail out. 80672b8fa17SArnaldo Carvalho de Melo * 80772b8fa17SArnaldo Carvalho de Melo * We may never get here, for instance, if we use -K/ 80872b8fa17SArnaldo Carvalho de Melo * --hide-kernel-symbols, even if the user specifies an 80972b8fa17SArnaldo Carvalho de Melo * invalid --vmlinux ;-) 81072b8fa17SArnaldo Carvalho de Melo */ 811e77a0742SArnaldo Carvalho de Melo if (!machine->kptr_restrict_warned && !top->vmlinux_warned && 812e94b861aSArnaldo Carvalho de Melo __map__is_kernel(al.map) && map__has_symbols(al.map)) { 813e4a338d0SArnaldo Carvalho de Melo if (symbol_conf.vmlinux_name) { 81418425f13SArnaldo Carvalho de Melo char serr[256]; 81563df0e4bSIan Rogers 81663df0e4bSIan Rogers dso__strerror_load(map__dso(al.map), serr, sizeof(serr)); 81718425f13SArnaldo Carvalho de Melo ui__warning("The %s file can't be used: %s\n%s", 81818425f13SArnaldo Carvalho de Melo symbol_conf.vmlinux_name, serr, msg); 819e4a338d0SArnaldo Carvalho de Melo } else { 820e4a338d0SArnaldo Carvalho de Melo ui__warning("A vmlinux file was not found.\n%s", 821e4a338d0SArnaldo Carvalho de Melo msg); 822e4a338d0SArnaldo Carvalho de Melo } 823e4a338d0SArnaldo Carvalho de Melo 824e4a338d0SArnaldo Carvalho de Melo if (use_browser <= 0) 825e4a338d0SArnaldo Carvalho de Melo sleep(5); 8261758af10SArnaldo Carvalho de Melo top->vmlinux_warned = true; 82772b8fa17SArnaldo Carvalho de Melo } 82872b8fa17SArnaldo Carvalho de Melo } 82972b8fa17SArnaldo Carvalho de Melo 830b55cc4edSArnaldo Carvalho de Melo if (al.sym == NULL || !al.sym->idle) { 8314ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(evsel); 8327c50391fSNamhyung Kim struct hist_entry_iter iter = { 833063bd936SNamhyung Kim .evsel = evsel, 834063bd936SNamhyung Kim .sample = sample, 8357c50391fSNamhyung Kim .add_entry_cb = hist_iter__top_callback, 8367c50391fSNamhyung Kim }; 83770db7533SArnaldo Carvalho de Melo 8387c50391fSNamhyung Kim if (symbol_conf.cumulate_callchain) 8397c50391fSNamhyung Kim iter.ops = &hist_iter_cumulative; 8407c50391fSNamhyung Kim else 8417c50391fSNamhyung Kim iter.ops = &hist_iter_normal; 84219d4ac3cSArnaldo Carvalho de Melo 8438e03bb88SIan Rogers mutex_lock(&hists->lock); 8447c50391fSNamhyung Kim 845662a9810Stangmeng if (hist_entry_iter__add(&iter, &al, top->max_stack, top) < 0) 846ab81f3fdSArnaldo Carvalho de Melo pr_err("Problem incrementing symbol period, skipping event\n"); 847ab81f3fdSArnaldo Carvalho de Melo 8488e03bb88SIan Rogers mutex_unlock(&hists->lock); 8495807806aSArnaldo Carvalho de Melo } 850ab81f3fdSArnaldo Carvalho de Melo 8510dd5041cSIan Rogers out: 8520dd5041cSIan Rogers addr_location__exit(&al); 85386470930SIngo Molnar } 85486470930SIngo Molnar 855d24e3c98SJiri Olsa static void 856d24e3c98SJiri Olsa perf_top__process_lost(struct perf_top *top, union perf_event *event, 85732dcd021SJiri Olsa struct evsel *evsel) 858d24e3c98SJiri Olsa { 859d24e3c98SJiri Olsa top->lost += event->lost.lost; 860d24e3c98SJiri Olsa top->lost_total += event->lost.lost; 861bf8f8587SNamhyung Kim evsel->evlist->stats.total_lost += event->lost.lost; 862d24e3c98SJiri Olsa } 863d24e3c98SJiri Olsa 864d24e3c98SJiri Olsa static void 865d24e3c98SJiri Olsa perf_top__process_lost_samples(struct perf_top *top, 866d24e3c98SJiri Olsa union perf_event *event, 86732dcd021SJiri Olsa struct evsel *evsel) 868d24e3c98SJiri Olsa { 869d24e3c98SJiri Olsa top->lost += event->lost_samples.lost; 870d24e3c98SJiri Olsa top->lost_total += event->lost_samples.lost; 871bf8f8587SNamhyung Kim evsel->evlist->stats.total_lost_samples += event->lost_samples.lost; 872d24e3c98SJiri Olsa } 873d24e3c98SJiri Olsa 874d63b9f6fSJiri Olsa static u64 last_timestamp; 875d63b9f6fSJiri Olsa 8761758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read_idx(struct perf_top *top, int idx) 87786470930SIngo Molnar { 878ebebbf08SKan Liang struct record_opts *opts = &top->record_opts; 87963503dbaSJiri Olsa struct evlist *evlist = top->evlist; 880a5830532SJiri Olsa struct mmap *md; 8818115d60cSArnaldo Carvalho de Melo union perf_event *event; 88286470930SIngo Molnar 883ebebbf08SKan Liang md = opts->overwrite ? &evlist->overwrite_mmap[idx] : &evlist->mmap[idx]; 8847c4d4182SJiri Olsa if (perf_mmap__read_init(&md->core) < 0) 885ebebbf08SKan Liang return; 886ebebbf08SKan Liang 887151ed5d7SJiri Olsa while ((event = perf_mmap__read_event(&md->core)) != NULL) { 88816c66bc1SJiri Olsa int ret; 88904391debSArnaldo Carvalho de Melo 8902a6599cdSArnaldo Carvalho de Melo ret = evlist__parse_sample_timestamp(evlist, event, &last_timestamp); 89116c66bc1SJiri Olsa if (ret && ret != -1) 892743eb868SArnaldo Carvalho de Melo break; 893743eb868SArnaldo Carvalho de Melo 8942292083fSAlexey Bayduraev ret = ordered_events__queue(top->qe.in, event, last_timestamp, 0, NULL); 89516c66bc1SJiri Olsa if (ret) 89616c66bc1SJiri Olsa break; 89794ad6e7eSJiri Olsa 8987728fa0cSJiri Olsa perf_mmap__consume(&md->core); 89994ad6e7eSJiri Olsa 90094ad6e7eSJiri Olsa if (top->qe.rotate) { 901d8e40b58SIan Rogers mutex_lock(&top->qe.mutex); 90294ad6e7eSJiri Olsa top->qe.rotate = false; 903d8e40b58SIan Rogers cond_signal(&top->qe.cond); 904d8e40b58SIan Rogers mutex_unlock(&top->qe.mutex); 90594ad6e7eSJiri Olsa } 90686470930SIngo Molnar } 907ebebbf08SKan Liang 90832fdc2caSJiri Olsa perf_mmap__read_done(&md->core); 90986470930SIngo Molnar } 91086470930SIngo Molnar 9111758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read(struct perf_top *top) 9122f01190aSFrederic Weisbecker { 913ebebbf08SKan Liang bool overwrite = top->record_opts.overwrite; 91463503dbaSJiri Olsa struct evlist *evlist = top->evlist; 91570db7533SArnaldo Carvalho de Melo int i; 9162f01190aSFrederic Weisbecker 917ebebbf08SKan Liang if (overwrite) 918ade9d208SArnaldo Carvalho de Melo evlist__toggle_bkw_mmap(evlist, BKW_MMAP_DATA_PENDING); 919ebebbf08SKan Liang 920c976ee11SJiri Olsa for (i = 0; i < top->evlist->core.nr_mmaps; i++) 9211758af10SArnaldo Carvalho de Melo perf_top__mmap_read_idx(top, i); 922ebebbf08SKan Liang 923ebebbf08SKan Liang if (overwrite) { 924ade9d208SArnaldo Carvalho de Melo evlist__toggle_bkw_mmap(evlist, BKW_MMAP_EMPTY); 925ade9d208SArnaldo Carvalho de Melo evlist__toggle_bkw_mmap(evlist, BKW_MMAP_RUNNING); 926ebebbf08SKan Liang } 9272f01190aSFrederic Weisbecker } 9282f01190aSFrederic Weisbecker 92963878a53SKan Liang /* 93063878a53SKan Liang * Check per-event overwrite term. 93163878a53SKan Liang * perf top should support consistent term for all events. 93263878a53SKan Liang * - All events don't have per-event term 93363878a53SKan Liang * E.g. "cpu/cpu-cycles/,cpu/instructions/" 93463878a53SKan Liang * Nothing change, return 0. 93563878a53SKan Liang * - All events have same per-event term 93663878a53SKan Liang * E.g. "cpu/cpu-cycles,no-overwrite/,cpu/instructions,no-overwrite/ 93763878a53SKan Liang * Using the per-event setting to replace the opts->overwrite if 93863878a53SKan Liang * they are different, then return 0. 93963878a53SKan Liang * - Events have different per-event term 94063878a53SKan Liang * E.g. "cpu/cpu-cycles,overwrite/,cpu/instructions,no-overwrite/" 94163878a53SKan Liang * Return -1 94263878a53SKan Liang * - Some of the event set per-event term, but some not. 94363878a53SKan Liang * E.g. "cpu/cpu-cycles/,cpu/instructions,no-overwrite/" 94463878a53SKan Liang * Return -1 94563878a53SKan Liang */ 94663878a53SKan Liang static int perf_top__overwrite_check(struct perf_top *top) 94763878a53SKan Liang { 94863878a53SKan Liang struct record_opts *opts = &top->record_opts; 94963503dbaSJiri Olsa struct evlist *evlist = top->evlist; 95035ac0cadSArnaldo Carvalho de Melo struct evsel_config_term *term; 95163878a53SKan Liang struct list_head *config_terms; 95232dcd021SJiri Olsa struct evsel *evsel; 95363878a53SKan Liang int set, overwrite = -1; 95463878a53SKan Liang 95563878a53SKan Liang evlist__for_each_entry(evlist, evsel) { 95663878a53SKan Liang set = -1; 95763878a53SKan Liang config_terms = &evsel->config_terms; 95863878a53SKan Liang list_for_each_entry(term, config_terms, list) { 95935ac0cadSArnaldo Carvalho de Melo if (term->type == EVSEL__CONFIG_TERM_OVERWRITE) 96063878a53SKan Liang set = term->val.overwrite ? 1 : 0; 96163878a53SKan Liang } 96263878a53SKan Liang 96363878a53SKan Liang /* no term for current and previous event (likely) */ 96463878a53SKan Liang if ((overwrite < 0) && (set < 0)) 96563878a53SKan Liang continue; 96663878a53SKan Liang 96763878a53SKan Liang /* has term for both current and previous event, compare */ 96863878a53SKan Liang if ((overwrite >= 0) && (set >= 0) && (overwrite != set)) 96963878a53SKan Liang return -1; 97063878a53SKan Liang 97163878a53SKan Liang /* no term for current event but has term for previous one */ 97263878a53SKan Liang if ((overwrite >= 0) && (set < 0)) 97363878a53SKan Liang return -1; 97463878a53SKan Liang 97563878a53SKan Liang /* has term for current event */ 97663878a53SKan Liang if ((overwrite < 0) && (set >= 0)) { 97763878a53SKan Liang /* if it's first event, set overwrite */ 978515dbe48SJiri Olsa if (evsel == evlist__first(evlist)) 97963878a53SKan Liang overwrite = set; 98063878a53SKan Liang else 98163878a53SKan Liang return -1; 98263878a53SKan Liang } 98363878a53SKan Liang } 98463878a53SKan Liang 98563878a53SKan Liang if ((overwrite >= 0) && (opts->overwrite != overwrite)) 98663878a53SKan Liang opts->overwrite = overwrite; 98763878a53SKan Liang 98863878a53SKan Liang return 0; 98963878a53SKan Liang } 99063878a53SKan Liang 991204721d7SKan Liang static int perf_top_overwrite_fallback(struct perf_top *top, 99232dcd021SJiri Olsa struct evsel *evsel) 993204721d7SKan Liang { 994204721d7SKan Liang struct record_opts *opts = &top->record_opts; 99563503dbaSJiri Olsa struct evlist *evlist = top->evlist; 99632dcd021SJiri Olsa struct evsel *counter; 997204721d7SKan Liang 998204721d7SKan Liang if (!opts->overwrite) 999204721d7SKan Liang return 0; 1000204721d7SKan Liang 1001204721d7SKan Liang /* only fall back when first event fails */ 1002515dbe48SJiri Olsa if (evsel != evlist__first(evlist)) 1003204721d7SKan Liang return 0; 1004204721d7SKan Liang 1005204721d7SKan Liang evlist__for_each_entry(evlist, counter) 10061fc632ceSJiri Olsa counter->core.attr.write_backward = false; 1007204721d7SKan Liang opts->overwrite = false; 1008853745f5SKan Liang pr_debug2("fall back to non-overwrite mode\n"); 1009204721d7SKan Liang return 1; 1010204721d7SKan Liang } 1011204721d7SKan Liang 101211859e82SArnaldo Carvalho de Melo static int perf_top__start_counters(struct perf_top *top) 101372cb7013SArnaldo Carvalho de Melo { 1014d6195a6aSArnaldo Carvalho de Melo char msg[BUFSIZ]; 101532dcd021SJiri Olsa struct evsel *counter; 101663503dbaSJiri Olsa struct evlist *evlist = top->evlist; 1017b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 1018727ab04eSArnaldo Carvalho de Melo 101963878a53SKan Liang if (perf_top__overwrite_check(top)) { 102063878a53SKan Liang ui__error("perf top only support consistent per-event " 102163878a53SKan Liang "overwrite setting for all events\n"); 102263878a53SKan Liang goto out_err; 102363878a53SKan Liang } 102463878a53SKan Liang 102578e1bc25SArnaldo Carvalho de Melo evlist__config(evlist, opts, &callchain_param); 102672cb7013SArnaldo Carvalho de Melo 1027e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(evlist, counter) { 102872cb7013SArnaldo Carvalho de Melo try_again: 10295fa695e7SKan Liang if (evsel__open(counter, counter->core.cpus, 10305fa695e7SKan Liang counter->core.threads) < 0) { 1031204721d7SKan Liang 1032204721d7SKan Liang /* 1033204721d7SKan Liang * Specially handle overwrite fall back. 1034204721d7SKan Liang * Because perf top is the only tool which has 1035204721d7SKan Liang * overwrite mode by default, support 1036204721d7SKan Liang * both overwrite and non-overwrite mode, and 1037204721d7SKan Liang * require consistent mode for all events. 1038204721d7SKan Liang * 1039204721d7SKan Liang * May move it to generic code with more tools 1040204721d7SKan Liang * have similar attribute. 1041204721d7SKan Liang */ 1042204721d7SKan Liang if (perf_missing_features.write_backward && 1043204721d7SKan Liang perf_top_overwrite_fallback(top, counter)) 1044204721d7SKan Liang goto try_again; 1045204721d7SKan Liang 1046eb2eac0cSIan Rogers if (evsel__fallback(counter, &opts->target, errno, msg, sizeof(msg))) { 1047bb963e16SNamhyung Kim if (verbose > 0) 1048c0a54341SArnaldo Carvalho de Melo ui__warning("%s\n", msg); 104972cb7013SArnaldo Carvalho de Melo goto try_again; 105072cb7013SArnaldo Carvalho de Melo } 1051c286c419SArnaldo Carvalho de Melo 10522bb72dbbSArnaldo Carvalho de Melo evsel__open_strerror(counter, &opts->target, errno, msg, sizeof(msg)); 105356e52e85SArnaldo Carvalho de Melo ui__error("%s\n", msg); 1054c286c419SArnaldo Carvalho de Melo goto out_err; 105572cb7013SArnaldo Carvalho de Melo } 105672cb7013SArnaldo Carvalho de Melo } 105770db7533SArnaldo Carvalho de Melo 1058*af752016SIan Rogers if (evlist__apply_filters(evlist, &counter)) { 1059*af752016SIan Rogers pr_err("failed to set filter \"%s\" on event %s with %d (%s)\n", 1060*af752016SIan Rogers counter->filter ?: "BPF", evsel__name(counter), errno, 1061*af752016SIan Rogers str_error_r(errno, msg, sizeof(msg))); 1062*af752016SIan Rogers goto out_err; 1063*af752016SIan Rogers } 1064*af752016SIan Rogers 10659521b5f2SJiri Olsa if (evlist__mmap(evlist, opts->mmap_pages) < 0) { 10663780f488SNamhyung Kim ui__error("Failed to mmap with %d (%s)\n", 1067c8b5f2c9SArnaldo Carvalho de Melo errno, str_error_r(errno, msg, sizeof(msg))); 1068c286c419SArnaldo Carvalho de Melo goto out_err; 1069c286c419SArnaldo Carvalho de Melo } 1070c286c419SArnaldo Carvalho de Melo 107111859e82SArnaldo Carvalho de Melo return 0; 1072c286c419SArnaldo Carvalho de Melo 1073c286c419SArnaldo Carvalho de Melo out_err: 107411859e82SArnaldo Carvalho de Melo return -1; 107572cb7013SArnaldo Carvalho de Melo } 107672cb7013SArnaldo Carvalho de Melo 1077e3815264SArnaldo Carvalho de Melo static int callchain_param__setup_sample_type(struct callchain_param *callchain) 107819d4ac3cSArnaldo Carvalho de Melo { 1079f2e14cd2SArnaldo Carvalho de Melo if (callchain->mode != CHAIN_NONE) { 1080e3815264SArnaldo Carvalho de Melo if (callchain_register_param(callchain) < 0) { 10813780f488SNamhyung Kim ui__error("Can't register callchain params.\n"); 108219d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 108319d4ac3cSArnaldo Carvalho de Melo } 108419d4ac3cSArnaldo Carvalho de Melo } 108519d4ac3cSArnaldo Carvalho de Melo 108619d4ac3cSArnaldo Carvalho de Melo return 0; 108719d4ac3cSArnaldo Carvalho de Melo } 108819d4ac3cSArnaldo Carvalho de Melo 108916c66bc1SJiri Olsa static struct ordered_events *rotate_queues(struct perf_top *top) 109016c66bc1SJiri Olsa { 109116c66bc1SJiri Olsa struct ordered_events *in = top->qe.in; 109216c66bc1SJiri Olsa 109316c66bc1SJiri Olsa if (top->qe.in == &top->qe.data[1]) 109416c66bc1SJiri Olsa top->qe.in = &top->qe.data[0]; 109516c66bc1SJiri Olsa else 109616c66bc1SJiri Olsa top->qe.in = &top->qe.data[1]; 109716c66bc1SJiri Olsa 109816c66bc1SJiri Olsa return in; 109916c66bc1SJiri Olsa } 110016c66bc1SJiri Olsa 110116c66bc1SJiri Olsa static void *process_thread(void *arg) 110216c66bc1SJiri Olsa { 110316c66bc1SJiri Olsa struct perf_top *top = arg; 110416c66bc1SJiri Olsa 110516c66bc1SJiri Olsa while (!done) { 110616c66bc1SJiri Olsa struct ordered_events *out, *in = top->qe.in; 110716c66bc1SJiri Olsa 110816c66bc1SJiri Olsa if (!in->nr_events) { 110916c66bc1SJiri Olsa usleep(100); 111016c66bc1SJiri Olsa continue; 111116c66bc1SJiri Olsa } 111216c66bc1SJiri Olsa 111316c66bc1SJiri Olsa out = rotate_queues(top); 111494ad6e7eSJiri Olsa 1115d8e40b58SIan Rogers mutex_lock(&top->qe.mutex); 111694ad6e7eSJiri Olsa top->qe.rotate = true; 1117d8e40b58SIan Rogers cond_wait(&top->qe.cond, &top->qe.mutex); 1118d8e40b58SIan Rogers mutex_unlock(&top->qe.mutex); 111916c66bc1SJiri Olsa 112016c66bc1SJiri Olsa if (ordered_events__flush(out, OE_FLUSH__TOP)) 112116c66bc1SJiri Olsa pr_err("failed to process events\n"); 112216c66bc1SJiri Olsa } 112316c66bc1SJiri Olsa 112416c66bc1SJiri Olsa return NULL; 112516c66bc1SJiri Olsa } 112616c66bc1SJiri Olsa 1127d63b9f6fSJiri Olsa /* 1128d63b9f6fSJiri Olsa * Allow only 'top->delay_secs' seconds behind samples. 1129d63b9f6fSJiri Olsa */ 1130d63b9f6fSJiri Olsa static int should_drop(struct ordered_event *qevent, struct perf_top *top) 1131d63b9f6fSJiri Olsa { 1132d63b9f6fSJiri Olsa union perf_event *event = qevent->event; 1133d63b9f6fSJiri Olsa u64 delay_timestamp; 1134d63b9f6fSJiri Olsa 1135d63b9f6fSJiri Olsa if (event->header.type != PERF_RECORD_SAMPLE) 1136d63b9f6fSJiri Olsa return false; 1137d63b9f6fSJiri Olsa 1138d63b9f6fSJiri Olsa delay_timestamp = qevent->timestamp + top->delay_secs * NSEC_PER_SEC; 1139d63b9f6fSJiri Olsa return delay_timestamp < last_timestamp; 1140d63b9f6fSJiri Olsa } 1141d63b9f6fSJiri Olsa 114216c66bc1SJiri Olsa static int deliver_event(struct ordered_events *qe, 114316c66bc1SJiri Olsa struct ordered_event *qevent) 114416c66bc1SJiri Olsa { 114516c66bc1SJiri Olsa struct perf_top *top = qe->data; 114663503dbaSJiri Olsa struct evlist *evlist = top->evlist; 114716c66bc1SJiri Olsa struct perf_session *session = top->session; 114816c66bc1SJiri Olsa union perf_event *event = qevent->event; 114916c66bc1SJiri Olsa struct perf_sample sample; 115032dcd021SJiri Olsa struct evsel *evsel; 115116c66bc1SJiri Olsa struct machine *machine; 115216c66bc1SJiri Olsa int ret = -1; 115316c66bc1SJiri Olsa 115497f7e0b3SJiri Olsa if (should_drop(qevent, top)) { 115597f7e0b3SJiri Olsa top->drop++; 115697f7e0b3SJiri Olsa top->drop_total++; 1157d63b9f6fSJiri Olsa return 0; 115897f7e0b3SJiri Olsa } 1159d63b9f6fSJiri Olsa 11602a6599cdSArnaldo Carvalho de Melo ret = evlist__parse_sample(evlist, event, &sample); 116116c66bc1SJiri Olsa if (ret) { 116216c66bc1SJiri Olsa pr_err("Can't parse sample, err = %d\n", ret); 116316c66bc1SJiri Olsa goto next_event; 116416c66bc1SJiri Olsa } 116516c66bc1SJiri Olsa 11663ccf8a7bSArnaldo Carvalho de Melo evsel = evlist__id2evsel(session->evlist, sample.id); 116716c66bc1SJiri Olsa assert(evsel != NULL); 116816c66bc1SJiri Olsa 11692f53ae34SArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) { 11702f53ae34SArnaldo Carvalho de Melo if (evswitch__discard(&top->evswitch, evsel)) 11712f53ae34SArnaldo Carvalho de Melo return 0; 117216c66bc1SJiri Olsa ++top->samples; 11732f53ae34SArnaldo Carvalho de Melo } 117416c66bc1SJiri Olsa 117516c66bc1SJiri Olsa switch (sample.cpumode) { 117616c66bc1SJiri Olsa case PERF_RECORD_MISC_USER: 117716c66bc1SJiri Olsa ++top->us_samples; 117816c66bc1SJiri Olsa if (top->hide_user_symbols) 117916c66bc1SJiri Olsa goto next_event; 118016c66bc1SJiri Olsa machine = &session->machines.host; 118116c66bc1SJiri Olsa break; 118216c66bc1SJiri Olsa case PERF_RECORD_MISC_KERNEL: 118316c66bc1SJiri Olsa ++top->kernel_samples; 118416c66bc1SJiri Olsa if (top->hide_kernel_symbols) 118516c66bc1SJiri Olsa goto next_event; 118616c66bc1SJiri Olsa machine = &session->machines.host; 118716c66bc1SJiri Olsa break; 118816c66bc1SJiri Olsa case PERF_RECORD_MISC_GUEST_KERNEL: 118916c66bc1SJiri Olsa ++top->guest_kernel_samples; 119016c66bc1SJiri Olsa machine = perf_session__find_machine(session, 119116c66bc1SJiri Olsa sample.pid); 119216c66bc1SJiri Olsa break; 119316c66bc1SJiri Olsa case PERF_RECORD_MISC_GUEST_USER: 119416c66bc1SJiri Olsa ++top->guest_us_samples; 119516c66bc1SJiri Olsa /* 119616c66bc1SJiri Olsa * TODO: we don't process guest user from host side 119716c66bc1SJiri Olsa * except simple counting. 119816c66bc1SJiri Olsa */ 119916c66bc1SJiri Olsa goto next_event; 120016c66bc1SJiri Olsa default: 120116c66bc1SJiri Olsa if (event->header.type == PERF_RECORD_SAMPLE) 120216c66bc1SJiri Olsa goto next_event; 120316c66bc1SJiri Olsa machine = &session->machines.host; 120416c66bc1SJiri Olsa break; 120516c66bc1SJiri Olsa } 120616c66bc1SJiri Olsa 120716c66bc1SJiri Olsa if (event->header.type == PERF_RECORD_SAMPLE) { 120816c66bc1SJiri Olsa perf_event__process_sample(&top->tool, event, evsel, 120916c66bc1SJiri Olsa &sample, machine); 121016c66bc1SJiri Olsa } else if (event->header.type == PERF_RECORD_LOST) { 121116c66bc1SJiri Olsa perf_top__process_lost(top, event, evsel); 121216c66bc1SJiri Olsa } else if (event->header.type == PERF_RECORD_LOST_SAMPLES) { 121316c66bc1SJiri Olsa perf_top__process_lost_samples(top, event, evsel); 121416c66bc1SJiri Olsa } else if (event->header.type < PERF_RECORD_MAX) { 1215bf8f8587SNamhyung Kim events_stats__inc(&session->evlist->stats, event->header.type); 121616c66bc1SJiri Olsa machine__process_event(machine, event, &sample); 121716c66bc1SJiri Olsa } else 121816c66bc1SJiri Olsa ++session->evlist->stats.nr_unknown_events; 121916c66bc1SJiri Olsa 122016c66bc1SJiri Olsa ret = 0; 122116c66bc1SJiri Olsa next_event: 122216c66bc1SJiri Olsa return ret; 122316c66bc1SJiri Olsa } 122416c66bc1SJiri Olsa 122516c66bc1SJiri Olsa static void init_process_thread(struct perf_top *top) 122616c66bc1SJiri Olsa { 122716c66bc1SJiri Olsa ordered_events__init(&top->qe.data[0], deliver_event, top); 122816c66bc1SJiri Olsa ordered_events__init(&top->qe.data[1], deliver_event, top); 122916c66bc1SJiri Olsa ordered_events__set_copy_on_queue(&top->qe.data[0], true); 123016c66bc1SJiri Olsa ordered_events__set_copy_on_queue(&top->qe.data[1], true); 123116c66bc1SJiri Olsa top->qe.in = &top->qe.data[0]; 1232d8e40b58SIan Rogers mutex_init(&top->qe.mutex); 1233d8e40b58SIan Rogers cond_init(&top->qe.cond); 123416c66bc1SJiri Olsa } 123516c66bc1SJiri Olsa 1236cddeeedaSIan Rogers static void exit_process_thread(struct perf_top *top) 1237cddeeedaSIan Rogers { 1238cddeeedaSIan Rogers ordered_events__free(&top->qe.data[0]); 1239cddeeedaSIan Rogers ordered_events__free(&top->qe.data[1]); 1240cddeeedaSIan Rogers mutex_destroy(&top->qe.mutex); 1241cddeeedaSIan Rogers cond_destroy(&top->qe.cond); 1242cddeeedaSIan Rogers } 1243cddeeedaSIan Rogers 12441758af10SArnaldo Carvalho de Melo static int __cmd_top(struct perf_top *top) 1245716c69feSIngo Molnar { 1246b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 124716c66bc1SJiri Olsa pthread_t thread, thread_process; 124819d4ac3cSArnaldo Carvalho de Melo int ret; 1249f5fc1412SJiri Olsa 1250c9a21a87SNamhyung Kim if (!annotate_opts.objdump_path) { 1251f178fd2dSArnaldo Carvalho de Melo ret = perf_env__lookup_objdump(&top->session->header.env, 1252c9a21a87SNamhyung Kim &annotate_opts.objdump_path); 12530d3942dbSSukadev Bhattiprolu if (ret) 12540dba9e4bSChangbin Du return ret; 12550d3942dbSSukadev Bhattiprolu } 12560d3942dbSSukadev Bhattiprolu 1257e3815264SArnaldo Carvalho de Melo ret = callchain_param__setup_sample_type(&callchain_param); 125819d4ac3cSArnaldo Carvalho de Melo if (ret) 12590dba9e4bSChangbin Du return ret; 126019d4ac3cSArnaldo Carvalho de Melo 12619d8b172fSMasami Hiramatsu if (perf_session__register_idle_thread(top->session) < 0) 12620dba9e4bSChangbin Du return ret; 1263c53d138dSNamhyung Kim 12640c6b4994SKan Liang if (top->nr_threads_synthesize > 1) 1265340b47f5SKan Liang perf_set_multithreaded(); 1266340b47f5SKan Liang 126716c66bc1SJiri Olsa init_process_thread(top); 126816c66bc1SJiri Olsa 1269a0c0a4acSNamhyung Kim if (opts->record_namespaces) 1270a0c0a4acSNamhyung Kim top->tool.namespace_events = true; 1271f382842fSNamhyung Kim if (opts->record_cgroup) { 1272f382842fSNamhyung Kim #ifdef HAVE_FILE_HANDLE 1273f382842fSNamhyung Kim top->tool.cgroup_events = true; 1274f382842fSNamhyung Kim #else 1275f382842fSNamhyung Kim pr_err("cgroup tracking is not supported.\n"); 1276f382842fSNamhyung Kim return -1; 1277f382842fSNamhyung Kim #endif 1278f382842fSNamhyung Kim } 1279a0c0a4acSNamhyung Kim 1280e5416950SSong Liu ret = perf_event__synthesize_bpf_events(top->session, perf_event__process, 1281a40b95bcSArnaldo Carvalho de Melo &top->session->machines.host, 1282a40b95bcSArnaldo Carvalho de Melo &top->record_opts); 1283a40b95bcSArnaldo Carvalho de Melo if (ret < 0) 12842d45ef70SArnaldo Carvalho de Melo pr_debug("Couldn't synthesize BPF events: Pre-existing BPF programs won't have symbols resolved.\n"); 1285a40b95bcSArnaldo Carvalho de Melo 1286f382842fSNamhyung Kim ret = perf_event__synthesize_cgroups(&top->tool, perf_event__process, 1287f382842fSNamhyung Kim &top->session->machines.host); 1288f382842fSNamhyung Kim if (ret < 0) 1289f382842fSNamhyung Kim pr_debug("Couldn't synthesize cgroup events.\n"); 1290f382842fSNamhyung Kim 1291a33fbd56SArnaldo Carvalho de Melo machine__synthesize_threads(&top->session->machines.host, &opts->target, 129284111b9cSNamhyung Kim top->evlist->core.threads, true, false, 12930c6b4994SKan Liang top->nr_threads_synthesize); 1294340b47f5SKan Liang 1295eab50517SHangliang Lai perf_set_multithreaded(); 12962e7ea3abSKan Liang 129735a634f7SJiri Olsa if (perf_hpp_list.socket) { 12982e7ea3abSKan Liang ret = perf_env__read_cpu_topology_map(&perf_env); 12990dba9e4bSChangbin Du if (ret < 0) { 13000dba9e4bSChangbin Du char errbuf[BUFSIZ]; 13010dba9e4bSChangbin Du const char *err = str_error_r(-ret, errbuf, sizeof(errbuf)); 13020dba9e4bSChangbin Du 13030dba9e4bSChangbin Du ui__error("Could not read the CPU topology map: %s\n", err); 13040dba9e4bSChangbin Du return ret; 13050dba9e4bSChangbin Du } 13062e7ea3abSKan Liang } 13072e7ea3abSKan Liang 1308a61f89bfSKan Liang evlist__uniquify_name(top->evlist); 130911859e82SArnaldo Carvalho de Melo ret = perf_top__start_counters(top); 131011859e82SArnaldo Carvalho de Melo if (ret) 13110dba9e4bSChangbin Du return ret; 131211859e82SArnaldo Carvalho de Melo 13131758af10SArnaldo Carvalho de Melo top->session->evlist = top->evlist; 13147b56cce2SArnaldo Carvalho de Melo perf_session__set_id_hdr_size(top->session); 131586470930SIngo Molnar 13162376c67aSArnaldo Carvalho de Melo /* 13172376c67aSArnaldo Carvalho de Melo * When perf is starting the traced process, all the events (apart from 13182376c67aSArnaldo Carvalho de Melo * group members) have enable_on_exec=1 set, so don't spoil it by 13192376c67aSArnaldo Carvalho de Melo * prematurely enabling them. 13202376c67aSArnaldo Carvalho de Melo * 13212376c67aSArnaldo Carvalho de Melo * XXX 'top' still doesn't start workloads like record, trace, but should, 13222376c67aSArnaldo Carvalho de Melo * so leave the check here. 13232376c67aSArnaldo Carvalho de Melo */ 1324602ad878SArnaldo Carvalho de Melo if (!target__none(&opts->target)) 13251c87f165SJiri Olsa evlist__enable(top->evlist); 13262376c67aSArnaldo Carvalho de Melo 132711859e82SArnaldo Carvalho de Melo ret = -1; 132816c66bc1SJiri Olsa if (pthread_create(&thread_process, NULL, process_thread, top)) { 132916c66bc1SJiri Olsa ui__error("Could not create process thread.\n"); 13300dba9e4bSChangbin Du return ret; 133116c66bc1SJiri Olsa } 133216c66bc1SJiri Olsa 1333c0443df1SArnaldo Carvalho de Melo if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : 13341758af10SArnaldo Carvalho de Melo display_thread), top)) { 13353780f488SNamhyung Kim ui__error("Could not create display thread.\n"); 133616c66bc1SJiri Olsa goto out_join_thread; 133786470930SIngo Molnar } 133886470930SIngo Molnar 13391758af10SArnaldo Carvalho de Melo if (top->realtime_prio) { 134086470930SIngo Molnar struct sched_param param; 134186470930SIngo Molnar 13421758af10SArnaldo Carvalho de Melo param.sched_priority = top->realtime_prio; 134386470930SIngo Molnar if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { 13443780f488SNamhyung Kim ui__error("Could not set realtime priority.\n"); 1345ae256fa2SJiri Olsa goto out_join; 134686470930SIngo Molnar } 134786470930SIngo Molnar } 134886470930SIngo Molnar 1349ff27a06aSDavid Miller /* Wait for a minimal set of events before starting the snapshot */ 135080ab2987SJiri Olsa evlist__poll(top->evlist, 100); 1351ff27a06aSDavid Miller 1352ff27a06aSDavid Miller perf_top__mmap_read(top); 1353ff27a06aSDavid Miller 135411859e82SArnaldo Carvalho de Melo while (!done) { 13551758af10SArnaldo Carvalho de Melo u64 hits = top->samples; 135686470930SIngo Molnar 13571758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 135886470930SIngo Molnar 1359ebebbf08SKan Liang if (opts->overwrite || (hits == top->samples)) 136080ab2987SJiri Olsa ret = evlist__poll(top->evlist, 100); 1361b135e5eeSJiri Olsa 1362b135e5eeSJiri Olsa if (resize) { 1363b135e5eeSJiri Olsa perf_top__resize(top); 1364b135e5eeSJiri Olsa resize = 0; 1365b135e5eeSJiri Olsa } 136686470930SIngo Molnar } 136786470930SIngo Molnar 136811859e82SArnaldo Carvalho de Melo ret = 0; 1369ae256fa2SJiri Olsa out_join: 1370ae256fa2SJiri Olsa pthread_join(thread, NULL); 137116c66bc1SJiri Olsa out_join_thread: 1372d8e40b58SIan Rogers cond_signal(&top->qe.cond); 137316c66bc1SJiri Olsa pthread_join(thread_process, NULL); 1374eab50517SHangliang Lai perf_set_singlethreaded(); 1375cddeeedaSIan Rogers exit_process_thread(top); 137611859e82SArnaldo Carvalho de Melo return ret; 137719d4ac3cSArnaldo Carvalho de Melo } 137819d4ac3cSArnaldo Carvalho de Melo 137919d4ac3cSArnaldo Carvalho de Melo static int 1380ae779a63SJiri Olsa callchain_opt(const struct option *opt, const char *arg, int unset) 1381ae779a63SJiri Olsa { 1382ae779a63SJiri Olsa symbol_conf.use_callchain = true; 1383ae779a63SJiri Olsa return record_callchain_opt(opt, arg, unset); 1384ae779a63SJiri Olsa } 1385ae779a63SJiri Olsa 1386ae779a63SJiri Olsa static int 13871758af10SArnaldo Carvalho de Melo parse_callchain_opt(const struct option *opt, const char *arg, int unset) 138819d4ac3cSArnaldo Carvalho de Melo { 13892ddd5c04SArnaldo Carvalho de Melo struct callchain_param *callchain = opt->value; 1390a2c10d39SNamhyung Kim 13912ddd5c04SArnaldo Carvalho de Melo callchain->enabled = !unset; 13922ddd5c04SArnaldo Carvalho de Melo callchain->record_mode = CALLCHAIN_FP; 1393a2c10d39SNamhyung Kim 1394a2c10d39SNamhyung Kim /* 1395a2c10d39SNamhyung Kim * --no-call-graph 1396a2c10d39SNamhyung Kim */ 1397a2c10d39SNamhyung Kim if (unset) { 1398a2c10d39SNamhyung Kim symbol_conf.use_callchain = false; 13992ddd5c04SArnaldo Carvalho de Melo callchain->record_mode = CALLCHAIN_NONE; 1400a2c10d39SNamhyung Kim return 0; 1401a2c10d39SNamhyung Kim } 1402a2c10d39SNamhyung Kim 1403a2c10d39SNamhyung Kim return parse_callchain_top_opt(arg); 140486470930SIngo Molnar } 140586470930SIngo Molnar 1406b8cbb349SWang Nan static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused) 1407eb853e80SJiri Olsa { 1408a3a4a3b3SYisheng Xie if (!strcmp(var, "top.call-graph")) { 1409a3a4a3b3SYisheng Xie var = "call-graph.record-mode"; 1410a3a4a3b3SYisheng Xie return perf_default_config(var, value, cb); 1411a3a4a3b3SYisheng Xie } 1412104ac991SNamhyung Kim if (!strcmp(var, "top.children")) { 1413104ac991SNamhyung Kim symbol_conf.cumulate_callchain = perf_config_bool(var, value); 1414104ac991SNamhyung Kim return 0; 1415104ac991SNamhyung Kim } 1416eb853e80SJiri Olsa 1417b8cbb349SWang Nan return 0; 1418eb853e80SJiri Olsa } 1419eb853e80SJiri Olsa 1420fa5df943SNamhyung Kim static int 1421fa5df943SNamhyung Kim parse_percent_limit(const struct option *opt, const char *arg, 1422fa5df943SNamhyung Kim int unset __maybe_unused) 1423fa5df943SNamhyung Kim { 1424fa5df943SNamhyung Kim struct perf_top *top = opt->value; 1425fa5df943SNamhyung Kim 1426fa5df943SNamhyung Kim top->min_percent = strtof(arg, NULL); 1427fa5df943SNamhyung Kim return 0; 1428fa5df943SNamhyung Kim } 1429fa5df943SNamhyung Kim 143076a26549SNamhyung Kim const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP 143176a26549SNamhyung Kim "\n\t\t\t\tDefault: fp,graph,0.5,caller,function"; 1432a2c10d39SNamhyung Kim 1433b0ad8ea6SArnaldo Carvalho de Melo int cmd_top(int argc, const char **argv) 14341758af10SArnaldo Carvalho de Melo { 143516ad2ffbSNamhyung Kim char errbuf[BUFSIZ]; 14361758af10SArnaldo Carvalho de Melo struct perf_top top = { 14371758af10SArnaldo Carvalho de Melo .count_filter = 5, 14381758af10SArnaldo Carvalho de Melo .delay_secs = 2, 14392376c67aSArnaldo Carvalho de Melo .record_opts = { 14402376c67aSArnaldo Carvalho de Melo .mmap_pages = UINT_MAX, 14412376c67aSArnaldo Carvalho de Melo .user_freq = UINT_MAX, 14422376c67aSArnaldo Carvalho de Melo .user_interval = ULLONG_MAX, 1443447a6013SArnaldo Carvalho de Melo .freq = 4000, /* 4 KHz */ 1444d1cb9fceSNamhyung Kim .target = { 1445d1cb9fceSNamhyung Kim .uses_mmap = true, 1446d1cb9fceSNamhyung Kim }, 1447218d6111SArnaldo Carvalho de Melo /* 1448218d6111SArnaldo Carvalho de Melo * FIXME: This will lose PERF_RECORD_MMAP and other metadata 1449218d6111SArnaldo Carvalho de Melo * when we pause, fix that and reenable. Probably using a 1450218d6111SArnaldo Carvalho de Melo * separate evlist with a dummy event, i.e. a non-overwrite 1451218d6111SArnaldo Carvalho de Melo * ring buffer just for metadata events, while PERF_RECORD_SAMPLE 1452218d6111SArnaldo Carvalho de Melo * stays in overwrite mode. -acme 1453218d6111SArnaldo Carvalho de Melo * */ 1454218d6111SArnaldo Carvalho de Melo .overwrite = 0, 145516c66bc1SJiri Olsa .sample_time = true, 14561e6db2eeSJiri Olsa .sample_time_set = true, 14572376c67aSArnaldo Carvalho de Melo }, 1458029c75e5SArnaldo Carvalho de Melo .max_stack = sysctl__max_stack(), 14590c6b4994SKan Liang .nr_threads_synthesize = UINT_MAX, 14601758af10SArnaldo Carvalho de Melo }; 1461411ad22eSIan Rogers struct parse_events_option_args parse_events_option_args = { 1462411ad22eSIan Rogers .evlistp = &top.evlist, 1463411ad22eSIan Rogers }; 14645ef50613SAdrian Hunter bool branch_call_mode = false; 1465b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top.record_opts; 1466602ad878SArnaldo Carvalho de Melo struct target *target = &opts->target; 146757594454SIan Rogers const char *disassembler_style = NULL, *objdump_path = NULL, *addr2line_path = NULL; 14681758af10SArnaldo Carvalho de Melo const struct option options[] = { 1469411ad22eSIan Rogers OPT_CALLBACK('e', "event", &parse_events_option_args, "event", 147086470930SIngo Molnar "event selector. use 'perf list' to list available events", 1471f120f9d5SJiri Olsa parse_events_option), 1472*af752016SIan Rogers OPT_CALLBACK(0, "filter", &top.evlist, "filter", 1473*af752016SIan Rogers "event filter", parse_filter), 14742376c67aSArnaldo Carvalho de Melo OPT_U64('c', "count", &opts->user_interval, "event period to sample"), 14752376c67aSArnaldo Carvalho de Melo OPT_STRING('p', "pid", &target->pid, "pid", 1476d6d901c2SZhang, Yanmin "profile events on existing process id"), 14772376c67aSArnaldo Carvalho de Melo OPT_STRING('t', "tid", &target->tid, "tid", 1478d6d901c2SZhang, Yanmin "profile events on existing thread id"), 14792376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('a', "all-cpus", &target->system_wide, 148086470930SIngo Molnar "system-wide collection from all CPUs"), 14812376c67aSArnaldo Carvalho de Melo OPT_STRING('C', "cpu", &target->cpu_list, "cpu", 1482c45c6ea2SStephane Eranian "list of cpus to monitor"), 1483b32d133aSArnaldo Carvalho de Melo OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1484b32d133aSArnaldo Carvalho de Melo "file", "vmlinux pathname"), 1485fc2be696SWilly Tarreau OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, 1486fc2be696SWilly Tarreau "don't load vmlinux even if found"), 14871b3aae90SArnaldo Carvalho de Melo OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, 14881b3aae90SArnaldo Carvalho de Melo "file", "kallsyms pathname"), 14898c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, 14908ffcda17SArnaldo Carvalho de Melo "hide kernel symbols"), 1491994a1f78SJiri Olsa OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", 149225f84702SArnaldo Carvalho de Melo "number of mmap data pages", evlist__parse_mmap_pages), 14931758af10SArnaldo Carvalho de Melo OPT_INTEGER('r', "realtime", &top.realtime_prio, 149486470930SIngo Molnar "collect data with this RT SCHED_FIFO priority"), 14958c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('d', "delay", &top.delay_secs, 149686470930SIngo Molnar "number of seconds to delay between refreshes"), 14971758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, 149886470930SIngo Molnar "dump the symbol table used for profiling"), 14998c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('f', "count-filter", &top.count_filter, 150086470930SIngo Molnar "only display functions with more events than this"), 15012376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, 15022376c67aSArnaldo Carvalho de Melo "child tasks do not inherit counters"), 15031758af10SArnaldo Carvalho de Melo OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", 15046cff0e8dSKirill Smelkov "symbol to annotate"), 15052376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), 15067831bf23SArnaldo Carvalho de Melo OPT_CALLBACK('F', "freq", &top.record_opts, "freq or 'max'", 15077831bf23SArnaldo Carvalho de Melo "profile at this frequency", 15087831bf23SArnaldo Carvalho de Melo record__parse_freq), 15098c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('E', "entries", &top.print_entries, 151086470930SIngo Molnar "display this many functions"), 15118c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, 15128ffcda17SArnaldo Carvalho de Melo "hide user symbols"), 15133402ae0aSIan Rogers #ifdef HAVE_SLANG_SUPPORT 15141758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), 15153402ae0aSIan Rogers #endif 15161758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), 1517c0555642SIan Munsie OPT_INCR('v', "verbose", &verbose, 15183da297a6SIngo Molnar "be more verbose (show counter open errors, etc)"), 1519ab81f3fdSArnaldo Carvalho de Melo OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 1520a2ce067eSNamhyung Kim "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." 1521a2ce067eSNamhyung Kim " Please refer the man page for the complete list."), 15226fe8c26dSNamhyung Kim OPT_STRING(0, "fields", &field_order, "key[,keys...]", 15236fe8c26dSNamhyung Kim "output field(s): overhead, period, sample plus all of sort keys"), 1524ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 1525ab81f3fdSArnaldo Carvalho de Melo "Show a column with the number of samples"), 15262ddd5c04SArnaldo Carvalho de Melo OPT_CALLBACK_NOOPT('g', NULL, &callchain_param, 1527a2c10d39SNamhyung Kim NULL, "enables call-graph recording and display", 1528ae779a63SJiri Olsa &callchain_opt), 15292ddd5c04SArnaldo Carvalho de Melo OPT_CALLBACK(0, "call-graph", &callchain_param, 153076a26549SNamhyung Kim "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]", 1531a2c10d39SNamhyung Kim top_callchain_help, &parse_callchain_opt), 15321432ec34SNamhyung Kim OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, 15331432ec34SNamhyung Kim "Accumulate callchains of children and show total overhead as well"), 15345dbb6e81SWaiman Long OPT_INTEGER(0, "max-stack", &top.max_stack, 15355dbb6e81SWaiman Long "Set the maximum stack depth when parsing the callchain. " 15364cb93446SArnaldo Carvalho de Melo "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), 1537b21484f1SGreg Price OPT_CALLBACK(0, "ignore-callees", NULL, "regex", 1538b21484f1SGreg Price "ignore callees of these functions in call graphs", 1539b21484f1SGreg Price report_parse_ignore_callees_opt), 1540ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 1541ab81f3fdSArnaldo Carvalho de Melo "Show a column with the sum of periods"), 1542ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 1543ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these dsos"), 1544ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1545ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these comms"), 1546ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1547ab81f3fdSArnaldo Carvalho de Melo "only consider these symbols"), 1548c9a21a87SNamhyung Kim OPT_BOOLEAN(0, "source", &annotate_opts.annotate_src, 154964c6f0c7SArnaldo Carvalho de Melo "Interleave source code with assembly code (default)"), 1550c9a21a87SNamhyung Kim OPT_BOOLEAN(0, "asm-raw", &annotate_opts.show_asm_raw, 155164c6f0c7SArnaldo Carvalho de Melo "Display raw encoding of assembly instructions (default)"), 1552763122adSAvi Kivity OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, 1553763122adSAvi Kivity "Enable kernel symbol demangling"), 1554ee7a112fSSong Liu OPT_BOOLEAN(0, "no-bpf-event", &top.record_opts.no_bpf_event, "do not record bpf events"), 155556d9117cSIan Rogers OPT_STRING(0, "objdump", &objdump_path, "path", 15560d3942dbSSukadev Bhattiprolu "objdump binary to use for disassembly and annotations"), 155757594454SIan Rogers OPT_STRING(0, "addr2line", &addr2line_path, "path", 155857594454SIan Rogers "addr2line binary to use for line numbers"), 155956d9117cSIan Rogers OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", 156064c6f0c7SArnaldo Carvalho de Melo "Specify disassembler style (e.g. -M intel for intel syntax)"), 1561c9a21a87SNamhyung Kim OPT_STRING(0, "prefix", &annotate_opts.prefix, "prefix", 15623b0b16bfSAndi Kleen "Add prefix to source file path names in programs (with --prefix-strip)"), 1563c9a21a87SNamhyung Kim OPT_STRING(0, "prefix-strip", &annotate_opts.prefix_strip, "N", 15643b0b16bfSAndi Kleen "Strip first N entries of source file path name in programs (with --prefix)"), 15652376c67aSArnaldo Carvalho de Melo OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), 1566fa5df943SNamhyung Kim OPT_CALLBACK(0, "percent-limit", &top, "percent", 1567fa5df943SNamhyung Kim "Don't show entries under that percent", parse_percent_limit), 156833db4568SNamhyung Kim OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", 156933db4568SNamhyung Kim "How to display percentage of filtered entries", parse_filter_percentage), 1570cf59002fSNamhyung Kim OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, 1571cf59002fSNamhyung Kim "width[,width...]", 1572cf59002fSNamhyung Kim "don't try to adjust column width, use these fixed values"), 15733fcb10e4SMark Drayton OPT_UINTEGER(0, "proc-map-timeout", &proc_map_timeout, 15749d9cad76SKan Liang "per thread proc mmap processing timeout in ms"), 1575a18b027eSAndi Kleen OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack, 1576a18b027eSAndi Kleen "branch any", "sample any taken branches", 1577a18b027eSAndi Kleen parse_branch_stack), 1578a18b027eSAndi Kleen OPT_CALLBACK('j', "branch-filter", &opts->branch_stack, 1579a18b027eSAndi Kleen "branch filter mask", "branch stack filter modes", 1580a18b027eSAndi Kleen parse_branch_stack), 15815ef50613SAdrian Hunter OPT_BOOLEAN(0, "branch-history", &branch_call_mode, 15825ef50613SAdrian Hunter "add last branch records to call history"), 1583053a3989SNamhyung Kim OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, 1584053a3989SNamhyung Kim "Show raw trace event output (do not use print fmt or plugins)"), 15857727d59dSNamhyung Kim OPT_BOOLEAN('H', "hierarchy", &symbol_conf.report_hierarchy, 1586c92fcfdeSNamhyung Kim "Show entries in a hierarchy"), 15874e303fbeSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "overwrite", &top.record_opts.overwrite, 1588218d6111SArnaldo Carvalho de Melo "Use a backward ring buffer, default: no"), 1589868a8329SKrister Johansen OPT_BOOLEAN(0, "force", &symbol_conf.force, "don't complain, do it"), 15900c6b4994SKan Liang OPT_UINTEGER(0, "num-thread-synthesize", &top.nr_threads_synthesize, 15910c6b4994SKan Liang "number of thread to run event synthesize"), 159251f38242SJoshua Martinez OPT_CALLBACK('G', "cgroup", &top.evlist, "name", 159351f38242SJoshua Martinez "monitor event in cgroup name only", parse_cgroups), 1594a0c0a4acSNamhyung Kim OPT_BOOLEAN(0, "namespaces", &opts->record_namespaces, 1595a0c0a4acSNamhyung Kim "Record namespaces events"), 1596f382842fSNamhyung Kim OPT_BOOLEAN(0, "all-cgroups", &opts->record_cgroup, 1597f382842fSNamhyung Kim "Record cgroup events"), 1598df7deb2cSJin Yao OPT_INTEGER(0, "group-sort-idx", &symbol_conf.group_sort_idx, 1599df7deb2cSJin Yao "Sort the output by the event at the index n in group. " 1600df7deb2cSJin Yao "If n is invalid, sort by the first event. " 1601df7deb2cSJin Yao "WARNING: should be used on grouped events."), 160213e0c844SKan Liang OPT_BOOLEAN(0, "stitch-lbr", &top.stitch_lbr, 160313e0c844SKan Liang "Enable LBR callgraph stitching approach"), 160470943490SStephane Eranian #ifdef HAVE_LIBPFM 160570943490SStephane Eranian OPT_CALLBACK(0, "pfm-events", &top.evlist, "event", 160670943490SStephane Eranian "libpfm4 event selector. use 'perf list' to list available events", 160770943490SStephane Eranian parse_libpfm_events_option), 160870943490SStephane Eranian #endif 16092f53ae34SArnaldo Carvalho de Melo OPTS_EVSWITCH(&top.evswitch), 161086470930SIngo Molnar OPT_END() 161186470930SIngo Molnar }; 1612be772842SArnaldo Carvalho de Melo const char * const top_usage[] = { 1613be772842SArnaldo Carvalho de Melo "perf top [<options>]", 1614be772842SArnaldo Carvalho de Melo NULL 1615be772842SArnaldo Carvalho de Melo }; 1616a635fc51SArnaldo Carvalho de Melo int status = hists__init(); 1617a635fc51SArnaldo Carvalho de Melo 1618a635fc51SArnaldo Carvalho de Melo if (status < 0) 1619a635fc51SArnaldo Carvalho de Melo return status; 162086470930SIngo Molnar 16217f929aeaSNamhyung Kim annotation_options__init(); 1622217b7d41SIan Rogers 1623c9a21a87SNamhyung Kim annotate_opts.min_pcnt = 5; 1624c9a21a87SNamhyung Kim annotate_opts.context = 4; 1625982d410bSArnaldo Carvalho de Melo 16260f98b11cSJiri Olsa top.evlist = evlist__new(); 16278c3e10ebSArnaldo Carvalho de Melo if (top.evlist == NULL) 1628361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1629361c99a6SArnaldo Carvalho de Melo 1630ecc4c561SArnaldo Carvalho de Melo status = perf_config(perf_top_config, &top); 1631ecc4c561SArnaldo Carvalho de Melo if (status) 1632ecc4c561SArnaldo Carvalho de Melo return status; 1633608127f7SArnaldo Carvalho de Melo /* 1634608127f7SArnaldo Carvalho de Melo * Since the per arch annotation init routine may need the cpuid, read 1635608127f7SArnaldo Carvalho de Melo * it here, since we are not getting this from the perf.data header. 1636608127f7SArnaldo Carvalho de Melo */ 1637608127f7SArnaldo Carvalho de Melo status = perf_env__read_cpuid(&perf_env); 1638608127f7SArnaldo Carvalho de Melo if (status) { 163961208e6eSArnaldo Carvalho de Melo /* 164061208e6eSArnaldo Carvalho de Melo * Some arches do not provide a get_cpuid(), so just use pr_debug, otherwise 16414d39c89fSIngo Molnar * warn the user explicitly. 164261208e6eSArnaldo Carvalho de Melo */ 164361208e6eSArnaldo Carvalho de Melo eprintf(status == ENOSYS ? 1 : 0, verbose, 164461208e6eSArnaldo Carvalho de Melo "Couldn't read the cpuid for this machine: %s\n", 1645608127f7SArnaldo Carvalho de Melo str_error_r(errno, errbuf, sizeof(errbuf))); 1646608127f7SArnaldo Carvalho de Melo } 1647608127f7SArnaldo Carvalho de Melo top.evlist->env = &perf_env; 1648eb853e80SJiri Olsa 164986470930SIngo Molnar argc = parse_options(argc, argv, options, top_usage, 0); 165086470930SIngo Molnar if (argc) 165186470930SIngo Molnar usage_with_options(top_usage, options); 165286470930SIngo Molnar 165356d9117cSIan Rogers if (disassembler_style) { 1654c9a21a87SNamhyung Kim annotate_opts.disassembler_style = strdup(disassembler_style); 1655c9a21a87SNamhyung Kim if (!annotate_opts.disassembler_style) 165656d9117cSIan Rogers return -ENOMEM; 165756d9117cSIan Rogers } 165856d9117cSIan Rogers if (objdump_path) { 1659c9a21a87SNamhyung Kim annotate_opts.objdump_path = strdup(objdump_path); 1660c9a21a87SNamhyung Kim if (!annotate_opts.objdump_path) 166156d9117cSIan Rogers return -ENOMEM; 166256d9117cSIan Rogers } 166357594454SIan Rogers if (addr2line_path) { 166457594454SIan Rogers symbol_conf.addr2line_path = strdup(addr2line_path); 166557594454SIan Rogers if (!symbol_conf.addr2line_path) 166657594454SIan Rogers return -ENOMEM; 166757594454SIan Rogers } 166856d9117cSIan Rogers 16697cc72553SJames Clark status = symbol__validate_sym_arguments(); 16707cc72553SJames Clark if (status) 16717cc72553SJames Clark goto out_delete_evlist; 16727cc72553SJames Clark 16737f929aeaSNamhyung Kim if (annotate_check_args() < 0) 16743b0b16bfSAndi Kleen goto out_delete_evlist; 16753b0b16bfSAndi Kleen 16767b100989SIan Rogers if (!top.evlist->core.nr_entries) { 16777b100989SIan Rogers bool can_profile_kernel = perf_event_paranoid_check(1); 16787b100989SIan Rogers int err = parse_event(top.evlist, can_profile_kernel ? "cycles:P" : "cycles:Pu"); 16797b100989SIan Rogers 16807b100989SIan Rogers if (err) 168154f8f403SNamhyung Kim goto out_delete_evlist; 168254f8f403SNamhyung Kim } 168354f8f403SNamhyung Kim 16842f53ae34SArnaldo Carvalho de Melo status = evswitch__init(&top.evswitch, top.evlist, stderr); 16852f53ae34SArnaldo Carvalho de Melo if (status) 16862f53ae34SArnaldo Carvalho de Melo goto out_delete_evlist; 16872f53ae34SArnaldo Carvalho de Melo 1688c92fcfdeSNamhyung Kim if (symbol_conf.report_hierarchy) { 1689c92fcfdeSNamhyung Kim /* disable incompatible options */ 1690c92fcfdeSNamhyung Kim symbol_conf.event_group = false; 1691c92fcfdeSNamhyung Kim symbol_conf.cumulate_callchain = false; 1692c92fcfdeSNamhyung Kim 1693c92fcfdeSNamhyung Kim if (field_order) { 1694c92fcfdeSNamhyung Kim pr_err("Error: --hierarchy and --fields options cannot be used together\n"); 1695c92fcfdeSNamhyung Kim parse_options_usage(top_usage, options, "fields", 0); 1696c92fcfdeSNamhyung Kim parse_options_usage(NULL, options, "hierarchy", 0); 1697c92fcfdeSNamhyung Kim goto out_delete_evlist; 1698c92fcfdeSNamhyung Kim } 1699c92fcfdeSNamhyung Kim } 1700c92fcfdeSNamhyung Kim 170113e0c844SKan Liang if (top.stitch_lbr && !(callchain_param.record_mode == CALLCHAIN_LBR)) { 170213e0c844SKan Liang pr_err("Error: --stitch-lbr must be used with --call-graph lbr\n"); 170313e0c844SKan Liang goto out_delete_evlist; 170413e0c844SKan Liang } 170513e0c844SKan Liang 170651f38242SJoshua Martinez if (nr_cgroups > 0 && opts->record_cgroup) { 170751f38242SJoshua Martinez pr_err("--cgroup and --all-cgroups cannot be used together\n"); 170851f38242SJoshua Martinez goto out_delete_evlist; 170951f38242SJoshua Martinez } 171051f38242SJoshua Martinez 17115ef50613SAdrian Hunter if (branch_call_mode) { 17125ef50613SAdrian Hunter if (!opts->branch_stack) 17135ef50613SAdrian Hunter opts->branch_stack = PERF_SAMPLE_BRANCH_ANY; 17145ef50613SAdrian Hunter symbol_conf.use_callchain = true; 17155ef50613SAdrian Hunter callchain_param.key = CCKEY_ADDRESS; 17165ef50613SAdrian Hunter callchain_param.branch_callstack = true; 17175ef50613SAdrian Hunter callchain_param.enabled = true; 17185ef50613SAdrian Hunter if (callchain_param.record_mode == CALLCHAIN_NONE) 17195ef50613SAdrian Hunter callchain_param.record_mode = CALLCHAIN_FP; 17205ef50613SAdrian Hunter callchain_register_param(&callchain_param); 17215ef50613SAdrian Hunter if (!sort_order) 17225ef50613SAdrian Hunter sort_order = "srcline,symbol,dso"; 17235ef50613SAdrian Hunter } 17245ef50613SAdrian Hunter 1725590ac60dSJin Yao if (opts->branch_stack && callchain_param.enabled) 1726590ac60dSJin Yao symbol_conf.show_branchflag_count = true; 1727590ac60dSJin Yao 1728512ae1bdSNamhyung Kim sort__mode = SORT_MODE__TOP; 17293a5714f8SNamhyung Kim /* display thread wants entries to be collapsed in a different tree */ 173052225036SJiri Olsa perf_hpp_list.need_collapse = 1; 17313a5714f8SNamhyung Kim 17323ee60c3bSArnaldo Carvalho de Melo if (top.use_stdio) 17333ee60c3bSArnaldo Carvalho de Melo use_browser = 0; 17343402ae0aSIan Rogers #ifdef HAVE_SLANG_SUPPORT 17353ee60c3bSArnaldo Carvalho de Melo else if (top.use_tui) 17363ee60c3bSArnaldo Carvalho de Melo use_browser = 1; 17373402ae0aSIan Rogers #endif 17383ee60c3bSArnaldo Carvalho de Melo 17393ee60c3bSArnaldo Carvalho de Melo setup_browser(false); 17403ee60c3bSArnaldo Carvalho de Melo 174140184c46SNamhyung Kim if (setup_sorting(top.evlist) < 0) { 17426fe8c26dSNamhyung Kim if (sort_order) 17436fe8c26dSNamhyung Kim parse_options_usage(top_usage, options, "s", 1); 17446fe8c26dSNamhyung Kim if (field_order) 17456fe8c26dSNamhyung Kim parse_options_usage(sort_order ? NULL : top_usage, 17466fe8c26dSNamhyung Kim options, "fields", 0); 17476fe8c26dSNamhyung Kim goto out_delete_evlist; 17486fe8c26dSNamhyung Kim } 174922af969eSNamhyung Kim 1750602ad878SArnaldo Carvalho de Melo status = target__validate(target); 175116ad2ffbSNamhyung Kim if (status) { 1752602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1753ea432a8bSIngo Molnar ui__warning("%s\n", errbuf); 175416ad2ffbSNamhyung Kim } 17554bd0f2d2SNamhyung Kim 1756602ad878SArnaldo Carvalho de Melo status = target__parse_uid(target); 175716ad2ffbSNamhyung Kim if (status) { 175816ad2ffbSNamhyung Kim int saved_errno = errno; 175916ad2ffbSNamhyung Kim 1760602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1761ea432a8bSIngo Molnar ui__error("%s\n", errbuf); 176216ad2ffbSNamhyung Kim 176316ad2ffbSNamhyung Kim status = -saved_errno; 17640d37aa34SArnaldo Carvalho de Melo goto out_delete_evlist; 176516ad2ffbSNamhyung Kim } 17660d37aa34SArnaldo Carvalho de Melo 1767602ad878SArnaldo Carvalho de Melo if (target__none(target)) 17682376c67aSArnaldo Carvalho de Melo target->system_wide = true; 176910b47d54SArnaldo Carvalho de Melo 17707748bb71SArnaldo Carvalho de Melo if (evlist__create_maps(top.evlist, target) < 0) { 1771f8a5c0b2SArnaldo Carvalho de Melo ui__error("Couldn't create thread/CPU maps: %s\n", 1772c8b5f2c9SArnaldo Carvalho de Melo errno == ENOENT ? "No such process" : str_error_r(errno, errbuf, sizeof(errbuf))); 1773dc64641cSShang XiaoJing status = -errno; 1774f8a5c0b2SArnaldo Carvalho de Melo goto out_delete_evlist; 1775f8a5c0b2SArnaldo Carvalho de Melo } 17767e2ed097SArnaldo Carvalho de Melo 17778c3e10ebSArnaldo Carvalho de Melo if (top.delay_secs < 1) 17788c3e10ebSArnaldo Carvalho de Melo top.delay_secs = 1; 177986470930SIngo Molnar 1780b4006796SArnaldo Carvalho de Melo if (record_opts__config(opts)) { 17812376c67aSArnaldo Carvalho de Melo status = -EINVAL; 178203ad9747SArnaldo Carvalho de Melo goto out_delete_evlist; 178369aad6f1SArnaldo Carvalho de Melo } 178469aad6f1SArnaldo Carvalho de Melo 1785515dbe48SJiri Olsa top.sym_evsel = evlist__first(top.evlist); 1786cc841580SArnaldo Carvalho de Melo 1787e3815264SArnaldo Carvalho de Melo if (!callchain_param.enabled) { 17881432ec34SNamhyung Kim symbol_conf.cumulate_callchain = false; 17891432ec34SNamhyung Kim perf_hpp__cancel_cumulate(); 17901432ec34SNamhyung Kim } 17911432ec34SNamhyung Kim 1792792aeafaSNamhyung Kim if (symbol_conf.cumulate_callchain && !callchain_param.order_set) 1793792aeafaSNamhyung Kim callchain_param.order = ORDER_CALLER; 1794792aeafaSNamhyung Kim 1795b01141f4SArnaldo Carvalho de Melo status = symbol__annotation_init(); 1796b01141f4SArnaldo Carvalho de Melo if (status < 0) 1797b01141f4SArnaldo Carvalho de Melo goto out_delete_evlist; 179869aad6f1SArnaldo Carvalho de Melo 17997f929aeaSNamhyung Kim annotation_config__init(); 18007f0b6fdeSArnaldo Carvalho de Melo 180169aad6f1SArnaldo Carvalho de Melo symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); 180270c819e4SChangbin Du status = symbol__init(NULL); 180370c819e4SChangbin Du if (status < 0) 180470c819e4SChangbin Du goto out_delete_evlist; 180569aad6f1SArnaldo Carvalho de Melo 180608e71542SNamhyung Kim sort__setup_elide(stdout); 1807ab81f3fdSArnaldo Carvalho de Melo 18081758af10SArnaldo Carvalho de Melo get_term_dimensions(&top.winsize); 18098c3e10ebSArnaldo Carvalho de Melo if (top.print_entries == 0) { 18101758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(&top); 1811244a1086SJiri Olsa signal(SIGWINCH, winch_sig); 18123b6ed988SArnaldo Carvalho de Melo } 18133b6ed988SArnaldo Carvalho de Melo 18142681bd85SNamhyung Kim top.session = perf_session__new(NULL, NULL); 18156ef81c55SMamatha Inamdar if (IS_ERR(top.session)) { 18166ef81c55SMamatha Inamdar status = PTR_ERR(top.session); 1817ef23cb59SArnaldo Carvalho de Melo top.session = NULL; 18180dba9e4bSChangbin Du goto out_delete_evlist; 18190dba9e4bSChangbin Du } 18200dba9e4bSChangbin Du 18210c5f1accSTiezhu Yang #ifdef HAVE_LIBBPF_SUPPORT 1822b38d85efSArnaldo Carvalho de Melo if (!top.record_opts.no_bpf_event) { 1823b38d85efSArnaldo Carvalho de Melo top.sb_evlist = evlist__new(); 1824b38d85efSArnaldo Carvalho de Melo 1825b38d85efSArnaldo Carvalho de Melo if (top.sb_evlist == NULL) { 1826b38d85efSArnaldo Carvalho de Melo pr_err("Couldn't create side band evlist.\n."); 1827dc64641cSShang XiaoJing status = -EINVAL; 1828b38d85efSArnaldo Carvalho de Melo goto out_delete_evlist; 1829b38d85efSArnaldo Carvalho de Melo } 1830b38d85efSArnaldo Carvalho de Melo 1831b38d85efSArnaldo Carvalho de Melo if (evlist__add_bpf_sb_event(top.sb_evlist, &perf_env)) { 1832b38d85efSArnaldo Carvalho de Melo pr_err("Couldn't ask for PERF_RECORD_BPF_EVENT side band events.\n."); 1833dc64641cSShang XiaoJing status = -EINVAL; 1834b38d85efSArnaldo Carvalho de Melo goto out_delete_evlist; 1835b38d85efSArnaldo Carvalho de Melo } 1836b38d85efSArnaldo Carvalho de Melo } 18370c5f1accSTiezhu Yang #endif 1838d56354dcSSong Liu 183908c83997SArnaldo Carvalho de Melo if (evlist__start_sb_thread(top.sb_evlist, target)) { 1840657ee553SSong Liu pr_debug("Couldn't start the BPF side band thread:\nBPF programs starting from now on won't be annotatable\n"); 1841657ee553SSong Liu opts->no_bpf_event = true; 1842657ee553SSong Liu } 1843657ee553SSong Liu 18441758af10SArnaldo Carvalho de Melo status = __cmd_top(&top); 1845806fb630SArnaldo Carvalho de Melo 1846657ee553SSong Liu if (!opts->no_bpf_event) 184708c83997SArnaldo Carvalho de Melo evlist__stop_sb_thread(top.sb_evlist); 1848657ee553SSong Liu 18490d37aa34SArnaldo Carvalho de Melo out_delete_evlist: 1850c12995a5SJiri Olsa evlist__delete(top.evlist); 18510dba9e4bSChangbin Du perf_session__delete(top.session); 18527f929aeaSNamhyung Kim annotation_options__exit(); 185369aad6f1SArnaldo Carvalho de Melo 185469aad6f1SArnaldo Carvalho de Melo return status; 185586470930SIngo Molnar } 1856