186470930SIngo Molnar /* 286470930SIngo Molnar * builtin-top.c 386470930SIngo Molnar * 486470930SIngo Molnar * Builtin top command: Display a continuously updated profile of 586470930SIngo Molnar * any workload, CPU or specific PID. 686470930SIngo Molnar * 786470930SIngo Molnar * Copyright (C) 2008, Red Hat Inc, Ingo Molnar <mingo@redhat.com> 8ab81f3fdSArnaldo Carvalho de Melo * 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> 986470930SIngo Molnar * 1086470930SIngo Molnar * Improvements and fixes by: 1186470930SIngo Molnar * 1286470930SIngo Molnar * Arjan van de Ven <arjan@linux.intel.com> 1386470930SIngo Molnar * Yanmin Zhang <yanmin.zhang@intel.com> 1486470930SIngo Molnar * Wu Fengguang <fengguang.wu@intel.com> 1586470930SIngo Molnar * Mike Galbraith <efault@gmx.de> 1686470930SIngo Molnar * Paul Mackerras <paulus@samba.org> 1786470930SIngo Molnar * 1886470930SIngo Molnar * Released under the GPL v2. (and only v2, not any later version) 1986470930SIngo Molnar */ 2086470930SIngo Molnar #include "builtin.h" 2186470930SIngo Molnar 2286470930SIngo Molnar #include "perf.h" 2386470930SIngo Molnar 2436532461SArnaldo Carvalho de Melo #include "util/annotate.h" 2541840d21STaeung Song #include "util/config.h" 2686470930SIngo Molnar #include "util/color.h" 275d8bb1ecSMathieu Poirier #include "util/drv_configs.h" 28361c99a6SArnaldo Carvalho de Melo #include "util/evlist.h" 2969aad6f1SArnaldo Carvalho de Melo #include "util/evsel.h" 305ab8c689SArnaldo Carvalho de Melo #include "util/event.h" 31b0a7d1a0SArnaldo Carvalho de Melo #include "util/machine.h" 32b3165f41SArnaldo Carvalho de Melo #include "util/session.h" 33b3165f41SArnaldo Carvalho de Melo #include "util/symbol.h" 34439d473bSArnaldo Carvalho de Melo #include "util/thread.h" 35fd78260bSArnaldo Carvalho de Melo #include "util/thread_map.h" 368c3e10ebSArnaldo Carvalho de Melo #include "util/top.h" 3743cbcd8aSArnaldo Carvalho de Melo #include <linux/rbtree.h> 384b6ab94eSJosh Poimboeuf #include <subcmd/parse-options.h> 3986470930SIngo Molnar #include "util/parse-events.h" 40a12b51c4SPaul Mackerras #include "util/cpumap.h" 4169aad6f1SArnaldo Carvalho de Melo #include "util/xyarray.h" 42ab81f3fdSArnaldo Carvalho de Melo #include "util/sort.h" 43b0742e90SArnaldo Carvalho de Melo #include "util/term.h" 446b118e92SDavid Ahern #include "util/intlist.h" 45a18b027eSAndi Kleen #include "util/parse-branch-options.h" 460d3942dbSSukadev Bhattiprolu #include "arch/common.h" 4786470930SIngo Molnar 488f28827aSFrederic Weisbecker #include "util/debug.h" 498f28827aSFrederic Weisbecker 5086470930SIngo Molnar #include <assert.h> 5131d68e7bSArnaldo Carvalho de Melo #include <elf.h> 5286470930SIngo Molnar #include <fcntl.h> 5386470930SIngo Molnar 5486470930SIngo Molnar #include <stdio.h> 55923c42c1SMike Galbraith #include <termios.h> 56923c42c1SMike Galbraith #include <unistd.h> 579486aa38SArnaldo Carvalho de Melo #include <inttypes.h> 5886470930SIngo Molnar 5986470930SIngo Molnar #include <errno.h> 6086470930SIngo Molnar #include <time.h> 6186470930SIngo Molnar #include <sched.h> 629607ad3aSArnaldo Carvalho de Melo #include <signal.h> 6386470930SIngo Molnar 6486470930SIngo Molnar #include <sys/syscall.h> 6586470930SIngo Molnar #include <sys/ioctl.h> 66a8fa4960SArnaldo Carvalho de Melo #include <poll.h> 6786470930SIngo Molnar #include <sys/prctl.h> 6886470930SIngo Molnar #include <sys/wait.h> 6986470930SIngo Molnar #include <sys/uio.h> 7031d68e7bSArnaldo Carvalho de Melo #include <sys/utsname.h> 7186470930SIngo Molnar #include <sys/mman.h> 7286470930SIngo Molnar 73531d2410SArnaldo Carvalho de Melo #include <linux/stringify.h> 74b9c4b0f4SArnaldo Carvalho de Melo #include <linux/time64.h> 7586470930SIngo Molnar #include <linux/types.h> 7686470930SIngo Molnar 773d689ed6SArnaldo Carvalho de Melo #include "sane_ctype.h" 783d689ed6SArnaldo Carvalho de Melo 7911859e82SArnaldo Carvalho de Melo static volatile int done; 80b135e5eeSJiri Olsa static volatile int resize; 8111859e82SArnaldo Carvalho de Melo 82933cbb1cSNamhyung Kim #define HEADER_LINE_NR 5 83933cbb1cSNamhyung Kim 841758af10SArnaldo Carvalho de Melo static void perf_top__update_print_entries(struct perf_top *top) 853b6ed988SArnaldo Carvalho de Melo { 86933cbb1cSNamhyung Kim top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; 873b6ed988SArnaldo Carvalho de Melo } 883b6ed988SArnaldo Carvalho de Melo 89244a1086SJiri Olsa static void winch_sig(int sig __maybe_unused) 903b6ed988SArnaldo Carvalho de Melo { 91b135e5eeSJiri Olsa resize = 1; 92b135e5eeSJiri Olsa } 931758af10SArnaldo Carvalho de Melo 94b135e5eeSJiri Olsa static void perf_top__resize(struct perf_top *top) 95b135e5eeSJiri Olsa { 961758af10SArnaldo Carvalho de Melo get_term_dimensions(&top->winsize); 971758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(top); 983b6ed988SArnaldo Carvalho de Melo } 993b6ed988SArnaldo Carvalho de Melo 1001758af10SArnaldo Carvalho de Melo static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) 101923c42c1SMike Galbraith { 102a7eec4c6SJiri Olsa struct perf_evsel *evsel = hists_to_evsel(he->hists); 103923c42c1SMike Galbraith struct symbol *sym; 104ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 105439d473bSArnaldo Carvalho de Melo struct map *map; 10636532461SArnaldo Carvalho de Melo int err = -1; 107923c42c1SMike Galbraith 108ab81f3fdSArnaldo Carvalho de Melo if (!he || !he->ms.sym) 109b0a9ab62SArnaldo Carvalho de Melo return -1; 110b0a9ab62SArnaldo Carvalho de Melo 111ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 112ab81f3fdSArnaldo Carvalho de Melo map = he->ms.map; 113b0a9ab62SArnaldo Carvalho de Melo 114b0a9ab62SArnaldo Carvalho de Melo /* 115b0a9ab62SArnaldo Carvalho de Melo * We can't annotate with just /proc/kallsyms 116b0a9ab62SArnaldo Carvalho de Melo */ 117bbb7f846SAdrian Hunter if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && 118bbb7f846SAdrian Hunter !dso__is_kcore(map->dso)) { 119ce6f4fabSArnaldo Carvalho de Melo pr_err("Can't annotate %s: No vmlinux file was found in the " 120ce6f4fabSArnaldo Carvalho de Melo "path\n", sym->name); 121ce6f4fabSArnaldo Carvalho de Melo sleep(1); 122b0a9ab62SArnaldo Carvalho de Melo return -1; 123b269876cSArnaldo Carvalho de Melo } 124b269876cSArnaldo Carvalho de Melo 125ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 126ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 127923c42c1SMike Galbraith 12814c8dde1SArnaldo Carvalho de Melo if (!symbol__hists(sym, top->evlist->nr_entries)) { 129c97cf422SArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 13036532461SArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 13136532461SArnaldo Carvalho de Melo sym->name); 132ce6f4fabSArnaldo Carvalho de Melo sleep(1); 133c97cf422SArnaldo Carvalho de Melo return err; 134923c42c1SMike Galbraith } 13536532461SArnaldo Carvalho de Melo 1365449f13cSArnaldo Carvalho de Melo err = symbol__annotate(sym, map, evsel, 0, NULL); 13736532461SArnaldo Carvalho de Melo if (err == 0) { 1381758af10SArnaldo Carvalho de Melo top->sym_filter_entry = he; 139ee51d851SArnaldo Carvalho de Melo } else { 140ee51d851SArnaldo Carvalho de Melo char msg[BUFSIZ]; 141ee51d851SArnaldo Carvalho de Melo symbol__strerror_disassemble(sym, map, err, msg, sizeof(msg)); 142ee51d851SArnaldo Carvalho de Melo pr_err("Couldn't annotate %s: %s\n", sym->name, msg); 14336532461SArnaldo Carvalho de Melo } 144c97cf422SArnaldo Carvalho de Melo 145ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 14636532461SArnaldo Carvalho de Melo return err; 147923c42c1SMike Galbraith } 148923c42c1SMike Galbraith 149ab81f3fdSArnaldo Carvalho de Melo static void __zero_source_counters(struct hist_entry *he) 150923c42c1SMike Galbraith { 151ab81f3fdSArnaldo Carvalho de Melo struct symbol *sym = he->ms.sym; 15236532461SArnaldo Carvalho de Melo symbol__annotate_zero_histograms(sym); 153923c42c1SMike Galbraith } 154923c42c1SMike Galbraith 15531d68e7bSArnaldo Carvalho de Melo static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) 15631d68e7bSArnaldo Carvalho de Melo { 15731d68e7bSArnaldo Carvalho de Melo struct utsname uts; 15831d68e7bSArnaldo Carvalho de Melo int err = uname(&uts); 15931d68e7bSArnaldo Carvalho de Melo 16031d68e7bSArnaldo Carvalho de Melo ui__warning("Out of bounds address found:\n\n" 16131d68e7bSArnaldo Carvalho de Melo "Addr: %" PRIx64 "\n" 16231d68e7bSArnaldo Carvalho de Melo "DSO: %s %c\n" 16331d68e7bSArnaldo Carvalho de Melo "Map: %" PRIx64 "-%" PRIx64 "\n" 16431d68e7bSArnaldo Carvalho de Melo "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" 16531d68e7bSArnaldo Carvalho de Melo "Arch: %s\n" 16631d68e7bSArnaldo Carvalho de Melo "Kernel: %s\n" 16731d68e7bSArnaldo Carvalho de Melo "Tools: %s\n\n" 16831d68e7bSArnaldo Carvalho de Melo "Not all samples will be on the annotation output.\n\n" 16931d68e7bSArnaldo Carvalho de Melo "Please report to linux-kernel@vger.kernel.org\n", 17031d68e7bSArnaldo Carvalho de Melo ip, map->dso->long_name, dso__symtab_origin(map->dso), 17131d68e7bSArnaldo Carvalho de Melo map->start, map->end, sym->start, sym->end, 17231d68e7bSArnaldo Carvalho de Melo sym->binding == STB_GLOBAL ? 'g' : 17331d68e7bSArnaldo Carvalho de Melo sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, 17431d68e7bSArnaldo Carvalho de Melo err ? "[unknown]" : uts.machine, 17531d68e7bSArnaldo Carvalho de Melo err ? "[unknown]" : uts.release, perf_version_string); 17631d68e7bSArnaldo Carvalho de Melo if (use_browser <= 0) 17731d68e7bSArnaldo Carvalho de Melo sleep(5); 17831d68e7bSArnaldo Carvalho de Melo 17931d68e7bSArnaldo Carvalho de Melo map->erange_warned = true; 18031d68e7bSArnaldo Carvalho de Melo } 18131d68e7bSArnaldo Carvalho de Melo 1821758af10SArnaldo Carvalho de Melo static void perf_top__record_precise_ip(struct perf_top *top, 1831758af10SArnaldo Carvalho de Melo struct hist_entry *he, 184bab89f6aSTaeung Song struct perf_sample *sample, 185e345f3bdSArnaldo Carvalho de Melo struct perf_evsel *evsel, u64 ip) 186923c42c1SMike Galbraith { 187ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 188beefb8d0SNamhyung Kim struct symbol *sym = he->ms.sym; 18948c65bdaSNamhyung Kim int err = 0; 190ce6f4fabSArnaldo Carvalho de Melo 191beefb8d0SNamhyung Kim if (sym == NULL || (use_browser == 0 && 192beefb8d0SNamhyung Kim (top->sym_filter_entry == NULL || 193beefb8d0SNamhyung Kim top->sym_filter_entry->ms.sym != sym))) 194923c42c1SMike Galbraith return; 195923c42c1SMike Galbraith 196ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 197ce6f4fabSArnaldo Carvalho de Melo 198ce6f4fabSArnaldo Carvalho de Melo if (pthread_mutex_trylock(¬es->lock)) 199923c42c1SMike Galbraith return; 200923c42c1SMike Galbraith 201e345f3bdSArnaldo Carvalho de Melo err = hist_entry__inc_addr_samples(he, sample, evsel, ip); 202923c42c1SMike Galbraith 203ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 20431d68e7bSArnaldo Carvalho de Melo 205151ee834SNamhyung Kim if (unlikely(err)) { 2067c50391fSNamhyung Kim /* 2077c50391fSNamhyung Kim * This function is now called with he->hists->lock held. 2087c50391fSNamhyung Kim * Release it before going to sleep. 2097c50391fSNamhyung Kim */ 2107c50391fSNamhyung Kim pthread_mutex_unlock(&he->hists->lock); 2117c50391fSNamhyung Kim 21231d68e7bSArnaldo Carvalho de Melo if (err == -ERANGE && !he->ms.map->erange_warned) 21331d68e7bSArnaldo Carvalho de Melo ui__warn_map_erange(he->ms.map, sym, ip); 214b66d8c0cSArnaldo Carvalho de Melo else if (err == -ENOMEM) { 215b66d8c0cSArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 216b66d8c0cSArnaldo Carvalho de Melo sym->name); 217b66d8c0cSArnaldo Carvalho de Melo sleep(1); 218b66d8c0cSArnaldo Carvalho de Melo } 2197c50391fSNamhyung Kim 2207c50391fSNamhyung Kim pthread_mutex_lock(&he->hists->lock); 221923c42c1SMike Galbraith } 222151ee834SNamhyung Kim } 223923c42c1SMike Galbraith 2241758af10SArnaldo Carvalho de Melo static void perf_top__show_details(struct perf_top *top) 225923c42c1SMike Galbraith { 2261758af10SArnaldo Carvalho de Melo struct hist_entry *he = top->sym_filter_entry; 227f681d593SJiri Olsa struct perf_evsel *evsel = hists_to_evsel(he->hists); 228ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 229923c42c1SMike Galbraith struct symbol *symbol; 23036532461SArnaldo Carvalho de Melo int more; 231923c42c1SMike Galbraith 232ab81f3fdSArnaldo Carvalho de Melo if (!he) 233923c42c1SMike Galbraith return; 234923c42c1SMike Galbraith 235ab81f3fdSArnaldo Carvalho de Melo symbol = he->ms.sym; 236ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(symbol); 237ce6f4fabSArnaldo Carvalho de Melo 238ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 239ce6f4fabSArnaldo Carvalho de Melo 240f681d593SJiri Olsa symbol__calc_percent(symbol, evsel); 241f681d593SJiri Olsa 242ce6f4fabSArnaldo Carvalho de Melo if (notes->src == NULL) 243ce6f4fabSArnaldo Carvalho de Melo goto out_unlock; 244923c42c1SMike Galbraith 2457289f83cSArnaldo Carvalho de Melo printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); 246982d410bSArnaldo Carvalho de Melo printf(" Events Pcnt (>=%d%%)\n", top->annotation_opts.min_pcnt); 247923c42c1SMike Galbraith 248982d410bSArnaldo Carvalho de Melo more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, &top->annotation_opts); 2495d484f99SArnaldo Carvalho de Melo 2505d484f99SArnaldo Carvalho de Melo if (top->evlist->enabled) { 2511758af10SArnaldo Carvalho de Melo if (top->zero) 2521758af10SArnaldo Carvalho de Melo symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); 25336532461SArnaldo Carvalho de Melo else 2541758af10SArnaldo Carvalho de Melo symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); 2555d484f99SArnaldo Carvalho de Melo } 25636532461SArnaldo Carvalho de Melo if (more != 0) 257923c42c1SMike Galbraith printf("%d lines not displayed, maybe increase display entries [e]\n", more); 258ce6f4fabSArnaldo Carvalho de Melo out_unlock: 259ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 260923c42c1SMike Galbraith } 26186470930SIngo Molnar 2621758af10SArnaldo Carvalho de Melo static void perf_top__print_sym_table(struct perf_top *top) 26386470930SIngo Molnar { 2648c3e10ebSArnaldo Carvalho de Melo char bf[160]; 2658c3e10ebSArnaldo Carvalho de Melo int printed = 0; 2661758af10SArnaldo Carvalho de Melo const int win_width = top->winsize.ws_col - 1; 267452ce03bSJiri Olsa struct perf_evsel *evsel = top->sym_evsel; 268452ce03bSJiri Olsa struct hists *hists = evsel__hists(evsel); 26986470930SIngo Molnar 27086470930SIngo Molnar puts(CONSOLE_CLEAR); 27186470930SIngo Molnar 2721758af10SArnaldo Carvalho de Melo perf_top__header_snprintf(top, bf, sizeof(bf)); 2738c3e10ebSArnaldo Carvalho de Melo printf("%s\n", bf); 27486470930SIngo Molnar 2751758af10SArnaldo Carvalho de Melo perf_top__reset_sample_counters(top); 27686470930SIngo Molnar 2771a105f74SArnaldo Carvalho de Melo printf("%-*.*s\n", win_width, win_width, graph_dotted_line); 27886470930SIngo Molnar 279a1ff5b05SKan Liang if (!top->record_opts.overwrite && 280a1ff5b05SKan Liang (hists->stats.nr_lost_warned != 281a1ff5b05SKan Liang hists->stats.nr_events[PERF_RECORD_LOST])) { 2824ea062edSArnaldo Carvalho de Melo hists->stats.nr_lost_warned = 2834ea062edSArnaldo Carvalho de Melo hists->stats.nr_events[PERF_RECORD_LOST]; 2847b27509fSArnaldo Carvalho de Melo color_fprintf(stdout, PERF_COLOR_RED, 2857b27509fSArnaldo Carvalho de Melo "WARNING: LOST %d chunks, Check IO/CPU overload", 2864ea062edSArnaldo Carvalho de Melo hists->stats.nr_lost_warned); 287ab81f3fdSArnaldo Carvalho de Melo ++printed; 28893fc64f1SArnaldo Carvalho de Melo } 28993fc64f1SArnaldo Carvalho de Melo 2901758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 2911758af10SArnaldo Carvalho de Melo perf_top__show_details(top); 292923c42c1SMike Galbraith return; 293923c42c1SMike Galbraith } 294923c42c1SMike Galbraith 2955d484f99SArnaldo Carvalho de Melo if (top->evlist->enabled) { 296701937bdSNamhyung Kim if (top->zero) { 2974ea062edSArnaldo Carvalho de Melo hists__delete_entries(hists); 298701937bdSNamhyung Kim } else { 2994ea062edSArnaldo Carvalho de Melo hists__decay_entries(hists, top->hide_user_symbols, 3001758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols); 301701937bdSNamhyung Kim } 3025d484f99SArnaldo Carvalho de Melo } 303701937bdSNamhyung Kim 3044ea062edSArnaldo Carvalho de Melo hists__collapse_resort(hists, NULL); 305452ce03bSJiri Olsa perf_evsel__output_resort(evsel, NULL); 306701937bdSNamhyung Kim 3074ea062edSArnaldo Carvalho de Melo hists__output_recalc_col_len(hists, top->print_entries - printed); 3081a105f74SArnaldo Carvalho de Melo putchar('\n'); 3094ea062edSArnaldo Carvalho de Melo hists__fprintf(hists, false, top->print_entries - printed, win_width, 310d05e3aaeSJiri Olsa top->min_percent, stdout, symbol_conf.use_callchain); 31186470930SIngo Molnar } 31286470930SIngo Molnar 313923c42c1SMike Galbraith static void prompt_integer(int *target, const char *msg) 314923c42c1SMike Galbraith { 315923c42c1SMike Galbraith char *buf = malloc(0), *p; 316923c42c1SMike Galbraith size_t dummy = 0; 317923c42c1SMike Galbraith int tmp; 318923c42c1SMike Galbraith 319923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 320923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 321923c42c1SMike Galbraith return; 322923c42c1SMike Galbraith 323923c42c1SMike Galbraith p = strchr(buf, '\n'); 324923c42c1SMike Galbraith if (p) 325923c42c1SMike Galbraith *p = 0; 326923c42c1SMike Galbraith 327923c42c1SMike Galbraith p = buf; 328923c42c1SMike Galbraith while(*p) { 329923c42c1SMike Galbraith if (!isdigit(*p)) 330923c42c1SMike Galbraith goto out_free; 331923c42c1SMike Galbraith p++; 332923c42c1SMike Galbraith } 333923c42c1SMike Galbraith tmp = strtoul(buf, NULL, 10); 334923c42c1SMike Galbraith *target = tmp; 335923c42c1SMike Galbraith out_free: 336923c42c1SMike Galbraith free(buf); 337923c42c1SMike Galbraith } 338923c42c1SMike Galbraith 339923c42c1SMike Galbraith static void prompt_percent(int *target, const char *msg) 340923c42c1SMike Galbraith { 341923c42c1SMike Galbraith int tmp = 0; 342923c42c1SMike Galbraith 343923c42c1SMike Galbraith prompt_integer(&tmp, msg); 344923c42c1SMike Galbraith if (tmp >= 0 && tmp <= 100) 345923c42c1SMike Galbraith *target = tmp; 346923c42c1SMike Galbraith } 347923c42c1SMike Galbraith 3481758af10SArnaldo Carvalho de Melo static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) 349923c42c1SMike Galbraith { 350923c42c1SMike Galbraith char *buf = malloc(0), *p; 3511758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; 3524ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(top->sym_evsel); 353ab81f3fdSArnaldo Carvalho de Melo struct rb_node *next; 354923c42c1SMike Galbraith size_t dummy = 0; 355923c42c1SMike Galbraith 356923c42c1SMike Galbraith /* zero counters of active symbol */ 357923c42c1SMike Galbraith if (syme) { 358923c42c1SMike Galbraith __zero_source_counters(syme); 3591758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 360923c42c1SMike Galbraith } 361923c42c1SMike Galbraith 362923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 363923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 364923c42c1SMike Galbraith goto out_free; 365923c42c1SMike Galbraith 366923c42c1SMike Galbraith p = strchr(buf, '\n'); 367923c42c1SMike Galbraith if (p) 368923c42c1SMike Galbraith *p = 0; 369923c42c1SMike Galbraith 3704ea062edSArnaldo Carvalho de Melo next = rb_first(&hists->entries); 371ab81f3fdSArnaldo Carvalho de Melo while (next) { 372ab81f3fdSArnaldo Carvalho de Melo n = rb_entry(next, struct hist_entry, rb_node); 373ab81f3fdSArnaldo Carvalho de Melo if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { 374ab81f3fdSArnaldo Carvalho de Melo found = n; 375923c42c1SMike Galbraith break; 376923c42c1SMike Galbraith } 377ab81f3fdSArnaldo Carvalho de Melo next = rb_next(&n->rb_node); 378923c42c1SMike Galbraith } 379923c42c1SMike Galbraith 380923c42c1SMike Galbraith if (!found) { 38166aeb6d5SKirill Smelkov fprintf(stderr, "Sorry, %s is not active.\n", buf); 382923c42c1SMike Galbraith sleep(1); 383923c42c1SMike Galbraith } else 3841758af10SArnaldo Carvalho de Melo perf_top__parse_source(top, found); 385923c42c1SMike Galbraith 386923c42c1SMike Galbraith out_free: 387923c42c1SMike Galbraith free(buf); 388923c42c1SMike Galbraith } 389923c42c1SMike Galbraith 3901758af10SArnaldo Carvalho de Melo static void perf_top__print_mapped_keys(struct perf_top *top) 391923c42c1SMike Galbraith { 392091bd2e9SMike Galbraith char *name = NULL; 393091bd2e9SMike Galbraith 3941758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 3951758af10SArnaldo Carvalho de Melo struct symbol *sym = top->sym_filter_entry->ms.sym; 396091bd2e9SMike Galbraith name = sym->name; 397091bd2e9SMike Galbraith } 398091bd2e9SMike Galbraith 399091bd2e9SMike Galbraith fprintf(stdout, "\nMapped keys:\n"); 4001758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); 4011758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); 402091bd2e9SMike Galbraith 4031758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) 4047289f83cSArnaldo Carvalho de Melo fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); 405091bd2e9SMike Galbraith 4061758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); 407091bd2e9SMike Galbraith 408982d410bSArnaldo Carvalho de Melo fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->annotation_opts.min_pcnt); 409091bd2e9SMike Galbraith fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); 410091bd2e9SMike Galbraith fprintf(stdout, "\t[S] stop annotation.\n"); 411091bd2e9SMike Galbraith 4128ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4138fce3743SSihyeon Jang "\t[K] hide kernel symbols. \t(%s)\n", 4141758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols ? "yes" : "no"); 4158ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4168ffcda17SArnaldo Carvalho de Melo "\t[U] hide user symbols. \t(%s)\n", 4171758af10SArnaldo Carvalho de Melo top->hide_user_symbols ? "yes" : "no"); 4181758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); 419091bd2e9SMike Galbraith fprintf(stdout, "\t[qQ] quit.\n"); 420091bd2e9SMike Galbraith } 421091bd2e9SMike Galbraith 4221758af10SArnaldo Carvalho de Melo static int perf_top__key_mapped(struct perf_top *top, int c) 423091bd2e9SMike Galbraith { 424091bd2e9SMike Galbraith switch (c) { 425091bd2e9SMike Galbraith case 'd': 426091bd2e9SMike Galbraith case 'e': 427091bd2e9SMike Galbraith case 'f': 428091bd2e9SMike Galbraith case 'z': 429091bd2e9SMike Galbraith case 'q': 430091bd2e9SMike Galbraith case 'Q': 4318ffcda17SArnaldo Carvalho de Melo case 'K': 4328ffcda17SArnaldo Carvalho de Melo case 'U': 4336cff0e8dSKirill Smelkov case 'F': 4346cff0e8dSKirill Smelkov case 's': 4356cff0e8dSKirill Smelkov case 'S': 436091bd2e9SMike Galbraith return 1; 437091bd2e9SMike Galbraith case 'E': 4381758af10SArnaldo Carvalho de Melo return top->evlist->nr_entries > 1 ? 1 : 0; 43983a0944fSIngo Molnar default: 44083a0944fSIngo Molnar break; 441091bd2e9SMike Galbraith } 442091bd2e9SMike Galbraith 443091bd2e9SMike Galbraith return 0; 444923c42c1SMike Galbraith } 445923c42c1SMike Galbraith 44611859e82SArnaldo Carvalho de Melo static bool perf_top__handle_keypress(struct perf_top *top, int c) 447923c42c1SMike Galbraith { 44811859e82SArnaldo Carvalho de Melo bool ret = true; 44911859e82SArnaldo Carvalho de Melo 4501758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) { 451091bd2e9SMike Galbraith struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 4523969cc09SJiri Olsa struct termios save; 453091bd2e9SMike Galbraith 4541758af10SArnaldo Carvalho de Melo perf_top__print_mapped_keys(top); 455091bd2e9SMike Galbraith fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); 456091bd2e9SMike Galbraith fflush(stdout); 457091bd2e9SMike Galbraith 4583969cc09SJiri Olsa set_term_quiet_input(&save); 459091bd2e9SMike Galbraith 460091bd2e9SMike Galbraith poll(&stdin_poll, 1, -1); 461091bd2e9SMike Galbraith c = getc(stdin); 462091bd2e9SMike Galbraith 463091bd2e9SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 4641758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) 46511859e82SArnaldo Carvalho de Melo return ret; 466091bd2e9SMike Galbraith } 467091bd2e9SMike Galbraith 468923c42c1SMike Galbraith switch (c) { 469923c42c1SMike Galbraith case 'd': 4701758af10SArnaldo Carvalho de Melo prompt_integer(&top->delay_secs, "Enter display delay"); 4711758af10SArnaldo Carvalho de Melo if (top->delay_secs < 1) 4721758af10SArnaldo Carvalho de Melo top->delay_secs = 1; 473923c42c1SMike Galbraith break; 474923c42c1SMike Galbraith case 'e': 4751758af10SArnaldo Carvalho de Melo prompt_integer(&top->print_entries, "Enter display entries (lines)"); 4761758af10SArnaldo Carvalho de Melo if (top->print_entries == 0) { 477b135e5eeSJiri Olsa perf_top__resize(top); 478244a1086SJiri Olsa signal(SIGWINCH, winch_sig); 479509605dbSStephane Eranian } else { 4803b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, SIG_DFL); 481509605dbSStephane Eranian } 482923c42c1SMike Galbraith break; 483923c42c1SMike Galbraith case 'E': 4841758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) { 485ce2d17caSAkihiro Nagai /* Select 0 as the default event: */ 486ce2d17caSAkihiro Nagai int counter = 0; 487ce2d17caSAkihiro Nagai 488923c42c1SMike Galbraith fprintf(stderr, "\nAvailable events:"); 48969aad6f1SArnaldo Carvalho de Melo 490e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(top->evlist, top->sym_evsel) 4917289f83cSArnaldo Carvalho de Melo fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); 492923c42c1SMike Galbraith 493ec52d976SArnaldo Carvalho de Melo prompt_integer(&counter, "Enter details event counter"); 494923c42c1SMike Galbraith 4951758af10SArnaldo Carvalho de Melo if (counter >= top->evlist->nr_entries) { 4960c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 4977289f83cSArnaldo Carvalho de Melo fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); 498923c42c1SMike Galbraith sleep(1); 49969aad6f1SArnaldo Carvalho de Melo break; 500923c42c1SMike Galbraith } 501e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(top->evlist, top->sym_evsel) 5021758af10SArnaldo Carvalho de Melo if (top->sym_evsel->idx == counter) 50369aad6f1SArnaldo Carvalho de Melo break; 504ec52d976SArnaldo Carvalho de Melo } else 5050c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 506923c42c1SMike Galbraith break; 507923c42c1SMike Galbraith case 'f': 5081758af10SArnaldo Carvalho de Melo prompt_integer(&top->count_filter, "Enter display event count filter"); 509923c42c1SMike Galbraith break; 510923c42c1SMike Galbraith case 'F': 511982d410bSArnaldo Carvalho de Melo prompt_percent(&top->annotation_opts.min_pcnt, 5121758af10SArnaldo Carvalho de Melo "Enter details display event filter (percent)"); 513923c42c1SMike Galbraith break; 5148ffcda17SArnaldo Carvalho de Melo case 'K': 5151758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols = !top->hide_kernel_symbols; 5168ffcda17SArnaldo Carvalho de Melo break; 517923c42c1SMike Galbraith case 'q': 518923c42c1SMike Galbraith case 'Q': 519923c42c1SMike Galbraith printf("exiting.\n"); 5201758af10SArnaldo Carvalho de Melo if (top->dump_symtab) 5211758af10SArnaldo Carvalho de Melo perf_session__fprintf_dsos(top->session, stderr); 52211859e82SArnaldo Carvalho de Melo ret = false; 52311859e82SArnaldo Carvalho de Melo break; 524923c42c1SMike Galbraith case 's': 5251758af10SArnaldo Carvalho de Melo perf_top__prompt_symbol(top, "Enter details symbol"); 526923c42c1SMike Galbraith break; 527923c42c1SMike Galbraith case 'S': 5281758af10SArnaldo Carvalho de Melo if (!top->sym_filter_entry) 529923c42c1SMike Galbraith break; 530923c42c1SMike Galbraith else { 5311758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry; 532923c42c1SMike Galbraith 5331758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 534923c42c1SMike Galbraith __zero_source_counters(syme); 535923c42c1SMike Galbraith } 536923c42c1SMike Galbraith break; 5378ffcda17SArnaldo Carvalho de Melo case 'U': 5381758af10SArnaldo Carvalho de Melo top->hide_user_symbols = !top->hide_user_symbols; 5398ffcda17SArnaldo Carvalho de Melo break; 540923c42c1SMike Galbraith case 'z': 5411758af10SArnaldo Carvalho de Melo top->zero = !top->zero; 542923c42c1SMike Galbraith break; 54383a0944fSIngo Molnar default: 54483a0944fSIngo Molnar break; 545923c42c1SMike Galbraith } 54611859e82SArnaldo Carvalho de Melo 54711859e82SArnaldo Carvalho de Melo return ret; 548923c42c1SMike Galbraith } 549923c42c1SMike Galbraith 550ab81f3fdSArnaldo Carvalho de Melo static void perf_top__sort_new_samples(void *arg) 551ab81f3fdSArnaldo Carvalho de Melo { 552ab81f3fdSArnaldo Carvalho de Melo struct perf_top *t = arg; 553452ce03bSJiri Olsa struct perf_evsel *evsel = t->sym_evsel; 5544ea062edSArnaldo Carvalho de Melo struct hists *hists; 5554ea062edSArnaldo Carvalho de Melo 556ab81f3fdSArnaldo Carvalho de Melo perf_top__reset_sample_counters(t); 557ab81f3fdSArnaldo Carvalho de Melo 558ab81f3fdSArnaldo Carvalho de Melo if (t->evlist->selected != NULL) 559ab81f3fdSArnaldo Carvalho de Melo t->sym_evsel = t->evlist->selected; 560ab81f3fdSArnaldo Carvalho de Melo 561452ce03bSJiri Olsa hists = evsel__hists(evsel); 5624ea062edSArnaldo Carvalho de Melo 5635d484f99SArnaldo Carvalho de Melo if (t->evlist->enabled) { 564701937bdSNamhyung Kim if (t->zero) { 5654ea062edSArnaldo Carvalho de Melo hists__delete_entries(hists); 566701937bdSNamhyung Kim } else { 5674ea062edSArnaldo Carvalho de Melo hists__decay_entries(hists, t->hide_user_symbols, 5681758af10SArnaldo Carvalho de Melo t->hide_kernel_symbols); 569ab81f3fdSArnaldo Carvalho de Melo } 5705d484f99SArnaldo Carvalho de Melo } 571ab81f3fdSArnaldo Carvalho de Melo 5724ea062edSArnaldo Carvalho de Melo hists__collapse_resort(hists, NULL); 573452ce03bSJiri Olsa perf_evsel__output_resort(evsel, NULL); 574701937bdSNamhyung Kim } 575701937bdSNamhyung Kim 5761758af10SArnaldo Carvalho de Melo static void *display_thread_tui(void *arg) 577c0443df1SArnaldo Carvalho de Melo { 5780d37aa34SArnaldo Carvalho de Melo struct perf_evsel *pos; 5791758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 580ab81f3fdSArnaldo Carvalho de Melo const char *help = "For a higher level overview, try: perf top --sort comm,dso"; 5819783adf7SNamhyung Kim struct hist_browser_timer hbt = { 5829783adf7SNamhyung Kim .timer = perf_top__sort_new_samples, 5839783adf7SNamhyung Kim .arg = top, 5849783adf7SNamhyung Kim .refresh = top->delay_secs, 5859783adf7SNamhyung Kim }; 586ab81f3fdSArnaldo Carvalho de Melo 587868a8329SKrister Johansen /* In order to read symbols from other namespaces perf to needs to call 588868a8329SKrister Johansen * setns(2). This isn't permitted if the struct_fs has multiple users. 589868a8329SKrister Johansen * unshare(2) the fs so that we may continue to setns into namespaces 590868a8329SKrister Johansen * that we're observing. 591868a8329SKrister Johansen */ 592868a8329SKrister Johansen unshare(CLONE_FS); 593868a8329SKrister Johansen 5941758af10SArnaldo Carvalho de Melo perf_top__sort_new_samples(top); 5950d37aa34SArnaldo Carvalho de Melo 5960d37aa34SArnaldo Carvalho de Melo /* 5970d37aa34SArnaldo Carvalho de Melo * Initialize the uid_filter_str, in the future the TUI will allow 5980d37aa34SArnaldo Carvalho de Melo * Zooming in/out UIDs. For now juse use whatever the user passed 5990d37aa34SArnaldo Carvalho de Melo * via --uid. 6000d37aa34SArnaldo Carvalho de Melo */ 601e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(top->evlist, pos) { 6024ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(pos); 6034ea062edSArnaldo Carvalho de Melo hists->uid_filter_str = top->record_opts.target.uid_str; 6044ea062edSArnaldo Carvalho de Melo } 6050d37aa34SArnaldo Carvalho de Melo 60613d1e536SNamhyung Kim perf_evlist__tui_browse_hists(top->evlist, help, &hbt, 6075d484f99SArnaldo Carvalho de Melo top->min_percent, 608a1ff5b05SKan Liang &top->session->header.env, 609a1ff5b05SKan Liang !top->record_opts.overwrite); 610ab81f3fdSArnaldo Carvalho de Melo 61111859e82SArnaldo Carvalho de Melo done = 1; 612c0443df1SArnaldo Carvalho de Melo return NULL; 613c0443df1SArnaldo Carvalho de Melo } 614c0443df1SArnaldo Carvalho de Melo 6154a1a9971SJiri Olsa static void display_sig(int sig __maybe_unused) 6164a1a9971SJiri Olsa { 6174a1a9971SJiri Olsa done = 1; 6184a1a9971SJiri Olsa } 6194a1a9971SJiri Olsa 6204a1a9971SJiri Olsa static void display_setup_sig(void) 6214a1a9971SJiri Olsa { 62209f4d78aSArnaldo Carvalho de Melo signal(SIGSEGV, sighandler_dump_stack); 62309f4d78aSArnaldo Carvalho de Melo signal(SIGFPE, sighandler_dump_stack); 6244a1a9971SJiri Olsa signal(SIGINT, display_sig); 6254a1a9971SJiri Olsa signal(SIGQUIT, display_sig); 6264a1a9971SJiri Olsa signal(SIGTERM, display_sig); 6274a1a9971SJiri Olsa } 6284a1a9971SJiri Olsa 6291758af10SArnaldo Carvalho de Melo static void *display_thread(void *arg) 63086470930SIngo Molnar { 63186470930SIngo Molnar struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 6329398c484SJiri Olsa struct termios save; 6331758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 634923c42c1SMike Galbraith int delay_msecs, c; 63586470930SIngo Molnar 636868a8329SKrister Johansen /* In order to read symbols from other namespaces perf to needs to call 637868a8329SKrister Johansen * setns(2). This isn't permitted if the struct_fs has multiple users. 638868a8329SKrister Johansen * unshare(2) the fs so that we may continue to setns into namespaces 639868a8329SKrister Johansen * that we're observing. 640868a8329SKrister Johansen */ 641868a8329SKrister Johansen unshare(CLONE_FS); 642868a8329SKrister Johansen 6434a1a9971SJiri Olsa display_setup_sig(); 6443af6e338SArnaldo Carvalho de Melo pthread__unblock_sigwinch(); 645923c42c1SMike Galbraith repeat: 646b9c4b0f4SArnaldo Carvalho de Melo delay_msecs = top->delay_secs * MSEC_PER_SEC; 6479398c484SJiri Olsa set_term_quiet_input(&save); 648923c42c1SMike Galbraith /* trash return*/ 649923c42c1SMike Galbraith getc(stdin); 65086470930SIngo Molnar 65111859e82SArnaldo Carvalho de Melo while (!done) { 6521758af10SArnaldo Carvalho de Melo perf_top__print_sym_table(top); 6533af6e338SArnaldo Carvalho de Melo /* 6543af6e338SArnaldo Carvalho de Melo * Either timeout expired or we got an EINTR due to SIGWINCH, 6553af6e338SArnaldo Carvalho de Melo * refresh screen in both cases. 6563af6e338SArnaldo Carvalho de Melo */ 6573af6e338SArnaldo Carvalho de Melo switch (poll(&stdin_poll, 1, delay_msecs)) { 6583af6e338SArnaldo Carvalho de Melo case 0: 6593af6e338SArnaldo Carvalho de Melo continue; 6603af6e338SArnaldo Carvalho de Melo case -1: 6613af6e338SArnaldo Carvalho de Melo if (errno == EINTR) 6623af6e338SArnaldo Carvalho de Melo continue; 6637b0214b7SArnaldo Carvalho de Melo __fallthrough; 6643af6e338SArnaldo Carvalho de Melo default: 665923c42c1SMike Galbraith c = getc(stdin); 666923c42c1SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 667923c42c1SMike Galbraith 66811859e82SArnaldo Carvalho de Melo if (perf_top__handle_keypress(top, c)) 669923c42c1SMike Galbraith goto repeat; 67011859e82SArnaldo Carvalho de Melo done = 1; 67111859e82SArnaldo Carvalho de Melo } 67211859e82SArnaldo Carvalho de Melo } 67386470930SIngo Molnar 6744a1a9971SJiri Olsa tcsetattr(0, TCSAFLUSH, &save); 67586470930SIngo Molnar return NULL; 67686470930SIngo Molnar } 67786470930SIngo Molnar 6787c50391fSNamhyung Kim static int hist_iter__top_callback(struct hist_entry_iter *iter, 6797c50391fSNamhyung Kim struct addr_location *al, bool single, 6807c50391fSNamhyung Kim void *arg) 6817c50391fSNamhyung Kim { 6827c50391fSNamhyung Kim struct perf_top *top = arg; 6837c50391fSNamhyung Kim struct hist_entry *he = iter->he; 6847c50391fSNamhyung Kim struct perf_evsel *evsel = iter->evsel; 6857c50391fSNamhyung Kim 6862e0453afSJiri Olsa if (perf_hpp_list.sym && single) 687e345f3bdSArnaldo Carvalho de Melo perf_top__record_precise_ip(top, he, iter->sample, evsel, al->addr); 6887c50391fSNamhyung Kim 689a18b027eSAndi Kleen hist__account_cycles(iter->sample->branch_stack, al, iter->sample, 690a18b027eSAndi Kleen !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY)); 6917c50391fSNamhyung Kim return 0; 6927c50391fSNamhyung Kim } 6937c50391fSNamhyung Kim 6941758af10SArnaldo Carvalho de Melo static void perf_event__process_sample(struct perf_tool *tool, 6951758af10SArnaldo Carvalho de Melo const union perf_event *event, 6967b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel, 6978d50e5b4SArnaldo Carvalho de Melo struct perf_sample *sample, 698743eb868SArnaldo Carvalho de Melo struct machine *machine) 69986470930SIngo Molnar { 7001758af10SArnaldo Carvalho de Melo struct perf_top *top = container_of(tool, struct perf_top, tool); 7011ed091c4SArnaldo Carvalho de Melo struct addr_location al; 70219d4ac3cSArnaldo Carvalho de Melo int err; 7035b2bb75aSArnaldo Carvalho de Melo 70423346f21SArnaldo Carvalho de Melo if (!machine && perf_guest) { 7056b118e92SDavid Ahern static struct intlist *seen; 7066b118e92SDavid Ahern 7076b118e92SDavid Ahern if (!seen) 708ffe0fb76SArnaldo Carvalho de Melo seen = intlist__new(NULL); 7096b118e92SDavid Ahern 710ef89325fSAdrian Hunter if (!intlist__has_entry(seen, sample->pid)) { 711a1645ce1SZhang, Yanmin pr_err("Can't find guest [%d]'s kernel information\n", 712ef89325fSAdrian Hunter sample->pid); 713ef89325fSAdrian Hunter intlist__add(seen, sample->pid); 7146b118e92SDavid Ahern } 715a1645ce1SZhang, Yanmin return; 716a1645ce1SZhang, Yanmin } 717a1645ce1SZhang, Yanmin 7180c095715SJoerg Roedel if (!machine) { 71911859e82SArnaldo Carvalho de Melo pr_err("%u unprocessable samples recorded.\r", 72075be989aSArnaldo Carvalho de Melo top->session->evlist->stats.nr_unprocessable_samples++); 7210c095715SJoerg Roedel return; 7220c095715SJoerg Roedel } 7230c095715SJoerg Roedel 7248115d60cSArnaldo Carvalho de Melo if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) 7251758af10SArnaldo Carvalho de Melo top->exact_samples++; 7261676b8a0SPeter Zijlstra 727bb3eb566SArnaldo Carvalho de Melo if (machine__resolve(machine, &al, sample) < 0) 7281ed091c4SArnaldo Carvalho de Melo return; 72986470930SIngo Molnar 730e77a0742SArnaldo Carvalho de Melo if (!machine->kptr_restrict_warned && 7315f6f5580SArnaldo Carvalho de Melo symbol_conf.kptr_restrict && 7325f6f5580SArnaldo Carvalho de Melo al.cpumode == PERF_RECORD_MISC_KERNEL) { 733b89a5124SArnaldo Carvalho de Melo if (!perf_evlist__exclude_kernel(top->session->evlist)) { 7345f6f5580SArnaldo Carvalho de Melo ui__warning( 7355f6f5580SArnaldo Carvalho de Melo "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" 7365f6f5580SArnaldo Carvalho de Melo "Check /proc/sys/kernel/kptr_restrict.\n\n" 7375f6f5580SArnaldo Carvalho de Melo "Kernel%s samples will not be resolved.\n", 738e94b861aSArnaldo Carvalho de Melo al.map && map__has_symbols(al.map) ? 7395f6f5580SArnaldo Carvalho de Melo " modules" : ""); 7405f6f5580SArnaldo Carvalho de Melo if (use_browser <= 0) 7415f6f5580SArnaldo Carvalho de Melo sleep(5); 742b89a5124SArnaldo Carvalho de Melo } 743e77a0742SArnaldo Carvalho de Melo machine->kptr_restrict_warned = true; 7445f6f5580SArnaldo Carvalho de Melo } 7455f6f5580SArnaldo Carvalho de Melo 74668766bfaSArnaldo Carvalho de Melo if (al.sym == NULL && al.map != NULL) { 747e4a338d0SArnaldo Carvalho de Melo const char *msg = "Kernel samples will not be resolved.\n"; 74872b8fa17SArnaldo Carvalho de Melo /* 74972b8fa17SArnaldo Carvalho de Melo * As we do lazy loading of symtabs we only will know if the 75072b8fa17SArnaldo Carvalho de Melo * specified vmlinux file is invalid when we actually have a 75172b8fa17SArnaldo Carvalho de Melo * hit in kernel space and then try to load it. So if we get 75272b8fa17SArnaldo Carvalho de Melo * here and there are _no_ symbols in the DSO backing the 75372b8fa17SArnaldo Carvalho de Melo * kernel map, bail out. 75472b8fa17SArnaldo Carvalho de Melo * 75572b8fa17SArnaldo Carvalho de Melo * We may never get here, for instance, if we use -K/ 75672b8fa17SArnaldo Carvalho de Melo * --hide-kernel-symbols, even if the user specifies an 75772b8fa17SArnaldo Carvalho de Melo * invalid --vmlinux ;-) 75872b8fa17SArnaldo Carvalho de Melo */ 759e77a0742SArnaldo Carvalho de Melo if (!machine->kptr_restrict_warned && !top->vmlinux_warned && 760e94b861aSArnaldo Carvalho de Melo __map__is_kernel(al.map) && map__has_symbols(al.map)) { 761e4a338d0SArnaldo Carvalho de Melo if (symbol_conf.vmlinux_name) { 76218425f13SArnaldo Carvalho de Melo char serr[256]; 76318425f13SArnaldo Carvalho de Melo dso__strerror_load(al.map->dso, serr, sizeof(serr)); 76418425f13SArnaldo Carvalho de Melo ui__warning("The %s file can't be used: %s\n%s", 76518425f13SArnaldo Carvalho de Melo symbol_conf.vmlinux_name, serr, msg); 766e4a338d0SArnaldo Carvalho de Melo } else { 767e4a338d0SArnaldo Carvalho de Melo ui__warning("A vmlinux file was not found.\n%s", 768e4a338d0SArnaldo Carvalho de Melo msg); 769e4a338d0SArnaldo Carvalho de Melo } 770e4a338d0SArnaldo Carvalho de Melo 771e4a338d0SArnaldo Carvalho de Melo if (use_browser <= 0) 772e4a338d0SArnaldo Carvalho de Melo sleep(5); 7731758af10SArnaldo Carvalho de Melo top->vmlinux_warned = true; 77472b8fa17SArnaldo Carvalho de Melo } 77572b8fa17SArnaldo Carvalho de Melo } 77672b8fa17SArnaldo Carvalho de Melo 777b55cc4edSArnaldo Carvalho de Melo if (al.sym == NULL || !al.sym->idle) { 7784ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(evsel); 7797c50391fSNamhyung Kim struct hist_entry_iter iter = { 780063bd936SNamhyung Kim .evsel = evsel, 781063bd936SNamhyung Kim .sample = sample, 7827c50391fSNamhyung Kim .add_entry_cb = hist_iter__top_callback, 7837c50391fSNamhyung Kim }; 78470db7533SArnaldo Carvalho de Melo 7857c50391fSNamhyung Kim if (symbol_conf.cumulate_callchain) 7867c50391fSNamhyung Kim iter.ops = &hist_iter_cumulative; 7877c50391fSNamhyung Kim else 7887c50391fSNamhyung Kim iter.ops = &hist_iter_normal; 78919d4ac3cSArnaldo Carvalho de Melo 7904ea062edSArnaldo Carvalho de Melo pthread_mutex_lock(&hists->lock); 7917c50391fSNamhyung Kim 792063bd936SNamhyung Kim err = hist_entry_iter__add(&iter, &al, top->max_stack, top); 7937c50391fSNamhyung Kim if (err < 0) 794ab81f3fdSArnaldo Carvalho de Melo pr_err("Problem incrementing symbol period, skipping event\n"); 795ab81f3fdSArnaldo Carvalho de Melo 7964ea062edSArnaldo Carvalho de Melo pthread_mutex_unlock(&hists->lock); 7975807806aSArnaldo Carvalho de Melo } 798ab81f3fdSArnaldo Carvalho de Melo 799b91fc39fSArnaldo Carvalho de Melo addr_location__put(&al); 80086470930SIngo Molnar } 80186470930SIngo Molnar 8021758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read_idx(struct perf_top *top, int idx) 80386470930SIngo Molnar { 804ebebbf08SKan Liang struct record_opts *opts = &top->record_opts; 805ebebbf08SKan Liang struct perf_evlist *evlist = top->evlist; 8068d50e5b4SArnaldo Carvalho de Melo struct perf_sample sample; 8077b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel; 808ebebbf08SKan Liang struct perf_mmap *md; 8091758af10SArnaldo Carvalho de Melo struct perf_session *session = top->session; 8108115d60cSArnaldo Carvalho de Melo union perf_event *event; 811743eb868SArnaldo Carvalho de Melo struct machine *machine; 8125538becaSFrederic Weisbecker int ret; 81386470930SIngo Molnar 814ebebbf08SKan Liang md = opts->overwrite ? &evlist->overwrite_mmap[idx] : &evlist->mmap[idx]; 815b9bae2c8SKan Liang if (perf_mmap__read_init(md) < 0) 816ebebbf08SKan Liang return; 817ebebbf08SKan Liang 8180019dc87SKan Liang while ((event = perf_mmap__read_event(md)) != NULL) { 819ebebbf08SKan Liang ret = perf_evlist__parse_sample(evlist, event, &sample); 8205538becaSFrederic Weisbecker if (ret) { 8215538becaSFrederic Weisbecker pr_err("Can't parse sample, err = %d\n", ret); 8228e50d384SZhouyi Zhou goto next_event; 8235538becaSFrederic Weisbecker } 82404391debSArnaldo Carvalho de Melo 8251758af10SArnaldo Carvalho de Melo evsel = perf_evlist__id2evsel(session->evlist, sample.id); 8267b27509fSArnaldo Carvalho de Melo assert(evsel != NULL); 8277b27509fSArnaldo Carvalho de Melo 8285b2bb75aSArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) 8291758af10SArnaldo Carvalho de Melo ++top->samples; 830743eb868SArnaldo Carvalho de Melo 831473398a2SArnaldo Carvalho de Melo switch (sample.cpumode) { 832743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_USER: 8331758af10SArnaldo Carvalho de Melo ++top->us_samples; 8341758af10SArnaldo Carvalho de Melo if (top->hide_user_symbols) 8358e50d384SZhouyi Zhou goto next_event; 83634ba5122SArnaldo Carvalho de Melo machine = &session->machines.host; 837743eb868SArnaldo Carvalho de Melo break; 838743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_KERNEL: 8391758af10SArnaldo Carvalho de Melo ++top->kernel_samples; 8401758af10SArnaldo Carvalho de Melo if (top->hide_kernel_symbols) 8418e50d384SZhouyi Zhou goto next_event; 84234ba5122SArnaldo Carvalho de Melo machine = &session->machines.host; 843743eb868SArnaldo Carvalho de Melo break; 844743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_KERNEL: 8451758af10SArnaldo Carvalho de Melo ++top->guest_kernel_samples; 846ef89325fSAdrian Hunter machine = perf_session__find_machine(session, 847ef89325fSAdrian Hunter sample.pid); 848743eb868SArnaldo Carvalho de Melo break; 849743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_USER: 8501758af10SArnaldo Carvalho de Melo ++top->guest_us_samples; 851743eb868SArnaldo Carvalho de Melo /* 852743eb868SArnaldo Carvalho de Melo * TODO: we don't process guest user from host side 853743eb868SArnaldo Carvalho de Melo * except simple counting. 854743eb868SArnaldo Carvalho de Melo */ 8558e50d384SZhouyi Zhou goto next_event; 8564b37af59SNamhyung Kim default: 8574b37af59SNamhyung Kim if (event->header.type == PERF_RECORD_SAMPLE) 8584b37af59SNamhyung Kim goto next_event; 8594b37af59SNamhyung Kim machine = &session->machines.host; 8604b37af59SNamhyung Kim break; 861743eb868SArnaldo Carvalho de Melo } 862743eb868SArnaldo Carvalho de Melo 863743eb868SArnaldo Carvalho de Melo 8641758af10SArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) { 8651758af10SArnaldo Carvalho de Melo perf_event__process_sample(&top->tool, event, evsel, 8661758af10SArnaldo Carvalho de Melo &sample, machine); 8671758af10SArnaldo Carvalho de Melo } else if (event->header.type < PERF_RECORD_MAX) { 8684ea062edSArnaldo Carvalho de Melo hists__inc_nr_events(evsel__hists(evsel), event->header.type); 869162f0befSFrederic Weisbecker machine__process_event(machine, event, &sample); 8707b27509fSArnaldo Carvalho de Melo } else 87175be989aSArnaldo Carvalho de Melo ++session->evlist->stats.nr_unknown_events; 8728e50d384SZhouyi Zhou next_event: 873d6ace3dfSKan Liang perf_mmap__consume(md); 87486470930SIngo Molnar } 875ebebbf08SKan Liang 876ebebbf08SKan Liang perf_mmap__read_done(md); 87786470930SIngo Molnar } 87886470930SIngo Molnar 8791758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read(struct perf_top *top) 8802f01190aSFrederic Weisbecker { 881ebebbf08SKan Liang bool overwrite = top->record_opts.overwrite; 882ebebbf08SKan Liang struct perf_evlist *evlist = top->evlist; 8838cc42de7SKan Liang unsigned long long start, end; 88470db7533SArnaldo Carvalho de Melo int i; 8852f01190aSFrederic Weisbecker 8868cc42de7SKan Liang start = rdclock(); 887ebebbf08SKan Liang if (overwrite) 888ebebbf08SKan Liang perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_DATA_PENDING); 889ebebbf08SKan Liang 8901758af10SArnaldo Carvalho de Melo for (i = 0; i < top->evlist->nr_mmaps; i++) 8911758af10SArnaldo Carvalho de Melo perf_top__mmap_read_idx(top, i); 892ebebbf08SKan Liang 893ebebbf08SKan Liang if (overwrite) { 894ebebbf08SKan Liang perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_EMPTY); 895ebebbf08SKan Liang perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_RUNNING); 896ebebbf08SKan Liang } 8978cc42de7SKan Liang end = rdclock(); 8988cc42de7SKan Liang 8998cc42de7SKan Liang if ((end - start) > (unsigned long long)top->delay_secs * NSEC_PER_SEC) 9008cc42de7SKan Liang ui__warning("Too slow to read ring buffer.\n" 9018cc42de7SKan Liang "Please try increasing the period (-c) or\n" 9028cc42de7SKan Liang "decreasing the freq (-F) or\n" 9038cc42de7SKan Liang "limiting the number of CPUs (-C)\n"); 9042f01190aSFrederic Weisbecker } 9052f01190aSFrederic Weisbecker 90663878a53SKan Liang /* 90763878a53SKan Liang * Check per-event overwrite term. 90863878a53SKan Liang * perf top should support consistent term for all events. 90963878a53SKan Liang * - All events don't have per-event term 91063878a53SKan Liang * E.g. "cpu/cpu-cycles/,cpu/instructions/" 91163878a53SKan Liang * Nothing change, return 0. 91263878a53SKan Liang * - All events have same per-event term 91363878a53SKan Liang * E.g. "cpu/cpu-cycles,no-overwrite/,cpu/instructions,no-overwrite/ 91463878a53SKan Liang * Using the per-event setting to replace the opts->overwrite if 91563878a53SKan Liang * they are different, then return 0. 91663878a53SKan Liang * - Events have different per-event term 91763878a53SKan Liang * E.g. "cpu/cpu-cycles,overwrite/,cpu/instructions,no-overwrite/" 91863878a53SKan Liang * Return -1 91963878a53SKan Liang * - Some of the event set per-event term, but some not. 92063878a53SKan Liang * E.g. "cpu/cpu-cycles/,cpu/instructions,no-overwrite/" 92163878a53SKan Liang * Return -1 92263878a53SKan Liang */ 92363878a53SKan Liang static int perf_top__overwrite_check(struct perf_top *top) 92463878a53SKan Liang { 92563878a53SKan Liang struct record_opts *opts = &top->record_opts; 92663878a53SKan Liang struct perf_evlist *evlist = top->evlist; 92763878a53SKan Liang struct perf_evsel_config_term *term; 92863878a53SKan Liang struct list_head *config_terms; 92963878a53SKan Liang struct perf_evsel *evsel; 93063878a53SKan Liang int set, overwrite = -1; 93163878a53SKan Liang 93263878a53SKan Liang evlist__for_each_entry(evlist, evsel) { 93363878a53SKan Liang set = -1; 93463878a53SKan Liang config_terms = &evsel->config_terms; 93563878a53SKan Liang list_for_each_entry(term, config_terms, list) { 93663878a53SKan Liang if (term->type == PERF_EVSEL__CONFIG_TERM_OVERWRITE) 93763878a53SKan Liang set = term->val.overwrite ? 1 : 0; 93863878a53SKan Liang } 93963878a53SKan Liang 94063878a53SKan Liang /* no term for current and previous event (likely) */ 94163878a53SKan Liang if ((overwrite < 0) && (set < 0)) 94263878a53SKan Liang continue; 94363878a53SKan Liang 94463878a53SKan Liang /* has term for both current and previous event, compare */ 94563878a53SKan Liang if ((overwrite >= 0) && (set >= 0) && (overwrite != set)) 94663878a53SKan Liang return -1; 94763878a53SKan Liang 94863878a53SKan Liang /* no term for current event but has term for previous one */ 94963878a53SKan Liang if ((overwrite >= 0) && (set < 0)) 95063878a53SKan Liang return -1; 95163878a53SKan Liang 95263878a53SKan Liang /* has term for current event */ 95363878a53SKan Liang if ((overwrite < 0) && (set >= 0)) { 95463878a53SKan Liang /* if it's first event, set overwrite */ 95563878a53SKan Liang if (evsel == perf_evlist__first(evlist)) 95663878a53SKan Liang overwrite = set; 95763878a53SKan Liang else 95863878a53SKan Liang return -1; 95963878a53SKan Liang } 96063878a53SKan Liang } 96163878a53SKan Liang 96263878a53SKan Liang if ((overwrite >= 0) && (opts->overwrite != overwrite)) 96363878a53SKan Liang opts->overwrite = overwrite; 96463878a53SKan Liang 96563878a53SKan Liang return 0; 96663878a53SKan Liang } 96763878a53SKan Liang 968204721d7SKan Liang static int perf_top_overwrite_fallback(struct perf_top *top, 969204721d7SKan Liang struct perf_evsel *evsel) 970204721d7SKan Liang { 971204721d7SKan Liang struct record_opts *opts = &top->record_opts; 972204721d7SKan Liang struct perf_evlist *evlist = top->evlist; 973204721d7SKan Liang struct perf_evsel *counter; 974204721d7SKan Liang 975204721d7SKan Liang if (!opts->overwrite) 976204721d7SKan Liang return 0; 977204721d7SKan Liang 978204721d7SKan Liang /* only fall back when first event fails */ 979204721d7SKan Liang if (evsel != perf_evlist__first(evlist)) 980204721d7SKan Liang return 0; 981204721d7SKan Liang 982204721d7SKan Liang evlist__for_each_entry(evlist, counter) 983204721d7SKan Liang counter->attr.write_backward = false; 984204721d7SKan Liang opts->overwrite = false; 985853745f5SKan Liang pr_debug2("fall back to non-overwrite mode\n"); 986204721d7SKan Liang return 1; 987204721d7SKan Liang } 988204721d7SKan Liang 98911859e82SArnaldo Carvalho de Melo static int perf_top__start_counters(struct perf_top *top) 99072cb7013SArnaldo Carvalho de Melo { 991d6195a6aSArnaldo Carvalho de Melo char msg[BUFSIZ]; 9926a4bb04cSJiri Olsa struct perf_evsel *counter; 9931758af10SArnaldo Carvalho de Melo struct perf_evlist *evlist = top->evlist; 994b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 995727ab04eSArnaldo Carvalho de Melo 99663878a53SKan Liang if (perf_top__overwrite_check(top)) { 99763878a53SKan Liang ui__error("perf top only support consistent per-event " 99863878a53SKan Liang "overwrite setting for all events\n"); 99963878a53SKan Liang goto out_err; 100063878a53SKan Liang } 100163878a53SKan Liang 1002e68ae9cfSArnaldo Carvalho de Melo perf_evlist__config(evlist, opts, &callchain_param); 100372cb7013SArnaldo Carvalho de Melo 1004e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(evlist, counter) { 100572cb7013SArnaldo Carvalho de Melo try_again: 10061758af10SArnaldo Carvalho de Melo if (perf_evsel__open(counter, top->evlist->cpus, 10076a4bb04cSJiri Olsa top->evlist->threads) < 0) { 1008204721d7SKan Liang 1009204721d7SKan Liang /* 1010204721d7SKan Liang * Specially handle overwrite fall back. 1011204721d7SKan Liang * Because perf top is the only tool which has 1012204721d7SKan Liang * overwrite mode by default, support 1013204721d7SKan Liang * both overwrite and non-overwrite mode, and 1014204721d7SKan Liang * require consistent mode for all events. 1015204721d7SKan Liang * 1016204721d7SKan Liang * May move it to generic code with more tools 1017204721d7SKan Liang * have similar attribute. 1018204721d7SKan Liang */ 1019204721d7SKan Liang if (perf_missing_features.write_backward && 1020204721d7SKan Liang perf_top_overwrite_fallback(top, counter)) 1021204721d7SKan Liang goto try_again; 1022204721d7SKan Liang 102356e52e85SArnaldo Carvalho de Melo if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { 1024bb963e16SNamhyung Kim if (verbose > 0) 1025c0a54341SArnaldo Carvalho de Melo ui__warning("%s\n", msg); 102672cb7013SArnaldo Carvalho de Melo goto try_again; 102772cb7013SArnaldo Carvalho de Melo } 1028c286c419SArnaldo Carvalho de Melo 102956e52e85SArnaldo Carvalho de Melo perf_evsel__open_strerror(counter, &opts->target, 103056e52e85SArnaldo Carvalho de Melo errno, msg, sizeof(msg)); 103156e52e85SArnaldo Carvalho de Melo ui__error("%s\n", msg); 1032c286c419SArnaldo Carvalho de Melo goto out_err; 103372cb7013SArnaldo Carvalho de Melo } 103472cb7013SArnaldo Carvalho de Melo } 103570db7533SArnaldo Carvalho de Melo 1036f74b9d3aSWang Nan if (perf_evlist__mmap(evlist, opts->mmap_pages) < 0) { 10373780f488SNamhyung Kim ui__error("Failed to mmap with %d (%s)\n", 1038c8b5f2c9SArnaldo Carvalho de Melo errno, str_error_r(errno, msg, sizeof(msg))); 1039c286c419SArnaldo Carvalho de Melo goto out_err; 1040c286c419SArnaldo Carvalho de Melo } 1041c286c419SArnaldo Carvalho de Melo 104211859e82SArnaldo Carvalho de Melo return 0; 1043c286c419SArnaldo Carvalho de Melo 1044c286c419SArnaldo Carvalho de Melo out_err: 104511859e82SArnaldo Carvalho de Melo return -1; 104672cb7013SArnaldo Carvalho de Melo } 104772cb7013SArnaldo Carvalho de Melo 1048e3815264SArnaldo Carvalho de Melo static int callchain_param__setup_sample_type(struct callchain_param *callchain) 104919d4ac3cSArnaldo Carvalho de Melo { 10502e0453afSJiri Olsa if (!perf_hpp_list.sym) { 1051e3815264SArnaldo Carvalho de Melo if (callchain->enabled) { 10523780f488SNamhyung Kim ui__error("Selected -g but \"sym\" not present in --sort/-s."); 105319d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 105419d4ac3cSArnaldo Carvalho de Melo } 1055e3815264SArnaldo Carvalho de Melo } else if (callchain->mode != CHAIN_NONE) { 1056e3815264SArnaldo Carvalho de Melo if (callchain_register_param(callchain) < 0) { 10573780f488SNamhyung Kim ui__error("Can't register callchain params.\n"); 105819d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 105919d4ac3cSArnaldo Carvalho de Melo } 106019d4ac3cSArnaldo Carvalho de Melo } 106119d4ac3cSArnaldo Carvalho de Melo 106219d4ac3cSArnaldo Carvalho de Melo return 0; 106319d4ac3cSArnaldo Carvalho de Melo } 106419d4ac3cSArnaldo Carvalho de Melo 10651758af10SArnaldo Carvalho de Melo static int __cmd_top(struct perf_top *top) 1066716c69feSIngo Molnar { 10675d8bb1ecSMathieu Poirier char msg[512]; 10685d8bb1ecSMathieu Poirier struct perf_evsel *pos; 10695d8bb1ecSMathieu Poirier struct perf_evsel_config_term *err_term; 10705d8bb1ecSMathieu Poirier struct perf_evlist *evlist = top->evlist; 1071b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 1072716c69feSIngo Molnar pthread_t thread; 107319d4ac3cSArnaldo Carvalho de Melo int ret; 1074f5fc1412SJiri Olsa 10756a4d98d7SJiri Olsa top->session = perf_session__new(NULL, false, NULL); 10761758af10SArnaldo Carvalho de Melo if (top->session == NULL) 107752e02834STaeung Song return -1; 1078716c69feSIngo Molnar 10790d3942dbSSukadev Bhattiprolu if (!objdump_path) { 1080eebd0bfcSArnaldo Carvalho de Melo ret = perf_env__lookup_objdump(&top->session->header.env); 10810d3942dbSSukadev Bhattiprolu if (ret) 10820d3942dbSSukadev Bhattiprolu goto out_delete; 10830d3942dbSSukadev Bhattiprolu } 10840d3942dbSSukadev Bhattiprolu 1085e3815264SArnaldo Carvalho de Melo ret = callchain_param__setup_sample_type(&callchain_param); 108619d4ac3cSArnaldo Carvalho de Melo if (ret) 108719d4ac3cSArnaldo Carvalho de Melo goto out_delete; 108819d4ac3cSArnaldo Carvalho de Melo 10899d8b172fSMasami Hiramatsu if (perf_session__register_idle_thread(top->session) < 0) 1090c53d138dSNamhyung Kim goto out_delete; 1091c53d138dSNamhyung Kim 10920c6b4994SKan Liang if (top->nr_threads_synthesize > 1) 1093340b47f5SKan Liang perf_set_multithreaded(); 1094340b47f5SKan Liang 1095a33fbd56SArnaldo Carvalho de Melo machine__synthesize_threads(&top->session->machines.host, &opts->target, 1096340b47f5SKan Liang top->evlist->threads, false, 1097340b47f5SKan Liang opts->proc_map_timeout, 10980c6b4994SKan Liang top->nr_threads_synthesize); 1099340b47f5SKan Liang 11000c6b4994SKan Liang if (top->nr_threads_synthesize > 1) 1101340b47f5SKan Liang perf_set_singlethreaded(); 11022e7ea3abSKan Liang 110335a634f7SJiri Olsa if (perf_hpp_list.socket) { 11042e7ea3abSKan Liang ret = perf_env__read_cpu_topology_map(&perf_env); 11052e7ea3abSKan Liang if (ret < 0) 11062e7ea3abSKan Liang goto out_err_cpu_topo; 11072e7ea3abSKan Liang } 11082e7ea3abSKan Liang 110911859e82SArnaldo Carvalho de Melo ret = perf_top__start_counters(top); 111011859e82SArnaldo Carvalho de Melo if (ret) 111111859e82SArnaldo Carvalho de Melo goto out_delete; 111211859e82SArnaldo Carvalho de Melo 11135d8bb1ecSMathieu Poirier ret = perf_evlist__apply_drv_configs(evlist, &pos, &err_term); 11145d8bb1ecSMathieu Poirier if (ret) { 111562d94b00SArnaldo Carvalho de Melo pr_err("failed to set config \"%s\" on event %s with %d (%s)\n", 11165d8bb1ecSMathieu Poirier err_term->val.drv_cfg, perf_evsel__name(pos), errno, 11175d8bb1ecSMathieu Poirier str_error_r(errno, msg, sizeof(msg))); 11185d8bb1ecSMathieu Poirier goto out_delete; 11195d8bb1ecSMathieu Poirier } 11205d8bb1ecSMathieu Poirier 11211758af10SArnaldo Carvalho de Melo top->session->evlist = top->evlist; 11227b56cce2SArnaldo Carvalho de Melo perf_session__set_id_hdr_size(top->session); 112386470930SIngo Molnar 11242376c67aSArnaldo Carvalho de Melo /* 11252376c67aSArnaldo Carvalho de Melo * When perf is starting the traced process, all the events (apart from 11262376c67aSArnaldo Carvalho de Melo * group members) have enable_on_exec=1 set, so don't spoil it by 11272376c67aSArnaldo Carvalho de Melo * prematurely enabling them. 11282376c67aSArnaldo Carvalho de Melo * 11292376c67aSArnaldo Carvalho de Melo * XXX 'top' still doesn't start workloads like record, trace, but should, 11302376c67aSArnaldo Carvalho de Melo * so leave the check here. 11312376c67aSArnaldo Carvalho de Melo */ 1132602ad878SArnaldo Carvalho de Melo if (!target__none(&opts->target)) 11332376c67aSArnaldo Carvalho de Melo perf_evlist__enable(top->evlist); 11342376c67aSArnaldo Carvalho de Melo 11352f01190aSFrederic Weisbecker /* Wait for a minimal set of events before starting the snapshot */ 1136f66a889dSArnaldo Carvalho de Melo perf_evlist__poll(top->evlist, 100); 11372f01190aSFrederic Weisbecker 11381758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 11392f01190aSFrederic Weisbecker 114011859e82SArnaldo Carvalho de Melo ret = -1; 1141c0443df1SArnaldo Carvalho de Melo if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : 11421758af10SArnaldo Carvalho de Melo display_thread), top)) { 11433780f488SNamhyung Kim ui__error("Could not create display thread.\n"); 114411859e82SArnaldo Carvalho de Melo goto out_delete; 114586470930SIngo Molnar } 114686470930SIngo Molnar 11471758af10SArnaldo Carvalho de Melo if (top->realtime_prio) { 114886470930SIngo Molnar struct sched_param param; 114986470930SIngo Molnar 11501758af10SArnaldo Carvalho de Melo param.sched_priority = top->realtime_prio; 115186470930SIngo Molnar if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { 11523780f488SNamhyung Kim ui__error("Could not set realtime priority.\n"); 1153ae256fa2SJiri Olsa goto out_join; 115486470930SIngo Molnar } 115586470930SIngo Molnar } 115686470930SIngo Molnar 115711859e82SArnaldo Carvalho de Melo while (!done) { 11581758af10SArnaldo Carvalho de Melo u64 hits = top->samples; 115986470930SIngo Molnar 11601758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 116186470930SIngo Molnar 1162ebebbf08SKan Liang if (opts->overwrite || (hits == top->samples)) 1163f66a889dSArnaldo Carvalho de Melo ret = perf_evlist__poll(top->evlist, 100); 1164b135e5eeSJiri Olsa 1165b135e5eeSJiri Olsa if (resize) { 1166b135e5eeSJiri Olsa perf_top__resize(top); 1167b135e5eeSJiri Olsa resize = 0; 1168b135e5eeSJiri Olsa } 116986470930SIngo Molnar } 117086470930SIngo Molnar 117111859e82SArnaldo Carvalho de Melo ret = 0; 1172ae256fa2SJiri Olsa out_join: 1173ae256fa2SJiri Olsa pthread_join(thread, NULL); 117419d4ac3cSArnaldo Carvalho de Melo out_delete: 11751758af10SArnaldo Carvalho de Melo perf_session__delete(top->session); 11761758af10SArnaldo Carvalho de Melo top->session = NULL; 117719d4ac3cSArnaldo Carvalho de Melo 117811859e82SArnaldo Carvalho de Melo return ret; 11792e7ea3abSKan Liang 11802e7ea3abSKan Liang out_err_cpu_topo: { 11812e7ea3abSKan Liang char errbuf[BUFSIZ]; 1182c8b5f2c9SArnaldo Carvalho de Melo const char *err = str_error_r(-ret, errbuf, sizeof(errbuf)); 11832e7ea3abSKan Liang 11842e7ea3abSKan Liang ui__error("Could not read the CPU topology map: %s\n", err); 11852e7ea3abSKan Liang goto out_delete; 11862e7ea3abSKan Liang } 118719d4ac3cSArnaldo Carvalho de Melo } 118819d4ac3cSArnaldo Carvalho de Melo 118919d4ac3cSArnaldo Carvalho de Melo static int 1190ae779a63SJiri Olsa callchain_opt(const struct option *opt, const char *arg, int unset) 1191ae779a63SJiri Olsa { 1192ae779a63SJiri Olsa symbol_conf.use_callchain = true; 1193ae779a63SJiri Olsa return record_callchain_opt(opt, arg, unset); 1194ae779a63SJiri Olsa } 1195ae779a63SJiri Olsa 1196ae779a63SJiri Olsa static int 11971758af10SArnaldo Carvalho de Melo parse_callchain_opt(const struct option *opt, const char *arg, int unset) 119819d4ac3cSArnaldo Carvalho de Melo { 11992ddd5c04SArnaldo Carvalho de Melo struct callchain_param *callchain = opt->value; 1200a2c10d39SNamhyung Kim 12012ddd5c04SArnaldo Carvalho de Melo callchain->enabled = !unset; 12022ddd5c04SArnaldo Carvalho de Melo callchain->record_mode = CALLCHAIN_FP; 1203a2c10d39SNamhyung Kim 1204a2c10d39SNamhyung Kim /* 1205a2c10d39SNamhyung Kim * --no-call-graph 1206a2c10d39SNamhyung Kim */ 1207a2c10d39SNamhyung Kim if (unset) { 1208a2c10d39SNamhyung Kim symbol_conf.use_callchain = false; 12092ddd5c04SArnaldo Carvalho de Melo callchain->record_mode = CALLCHAIN_NONE; 1210a2c10d39SNamhyung Kim return 0; 1211a2c10d39SNamhyung Kim } 1212a2c10d39SNamhyung Kim 1213a2c10d39SNamhyung Kim return parse_callchain_top_opt(arg); 121486470930SIngo Molnar } 121586470930SIngo Molnar 1216b8cbb349SWang Nan static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused) 1217eb853e80SJiri Olsa { 1218a3a4a3b3SYisheng Xie if (!strcmp(var, "top.call-graph")) { 1219a3a4a3b3SYisheng Xie var = "call-graph.record-mode"; 1220a3a4a3b3SYisheng Xie return perf_default_config(var, value, cb); 1221a3a4a3b3SYisheng Xie } 1222104ac991SNamhyung Kim if (!strcmp(var, "top.children")) { 1223104ac991SNamhyung Kim symbol_conf.cumulate_callchain = perf_config_bool(var, value); 1224104ac991SNamhyung Kim return 0; 1225104ac991SNamhyung Kim } 1226eb853e80SJiri Olsa 1227b8cbb349SWang Nan return 0; 1228eb853e80SJiri Olsa } 1229eb853e80SJiri Olsa 1230fa5df943SNamhyung Kim static int 1231fa5df943SNamhyung Kim parse_percent_limit(const struct option *opt, const char *arg, 1232fa5df943SNamhyung Kim int unset __maybe_unused) 1233fa5df943SNamhyung Kim { 1234fa5df943SNamhyung Kim struct perf_top *top = opt->value; 1235fa5df943SNamhyung Kim 1236fa5df943SNamhyung Kim top->min_percent = strtof(arg, NULL); 1237fa5df943SNamhyung Kim return 0; 1238fa5df943SNamhyung Kim } 1239fa5df943SNamhyung Kim 124076a26549SNamhyung Kim const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP 124176a26549SNamhyung Kim "\n\t\t\t\tDefault: fp,graph,0.5,caller,function"; 1242a2c10d39SNamhyung Kim 1243b0ad8ea6SArnaldo Carvalho de Melo int cmd_top(int argc, const char **argv) 12441758af10SArnaldo Carvalho de Melo { 124516ad2ffbSNamhyung Kim char errbuf[BUFSIZ]; 12461758af10SArnaldo Carvalho de Melo struct perf_top top = { 12471758af10SArnaldo Carvalho de Melo .count_filter = 5, 12481758af10SArnaldo Carvalho de Melo .delay_secs = 2, 12492376c67aSArnaldo Carvalho de Melo .record_opts = { 12502376c67aSArnaldo Carvalho de Melo .mmap_pages = UINT_MAX, 12512376c67aSArnaldo Carvalho de Melo .user_freq = UINT_MAX, 12522376c67aSArnaldo Carvalho de Melo .user_interval = ULLONG_MAX, 1253447a6013SArnaldo Carvalho de Melo .freq = 4000, /* 4 KHz */ 1254d1cb9fceSNamhyung Kim .target = { 1255d1cb9fceSNamhyung Kim .uses_mmap = true, 1256d1cb9fceSNamhyung Kim }, 12579d9cad76SKan Liang .proc_map_timeout = 500, 1258ebebbf08SKan Liang .overwrite = 1, 12592376c67aSArnaldo Carvalho de Melo }, 1260029c75e5SArnaldo Carvalho de Melo .max_stack = sysctl__max_stack(), 1261982d410bSArnaldo Carvalho de Melo .annotation_opts = annotation__default_options, 12620c6b4994SKan Liang .nr_threads_synthesize = UINT_MAX, 12631758af10SArnaldo Carvalho de Melo }; 1264b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top.record_opts; 1265602ad878SArnaldo Carvalho de Melo struct target *target = &opts->target; 12661758af10SArnaldo Carvalho de Melo const struct option options[] = { 12678c3e10ebSArnaldo Carvalho de Melo OPT_CALLBACK('e', "event", &top.evlist, "event", 126886470930SIngo Molnar "event selector. use 'perf list' to list available events", 1269f120f9d5SJiri Olsa parse_events_option), 12702376c67aSArnaldo Carvalho de Melo OPT_U64('c', "count", &opts->user_interval, "event period to sample"), 12712376c67aSArnaldo Carvalho de Melo OPT_STRING('p', "pid", &target->pid, "pid", 1272d6d901c2SZhang, Yanmin "profile events on existing process id"), 12732376c67aSArnaldo Carvalho de Melo OPT_STRING('t', "tid", &target->tid, "tid", 1274d6d901c2SZhang, Yanmin "profile events on existing thread id"), 12752376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('a', "all-cpus", &target->system_wide, 127686470930SIngo Molnar "system-wide collection from all CPUs"), 12772376c67aSArnaldo Carvalho de Melo OPT_STRING('C', "cpu", &target->cpu_list, "cpu", 1278c45c6ea2SStephane Eranian "list of cpus to monitor"), 1279b32d133aSArnaldo Carvalho de Melo OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1280b32d133aSArnaldo Carvalho de Melo "file", "vmlinux pathname"), 1281fc2be696SWilly Tarreau OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, 1282fc2be696SWilly Tarreau "don't load vmlinux even if found"), 12838c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, 12848ffcda17SArnaldo Carvalho de Melo "hide kernel symbols"), 1285994a1f78SJiri Olsa OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", 1286994a1f78SJiri Olsa "number of mmap data pages", 1287994a1f78SJiri Olsa perf_evlist__parse_mmap_pages), 12881758af10SArnaldo Carvalho de Melo OPT_INTEGER('r', "realtime", &top.realtime_prio, 128986470930SIngo Molnar "collect data with this RT SCHED_FIFO priority"), 12908c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('d', "delay", &top.delay_secs, 129186470930SIngo Molnar "number of seconds to delay between refreshes"), 12921758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, 129386470930SIngo Molnar "dump the symbol table used for profiling"), 12948c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('f', "count-filter", &top.count_filter, 129586470930SIngo Molnar "only display functions with more events than this"), 1296bf80669eSDavid Ahern OPT_BOOLEAN(0, "group", &opts->group, 129786470930SIngo Molnar "put the counters into a counter group"), 12982376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, 12992376c67aSArnaldo Carvalho de Melo "child tasks do not inherit counters"), 13001758af10SArnaldo Carvalho de Melo OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", 13016cff0e8dSKirill Smelkov "symbol to annotate"), 13022376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), 13037831bf23SArnaldo Carvalho de Melo OPT_CALLBACK('F', "freq", &top.record_opts, "freq or 'max'", 13047831bf23SArnaldo Carvalho de Melo "profile at this frequency", 13057831bf23SArnaldo Carvalho de Melo record__parse_freq), 13068c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('E', "entries", &top.print_entries, 130786470930SIngo Molnar "display this many functions"), 13088c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, 13098ffcda17SArnaldo Carvalho de Melo "hide user symbols"), 13101758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), 13111758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), 1312c0555642SIan Munsie OPT_INCR('v', "verbose", &verbose, 13133da297a6SIngo Molnar "be more verbose (show counter open errors, etc)"), 1314ab81f3fdSArnaldo Carvalho de Melo OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 1315a2ce067eSNamhyung Kim "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." 1316a2ce067eSNamhyung Kim " Please refer the man page for the complete list."), 13176fe8c26dSNamhyung Kim OPT_STRING(0, "fields", &field_order, "key[,keys...]", 13186fe8c26dSNamhyung Kim "output field(s): overhead, period, sample plus all of sort keys"), 1319ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 1320ab81f3fdSArnaldo Carvalho de Melo "Show a column with the number of samples"), 13212ddd5c04SArnaldo Carvalho de Melo OPT_CALLBACK_NOOPT('g', NULL, &callchain_param, 1322a2c10d39SNamhyung Kim NULL, "enables call-graph recording and display", 1323ae779a63SJiri Olsa &callchain_opt), 13242ddd5c04SArnaldo Carvalho de Melo OPT_CALLBACK(0, "call-graph", &callchain_param, 132576a26549SNamhyung Kim "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]", 1326a2c10d39SNamhyung Kim top_callchain_help, &parse_callchain_opt), 13271432ec34SNamhyung Kim OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, 13281432ec34SNamhyung Kim "Accumulate callchains of children and show total overhead as well"), 13295dbb6e81SWaiman Long OPT_INTEGER(0, "max-stack", &top.max_stack, 13305dbb6e81SWaiman Long "Set the maximum stack depth when parsing the callchain. " 13314cb93446SArnaldo Carvalho de Melo "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), 1332b21484f1SGreg Price OPT_CALLBACK(0, "ignore-callees", NULL, "regex", 1333b21484f1SGreg Price "ignore callees of these functions in call graphs", 1334b21484f1SGreg Price report_parse_ignore_callees_opt), 1335ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 1336ab81f3fdSArnaldo Carvalho de Melo "Show a column with the sum of periods"), 1337ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 1338ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these dsos"), 1339ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1340ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these comms"), 1341ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1342ab81f3fdSArnaldo Carvalho de Melo "only consider these symbols"), 134364c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, 134464c6f0c7SArnaldo Carvalho de Melo "Interleave source code with assembly code (default)"), 134564c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, 134664c6f0c7SArnaldo Carvalho de Melo "Display raw encoding of assembly instructions (default)"), 1347763122adSAvi Kivity OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, 1348763122adSAvi Kivity "Enable kernel symbol demangling"), 13490d3942dbSSukadev Bhattiprolu OPT_STRING(0, "objdump", &objdump_path, "path", 13500d3942dbSSukadev Bhattiprolu "objdump binary to use for disassembly and annotations"), 135164c6f0c7SArnaldo Carvalho de Melo OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", 135264c6f0c7SArnaldo Carvalho de Melo "Specify disassembler style (e.g. -M intel for intel syntax)"), 13532376c67aSArnaldo Carvalho de Melo OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), 1354fa5df943SNamhyung Kim OPT_CALLBACK(0, "percent-limit", &top, "percent", 1355fa5df943SNamhyung Kim "Don't show entries under that percent", parse_percent_limit), 135633db4568SNamhyung Kim OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", 135733db4568SNamhyung Kim "How to display percentage of filtered entries", parse_filter_percentage), 1358cf59002fSNamhyung Kim OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, 1359cf59002fSNamhyung Kim "width[,width...]", 1360cf59002fSNamhyung Kim "don't try to adjust column width, use these fixed values"), 13619d9cad76SKan Liang OPT_UINTEGER(0, "proc-map-timeout", &opts->proc_map_timeout, 13629d9cad76SKan Liang "per thread proc mmap processing timeout in ms"), 1363a18b027eSAndi Kleen OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack, 1364a18b027eSAndi Kleen "branch any", "sample any taken branches", 1365a18b027eSAndi Kleen parse_branch_stack), 1366a18b027eSAndi Kleen OPT_CALLBACK('j', "branch-filter", &opts->branch_stack, 1367a18b027eSAndi Kleen "branch filter mask", "branch stack filter modes", 1368a18b027eSAndi Kleen parse_branch_stack), 1369053a3989SNamhyung Kim OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, 1370053a3989SNamhyung Kim "Show raw trace event output (do not use print fmt or plugins)"), 1371c92fcfdeSNamhyung Kim OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy, 1372c92fcfdeSNamhyung Kim "Show entries in a hierarchy"), 1373868a8329SKrister Johansen OPT_BOOLEAN(0, "force", &symbol_conf.force, "don't complain, do it"), 13740c6b4994SKan Liang OPT_UINTEGER(0, "num-thread-synthesize", &top.nr_threads_synthesize, 13750c6b4994SKan Liang "number of thread to run event synthesize"), 137686470930SIngo Molnar OPT_END() 137786470930SIngo Molnar }; 1378be772842SArnaldo Carvalho de Melo const char * const top_usage[] = { 1379be772842SArnaldo Carvalho de Melo "perf top [<options>]", 1380be772842SArnaldo Carvalho de Melo NULL 1381be772842SArnaldo Carvalho de Melo }; 1382a635fc51SArnaldo Carvalho de Melo int status = hists__init(); 1383a635fc51SArnaldo Carvalho de Melo 1384a635fc51SArnaldo Carvalho de Melo if (status < 0) 1385a635fc51SArnaldo Carvalho de Melo return status; 138686470930SIngo Molnar 1387982d410bSArnaldo Carvalho de Melo top.annotation_opts.min_pcnt = 5; 1388982d410bSArnaldo Carvalho de Melo top.annotation_opts.context = 4; 1389982d410bSArnaldo Carvalho de Melo 1390334fe7a3SNamhyung Kim top.evlist = perf_evlist__new(); 13918c3e10ebSArnaldo Carvalho de Melo if (top.evlist == NULL) 1392361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1393361c99a6SArnaldo Carvalho de Melo 1394ecc4c561SArnaldo Carvalho de Melo status = perf_config(perf_top_config, &top); 1395ecc4c561SArnaldo Carvalho de Melo if (status) 1396ecc4c561SArnaldo Carvalho de Melo return status; 1397eb853e80SJiri Olsa 139886470930SIngo Molnar argc = parse_options(argc, argv, options, top_usage, 0); 139986470930SIngo Molnar if (argc) 140086470930SIngo Molnar usage_with_options(top_usage, options); 140186470930SIngo Molnar 140254f8f403SNamhyung Kim if (!top.evlist->nr_entries && 140354f8f403SNamhyung Kim perf_evlist__add_default(top.evlist) < 0) { 140454f8f403SNamhyung Kim pr_err("Not enough memory for event selector list\n"); 140554f8f403SNamhyung Kim goto out_delete_evlist; 140654f8f403SNamhyung Kim } 140754f8f403SNamhyung Kim 1408c92fcfdeSNamhyung Kim if (symbol_conf.report_hierarchy) { 1409c92fcfdeSNamhyung Kim /* disable incompatible options */ 1410c92fcfdeSNamhyung Kim symbol_conf.event_group = false; 1411c92fcfdeSNamhyung Kim symbol_conf.cumulate_callchain = false; 1412c92fcfdeSNamhyung Kim 1413c92fcfdeSNamhyung Kim if (field_order) { 1414c92fcfdeSNamhyung Kim pr_err("Error: --hierarchy and --fields options cannot be used together\n"); 1415c92fcfdeSNamhyung Kim parse_options_usage(top_usage, options, "fields", 0); 1416c92fcfdeSNamhyung Kim parse_options_usage(NULL, options, "hierarchy", 0); 1417c92fcfdeSNamhyung Kim goto out_delete_evlist; 1418c92fcfdeSNamhyung Kim } 1419c92fcfdeSNamhyung Kim } 1420c92fcfdeSNamhyung Kim 1421512ae1bdSNamhyung Kim sort__mode = SORT_MODE__TOP; 14223a5714f8SNamhyung Kim /* display thread wants entries to be collapsed in a different tree */ 142352225036SJiri Olsa perf_hpp_list.need_collapse = 1; 14243a5714f8SNamhyung Kim 14253ee60c3bSArnaldo Carvalho de Melo if (top.use_stdio) 14263ee60c3bSArnaldo Carvalho de Melo use_browser = 0; 14273ee60c3bSArnaldo Carvalho de Melo else if (top.use_tui) 14283ee60c3bSArnaldo Carvalho de Melo use_browser = 1; 14293ee60c3bSArnaldo Carvalho de Melo 14303ee60c3bSArnaldo Carvalho de Melo setup_browser(false); 14313ee60c3bSArnaldo Carvalho de Melo 143240184c46SNamhyung Kim if (setup_sorting(top.evlist) < 0) { 14336fe8c26dSNamhyung Kim if (sort_order) 14346fe8c26dSNamhyung Kim parse_options_usage(top_usage, options, "s", 1); 14356fe8c26dSNamhyung Kim if (field_order) 14366fe8c26dSNamhyung Kim parse_options_usage(sort_order ? NULL : top_usage, 14376fe8c26dSNamhyung Kim options, "fields", 0); 14386fe8c26dSNamhyung Kim goto out_delete_evlist; 14396fe8c26dSNamhyung Kim } 144022af969eSNamhyung Kim 1441602ad878SArnaldo Carvalho de Melo status = target__validate(target); 144216ad2ffbSNamhyung Kim if (status) { 1443602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1444ea432a8bSIngo Molnar ui__warning("%s\n", errbuf); 144516ad2ffbSNamhyung Kim } 14464bd0f2d2SNamhyung Kim 1447602ad878SArnaldo Carvalho de Melo status = target__parse_uid(target); 144816ad2ffbSNamhyung Kim if (status) { 144916ad2ffbSNamhyung Kim int saved_errno = errno; 145016ad2ffbSNamhyung Kim 1451602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1452ea432a8bSIngo Molnar ui__error("%s\n", errbuf); 145316ad2ffbSNamhyung Kim 145416ad2ffbSNamhyung Kim status = -saved_errno; 14550d37aa34SArnaldo Carvalho de Melo goto out_delete_evlist; 145616ad2ffbSNamhyung Kim } 14570d37aa34SArnaldo Carvalho de Melo 1458602ad878SArnaldo Carvalho de Melo if (target__none(target)) 14592376c67aSArnaldo Carvalho de Melo target->system_wide = true; 146010b47d54SArnaldo Carvalho de Melo 1461f8a5c0b2SArnaldo Carvalho de Melo if (perf_evlist__create_maps(top.evlist, target) < 0) { 1462f8a5c0b2SArnaldo Carvalho de Melo ui__error("Couldn't create thread/CPU maps: %s\n", 1463c8b5f2c9SArnaldo Carvalho de Melo errno == ENOENT ? "No such process" : str_error_r(errno, errbuf, sizeof(errbuf))); 1464f8a5c0b2SArnaldo Carvalho de Melo goto out_delete_evlist; 1465f8a5c0b2SArnaldo Carvalho de Melo } 14667e2ed097SArnaldo Carvalho de Melo 14678c3e10ebSArnaldo Carvalho de Melo if (top.delay_secs < 1) 14688c3e10ebSArnaldo Carvalho de Melo top.delay_secs = 1; 146986470930SIngo Molnar 1470b4006796SArnaldo Carvalho de Melo if (record_opts__config(opts)) { 14712376c67aSArnaldo Carvalho de Melo status = -EINVAL; 147203ad9747SArnaldo Carvalho de Melo goto out_delete_evlist; 147369aad6f1SArnaldo Carvalho de Melo } 147469aad6f1SArnaldo Carvalho de Melo 14750c21f736SArnaldo Carvalho de Melo top.sym_evsel = perf_evlist__first(top.evlist); 1476cc841580SArnaldo Carvalho de Melo 1477e3815264SArnaldo Carvalho de Melo if (!callchain_param.enabled) { 14781432ec34SNamhyung Kim symbol_conf.cumulate_callchain = false; 14791432ec34SNamhyung Kim perf_hpp__cancel_cumulate(); 14801432ec34SNamhyung Kim } 14811432ec34SNamhyung Kim 1482792aeafaSNamhyung Kim if (symbol_conf.cumulate_callchain && !callchain_param.order_set) 1483792aeafaSNamhyung Kim callchain_param.order = ORDER_CALLER; 1484792aeafaSNamhyung Kim 1485b01141f4SArnaldo Carvalho de Melo status = symbol__annotation_init(); 1486b01141f4SArnaldo Carvalho de Melo if (status < 0) 1487b01141f4SArnaldo Carvalho de Melo goto out_delete_evlist; 148869aad6f1SArnaldo Carvalho de Melo 14897f0b6fdeSArnaldo Carvalho de Melo annotation_config__init(); 14907f0b6fdeSArnaldo Carvalho de Melo 149169aad6f1SArnaldo Carvalho de Melo symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); 14920a7e6d1bSNamhyung Kim if (symbol__init(NULL) < 0) 149369aad6f1SArnaldo Carvalho de Melo return -1; 149469aad6f1SArnaldo Carvalho de Melo 149508e71542SNamhyung Kim sort__setup_elide(stdout); 1496ab81f3fdSArnaldo Carvalho de Melo 14971758af10SArnaldo Carvalho de Melo get_term_dimensions(&top.winsize); 14988c3e10ebSArnaldo Carvalho de Melo if (top.print_entries == 0) { 14991758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(&top); 1500244a1086SJiri Olsa signal(SIGWINCH, winch_sig); 15013b6ed988SArnaldo Carvalho de Melo } 15023b6ed988SArnaldo Carvalho de Melo 15031758af10SArnaldo Carvalho de Melo status = __cmd_top(&top); 1504806fb630SArnaldo Carvalho de Melo 15050d37aa34SArnaldo Carvalho de Melo out_delete_evlist: 15068c3e10ebSArnaldo Carvalho de Melo perf_evlist__delete(top.evlist); 150769aad6f1SArnaldo Carvalho de Melo 150869aad6f1SArnaldo Carvalho de Melo return status; 150986470930SIngo Molnar } 1510