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" 25c0443df1SArnaldo Carvalho de Melo #include "util/cache.h" 2686470930SIngo Molnar #include "util/color.h" 27361c99a6SArnaldo Carvalho de Melo #include "util/evlist.h" 2869aad6f1SArnaldo Carvalho de Melo #include "util/evsel.h" 29b0a7d1a0SArnaldo Carvalho de Melo #include "util/machine.h" 30b3165f41SArnaldo Carvalho de Melo #include "util/session.h" 31b3165f41SArnaldo Carvalho de Melo #include "util/symbol.h" 32439d473bSArnaldo Carvalho de Melo #include "util/thread.h" 33fd78260bSArnaldo Carvalho de Melo #include "util/thread_map.h" 348c3e10ebSArnaldo Carvalho de Melo #include "util/top.h" 3586470930SIngo Molnar #include "util/util.h" 3643cbcd8aSArnaldo Carvalho de Melo #include <linux/rbtree.h> 3786470930SIngo Molnar #include "util/parse-options.h" 3886470930SIngo Molnar #include "util/parse-events.h" 39a12b51c4SPaul Mackerras #include "util/cpumap.h" 4069aad6f1SArnaldo Carvalho de Melo #include "util/xyarray.h" 41ab81f3fdSArnaldo Carvalho de Melo #include "util/sort.h" 426b118e92SDavid Ahern #include "util/intlist.h" 4386470930SIngo Molnar 448f28827aSFrederic Weisbecker #include "util/debug.h" 458f28827aSFrederic Weisbecker 4686470930SIngo Molnar #include <assert.h> 4731d68e7bSArnaldo Carvalho de Melo #include <elf.h> 4886470930SIngo Molnar #include <fcntl.h> 4986470930SIngo Molnar 5086470930SIngo Molnar #include <stdio.h> 51923c42c1SMike Galbraith #include <termios.h> 52923c42c1SMike Galbraith #include <unistd.h> 539486aa38SArnaldo Carvalho de Melo #include <inttypes.h> 5486470930SIngo Molnar 5586470930SIngo Molnar #include <errno.h> 5686470930SIngo Molnar #include <time.h> 5786470930SIngo Molnar #include <sched.h> 5886470930SIngo Molnar 5986470930SIngo Molnar #include <sys/syscall.h> 6086470930SIngo Molnar #include <sys/ioctl.h> 6186470930SIngo Molnar #include <sys/poll.h> 6286470930SIngo Molnar #include <sys/prctl.h> 6386470930SIngo Molnar #include <sys/wait.h> 6486470930SIngo Molnar #include <sys/uio.h> 6531d68e7bSArnaldo Carvalho de Melo #include <sys/utsname.h> 6686470930SIngo Molnar #include <sys/mman.h> 6786470930SIngo Molnar 6886470930SIngo Molnar #include <linux/unistd.h> 6986470930SIngo Molnar #include <linux/types.h> 7086470930SIngo Molnar 7111859e82SArnaldo Carvalho de Melo static volatile int done; 7211859e82SArnaldo Carvalho de Melo 731758af10SArnaldo Carvalho de Melo static void perf_top__update_print_entries(struct perf_top *top) 743b6ed988SArnaldo Carvalho de Melo { 751758af10SArnaldo Carvalho de Melo if (top->print_entries > 9) 761758af10SArnaldo Carvalho de Melo top->print_entries -= 9; 773b6ed988SArnaldo Carvalho de Melo } 783b6ed988SArnaldo Carvalho de Melo 791d037ca1SIrina Tirdea static void perf_top__sig_winch(int sig __maybe_unused, 801d037ca1SIrina Tirdea siginfo_t *info __maybe_unused, void *arg) 813b6ed988SArnaldo Carvalho de Melo { 821758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 831758af10SArnaldo Carvalho de Melo 841758af10SArnaldo Carvalho de Melo get_term_dimensions(&top->winsize); 85509605dbSStephane Eranian if (!top->print_entries 86509605dbSStephane Eranian || (top->print_entries+4) > top->winsize.ws_row) { 87509605dbSStephane Eranian top->print_entries = top->winsize.ws_row; 88509605dbSStephane Eranian } else { 89509605dbSStephane Eranian top->print_entries += 4; 90509605dbSStephane Eranian top->winsize.ws_row = top->print_entries; 91509605dbSStephane Eranian } 921758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(top); 933b6ed988SArnaldo Carvalho de Melo } 943b6ed988SArnaldo Carvalho de Melo 951758af10SArnaldo Carvalho de Melo static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) 96923c42c1SMike Galbraith { 97923c42c1SMike Galbraith struct symbol *sym; 98ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 99439d473bSArnaldo Carvalho de Melo struct map *map; 10036532461SArnaldo Carvalho de Melo int err = -1; 101923c42c1SMike Galbraith 102ab81f3fdSArnaldo Carvalho de Melo if (!he || !he->ms.sym) 103b0a9ab62SArnaldo Carvalho de Melo return -1; 104b0a9ab62SArnaldo Carvalho de Melo 105ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 106ab81f3fdSArnaldo Carvalho de Melo map = he->ms.map; 107b0a9ab62SArnaldo Carvalho de Melo 108b0a9ab62SArnaldo Carvalho de Melo /* 109b0a9ab62SArnaldo Carvalho de Melo * We can't annotate with just /proc/kallsyms 110b0a9ab62SArnaldo Carvalho de Melo */ 11144f24cb3SJiri Olsa if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS) { 112ce6f4fabSArnaldo Carvalho de Melo pr_err("Can't annotate %s: No vmlinux file was found in the " 113ce6f4fabSArnaldo Carvalho de Melo "path\n", sym->name); 114ce6f4fabSArnaldo Carvalho de Melo sleep(1); 115b0a9ab62SArnaldo Carvalho de Melo return -1; 116b269876cSArnaldo Carvalho de Melo } 117b269876cSArnaldo Carvalho de Melo 118ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 119ce6f4fabSArnaldo Carvalho de Melo if (notes->src != NULL) { 120ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 121923c42c1SMike Galbraith goto out_assign; 122923c42c1SMike Galbraith } 123923c42c1SMike Galbraith 124ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 125923c42c1SMike Galbraith 126d04b35f8SArnaldo Carvalho de Melo if (symbol__alloc_hist(sym) < 0) { 127c97cf422SArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 12836532461SArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 12936532461SArnaldo Carvalho de Melo sym->name); 130ce6f4fabSArnaldo Carvalho de Melo sleep(1); 131c97cf422SArnaldo Carvalho de Melo return err; 132923c42c1SMike Galbraith } 13336532461SArnaldo Carvalho de Melo 134ab81f3fdSArnaldo Carvalho de Melo err = symbol__annotate(sym, map, 0); 13536532461SArnaldo Carvalho de Melo if (err == 0) { 136923c42c1SMike Galbraith out_assign: 1371758af10SArnaldo Carvalho de Melo top->sym_filter_entry = he; 13836532461SArnaldo Carvalho de Melo } 139c97cf422SArnaldo Carvalho de Melo 140ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 14136532461SArnaldo Carvalho de Melo return err; 142923c42c1SMike Galbraith } 143923c42c1SMike Galbraith 144ab81f3fdSArnaldo Carvalho de Melo static void __zero_source_counters(struct hist_entry *he) 145923c42c1SMike Galbraith { 146ab81f3fdSArnaldo Carvalho de Melo struct symbol *sym = he->ms.sym; 14736532461SArnaldo Carvalho de Melo symbol__annotate_zero_histograms(sym); 148923c42c1SMike Galbraith } 149923c42c1SMike Galbraith 15031d68e7bSArnaldo Carvalho de Melo static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) 15131d68e7bSArnaldo Carvalho de Melo { 15231d68e7bSArnaldo Carvalho de Melo struct utsname uts; 15331d68e7bSArnaldo Carvalho de Melo int err = uname(&uts); 15431d68e7bSArnaldo Carvalho de Melo 15531d68e7bSArnaldo Carvalho de Melo ui__warning("Out of bounds address found:\n\n" 15631d68e7bSArnaldo Carvalho de Melo "Addr: %" PRIx64 "\n" 15731d68e7bSArnaldo Carvalho de Melo "DSO: %s %c\n" 15831d68e7bSArnaldo Carvalho de Melo "Map: %" PRIx64 "-%" PRIx64 "\n" 15931d68e7bSArnaldo Carvalho de Melo "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" 16031d68e7bSArnaldo Carvalho de Melo "Arch: %s\n" 16131d68e7bSArnaldo Carvalho de Melo "Kernel: %s\n" 16231d68e7bSArnaldo Carvalho de Melo "Tools: %s\n\n" 16331d68e7bSArnaldo Carvalho de Melo "Not all samples will be on the annotation output.\n\n" 16431d68e7bSArnaldo Carvalho de Melo "Please report to linux-kernel@vger.kernel.org\n", 16531d68e7bSArnaldo Carvalho de Melo ip, map->dso->long_name, dso__symtab_origin(map->dso), 16631d68e7bSArnaldo Carvalho de Melo map->start, map->end, sym->start, sym->end, 16731d68e7bSArnaldo Carvalho de Melo sym->binding == STB_GLOBAL ? 'g' : 16831d68e7bSArnaldo Carvalho de Melo sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, 16931d68e7bSArnaldo Carvalho de Melo err ? "[unknown]" : uts.machine, 17031d68e7bSArnaldo Carvalho de Melo err ? "[unknown]" : uts.release, perf_version_string); 17131d68e7bSArnaldo Carvalho de Melo if (use_browser <= 0) 17231d68e7bSArnaldo Carvalho de Melo sleep(5); 17331d68e7bSArnaldo Carvalho de Melo 17431d68e7bSArnaldo Carvalho de Melo map->erange_warned = true; 17531d68e7bSArnaldo Carvalho de Melo } 17631d68e7bSArnaldo Carvalho de Melo 1771758af10SArnaldo Carvalho de Melo static void perf_top__record_precise_ip(struct perf_top *top, 1781758af10SArnaldo Carvalho de Melo struct hist_entry *he, 1791758af10SArnaldo Carvalho de Melo int counter, u64 ip) 180923c42c1SMike Galbraith { 181ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 182ce6f4fabSArnaldo Carvalho de Melo struct symbol *sym; 18331d68e7bSArnaldo Carvalho de Melo int err; 184ce6f4fabSArnaldo Carvalho de Melo 185ab81f3fdSArnaldo Carvalho de Melo if (he == NULL || he->ms.sym == NULL || 1861758af10SArnaldo Carvalho de Melo ((top->sym_filter_entry == NULL || 1871758af10SArnaldo Carvalho de Melo top->sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1)) 188923c42c1SMike Galbraith return; 189923c42c1SMike Galbraith 190ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 191ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 192ce6f4fabSArnaldo Carvalho de Melo 193ce6f4fabSArnaldo Carvalho de Melo if (pthread_mutex_trylock(¬es->lock)) 194923c42c1SMike Galbraith return; 195923c42c1SMike Galbraith 196d04b35f8SArnaldo Carvalho de Melo if (notes->src == NULL && symbol__alloc_hist(sym) < 0) { 197ab81f3fdSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 198ab81f3fdSArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 199ab81f3fdSArnaldo Carvalho de Melo sym->name); 200ab81f3fdSArnaldo Carvalho de Melo sleep(1); 201ab81f3fdSArnaldo Carvalho de Melo return; 202ab81f3fdSArnaldo Carvalho de Melo } 203ab81f3fdSArnaldo Carvalho de Melo 204ab81f3fdSArnaldo Carvalho de Melo ip = he->ms.map->map_ip(he->ms.map, ip); 20531d68e7bSArnaldo Carvalho de Melo err = symbol__inc_addr_samples(sym, he->ms.map, counter, ip); 206923c42c1SMike Galbraith 207ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 20831d68e7bSArnaldo Carvalho de Melo 20931d68e7bSArnaldo Carvalho de Melo if (err == -ERANGE && !he->ms.map->erange_warned) 21031d68e7bSArnaldo Carvalho de Melo ui__warn_map_erange(he->ms.map, sym, ip); 211923c42c1SMike Galbraith } 212923c42c1SMike Galbraith 2131758af10SArnaldo Carvalho de Melo static void perf_top__show_details(struct perf_top *top) 214923c42c1SMike Galbraith { 2151758af10SArnaldo Carvalho de Melo struct hist_entry *he = top->sym_filter_entry; 216ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 217923c42c1SMike Galbraith struct symbol *symbol; 21836532461SArnaldo Carvalho de Melo int more; 219923c42c1SMike Galbraith 220ab81f3fdSArnaldo Carvalho de Melo if (!he) 221923c42c1SMike Galbraith return; 222923c42c1SMike Galbraith 223ab81f3fdSArnaldo Carvalho de Melo symbol = he->ms.sym; 224ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(symbol); 225ce6f4fabSArnaldo Carvalho de Melo 226ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 227ce6f4fabSArnaldo Carvalho de Melo 228ce6f4fabSArnaldo Carvalho de Melo if (notes->src == NULL) 229ce6f4fabSArnaldo Carvalho de Melo goto out_unlock; 230923c42c1SMike Galbraith 2317289f83cSArnaldo Carvalho de Melo printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); 2321758af10SArnaldo Carvalho de Melo printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); 233923c42c1SMike Galbraith 234db8fd07aSNamhyung Kim more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, 2351758af10SArnaldo Carvalho de Melo 0, top->sym_pcnt_filter, top->print_entries, 4); 2361758af10SArnaldo Carvalho de Melo if (top->zero) 2371758af10SArnaldo Carvalho de Melo symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); 23836532461SArnaldo Carvalho de Melo else 2391758af10SArnaldo Carvalho de Melo symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); 24036532461SArnaldo Carvalho de Melo if (more != 0) 241923c42c1SMike Galbraith printf("%d lines not displayed, maybe increase display entries [e]\n", more); 242ce6f4fabSArnaldo Carvalho de Melo out_unlock: 243ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 244923c42c1SMike Galbraith } 24586470930SIngo Molnar 24686470930SIngo Molnar static const char CONSOLE_CLEAR[] = "[H[2J"; 24786470930SIngo Molnar 248743eb868SArnaldo Carvalho de Melo static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel, 249ab81f3fdSArnaldo Carvalho de Melo struct addr_location *al, 250743eb868SArnaldo Carvalho de Melo struct perf_sample *sample) 25186470930SIngo Molnar { 252ab81f3fdSArnaldo Carvalho de Melo struct hist_entry *he; 253ab81f3fdSArnaldo Carvalho de Melo 25405484298SAndi Kleen he = __hists__add_entry(&evsel->hists, al, NULL, sample->period, 25505484298SAndi Kleen sample->weight); 256ab81f3fdSArnaldo Carvalho de Melo if (he == NULL) 257ab81f3fdSArnaldo Carvalho de Melo return NULL; 258ab81f3fdSArnaldo Carvalho de Melo 259ab81f3fdSArnaldo Carvalho de Melo hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); 260ab81f3fdSArnaldo Carvalho de Melo return he; 26186470930SIngo Molnar } 26286470930SIngo Molnar 2631758af10SArnaldo Carvalho de Melo static void perf_top__print_sym_table(struct perf_top *top) 26486470930SIngo Molnar { 2658c3e10ebSArnaldo Carvalho de Melo char bf[160]; 2668c3e10ebSArnaldo Carvalho de Melo int printed = 0; 2671758af10SArnaldo Carvalho de Melo const int win_width = top->winsize.ws_col - 1; 26886470930SIngo Molnar 26986470930SIngo Molnar puts(CONSOLE_CLEAR); 27086470930SIngo Molnar 2711758af10SArnaldo Carvalho de Melo perf_top__header_snprintf(top, bf, sizeof(bf)); 2728c3e10ebSArnaldo Carvalho de Melo printf("%s\n", bf); 27386470930SIngo Molnar 2741758af10SArnaldo Carvalho de Melo perf_top__reset_sample_counters(top); 27586470930SIngo Molnar 2761a105f74SArnaldo Carvalho de Melo printf("%-*.*s\n", win_width, win_width, graph_dotted_line); 27786470930SIngo Molnar 2781758af10SArnaldo Carvalho de Melo if (top->sym_evsel->hists.stats.nr_lost_warned != 2791758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) { 2801758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_lost_warned = 2811758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]; 2827b27509fSArnaldo Carvalho de Melo color_fprintf(stdout, PERF_COLOR_RED, 2837b27509fSArnaldo Carvalho de Melo "WARNING: LOST %d chunks, Check IO/CPU overload", 2841758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_lost_warned); 285ab81f3fdSArnaldo Carvalho de Melo ++printed; 28693fc64f1SArnaldo Carvalho de Melo } 28793fc64f1SArnaldo Carvalho de Melo 2881758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 2891758af10SArnaldo Carvalho de Melo perf_top__show_details(top); 290923c42c1SMike Galbraith return; 291923c42c1SMike Galbraith } 292923c42c1SMike Galbraith 2931758af10SArnaldo Carvalho de Melo hists__collapse_resort_threaded(&top->sym_evsel->hists); 2941758af10SArnaldo Carvalho de Melo hists__output_resort_threaded(&top->sym_evsel->hists); 2951758af10SArnaldo Carvalho de Melo hists__decay_entries_threaded(&top->sym_evsel->hists, 2961758af10SArnaldo Carvalho de Melo top->hide_user_symbols, 2971758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols); 2981758af10SArnaldo Carvalho de Melo hists__output_recalc_col_len(&top->sym_evsel->hists, 2991758af10SArnaldo Carvalho de Melo top->winsize.ws_row - 3); 3001a105f74SArnaldo Carvalho de Melo putchar('\n'); 30141724e4cSJiri Olsa hists__fprintf(&top->sym_evsel->hists, false, 3021758af10SArnaldo Carvalho de Melo top->winsize.ws_row - 4 - printed, win_width, stdout); 30386470930SIngo Molnar } 30486470930SIngo Molnar 305923c42c1SMike Galbraith static void prompt_integer(int *target, const char *msg) 306923c42c1SMike Galbraith { 307923c42c1SMike Galbraith char *buf = malloc(0), *p; 308923c42c1SMike Galbraith size_t dummy = 0; 309923c42c1SMike Galbraith int tmp; 310923c42c1SMike Galbraith 311923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 312923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 313923c42c1SMike Galbraith return; 314923c42c1SMike Galbraith 315923c42c1SMike Galbraith p = strchr(buf, '\n'); 316923c42c1SMike Galbraith if (p) 317923c42c1SMike Galbraith *p = 0; 318923c42c1SMike Galbraith 319923c42c1SMike Galbraith p = buf; 320923c42c1SMike Galbraith while(*p) { 321923c42c1SMike Galbraith if (!isdigit(*p)) 322923c42c1SMike Galbraith goto out_free; 323923c42c1SMike Galbraith p++; 324923c42c1SMike Galbraith } 325923c42c1SMike Galbraith tmp = strtoul(buf, NULL, 10); 326923c42c1SMike Galbraith *target = tmp; 327923c42c1SMike Galbraith out_free: 328923c42c1SMike Galbraith free(buf); 329923c42c1SMike Galbraith } 330923c42c1SMike Galbraith 331923c42c1SMike Galbraith static void prompt_percent(int *target, const char *msg) 332923c42c1SMike Galbraith { 333923c42c1SMike Galbraith int tmp = 0; 334923c42c1SMike Galbraith 335923c42c1SMike Galbraith prompt_integer(&tmp, msg); 336923c42c1SMike Galbraith if (tmp >= 0 && tmp <= 100) 337923c42c1SMike Galbraith *target = tmp; 338923c42c1SMike Galbraith } 339923c42c1SMike Galbraith 3401758af10SArnaldo Carvalho de Melo static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) 341923c42c1SMike Galbraith { 342923c42c1SMike Galbraith char *buf = malloc(0), *p; 3431758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; 344ab81f3fdSArnaldo Carvalho de Melo struct rb_node *next; 345923c42c1SMike Galbraith size_t dummy = 0; 346923c42c1SMike Galbraith 347923c42c1SMike Galbraith /* zero counters of active symbol */ 348923c42c1SMike Galbraith if (syme) { 349923c42c1SMike Galbraith __zero_source_counters(syme); 3501758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 351923c42c1SMike Galbraith } 352923c42c1SMike Galbraith 353923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 354923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 355923c42c1SMike Galbraith goto out_free; 356923c42c1SMike Galbraith 357923c42c1SMike Galbraith p = strchr(buf, '\n'); 358923c42c1SMike Galbraith if (p) 359923c42c1SMike Galbraith *p = 0; 360923c42c1SMike Galbraith 3611758af10SArnaldo Carvalho de Melo next = rb_first(&top->sym_evsel->hists.entries); 362ab81f3fdSArnaldo Carvalho de Melo while (next) { 363ab81f3fdSArnaldo Carvalho de Melo n = rb_entry(next, struct hist_entry, rb_node); 364ab81f3fdSArnaldo Carvalho de Melo if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { 365ab81f3fdSArnaldo Carvalho de Melo found = n; 366923c42c1SMike Galbraith break; 367923c42c1SMike Galbraith } 368ab81f3fdSArnaldo Carvalho de Melo next = rb_next(&n->rb_node); 369923c42c1SMike Galbraith } 370923c42c1SMike Galbraith 371923c42c1SMike Galbraith if (!found) { 37266aeb6d5SKirill Smelkov fprintf(stderr, "Sorry, %s is not active.\n", buf); 373923c42c1SMike Galbraith sleep(1); 374923c42c1SMike Galbraith } else 3751758af10SArnaldo Carvalho de Melo perf_top__parse_source(top, found); 376923c42c1SMike Galbraith 377923c42c1SMike Galbraith out_free: 378923c42c1SMike Galbraith free(buf); 379923c42c1SMike Galbraith } 380923c42c1SMike Galbraith 3811758af10SArnaldo Carvalho de Melo static void perf_top__print_mapped_keys(struct perf_top *top) 382923c42c1SMike Galbraith { 383091bd2e9SMike Galbraith char *name = NULL; 384091bd2e9SMike Galbraith 3851758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 3861758af10SArnaldo Carvalho de Melo struct symbol *sym = top->sym_filter_entry->ms.sym; 387091bd2e9SMike Galbraith name = sym->name; 388091bd2e9SMike Galbraith } 389091bd2e9SMike Galbraith 390091bd2e9SMike Galbraith fprintf(stdout, "\nMapped keys:\n"); 3911758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); 3921758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); 393091bd2e9SMike Galbraith 3941758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) 3957289f83cSArnaldo Carvalho de Melo fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); 396091bd2e9SMike Galbraith 3971758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); 398091bd2e9SMike Galbraith 3991758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); 400091bd2e9SMike Galbraith fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); 401091bd2e9SMike Galbraith fprintf(stdout, "\t[S] stop annotation.\n"); 402091bd2e9SMike Galbraith 4038ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4048ffcda17SArnaldo Carvalho de Melo "\t[K] hide kernel_symbols symbols. \t(%s)\n", 4051758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols ? "yes" : "no"); 4068ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4078ffcda17SArnaldo Carvalho de Melo "\t[U] hide user symbols. \t(%s)\n", 4081758af10SArnaldo Carvalho de Melo top->hide_user_symbols ? "yes" : "no"); 4091758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); 410091bd2e9SMike Galbraith fprintf(stdout, "\t[qQ] quit.\n"); 411091bd2e9SMike Galbraith } 412091bd2e9SMike Galbraith 4131758af10SArnaldo Carvalho de Melo static int perf_top__key_mapped(struct perf_top *top, int c) 414091bd2e9SMike Galbraith { 415091bd2e9SMike Galbraith switch (c) { 416091bd2e9SMike Galbraith case 'd': 417091bd2e9SMike Galbraith case 'e': 418091bd2e9SMike Galbraith case 'f': 419091bd2e9SMike Galbraith case 'z': 420091bd2e9SMike Galbraith case 'q': 421091bd2e9SMike Galbraith case 'Q': 4228ffcda17SArnaldo Carvalho de Melo case 'K': 4238ffcda17SArnaldo Carvalho de Melo case 'U': 4246cff0e8dSKirill Smelkov case 'F': 4256cff0e8dSKirill Smelkov case 's': 4266cff0e8dSKirill Smelkov case 'S': 427091bd2e9SMike Galbraith return 1; 428091bd2e9SMike Galbraith case 'E': 4291758af10SArnaldo Carvalho de Melo return top->evlist->nr_entries > 1 ? 1 : 0; 43083a0944fSIngo Molnar default: 43183a0944fSIngo Molnar break; 432091bd2e9SMike Galbraith } 433091bd2e9SMike Galbraith 434091bd2e9SMike Galbraith return 0; 435923c42c1SMike Galbraith } 436923c42c1SMike Galbraith 43711859e82SArnaldo Carvalho de Melo static bool perf_top__handle_keypress(struct perf_top *top, int c) 438923c42c1SMike Galbraith { 43911859e82SArnaldo Carvalho de Melo bool ret = true; 44011859e82SArnaldo Carvalho de Melo 4411758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) { 442091bd2e9SMike Galbraith struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 443091bd2e9SMike Galbraith struct termios tc, save; 444091bd2e9SMike Galbraith 4451758af10SArnaldo Carvalho de Melo perf_top__print_mapped_keys(top); 446091bd2e9SMike Galbraith fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); 447091bd2e9SMike Galbraith fflush(stdout); 448091bd2e9SMike Galbraith 449091bd2e9SMike Galbraith tcgetattr(0, &save); 450091bd2e9SMike Galbraith tc = save; 451091bd2e9SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 452091bd2e9SMike Galbraith tc.c_cc[VMIN] = 0; 453091bd2e9SMike Galbraith tc.c_cc[VTIME] = 0; 454091bd2e9SMike Galbraith tcsetattr(0, TCSANOW, &tc); 455091bd2e9SMike Galbraith 456091bd2e9SMike Galbraith poll(&stdin_poll, 1, -1); 457091bd2e9SMike Galbraith c = getc(stdin); 458091bd2e9SMike Galbraith 459091bd2e9SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 4601758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) 46111859e82SArnaldo Carvalho de Melo return ret; 462091bd2e9SMike Galbraith } 463091bd2e9SMike Galbraith 464923c42c1SMike Galbraith switch (c) { 465923c42c1SMike Galbraith case 'd': 4661758af10SArnaldo Carvalho de Melo prompt_integer(&top->delay_secs, "Enter display delay"); 4671758af10SArnaldo Carvalho de Melo if (top->delay_secs < 1) 4681758af10SArnaldo Carvalho de Melo top->delay_secs = 1; 469923c42c1SMike Galbraith break; 470923c42c1SMike Galbraith case 'e': 4711758af10SArnaldo Carvalho de Melo prompt_integer(&top->print_entries, "Enter display entries (lines)"); 4721758af10SArnaldo Carvalho de Melo if (top->print_entries == 0) { 4731758af10SArnaldo Carvalho de Melo struct sigaction act = { 4741758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 4751758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 4761758af10SArnaldo Carvalho de Melo }; 4771758af10SArnaldo Carvalho de Melo perf_top__sig_winch(SIGWINCH, NULL, top); 4781758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 479509605dbSStephane Eranian } else { 480509605dbSStephane Eranian perf_top__sig_winch(SIGWINCH, NULL, top); 4813b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, SIG_DFL); 482509605dbSStephane Eranian } 483923c42c1SMike Galbraith break; 484923c42c1SMike Galbraith case 'E': 4851758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) { 486ce2d17caSAkihiro Nagai /* Select 0 as the default event: */ 487ce2d17caSAkihiro Nagai int counter = 0; 488ce2d17caSAkihiro Nagai 489923c42c1SMike Galbraith fprintf(stderr, "\nAvailable events:"); 49069aad6f1SArnaldo Carvalho de Melo 4911758af10SArnaldo Carvalho de Melo list_for_each_entry(top->sym_evsel, &top->evlist->entries, node) 4927289f83cSArnaldo Carvalho de Melo fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); 493923c42c1SMike Galbraith 494ec52d976SArnaldo Carvalho de Melo prompt_integer(&counter, "Enter details event counter"); 495923c42c1SMike Galbraith 4961758af10SArnaldo Carvalho de Melo if (counter >= top->evlist->nr_entries) { 4970c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 4987289f83cSArnaldo Carvalho de Melo fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); 499923c42c1SMike Galbraith sleep(1); 50069aad6f1SArnaldo Carvalho de Melo break; 501923c42c1SMike Galbraith } 5021758af10SArnaldo Carvalho de Melo list_for_each_entry(top->sym_evsel, &top->evlist->entries, node) 5031758af10SArnaldo Carvalho de Melo if (top->sym_evsel->idx == counter) 50469aad6f1SArnaldo Carvalho de Melo break; 505ec52d976SArnaldo Carvalho de Melo } else 5060c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 507923c42c1SMike Galbraith break; 508923c42c1SMike Galbraith case 'f': 5091758af10SArnaldo Carvalho de Melo prompt_integer(&top->count_filter, "Enter display event count filter"); 510923c42c1SMike Galbraith break; 511923c42c1SMike Galbraith case 'F': 5121758af10SArnaldo Carvalho de Melo prompt_percent(&top->sym_pcnt_filter, 5131758af10SArnaldo Carvalho de Melo "Enter details display event filter (percent)"); 514923c42c1SMike Galbraith break; 5158ffcda17SArnaldo Carvalho de Melo case 'K': 5161758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols = !top->hide_kernel_symbols; 5178ffcda17SArnaldo Carvalho de Melo break; 518923c42c1SMike Galbraith case 'q': 519923c42c1SMike Galbraith case 'Q': 520923c42c1SMike Galbraith printf("exiting.\n"); 5211758af10SArnaldo Carvalho de Melo if (top->dump_symtab) 5221758af10SArnaldo Carvalho de Melo perf_session__fprintf_dsos(top->session, stderr); 52311859e82SArnaldo Carvalho de Melo ret = false; 52411859e82SArnaldo Carvalho de Melo break; 525923c42c1SMike Galbraith case 's': 5261758af10SArnaldo Carvalho de Melo perf_top__prompt_symbol(top, "Enter details symbol"); 527923c42c1SMike Galbraith break; 528923c42c1SMike Galbraith case 'S': 5291758af10SArnaldo Carvalho de Melo if (!top->sym_filter_entry) 530923c42c1SMike Galbraith break; 531923c42c1SMike Galbraith else { 5321758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry; 533923c42c1SMike Galbraith 5341758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 535923c42c1SMike Galbraith __zero_source_counters(syme); 536923c42c1SMike Galbraith } 537923c42c1SMike Galbraith break; 5388ffcda17SArnaldo Carvalho de Melo case 'U': 5391758af10SArnaldo Carvalho de Melo top->hide_user_symbols = !top->hide_user_symbols; 5408ffcda17SArnaldo Carvalho de Melo break; 541923c42c1SMike Galbraith case 'z': 5421758af10SArnaldo Carvalho de Melo top->zero = !top->zero; 543923c42c1SMike Galbraith break; 54483a0944fSIngo Molnar default: 54583a0944fSIngo Molnar break; 546923c42c1SMike Galbraith } 54711859e82SArnaldo Carvalho de Melo 54811859e82SArnaldo Carvalho de Melo return ret; 549923c42c1SMike Galbraith } 550923c42c1SMike Galbraith 551ab81f3fdSArnaldo Carvalho de Melo static void perf_top__sort_new_samples(void *arg) 552ab81f3fdSArnaldo Carvalho de Melo { 553ab81f3fdSArnaldo Carvalho de Melo struct perf_top *t = arg; 554ab81f3fdSArnaldo Carvalho de Melo perf_top__reset_sample_counters(t); 555ab81f3fdSArnaldo Carvalho de Melo 556ab81f3fdSArnaldo Carvalho de Melo if (t->evlist->selected != NULL) 557ab81f3fdSArnaldo Carvalho de Melo t->sym_evsel = t->evlist->selected; 558ab81f3fdSArnaldo Carvalho de Melo 559ab81f3fdSArnaldo Carvalho de Melo hists__collapse_resort_threaded(&t->sym_evsel->hists); 560ab81f3fdSArnaldo Carvalho de Melo hists__output_resort_threaded(&t->sym_evsel->hists); 561b079d4e9SArnaldo Carvalho de Melo hists__decay_entries_threaded(&t->sym_evsel->hists, 5621758af10SArnaldo Carvalho de Melo t->hide_user_symbols, 5631758af10SArnaldo Carvalho de Melo t->hide_kernel_symbols); 564ab81f3fdSArnaldo Carvalho de Melo } 565ab81f3fdSArnaldo Carvalho de Melo 5661758af10SArnaldo Carvalho de Melo static void *display_thread_tui(void *arg) 567c0443df1SArnaldo Carvalho de Melo { 5680d37aa34SArnaldo Carvalho de Melo struct perf_evsel *pos; 5691758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 570ab81f3fdSArnaldo Carvalho de Melo const char *help = "For a higher level overview, try: perf top --sort comm,dso"; 5719783adf7SNamhyung Kim struct hist_browser_timer hbt = { 5729783adf7SNamhyung Kim .timer = perf_top__sort_new_samples, 5739783adf7SNamhyung Kim .arg = top, 5749783adf7SNamhyung Kim .refresh = top->delay_secs, 5759783adf7SNamhyung Kim }; 576ab81f3fdSArnaldo Carvalho de Melo 5771758af10SArnaldo Carvalho de Melo perf_top__sort_new_samples(top); 5780d37aa34SArnaldo Carvalho de Melo 5790d37aa34SArnaldo Carvalho de Melo /* 5800d37aa34SArnaldo Carvalho de Melo * Initialize the uid_filter_str, in the future the TUI will allow 5810d37aa34SArnaldo Carvalho de Melo * Zooming in/out UIDs. For now juse use whatever the user passed 5820d37aa34SArnaldo Carvalho de Melo * via --uid. 5830d37aa34SArnaldo Carvalho de Melo */ 5840d37aa34SArnaldo Carvalho de Melo list_for_each_entry(pos, &top->evlist->entries, node) 5852376c67aSArnaldo Carvalho de Melo pos->hists.uid_filter_str = top->record_opts.target.uid_str; 5860d37aa34SArnaldo Carvalho de Melo 58768d80758SNamhyung Kim perf_evlist__tui_browse_hists(top->evlist, help, &hbt, 58868d80758SNamhyung Kim &top->session->header.env); 589ab81f3fdSArnaldo Carvalho de Melo 59011859e82SArnaldo Carvalho de Melo done = 1; 591c0443df1SArnaldo Carvalho de Melo return NULL; 592c0443df1SArnaldo Carvalho de Melo } 593c0443df1SArnaldo Carvalho de Melo 5941758af10SArnaldo Carvalho de Melo static void *display_thread(void *arg) 59586470930SIngo Molnar { 59686470930SIngo Molnar struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 597923c42c1SMike Galbraith struct termios tc, save; 5981758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 599923c42c1SMike Galbraith int delay_msecs, c; 60086470930SIngo Molnar 601923c42c1SMike Galbraith tcgetattr(0, &save); 602923c42c1SMike Galbraith tc = save; 603923c42c1SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 604923c42c1SMike Galbraith tc.c_cc[VMIN] = 0; 605923c42c1SMike Galbraith tc.c_cc[VTIME] = 0; 606091bd2e9SMike Galbraith 6073af6e338SArnaldo Carvalho de Melo pthread__unblock_sigwinch(); 608923c42c1SMike Galbraith repeat: 6091758af10SArnaldo Carvalho de Melo delay_msecs = top->delay_secs * 1000; 610923c42c1SMike Galbraith tcsetattr(0, TCSANOW, &tc); 611923c42c1SMike Galbraith /* trash return*/ 612923c42c1SMike Galbraith getc(stdin); 61386470930SIngo Molnar 61411859e82SArnaldo Carvalho de Melo while (!done) { 6151758af10SArnaldo Carvalho de Melo perf_top__print_sym_table(top); 6163af6e338SArnaldo Carvalho de Melo /* 6173af6e338SArnaldo Carvalho de Melo * Either timeout expired or we got an EINTR due to SIGWINCH, 6183af6e338SArnaldo Carvalho de Melo * refresh screen in both cases. 6193af6e338SArnaldo Carvalho de Melo */ 6203af6e338SArnaldo Carvalho de Melo switch (poll(&stdin_poll, 1, delay_msecs)) { 6213af6e338SArnaldo Carvalho de Melo case 0: 6223af6e338SArnaldo Carvalho de Melo continue; 6233af6e338SArnaldo Carvalho de Melo case -1: 6243af6e338SArnaldo Carvalho de Melo if (errno == EINTR) 6253af6e338SArnaldo Carvalho de Melo continue; 6263af6e338SArnaldo Carvalho de Melo /* Fall trhu */ 6273af6e338SArnaldo Carvalho de Melo default: 628923c42c1SMike Galbraith c = getc(stdin); 629923c42c1SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 630923c42c1SMike Galbraith 63111859e82SArnaldo Carvalho de Melo if (perf_top__handle_keypress(top, c)) 632923c42c1SMike Galbraith goto repeat; 63311859e82SArnaldo Carvalho de Melo done = 1; 63411859e82SArnaldo Carvalho de Melo } 63511859e82SArnaldo Carvalho de Melo } 63686470930SIngo Molnar 63786470930SIngo Molnar return NULL; 63886470930SIngo Molnar } 63986470930SIngo Molnar 6402ab52083SAnton Blanchard /* Tag samples to be skipped. */ 641f37a291cSIngo Molnar static const char *skip_symbols[] = { 6424bea8b5cSArnaldo Carvalho de Melo "intel_idle", 6432ab52083SAnton Blanchard "default_idle", 644b0e8572fSArnaldo Carvalho de Melo "native_safe_halt", 6452ab52083SAnton Blanchard "cpu_idle", 6462ab52083SAnton Blanchard "enter_idle", 6472ab52083SAnton Blanchard "exit_idle", 6482ab52083SAnton Blanchard "mwait_idle", 64959b90056SArnaldo Carvalho de Melo "mwait_idle_with_hints", 6508357275bSArnaldo Carvalho de Melo "poll_idle", 6513a3393efSAnton Blanchard "ppc64_runlatch_off", 6523a3393efSAnton Blanchard "pseries_dedicated_idle_sleep", 6532ab52083SAnton Blanchard NULL 6542ab52083SAnton Blanchard }; 6552ab52083SAnton Blanchard 6561d037ca1SIrina Tirdea static int symbol_filter(struct map *map __maybe_unused, struct symbol *sym) 65786470930SIngo Molnar { 65886470930SIngo Molnar const char *name = sym->name; 6592ab52083SAnton Blanchard int i; 66086470930SIngo Molnar 6613a3393efSAnton Blanchard /* 6623a3393efSAnton Blanchard * ppc64 uses function descriptors and appends a '.' to the 6633a3393efSAnton Blanchard * start of every instruction address. Remove it. 6643a3393efSAnton Blanchard */ 6653a3393efSAnton Blanchard if (name[0] == '.') 6663a3393efSAnton Blanchard name++; 6673a3393efSAnton Blanchard 66886470930SIngo Molnar if (!strcmp(name, "_text") || 66986470930SIngo Molnar !strcmp(name, "_etext") || 67086470930SIngo Molnar !strcmp(name, "_sinittext") || 67186470930SIngo Molnar !strncmp("init_module", name, 11) || 67286470930SIngo Molnar !strncmp("cleanup_module", name, 14) || 67386470930SIngo Molnar strstr(name, "_text_start") || 67486470930SIngo Molnar strstr(name, "_text_end")) 67586470930SIngo Molnar return 1; 67686470930SIngo Molnar 6772ab52083SAnton Blanchard for (i = 0; skip_symbols[i]; i++) { 6782ab52083SAnton Blanchard if (!strcmp(skip_symbols[i], name)) { 679171b3be9SArnaldo Carvalho de Melo sym->ignore = true; 6802ab52083SAnton Blanchard break; 6812ab52083SAnton Blanchard } 6822ab52083SAnton Blanchard } 68386470930SIngo Molnar 68486470930SIngo Molnar return 0; 68586470930SIngo Molnar } 68686470930SIngo Molnar 6871758af10SArnaldo Carvalho de Melo static void perf_event__process_sample(struct perf_tool *tool, 6881758af10SArnaldo Carvalho de Melo const union perf_event *event, 6897b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel, 6908d50e5b4SArnaldo Carvalho de Melo struct perf_sample *sample, 691743eb868SArnaldo Carvalho de Melo struct machine *machine) 69286470930SIngo Molnar { 6931758af10SArnaldo Carvalho de Melo struct perf_top *top = container_of(tool, struct perf_top, tool); 69419d4ac3cSArnaldo Carvalho de Melo struct symbol *parent = NULL; 6958115d60cSArnaldo Carvalho de Melo u64 ip = event->ip.ip; 6961ed091c4SArnaldo Carvalho de Melo struct addr_location al; 69719d4ac3cSArnaldo Carvalho de Melo int err; 6985b2bb75aSArnaldo Carvalho de Melo 69923346f21SArnaldo Carvalho de Melo if (!machine && perf_guest) { 7006b118e92SDavid Ahern static struct intlist *seen; 7016b118e92SDavid Ahern 7026b118e92SDavid Ahern if (!seen) 703ffe0fb76SArnaldo Carvalho de Melo seen = intlist__new(NULL); 7046b118e92SDavid Ahern 7056b118e92SDavid Ahern if (!intlist__has_entry(seen, event->ip.pid)) { 706a1645ce1SZhang, Yanmin pr_err("Can't find guest [%d]'s kernel information\n", 7078115d60cSArnaldo Carvalho de Melo event->ip.pid); 7086b118e92SDavid Ahern intlist__add(seen, event->ip.pid); 7096b118e92SDavid Ahern } 710a1645ce1SZhang, Yanmin return; 711a1645ce1SZhang, Yanmin } 712a1645ce1SZhang, Yanmin 7130c095715SJoerg Roedel if (!machine) { 71411859e82SArnaldo Carvalho de Melo pr_err("%u unprocessable samples recorded.\r", 71528a6b6aaSArnaldo Carvalho de Melo top->session->stats.nr_unprocessable_samples++); 7160c095715SJoerg Roedel return; 7170c095715SJoerg Roedel } 7180c095715SJoerg Roedel 7198115d60cSArnaldo Carvalho de Melo if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) 7201758af10SArnaldo Carvalho de Melo top->exact_samples++; 7211676b8a0SPeter Zijlstra 722743eb868SArnaldo Carvalho de Melo if (perf_event__preprocess_sample(event, machine, &al, sample, 72341a37e20SArnaldo Carvalho de Melo symbol_filter) < 0 || 72472b8fa17SArnaldo Carvalho de Melo al.filtered) 7251ed091c4SArnaldo Carvalho de Melo return; 72686470930SIngo Molnar 7271758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && 7285f6f5580SArnaldo Carvalho de Melo symbol_conf.kptr_restrict && 7295f6f5580SArnaldo Carvalho de Melo al.cpumode == PERF_RECORD_MISC_KERNEL) { 7305f6f5580SArnaldo Carvalho de Melo ui__warning( 7315f6f5580SArnaldo Carvalho de Melo "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" 7325f6f5580SArnaldo Carvalho de Melo "Check /proc/sys/kernel/kptr_restrict.\n\n" 7335f6f5580SArnaldo Carvalho de Melo "Kernel%s samples will not be resolved.\n", 7345f6f5580SArnaldo Carvalho de Melo !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? 7355f6f5580SArnaldo Carvalho de Melo " modules" : ""); 7365f6f5580SArnaldo Carvalho de Melo if (use_browser <= 0) 7375f6f5580SArnaldo Carvalho de Melo sleep(5); 7381758af10SArnaldo Carvalho de Melo top->kptr_restrict_warned = true; 7395f6f5580SArnaldo Carvalho de Melo } 7405f6f5580SArnaldo Carvalho de Melo 74172b8fa17SArnaldo Carvalho de Melo if (al.sym == NULL) { 742e4a338d0SArnaldo Carvalho de Melo const char *msg = "Kernel samples will not be resolved.\n"; 74372b8fa17SArnaldo Carvalho de Melo /* 74472b8fa17SArnaldo Carvalho de Melo * As we do lazy loading of symtabs we only will know if the 74572b8fa17SArnaldo Carvalho de Melo * specified vmlinux file is invalid when we actually have a 74672b8fa17SArnaldo Carvalho de Melo * hit in kernel space and then try to load it. So if we get 74772b8fa17SArnaldo Carvalho de Melo * here and there are _no_ symbols in the DSO backing the 74872b8fa17SArnaldo Carvalho de Melo * kernel map, bail out. 74972b8fa17SArnaldo Carvalho de Melo * 75072b8fa17SArnaldo Carvalho de Melo * We may never get here, for instance, if we use -K/ 75172b8fa17SArnaldo Carvalho de Melo * --hide-kernel-symbols, even if the user specifies an 75272b8fa17SArnaldo Carvalho de Melo * invalid --vmlinux ;-) 75372b8fa17SArnaldo Carvalho de Melo */ 7541758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && !top->vmlinux_warned && 755e4a338d0SArnaldo Carvalho de Melo al.map == machine->vmlinux_maps[MAP__FUNCTION] && 75672b8fa17SArnaldo Carvalho de Melo RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { 757e4a338d0SArnaldo Carvalho de Melo if (symbol_conf.vmlinux_name) { 758e4a338d0SArnaldo Carvalho de Melo ui__warning("The %s file can't be used.\n%s", 759e4a338d0SArnaldo Carvalho de Melo symbol_conf.vmlinux_name, msg); 760e4a338d0SArnaldo Carvalho de Melo } else { 761e4a338d0SArnaldo Carvalho de Melo ui__warning("A vmlinux file was not found.\n%s", 762e4a338d0SArnaldo Carvalho de Melo msg); 763e4a338d0SArnaldo Carvalho de Melo } 764e4a338d0SArnaldo Carvalho de Melo 765e4a338d0SArnaldo Carvalho de Melo if (use_browser <= 0) 766e4a338d0SArnaldo Carvalho de Melo sleep(5); 7671758af10SArnaldo Carvalho de Melo top->vmlinux_warned = true; 76872b8fa17SArnaldo Carvalho de Melo } 76972b8fa17SArnaldo Carvalho de Melo } 77072b8fa17SArnaldo Carvalho de Melo 771ab81f3fdSArnaldo Carvalho de Melo if (al.sym == NULL || !al.sym->ignore) { 772ab81f3fdSArnaldo Carvalho de Melo struct hist_entry *he; 77370db7533SArnaldo Carvalho de Melo 77419d4ac3cSArnaldo Carvalho de Melo if ((sort__has_parent || symbol_conf.use_callchain) && 77519d4ac3cSArnaldo Carvalho de Melo sample->callchain) { 77671ad0f5eSJiri Olsa err = machine__resolve_callchain(machine, evsel, 77771ad0f5eSJiri Olsa al.thread, sample, 77871ad0f5eSJiri Olsa &parent); 77971ad0f5eSJiri Olsa 78019d4ac3cSArnaldo Carvalho de Melo if (err) 78119d4ac3cSArnaldo Carvalho de Melo return; 78219d4ac3cSArnaldo Carvalho de Melo } 78319d4ac3cSArnaldo Carvalho de Melo 784743eb868SArnaldo Carvalho de Melo he = perf_evsel__add_hist_entry(evsel, &al, sample); 785ab81f3fdSArnaldo Carvalho de Melo if (he == NULL) { 786ab81f3fdSArnaldo Carvalho de Melo pr_err("Problem incrementing symbol period, skipping event\n"); 787ab81f3fdSArnaldo Carvalho de Melo return; 7885807806aSArnaldo Carvalho de Melo } 789ab81f3fdSArnaldo Carvalho de Melo 79019d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) { 79147260645SNamhyung Kim err = callchain_append(he->callchain, &callchain_cursor, 79219d4ac3cSArnaldo Carvalho de Melo sample->period); 79319d4ac3cSArnaldo Carvalho de Melo if (err) 79419d4ac3cSArnaldo Carvalho de Melo return; 79519d4ac3cSArnaldo Carvalho de Melo } 79619d4ac3cSArnaldo Carvalho de Melo 7971758af10SArnaldo Carvalho de Melo if (top->sort_has_symbols) 7981758af10SArnaldo Carvalho de Melo perf_top__record_precise_ip(top, he, evsel->idx, ip); 7995807806aSArnaldo Carvalho de Melo } 800ab81f3fdSArnaldo Carvalho de Melo 801ab81f3fdSArnaldo Carvalho de Melo return; 80286470930SIngo Molnar } 80386470930SIngo Molnar 8041758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read_idx(struct perf_top *top, int idx) 80586470930SIngo Molnar { 8068d50e5b4SArnaldo Carvalho de Melo struct perf_sample sample; 8077b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel; 8081758af10SArnaldo Carvalho de Melo struct perf_session *session = top->session; 8098115d60cSArnaldo Carvalho de Melo union perf_event *event; 810743eb868SArnaldo Carvalho de Melo struct machine *machine; 811743eb868SArnaldo Carvalho de Melo u8 origin; 8125538becaSFrederic Weisbecker int ret; 81386470930SIngo Molnar 8141758af10SArnaldo Carvalho de Melo while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { 8150807d2d8SArnaldo Carvalho de Melo ret = perf_evlist__parse_sample(top->evlist, event, &sample); 8165538becaSFrederic Weisbecker if (ret) { 8175538becaSFrederic Weisbecker pr_err("Can't parse sample, err = %d\n", ret); 8185538becaSFrederic Weisbecker continue; 8195538becaSFrederic Weisbecker } 82004391debSArnaldo Carvalho de Melo 8211758af10SArnaldo Carvalho de Melo evsel = perf_evlist__id2evsel(session->evlist, sample.id); 8227b27509fSArnaldo Carvalho de Melo assert(evsel != NULL); 8237b27509fSArnaldo Carvalho de Melo 824743eb868SArnaldo Carvalho de Melo origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 825743eb868SArnaldo Carvalho de Melo 8265b2bb75aSArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) 8271758af10SArnaldo Carvalho de Melo ++top->samples; 828743eb868SArnaldo Carvalho de Melo 829743eb868SArnaldo Carvalho de Melo switch (origin) { 830743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_USER: 8311758af10SArnaldo Carvalho de Melo ++top->us_samples; 8321758af10SArnaldo Carvalho de Melo if (top->hide_user_symbols) 833743eb868SArnaldo Carvalho de Melo continue; 83434ba5122SArnaldo Carvalho de Melo machine = &session->machines.host; 835743eb868SArnaldo Carvalho de Melo break; 836743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_KERNEL: 8371758af10SArnaldo Carvalho de Melo ++top->kernel_samples; 8381758af10SArnaldo Carvalho de Melo if (top->hide_kernel_symbols) 839743eb868SArnaldo Carvalho de Melo continue; 84034ba5122SArnaldo Carvalho de Melo machine = &session->machines.host; 841743eb868SArnaldo Carvalho de Melo break; 842743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_KERNEL: 8431758af10SArnaldo Carvalho de Melo ++top->guest_kernel_samples; 8441758af10SArnaldo Carvalho de Melo machine = perf_session__find_machine(session, event->ip.pid); 845743eb868SArnaldo Carvalho de Melo break; 846743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_USER: 8471758af10SArnaldo Carvalho de Melo ++top->guest_us_samples; 848743eb868SArnaldo Carvalho de Melo /* 849743eb868SArnaldo Carvalho de Melo * TODO: we don't process guest user from host side 850743eb868SArnaldo Carvalho de Melo * except simple counting. 851743eb868SArnaldo Carvalho de Melo */ 852743eb868SArnaldo Carvalho de Melo /* Fall thru */ 853743eb868SArnaldo Carvalho de Melo default: 854743eb868SArnaldo Carvalho de Melo continue; 855743eb868SArnaldo Carvalho de Melo } 856743eb868SArnaldo Carvalho de Melo 857743eb868SArnaldo Carvalho de Melo 8581758af10SArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) { 8591758af10SArnaldo Carvalho de Melo perf_event__process_sample(&top->tool, event, evsel, 8601758af10SArnaldo Carvalho de Melo &sample, machine); 8611758af10SArnaldo Carvalho de Melo } else if (event->header.type < PERF_RECORD_MAX) { 8627b27509fSArnaldo Carvalho de Melo hists__inc_nr_events(&evsel->hists, event->header.type); 863b0a7d1a0SArnaldo Carvalho de Melo machine__process_event(machine, event); 8647b27509fSArnaldo Carvalho de Melo } else 86528a6b6aaSArnaldo Carvalho de Melo ++session->stats.nr_unknown_events; 86686470930SIngo Molnar } 86786470930SIngo Molnar } 86886470930SIngo Molnar 8691758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read(struct perf_top *top) 8702f01190aSFrederic Weisbecker { 87170db7533SArnaldo Carvalho de Melo int i; 8722f01190aSFrederic Weisbecker 8731758af10SArnaldo Carvalho de Melo for (i = 0; i < top->evlist->nr_mmaps; i++) 8741758af10SArnaldo Carvalho de Melo perf_top__mmap_read_idx(top, i); 8752f01190aSFrederic Weisbecker } 8762f01190aSFrederic Weisbecker 87711859e82SArnaldo Carvalho de Melo static int perf_top__start_counters(struct perf_top *top) 87872cb7013SArnaldo Carvalho de Melo { 87956e52e85SArnaldo Carvalho de Melo char msg[512]; 8806a4bb04cSJiri Olsa struct perf_evsel *counter; 8811758af10SArnaldo Carvalho de Melo struct perf_evlist *evlist = top->evlist; 8822376c67aSArnaldo Carvalho de Melo struct perf_record_opts *opts = &top->record_opts; 883727ab04eSArnaldo Carvalho de Melo 8842376c67aSArnaldo Carvalho de Melo perf_evlist__config(evlist, opts); 88572cb7013SArnaldo Carvalho de Melo 88672cb7013SArnaldo Carvalho de Melo list_for_each_entry(counter, &evlist->entries, node) { 88772cb7013SArnaldo Carvalho de Melo try_again: 8881758af10SArnaldo Carvalho de Melo if (perf_evsel__open(counter, top->evlist->cpus, 8896a4bb04cSJiri Olsa top->evlist->threads) < 0) { 89056e52e85SArnaldo Carvalho de Melo if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { 89172cb7013SArnaldo Carvalho de Melo if (verbose) 892c0a54341SArnaldo Carvalho de Melo ui__warning("%s\n", msg); 89372cb7013SArnaldo Carvalho de Melo goto try_again; 89472cb7013SArnaldo Carvalho de Melo } 895c286c419SArnaldo Carvalho de Melo 89656e52e85SArnaldo Carvalho de Melo perf_evsel__open_strerror(counter, &opts->target, 89756e52e85SArnaldo Carvalho de Melo errno, msg, sizeof(msg)); 89856e52e85SArnaldo Carvalho de Melo ui__error("%s\n", msg); 899c286c419SArnaldo Carvalho de Melo goto out_err; 90072cb7013SArnaldo Carvalho de Melo } 90172cb7013SArnaldo Carvalho de Melo } 90270db7533SArnaldo Carvalho de Melo 9032376c67aSArnaldo Carvalho de Melo if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { 9043780f488SNamhyung Kim ui__error("Failed to mmap with %d (%s)\n", 905c286c419SArnaldo Carvalho de Melo errno, strerror(errno)); 906c286c419SArnaldo Carvalho de Melo goto out_err; 907c286c419SArnaldo Carvalho de Melo } 908c286c419SArnaldo Carvalho de Melo 90911859e82SArnaldo Carvalho de Melo return 0; 910c286c419SArnaldo Carvalho de Melo 911c286c419SArnaldo Carvalho de Melo out_err: 91211859e82SArnaldo Carvalho de Melo return -1; 91372cb7013SArnaldo Carvalho de Melo } 91472cb7013SArnaldo Carvalho de Melo 9151758af10SArnaldo Carvalho de Melo static int perf_top__setup_sample_type(struct perf_top *top) 91619d4ac3cSArnaldo Carvalho de Melo { 9171758af10SArnaldo Carvalho de Melo if (!top->sort_has_symbols) { 91819d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) { 9193780f488SNamhyung Kim ui__error("Selected -g but \"sym\" not present in --sort/-s."); 92019d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 92119d4ac3cSArnaldo Carvalho de Melo } 9222376c67aSArnaldo Carvalho de Melo } else if (callchain_param.mode != CHAIN_NONE) { 92319d4ac3cSArnaldo Carvalho de Melo if (callchain_register_param(&callchain_param) < 0) { 9243780f488SNamhyung Kim ui__error("Can't register callchain params.\n"); 92519d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 92619d4ac3cSArnaldo Carvalho de Melo } 92719d4ac3cSArnaldo Carvalho de Melo } 92819d4ac3cSArnaldo Carvalho de Melo 92919d4ac3cSArnaldo Carvalho de Melo return 0; 93019d4ac3cSArnaldo Carvalho de Melo } 93119d4ac3cSArnaldo Carvalho de Melo 9321758af10SArnaldo Carvalho de Melo static int __cmd_top(struct perf_top *top) 933716c69feSIngo Molnar { 9342376c67aSArnaldo Carvalho de Melo struct perf_record_opts *opts = &top->record_opts; 935716c69feSIngo Molnar pthread_t thread; 93619d4ac3cSArnaldo Carvalho de Melo int ret; 937d8f66248SArnaldo Carvalho de Melo /* 938b3165f41SArnaldo Carvalho de Melo * FIXME: perf_session__new should allow passing a O_MMAP, so that all this 939b3165f41SArnaldo Carvalho de Melo * mmap reading, etc is encapsulated in it. Use O_WRONLY for now. 940d8f66248SArnaldo Carvalho de Melo */ 9411758af10SArnaldo Carvalho de Melo top->session = perf_session__new(NULL, O_WRONLY, false, false, NULL); 9421758af10SArnaldo Carvalho de Melo if (top->session == NULL) 943b3165f41SArnaldo Carvalho de Melo return -ENOMEM; 944716c69feSIngo Molnar 9451758af10SArnaldo Carvalho de Melo ret = perf_top__setup_sample_type(top); 94619d4ac3cSArnaldo Carvalho de Melo if (ret) 94719d4ac3cSArnaldo Carvalho de Melo goto out_delete; 94819d4ac3cSArnaldo Carvalho de Melo 9492376c67aSArnaldo Carvalho de Melo if (perf_target__has_task(&opts->target)) 9501758af10SArnaldo Carvalho de Melo perf_event__synthesize_thread_map(&top->tool, top->evlist->threads, 951743eb868SArnaldo Carvalho de Melo perf_event__process, 952876650e6SArnaldo Carvalho de Melo &top->session->machines.host); 9535b2bb75aSArnaldo Carvalho de Melo else 9541758af10SArnaldo Carvalho de Melo perf_event__synthesize_threads(&top->tool, perf_event__process, 955876650e6SArnaldo Carvalho de Melo &top->session->machines.host); 95611859e82SArnaldo Carvalho de Melo 95711859e82SArnaldo Carvalho de Melo ret = perf_top__start_counters(top); 95811859e82SArnaldo Carvalho de Melo if (ret) 95911859e82SArnaldo Carvalho de Melo goto out_delete; 96011859e82SArnaldo Carvalho de Melo 9611758af10SArnaldo Carvalho de Melo top->session->evlist = top->evlist; 9627b56cce2SArnaldo Carvalho de Melo perf_session__set_id_hdr_size(top->session); 96386470930SIngo Molnar 9642376c67aSArnaldo Carvalho de Melo /* 9652376c67aSArnaldo Carvalho de Melo * When perf is starting the traced process, all the events (apart from 9662376c67aSArnaldo Carvalho de Melo * group members) have enable_on_exec=1 set, so don't spoil it by 9672376c67aSArnaldo Carvalho de Melo * prematurely enabling them. 9682376c67aSArnaldo Carvalho de Melo * 9692376c67aSArnaldo Carvalho de Melo * XXX 'top' still doesn't start workloads like record, trace, but should, 9702376c67aSArnaldo Carvalho de Melo * so leave the check here. 9712376c67aSArnaldo Carvalho de Melo */ 9722376c67aSArnaldo Carvalho de Melo if (!perf_target__none(&opts->target)) 9732376c67aSArnaldo Carvalho de Melo perf_evlist__enable(top->evlist); 9742376c67aSArnaldo Carvalho de Melo 9752f01190aSFrederic Weisbecker /* Wait for a minimal set of events before starting the snapshot */ 9761758af10SArnaldo Carvalho de Melo poll(top->evlist->pollfd, top->evlist->nr_fds, 100); 9772f01190aSFrederic Weisbecker 9781758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 9792f01190aSFrederic Weisbecker 98011859e82SArnaldo Carvalho de Melo ret = -1; 981c0443df1SArnaldo Carvalho de Melo if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : 9821758af10SArnaldo Carvalho de Melo display_thread), top)) { 9833780f488SNamhyung Kim ui__error("Could not create display thread.\n"); 98411859e82SArnaldo Carvalho de Melo goto out_delete; 98586470930SIngo Molnar } 98686470930SIngo Molnar 9871758af10SArnaldo Carvalho de Melo if (top->realtime_prio) { 98886470930SIngo Molnar struct sched_param param; 98986470930SIngo Molnar 9901758af10SArnaldo Carvalho de Melo param.sched_priority = top->realtime_prio; 99186470930SIngo Molnar if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { 9923780f488SNamhyung Kim ui__error("Could not set realtime priority.\n"); 99311859e82SArnaldo Carvalho de Melo goto out_delete; 99486470930SIngo Molnar } 99586470930SIngo Molnar } 99686470930SIngo Molnar 99711859e82SArnaldo Carvalho de Melo while (!done) { 9981758af10SArnaldo Carvalho de Melo u64 hits = top->samples; 99986470930SIngo Molnar 10001758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 100186470930SIngo Molnar 10021758af10SArnaldo Carvalho de Melo if (hits == top->samples) 10031758af10SArnaldo Carvalho de Melo ret = poll(top->evlist->pollfd, top->evlist->nr_fds, 100); 100486470930SIngo Molnar } 100586470930SIngo Molnar 100611859e82SArnaldo Carvalho de Melo ret = 0; 100719d4ac3cSArnaldo Carvalho de Melo out_delete: 10081758af10SArnaldo Carvalho de Melo perf_session__delete(top->session); 10091758af10SArnaldo Carvalho de Melo top->session = NULL; 101019d4ac3cSArnaldo Carvalho de Melo 101111859e82SArnaldo Carvalho de Melo return ret; 101219d4ac3cSArnaldo Carvalho de Melo } 101319d4ac3cSArnaldo Carvalho de Melo 101419d4ac3cSArnaldo Carvalho de Melo static int 10151758af10SArnaldo Carvalho de Melo parse_callchain_opt(const struct option *opt, const char *arg, int unset) 101619d4ac3cSArnaldo Carvalho de Melo { 101719d4ac3cSArnaldo Carvalho de Melo /* 101819d4ac3cSArnaldo Carvalho de Melo * --no-call-graph 101919d4ac3cSArnaldo Carvalho de Melo */ 10202376c67aSArnaldo Carvalho de Melo if (unset) 102119d4ac3cSArnaldo Carvalho de Melo return 0; 102219d4ac3cSArnaldo Carvalho de Melo 102319d4ac3cSArnaldo Carvalho de Melo symbol_conf.use_callchain = true; 102419d4ac3cSArnaldo Carvalho de Melo 10252376c67aSArnaldo Carvalho de Melo return record_parse_callchain_opt(opt, arg, unset); 102686470930SIngo Molnar } 102786470930SIngo Molnar 10281d037ca1SIrina Tirdea int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) 10291758af10SArnaldo Carvalho de Melo { 103016ad2ffbSNamhyung Kim int status; 103116ad2ffbSNamhyung Kim char errbuf[BUFSIZ]; 10321758af10SArnaldo Carvalho de Melo struct perf_top top = { 10331758af10SArnaldo Carvalho de Melo .count_filter = 5, 10341758af10SArnaldo Carvalho de Melo .delay_secs = 2, 10352376c67aSArnaldo Carvalho de Melo .record_opts = { 10362376c67aSArnaldo Carvalho de Melo .mmap_pages = UINT_MAX, 10372376c67aSArnaldo Carvalho de Melo .user_freq = UINT_MAX, 10382376c67aSArnaldo Carvalho de Melo .user_interval = ULLONG_MAX, 1039447a6013SArnaldo Carvalho de Melo .freq = 4000, /* 4 KHz */ 1040d1cb9fceSNamhyung Kim .target = { 1041d1cb9fceSNamhyung Kim .uses_mmap = true, 1042d1cb9fceSNamhyung Kim }, 10432376c67aSArnaldo Carvalho de Melo }, 10442376c67aSArnaldo Carvalho de Melo .sym_pcnt_filter = 5, 10451758af10SArnaldo Carvalho de Melo }; 10462376c67aSArnaldo Carvalho de Melo struct perf_record_opts *opts = &top.record_opts; 10472376c67aSArnaldo Carvalho de Melo struct perf_target *target = &opts->target; 10481758af10SArnaldo Carvalho de Melo const struct option options[] = { 10498c3e10ebSArnaldo Carvalho de Melo OPT_CALLBACK('e', "event", &top.evlist, "event", 105086470930SIngo Molnar "event selector. use 'perf list' to list available events", 1051f120f9d5SJiri Olsa parse_events_option), 10522376c67aSArnaldo Carvalho de Melo OPT_U64('c', "count", &opts->user_interval, "event period to sample"), 10532376c67aSArnaldo Carvalho de Melo OPT_STRING('p', "pid", &target->pid, "pid", 1054d6d901c2SZhang, Yanmin "profile events on existing process id"), 10552376c67aSArnaldo Carvalho de Melo OPT_STRING('t', "tid", &target->tid, "tid", 1056d6d901c2SZhang, Yanmin "profile events on existing thread id"), 10572376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('a', "all-cpus", &target->system_wide, 105886470930SIngo Molnar "system-wide collection from all CPUs"), 10592376c67aSArnaldo Carvalho de Melo OPT_STRING('C', "cpu", &target->cpu_list, "cpu", 1060c45c6ea2SStephane Eranian "list of cpus to monitor"), 1061b32d133aSArnaldo Carvalho de Melo OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1062b32d133aSArnaldo Carvalho de Melo "file", "vmlinux pathname"), 10638c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, 10648ffcda17SArnaldo Carvalho de Melo "hide kernel symbols"), 10652376c67aSArnaldo Carvalho de Melo OPT_UINTEGER('m', "mmap-pages", &opts->mmap_pages, 10662376c67aSArnaldo Carvalho de Melo "number of mmap data pages"), 10671758af10SArnaldo Carvalho de Melo OPT_INTEGER('r', "realtime", &top.realtime_prio, 106886470930SIngo Molnar "collect data with this RT SCHED_FIFO priority"), 10698c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('d', "delay", &top.delay_secs, 107086470930SIngo Molnar "number of seconds to delay between refreshes"), 10711758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, 107286470930SIngo Molnar "dump the symbol table used for profiling"), 10738c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('f', "count-filter", &top.count_filter, 107486470930SIngo Molnar "only display functions with more events than this"), 10752376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('g', "group", &opts->group, 107686470930SIngo Molnar "put the counters into a counter group"), 10772376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, 10782376c67aSArnaldo Carvalho de Melo "child tasks do not inherit counters"), 10791758af10SArnaldo Carvalho de Melo OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", 10806cff0e8dSKirill Smelkov "symbol to annotate"), 10812376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), 10822376c67aSArnaldo Carvalho de Melo OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), 10838c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('E', "entries", &top.print_entries, 108486470930SIngo Molnar "display this many functions"), 10858c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, 10868ffcda17SArnaldo Carvalho de Melo "hide user symbols"), 10871758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), 10881758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), 1089c0555642SIan Munsie OPT_INCR('v', "verbose", &verbose, 10903da297a6SIngo Molnar "be more verbose (show counter open errors, etc)"), 1091ab81f3fdSArnaldo Carvalho de Melo OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 109205484298SAndi Kleen "sort by key(s): pid, comm, dso, symbol, parent, weight, local_weight"), 1093ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 1094ab81f3fdSArnaldo Carvalho de Melo "Show a column with the number of samples"), 10952376c67aSArnaldo Carvalho de Melo OPT_CALLBACK_DEFAULT('G', "call-graph", &top.record_opts, 10962376c67aSArnaldo Carvalho de Melo "mode[,dump_size]", record_callchain_help, 10972376c67aSArnaldo Carvalho de Melo &parse_callchain_opt, "fp"), 1098ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 1099ab81f3fdSArnaldo Carvalho de Melo "Show a column with the sum of periods"), 1100ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 1101ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these dsos"), 1102ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1103ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these comms"), 1104ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1105ab81f3fdSArnaldo Carvalho de Melo "only consider these symbols"), 110664c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, 110764c6f0c7SArnaldo Carvalho de Melo "Interleave source code with assembly code (default)"), 110864c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, 110964c6f0c7SArnaldo Carvalho de Melo "Display raw encoding of assembly instructions (default)"), 111064c6f0c7SArnaldo Carvalho de Melo OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", 111164c6f0c7SArnaldo Carvalho de Melo "Specify disassembler style (e.g. -M intel for intel syntax)"), 11122376c67aSArnaldo Carvalho de Melo OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), 111386470930SIngo Molnar OPT_END() 111486470930SIngo Molnar }; 1115be772842SArnaldo Carvalho de Melo const char * const top_usage[] = { 1116be772842SArnaldo Carvalho de Melo "perf top [<options>]", 1117be772842SArnaldo Carvalho de Melo NULL 1118be772842SArnaldo Carvalho de Melo }; 111986470930SIngo Molnar 1120334fe7a3SNamhyung Kim top.evlist = perf_evlist__new(); 11218c3e10ebSArnaldo Carvalho de Melo if (top.evlist == NULL) 1122361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1123361c99a6SArnaldo Carvalho de Melo 1124ab81f3fdSArnaldo Carvalho de Melo symbol_conf.exclude_other = false; 112586470930SIngo Molnar 112686470930SIngo Molnar argc = parse_options(argc, argv, options, top_usage, 0); 112786470930SIngo Molnar if (argc) 112886470930SIngo Molnar usage_with_options(top_usage, options); 112986470930SIngo Molnar 1130ab81f3fdSArnaldo Carvalho de Melo if (sort_order == default_sort_order) 1131ab81f3fdSArnaldo Carvalho de Melo sort_order = "dso,symbol"; 1132ab81f3fdSArnaldo Carvalho de Melo 113355309985SNamhyung Kim if (setup_sorting() < 0) 113455309985SNamhyung Kim usage_with_options(top_usage, options); 1135ab81f3fdSArnaldo Carvalho de Melo 11361758af10SArnaldo Carvalho de Melo if (top.use_stdio) 1137c0443df1SArnaldo Carvalho de Melo use_browser = 0; 11381758af10SArnaldo Carvalho de Melo else if (top.use_tui) 1139c0443df1SArnaldo Carvalho de Melo use_browser = 1; 1140c0443df1SArnaldo Carvalho de Melo 1141c0443df1SArnaldo Carvalho de Melo setup_browser(false); 1142c0443df1SArnaldo Carvalho de Melo 11432376c67aSArnaldo Carvalho de Melo status = perf_target__validate(target); 114416ad2ffbSNamhyung Kim if (status) { 11452376c67aSArnaldo Carvalho de Melo perf_target__strerror(target, status, errbuf, BUFSIZ); 114616ad2ffbSNamhyung Kim ui__warning("%s", errbuf); 114716ad2ffbSNamhyung Kim } 11484bd0f2d2SNamhyung Kim 11492376c67aSArnaldo Carvalho de Melo status = perf_target__parse_uid(target); 115016ad2ffbSNamhyung Kim if (status) { 115116ad2ffbSNamhyung Kim int saved_errno = errno; 115216ad2ffbSNamhyung Kim 11532376c67aSArnaldo Carvalho de Melo perf_target__strerror(target, status, errbuf, BUFSIZ); 11543780f488SNamhyung Kim ui__error("%s", errbuf); 115516ad2ffbSNamhyung Kim 115616ad2ffbSNamhyung Kim status = -saved_errno; 11570d37aa34SArnaldo Carvalho de Melo goto out_delete_evlist; 115816ad2ffbSNamhyung Kim } 11590d37aa34SArnaldo Carvalho de Melo 11602376c67aSArnaldo Carvalho de Melo if (perf_target__none(target)) 11612376c67aSArnaldo Carvalho de Melo target->system_wide = true; 116210b47d54SArnaldo Carvalho de Melo 11632376c67aSArnaldo Carvalho de Melo if (perf_evlist__create_maps(top.evlist, target) < 0) 11647e2ed097SArnaldo Carvalho de Melo usage_with_options(top_usage, options); 11657e2ed097SArnaldo Carvalho de Melo 11668c3e10ebSArnaldo Carvalho de Melo if (!top.evlist->nr_entries && 11678c3e10ebSArnaldo Carvalho de Melo perf_evlist__add_default(top.evlist) < 0) { 11683780f488SNamhyung Kim ui__error("Not enough memory for event selector list\n"); 11690de233b9SArnaldo Carvalho de Melo goto out_delete_maps; 117069aad6f1SArnaldo Carvalho de Melo } 11715a8e5a30SArnaldo Carvalho de Melo 1172d04b35f8SArnaldo Carvalho de Melo symbol_conf.nr_events = top.evlist->nr_entries; 1173d04b35f8SArnaldo Carvalho de Melo 11748c3e10ebSArnaldo Carvalho de Melo if (top.delay_secs < 1) 11758c3e10ebSArnaldo Carvalho de Melo top.delay_secs = 1; 117686470930SIngo Molnar 11772376c67aSArnaldo Carvalho de Melo if (opts->user_interval != ULLONG_MAX) 11782376c67aSArnaldo Carvalho de Melo opts->default_interval = opts->user_interval; 11792376c67aSArnaldo Carvalho de Melo if (opts->user_freq != UINT_MAX) 11802376c67aSArnaldo Carvalho de Melo opts->freq = opts->user_freq; 11812376c67aSArnaldo Carvalho de Melo 11827e4ff9e3SMike Galbraith /* 11837e4ff9e3SMike Galbraith * User specified count overrides default frequency. 11847e4ff9e3SMike Galbraith */ 11852376c67aSArnaldo Carvalho de Melo if (opts->default_interval) 11862376c67aSArnaldo Carvalho de Melo opts->freq = 0; 11872376c67aSArnaldo Carvalho de Melo else if (opts->freq) { 11882376c67aSArnaldo Carvalho de Melo opts->default_interval = opts->freq; 11897e4ff9e3SMike Galbraith } else { 11903780f488SNamhyung Kim ui__error("frequency and count are zero, aborting\n"); 11912376c67aSArnaldo Carvalho de Melo status = -EINVAL; 11920de233b9SArnaldo Carvalho de Melo goto out_delete_maps; 119369aad6f1SArnaldo Carvalho de Melo } 119469aad6f1SArnaldo Carvalho de Melo 11950c21f736SArnaldo Carvalho de Melo top.sym_evsel = perf_evlist__first(top.evlist); 1196cc841580SArnaldo Carvalho de Melo 1197ab81f3fdSArnaldo Carvalho de Melo symbol_conf.priv_size = sizeof(struct annotation); 119869aad6f1SArnaldo Carvalho de Melo 119969aad6f1SArnaldo Carvalho de Melo symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); 120069aad6f1SArnaldo Carvalho de Melo if (symbol__init() < 0) 120169aad6f1SArnaldo Carvalho de Melo return -1; 120269aad6f1SArnaldo Carvalho de Melo 1203ab81f3fdSArnaldo Carvalho de Melo sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout); 1204ab81f3fdSArnaldo Carvalho de Melo sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout); 1205ab81f3fdSArnaldo Carvalho de Melo sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout); 1206ab81f3fdSArnaldo Carvalho de Melo 120719d4ac3cSArnaldo Carvalho de Melo /* 120819d4ac3cSArnaldo Carvalho de Melo * Avoid annotation data structures overhead when symbols aren't on the 120919d4ac3cSArnaldo Carvalho de Melo * sort list. 121019d4ac3cSArnaldo Carvalho de Melo */ 12111758af10SArnaldo Carvalho de Melo top.sort_has_symbols = sort_sym.list.next != NULL; 121219d4ac3cSArnaldo Carvalho de Melo 12131758af10SArnaldo Carvalho de Melo get_term_dimensions(&top.winsize); 12148c3e10ebSArnaldo Carvalho de Melo if (top.print_entries == 0) { 12151758af10SArnaldo Carvalho de Melo struct sigaction act = { 12161758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 12171758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 12181758af10SArnaldo Carvalho de Melo }; 12191758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(&top); 12201758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 12213b6ed988SArnaldo Carvalho de Melo } 12223b6ed988SArnaldo Carvalho de Melo 12231758af10SArnaldo Carvalho de Melo status = __cmd_top(&top); 1224806fb630SArnaldo Carvalho de Melo 12250de233b9SArnaldo Carvalho de Melo out_delete_maps: 12260de233b9SArnaldo Carvalho de Melo perf_evlist__delete_maps(top.evlist); 12270d37aa34SArnaldo Carvalho de Melo out_delete_evlist: 12288c3e10ebSArnaldo Carvalho de Melo perf_evlist__delete(top.evlist); 122969aad6f1SArnaldo Carvalho de Melo 123069aad6f1SArnaldo Carvalho de Melo return status; 123186470930SIngo Molnar } 1232