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> 374b6ab94eSJosh Poimboeuf #include <subcmd/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" 43a18b027eSAndi Kleen #include "util/parse-branch-options.h" 440d3942dbSSukadev Bhattiprolu #include "arch/common.h" 4586470930SIngo Molnar 468f28827aSFrederic Weisbecker #include "util/debug.h" 478f28827aSFrederic Weisbecker 4886470930SIngo Molnar #include <assert.h> 4931d68e7bSArnaldo Carvalho de Melo #include <elf.h> 5086470930SIngo Molnar #include <fcntl.h> 5186470930SIngo Molnar 5286470930SIngo Molnar #include <stdio.h> 53923c42c1SMike Galbraith #include <termios.h> 54923c42c1SMike Galbraith #include <unistd.h> 559486aa38SArnaldo Carvalho de Melo #include <inttypes.h> 5686470930SIngo Molnar 5786470930SIngo Molnar #include <errno.h> 5886470930SIngo Molnar #include <time.h> 5986470930SIngo Molnar #include <sched.h> 6086470930SIngo Molnar 6186470930SIngo Molnar #include <sys/syscall.h> 6286470930SIngo Molnar #include <sys/ioctl.h> 63a8fa4960SArnaldo Carvalho de Melo #include <poll.h> 6486470930SIngo Molnar #include <sys/prctl.h> 6586470930SIngo Molnar #include <sys/wait.h> 6686470930SIngo Molnar #include <sys/uio.h> 6731d68e7bSArnaldo Carvalho de Melo #include <sys/utsname.h> 6886470930SIngo Molnar #include <sys/mman.h> 6986470930SIngo Molnar 7086470930SIngo Molnar #include <linux/types.h> 7186470930SIngo Molnar 7211859e82SArnaldo Carvalho de Melo static volatile int done; 7311859e82SArnaldo Carvalho de Melo 74933cbb1cSNamhyung Kim #define HEADER_LINE_NR 5 75933cbb1cSNamhyung Kim 761758af10SArnaldo Carvalho de Melo static void perf_top__update_print_entries(struct perf_top *top) 773b6ed988SArnaldo Carvalho de Melo { 78933cbb1cSNamhyung Kim top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; 793b6ed988SArnaldo Carvalho de Melo } 803b6ed988SArnaldo Carvalho de Melo 811d037ca1SIrina Tirdea static void perf_top__sig_winch(int sig __maybe_unused, 821d037ca1SIrina Tirdea siginfo_t *info __maybe_unused, void *arg) 833b6ed988SArnaldo Carvalho de Melo { 841758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 851758af10SArnaldo Carvalho de Melo 861758af10SArnaldo Carvalho de Melo get_term_dimensions(&top->winsize); 871758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(top); 883b6ed988SArnaldo Carvalho de Melo } 893b6ed988SArnaldo Carvalho de Melo 901758af10SArnaldo Carvalho de Melo static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) 91923c42c1SMike Galbraith { 92923c42c1SMike Galbraith struct symbol *sym; 93ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 94439d473bSArnaldo Carvalho de Melo struct map *map; 9536532461SArnaldo Carvalho de Melo int err = -1; 96923c42c1SMike Galbraith 97ab81f3fdSArnaldo Carvalho de Melo if (!he || !he->ms.sym) 98b0a9ab62SArnaldo Carvalho de Melo return -1; 99b0a9ab62SArnaldo Carvalho de Melo 100ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 101ab81f3fdSArnaldo Carvalho de Melo map = he->ms.map; 102b0a9ab62SArnaldo Carvalho de Melo 103b0a9ab62SArnaldo Carvalho de Melo /* 104b0a9ab62SArnaldo Carvalho de Melo * We can't annotate with just /proc/kallsyms 105b0a9ab62SArnaldo Carvalho de Melo */ 106bbb7f846SAdrian Hunter if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && 107bbb7f846SAdrian Hunter !dso__is_kcore(map->dso)) { 108ce6f4fabSArnaldo Carvalho de Melo pr_err("Can't annotate %s: No vmlinux file was found in the " 109ce6f4fabSArnaldo Carvalho de Melo "path\n", sym->name); 110ce6f4fabSArnaldo Carvalho de Melo sleep(1); 111b0a9ab62SArnaldo Carvalho de Melo return -1; 112b269876cSArnaldo Carvalho de Melo } 113b269876cSArnaldo Carvalho de Melo 114ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 115ce6f4fabSArnaldo Carvalho de Melo if (notes->src != NULL) { 116ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 117923c42c1SMike Galbraith goto out_assign; 118923c42c1SMike Galbraith } 119923c42c1SMike Galbraith 120ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 121923c42c1SMike Galbraith 122d04b35f8SArnaldo Carvalho de Melo if (symbol__alloc_hist(sym) < 0) { 123c97cf422SArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 12436532461SArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 12536532461SArnaldo Carvalho de Melo sym->name); 126ce6f4fabSArnaldo Carvalho de Melo sleep(1); 127c97cf422SArnaldo Carvalho de Melo return err; 128923c42c1SMike Galbraith } 12936532461SArnaldo Carvalho de Melo 130ab81f3fdSArnaldo Carvalho de Melo err = symbol__annotate(sym, map, 0); 13136532461SArnaldo Carvalho de Melo if (err == 0) { 132923c42c1SMike Galbraith out_assign: 1331758af10SArnaldo Carvalho de Melo top->sym_filter_entry = he; 13436532461SArnaldo Carvalho de Melo } 135c97cf422SArnaldo Carvalho de Melo 136ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 13736532461SArnaldo Carvalho de Melo return err; 138923c42c1SMike Galbraith } 139923c42c1SMike Galbraith 140ab81f3fdSArnaldo Carvalho de Melo static void __zero_source_counters(struct hist_entry *he) 141923c42c1SMike Galbraith { 142ab81f3fdSArnaldo Carvalho de Melo struct symbol *sym = he->ms.sym; 14336532461SArnaldo Carvalho de Melo symbol__annotate_zero_histograms(sym); 144923c42c1SMike Galbraith } 145923c42c1SMike Galbraith 14631d68e7bSArnaldo Carvalho de Melo static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) 14731d68e7bSArnaldo Carvalho de Melo { 14831d68e7bSArnaldo Carvalho de Melo struct utsname uts; 14931d68e7bSArnaldo Carvalho de Melo int err = uname(&uts); 15031d68e7bSArnaldo Carvalho de Melo 15131d68e7bSArnaldo Carvalho de Melo ui__warning("Out of bounds address found:\n\n" 15231d68e7bSArnaldo Carvalho de Melo "Addr: %" PRIx64 "\n" 15331d68e7bSArnaldo Carvalho de Melo "DSO: %s %c\n" 15431d68e7bSArnaldo Carvalho de Melo "Map: %" PRIx64 "-%" PRIx64 "\n" 15531d68e7bSArnaldo Carvalho de Melo "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" 15631d68e7bSArnaldo Carvalho de Melo "Arch: %s\n" 15731d68e7bSArnaldo Carvalho de Melo "Kernel: %s\n" 15831d68e7bSArnaldo Carvalho de Melo "Tools: %s\n\n" 15931d68e7bSArnaldo Carvalho de Melo "Not all samples will be on the annotation output.\n\n" 16031d68e7bSArnaldo Carvalho de Melo "Please report to linux-kernel@vger.kernel.org\n", 16131d68e7bSArnaldo Carvalho de Melo ip, map->dso->long_name, dso__symtab_origin(map->dso), 16231d68e7bSArnaldo Carvalho de Melo map->start, map->end, sym->start, sym->end, 16331d68e7bSArnaldo Carvalho de Melo sym->binding == STB_GLOBAL ? 'g' : 16431d68e7bSArnaldo Carvalho de Melo sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, 16531d68e7bSArnaldo Carvalho de Melo err ? "[unknown]" : uts.machine, 16631d68e7bSArnaldo Carvalho de Melo err ? "[unknown]" : uts.release, perf_version_string); 16731d68e7bSArnaldo Carvalho de Melo if (use_browser <= 0) 16831d68e7bSArnaldo Carvalho de Melo sleep(5); 16931d68e7bSArnaldo Carvalho de Melo 17031d68e7bSArnaldo Carvalho de Melo map->erange_warned = true; 17131d68e7bSArnaldo Carvalho de Melo } 17231d68e7bSArnaldo Carvalho de Melo 1731758af10SArnaldo Carvalho de Melo static void perf_top__record_precise_ip(struct perf_top *top, 1741758af10SArnaldo Carvalho de Melo struct hist_entry *he, 1751758af10SArnaldo Carvalho de Melo int counter, u64 ip) 176923c42c1SMike Galbraith { 177ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 178beefb8d0SNamhyung Kim struct symbol *sym = he->ms.sym; 17948c65bdaSNamhyung Kim int err = 0; 180ce6f4fabSArnaldo Carvalho de Melo 181beefb8d0SNamhyung Kim if (sym == NULL || (use_browser == 0 && 182beefb8d0SNamhyung Kim (top->sym_filter_entry == NULL || 183beefb8d0SNamhyung Kim top->sym_filter_entry->ms.sym != sym))) 184923c42c1SMike Galbraith return; 185923c42c1SMike Galbraith 186ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 187ce6f4fabSArnaldo Carvalho de Melo 188ce6f4fabSArnaldo Carvalho de Melo if (pthread_mutex_trylock(¬es->lock)) 189923c42c1SMike Galbraith return; 190923c42c1SMike Galbraith 191618afb29SArnaldo Carvalho de Melo err = hist_entry__inc_addr_samples(he, counter, ip); 192923c42c1SMike Galbraith 193ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 19431d68e7bSArnaldo Carvalho de Melo 195151ee834SNamhyung Kim if (unlikely(err)) { 1967c50391fSNamhyung Kim /* 1977c50391fSNamhyung Kim * This function is now called with he->hists->lock held. 1987c50391fSNamhyung Kim * Release it before going to sleep. 1997c50391fSNamhyung Kim */ 2007c50391fSNamhyung Kim pthread_mutex_unlock(&he->hists->lock); 2017c50391fSNamhyung Kim 20231d68e7bSArnaldo Carvalho de Melo if (err == -ERANGE && !he->ms.map->erange_warned) 20331d68e7bSArnaldo Carvalho de Melo ui__warn_map_erange(he->ms.map, sym, ip); 204b66d8c0cSArnaldo Carvalho de Melo else if (err == -ENOMEM) { 205b66d8c0cSArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 206b66d8c0cSArnaldo Carvalho de Melo sym->name); 207b66d8c0cSArnaldo Carvalho de Melo sleep(1); 208b66d8c0cSArnaldo Carvalho de Melo } 2097c50391fSNamhyung Kim 2107c50391fSNamhyung Kim pthread_mutex_lock(&he->hists->lock); 211923c42c1SMike Galbraith } 212151ee834SNamhyung Kim } 213923c42c1SMike Galbraith 2141758af10SArnaldo Carvalho de Melo static void perf_top__show_details(struct perf_top *top) 215923c42c1SMike Galbraith { 2161758af10SArnaldo Carvalho de Melo struct hist_entry *he = top->sym_filter_entry; 217ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 218923c42c1SMike Galbraith struct symbol *symbol; 21936532461SArnaldo Carvalho de Melo int more; 220923c42c1SMike Galbraith 221ab81f3fdSArnaldo Carvalho de Melo if (!he) 222923c42c1SMike Galbraith return; 223923c42c1SMike Galbraith 224ab81f3fdSArnaldo Carvalho de Melo symbol = he->ms.sym; 225ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(symbol); 226ce6f4fabSArnaldo Carvalho de Melo 227ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 228ce6f4fabSArnaldo Carvalho de Melo 229ce6f4fabSArnaldo Carvalho de Melo if (notes->src == NULL) 230ce6f4fabSArnaldo Carvalho de Melo goto out_unlock; 231923c42c1SMike Galbraith 2327289f83cSArnaldo Carvalho de Melo printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); 2331758af10SArnaldo Carvalho de Melo printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); 234923c42c1SMike Galbraith 235db8fd07aSNamhyung Kim more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, 2361758af10SArnaldo Carvalho de Melo 0, top->sym_pcnt_filter, top->print_entries, 4); 2375d484f99SArnaldo Carvalho de Melo 2385d484f99SArnaldo Carvalho de Melo if (top->evlist->enabled) { 2391758af10SArnaldo Carvalho de Melo if (top->zero) 2401758af10SArnaldo Carvalho de Melo symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); 24136532461SArnaldo Carvalho de Melo else 2421758af10SArnaldo Carvalho de Melo symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); 2435d484f99SArnaldo Carvalho de Melo } 24436532461SArnaldo Carvalho de Melo if (more != 0) 245923c42c1SMike Galbraith printf("%d lines not displayed, maybe increase display entries [e]\n", more); 246ce6f4fabSArnaldo Carvalho de Melo out_unlock: 247ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 248923c42c1SMike Galbraith } 24986470930SIngo Molnar 2501758af10SArnaldo Carvalho de Melo static void perf_top__print_sym_table(struct perf_top *top) 25186470930SIngo Molnar { 2528c3e10ebSArnaldo Carvalho de Melo char bf[160]; 2538c3e10ebSArnaldo Carvalho de Melo int printed = 0; 2541758af10SArnaldo Carvalho de Melo const int win_width = top->winsize.ws_col - 1; 255452ce03bSJiri Olsa struct perf_evsel *evsel = top->sym_evsel; 256452ce03bSJiri Olsa struct hists *hists = evsel__hists(evsel); 25786470930SIngo Molnar 25886470930SIngo Molnar puts(CONSOLE_CLEAR); 25986470930SIngo Molnar 2601758af10SArnaldo Carvalho de Melo perf_top__header_snprintf(top, bf, sizeof(bf)); 2618c3e10ebSArnaldo Carvalho de Melo printf("%s\n", bf); 26286470930SIngo Molnar 2631758af10SArnaldo Carvalho de Melo perf_top__reset_sample_counters(top); 26486470930SIngo Molnar 2651a105f74SArnaldo Carvalho de Melo printf("%-*.*s\n", win_width, win_width, graph_dotted_line); 26686470930SIngo Molnar 2674ea062edSArnaldo Carvalho de Melo if (hists->stats.nr_lost_warned != 2684ea062edSArnaldo Carvalho de Melo hists->stats.nr_events[PERF_RECORD_LOST]) { 2694ea062edSArnaldo Carvalho de Melo hists->stats.nr_lost_warned = 2704ea062edSArnaldo Carvalho de Melo hists->stats.nr_events[PERF_RECORD_LOST]; 2717b27509fSArnaldo Carvalho de Melo color_fprintf(stdout, PERF_COLOR_RED, 2727b27509fSArnaldo Carvalho de Melo "WARNING: LOST %d chunks, Check IO/CPU overload", 2734ea062edSArnaldo Carvalho de Melo hists->stats.nr_lost_warned); 274ab81f3fdSArnaldo Carvalho de Melo ++printed; 27593fc64f1SArnaldo Carvalho de Melo } 27693fc64f1SArnaldo Carvalho de Melo 2771758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 2781758af10SArnaldo Carvalho de Melo perf_top__show_details(top); 279923c42c1SMike Galbraith return; 280923c42c1SMike Galbraith } 281923c42c1SMike Galbraith 2825d484f99SArnaldo Carvalho de Melo if (top->evlist->enabled) { 283701937bdSNamhyung Kim if (top->zero) { 2844ea062edSArnaldo Carvalho de Melo hists__delete_entries(hists); 285701937bdSNamhyung Kim } else { 2864ea062edSArnaldo Carvalho de Melo hists__decay_entries(hists, top->hide_user_symbols, 2871758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols); 288701937bdSNamhyung Kim } 2895d484f99SArnaldo Carvalho de Melo } 290701937bdSNamhyung Kim 2914ea062edSArnaldo Carvalho de Melo hists__collapse_resort(hists, NULL); 292452ce03bSJiri Olsa perf_evsel__output_resort(evsel, NULL); 293701937bdSNamhyung Kim 2944ea062edSArnaldo Carvalho de Melo hists__output_recalc_col_len(hists, top->print_entries - printed); 2951a105f74SArnaldo Carvalho de Melo putchar('\n'); 2964ea062edSArnaldo Carvalho de Melo hists__fprintf(hists, false, top->print_entries - printed, win_width, 297fa5df943SNamhyung Kim top->min_percent, stdout); 29886470930SIngo Molnar } 29986470930SIngo Molnar 300923c42c1SMike Galbraith static void prompt_integer(int *target, const char *msg) 301923c42c1SMike Galbraith { 302923c42c1SMike Galbraith char *buf = malloc(0), *p; 303923c42c1SMike Galbraith size_t dummy = 0; 304923c42c1SMike Galbraith int tmp; 305923c42c1SMike Galbraith 306923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 307923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 308923c42c1SMike Galbraith return; 309923c42c1SMike Galbraith 310923c42c1SMike Galbraith p = strchr(buf, '\n'); 311923c42c1SMike Galbraith if (p) 312923c42c1SMike Galbraith *p = 0; 313923c42c1SMike Galbraith 314923c42c1SMike Galbraith p = buf; 315923c42c1SMike Galbraith while(*p) { 316923c42c1SMike Galbraith if (!isdigit(*p)) 317923c42c1SMike Galbraith goto out_free; 318923c42c1SMike Galbraith p++; 319923c42c1SMike Galbraith } 320923c42c1SMike Galbraith tmp = strtoul(buf, NULL, 10); 321923c42c1SMike Galbraith *target = tmp; 322923c42c1SMike Galbraith out_free: 323923c42c1SMike Galbraith free(buf); 324923c42c1SMike Galbraith } 325923c42c1SMike Galbraith 326923c42c1SMike Galbraith static void prompt_percent(int *target, const char *msg) 327923c42c1SMike Galbraith { 328923c42c1SMike Galbraith int tmp = 0; 329923c42c1SMike Galbraith 330923c42c1SMike Galbraith prompt_integer(&tmp, msg); 331923c42c1SMike Galbraith if (tmp >= 0 && tmp <= 100) 332923c42c1SMike Galbraith *target = tmp; 333923c42c1SMike Galbraith } 334923c42c1SMike Galbraith 3351758af10SArnaldo Carvalho de Melo static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) 336923c42c1SMike Galbraith { 337923c42c1SMike Galbraith char *buf = malloc(0), *p; 3381758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; 3394ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(top->sym_evsel); 340ab81f3fdSArnaldo Carvalho de Melo struct rb_node *next; 341923c42c1SMike Galbraith size_t dummy = 0; 342923c42c1SMike Galbraith 343923c42c1SMike Galbraith /* zero counters of active symbol */ 344923c42c1SMike Galbraith if (syme) { 345923c42c1SMike Galbraith __zero_source_counters(syme); 3461758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 347923c42c1SMike Galbraith } 348923c42c1SMike Galbraith 349923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 350923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 351923c42c1SMike Galbraith goto out_free; 352923c42c1SMike Galbraith 353923c42c1SMike Galbraith p = strchr(buf, '\n'); 354923c42c1SMike Galbraith if (p) 355923c42c1SMike Galbraith *p = 0; 356923c42c1SMike Galbraith 3574ea062edSArnaldo Carvalho de Melo next = rb_first(&hists->entries); 358ab81f3fdSArnaldo Carvalho de Melo while (next) { 359ab81f3fdSArnaldo Carvalho de Melo n = rb_entry(next, struct hist_entry, rb_node); 360ab81f3fdSArnaldo Carvalho de Melo if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { 361ab81f3fdSArnaldo Carvalho de Melo found = n; 362923c42c1SMike Galbraith break; 363923c42c1SMike Galbraith } 364ab81f3fdSArnaldo Carvalho de Melo next = rb_next(&n->rb_node); 365923c42c1SMike Galbraith } 366923c42c1SMike Galbraith 367923c42c1SMike Galbraith if (!found) { 36866aeb6d5SKirill Smelkov fprintf(stderr, "Sorry, %s is not active.\n", buf); 369923c42c1SMike Galbraith sleep(1); 370923c42c1SMike Galbraith } else 3711758af10SArnaldo Carvalho de Melo perf_top__parse_source(top, found); 372923c42c1SMike Galbraith 373923c42c1SMike Galbraith out_free: 374923c42c1SMike Galbraith free(buf); 375923c42c1SMike Galbraith } 376923c42c1SMike Galbraith 3771758af10SArnaldo Carvalho de Melo static void perf_top__print_mapped_keys(struct perf_top *top) 378923c42c1SMike Galbraith { 379091bd2e9SMike Galbraith char *name = NULL; 380091bd2e9SMike Galbraith 3811758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 3821758af10SArnaldo Carvalho de Melo struct symbol *sym = top->sym_filter_entry->ms.sym; 383091bd2e9SMike Galbraith name = sym->name; 384091bd2e9SMike Galbraith } 385091bd2e9SMike Galbraith 386091bd2e9SMike Galbraith fprintf(stdout, "\nMapped keys:\n"); 3871758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); 3881758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); 389091bd2e9SMike Galbraith 3901758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) 3917289f83cSArnaldo Carvalho de Melo fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); 392091bd2e9SMike Galbraith 3931758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); 394091bd2e9SMike Galbraith 3951758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); 396091bd2e9SMike Galbraith fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); 397091bd2e9SMike Galbraith fprintf(stdout, "\t[S] stop annotation.\n"); 398091bd2e9SMike Galbraith 3998ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4008ffcda17SArnaldo Carvalho de Melo "\t[K] hide kernel_symbols symbols. \t(%s)\n", 4011758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols ? "yes" : "no"); 4028ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4038ffcda17SArnaldo Carvalho de Melo "\t[U] hide user symbols. \t(%s)\n", 4041758af10SArnaldo Carvalho de Melo top->hide_user_symbols ? "yes" : "no"); 4051758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); 406091bd2e9SMike Galbraith fprintf(stdout, "\t[qQ] quit.\n"); 407091bd2e9SMike Galbraith } 408091bd2e9SMike Galbraith 4091758af10SArnaldo Carvalho de Melo static int perf_top__key_mapped(struct perf_top *top, int c) 410091bd2e9SMike Galbraith { 411091bd2e9SMike Galbraith switch (c) { 412091bd2e9SMike Galbraith case 'd': 413091bd2e9SMike Galbraith case 'e': 414091bd2e9SMike Galbraith case 'f': 415091bd2e9SMike Galbraith case 'z': 416091bd2e9SMike Galbraith case 'q': 417091bd2e9SMike Galbraith case 'Q': 4188ffcda17SArnaldo Carvalho de Melo case 'K': 4198ffcda17SArnaldo Carvalho de Melo case 'U': 4206cff0e8dSKirill Smelkov case 'F': 4216cff0e8dSKirill Smelkov case 's': 4226cff0e8dSKirill Smelkov case 'S': 423091bd2e9SMike Galbraith return 1; 424091bd2e9SMike Galbraith case 'E': 4251758af10SArnaldo Carvalho de Melo return top->evlist->nr_entries > 1 ? 1 : 0; 42683a0944fSIngo Molnar default: 42783a0944fSIngo Molnar break; 428091bd2e9SMike Galbraith } 429091bd2e9SMike Galbraith 430091bd2e9SMike Galbraith return 0; 431923c42c1SMike Galbraith } 432923c42c1SMike Galbraith 43311859e82SArnaldo Carvalho de Melo static bool perf_top__handle_keypress(struct perf_top *top, int c) 434923c42c1SMike Galbraith { 43511859e82SArnaldo Carvalho de Melo bool ret = true; 43611859e82SArnaldo Carvalho de Melo 4371758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) { 438091bd2e9SMike Galbraith struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 4393969cc09SJiri Olsa struct termios save; 440091bd2e9SMike Galbraith 4411758af10SArnaldo Carvalho de Melo perf_top__print_mapped_keys(top); 442091bd2e9SMike Galbraith fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); 443091bd2e9SMike Galbraith fflush(stdout); 444091bd2e9SMike Galbraith 4453969cc09SJiri Olsa set_term_quiet_input(&save); 446091bd2e9SMike Galbraith 447091bd2e9SMike Galbraith poll(&stdin_poll, 1, -1); 448091bd2e9SMike Galbraith c = getc(stdin); 449091bd2e9SMike Galbraith 450091bd2e9SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 4511758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) 45211859e82SArnaldo Carvalho de Melo return ret; 453091bd2e9SMike Galbraith } 454091bd2e9SMike Galbraith 455923c42c1SMike Galbraith switch (c) { 456923c42c1SMike Galbraith case 'd': 4571758af10SArnaldo Carvalho de Melo prompt_integer(&top->delay_secs, "Enter display delay"); 4581758af10SArnaldo Carvalho de Melo if (top->delay_secs < 1) 4591758af10SArnaldo Carvalho de Melo top->delay_secs = 1; 460923c42c1SMike Galbraith break; 461923c42c1SMike Galbraith case 'e': 4621758af10SArnaldo Carvalho de Melo prompt_integer(&top->print_entries, "Enter display entries (lines)"); 4631758af10SArnaldo Carvalho de Melo if (top->print_entries == 0) { 4641758af10SArnaldo Carvalho de Melo struct sigaction act = { 4651758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 4661758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 4671758af10SArnaldo Carvalho de Melo }; 4681758af10SArnaldo Carvalho de Melo perf_top__sig_winch(SIGWINCH, NULL, top); 4691758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 470509605dbSStephane Eranian } else { 4713b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, SIG_DFL); 472509605dbSStephane Eranian } 473923c42c1SMike Galbraith break; 474923c42c1SMike Galbraith case 'E': 4751758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) { 476ce2d17caSAkihiro Nagai /* Select 0 as the default event: */ 477ce2d17caSAkihiro Nagai int counter = 0; 478ce2d17caSAkihiro Nagai 479923c42c1SMike Galbraith fprintf(stderr, "\nAvailable events:"); 48069aad6f1SArnaldo Carvalho de Melo 4810050f7aaSArnaldo Carvalho de Melo evlist__for_each(top->evlist, top->sym_evsel) 4827289f83cSArnaldo Carvalho de Melo fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); 483923c42c1SMike Galbraith 484ec52d976SArnaldo Carvalho de Melo prompt_integer(&counter, "Enter details event counter"); 485923c42c1SMike Galbraith 4861758af10SArnaldo Carvalho de Melo if (counter >= top->evlist->nr_entries) { 4870c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 4887289f83cSArnaldo Carvalho de Melo fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); 489923c42c1SMike Galbraith sleep(1); 49069aad6f1SArnaldo Carvalho de Melo break; 491923c42c1SMike Galbraith } 4920050f7aaSArnaldo Carvalho de Melo evlist__for_each(top->evlist, top->sym_evsel) 4931758af10SArnaldo Carvalho de Melo if (top->sym_evsel->idx == counter) 49469aad6f1SArnaldo Carvalho de Melo break; 495ec52d976SArnaldo Carvalho de Melo } else 4960c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 497923c42c1SMike Galbraith break; 498923c42c1SMike Galbraith case 'f': 4991758af10SArnaldo Carvalho de Melo prompt_integer(&top->count_filter, "Enter display event count filter"); 500923c42c1SMike Galbraith break; 501923c42c1SMike Galbraith case 'F': 5021758af10SArnaldo Carvalho de Melo prompt_percent(&top->sym_pcnt_filter, 5031758af10SArnaldo Carvalho de Melo "Enter details display event filter (percent)"); 504923c42c1SMike Galbraith break; 5058ffcda17SArnaldo Carvalho de Melo case 'K': 5061758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols = !top->hide_kernel_symbols; 5078ffcda17SArnaldo Carvalho de Melo break; 508923c42c1SMike Galbraith case 'q': 509923c42c1SMike Galbraith case 'Q': 510923c42c1SMike Galbraith printf("exiting.\n"); 5111758af10SArnaldo Carvalho de Melo if (top->dump_symtab) 5121758af10SArnaldo Carvalho de Melo perf_session__fprintf_dsos(top->session, stderr); 51311859e82SArnaldo Carvalho de Melo ret = false; 51411859e82SArnaldo Carvalho de Melo break; 515923c42c1SMike Galbraith case 's': 5161758af10SArnaldo Carvalho de Melo perf_top__prompt_symbol(top, "Enter details symbol"); 517923c42c1SMike Galbraith break; 518923c42c1SMike Galbraith case 'S': 5191758af10SArnaldo Carvalho de Melo if (!top->sym_filter_entry) 520923c42c1SMike Galbraith break; 521923c42c1SMike Galbraith else { 5221758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry; 523923c42c1SMike Galbraith 5241758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 525923c42c1SMike Galbraith __zero_source_counters(syme); 526923c42c1SMike Galbraith } 527923c42c1SMike Galbraith break; 5288ffcda17SArnaldo Carvalho de Melo case 'U': 5291758af10SArnaldo Carvalho de Melo top->hide_user_symbols = !top->hide_user_symbols; 5308ffcda17SArnaldo Carvalho de Melo break; 531923c42c1SMike Galbraith case 'z': 5321758af10SArnaldo Carvalho de Melo top->zero = !top->zero; 533923c42c1SMike Galbraith break; 53483a0944fSIngo Molnar default: 53583a0944fSIngo Molnar break; 536923c42c1SMike Galbraith } 53711859e82SArnaldo Carvalho de Melo 53811859e82SArnaldo Carvalho de Melo return ret; 539923c42c1SMike Galbraith } 540923c42c1SMike Galbraith 541ab81f3fdSArnaldo Carvalho de Melo static void perf_top__sort_new_samples(void *arg) 542ab81f3fdSArnaldo Carvalho de Melo { 543ab81f3fdSArnaldo Carvalho de Melo struct perf_top *t = arg; 544452ce03bSJiri Olsa struct perf_evsel *evsel = t->sym_evsel; 5454ea062edSArnaldo Carvalho de Melo struct hists *hists; 5464ea062edSArnaldo Carvalho de Melo 547ab81f3fdSArnaldo Carvalho de Melo perf_top__reset_sample_counters(t); 548ab81f3fdSArnaldo Carvalho de Melo 549ab81f3fdSArnaldo Carvalho de Melo if (t->evlist->selected != NULL) 550ab81f3fdSArnaldo Carvalho de Melo t->sym_evsel = t->evlist->selected; 551ab81f3fdSArnaldo Carvalho de Melo 552452ce03bSJiri Olsa hists = evsel__hists(evsel); 5534ea062edSArnaldo Carvalho de Melo 5545d484f99SArnaldo Carvalho de Melo if (t->evlist->enabled) { 555701937bdSNamhyung Kim if (t->zero) { 5564ea062edSArnaldo Carvalho de Melo hists__delete_entries(hists); 557701937bdSNamhyung Kim } else { 5584ea062edSArnaldo Carvalho de Melo hists__decay_entries(hists, t->hide_user_symbols, 5591758af10SArnaldo Carvalho de Melo t->hide_kernel_symbols); 560ab81f3fdSArnaldo Carvalho de Melo } 5615d484f99SArnaldo Carvalho de Melo } 562ab81f3fdSArnaldo Carvalho de Melo 5634ea062edSArnaldo Carvalho de Melo hists__collapse_resort(hists, NULL); 564452ce03bSJiri Olsa perf_evsel__output_resort(evsel, NULL); 565701937bdSNamhyung Kim } 566701937bdSNamhyung Kim 5671758af10SArnaldo Carvalho de Melo static void *display_thread_tui(void *arg) 568c0443df1SArnaldo Carvalho de Melo { 5690d37aa34SArnaldo Carvalho de Melo struct perf_evsel *pos; 5701758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 571ab81f3fdSArnaldo Carvalho de Melo const char *help = "For a higher level overview, try: perf top --sort comm,dso"; 5729783adf7SNamhyung Kim struct hist_browser_timer hbt = { 5739783adf7SNamhyung Kim .timer = perf_top__sort_new_samples, 5749783adf7SNamhyung Kim .arg = top, 5759783adf7SNamhyung Kim .refresh = top->delay_secs, 5769783adf7SNamhyung Kim }; 577ab81f3fdSArnaldo Carvalho de Melo 5781758af10SArnaldo Carvalho de Melo perf_top__sort_new_samples(top); 5790d37aa34SArnaldo Carvalho de Melo 5800d37aa34SArnaldo Carvalho de Melo /* 5810d37aa34SArnaldo Carvalho de Melo * Initialize the uid_filter_str, in the future the TUI will allow 5820d37aa34SArnaldo Carvalho de Melo * Zooming in/out UIDs. For now juse use whatever the user passed 5830d37aa34SArnaldo Carvalho de Melo * via --uid. 5840d37aa34SArnaldo Carvalho de Melo */ 5854ea062edSArnaldo Carvalho de Melo evlist__for_each(top->evlist, pos) { 5864ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(pos); 5874ea062edSArnaldo Carvalho de Melo hists->uid_filter_str = top->record_opts.target.uid_str; 5884ea062edSArnaldo Carvalho de Melo } 5890d37aa34SArnaldo Carvalho de Melo 59013d1e536SNamhyung Kim perf_evlist__tui_browse_hists(top->evlist, help, &hbt, 5915d484f99SArnaldo Carvalho de Melo top->min_percent, 59268d80758SNamhyung Kim &top->session->header.env); 593ab81f3fdSArnaldo Carvalho de Melo 59411859e82SArnaldo Carvalho de Melo done = 1; 595c0443df1SArnaldo Carvalho de Melo return NULL; 596c0443df1SArnaldo Carvalho de Melo } 597c0443df1SArnaldo Carvalho de Melo 5984a1a9971SJiri Olsa static void display_sig(int sig __maybe_unused) 5994a1a9971SJiri Olsa { 6004a1a9971SJiri Olsa done = 1; 6014a1a9971SJiri Olsa } 6024a1a9971SJiri Olsa 6034a1a9971SJiri Olsa static void display_setup_sig(void) 6044a1a9971SJiri Olsa { 60509f4d78aSArnaldo Carvalho de Melo signal(SIGSEGV, sighandler_dump_stack); 60609f4d78aSArnaldo Carvalho de Melo signal(SIGFPE, sighandler_dump_stack); 6074a1a9971SJiri Olsa signal(SIGINT, display_sig); 6084a1a9971SJiri Olsa signal(SIGQUIT, display_sig); 6094a1a9971SJiri Olsa signal(SIGTERM, display_sig); 6104a1a9971SJiri Olsa } 6114a1a9971SJiri Olsa 6121758af10SArnaldo Carvalho de Melo static void *display_thread(void *arg) 61386470930SIngo Molnar { 61486470930SIngo Molnar struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 6159398c484SJiri Olsa struct termios save; 6161758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 617923c42c1SMike Galbraith int delay_msecs, c; 61886470930SIngo Molnar 6194a1a9971SJiri Olsa display_setup_sig(); 6203af6e338SArnaldo Carvalho de Melo pthread__unblock_sigwinch(); 621923c42c1SMike Galbraith repeat: 6221758af10SArnaldo Carvalho de Melo delay_msecs = top->delay_secs * 1000; 6239398c484SJiri Olsa set_term_quiet_input(&save); 624923c42c1SMike Galbraith /* trash return*/ 625923c42c1SMike Galbraith getc(stdin); 62686470930SIngo Molnar 62711859e82SArnaldo Carvalho de Melo while (!done) { 6281758af10SArnaldo Carvalho de Melo perf_top__print_sym_table(top); 6293af6e338SArnaldo Carvalho de Melo /* 6303af6e338SArnaldo Carvalho de Melo * Either timeout expired or we got an EINTR due to SIGWINCH, 6313af6e338SArnaldo Carvalho de Melo * refresh screen in both cases. 6323af6e338SArnaldo Carvalho de Melo */ 6333af6e338SArnaldo Carvalho de Melo switch (poll(&stdin_poll, 1, delay_msecs)) { 6343af6e338SArnaldo Carvalho de Melo case 0: 6353af6e338SArnaldo Carvalho de Melo continue; 6363af6e338SArnaldo Carvalho de Melo case -1: 6373af6e338SArnaldo Carvalho de Melo if (errno == EINTR) 6383af6e338SArnaldo Carvalho de Melo continue; 6393af6e338SArnaldo Carvalho de Melo /* Fall trhu */ 6403af6e338SArnaldo Carvalho de Melo default: 641923c42c1SMike Galbraith c = getc(stdin); 642923c42c1SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 643923c42c1SMike Galbraith 64411859e82SArnaldo Carvalho de Melo if (perf_top__handle_keypress(top, c)) 645923c42c1SMike Galbraith goto repeat; 64611859e82SArnaldo Carvalho de Melo done = 1; 64711859e82SArnaldo Carvalho de Melo } 64811859e82SArnaldo Carvalho de Melo } 64986470930SIngo Molnar 6504a1a9971SJiri Olsa tcsetattr(0, TCSAFLUSH, &save); 65186470930SIngo Molnar return NULL; 65286470930SIngo Molnar } 65386470930SIngo Molnar 654e7110b9fSArnaldo Carvalho de Melo static int symbol_filter(struct map *map, struct symbol *sym) 65586470930SIngo Molnar { 65686470930SIngo Molnar const char *name = sym->name; 65786470930SIngo Molnar 658cfc5acd4SArnaldo Carvalho de Melo if (!__map__is_kernel(map)) 659e7110b9fSArnaldo Carvalho de Melo return 0; 6603a3393efSAnton Blanchard /* 6613a3393efSAnton Blanchard * ppc64 uses function descriptors and appends a '.' to the 6623a3393efSAnton Blanchard * start of every instruction address. Remove it. 6633a3393efSAnton Blanchard */ 6643a3393efSAnton Blanchard if (name[0] == '.') 6653a3393efSAnton Blanchard name++; 6663a3393efSAnton Blanchard 66786470930SIngo Molnar if (!strcmp(name, "_text") || 66886470930SIngo Molnar !strcmp(name, "_etext") || 66986470930SIngo Molnar !strcmp(name, "_sinittext") || 67086470930SIngo Molnar !strncmp("init_module", name, 11) || 67186470930SIngo Molnar !strncmp("cleanup_module", name, 14) || 67286470930SIngo Molnar strstr(name, "_text_start") || 67386470930SIngo Molnar strstr(name, "_text_end")) 67486470930SIngo Molnar return 1; 67586470930SIngo Molnar 67682d1deb0SDavid Ahern if (symbol__is_idle(sym)) 677171b3be9SArnaldo Carvalho de Melo sym->ignore = true; 67886470930SIngo Molnar 67986470930SIngo Molnar return 0; 68086470930SIngo Molnar } 68186470930SIngo Molnar 6827c50391fSNamhyung Kim static int hist_iter__top_callback(struct hist_entry_iter *iter, 6837c50391fSNamhyung Kim struct addr_location *al, bool single, 6847c50391fSNamhyung Kim void *arg) 6857c50391fSNamhyung Kim { 6867c50391fSNamhyung Kim struct perf_top *top = arg; 6877c50391fSNamhyung Kim struct hist_entry *he = iter->he; 6887c50391fSNamhyung Kim struct perf_evsel *evsel = iter->evsel; 6897c50391fSNamhyung Kim 69064226bcfSNamhyung Kim if (sort__has_sym && single) 69164226bcfSNamhyung Kim perf_top__record_precise_ip(top, he, evsel->idx, al->addr); 6927c50391fSNamhyung Kim 693a18b027eSAndi Kleen hist__account_cycles(iter->sample->branch_stack, al, iter->sample, 694a18b027eSAndi Kleen !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY)); 6957c50391fSNamhyung Kim return 0; 6967c50391fSNamhyung Kim } 6977c50391fSNamhyung Kim 6981758af10SArnaldo Carvalho de Melo static void perf_event__process_sample(struct perf_tool *tool, 6991758af10SArnaldo Carvalho de Melo const union perf_event *event, 7007b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel, 7018d50e5b4SArnaldo Carvalho de Melo struct perf_sample *sample, 702743eb868SArnaldo Carvalho de Melo struct machine *machine) 70386470930SIngo Molnar { 7041758af10SArnaldo Carvalho de Melo struct perf_top *top = container_of(tool, struct perf_top, tool); 7051ed091c4SArnaldo Carvalho de Melo struct addr_location al; 70619d4ac3cSArnaldo Carvalho de Melo int err; 7075b2bb75aSArnaldo Carvalho de Melo 70823346f21SArnaldo Carvalho de Melo if (!machine && perf_guest) { 7096b118e92SDavid Ahern static struct intlist *seen; 7106b118e92SDavid Ahern 7116b118e92SDavid Ahern if (!seen) 712ffe0fb76SArnaldo Carvalho de Melo seen = intlist__new(NULL); 7136b118e92SDavid Ahern 714ef89325fSAdrian Hunter if (!intlist__has_entry(seen, sample->pid)) { 715a1645ce1SZhang, Yanmin pr_err("Can't find guest [%d]'s kernel information\n", 716ef89325fSAdrian Hunter sample->pid); 717ef89325fSAdrian Hunter intlist__add(seen, sample->pid); 7186b118e92SDavid Ahern } 719a1645ce1SZhang, Yanmin return; 720a1645ce1SZhang, Yanmin } 721a1645ce1SZhang, Yanmin 7220c095715SJoerg Roedel if (!machine) { 72311859e82SArnaldo Carvalho de Melo pr_err("%u unprocessable samples recorded.\r", 72475be989aSArnaldo Carvalho de Melo top->session->evlist->stats.nr_unprocessable_samples++); 7250c095715SJoerg Roedel return; 7260c095715SJoerg Roedel } 7270c095715SJoerg Roedel 7288115d60cSArnaldo Carvalho de Melo if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) 7291758af10SArnaldo Carvalho de Melo top->exact_samples++; 7301676b8a0SPeter Zijlstra 73133db4568SNamhyung Kim if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) 7321ed091c4SArnaldo Carvalho de Melo return; 73386470930SIngo Molnar 7341758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && 7355f6f5580SArnaldo Carvalho de Melo symbol_conf.kptr_restrict && 7365f6f5580SArnaldo Carvalho de Melo al.cpumode == PERF_RECORD_MISC_KERNEL) { 7375f6f5580SArnaldo Carvalho de Melo ui__warning( 7385f6f5580SArnaldo Carvalho de Melo "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" 7395f6f5580SArnaldo Carvalho de Melo "Check /proc/sys/kernel/kptr_restrict.\n\n" 7405f6f5580SArnaldo Carvalho de Melo "Kernel%s samples will not be resolved.\n", 741c6718350SWang Nan al.map && !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? 7425f6f5580SArnaldo Carvalho de Melo " modules" : ""); 7435f6f5580SArnaldo Carvalho de Melo if (use_browser <= 0) 7445f6f5580SArnaldo Carvalho de Melo sleep(5); 7451758af10SArnaldo Carvalho de Melo top->kptr_restrict_warned = true; 7465f6f5580SArnaldo Carvalho de Melo } 7475f6f5580SArnaldo Carvalho de Melo 74872b8fa17SArnaldo Carvalho de Melo if (al.sym == NULL) { 749e4a338d0SArnaldo Carvalho de Melo const char *msg = "Kernel samples will not be resolved.\n"; 75072b8fa17SArnaldo Carvalho de Melo /* 75172b8fa17SArnaldo Carvalho de Melo * As we do lazy loading of symtabs we only will know if the 75272b8fa17SArnaldo Carvalho de Melo * specified vmlinux file is invalid when we actually have a 75372b8fa17SArnaldo Carvalho de Melo * hit in kernel space and then try to load it. So if we get 75472b8fa17SArnaldo Carvalho de Melo * here and there are _no_ symbols in the DSO backing the 75572b8fa17SArnaldo Carvalho de Melo * kernel map, bail out. 75672b8fa17SArnaldo Carvalho de Melo * 75772b8fa17SArnaldo Carvalho de Melo * We may never get here, for instance, if we use -K/ 75872b8fa17SArnaldo Carvalho de Melo * --hide-kernel-symbols, even if the user specifies an 75972b8fa17SArnaldo Carvalho de Melo * invalid --vmlinux ;-) 76072b8fa17SArnaldo Carvalho de Melo */ 7611758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && !top->vmlinux_warned && 762e4a338d0SArnaldo Carvalho de Melo al.map == machine->vmlinux_maps[MAP__FUNCTION] && 76372b8fa17SArnaldo Carvalho de Melo RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { 764e4a338d0SArnaldo Carvalho de Melo if (symbol_conf.vmlinux_name) { 76518425f13SArnaldo Carvalho de Melo char serr[256]; 76618425f13SArnaldo Carvalho de Melo dso__strerror_load(al.map->dso, serr, sizeof(serr)); 76718425f13SArnaldo Carvalho de Melo ui__warning("The %s file can't be used: %s\n%s", 76818425f13SArnaldo Carvalho de Melo symbol_conf.vmlinux_name, serr, msg); 769e4a338d0SArnaldo Carvalho de Melo } else { 770e4a338d0SArnaldo Carvalho de Melo ui__warning("A vmlinux file was not found.\n%s", 771e4a338d0SArnaldo Carvalho de Melo msg); 772e4a338d0SArnaldo Carvalho de Melo } 773e4a338d0SArnaldo Carvalho de Melo 774e4a338d0SArnaldo Carvalho de Melo if (use_browser <= 0) 775e4a338d0SArnaldo Carvalho de Melo sleep(5); 7761758af10SArnaldo Carvalho de Melo top->vmlinux_warned = true; 77772b8fa17SArnaldo Carvalho de Melo } 77872b8fa17SArnaldo Carvalho de Melo } 77972b8fa17SArnaldo Carvalho de Melo 780ab81f3fdSArnaldo Carvalho de Melo if (al.sym == NULL || !al.sym->ignore) { 7814ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(evsel); 7827c50391fSNamhyung Kim struct hist_entry_iter iter = { 783063bd936SNamhyung Kim .evsel = evsel, 784063bd936SNamhyung Kim .sample = sample, 7857c50391fSNamhyung Kim .add_entry_cb = hist_iter__top_callback, 7867c50391fSNamhyung Kim }; 78770db7533SArnaldo Carvalho de Melo 7887c50391fSNamhyung Kim if (symbol_conf.cumulate_callchain) 7897c50391fSNamhyung Kim iter.ops = &hist_iter_cumulative; 7907c50391fSNamhyung Kim else 7917c50391fSNamhyung Kim iter.ops = &hist_iter_normal; 79219d4ac3cSArnaldo Carvalho de Melo 7934ea062edSArnaldo Carvalho de Melo pthread_mutex_lock(&hists->lock); 7947c50391fSNamhyung Kim 795063bd936SNamhyung Kim err = hist_entry_iter__add(&iter, &al, top->max_stack, top); 7967c50391fSNamhyung Kim if (err < 0) 797ab81f3fdSArnaldo Carvalho de Melo pr_err("Problem incrementing symbol period, skipping event\n"); 798ab81f3fdSArnaldo Carvalho de Melo 7994ea062edSArnaldo Carvalho de Melo pthread_mutex_unlock(&hists->lock); 8005807806aSArnaldo Carvalho de Melo } 801ab81f3fdSArnaldo Carvalho de Melo 802b91fc39fSArnaldo Carvalho de Melo addr_location__put(&al); 80386470930SIngo Molnar } 80486470930SIngo Molnar 8051758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read_idx(struct perf_top *top, int idx) 80686470930SIngo Molnar { 8078d50e5b4SArnaldo Carvalho de Melo struct perf_sample sample; 8087b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel; 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; 812743eb868SArnaldo Carvalho de Melo u8 origin; 8135538becaSFrederic Weisbecker int ret; 81486470930SIngo Molnar 8151758af10SArnaldo Carvalho de Melo while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { 8160807d2d8SArnaldo Carvalho de Melo ret = perf_evlist__parse_sample(top->evlist, event, &sample); 8175538becaSFrederic Weisbecker if (ret) { 8185538becaSFrederic Weisbecker pr_err("Can't parse sample, err = %d\n", ret); 8198e50d384SZhouyi Zhou goto next_event; 8205538becaSFrederic Weisbecker } 82104391debSArnaldo Carvalho de Melo 8221758af10SArnaldo Carvalho de Melo evsel = perf_evlist__id2evsel(session->evlist, sample.id); 8237b27509fSArnaldo Carvalho de Melo assert(evsel != NULL); 8247b27509fSArnaldo Carvalho de Melo 825743eb868SArnaldo Carvalho de Melo origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 826743eb868SArnaldo Carvalho de Melo 8275b2bb75aSArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) 8281758af10SArnaldo Carvalho de Melo ++top->samples; 829743eb868SArnaldo Carvalho de Melo 830743eb868SArnaldo Carvalho de Melo switch (origin) { 831743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_USER: 8321758af10SArnaldo Carvalho de Melo ++top->us_samples; 8331758af10SArnaldo Carvalho de Melo if (top->hide_user_symbols) 8348e50d384SZhouyi Zhou goto next_event; 83534ba5122SArnaldo Carvalho de Melo machine = &session->machines.host; 836743eb868SArnaldo Carvalho de Melo break; 837743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_KERNEL: 8381758af10SArnaldo Carvalho de Melo ++top->kernel_samples; 8391758af10SArnaldo Carvalho de Melo if (top->hide_kernel_symbols) 8408e50d384SZhouyi Zhou goto next_event; 84134ba5122SArnaldo Carvalho de Melo machine = &session->machines.host; 842743eb868SArnaldo Carvalho de Melo break; 843743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_KERNEL: 8441758af10SArnaldo Carvalho de Melo ++top->guest_kernel_samples; 845ef89325fSAdrian Hunter machine = perf_session__find_machine(session, 846ef89325fSAdrian Hunter sample.pid); 847743eb868SArnaldo Carvalho de Melo break; 848743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_USER: 8491758af10SArnaldo Carvalho de Melo ++top->guest_us_samples; 850743eb868SArnaldo Carvalho de Melo /* 851743eb868SArnaldo Carvalho de Melo * TODO: we don't process guest user from host side 852743eb868SArnaldo Carvalho de Melo * except simple counting. 853743eb868SArnaldo Carvalho de Melo */ 8548e50d384SZhouyi Zhou goto next_event; 8554b37af59SNamhyung Kim default: 8564b37af59SNamhyung Kim if (event->header.type == PERF_RECORD_SAMPLE) 8574b37af59SNamhyung Kim goto next_event; 8584b37af59SNamhyung Kim machine = &session->machines.host; 8594b37af59SNamhyung Kim break; 860743eb868SArnaldo Carvalho de Melo } 861743eb868SArnaldo Carvalho de Melo 862743eb868SArnaldo Carvalho de Melo 8631758af10SArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) { 8641758af10SArnaldo Carvalho de Melo perf_event__process_sample(&top->tool, event, evsel, 8651758af10SArnaldo Carvalho de Melo &sample, machine); 8661758af10SArnaldo Carvalho de Melo } else if (event->header.type < PERF_RECORD_MAX) { 8674ea062edSArnaldo Carvalho de Melo hists__inc_nr_events(evsel__hists(evsel), event->header.type); 868162f0befSFrederic Weisbecker machine__process_event(machine, event, &sample); 8697b27509fSArnaldo Carvalho de Melo } else 87075be989aSArnaldo Carvalho de Melo ++session->evlist->stats.nr_unknown_events; 8718e50d384SZhouyi Zhou next_event: 8728e50d384SZhouyi Zhou perf_evlist__mmap_consume(top->evlist, idx); 87386470930SIngo Molnar } 87486470930SIngo Molnar } 87586470930SIngo Molnar 8761758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read(struct perf_top *top) 8772f01190aSFrederic Weisbecker { 87870db7533SArnaldo Carvalho de Melo int i; 8792f01190aSFrederic Weisbecker 8801758af10SArnaldo Carvalho de Melo for (i = 0; i < top->evlist->nr_mmaps; i++) 8811758af10SArnaldo Carvalho de Melo perf_top__mmap_read_idx(top, i); 8822f01190aSFrederic Weisbecker } 8832f01190aSFrederic Weisbecker 88411859e82SArnaldo Carvalho de Melo static int perf_top__start_counters(struct perf_top *top) 88572cb7013SArnaldo Carvalho de Melo { 88656e52e85SArnaldo Carvalho de Melo char msg[512]; 8876a4bb04cSJiri Olsa struct perf_evsel *counter; 8881758af10SArnaldo Carvalho de Melo struct perf_evlist *evlist = top->evlist; 889b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 890727ab04eSArnaldo Carvalho de Melo 8912376c67aSArnaldo Carvalho de Melo perf_evlist__config(evlist, opts); 89272cb7013SArnaldo Carvalho de Melo 8930050f7aaSArnaldo Carvalho de Melo evlist__for_each(evlist, counter) { 89472cb7013SArnaldo Carvalho de Melo try_again: 8951758af10SArnaldo Carvalho de Melo if (perf_evsel__open(counter, top->evlist->cpus, 8966a4bb04cSJiri Olsa top->evlist->threads) < 0) { 89756e52e85SArnaldo Carvalho de Melo if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { 89872cb7013SArnaldo Carvalho de Melo if (verbose) 899c0a54341SArnaldo Carvalho de Melo ui__warning("%s\n", msg); 90072cb7013SArnaldo Carvalho de Melo goto try_again; 90172cb7013SArnaldo Carvalho de Melo } 902c286c419SArnaldo Carvalho de Melo 90356e52e85SArnaldo Carvalho de Melo perf_evsel__open_strerror(counter, &opts->target, 90456e52e85SArnaldo Carvalho de Melo errno, msg, sizeof(msg)); 90556e52e85SArnaldo Carvalho de Melo ui__error("%s\n", msg); 906c286c419SArnaldo Carvalho de Melo goto out_err; 90772cb7013SArnaldo Carvalho de Melo } 90872cb7013SArnaldo Carvalho de Melo } 90970db7533SArnaldo Carvalho de Melo 9102376c67aSArnaldo Carvalho de Melo if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { 9113780f488SNamhyung Kim ui__error("Failed to mmap with %d (%s)\n", 912809adea6SMasami Hiramatsu errno, strerror_r(errno, msg, sizeof(msg))); 913c286c419SArnaldo Carvalho de Melo goto out_err; 914c286c419SArnaldo Carvalho de Melo } 915c286c419SArnaldo Carvalho de Melo 91611859e82SArnaldo Carvalho de Melo return 0; 917c286c419SArnaldo Carvalho de Melo 918c286c419SArnaldo Carvalho de Melo out_err: 91911859e82SArnaldo Carvalho de Melo return -1; 92072cb7013SArnaldo Carvalho de Melo } 92172cb7013SArnaldo Carvalho de Melo 9228f0f684bSNamhyung Kim static int perf_top__setup_sample_type(struct perf_top *top __maybe_unused) 92319d4ac3cSArnaldo Carvalho de Melo { 9248f0f684bSNamhyung Kim if (!sort__has_sym) { 92519d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) { 9263780f488SNamhyung Kim ui__error("Selected -g but \"sym\" not present in --sort/-s."); 92719d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 92819d4ac3cSArnaldo Carvalho de Melo } 9292376c67aSArnaldo Carvalho de Melo } else if (callchain_param.mode != CHAIN_NONE) { 93019d4ac3cSArnaldo Carvalho de Melo if (callchain_register_param(&callchain_param) < 0) { 9313780f488SNamhyung Kim ui__error("Can't register callchain params.\n"); 93219d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 93319d4ac3cSArnaldo Carvalho de Melo } 93419d4ac3cSArnaldo Carvalho de Melo } 93519d4ac3cSArnaldo Carvalho de Melo 93619d4ac3cSArnaldo Carvalho de Melo return 0; 93719d4ac3cSArnaldo Carvalho de Melo } 93819d4ac3cSArnaldo Carvalho de Melo 9391758af10SArnaldo Carvalho de Melo static int __cmd_top(struct perf_top *top) 940716c69feSIngo Molnar { 941b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 942716c69feSIngo Molnar pthread_t thread; 94319d4ac3cSArnaldo Carvalho de Melo int ret; 944f5fc1412SJiri Olsa 9456a4d98d7SJiri Olsa top->session = perf_session__new(NULL, false, NULL); 9461758af10SArnaldo Carvalho de Melo if (top->session == NULL) 94752e02834STaeung Song return -1; 948716c69feSIngo Molnar 94936035f78SAdrian Hunter machines__set_symbol_filter(&top->session->machines, symbol_filter); 95036035f78SAdrian Hunter 9510d3942dbSSukadev Bhattiprolu if (!objdump_path) { 952eebd0bfcSArnaldo Carvalho de Melo ret = perf_env__lookup_objdump(&top->session->header.env); 9530d3942dbSSukadev Bhattiprolu if (ret) 9540d3942dbSSukadev Bhattiprolu goto out_delete; 9550d3942dbSSukadev Bhattiprolu } 9560d3942dbSSukadev Bhattiprolu 9571758af10SArnaldo Carvalho de Melo ret = perf_top__setup_sample_type(top); 95819d4ac3cSArnaldo Carvalho de Melo if (ret) 95919d4ac3cSArnaldo Carvalho de Melo goto out_delete; 96019d4ac3cSArnaldo Carvalho de Melo 9619d8b172fSMasami Hiramatsu if (perf_session__register_idle_thread(top->session) < 0) 962c53d138dSNamhyung Kim goto out_delete; 963c53d138dSNamhyung Kim 964a33fbd56SArnaldo Carvalho de Melo machine__synthesize_threads(&top->session->machines.host, &opts->target, 9659d9cad76SKan Liang top->evlist->threads, false, opts->proc_map_timeout); 9662e7ea3abSKan Liang 9672e7ea3abSKan Liang if (sort__has_socket) { 9682e7ea3abSKan Liang ret = perf_env__read_cpu_topology_map(&perf_env); 9692e7ea3abSKan Liang if (ret < 0) 9702e7ea3abSKan Liang goto out_err_cpu_topo; 9712e7ea3abSKan Liang } 9722e7ea3abSKan Liang 97311859e82SArnaldo Carvalho de Melo ret = perf_top__start_counters(top); 97411859e82SArnaldo Carvalho de Melo if (ret) 97511859e82SArnaldo Carvalho de Melo goto out_delete; 97611859e82SArnaldo Carvalho de Melo 9771758af10SArnaldo Carvalho de Melo top->session->evlist = top->evlist; 9787b56cce2SArnaldo Carvalho de Melo perf_session__set_id_hdr_size(top->session); 97986470930SIngo Molnar 9802376c67aSArnaldo Carvalho de Melo /* 9812376c67aSArnaldo Carvalho de Melo * When perf is starting the traced process, all the events (apart from 9822376c67aSArnaldo Carvalho de Melo * group members) have enable_on_exec=1 set, so don't spoil it by 9832376c67aSArnaldo Carvalho de Melo * prematurely enabling them. 9842376c67aSArnaldo Carvalho de Melo * 9852376c67aSArnaldo Carvalho de Melo * XXX 'top' still doesn't start workloads like record, trace, but should, 9862376c67aSArnaldo Carvalho de Melo * so leave the check here. 9872376c67aSArnaldo Carvalho de Melo */ 988602ad878SArnaldo Carvalho de Melo if (!target__none(&opts->target)) 9892376c67aSArnaldo Carvalho de Melo perf_evlist__enable(top->evlist); 9902376c67aSArnaldo Carvalho de Melo 9912f01190aSFrederic Weisbecker /* Wait for a minimal set of events before starting the snapshot */ 992f66a889dSArnaldo Carvalho de Melo perf_evlist__poll(top->evlist, 100); 9932f01190aSFrederic Weisbecker 9941758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 9952f01190aSFrederic Weisbecker 99611859e82SArnaldo Carvalho de Melo ret = -1; 997c0443df1SArnaldo Carvalho de Melo if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : 9981758af10SArnaldo Carvalho de Melo display_thread), top)) { 9993780f488SNamhyung Kim ui__error("Could not create display thread.\n"); 100011859e82SArnaldo Carvalho de Melo goto out_delete; 100186470930SIngo Molnar } 100286470930SIngo Molnar 10031758af10SArnaldo Carvalho de Melo if (top->realtime_prio) { 100486470930SIngo Molnar struct sched_param param; 100586470930SIngo Molnar 10061758af10SArnaldo Carvalho de Melo param.sched_priority = top->realtime_prio; 100786470930SIngo Molnar if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { 10083780f488SNamhyung Kim ui__error("Could not set realtime priority.\n"); 1009ae256fa2SJiri Olsa goto out_join; 101086470930SIngo Molnar } 101186470930SIngo Molnar } 101286470930SIngo Molnar 101311859e82SArnaldo Carvalho de Melo while (!done) { 10141758af10SArnaldo Carvalho de Melo u64 hits = top->samples; 101586470930SIngo Molnar 10161758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 101786470930SIngo Molnar 10181758af10SArnaldo Carvalho de Melo if (hits == top->samples) 1019f66a889dSArnaldo Carvalho de Melo ret = perf_evlist__poll(top->evlist, 100); 102086470930SIngo Molnar } 102186470930SIngo Molnar 102211859e82SArnaldo Carvalho de Melo ret = 0; 1023ae256fa2SJiri Olsa out_join: 1024ae256fa2SJiri Olsa pthread_join(thread, NULL); 102519d4ac3cSArnaldo Carvalho de Melo out_delete: 10261758af10SArnaldo Carvalho de Melo perf_session__delete(top->session); 10271758af10SArnaldo Carvalho de Melo top->session = NULL; 102819d4ac3cSArnaldo Carvalho de Melo 102911859e82SArnaldo Carvalho de Melo return ret; 10302e7ea3abSKan Liang 10312e7ea3abSKan Liang out_err_cpu_topo: { 10322e7ea3abSKan Liang char errbuf[BUFSIZ]; 10332e7ea3abSKan Liang const char *err = strerror_r(-ret, errbuf, sizeof(errbuf)); 10342e7ea3abSKan Liang 10352e7ea3abSKan Liang ui__error("Could not read the CPU topology map: %s\n", err); 10362e7ea3abSKan Liang goto out_delete; 10372e7ea3abSKan Liang } 103819d4ac3cSArnaldo Carvalho de Melo } 103919d4ac3cSArnaldo Carvalho de Melo 104019d4ac3cSArnaldo Carvalho de Melo static int 1041ae779a63SJiri Olsa callchain_opt(const struct option *opt, const char *arg, int unset) 1042ae779a63SJiri Olsa { 1043ae779a63SJiri Olsa symbol_conf.use_callchain = true; 1044ae779a63SJiri Olsa return record_callchain_opt(opt, arg, unset); 1045ae779a63SJiri Olsa } 1046ae779a63SJiri Olsa 1047ae779a63SJiri Olsa static int 10481758af10SArnaldo Carvalho de Melo parse_callchain_opt(const struct option *opt, const char *arg, int unset) 104919d4ac3cSArnaldo Carvalho de Melo { 1050a2c10d39SNamhyung Kim struct record_opts *record = (struct record_opts *)opt->value; 1051a2c10d39SNamhyung Kim 1052a2c10d39SNamhyung Kim record->callgraph_set = true; 1053a2c10d39SNamhyung Kim callchain_param.enabled = !unset; 1054a2c10d39SNamhyung Kim callchain_param.record_mode = CALLCHAIN_FP; 1055a2c10d39SNamhyung Kim 1056a2c10d39SNamhyung Kim /* 1057a2c10d39SNamhyung Kim * --no-call-graph 1058a2c10d39SNamhyung Kim */ 1059a2c10d39SNamhyung Kim if (unset) { 1060a2c10d39SNamhyung Kim symbol_conf.use_callchain = false; 1061a2c10d39SNamhyung Kim callchain_param.record_mode = CALLCHAIN_NONE; 1062a2c10d39SNamhyung Kim return 0; 1063a2c10d39SNamhyung Kim } 1064a2c10d39SNamhyung Kim 1065a2c10d39SNamhyung Kim return parse_callchain_top_opt(arg); 106686470930SIngo Molnar } 106786470930SIngo Molnar 1068b8cbb349SWang Nan static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused) 1069eb853e80SJiri Olsa { 1070eb853e80SJiri Olsa if (!strcmp(var, "top.call-graph")) 10715a2e5e85SNamhyung Kim var = "call-graph.record-mode"; /* fall-through */ 1072104ac991SNamhyung Kim if (!strcmp(var, "top.children")) { 1073104ac991SNamhyung Kim symbol_conf.cumulate_callchain = perf_config_bool(var, value); 1074104ac991SNamhyung Kim return 0; 1075104ac991SNamhyung Kim } 1076eb853e80SJiri Olsa 1077b8cbb349SWang Nan return 0; 1078eb853e80SJiri Olsa } 1079eb853e80SJiri Olsa 1080fa5df943SNamhyung Kim static int 1081fa5df943SNamhyung Kim parse_percent_limit(const struct option *opt, const char *arg, 1082fa5df943SNamhyung Kim int unset __maybe_unused) 1083fa5df943SNamhyung Kim { 1084fa5df943SNamhyung Kim struct perf_top *top = opt->value; 1085fa5df943SNamhyung Kim 1086fa5df943SNamhyung Kim top->min_percent = strtof(arg, NULL); 1087fa5df943SNamhyung Kim return 0; 1088fa5df943SNamhyung Kim } 1089fa5df943SNamhyung Kim 109076a26549SNamhyung Kim const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP 109176a26549SNamhyung Kim "\n\t\t\t\tDefault: fp,graph,0.5,caller,function"; 1092a2c10d39SNamhyung Kim 10931d037ca1SIrina Tirdea int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) 10941758af10SArnaldo Carvalho de Melo { 109516ad2ffbSNamhyung Kim char errbuf[BUFSIZ]; 10961758af10SArnaldo Carvalho de Melo struct perf_top top = { 10971758af10SArnaldo Carvalho de Melo .count_filter = 5, 10981758af10SArnaldo Carvalho de Melo .delay_secs = 2, 10992376c67aSArnaldo Carvalho de Melo .record_opts = { 11002376c67aSArnaldo Carvalho de Melo .mmap_pages = UINT_MAX, 11012376c67aSArnaldo Carvalho de Melo .user_freq = UINT_MAX, 11022376c67aSArnaldo Carvalho de Melo .user_interval = ULLONG_MAX, 1103447a6013SArnaldo Carvalho de Melo .freq = 4000, /* 4 KHz */ 1104d1cb9fceSNamhyung Kim .target = { 1105d1cb9fceSNamhyung Kim .uses_mmap = true, 1106d1cb9fceSNamhyung Kim }, 11079d9cad76SKan Liang .proc_map_timeout = 500, 11082376c67aSArnaldo Carvalho de Melo }, 11095dbb6e81SWaiman Long .max_stack = PERF_MAX_STACK_DEPTH, 11102376c67aSArnaldo Carvalho de Melo .sym_pcnt_filter = 5, 11111758af10SArnaldo Carvalho de Melo }; 1112b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top.record_opts; 1113602ad878SArnaldo Carvalho de Melo struct target *target = &opts->target; 11141758af10SArnaldo Carvalho de Melo const struct option options[] = { 11158c3e10ebSArnaldo Carvalho de Melo OPT_CALLBACK('e', "event", &top.evlist, "event", 111686470930SIngo Molnar "event selector. use 'perf list' to list available events", 1117f120f9d5SJiri Olsa parse_events_option), 11182376c67aSArnaldo Carvalho de Melo OPT_U64('c', "count", &opts->user_interval, "event period to sample"), 11192376c67aSArnaldo Carvalho de Melo OPT_STRING('p', "pid", &target->pid, "pid", 1120d6d901c2SZhang, Yanmin "profile events on existing process id"), 11212376c67aSArnaldo Carvalho de Melo OPT_STRING('t', "tid", &target->tid, "tid", 1122d6d901c2SZhang, Yanmin "profile events on existing thread id"), 11232376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('a', "all-cpus", &target->system_wide, 112486470930SIngo Molnar "system-wide collection from all CPUs"), 11252376c67aSArnaldo Carvalho de Melo OPT_STRING('C', "cpu", &target->cpu_list, "cpu", 1126c45c6ea2SStephane Eranian "list of cpus to monitor"), 1127b32d133aSArnaldo Carvalho de Melo OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1128b32d133aSArnaldo Carvalho de Melo "file", "vmlinux pathname"), 1129fc2be696SWilly Tarreau OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, 1130fc2be696SWilly Tarreau "don't load vmlinux even if found"), 11318c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, 11328ffcda17SArnaldo Carvalho de Melo "hide kernel symbols"), 1133994a1f78SJiri Olsa OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", 1134994a1f78SJiri Olsa "number of mmap data pages", 1135994a1f78SJiri Olsa perf_evlist__parse_mmap_pages), 11361758af10SArnaldo Carvalho de Melo OPT_INTEGER('r', "realtime", &top.realtime_prio, 113786470930SIngo Molnar "collect data with this RT SCHED_FIFO priority"), 11388c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('d', "delay", &top.delay_secs, 113986470930SIngo Molnar "number of seconds to delay between refreshes"), 11401758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, 114186470930SIngo Molnar "dump the symbol table used for profiling"), 11428c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('f', "count-filter", &top.count_filter, 114386470930SIngo Molnar "only display functions with more events than this"), 1144bf80669eSDavid Ahern OPT_BOOLEAN(0, "group", &opts->group, 114586470930SIngo Molnar "put the counters into a counter group"), 11462376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, 11472376c67aSArnaldo Carvalho de Melo "child tasks do not inherit counters"), 11481758af10SArnaldo Carvalho de Melo OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", 11496cff0e8dSKirill Smelkov "symbol to annotate"), 11502376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), 11512376c67aSArnaldo Carvalho de Melo OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), 11528c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('E', "entries", &top.print_entries, 115386470930SIngo Molnar "display this many functions"), 11548c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, 11558ffcda17SArnaldo Carvalho de Melo "hide user symbols"), 11561758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), 11571758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), 1158c0555642SIan Munsie OPT_INCR('v', "verbose", &verbose, 11593da297a6SIngo Molnar "be more verbose (show counter open errors, etc)"), 1160ab81f3fdSArnaldo Carvalho de Melo OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 1161a2ce067eSNamhyung Kim "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." 1162a2ce067eSNamhyung Kim " Please refer the man page for the complete list."), 11636fe8c26dSNamhyung Kim OPT_STRING(0, "fields", &field_order, "key[,keys...]", 11646fe8c26dSNamhyung Kim "output field(s): overhead, period, sample plus all of sort keys"), 1165ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 1166ab81f3fdSArnaldo Carvalho de Melo "Show a column with the number of samples"), 1167bf80669eSDavid Ahern OPT_CALLBACK_NOOPT('g', NULL, &top.record_opts, 1168a2c10d39SNamhyung Kim NULL, "enables call-graph recording and display", 1169ae779a63SJiri Olsa &callchain_opt), 1170ae779a63SJiri Olsa OPT_CALLBACK(0, "call-graph", &top.record_opts, 117176a26549SNamhyung Kim "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]", 1172a2c10d39SNamhyung Kim top_callchain_help, &parse_callchain_opt), 11731432ec34SNamhyung Kim OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, 11741432ec34SNamhyung Kim "Accumulate callchains of children and show total overhead as well"), 11755dbb6e81SWaiman Long OPT_INTEGER(0, "max-stack", &top.max_stack, 11765dbb6e81SWaiman Long "Set the maximum stack depth when parsing the callchain. " 11775dbb6e81SWaiman Long "Default: " __stringify(PERF_MAX_STACK_DEPTH)), 1178b21484f1SGreg Price OPT_CALLBACK(0, "ignore-callees", NULL, "regex", 1179b21484f1SGreg Price "ignore callees of these functions in call graphs", 1180b21484f1SGreg Price report_parse_ignore_callees_opt), 1181ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 1182ab81f3fdSArnaldo Carvalho de Melo "Show a column with the sum of periods"), 1183ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 1184ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these dsos"), 1185ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1186ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these comms"), 1187ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1188ab81f3fdSArnaldo Carvalho de Melo "only consider these symbols"), 118964c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, 119064c6f0c7SArnaldo Carvalho de Melo "Interleave source code with assembly code (default)"), 119164c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, 119264c6f0c7SArnaldo Carvalho de Melo "Display raw encoding of assembly instructions (default)"), 1193763122adSAvi Kivity OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, 1194763122adSAvi Kivity "Enable kernel symbol demangling"), 11950d3942dbSSukadev Bhattiprolu OPT_STRING(0, "objdump", &objdump_path, "path", 11960d3942dbSSukadev Bhattiprolu "objdump binary to use for disassembly and annotations"), 119764c6f0c7SArnaldo Carvalho de Melo OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", 119864c6f0c7SArnaldo Carvalho de Melo "Specify disassembler style (e.g. -M intel for intel syntax)"), 11992376c67aSArnaldo Carvalho de Melo OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), 1200fa5df943SNamhyung Kim OPT_CALLBACK(0, "percent-limit", &top, "percent", 1201fa5df943SNamhyung Kim "Don't show entries under that percent", parse_percent_limit), 120233db4568SNamhyung Kim OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", 120333db4568SNamhyung Kim "How to display percentage of filtered entries", parse_filter_percentage), 1204cf59002fSNamhyung Kim OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, 1205cf59002fSNamhyung Kim "width[,width...]", 1206cf59002fSNamhyung Kim "don't try to adjust column width, use these fixed values"), 12079d9cad76SKan Liang OPT_UINTEGER(0, "proc-map-timeout", &opts->proc_map_timeout, 12089d9cad76SKan Liang "per thread proc mmap processing timeout in ms"), 1209a18b027eSAndi Kleen OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack, 1210a18b027eSAndi Kleen "branch any", "sample any taken branches", 1211a18b027eSAndi Kleen parse_branch_stack), 1212a18b027eSAndi Kleen OPT_CALLBACK('j', "branch-filter", &opts->branch_stack, 1213a18b027eSAndi Kleen "branch filter mask", "branch stack filter modes", 1214a18b027eSAndi Kleen parse_branch_stack), 1215053a3989SNamhyung Kim OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, 1216053a3989SNamhyung Kim "Show raw trace event output (do not use print fmt or plugins)"), 1217c92fcfdeSNamhyung Kim OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy, 1218c92fcfdeSNamhyung Kim "Show entries in a hierarchy"), 121986470930SIngo Molnar OPT_END() 122086470930SIngo Molnar }; 1221be772842SArnaldo Carvalho de Melo const char * const top_usage[] = { 1222be772842SArnaldo Carvalho de Melo "perf top [<options>]", 1223be772842SArnaldo Carvalho de Melo NULL 1224be772842SArnaldo Carvalho de Melo }; 1225a635fc51SArnaldo Carvalho de Melo int status = hists__init(); 1226a635fc51SArnaldo Carvalho de Melo 1227a635fc51SArnaldo Carvalho de Melo if (status < 0) 1228a635fc51SArnaldo Carvalho de Melo return status; 122986470930SIngo Molnar 1230334fe7a3SNamhyung Kim top.evlist = perf_evlist__new(); 12318c3e10ebSArnaldo Carvalho de Melo if (top.evlist == NULL) 1232361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1233361c99a6SArnaldo Carvalho de Melo 1234eb853e80SJiri Olsa perf_config(perf_top_config, &top); 1235eb853e80SJiri Olsa 123686470930SIngo Molnar argc = parse_options(argc, argv, options, top_usage, 0); 123786470930SIngo Molnar if (argc) 123886470930SIngo Molnar usage_with_options(top_usage, options); 123986470930SIngo Molnar 124054f8f403SNamhyung Kim if (!top.evlist->nr_entries && 124154f8f403SNamhyung Kim perf_evlist__add_default(top.evlist) < 0) { 124254f8f403SNamhyung Kim pr_err("Not enough memory for event selector list\n"); 124354f8f403SNamhyung Kim goto out_delete_evlist; 124454f8f403SNamhyung Kim } 124554f8f403SNamhyung Kim 1246c92fcfdeSNamhyung Kim if (symbol_conf.report_hierarchy) { 1247c92fcfdeSNamhyung Kim /* disable incompatible options */ 1248c92fcfdeSNamhyung Kim symbol_conf.event_group = false; 1249c92fcfdeSNamhyung Kim symbol_conf.cumulate_callchain = false; 1250c92fcfdeSNamhyung Kim 1251c92fcfdeSNamhyung Kim if (field_order) { 1252c92fcfdeSNamhyung Kim pr_err("Error: --hierarchy and --fields options cannot be used together\n"); 1253c92fcfdeSNamhyung Kim parse_options_usage(top_usage, options, "fields", 0); 1254c92fcfdeSNamhyung Kim parse_options_usage(NULL, options, "hierarchy", 0); 1255c92fcfdeSNamhyung Kim goto out_delete_evlist; 1256c92fcfdeSNamhyung Kim } 1257c92fcfdeSNamhyung Kim } 1258c92fcfdeSNamhyung Kim 1259512ae1bdSNamhyung Kim sort__mode = SORT_MODE__TOP; 12603a5714f8SNamhyung Kim /* display thread wants entries to be collapsed in a different tree */ 12613a5714f8SNamhyung Kim sort__need_collapse = 1; 12623a5714f8SNamhyung Kim 12633ee60c3bSArnaldo Carvalho de Melo if (top.use_stdio) 12643ee60c3bSArnaldo Carvalho de Melo use_browser = 0; 12653ee60c3bSArnaldo Carvalho de Melo else if (top.use_tui) 12663ee60c3bSArnaldo Carvalho de Melo use_browser = 1; 12673ee60c3bSArnaldo Carvalho de Melo 12683ee60c3bSArnaldo Carvalho de Melo setup_browser(false); 12693ee60c3bSArnaldo Carvalho de Melo 127040184c46SNamhyung Kim if (setup_sorting(top.evlist) < 0) { 12716fe8c26dSNamhyung Kim if (sort_order) 12726fe8c26dSNamhyung Kim parse_options_usage(top_usage, options, "s", 1); 12736fe8c26dSNamhyung Kim if (field_order) 12746fe8c26dSNamhyung Kim parse_options_usage(sort_order ? NULL : top_usage, 12756fe8c26dSNamhyung Kim options, "fields", 0); 12766fe8c26dSNamhyung Kim goto out_delete_evlist; 12776fe8c26dSNamhyung Kim } 127822af969eSNamhyung Kim 1279602ad878SArnaldo Carvalho de Melo status = target__validate(target); 128016ad2ffbSNamhyung Kim if (status) { 1281602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1282ea432a8bSIngo Molnar ui__warning("%s\n", errbuf); 128316ad2ffbSNamhyung Kim } 12844bd0f2d2SNamhyung Kim 1285602ad878SArnaldo Carvalho de Melo status = target__parse_uid(target); 128616ad2ffbSNamhyung Kim if (status) { 128716ad2ffbSNamhyung Kim int saved_errno = errno; 128816ad2ffbSNamhyung Kim 1289602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1290ea432a8bSIngo Molnar ui__error("%s\n", errbuf); 129116ad2ffbSNamhyung Kim 129216ad2ffbSNamhyung Kim status = -saved_errno; 12930d37aa34SArnaldo Carvalho de Melo goto out_delete_evlist; 129416ad2ffbSNamhyung Kim } 12950d37aa34SArnaldo Carvalho de Melo 1296602ad878SArnaldo Carvalho de Melo if (target__none(target)) 12972376c67aSArnaldo Carvalho de Melo target->system_wide = true; 129810b47d54SArnaldo Carvalho de Melo 1299f8a5c0b2SArnaldo Carvalho de Melo if (perf_evlist__create_maps(top.evlist, target) < 0) { 1300f8a5c0b2SArnaldo Carvalho de Melo ui__error("Couldn't create thread/CPU maps: %s\n", 1301f8a5c0b2SArnaldo Carvalho de Melo errno == ENOENT ? "No such process" : strerror_r(errno, errbuf, sizeof(errbuf))); 1302f8a5c0b2SArnaldo Carvalho de Melo goto out_delete_evlist; 1303f8a5c0b2SArnaldo Carvalho de Melo } 13047e2ed097SArnaldo Carvalho de Melo 1305d04b35f8SArnaldo Carvalho de Melo symbol_conf.nr_events = top.evlist->nr_entries; 1306d04b35f8SArnaldo Carvalho de Melo 13078c3e10ebSArnaldo Carvalho de Melo if (top.delay_secs < 1) 13088c3e10ebSArnaldo Carvalho de Melo top.delay_secs = 1; 130986470930SIngo Molnar 1310b4006796SArnaldo Carvalho de Melo if (record_opts__config(opts)) { 13112376c67aSArnaldo Carvalho de Melo status = -EINVAL; 131203ad9747SArnaldo Carvalho de Melo goto out_delete_evlist; 131369aad6f1SArnaldo Carvalho de Melo } 131469aad6f1SArnaldo Carvalho de Melo 13150c21f736SArnaldo Carvalho de Melo top.sym_evsel = perf_evlist__first(top.evlist); 1316cc841580SArnaldo Carvalho de Melo 13171432ec34SNamhyung Kim if (!symbol_conf.use_callchain) { 13181432ec34SNamhyung Kim symbol_conf.cumulate_callchain = false; 13191432ec34SNamhyung Kim perf_hpp__cancel_cumulate(); 13201432ec34SNamhyung Kim } 13211432ec34SNamhyung Kim 1322792aeafaSNamhyung Kim if (symbol_conf.cumulate_callchain && !callchain_param.order_set) 1323792aeafaSNamhyung Kim callchain_param.order = ORDER_CALLER; 1324792aeafaSNamhyung Kim 1325ab81f3fdSArnaldo Carvalho de Melo symbol_conf.priv_size = sizeof(struct annotation); 132669aad6f1SArnaldo Carvalho de Melo 132769aad6f1SArnaldo Carvalho de Melo symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); 13280a7e6d1bSNamhyung Kim if (symbol__init(NULL) < 0) 132969aad6f1SArnaldo Carvalho de Melo return -1; 133069aad6f1SArnaldo Carvalho de Melo 133108e71542SNamhyung Kim sort__setup_elide(stdout); 1332ab81f3fdSArnaldo Carvalho de Melo 13331758af10SArnaldo Carvalho de Melo get_term_dimensions(&top.winsize); 13348c3e10ebSArnaldo Carvalho de Melo if (top.print_entries == 0) { 13351758af10SArnaldo Carvalho de Melo struct sigaction act = { 13361758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 13371758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 13381758af10SArnaldo Carvalho de Melo }; 13391758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(&top); 13401758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 13413b6ed988SArnaldo Carvalho de Melo } 13423b6ed988SArnaldo Carvalho de Melo 13431758af10SArnaldo Carvalho de Melo status = __cmd_top(&top); 1344806fb630SArnaldo Carvalho de Melo 13450d37aa34SArnaldo Carvalho de Melo out_delete_evlist: 13468c3e10ebSArnaldo Carvalho de Melo perf_evlist__delete(top.evlist); 134769aad6f1SArnaldo Carvalho de Melo 134869aad6f1SArnaldo Carvalho de Melo return status; 134986470930SIngo Molnar } 1350