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" 430d3942dbSSukadev Bhattiprolu #include "arch/common.h" 4486470930SIngo Molnar 458f28827aSFrederic Weisbecker #include "util/debug.h" 468f28827aSFrederic Weisbecker 4786470930SIngo Molnar #include <assert.h> 4831d68e7bSArnaldo Carvalho de Melo #include <elf.h> 4986470930SIngo Molnar #include <fcntl.h> 5086470930SIngo Molnar 5186470930SIngo Molnar #include <stdio.h> 52923c42c1SMike Galbraith #include <termios.h> 53923c42c1SMike Galbraith #include <unistd.h> 549486aa38SArnaldo Carvalho de Melo #include <inttypes.h> 5586470930SIngo Molnar 5686470930SIngo Molnar #include <errno.h> 5786470930SIngo Molnar #include <time.h> 5886470930SIngo Molnar #include <sched.h> 5986470930SIngo Molnar 6086470930SIngo Molnar #include <sys/syscall.h> 6186470930SIngo Molnar #include <sys/ioctl.h> 62a8fa4960SArnaldo Carvalho de Melo #include <poll.h> 6386470930SIngo Molnar #include <sys/prctl.h> 6486470930SIngo Molnar #include <sys/wait.h> 6586470930SIngo Molnar #include <sys/uio.h> 6631d68e7bSArnaldo Carvalho de Melo #include <sys/utsname.h> 6786470930SIngo Molnar #include <sys/mman.h> 6886470930SIngo Molnar 6986470930SIngo Molnar #include <linux/unistd.h> 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; 178ce6f4fabSArnaldo Carvalho de Melo struct symbol *sym; 17948c65bdaSNamhyung Kim int err = 0; 180ce6f4fabSArnaldo Carvalho de Melo 181ab81f3fdSArnaldo Carvalho de Melo if (he == NULL || he->ms.sym == NULL || 1821758af10SArnaldo Carvalho de Melo ((top->sym_filter_entry == NULL || 1831758af10SArnaldo Carvalho de Melo top->sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1)) 184923c42c1SMike Galbraith return; 185923c42c1SMike Galbraith 186ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 187ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 188ce6f4fabSArnaldo Carvalho de Melo 189ce6f4fabSArnaldo Carvalho de Melo if (pthread_mutex_trylock(¬es->lock)) 190923c42c1SMike Galbraith return; 191923c42c1SMike Galbraith 192ab81f3fdSArnaldo Carvalho de Melo ip = he->ms.map->map_ip(he->ms.map, ip); 19348c65bdaSNamhyung Kim 19448c65bdaSNamhyung Kim if (ui__has_annotation()) 195618afb29SArnaldo Carvalho de Melo err = hist_entry__inc_addr_samples(he, counter, ip); 196923c42c1SMike Galbraith 197ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 19831d68e7bSArnaldo Carvalho de Melo 1997c50391fSNamhyung Kim /* 2007c50391fSNamhyung Kim * This function is now called with he->hists->lock held. 2017c50391fSNamhyung Kim * Release it before going to sleep. 2027c50391fSNamhyung Kim */ 2037c50391fSNamhyung Kim pthread_mutex_unlock(&he->hists->lock); 2047c50391fSNamhyung Kim 20531d68e7bSArnaldo Carvalho de Melo if (err == -ERANGE && !he->ms.map->erange_warned) 20631d68e7bSArnaldo Carvalho de Melo ui__warn_map_erange(he->ms.map, sym, ip); 207b66d8c0cSArnaldo Carvalho de Melo else if (err == -ENOMEM) { 208b66d8c0cSArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 209b66d8c0cSArnaldo Carvalho de Melo sym->name); 210b66d8c0cSArnaldo Carvalho de Melo sleep(1); 211b66d8c0cSArnaldo Carvalho de Melo } 2127c50391fSNamhyung Kim 2137c50391fSNamhyung Kim pthread_mutex_lock(&he->hists->lock); 214923c42c1SMike Galbraith } 215923c42c1SMike Galbraith 2161758af10SArnaldo Carvalho de Melo static void perf_top__show_details(struct perf_top *top) 217923c42c1SMike Galbraith { 2181758af10SArnaldo Carvalho de Melo struct hist_entry *he = top->sym_filter_entry; 219ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 220923c42c1SMike Galbraith struct symbol *symbol; 22136532461SArnaldo Carvalho de Melo int more; 222923c42c1SMike Galbraith 223ab81f3fdSArnaldo Carvalho de Melo if (!he) 224923c42c1SMike Galbraith return; 225923c42c1SMike Galbraith 226ab81f3fdSArnaldo Carvalho de Melo symbol = he->ms.sym; 227ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(symbol); 228ce6f4fabSArnaldo Carvalho de Melo 229ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 230ce6f4fabSArnaldo Carvalho de Melo 231ce6f4fabSArnaldo Carvalho de Melo if (notes->src == NULL) 232ce6f4fabSArnaldo Carvalho de Melo goto out_unlock; 233923c42c1SMike Galbraith 2347289f83cSArnaldo Carvalho de Melo printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); 2351758af10SArnaldo Carvalho de Melo printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); 236923c42c1SMike Galbraith 237db8fd07aSNamhyung Kim more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, 2381758af10SArnaldo Carvalho de Melo 0, top->sym_pcnt_filter, top->print_entries, 4); 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); 24336532461SArnaldo Carvalho de Melo if (more != 0) 244923c42c1SMike Galbraith printf("%d lines not displayed, maybe increase display entries [e]\n", more); 245ce6f4fabSArnaldo Carvalho de Melo out_unlock: 246ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 247923c42c1SMike Galbraith } 24886470930SIngo Molnar 2491758af10SArnaldo Carvalho de Melo static void perf_top__print_sym_table(struct perf_top *top) 25086470930SIngo Molnar { 2518c3e10ebSArnaldo Carvalho de Melo char bf[160]; 2528c3e10ebSArnaldo Carvalho de Melo int printed = 0; 2531758af10SArnaldo Carvalho de Melo const int win_width = top->winsize.ws_col - 1; 25486470930SIngo Molnar 25586470930SIngo Molnar puts(CONSOLE_CLEAR); 25686470930SIngo Molnar 2571758af10SArnaldo Carvalho de Melo perf_top__header_snprintf(top, bf, sizeof(bf)); 2588c3e10ebSArnaldo Carvalho de Melo printf("%s\n", bf); 25986470930SIngo Molnar 2601758af10SArnaldo Carvalho de Melo perf_top__reset_sample_counters(top); 26186470930SIngo Molnar 2621a105f74SArnaldo Carvalho de Melo printf("%-*.*s\n", win_width, win_width, graph_dotted_line); 26386470930SIngo Molnar 2641758af10SArnaldo Carvalho de Melo if (top->sym_evsel->hists.stats.nr_lost_warned != 2651758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) { 2661758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_lost_warned = 2671758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]; 2687b27509fSArnaldo Carvalho de Melo color_fprintf(stdout, PERF_COLOR_RED, 2697b27509fSArnaldo Carvalho de Melo "WARNING: LOST %d chunks, Check IO/CPU overload", 2701758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_lost_warned); 271ab81f3fdSArnaldo Carvalho de Melo ++printed; 27293fc64f1SArnaldo Carvalho de Melo } 27393fc64f1SArnaldo Carvalho de Melo 2741758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 2751758af10SArnaldo Carvalho de Melo perf_top__show_details(top); 276923c42c1SMike Galbraith return; 277923c42c1SMike Galbraith } 278923c42c1SMike Galbraith 279701937bdSNamhyung Kim if (top->zero) { 280701937bdSNamhyung Kim hists__delete_entries(&top->sym_evsel->hists); 281701937bdSNamhyung Kim } else { 2823a5714f8SNamhyung Kim hists__decay_entries(&top->sym_evsel->hists, 2831758af10SArnaldo Carvalho de Melo top->hide_user_symbols, 2841758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols); 285701937bdSNamhyung Kim } 286701937bdSNamhyung Kim 287701937bdSNamhyung Kim hists__collapse_resort(&top->sym_evsel->hists, NULL); 288701937bdSNamhyung Kim hists__output_resort(&top->sym_evsel->hists); 289701937bdSNamhyung Kim 2901758af10SArnaldo Carvalho de Melo hists__output_recalc_col_len(&top->sym_evsel->hists, 291933cbb1cSNamhyung Kim top->print_entries - printed); 2921a105f74SArnaldo Carvalho de Melo putchar('\n'); 29341724e4cSJiri Olsa hists__fprintf(&top->sym_evsel->hists, false, 294fa5df943SNamhyung Kim top->print_entries - printed, win_width, 295fa5df943SNamhyung Kim top->min_percent, stdout); 29686470930SIngo Molnar } 29786470930SIngo Molnar 298923c42c1SMike Galbraith static void prompt_integer(int *target, const char *msg) 299923c42c1SMike Galbraith { 300923c42c1SMike Galbraith char *buf = malloc(0), *p; 301923c42c1SMike Galbraith size_t dummy = 0; 302923c42c1SMike Galbraith int tmp; 303923c42c1SMike Galbraith 304923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 305923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 306923c42c1SMike Galbraith return; 307923c42c1SMike Galbraith 308923c42c1SMike Galbraith p = strchr(buf, '\n'); 309923c42c1SMike Galbraith if (p) 310923c42c1SMike Galbraith *p = 0; 311923c42c1SMike Galbraith 312923c42c1SMike Galbraith p = buf; 313923c42c1SMike Galbraith while(*p) { 314923c42c1SMike Galbraith if (!isdigit(*p)) 315923c42c1SMike Galbraith goto out_free; 316923c42c1SMike Galbraith p++; 317923c42c1SMike Galbraith } 318923c42c1SMike Galbraith tmp = strtoul(buf, NULL, 10); 319923c42c1SMike Galbraith *target = tmp; 320923c42c1SMike Galbraith out_free: 321923c42c1SMike Galbraith free(buf); 322923c42c1SMike Galbraith } 323923c42c1SMike Galbraith 324923c42c1SMike Galbraith static void prompt_percent(int *target, const char *msg) 325923c42c1SMike Galbraith { 326923c42c1SMike Galbraith int tmp = 0; 327923c42c1SMike Galbraith 328923c42c1SMike Galbraith prompt_integer(&tmp, msg); 329923c42c1SMike Galbraith if (tmp >= 0 && tmp <= 100) 330923c42c1SMike Galbraith *target = tmp; 331923c42c1SMike Galbraith } 332923c42c1SMike Galbraith 3331758af10SArnaldo Carvalho de Melo static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) 334923c42c1SMike Galbraith { 335923c42c1SMike Galbraith char *buf = malloc(0), *p; 3361758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; 337ab81f3fdSArnaldo Carvalho de Melo struct rb_node *next; 338923c42c1SMike Galbraith size_t dummy = 0; 339923c42c1SMike Galbraith 340923c42c1SMike Galbraith /* zero counters of active symbol */ 341923c42c1SMike Galbraith if (syme) { 342923c42c1SMike Galbraith __zero_source_counters(syme); 3431758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 344923c42c1SMike Galbraith } 345923c42c1SMike Galbraith 346923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 347923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 348923c42c1SMike Galbraith goto out_free; 349923c42c1SMike Galbraith 350923c42c1SMike Galbraith p = strchr(buf, '\n'); 351923c42c1SMike Galbraith if (p) 352923c42c1SMike Galbraith *p = 0; 353923c42c1SMike Galbraith 3541758af10SArnaldo Carvalho de Melo next = rb_first(&top->sym_evsel->hists.entries); 355ab81f3fdSArnaldo Carvalho de Melo while (next) { 356ab81f3fdSArnaldo Carvalho de Melo n = rb_entry(next, struct hist_entry, rb_node); 357ab81f3fdSArnaldo Carvalho de Melo if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { 358ab81f3fdSArnaldo Carvalho de Melo found = n; 359923c42c1SMike Galbraith break; 360923c42c1SMike Galbraith } 361ab81f3fdSArnaldo Carvalho de Melo next = rb_next(&n->rb_node); 362923c42c1SMike Galbraith } 363923c42c1SMike Galbraith 364923c42c1SMike Galbraith if (!found) { 36566aeb6d5SKirill Smelkov fprintf(stderr, "Sorry, %s is not active.\n", buf); 366923c42c1SMike Galbraith sleep(1); 367923c42c1SMike Galbraith } else 3681758af10SArnaldo Carvalho de Melo perf_top__parse_source(top, found); 369923c42c1SMike Galbraith 370923c42c1SMike Galbraith out_free: 371923c42c1SMike Galbraith free(buf); 372923c42c1SMike Galbraith } 373923c42c1SMike Galbraith 3741758af10SArnaldo Carvalho de Melo static void perf_top__print_mapped_keys(struct perf_top *top) 375923c42c1SMike Galbraith { 376091bd2e9SMike Galbraith char *name = NULL; 377091bd2e9SMike Galbraith 3781758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 3791758af10SArnaldo Carvalho de Melo struct symbol *sym = top->sym_filter_entry->ms.sym; 380091bd2e9SMike Galbraith name = sym->name; 381091bd2e9SMike Galbraith } 382091bd2e9SMike Galbraith 383091bd2e9SMike Galbraith fprintf(stdout, "\nMapped keys:\n"); 3841758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); 3851758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); 386091bd2e9SMike Galbraith 3871758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) 3887289f83cSArnaldo Carvalho de Melo fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); 389091bd2e9SMike Galbraith 3901758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); 391091bd2e9SMike Galbraith 3921758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); 393091bd2e9SMike Galbraith fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); 394091bd2e9SMike Galbraith fprintf(stdout, "\t[S] stop annotation.\n"); 395091bd2e9SMike Galbraith 3968ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 3978ffcda17SArnaldo Carvalho de Melo "\t[K] hide kernel_symbols symbols. \t(%s)\n", 3981758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols ? "yes" : "no"); 3998ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4008ffcda17SArnaldo Carvalho de Melo "\t[U] hide user symbols. \t(%s)\n", 4011758af10SArnaldo Carvalho de Melo top->hide_user_symbols ? "yes" : "no"); 4021758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); 403091bd2e9SMike Galbraith fprintf(stdout, "\t[qQ] quit.\n"); 404091bd2e9SMike Galbraith } 405091bd2e9SMike Galbraith 4061758af10SArnaldo Carvalho de Melo static int perf_top__key_mapped(struct perf_top *top, int c) 407091bd2e9SMike Galbraith { 408091bd2e9SMike Galbraith switch (c) { 409091bd2e9SMike Galbraith case 'd': 410091bd2e9SMike Galbraith case 'e': 411091bd2e9SMike Galbraith case 'f': 412091bd2e9SMike Galbraith case 'z': 413091bd2e9SMike Galbraith case 'q': 414091bd2e9SMike Galbraith case 'Q': 4158ffcda17SArnaldo Carvalho de Melo case 'K': 4168ffcda17SArnaldo Carvalho de Melo case 'U': 4176cff0e8dSKirill Smelkov case 'F': 4186cff0e8dSKirill Smelkov case 's': 4196cff0e8dSKirill Smelkov case 'S': 420091bd2e9SMike Galbraith return 1; 421091bd2e9SMike Galbraith case 'E': 4221758af10SArnaldo Carvalho de Melo return top->evlist->nr_entries > 1 ? 1 : 0; 42383a0944fSIngo Molnar default: 42483a0944fSIngo Molnar break; 425091bd2e9SMike Galbraith } 426091bd2e9SMike Galbraith 427091bd2e9SMike Galbraith return 0; 428923c42c1SMike Galbraith } 429923c42c1SMike Galbraith 43011859e82SArnaldo Carvalho de Melo static bool perf_top__handle_keypress(struct perf_top *top, int c) 431923c42c1SMike Galbraith { 43211859e82SArnaldo Carvalho de Melo bool ret = true; 43311859e82SArnaldo Carvalho de Melo 4341758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) { 435091bd2e9SMike Galbraith struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 4363969cc09SJiri Olsa struct termios save; 437091bd2e9SMike Galbraith 4381758af10SArnaldo Carvalho de Melo perf_top__print_mapped_keys(top); 439091bd2e9SMike Galbraith fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); 440091bd2e9SMike Galbraith fflush(stdout); 441091bd2e9SMike Galbraith 4423969cc09SJiri Olsa set_term_quiet_input(&save); 443091bd2e9SMike Galbraith 444091bd2e9SMike Galbraith poll(&stdin_poll, 1, -1); 445091bd2e9SMike Galbraith c = getc(stdin); 446091bd2e9SMike Galbraith 447091bd2e9SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 4481758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) 44911859e82SArnaldo Carvalho de Melo return ret; 450091bd2e9SMike Galbraith } 451091bd2e9SMike Galbraith 452923c42c1SMike Galbraith switch (c) { 453923c42c1SMike Galbraith case 'd': 4541758af10SArnaldo Carvalho de Melo prompt_integer(&top->delay_secs, "Enter display delay"); 4551758af10SArnaldo Carvalho de Melo if (top->delay_secs < 1) 4561758af10SArnaldo Carvalho de Melo top->delay_secs = 1; 457923c42c1SMike Galbraith break; 458923c42c1SMike Galbraith case 'e': 4591758af10SArnaldo Carvalho de Melo prompt_integer(&top->print_entries, "Enter display entries (lines)"); 4601758af10SArnaldo Carvalho de Melo if (top->print_entries == 0) { 4611758af10SArnaldo Carvalho de Melo struct sigaction act = { 4621758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 4631758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 4641758af10SArnaldo Carvalho de Melo }; 4651758af10SArnaldo Carvalho de Melo perf_top__sig_winch(SIGWINCH, NULL, top); 4661758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 467509605dbSStephane Eranian } else { 4683b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, SIG_DFL); 469509605dbSStephane Eranian } 470923c42c1SMike Galbraith break; 471923c42c1SMike Galbraith case 'E': 4721758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) { 473ce2d17caSAkihiro Nagai /* Select 0 as the default event: */ 474ce2d17caSAkihiro Nagai int counter = 0; 475ce2d17caSAkihiro Nagai 476923c42c1SMike Galbraith fprintf(stderr, "\nAvailable events:"); 47769aad6f1SArnaldo Carvalho de Melo 4780050f7aaSArnaldo Carvalho de Melo evlist__for_each(top->evlist, top->sym_evsel) 4797289f83cSArnaldo Carvalho de Melo fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); 480923c42c1SMike Galbraith 481ec52d976SArnaldo Carvalho de Melo prompt_integer(&counter, "Enter details event counter"); 482923c42c1SMike Galbraith 4831758af10SArnaldo Carvalho de Melo if (counter >= top->evlist->nr_entries) { 4840c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 4857289f83cSArnaldo Carvalho de Melo fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); 486923c42c1SMike Galbraith sleep(1); 48769aad6f1SArnaldo Carvalho de Melo break; 488923c42c1SMike Galbraith } 4890050f7aaSArnaldo Carvalho de Melo evlist__for_each(top->evlist, top->sym_evsel) 4901758af10SArnaldo Carvalho de Melo if (top->sym_evsel->idx == counter) 49169aad6f1SArnaldo Carvalho de Melo break; 492ec52d976SArnaldo Carvalho de Melo } else 4930c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 494923c42c1SMike Galbraith break; 495923c42c1SMike Galbraith case 'f': 4961758af10SArnaldo Carvalho de Melo prompt_integer(&top->count_filter, "Enter display event count filter"); 497923c42c1SMike Galbraith break; 498923c42c1SMike Galbraith case 'F': 4991758af10SArnaldo Carvalho de Melo prompt_percent(&top->sym_pcnt_filter, 5001758af10SArnaldo Carvalho de Melo "Enter details display event filter (percent)"); 501923c42c1SMike Galbraith break; 5028ffcda17SArnaldo Carvalho de Melo case 'K': 5031758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols = !top->hide_kernel_symbols; 5048ffcda17SArnaldo Carvalho de Melo break; 505923c42c1SMike Galbraith case 'q': 506923c42c1SMike Galbraith case 'Q': 507923c42c1SMike Galbraith printf("exiting.\n"); 5081758af10SArnaldo Carvalho de Melo if (top->dump_symtab) 5091758af10SArnaldo Carvalho de Melo perf_session__fprintf_dsos(top->session, stderr); 51011859e82SArnaldo Carvalho de Melo ret = false; 51111859e82SArnaldo Carvalho de Melo break; 512923c42c1SMike Galbraith case 's': 5131758af10SArnaldo Carvalho de Melo perf_top__prompt_symbol(top, "Enter details symbol"); 514923c42c1SMike Galbraith break; 515923c42c1SMike Galbraith case 'S': 5161758af10SArnaldo Carvalho de Melo if (!top->sym_filter_entry) 517923c42c1SMike Galbraith break; 518923c42c1SMike Galbraith else { 5191758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry; 520923c42c1SMike Galbraith 5211758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 522923c42c1SMike Galbraith __zero_source_counters(syme); 523923c42c1SMike Galbraith } 524923c42c1SMike Galbraith break; 5258ffcda17SArnaldo Carvalho de Melo case 'U': 5261758af10SArnaldo Carvalho de Melo top->hide_user_symbols = !top->hide_user_symbols; 5278ffcda17SArnaldo Carvalho de Melo break; 528923c42c1SMike Galbraith case 'z': 5291758af10SArnaldo Carvalho de Melo top->zero = !top->zero; 530923c42c1SMike Galbraith break; 53183a0944fSIngo Molnar default: 53283a0944fSIngo Molnar break; 533923c42c1SMike Galbraith } 53411859e82SArnaldo Carvalho de Melo 53511859e82SArnaldo Carvalho de Melo return ret; 536923c42c1SMike Galbraith } 537923c42c1SMike Galbraith 538ab81f3fdSArnaldo Carvalho de Melo static void perf_top__sort_new_samples(void *arg) 539ab81f3fdSArnaldo Carvalho de Melo { 540ab81f3fdSArnaldo Carvalho de Melo struct perf_top *t = arg; 541ab81f3fdSArnaldo Carvalho de Melo perf_top__reset_sample_counters(t); 542ab81f3fdSArnaldo Carvalho de Melo 543ab81f3fdSArnaldo Carvalho de Melo if (t->evlist->selected != NULL) 544ab81f3fdSArnaldo Carvalho de Melo t->sym_evsel = t->evlist->selected; 545ab81f3fdSArnaldo Carvalho de Melo 546701937bdSNamhyung Kim if (t->zero) { 547701937bdSNamhyung Kim hists__delete_entries(&t->sym_evsel->hists); 548701937bdSNamhyung Kim } else { 5493a5714f8SNamhyung Kim hists__decay_entries(&t->sym_evsel->hists, 5501758af10SArnaldo Carvalho de Melo t->hide_user_symbols, 5511758af10SArnaldo Carvalho de Melo t->hide_kernel_symbols); 552ab81f3fdSArnaldo Carvalho de Melo } 553ab81f3fdSArnaldo Carvalho de Melo 554701937bdSNamhyung Kim hists__collapse_resort(&t->sym_evsel->hists, NULL); 555701937bdSNamhyung Kim hists__output_resort(&t->sym_evsel->hists); 556701937bdSNamhyung Kim } 557701937bdSNamhyung Kim 5581758af10SArnaldo Carvalho de Melo static void *display_thread_tui(void *arg) 559c0443df1SArnaldo Carvalho de Melo { 5600d37aa34SArnaldo Carvalho de Melo struct perf_evsel *pos; 5611758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 562ab81f3fdSArnaldo Carvalho de Melo const char *help = "For a higher level overview, try: perf top --sort comm,dso"; 5639783adf7SNamhyung Kim struct hist_browser_timer hbt = { 5649783adf7SNamhyung Kim .timer = perf_top__sort_new_samples, 5659783adf7SNamhyung Kim .arg = top, 5669783adf7SNamhyung Kim .refresh = top->delay_secs, 5679783adf7SNamhyung Kim }; 568ab81f3fdSArnaldo Carvalho de Melo 5691758af10SArnaldo Carvalho de Melo perf_top__sort_new_samples(top); 5700d37aa34SArnaldo Carvalho de Melo 5710d37aa34SArnaldo Carvalho de Melo /* 5720d37aa34SArnaldo Carvalho de Melo * Initialize the uid_filter_str, in the future the TUI will allow 5730d37aa34SArnaldo Carvalho de Melo * Zooming in/out UIDs. For now juse use whatever the user passed 5740d37aa34SArnaldo Carvalho de Melo * via --uid. 5750d37aa34SArnaldo Carvalho de Melo */ 5760050f7aaSArnaldo Carvalho de Melo evlist__for_each(top->evlist, pos) 5772376c67aSArnaldo Carvalho de Melo pos->hists.uid_filter_str = top->record_opts.target.uid_str; 5780d37aa34SArnaldo Carvalho de Melo 579fa5df943SNamhyung Kim perf_evlist__tui_browse_hists(top->evlist, help, &hbt, top->min_percent, 58068d80758SNamhyung Kim &top->session->header.env); 581ab81f3fdSArnaldo Carvalho de Melo 58211859e82SArnaldo Carvalho de Melo done = 1; 583c0443df1SArnaldo Carvalho de Melo return NULL; 584c0443df1SArnaldo Carvalho de Melo } 585c0443df1SArnaldo Carvalho de Melo 5864a1a9971SJiri Olsa static void display_sig(int sig __maybe_unused) 5874a1a9971SJiri Olsa { 5884a1a9971SJiri Olsa done = 1; 5894a1a9971SJiri Olsa } 5904a1a9971SJiri Olsa 5914a1a9971SJiri Olsa static void display_setup_sig(void) 5924a1a9971SJiri Olsa { 5934a1a9971SJiri Olsa signal(SIGSEGV, display_sig); 5944a1a9971SJiri Olsa signal(SIGFPE, display_sig); 5954a1a9971SJiri Olsa signal(SIGINT, display_sig); 5964a1a9971SJiri Olsa signal(SIGQUIT, display_sig); 5974a1a9971SJiri Olsa signal(SIGTERM, display_sig); 5984a1a9971SJiri Olsa } 5994a1a9971SJiri Olsa 6001758af10SArnaldo Carvalho de Melo static void *display_thread(void *arg) 60186470930SIngo Molnar { 60286470930SIngo Molnar struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 6039398c484SJiri Olsa struct termios save; 6041758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 605923c42c1SMike Galbraith int delay_msecs, c; 60686470930SIngo Molnar 6074a1a9971SJiri Olsa display_setup_sig(); 6083af6e338SArnaldo Carvalho de Melo pthread__unblock_sigwinch(); 609923c42c1SMike Galbraith repeat: 6101758af10SArnaldo Carvalho de Melo delay_msecs = top->delay_secs * 1000; 6119398c484SJiri Olsa set_term_quiet_input(&save); 612923c42c1SMike Galbraith /* trash return*/ 613923c42c1SMike Galbraith getc(stdin); 61486470930SIngo Molnar 61511859e82SArnaldo Carvalho de Melo while (!done) { 6161758af10SArnaldo Carvalho de Melo perf_top__print_sym_table(top); 6173af6e338SArnaldo Carvalho de Melo /* 6183af6e338SArnaldo Carvalho de Melo * Either timeout expired or we got an EINTR due to SIGWINCH, 6193af6e338SArnaldo Carvalho de Melo * refresh screen in both cases. 6203af6e338SArnaldo Carvalho de Melo */ 6213af6e338SArnaldo Carvalho de Melo switch (poll(&stdin_poll, 1, delay_msecs)) { 6223af6e338SArnaldo Carvalho de Melo case 0: 6233af6e338SArnaldo Carvalho de Melo continue; 6243af6e338SArnaldo Carvalho de Melo case -1: 6253af6e338SArnaldo Carvalho de Melo if (errno == EINTR) 6263af6e338SArnaldo Carvalho de Melo continue; 6273af6e338SArnaldo Carvalho de Melo /* Fall trhu */ 6283af6e338SArnaldo Carvalho de Melo default: 629923c42c1SMike Galbraith c = getc(stdin); 630923c42c1SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 631923c42c1SMike Galbraith 63211859e82SArnaldo Carvalho de Melo if (perf_top__handle_keypress(top, c)) 633923c42c1SMike Galbraith goto repeat; 63411859e82SArnaldo Carvalho de Melo done = 1; 63511859e82SArnaldo Carvalho de Melo } 63611859e82SArnaldo Carvalho de Melo } 63786470930SIngo Molnar 6384a1a9971SJiri Olsa tcsetattr(0, TCSAFLUSH, &save); 63986470930SIngo Molnar return NULL; 64086470930SIngo Molnar } 64186470930SIngo Molnar 642e7110b9fSArnaldo Carvalho de Melo static int symbol_filter(struct map *map, struct symbol *sym) 64386470930SIngo Molnar { 64486470930SIngo Molnar const char *name = sym->name; 64586470930SIngo Molnar 646e7110b9fSArnaldo Carvalho de Melo if (!map->dso->kernel) 647e7110b9fSArnaldo Carvalho de Melo return 0; 6483a3393efSAnton Blanchard /* 6493a3393efSAnton Blanchard * ppc64 uses function descriptors and appends a '.' to the 6503a3393efSAnton Blanchard * start of every instruction address. Remove it. 6513a3393efSAnton Blanchard */ 6523a3393efSAnton Blanchard if (name[0] == '.') 6533a3393efSAnton Blanchard name++; 6543a3393efSAnton Blanchard 65586470930SIngo Molnar if (!strcmp(name, "_text") || 65686470930SIngo Molnar !strcmp(name, "_etext") || 65786470930SIngo Molnar !strcmp(name, "_sinittext") || 65886470930SIngo Molnar !strncmp("init_module", name, 11) || 65986470930SIngo Molnar !strncmp("cleanup_module", name, 14) || 66086470930SIngo Molnar strstr(name, "_text_start") || 66186470930SIngo Molnar strstr(name, "_text_end")) 66286470930SIngo Molnar return 1; 66386470930SIngo Molnar 66482d1deb0SDavid Ahern if (symbol__is_idle(sym)) 665171b3be9SArnaldo Carvalho de Melo sym->ignore = true; 66686470930SIngo Molnar 66786470930SIngo Molnar return 0; 66886470930SIngo Molnar } 66986470930SIngo Molnar 6707c50391fSNamhyung Kim static int hist_iter__top_callback(struct hist_entry_iter *iter, 6717c50391fSNamhyung Kim struct addr_location *al, bool single, 6727c50391fSNamhyung Kim void *arg) 6737c50391fSNamhyung Kim { 6747c50391fSNamhyung Kim struct perf_top *top = arg; 6757c50391fSNamhyung Kim struct hist_entry *he = iter->he; 6767c50391fSNamhyung Kim struct perf_evsel *evsel = iter->evsel; 6777c50391fSNamhyung Kim 6787c50391fSNamhyung Kim if (sort__has_sym && single) { 6797c50391fSNamhyung Kim u64 ip = al->addr; 6807c50391fSNamhyung Kim 6817c50391fSNamhyung Kim if (al->map) 6827c50391fSNamhyung Kim ip = al->map->unmap_ip(al->map, ip); 6837c50391fSNamhyung Kim 6847c50391fSNamhyung Kim perf_top__record_precise_ip(top, he, evsel->idx, ip); 6857c50391fSNamhyung Kim } 6867c50391fSNamhyung Kim 6877c50391fSNamhyung Kim return 0; 6887c50391fSNamhyung Kim } 6897c50391fSNamhyung Kim 6901758af10SArnaldo Carvalho de Melo static void perf_event__process_sample(struct perf_tool *tool, 6911758af10SArnaldo Carvalho de Melo const union perf_event *event, 6927b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel, 6938d50e5b4SArnaldo Carvalho de Melo struct perf_sample *sample, 694743eb868SArnaldo Carvalho de Melo struct machine *machine) 69586470930SIngo Molnar { 6961758af10SArnaldo Carvalho de Melo struct perf_top *top = container_of(tool, struct perf_top, tool); 6971ed091c4SArnaldo Carvalho de Melo struct addr_location al; 69819d4ac3cSArnaldo Carvalho de Melo int err; 6995b2bb75aSArnaldo Carvalho de Melo 70023346f21SArnaldo Carvalho de Melo if (!machine && perf_guest) { 7016b118e92SDavid Ahern static struct intlist *seen; 7026b118e92SDavid Ahern 7036b118e92SDavid Ahern if (!seen) 704ffe0fb76SArnaldo Carvalho de Melo seen = intlist__new(NULL); 7056b118e92SDavid Ahern 706ef89325fSAdrian Hunter if (!intlist__has_entry(seen, sample->pid)) { 707a1645ce1SZhang, Yanmin pr_err("Can't find guest [%d]'s kernel information\n", 708ef89325fSAdrian Hunter sample->pid); 709ef89325fSAdrian Hunter intlist__add(seen, sample->pid); 7106b118e92SDavid Ahern } 711a1645ce1SZhang, Yanmin return; 712a1645ce1SZhang, Yanmin } 713a1645ce1SZhang, Yanmin 7140c095715SJoerg Roedel if (!machine) { 71511859e82SArnaldo Carvalho de Melo pr_err("%u unprocessable samples recorded.\r", 71628a6b6aaSArnaldo Carvalho de Melo top->session->stats.nr_unprocessable_samples++); 7170c095715SJoerg Roedel return; 7180c095715SJoerg Roedel } 7190c095715SJoerg Roedel 7208115d60cSArnaldo Carvalho de Melo if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) 7211758af10SArnaldo Carvalho de Melo top->exact_samples++; 7221676b8a0SPeter Zijlstra 72333db4568SNamhyung Kim if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) 7241ed091c4SArnaldo Carvalho de Melo return; 72586470930SIngo Molnar 7261758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && 7275f6f5580SArnaldo Carvalho de Melo symbol_conf.kptr_restrict && 7285f6f5580SArnaldo Carvalho de Melo al.cpumode == PERF_RECORD_MISC_KERNEL) { 7295f6f5580SArnaldo Carvalho de Melo ui__warning( 7305f6f5580SArnaldo Carvalho de Melo "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" 7315f6f5580SArnaldo Carvalho de Melo "Check /proc/sys/kernel/kptr_restrict.\n\n" 7325f6f5580SArnaldo Carvalho de Melo "Kernel%s samples will not be resolved.\n", 7335f6f5580SArnaldo Carvalho de Melo !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? 7345f6f5580SArnaldo Carvalho de Melo " modules" : ""); 7355f6f5580SArnaldo Carvalho de Melo if (use_browser <= 0) 7365f6f5580SArnaldo Carvalho de Melo sleep(5); 7371758af10SArnaldo Carvalho de Melo top->kptr_restrict_warned = true; 7385f6f5580SArnaldo Carvalho de Melo } 7395f6f5580SArnaldo Carvalho de Melo 74072b8fa17SArnaldo Carvalho de Melo if (al.sym == NULL) { 741e4a338d0SArnaldo Carvalho de Melo const char *msg = "Kernel samples will not be resolved.\n"; 74272b8fa17SArnaldo Carvalho de Melo /* 74372b8fa17SArnaldo Carvalho de Melo * As we do lazy loading of symtabs we only will know if the 74472b8fa17SArnaldo Carvalho de Melo * specified vmlinux file is invalid when we actually have a 74572b8fa17SArnaldo Carvalho de Melo * hit in kernel space and then try to load it. So if we get 74672b8fa17SArnaldo Carvalho de Melo * here and there are _no_ symbols in the DSO backing the 74772b8fa17SArnaldo Carvalho de Melo * kernel map, bail out. 74872b8fa17SArnaldo Carvalho de Melo * 74972b8fa17SArnaldo Carvalho de Melo * We may never get here, for instance, if we use -K/ 75072b8fa17SArnaldo Carvalho de Melo * --hide-kernel-symbols, even if the user specifies an 75172b8fa17SArnaldo Carvalho de Melo * invalid --vmlinux ;-) 75272b8fa17SArnaldo Carvalho de Melo */ 7531758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && !top->vmlinux_warned && 754e4a338d0SArnaldo Carvalho de Melo al.map == machine->vmlinux_maps[MAP__FUNCTION] && 75572b8fa17SArnaldo Carvalho de Melo RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { 756e4a338d0SArnaldo Carvalho de Melo if (symbol_conf.vmlinux_name) { 757e4a338d0SArnaldo Carvalho de Melo ui__warning("The %s file can't be used.\n%s", 758e4a338d0SArnaldo Carvalho de Melo symbol_conf.vmlinux_name, msg); 759e4a338d0SArnaldo Carvalho de Melo } else { 760e4a338d0SArnaldo Carvalho de Melo ui__warning("A vmlinux file was not found.\n%s", 761e4a338d0SArnaldo Carvalho de Melo msg); 762e4a338d0SArnaldo Carvalho de Melo } 763e4a338d0SArnaldo Carvalho de Melo 764e4a338d0SArnaldo Carvalho de Melo if (use_browser <= 0) 765e4a338d0SArnaldo Carvalho de Melo sleep(5); 7661758af10SArnaldo Carvalho de Melo top->vmlinux_warned = true; 76772b8fa17SArnaldo Carvalho de Melo } 76872b8fa17SArnaldo Carvalho de Melo } 76972b8fa17SArnaldo Carvalho de Melo 770ab81f3fdSArnaldo Carvalho de Melo if (al.sym == NULL || !al.sym->ignore) { 7717c50391fSNamhyung Kim struct hist_entry_iter iter = { 7727c50391fSNamhyung Kim .add_entry_cb = hist_iter__top_callback, 7737c50391fSNamhyung Kim }; 77470db7533SArnaldo Carvalho de Melo 7757c50391fSNamhyung Kim if (symbol_conf.cumulate_callchain) 7767c50391fSNamhyung Kim iter.ops = &hist_iter_cumulative; 7777c50391fSNamhyung Kim else 7787c50391fSNamhyung Kim iter.ops = &hist_iter_normal; 77919d4ac3cSArnaldo Carvalho de Melo 7807c50391fSNamhyung Kim pthread_mutex_lock(&evsel->hists.lock); 7817c50391fSNamhyung Kim 7827c50391fSNamhyung Kim err = hist_entry_iter__add(&iter, &al, evsel, sample, 7837c50391fSNamhyung Kim top->max_stack, top); 7847c50391fSNamhyung Kim if (err < 0) 785ab81f3fdSArnaldo Carvalho de Melo pr_err("Problem incrementing symbol period, skipping event\n"); 786ab81f3fdSArnaldo Carvalho de Melo 7877c50391fSNamhyung Kim pthread_mutex_unlock(&evsel->hists.lock); 7885807806aSArnaldo Carvalho de Melo } 789ab81f3fdSArnaldo Carvalho de Melo 790ab81f3fdSArnaldo Carvalho de Melo return; 79186470930SIngo Molnar } 79286470930SIngo Molnar 7931758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read_idx(struct perf_top *top, int idx) 79486470930SIngo Molnar { 7958d50e5b4SArnaldo Carvalho de Melo struct perf_sample sample; 7967b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel; 7971758af10SArnaldo Carvalho de Melo struct perf_session *session = top->session; 7988115d60cSArnaldo Carvalho de Melo union perf_event *event; 799743eb868SArnaldo Carvalho de Melo struct machine *machine; 800743eb868SArnaldo Carvalho de Melo u8 origin; 8015538becaSFrederic Weisbecker int ret; 80286470930SIngo Molnar 8031758af10SArnaldo Carvalho de Melo while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { 8040807d2d8SArnaldo Carvalho de Melo ret = perf_evlist__parse_sample(top->evlist, event, &sample); 8055538becaSFrederic Weisbecker if (ret) { 8065538becaSFrederic Weisbecker pr_err("Can't parse sample, err = %d\n", ret); 8078e50d384SZhouyi Zhou goto next_event; 8085538becaSFrederic Weisbecker } 80904391debSArnaldo Carvalho de Melo 8101758af10SArnaldo Carvalho de Melo evsel = perf_evlist__id2evsel(session->evlist, sample.id); 8117b27509fSArnaldo Carvalho de Melo assert(evsel != NULL); 8127b27509fSArnaldo Carvalho de Melo 813743eb868SArnaldo Carvalho de Melo origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 814743eb868SArnaldo Carvalho de Melo 8155b2bb75aSArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) 8161758af10SArnaldo Carvalho de Melo ++top->samples; 817743eb868SArnaldo Carvalho de Melo 818743eb868SArnaldo Carvalho de Melo switch (origin) { 819743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_USER: 8201758af10SArnaldo Carvalho de Melo ++top->us_samples; 8211758af10SArnaldo Carvalho de Melo if (top->hide_user_symbols) 8228e50d384SZhouyi Zhou goto next_event; 82334ba5122SArnaldo Carvalho de Melo machine = &session->machines.host; 824743eb868SArnaldo Carvalho de Melo break; 825743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_KERNEL: 8261758af10SArnaldo Carvalho de Melo ++top->kernel_samples; 8271758af10SArnaldo Carvalho de Melo if (top->hide_kernel_symbols) 8288e50d384SZhouyi Zhou goto next_event; 82934ba5122SArnaldo Carvalho de Melo machine = &session->machines.host; 830743eb868SArnaldo Carvalho de Melo break; 831743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_KERNEL: 8321758af10SArnaldo Carvalho de Melo ++top->guest_kernel_samples; 833ef89325fSAdrian Hunter machine = perf_session__find_machine(session, 834ef89325fSAdrian Hunter sample.pid); 835743eb868SArnaldo Carvalho de Melo break; 836743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_USER: 8371758af10SArnaldo Carvalho de Melo ++top->guest_us_samples; 838743eb868SArnaldo Carvalho de Melo /* 839743eb868SArnaldo Carvalho de Melo * TODO: we don't process guest user from host side 840743eb868SArnaldo Carvalho de Melo * except simple counting. 841743eb868SArnaldo Carvalho de Melo */ 842743eb868SArnaldo Carvalho de Melo /* Fall thru */ 843743eb868SArnaldo Carvalho de Melo default: 8448e50d384SZhouyi Zhou goto next_event; 845743eb868SArnaldo Carvalho de Melo } 846743eb868SArnaldo Carvalho de Melo 847743eb868SArnaldo Carvalho de Melo 8481758af10SArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) { 8491758af10SArnaldo Carvalho de Melo perf_event__process_sample(&top->tool, event, evsel, 8501758af10SArnaldo Carvalho de Melo &sample, machine); 8511758af10SArnaldo Carvalho de Melo } else if (event->header.type < PERF_RECORD_MAX) { 8527b27509fSArnaldo Carvalho de Melo hists__inc_nr_events(&evsel->hists, event->header.type); 853162f0befSFrederic Weisbecker machine__process_event(machine, event, &sample); 8547b27509fSArnaldo Carvalho de Melo } else 85528a6b6aaSArnaldo Carvalho de Melo ++session->stats.nr_unknown_events; 8568e50d384SZhouyi Zhou next_event: 8578e50d384SZhouyi Zhou perf_evlist__mmap_consume(top->evlist, idx); 85886470930SIngo Molnar } 85986470930SIngo Molnar } 86086470930SIngo Molnar 8611758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read(struct perf_top *top) 8622f01190aSFrederic Weisbecker { 86370db7533SArnaldo Carvalho de Melo int i; 8642f01190aSFrederic Weisbecker 8651758af10SArnaldo Carvalho de Melo for (i = 0; i < top->evlist->nr_mmaps; i++) 8661758af10SArnaldo Carvalho de Melo perf_top__mmap_read_idx(top, i); 8672f01190aSFrederic Weisbecker } 8682f01190aSFrederic Weisbecker 86911859e82SArnaldo Carvalho de Melo static int perf_top__start_counters(struct perf_top *top) 87072cb7013SArnaldo Carvalho de Melo { 87156e52e85SArnaldo Carvalho de Melo char msg[512]; 8726a4bb04cSJiri Olsa struct perf_evsel *counter; 8731758af10SArnaldo Carvalho de Melo struct perf_evlist *evlist = top->evlist; 874b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 875727ab04eSArnaldo Carvalho de Melo 8762376c67aSArnaldo Carvalho de Melo perf_evlist__config(evlist, opts); 87772cb7013SArnaldo Carvalho de Melo 8780050f7aaSArnaldo Carvalho de Melo evlist__for_each(evlist, counter) { 87972cb7013SArnaldo Carvalho de Melo try_again: 8801758af10SArnaldo Carvalho de Melo if (perf_evsel__open(counter, top->evlist->cpus, 8816a4bb04cSJiri Olsa top->evlist->threads) < 0) { 88256e52e85SArnaldo Carvalho de Melo if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { 88372cb7013SArnaldo Carvalho de Melo if (verbose) 884c0a54341SArnaldo Carvalho de Melo ui__warning("%s\n", msg); 88572cb7013SArnaldo Carvalho de Melo goto try_again; 88672cb7013SArnaldo Carvalho de Melo } 887c286c419SArnaldo Carvalho de Melo 88856e52e85SArnaldo Carvalho de Melo perf_evsel__open_strerror(counter, &opts->target, 88956e52e85SArnaldo Carvalho de Melo errno, msg, sizeof(msg)); 89056e52e85SArnaldo Carvalho de Melo ui__error("%s\n", msg); 891c286c419SArnaldo Carvalho de Melo goto out_err; 89272cb7013SArnaldo Carvalho de Melo } 89372cb7013SArnaldo Carvalho de Melo } 89470db7533SArnaldo Carvalho de Melo 8952376c67aSArnaldo Carvalho de Melo if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { 8963780f488SNamhyung Kim ui__error("Failed to mmap with %d (%s)\n", 897809adea6SMasami Hiramatsu errno, strerror_r(errno, msg, sizeof(msg))); 898c286c419SArnaldo Carvalho de Melo goto out_err; 899c286c419SArnaldo Carvalho de Melo } 900c286c419SArnaldo Carvalho de Melo 90111859e82SArnaldo Carvalho de Melo return 0; 902c286c419SArnaldo Carvalho de Melo 903c286c419SArnaldo Carvalho de Melo out_err: 90411859e82SArnaldo Carvalho de Melo return -1; 90572cb7013SArnaldo Carvalho de Melo } 90672cb7013SArnaldo Carvalho de Melo 9078f0f684bSNamhyung Kim static int perf_top__setup_sample_type(struct perf_top *top __maybe_unused) 90819d4ac3cSArnaldo Carvalho de Melo { 9098f0f684bSNamhyung Kim if (!sort__has_sym) { 91019d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) { 9113780f488SNamhyung Kim ui__error("Selected -g but \"sym\" not present in --sort/-s."); 91219d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 91319d4ac3cSArnaldo Carvalho de Melo } 9142376c67aSArnaldo Carvalho de Melo } else if (callchain_param.mode != CHAIN_NONE) { 91519d4ac3cSArnaldo Carvalho de Melo if (callchain_register_param(&callchain_param) < 0) { 9163780f488SNamhyung Kim ui__error("Can't register callchain params.\n"); 91719d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 91819d4ac3cSArnaldo Carvalho de Melo } 91919d4ac3cSArnaldo Carvalho de Melo } 92019d4ac3cSArnaldo Carvalho de Melo 92119d4ac3cSArnaldo Carvalho de Melo return 0; 92219d4ac3cSArnaldo Carvalho de Melo } 92319d4ac3cSArnaldo Carvalho de Melo 9241758af10SArnaldo Carvalho de Melo static int __cmd_top(struct perf_top *top) 925716c69feSIngo Molnar { 926b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 927716c69feSIngo Molnar pthread_t thread; 92819d4ac3cSArnaldo Carvalho de Melo int ret; 929f5fc1412SJiri Olsa 9306a4d98d7SJiri Olsa top->session = perf_session__new(NULL, false, NULL); 9311758af10SArnaldo Carvalho de Melo if (top->session == NULL) 93252e02834STaeung Song return -1; 933716c69feSIngo Molnar 93436035f78SAdrian Hunter machines__set_symbol_filter(&top->session->machines, symbol_filter); 93536035f78SAdrian Hunter 9360d3942dbSSukadev Bhattiprolu if (!objdump_path) { 9370d3942dbSSukadev Bhattiprolu ret = perf_session_env__lookup_objdump(&top->session->header.env); 9380d3942dbSSukadev Bhattiprolu if (ret) 9390d3942dbSSukadev Bhattiprolu goto out_delete; 9400d3942dbSSukadev Bhattiprolu } 9410d3942dbSSukadev Bhattiprolu 9421758af10SArnaldo Carvalho de Melo ret = perf_top__setup_sample_type(top); 94319d4ac3cSArnaldo Carvalho de Melo if (ret) 94419d4ac3cSArnaldo Carvalho de Melo goto out_delete; 94519d4ac3cSArnaldo Carvalho de Melo 946a33fbd56SArnaldo Carvalho de Melo machine__synthesize_threads(&top->session->machines.host, &opts->target, 947a33fbd56SArnaldo Carvalho de Melo top->evlist->threads, false); 94811859e82SArnaldo Carvalho de Melo ret = perf_top__start_counters(top); 94911859e82SArnaldo Carvalho de Melo if (ret) 95011859e82SArnaldo Carvalho de Melo goto out_delete; 95111859e82SArnaldo Carvalho de Melo 9521758af10SArnaldo Carvalho de Melo top->session->evlist = top->evlist; 9537b56cce2SArnaldo Carvalho de Melo perf_session__set_id_hdr_size(top->session); 95486470930SIngo Molnar 9552376c67aSArnaldo Carvalho de Melo /* 9562376c67aSArnaldo Carvalho de Melo * When perf is starting the traced process, all the events (apart from 9572376c67aSArnaldo Carvalho de Melo * group members) have enable_on_exec=1 set, so don't spoil it by 9582376c67aSArnaldo Carvalho de Melo * prematurely enabling them. 9592376c67aSArnaldo Carvalho de Melo * 9602376c67aSArnaldo Carvalho de Melo * XXX 'top' still doesn't start workloads like record, trace, but should, 9612376c67aSArnaldo Carvalho de Melo * so leave the check here. 9622376c67aSArnaldo Carvalho de Melo */ 963602ad878SArnaldo Carvalho de Melo if (!target__none(&opts->target)) 9642376c67aSArnaldo Carvalho de Melo perf_evlist__enable(top->evlist); 9652376c67aSArnaldo Carvalho de Melo 9662f01190aSFrederic Weisbecker /* Wait for a minimal set of events before starting the snapshot */ 967f66a889dSArnaldo Carvalho de Melo perf_evlist__poll(top->evlist, 100); 9682f01190aSFrederic Weisbecker 9691758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 9702f01190aSFrederic Weisbecker 97111859e82SArnaldo Carvalho de Melo ret = -1; 972c0443df1SArnaldo Carvalho de Melo if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : 9731758af10SArnaldo Carvalho de Melo display_thread), top)) { 9743780f488SNamhyung Kim ui__error("Could not create display thread.\n"); 97511859e82SArnaldo Carvalho de Melo goto out_delete; 97686470930SIngo Molnar } 97786470930SIngo Molnar 9781758af10SArnaldo Carvalho de Melo if (top->realtime_prio) { 97986470930SIngo Molnar struct sched_param param; 98086470930SIngo Molnar 9811758af10SArnaldo Carvalho de Melo param.sched_priority = top->realtime_prio; 98286470930SIngo Molnar if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { 9833780f488SNamhyung Kim ui__error("Could not set realtime priority.\n"); 984ae256fa2SJiri Olsa goto out_join; 98586470930SIngo Molnar } 98686470930SIngo Molnar } 98786470930SIngo Molnar 98811859e82SArnaldo Carvalho de Melo while (!done) { 9891758af10SArnaldo Carvalho de Melo u64 hits = top->samples; 99086470930SIngo Molnar 9911758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 99286470930SIngo Molnar 9931758af10SArnaldo Carvalho de Melo if (hits == top->samples) 994f66a889dSArnaldo Carvalho de Melo ret = perf_evlist__poll(top->evlist, 100); 99586470930SIngo Molnar } 99686470930SIngo Molnar 99711859e82SArnaldo Carvalho de Melo ret = 0; 998ae256fa2SJiri Olsa out_join: 999ae256fa2SJiri Olsa pthread_join(thread, NULL); 100019d4ac3cSArnaldo Carvalho de Melo out_delete: 10011758af10SArnaldo Carvalho de Melo perf_session__delete(top->session); 10021758af10SArnaldo Carvalho de Melo top->session = NULL; 100319d4ac3cSArnaldo Carvalho de Melo 100411859e82SArnaldo Carvalho de Melo return ret; 100519d4ac3cSArnaldo Carvalho de Melo } 100619d4ac3cSArnaldo Carvalho de Melo 100719d4ac3cSArnaldo Carvalho de Melo static int 1008ae779a63SJiri Olsa callchain_opt(const struct option *opt, const char *arg, int unset) 1009ae779a63SJiri Olsa { 1010ae779a63SJiri Olsa symbol_conf.use_callchain = true; 1011ae779a63SJiri Olsa return record_callchain_opt(opt, arg, unset); 1012ae779a63SJiri Olsa } 1013ae779a63SJiri Olsa 1014ae779a63SJiri Olsa 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 symbol_conf.use_callchain = true; 10182376c67aSArnaldo Carvalho de Melo return record_parse_callchain_opt(opt, arg, unset); 101986470930SIngo Molnar } 102086470930SIngo Molnar 1021eb853e80SJiri Olsa static int perf_top_config(const char *var, const char *value, void *cb) 1022eb853e80SJiri Olsa { 1023eb853e80SJiri Olsa struct perf_top *top = cb; 1024eb853e80SJiri Olsa 1025eb853e80SJiri Olsa if (!strcmp(var, "top.call-graph")) 1026eb853e80SJiri Olsa return record_parse_callchain(value, &top->record_opts); 1027104ac991SNamhyung Kim if (!strcmp(var, "top.children")) { 1028104ac991SNamhyung Kim symbol_conf.cumulate_callchain = perf_config_bool(var, value); 1029104ac991SNamhyung Kim return 0; 1030104ac991SNamhyung Kim } 1031eb853e80SJiri Olsa 1032eb853e80SJiri Olsa return perf_default_config(var, value, cb); 1033eb853e80SJiri Olsa } 1034eb853e80SJiri Olsa 1035fa5df943SNamhyung Kim static int 1036fa5df943SNamhyung Kim parse_percent_limit(const struct option *opt, const char *arg, 1037fa5df943SNamhyung Kim int unset __maybe_unused) 1038fa5df943SNamhyung Kim { 1039fa5df943SNamhyung Kim struct perf_top *top = opt->value; 1040fa5df943SNamhyung Kim 1041fa5df943SNamhyung Kim top->min_percent = strtof(arg, NULL); 1042fa5df943SNamhyung Kim return 0; 1043fa5df943SNamhyung Kim } 1044fa5df943SNamhyung Kim 10451d037ca1SIrina Tirdea int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) 10461758af10SArnaldo Carvalho de Melo { 1047d37a92dcSNamhyung Kim int status = -1; 104816ad2ffbSNamhyung Kim char errbuf[BUFSIZ]; 10491758af10SArnaldo Carvalho de Melo struct perf_top top = { 10501758af10SArnaldo Carvalho de Melo .count_filter = 5, 10511758af10SArnaldo Carvalho de Melo .delay_secs = 2, 10522376c67aSArnaldo Carvalho de Melo .record_opts = { 10532376c67aSArnaldo Carvalho de Melo .mmap_pages = UINT_MAX, 10542376c67aSArnaldo Carvalho de Melo .user_freq = UINT_MAX, 10552376c67aSArnaldo Carvalho de Melo .user_interval = ULLONG_MAX, 1056447a6013SArnaldo Carvalho de Melo .freq = 4000, /* 4 KHz */ 1057d1cb9fceSNamhyung Kim .target = { 1058d1cb9fceSNamhyung Kim .uses_mmap = true, 1059d1cb9fceSNamhyung Kim }, 10602376c67aSArnaldo Carvalho de Melo }, 10615dbb6e81SWaiman Long .max_stack = PERF_MAX_STACK_DEPTH, 10622376c67aSArnaldo Carvalho de Melo .sym_pcnt_filter = 5, 10631758af10SArnaldo Carvalho de Melo }; 1064b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top.record_opts; 1065602ad878SArnaldo Carvalho de Melo struct target *target = &opts->target; 10661758af10SArnaldo Carvalho de Melo const struct option options[] = { 10678c3e10ebSArnaldo Carvalho de Melo OPT_CALLBACK('e', "event", &top.evlist, "event", 106886470930SIngo Molnar "event selector. use 'perf list' to list available events", 1069f120f9d5SJiri Olsa parse_events_option), 10702376c67aSArnaldo Carvalho de Melo OPT_U64('c', "count", &opts->user_interval, "event period to sample"), 10712376c67aSArnaldo Carvalho de Melo OPT_STRING('p', "pid", &target->pid, "pid", 1072d6d901c2SZhang, Yanmin "profile events on existing process id"), 10732376c67aSArnaldo Carvalho de Melo OPT_STRING('t', "tid", &target->tid, "tid", 1074d6d901c2SZhang, Yanmin "profile events on existing thread id"), 10752376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('a', "all-cpus", &target->system_wide, 107686470930SIngo Molnar "system-wide collection from all CPUs"), 10772376c67aSArnaldo Carvalho de Melo OPT_STRING('C', "cpu", &target->cpu_list, "cpu", 1078c45c6ea2SStephane Eranian "list of cpus to monitor"), 1079b32d133aSArnaldo Carvalho de Melo OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1080b32d133aSArnaldo Carvalho de Melo "file", "vmlinux pathname"), 1081fc2be696SWilly Tarreau OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, 1082fc2be696SWilly Tarreau "don't load vmlinux even if found"), 10838c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, 10848ffcda17SArnaldo Carvalho de Melo "hide kernel symbols"), 1085994a1f78SJiri Olsa OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", 1086994a1f78SJiri Olsa "number of mmap data pages", 1087994a1f78SJiri Olsa perf_evlist__parse_mmap_pages), 10881758af10SArnaldo Carvalho de Melo OPT_INTEGER('r', "realtime", &top.realtime_prio, 108986470930SIngo Molnar "collect data with this RT SCHED_FIFO priority"), 10908c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('d', "delay", &top.delay_secs, 109186470930SIngo Molnar "number of seconds to delay between refreshes"), 10921758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, 109386470930SIngo Molnar "dump the symbol table used for profiling"), 10948c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('f', "count-filter", &top.count_filter, 109586470930SIngo Molnar "only display functions with more events than this"), 1096bf80669eSDavid Ahern OPT_BOOLEAN(0, "group", &opts->group, 109786470930SIngo Molnar "put the counters into a counter group"), 10982376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, 10992376c67aSArnaldo Carvalho de Melo "child tasks do not inherit counters"), 11001758af10SArnaldo Carvalho de Melo OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", 11016cff0e8dSKirill Smelkov "symbol to annotate"), 11022376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), 11032376c67aSArnaldo Carvalho de Melo OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), 11048c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('E', "entries", &top.print_entries, 110586470930SIngo Molnar "display this many functions"), 11068c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, 11078ffcda17SArnaldo Carvalho de Melo "hide user symbols"), 11081758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), 11091758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), 1110c0555642SIan Munsie OPT_INCR('v', "verbose", &verbose, 11113da297a6SIngo Molnar "be more verbose (show counter open errors, etc)"), 1112ab81f3fdSArnaldo Carvalho de Melo OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 1113a2ce067eSNamhyung Kim "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." 1114a2ce067eSNamhyung Kim " Please refer the man page for the complete list."), 11156fe8c26dSNamhyung Kim OPT_STRING(0, "fields", &field_order, "key[,keys...]", 11166fe8c26dSNamhyung Kim "output field(s): overhead, period, sample plus all of sort keys"), 1117ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 1118ab81f3fdSArnaldo Carvalho de Melo "Show a column with the number of samples"), 1119bf80669eSDavid Ahern OPT_CALLBACK_NOOPT('g', NULL, &top.record_opts, 1120ae779a63SJiri Olsa NULL, "enables call-graph recording", 1121ae779a63SJiri Olsa &callchain_opt), 1122ae779a63SJiri Olsa OPT_CALLBACK(0, "call-graph", &top.record_opts, 11232376c67aSArnaldo Carvalho de Melo "mode[,dump_size]", record_callchain_help, 1124ae779a63SJiri Olsa &parse_callchain_opt), 11251432ec34SNamhyung Kim OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, 11261432ec34SNamhyung Kim "Accumulate callchains of children and show total overhead as well"), 11275dbb6e81SWaiman Long OPT_INTEGER(0, "max-stack", &top.max_stack, 11285dbb6e81SWaiman Long "Set the maximum stack depth when parsing the callchain. " 11295dbb6e81SWaiman Long "Default: " __stringify(PERF_MAX_STACK_DEPTH)), 1130b21484f1SGreg Price OPT_CALLBACK(0, "ignore-callees", NULL, "regex", 1131b21484f1SGreg Price "ignore callees of these functions in call graphs", 1132b21484f1SGreg Price report_parse_ignore_callees_opt), 1133ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 1134ab81f3fdSArnaldo Carvalho de Melo "Show a column with the sum of periods"), 1135ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 1136ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these dsos"), 1137ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1138ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these comms"), 1139ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1140ab81f3fdSArnaldo Carvalho de Melo "only consider these symbols"), 114164c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, 114264c6f0c7SArnaldo Carvalho de Melo "Interleave source code with assembly code (default)"), 114364c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, 114464c6f0c7SArnaldo Carvalho de Melo "Display raw encoding of assembly instructions (default)"), 1145763122adSAvi Kivity OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, 1146763122adSAvi Kivity "Enable kernel symbol demangling"), 11470d3942dbSSukadev Bhattiprolu OPT_STRING(0, "objdump", &objdump_path, "path", 11480d3942dbSSukadev Bhattiprolu "objdump binary to use for disassembly and annotations"), 114964c6f0c7SArnaldo Carvalho de Melo OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", 115064c6f0c7SArnaldo Carvalho de Melo "Specify disassembler style (e.g. -M intel for intel syntax)"), 11512376c67aSArnaldo Carvalho de Melo OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), 1152fa5df943SNamhyung Kim OPT_CALLBACK(0, "percent-limit", &top, "percent", 1153fa5df943SNamhyung Kim "Don't show entries under that percent", parse_percent_limit), 115433db4568SNamhyung Kim OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", 115533db4568SNamhyung Kim "How to display percentage of filtered entries", parse_filter_percentage), 1156cf59002fSNamhyung Kim OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, 1157cf59002fSNamhyung Kim "width[,width...]", 1158cf59002fSNamhyung Kim "don't try to adjust column width, use these fixed values"), 115986470930SIngo Molnar OPT_END() 116086470930SIngo Molnar }; 1161be772842SArnaldo Carvalho de Melo const char * const top_usage[] = { 1162be772842SArnaldo Carvalho de Melo "perf top [<options>]", 1163be772842SArnaldo Carvalho de Melo NULL 1164be772842SArnaldo Carvalho de Melo }; 116586470930SIngo Molnar 1166334fe7a3SNamhyung Kim top.evlist = perf_evlist__new(); 11678c3e10ebSArnaldo Carvalho de Melo if (top.evlist == NULL) 1168361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1169361c99a6SArnaldo Carvalho de Melo 1170eb853e80SJiri Olsa perf_config(perf_top_config, &top); 1171eb853e80SJiri Olsa 117286470930SIngo Molnar argc = parse_options(argc, argv, options, top_usage, 0); 117386470930SIngo Molnar if (argc) 117486470930SIngo Molnar usage_with_options(top_usage, options); 117586470930SIngo Molnar 1176512ae1bdSNamhyung Kim sort__mode = SORT_MODE__TOP; 11773a5714f8SNamhyung Kim /* display thread wants entries to be collapsed in a different tree */ 11783a5714f8SNamhyung Kim sort__need_collapse = 1; 11793a5714f8SNamhyung Kim 11806fe8c26dSNamhyung Kim if (setup_sorting() < 0) { 11816fe8c26dSNamhyung Kim if (sort_order) 11826fe8c26dSNamhyung Kim parse_options_usage(top_usage, options, "s", 1); 11836fe8c26dSNamhyung Kim if (field_order) 11846fe8c26dSNamhyung Kim parse_options_usage(sort_order ? NULL : top_usage, 11856fe8c26dSNamhyung Kim options, "fields", 0); 11866fe8c26dSNamhyung Kim goto out_delete_evlist; 11876fe8c26dSNamhyung Kim } 118822af969eSNamhyung Kim 11891758af10SArnaldo Carvalho de Melo if (top.use_stdio) 1190c0443df1SArnaldo Carvalho de Melo use_browser = 0; 11911758af10SArnaldo Carvalho de Melo else if (top.use_tui) 1192c0443df1SArnaldo Carvalho de Melo use_browser = 1; 1193c0443df1SArnaldo Carvalho de Melo 1194c0443df1SArnaldo Carvalho de Melo setup_browser(false); 1195c0443df1SArnaldo Carvalho de Melo 1196602ad878SArnaldo Carvalho de Melo status = target__validate(target); 119716ad2ffbSNamhyung Kim if (status) { 1198602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1199ea432a8bSIngo Molnar ui__warning("%s\n", errbuf); 120016ad2ffbSNamhyung Kim } 12014bd0f2d2SNamhyung Kim 1202602ad878SArnaldo Carvalho de Melo status = target__parse_uid(target); 120316ad2ffbSNamhyung Kim if (status) { 120416ad2ffbSNamhyung Kim int saved_errno = errno; 120516ad2ffbSNamhyung Kim 1206602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1207ea432a8bSIngo Molnar ui__error("%s\n", errbuf); 120816ad2ffbSNamhyung Kim 120916ad2ffbSNamhyung Kim status = -saved_errno; 12100d37aa34SArnaldo Carvalho de Melo goto out_delete_evlist; 121116ad2ffbSNamhyung Kim } 12120d37aa34SArnaldo Carvalho de Melo 1213602ad878SArnaldo Carvalho de Melo if (target__none(target)) 12142376c67aSArnaldo Carvalho de Melo target->system_wide = true; 121510b47d54SArnaldo Carvalho de Melo 12162376c67aSArnaldo Carvalho de Melo if (perf_evlist__create_maps(top.evlist, target) < 0) 12177e2ed097SArnaldo Carvalho de Melo usage_with_options(top_usage, options); 12187e2ed097SArnaldo Carvalho de Melo 12198c3e10ebSArnaldo Carvalho de Melo if (!top.evlist->nr_entries && 12208c3e10ebSArnaldo Carvalho de Melo perf_evlist__add_default(top.evlist) < 0) { 12213780f488SNamhyung Kim ui__error("Not enough memory for event selector list\n"); 122203ad9747SArnaldo Carvalho de Melo goto out_delete_evlist; 122369aad6f1SArnaldo Carvalho de Melo } 12245a8e5a30SArnaldo Carvalho de Melo 1225d04b35f8SArnaldo Carvalho de Melo symbol_conf.nr_events = top.evlist->nr_entries; 1226d04b35f8SArnaldo Carvalho de Melo 12278c3e10ebSArnaldo Carvalho de Melo if (top.delay_secs < 1) 12288c3e10ebSArnaldo Carvalho de Melo top.delay_secs = 1; 122986470930SIngo Molnar 1230b4006796SArnaldo Carvalho de Melo if (record_opts__config(opts)) { 12312376c67aSArnaldo Carvalho de Melo status = -EINVAL; 123203ad9747SArnaldo Carvalho de Melo goto out_delete_evlist; 123369aad6f1SArnaldo Carvalho de Melo } 123469aad6f1SArnaldo Carvalho de Melo 12350c21f736SArnaldo Carvalho de Melo top.sym_evsel = perf_evlist__first(top.evlist); 1236cc841580SArnaldo Carvalho de Melo 12371432ec34SNamhyung Kim if (!symbol_conf.use_callchain) { 12381432ec34SNamhyung Kim symbol_conf.cumulate_callchain = false; 12391432ec34SNamhyung Kim perf_hpp__cancel_cumulate(); 12401432ec34SNamhyung Kim } 12411432ec34SNamhyung Kim 1242ab81f3fdSArnaldo Carvalho de Melo symbol_conf.priv_size = sizeof(struct annotation); 124369aad6f1SArnaldo Carvalho de Melo 124469aad6f1SArnaldo Carvalho de Melo symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); 12450a7e6d1bSNamhyung Kim if (symbol__init(NULL) < 0) 124669aad6f1SArnaldo Carvalho de Melo return -1; 124769aad6f1SArnaldo Carvalho de Melo 124808e71542SNamhyung Kim sort__setup_elide(stdout); 1249ab81f3fdSArnaldo Carvalho de Melo 12501758af10SArnaldo Carvalho de Melo get_term_dimensions(&top.winsize); 12518c3e10ebSArnaldo Carvalho de Melo if (top.print_entries == 0) { 12521758af10SArnaldo Carvalho de Melo struct sigaction act = { 12531758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 12541758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 12551758af10SArnaldo Carvalho de Melo }; 12561758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(&top); 12571758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 12583b6ed988SArnaldo Carvalho de Melo } 12593b6ed988SArnaldo Carvalho de Melo 12601758af10SArnaldo Carvalho de Melo status = __cmd_top(&top); 1261806fb630SArnaldo Carvalho de Melo 12620d37aa34SArnaldo Carvalho de Melo out_delete_evlist: 12638c3e10ebSArnaldo Carvalho de Melo perf_evlist__delete(top.evlist); 126469aad6f1SArnaldo Carvalho de Melo 126569aad6f1SArnaldo Carvalho de Melo return status; 126686470930SIngo Molnar } 1267