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> 6286470930SIngo Molnar #include <sys/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 279c1fb5651SNamhyung Kim hists__collapse_resort(&top->sym_evsel->hists, NULL); 2803a5714f8SNamhyung Kim hists__output_resort(&top->sym_evsel->hists); 2813a5714f8SNamhyung Kim hists__decay_entries(&top->sym_evsel->hists, 2821758af10SArnaldo Carvalho de Melo top->hide_user_symbols, 2831758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols); 2841758af10SArnaldo Carvalho de Melo hists__output_recalc_col_len(&top->sym_evsel->hists, 285933cbb1cSNamhyung Kim top->print_entries - printed); 2861a105f74SArnaldo Carvalho de Melo putchar('\n'); 28741724e4cSJiri Olsa hists__fprintf(&top->sym_evsel->hists, false, 288fa5df943SNamhyung Kim top->print_entries - printed, win_width, 289fa5df943SNamhyung Kim top->min_percent, stdout); 29086470930SIngo Molnar } 29186470930SIngo Molnar 292923c42c1SMike Galbraith static void prompt_integer(int *target, const char *msg) 293923c42c1SMike Galbraith { 294923c42c1SMike Galbraith char *buf = malloc(0), *p; 295923c42c1SMike Galbraith size_t dummy = 0; 296923c42c1SMike Galbraith int tmp; 297923c42c1SMike Galbraith 298923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 299923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 300923c42c1SMike Galbraith return; 301923c42c1SMike Galbraith 302923c42c1SMike Galbraith p = strchr(buf, '\n'); 303923c42c1SMike Galbraith if (p) 304923c42c1SMike Galbraith *p = 0; 305923c42c1SMike Galbraith 306923c42c1SMike Galbraith p = buf; 307923c42c1SMike Galbraith while(*p) { 308923c42c1SMike Galbraith if (!isdigit(*p)) 309923c42c1SMike Galbraith goto out_free; 310923c42c1SMike Galbraith p++; 311923c42c1SMike Galbraith } 312923c42c1SMike Galbraith tmp = strtoul(buf, NULL, 10); 313923c42c1SMike Galbraith *target = tmp; 314923c42c1SMike Galbraith out_free: 315923c42c1SMike Galbraith free(buf); 316923c42c1SMike Galbraith } 317923c42c1SMike Galbraith 318923c42c1SMike Galbraith static void prompt_percent(int *target, const char *msg) 319923c42c1SMike Galbraith { 320923c42c1SMike Galbraith int tmp = 0; 321923c42c1SMike Galbraith 322923c42c1SMike Galbraith prompt_integer(&tmp, msg); 323923c42c1SMike Galbraith if (tmp >= 0 && tmp <= 100) 324923c42c1SMike Galbraith *target = tmp; 325923c42c1SMike Galbraith } 326923c42c1SMike Galbraith 3271758af10SArnaldo Carvalho de Melo static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) 328923c42c1SMike Galbraith { 329923c42c1SMike Galbraith char *buf = malloc(0), *p; 3301758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; 331ab81f3fdSArnaldo Carvalho de Melo struct rb_node *next; 332923c42c1SMike Galbraith size_t dummy = 0; 333923c42c1SMike Galbraith 334923c42c1SMike Galbraith /* zero counters of active symbol */ 335923c42c1SMike Galbraith if (syme) { 336923c42c1SMike Galbraith __zero_source_counters(syme); 3371758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 338923c42c1SMike Galbraith } 339923c42c1SMike Galbraith 340923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 341923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 342923c42c1SMike Galbraith goto out_free; 343923c42c1SMike Galbraith 344923c42c1SMike Galbraith p = strchr(buf, '\n'); 345923c42c1SMike Galbraith if (p) 346923c42c1SMike Galbraith *p = 0; 347923c42c1SMike Galbraith 3481758af10SArnaldo Carvalho de Melo next = rb_first(&top->sym_evsel->hists.entries); 349ab81f3fdSArnaldo Carvalho de Melo while (next) { 350ab81f3fdSArnaldo Carvalho de Melo n = rb_entry(next, struct hist_entry, rb_node); 351ab81f3fdSArnaldo Carvalho de Melo if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { 352ab81f3fdSArnaldo Carvalho de Melo found = n; 353923c42c1SMike Galbraith break; 354923c42c1SMike Galbraith } 355ab81f3fdSArnaldo Carvalho de Melo next = rb_next(&n->rb_node); 356923c42c1SMike Galbraith } 357923c42c1SMike Galbraith 358923c42c1SMike Galbraith if (!found) { 35966aeb6d5SKirill Smelkov fprintf(stderr, "Sorry, %s is not active.\n", buf); 360923c42c1SMike Galbraith sleep(1); 361923c42c1SMike Galbraith } else 3621758af10SArnaldo Carvalho de Melo perf_top__parse_source(top, found); 363923c42c1SMike Galbraith 364923c42c1SMike Galbraith out_free: 365923c42c1SMike Galbraith free(buf); 366923c42c1SMike Galbraith } 367923c42c1SMike Galbraith 3681758af10SArnaldo Carvalho de Melo static void perf_top__print_mapped_keys(struct perf_top *top) 369923c42c1SMike Galbraith { 370091bd2e9SMike Galbraith char *name = NULL; 371091bd2e9SMike Galbraith 3721758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 3731758af10SArnaldo Carvalho de Melo struct symbol *sym = top->sym_filter_entry->ms.sym; 374091bd2e9SMike Galbraith name = sym->name; 375091bd2e9SMike Galbraith } 376091bd2e9SMike Galbraith 377091bd2e9SMike Galbraith fprintf(stdout, "\nMapped keys:\n"); 3781758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); 3791758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); 380091bd2e9SMike Galbraith 3811758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) 3827289f83cSArnaldo Carvalho de Melo fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); 383091bd2e9SMike Galbraith 3841758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); 385091bd2e9SMike Galbraith 3861758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); 387091bd2e9SMike Galbraith fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); 388091bd2e9SMike Galbraith fprintf(stdout, "\t[S] stop annotation.\n"); 389091bd2e9SMike Galbraith 3908ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 3918ffcda17SArnaldo Carvalho de Melo "\t[K] hide kernel_symbols symbols. \t(%s)\n", 3921758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols ? "yes" : "no"); 3938ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 3948ffcda17SArnaldo Carvalho de Melo "\t[U] hide user symbols. \t(%s)\n", 3951758af10SArnaldo Carvalho de Melo top->hide_user_symbols ? "yes" : "no"); 3961758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); 397091bd2e9SMike Galbraith fprintf(stdout, "\t[qQ] quit.\n"); 398091bd2e9SMike Galbraith } 399091bd2e9SMike Galbraith 4001758af10SArnaldo Carvalho de Melo static int perf_top__key_mapped(struct perf_top *top, int c) 401091bd2e9SMike Galbraith { 402091bd2e9SMike Galbraith switch (c) { 403091bd2e9SMike Galbraith case 'd': 404091bd2e9SMike Galbraith case 'e': 405091bd2e9SMike Galbraith case 'f': 406091bd2e9SMike Galbraith case 'z': 407091bd2e9SMike Galbraith case 'q': 408091bd2e9SMike Galbraith case 'Q': 4098ffcda17SArnaldo Carvalho de Melo case 'K': 4108ffcda17SArnaldo Carvalho de Melo case 'U': 4116cff0e8dSKirill Smelkov case 'F': 4126cff0e8dSKirill Smelkov case 's': 4136cff0e8dSKirill Smelkov case 'S': 414091bd2e9SMike Galbraith return 1; 415091bd2e9SMike Galbraith case 'E': 4161758af10SArnaldo Carvalho de Melo return top->evlist->nr_entries > 1 ? 1 : 0; 41783a0944fSIngo Molnar default: 41883a0944fSIngo Molnar break; 419091bd2e9SMike Galbraith } 420091bd2e9SMike Galbraith 421091bd2e9SMike Galbraith return 0; 422923c42c1SMike Galbraith } 423923c42c1SMike Galbraith 42411859e82SArnaldo Carvalho de Melo static bool perf_top__handle_keypress(struct perf_top *top, int c) 425923c42c1SMike Galbraith { 42611859e82SArnaldo Carvalho de Melo bool ret = true; 42711859e82SArnaldo Carvalho de Melo 4281758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) { 429091bd2e9SMike Galbraith struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 430091bd2e9SMike Galbraith struct termios tc, save; 431091bd2e9SMike Galbraith 4321758af10SArnaldo Carvalho de Melo perf_top__print_mapped_keys(top); 433091bd2e9SMike Galbraith fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); 434091bd2e9SMike Galbraith fflush(stdout); 435091bd2e9SMike Galbraith 436091bd2e9SMike Galbraith tcgetattr(0, &save); 437091bd2e9SMike Galbraith tc = save; 438091bd2e9SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 439091bd2e9SMike Galbraith tc.c_cc[VMIN] = 0; 440091bd2e9SMike Galbraith tc.c_cc[VTIME] = 0; 441091bd2e9SMike Galbraith tcsetattr(0, TCSANOW, &tc); 442091bd2e9SMike Galbraith 443091bd2e9SMike Galbraith poll(&stdin_poll, 1, -1); 444091bd2e9SMike Galbraith c = getc(stdin); 445091bd2e9SMike Galbraith 446091bd2e9SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 4471758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) 44811859e82SArnaldo Carvalho de Melo return ret; 449091bd2e9SMike Galbraith } 450091bd2e9SMike Galbraith 451923c42c1SMike Galbraith switch (c) { 452923c42c1SMike Galbraith case 'd': 4531758af10SArnaldo Carvalho de Melo prompt_integer(&top->delay_secs, "Enter display delay"); 4541758af10SArnaldo Carvalho de Melo if (top->delay_secs < 1) 4551758af10SArnaldo Carvalho de Melo top->delay_secs = 1; 456923c42c1SMike Galbraith break; 457923c42c1SMike Galbraith case 'e': 4581758af10SArnaldo Carvalho de Melo prompt_integer(&top->print_entries, "Enter display entries (lines)"); 4591758af10SArnaldo Carvalho de Melo if (top->print_entries == 0) { 4601758af10SArnaldo Carvalho de Melo struct sigaction act = { 4611758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 4621758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 4631758af10SArnaldo Carvalho de Melo }; 4641758af10SArnaldo Carvalho de Melo perf_top__sig_winch(SIGWINCH, NULL, top); 4651758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 466509605dbSStephane Eranian } else { 4673b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, SIG_DFL); 468509605dbSStephane Eranian } 469923c42c1SMike Galbraith break; 470923c42c1SMike Galbraith case 'E': 4711758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) { 472ce2d17caSAkihiro Nagai /* Select 0 as the default event: */ 473ce2d17caSAkihiro Nagai int counter = 0; 474ce2d17caSAkihiro Nagai 475923c42c1SMike Galbraith fprintf(stderr, "\nAvailable events:"); 47669aad6f1SArnaldo Carvalho de Melo 4770050f7aaSArnaldo Carvalho de Melo evlist__for_each(top->evlist, top->sym_evsel) 4787289f83cSArnaldo Carvalho de Melo fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); 479923c42c1SMike Galbraith 480ec52d976SArnaldo Carvalho de Melo prompt_integer(&counter, "Enter details event counter"); 481923c42c1SMike Galbraith 4821758af10SArnaldo Carvalho de Melo if (counter >= top->evlist->nr_entries) { 4830c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 4847289f83cSArnaldo Carvalho de Melo fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); 485923c42c1SMike Galbraith sleep(1); 48669aad6f1SArnaldo Carvalho de Melo break; 487923c42c1SMike Galbraith } 4880050f7aaSArnaldo Carvalho de Melo evlist__for_each(top->evlist, top->sym_evsel) 4891758af10SArnaldo Carvalho de Melo if (top->sym_evsel->idx == counter) 49069aad6f1SArnaldo Carvalho de Melo break; 491ec52d976SArnaldo Carvalho de Melo } else 4920c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 493923c42c1SMike Galbraith break; 494923c42c1SMike Galbraith case 'f': 4951758af10SArnaldo Carvalho de Melo prompt_integer(&top->count_filter, "Enter display event count filter"); 496923c42c1SMike Galbraith break; 497923c42c1SMike Galbraith case 'F': 4981758af10SArnaldo Carvalho de Melo prompt_percent(&top->sym_pcnt_filter, 4991758af10SArnaldo Carvalho de Melo "Enter details display event filter (percent)"); 500923c42c1SMike Galbraith break; 5018ffcda17SArnaldo Carvalho de Melo case 'K': 5021758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols = !top->hide_kernel_symbols; 5038ffcda17SArnaldo Carvalho de Melo break; 504923c42c1SMike Galbraith case 'q': 505923c42c1SMike Galbraith case 'Q': 506923c42c1SMike Galbraith printf("exiting.\n"); 5071758af10SArnaldo Carvalho de Melo if (top->dump_symtab) 5081758af10SArnaldo Carvalho de Melo perf_session__fprintf_dsos(top->session, stderr); 50911859e82SArnaldo Carvalho de Melo ret = false; 51011859e82SArnaldo Carvalho de Melo break; 511923c42c1SMike Galbraith case 's': 5121758af10SArnaldo Carvalho de Melo perf_top__prompt_symbol(top, "Enter details symbol"); 513923c42c1SMike Galbraith break; 514923c42c1SMike Galbraith case 'S': 5151758af10SArnaldo Carvalho de Melo if (!top->sym_filter_entry) 516923c42c1SMike Galbraith break; 517923c42c1SMike Galbraith else { 5181758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry; 519923c42c1SMike Galbraith 5201758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 521923c42c1SMike Galbraith __zero_source_counters(syme); 522923c42c1SMike Galbraith } 523923c42c1SMike Galbraith break; 5248ffcda17SArnaldo Carvalho de Melo case 'U': 5251758af10SArnaldo Carvalho de Melo top->hide_user_symbols = !top->hide_user_symbols; 5268ffcda17SArnaldo Carvalho de Melo break; 527923c42c1SMike Galbraith case 'z': 5281758af10SArnaldo Carvalho de Melo top->zero = !top->zero; 529923c42c1SMike Galbraith break; 53083a0944fSIngo Molnar default: 53183a0944fSIngo Molnar break; 532923c42c1SMike Galbraith } 53311859e82SArnaldo Carvalho de Melo 53411859e82SArnaldo Carvalho de Melo return ret; 535923c42c1SMike Galbraith } 536923c42c1SMike Galbraith 537ab81f3fdSArnaldo Carvalho de Melo static void perf_top__sort_new_samples(void *arg) 538ab81f3fdSArnaldo Carvalho de Melo { 539ab81f3fdSArnaldo Carvalho de Melo struct perf_top *t = arg; 540ab81f3fdSArnaldo Carvalho de Melo perf_top__reset_sample_counters(t); 541ab81f3fdSArnaldo Carvalho de Melo 542ab81f3fdSArnaldo Carvalho de Melo if (t->evlist->selected != NULL) 543ab81f3fdSArnaldo Carvalho de Melo t->sym_evsel = t->evlist->selected; 544ab81f3fdSArnaldo Carvalho de Melo 545c1fb5651SNamhyung Kim hists__collapse_resort(&t->sym_evsel->hists, NULL); 5463a5714f8SNamhyung Kim hists__output_resort(&t->sym_evsel->hists); 5473a5714f8SNamhyung Kim hists__decay_entries(&t->sym_evsel->hists, 5481758af10SArnaldo Carvalho de Melo t->hide_user_symbols, 5491758af10SArnaldo Carvalho de Melo t->hide_kernel_symbols); 550ab81f3fdSArnaldo Carvalho de Melo } 551ab81f3fdSArnaldo Carvalho de Melo 5521758af10SArnaldo Carvalho de Melo static void *display_thread_tui(void *arg) 553c0443df1SArnaldo Carvalho de Melo { 5540d37aa34SArnaldo Carvalho de Melo struct perf_evsel *pos; 5551758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 556ab81f3fdSArnaldo Carvalho de Melo const char *help = "For a higher level overview, try: perf top --sort comm,dso"; 5579783adf7SNamhyung Kim struct hist_browser_timer hbt = { 5589783adf7SNamhyung Kim .timer = perf_top__sort_new_samples, 5599783adf7SNamhyung Kim .arg = top, 5609783adf7SNamhyung Kim .refresh = top->delay_secs, 5619783adf7SNamhyung Kim }; 562ab81f3fdSArnaldo Carvalho de Melo 5631758af10SArnaldo Carvalho de Melo perf_top__sort_new_samples(top); 5640d37aa34SArnaldo Carvalho de Melo 5650d37aa34SArnaldo Carvalho de Melo /* 5660d37aa34SArnaldo Carvalho de Melo * Initialize the uid_filter_str, in the future the TUI will allow 5670d37aa34SArnaldo Carvalho de Melo * Zooming in/out UIDs. For now juse use whatever the user passed 5680d37aa34SArnaldo Carvalho de Melo * via --uid. 5690d37aa34SArnaldo Carvalho de Melo */ 5700050f7aaSArnaldo Carvalho de Melo evlist__for_each(top->evlist, pos) 5712376c67aSArnaldo Carvalho de Melo pos->hists.uid_filter_str = top->record_opts.target.uid_str; 5720d37aa34SArnaldo Carvalho de Melo 573fa5df943SNamhyung Kim perf_evlist__tui_browse_hists(top->evlist, help, &hbt, top->min_percent, 57468d80758SNamhyung Kim &top->session->header.env); 575ab81f3fdSArnaldo Carvalho de Melo 57611859e82SArnaldo Carvalho de Melo done = 1; 577c0443df1SArnaldo Carvalho de Melo return NULL; 578c0443df1SArnaldo Carvalho de Melo } 579c0443df1SArnaldo Carvalho de Melo 5801758af10SArnaldo Carvalho de Melo static void *display_thread(void *arg) 58186470930SIngo Molnar { 58286470930SIngo Molnar struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 583923c42c1SMike Galbraith struct termios tc, save; 5841758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 585923c42c1SMike Galbraith int delay_msecs, c; 58686470930SIngo Molnar 587923c42c1SMike Galbraith tcgetattr(0, &save); 588923c42c1SMike Galbraith tc = save; 589923c42c1SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 590923c42c1SMike Galbraith tc.c_cc[VMIN] = 0; 591923c42c1SMike Galbraith tc.c_cc[VTIME] = 0; 592091bd2e9SMike Galbraith 5933af6e338SArnaldo Carvalho de Melo pthread__unblock_sigwinch(); 594923c42c1SMike Galbraith repeat: 5951758af10SArnaldo Carvalho de Melo delay_msecs = top->delay_secs * 1000; 596923c42c1SMike Galbraith tcsetattr(0, TCSANOW, &tc); 597923c42c1SMike Galbraith /* trash return*/ 598923c42c1SMike Galbraith getc(stdin); 59986470930SIngo Molnar 60011859e82SArnaldo Carvalho de Melo while (!done) { 6011758af10SArnaldo Carvalho de Melo perf_top__print_sym_table(top); 6023af6e338SArnaldo Carvalho de Melo /* 6033af6e338SArnaldo Carvalho de Melo * Either timeout expired or we got an EINTR due to SIGWINCH, 6043af6e338SArnaldo Carvalho de Melo * refresh screen in both cases. 6053af6e338SArnaldo Carvalho de Melo */ 6063af6e338SArnaldo Carvalho de Melo switch (poll(&stdin_poll, 1, delay_msecs)) { 6073af6e338SArnaldo Carvalho de Melo case 0: 6083af6e338SArnaldo Carvalho de Melo continue; 6093af6e338SArnaldo Carvalho de Melo case -1: 6103af6e338SArnaldo Carvalho de Melo if (errno == EINTR) 6113af6e338SArnaldo Carvalho de Melo continue; 6123af6e338SArnaldo Carvalho de Melo /* Fall trhu */ 6133af6e338SArnaldo Carvalho de Melo default: 614923c42c1SMike Galbraith c = getc(stdin); 615923c42c1SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 616923c42c1SMike Galbraith 61711859e82SArnaldo Carvalho de Melo if (perf_top__handle_keypress(top, c)) 618923c42c1SMike Galbraith goto repeat; 61911859e82SArnaldo Carvalho de Melo done = 1; 62011859e82SArnaldo Carvalho de Melo } 62111859e82SArnaldo Carvalho de Melo } 62286470930SIngo Molnar 62386470930SIngo Molnar return NULL; 62486470930SIngo Molnar } 62586470930SIngo Molnar 626e7110b9fSArnaldo Carvalho de Melo static int symbol_filter(struct map *map, struct symbol *sym) 62786470930SIngo Molnar { 62886470930SIngo Molnar const char *name = sym->name; 62986470930SIngo Molnar 630e7110b9fSArnaldo Carvalho de Melo if (!map->dso->kernel) 631e7110b9fSArnaldo Carvalho de Melo return 0; 6323a3393efSAnton Blanchard /* 6333a3393efSAnton Blanchard * ppc64 uses function descriptors and appends a '.' to the 6343a3393efSAnton Blanchard * start of every instruction address. Remove it. 6353a3393efSAnton Blanchard */ 6363a3393efSAnton Blanchard if (name[0] == '.') 6373a3393efSAnton Blanchard name++; 6383a3393efSAnton Blanchard 63986470930SIngo Molnar if (!strcmp(name, "_text") || 64086470930SIngo Molnar !strcmp(name, "_etext") || 64186470930SIngo Molnar !strcmp(name, "_sinittext") || 64286470930SIngo Molnar !strncmp("init_module", name, 11) || 64386470930SIngo Molnar !strncmp("cleanup_module", name, 14) || 64486470930SIngo Molnar strstr(name, "_text_start") || 64586470930SIngo Molnar strstr(name, "_text_end")) 64686470930SIngo Molnar return 1; 64786470930SIngo Molnar 64882d1deb0SDavid Ahern if (symbol__is_idle(sym)) 649171b3be9SArnaldo Carvalho de Melo sym->ignore = true; 65086470930SIngo Molnar 65186470930SIngo Molnar return 0; 65286470930SIngo Molnar } 65386470930SIngo Molnar 6547c50391fSNamhyung Kim static int hist_iter__top_callback(struct hist_entry_iter *iter, 6557c50391fSNamhyung Kim struct addr_location *al, bool single, 6567c50391fSNamhyung Kim void *arg) 6577c50391fSNamhyung Kim { 6587c50391fSNamhyung Kim struct perf_top *top = arg; 6597c50391fSNamhyung Kim struct hist_entry *he = iter->he; 6607c50391fSNamhyung Kim struct perf_evsel *evsel = iter->evsel; 6617c50391fSNamhyung Kim 6627c50391fSNamhyung Kim if (sort__has_sym && single) { 6637c50391fSNamhyung Kim u64 ip = al->addr; 6647c50391fSNamhyung Kim 6657c50391fSNamhyung Kim if (al->map) 6667c50391fSNamhyung Kim ip = al->map->unmap_ip(al->map, ip); 6677c50391fSNamhyung Kim 6687c50391fSNamhyung Kim perf_top__record_precise_ip(top, he, evsel->idx, ip); 6697c50391fSNamhyung Kim } 6707c50391fSNamhyung Kim 6717c50391fSNamhyung Kim return 0; 6727c50391fSNamhyung Kim } 6737c50391fSNamhyung Kim 6741758af10SArnaldo Carvalho de Melo static void perf_event__process_sample(struct perf_tool *tool, 6751758af10SArnaldo Carvalho de Melo const union perf_event *event, 6767b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel, 6778d50e5b4SArnaldo Carvalho de Melo struct perf_sample *sample, 678743eb868SArnaldo Carvalho de Melo struct machine *machine) 67986470930SIngo Molnar { 6801758af10SArnaldo Carvalho de Melo struct perf_top *top = container_of(tool, struct perf_top, tool); 6811ed091c4SArnaldo Carvalho de Melo struct addr_location al; 68219d4ac3cSArnaldo Carvalho de Melo int err; 6835b2bb75aSArnaldo Carvalho de Melo 68423346f21SArnaldo Carvalho de Melo if (!machine && perf_guest) { 6856b118e92SDavid Ahern static struct intlist *seen; 6866b118e92SDavid Ahern 6876b118e92SDavid Ahern if (!seen) 688ffe0fb76SArnaldo Carvalho de Melo seen = intlist__new(NULL); 6896b118e92SDavid Ahern 690ef89325fSAdrian Hunter if (!intlist__has_entry(seen, sample->pid)) { 691a1645ce1SZhang, Yanmin pr_err("Can't find guest [%d]'s kernel information\n", 692ef89325fSAdrian Hunter sample->pid); 693ef89325fSAdrian Hunter intlist__add(seen, sample->pid); 6946b118e92SDavid Ahern } 695a1645ce1SZhang, Yanmin return; 696a1645ce1SZhang, Yanmin } 697a1645ce1SZhang, Yanmin 6980c095715SJoerg Roedel if (!machine) { 69911859e82SArnaldo Carvalho de Melo pr_err("%u unprocessable samples recorded.\r", 70028a6b6aaSArnaldo Carvalho de Melo top->session->stats.nr_unprocessable_samples++); 7010c095715SJoerg Roedel return; 7020c095715SJoerg Roedel } 7030c095715SJoerg Roedel 7048115d60cSArnaldo Carvalho de Melo if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) 7051758af10SArnaldo Carvalho de Melo top->exact_samples++; 7061676b8a0SPeter Zijlstra 70733db4568SNamhyung Kim if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) 7081ed091c4SArnaldo Carvalho de Melo return; 70986470930SIngo Molnar 7101758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && 7115f6f5580SArnaldo Carvalho de Melo symbol_conf.kptr_restrict && 7125f6f5580SArnaldo Carvalho de Melo al.cpumode == PERF_RECORD_MISC_KERNEL) { 7135f6f5580SArnaldo Carvalho de Melo ui__warning( 7145f6f5580SArnaldo Carvalho de Melo "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" 7155f6f5580SArnaldo Carvalho de Melo "Check /proc/sys/kernel/kptr_restrict.\n\n" 7165f6f5580SArnaldo Carvalho de Melo "Kernel%s samples will not be resolved.\n", 7175f6f5580SArnaldo Carvalho de Melo !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? 7185f6f5580SArnaldo Carvalho de Melo " modules" : ""); 7195f6f5580SArnaldo Carvalho de Melo if (use_browser <= 0) 7205f6f5580SArnaldo Carvalho de Melo sleep(5); 7211758af10SArnaldo Carvalho de Melo top->kptr_restrict_warned = true; 7225f6f5580SArnaldo Carvalho de Melo } 7235f6f5580SArnaldo Carvalho de Melo 72472b8fa17SArnaldo Carvalho de Melo if (al.sym == NULL) { 725e4a338d0SArnaldo Carvalho de Melo const char *msg = "Kernel samples will not be resolved.\n"; 72672b8fa17SArnaldo Carvalho de Melo /* 72772b8fa17SArnaldo Carvalho de Melo * As we do lazy loading of symtabs we only will know if the 72872b8fa17SArnaldo Carvalho de Melo * specified vmlinux file is invalid when we actually have a 72972b8fa17SArnaldo Carvalho de Melo * hit in kernel space and then try to load it. So if we get 73072b8fa17SArnaldo Carvalho de Melo * here and there are _no_ symbols in the DSO backing the 73172b8fa17SArnaldo Carvalho de Melo * kernel map, bail out. 73272b8fa17SArnaldo Carvalho de Melo * 73372b8fa17SArnaldo Carvalho de Melo * We may never get here, for instance, if we use -K/ 73472b8fa17SArnaldo Carvalho de Melo * --hide-kernel-symbols, even if the user specifies an 73572b8fa17SArnaldo Carvalho de Melo * invalid --vmlinux ;-) 73672b8fa17SArnaldo Carvalho de Melo */ 7371758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && !top->vmlinux_warned && 738e4a338d0SArnaldo Carvalho de Melo al.map == machine->vmlinux_maps[MAP__FUNCTION] && 73972b8fa17SArnaldo Carvalho de Melo RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { 740e4a338d0SArnaldo Carvalho de Melo if (symbol_conf.vmlinux_name) { 741e4a338d0SArnaldo Carvalho de Melo ui__warning("The %s file can't be used.\n%s", 742e4a338d0SArnaldo Carvalho de Melo symbol_conf.vmlinux_name, msg); 743e4a338d0SArnaldo Carvalho de Melo } else { 744e4a338d0SArnaldo Carvalho de Melo ui__warning("A vmlinux file was not found.\n%s", 745e4a338d0SArnaldo Carvalho de Melo msg); 746e4a338d0SArnaldo Carvalho de Melo } 747e4a338d0SArnaldo Carvalho de Melo 748e4a338d0SArnaldo Carvalho de Melo if (use_browser <= 0) 749e4a338d0SArnaldo Carvalho de Melo sleep(5); 7501758af10SArnaldo Carvalho de Melo top->vmlinux_warned = true; 75172b8fa17SArnaldo Carvalho de Melo } 75272b8fa17SArnaldo Carvalho de Melo } 75372b8fa17SArnaldo Carvalho de Melo 754ab81f3fdSArnaldo Carvalho de Melo if (al.sym == NULL || !al.sym->ignore) { 7557c50391fSNamhyung Kim struct hist_entry_iter iter = { 7567c50391fSNamhyung Kim .add_entry_cb = hist_iter__top_callback, 7577c50391fSNamhyung Kim }; 75870db7533SArnaldo Carvalho de Melo 7597c50391fSNamhyung Kim if (symbol_conf.cumulate_callchain) 7607c50391fSNamhyung Kim iter.ops = &hist_iter_cumulative; 7617c50391fSNamhyung Kim else 7627c50391fSNamhyung Kim iter.ops = &hist_iter_normal; 76319d4ac3cSArnaldo Carvalho de Melo 7647c50391fSNamhyung Kim pthread_mutex_lock(&evsel->hists.lock); 7657c50391fSNamhyung Kim 7667c50391fSNamhyung Kim err = hist_entry_iter__add(&iter, &al, evsel, sample, 7677c50391fSNamhyung Kim top->max_stack, top); 7687c50391fSNamhyung Kim if (err < 0) 769ab81f3fdSArnaldo Carvalho de Melo pr_err("Problem incrementing symbol period, skipping event\n"); 770ab81f3fdSArnaldo Carvalho de Melo 7717c50391fSNamhyung Kim pthread_mutex_unlock(&evsel->hists.lock); 7725807806aSArnaldo Carvalho de Melo } 773ab81f3fdSArnaldo Carvalho de Melo 774ab81f3fdSArnaldo Carvalho de Melo return; 77586470930SIngo Molnar } 77686470930SIngo Molnar 7771758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read_idx(struct perf_top *top, int idx) 77886470930SIngo Molnar { 7798d50e5b4SArnaldo Carvalho de Melo struct perf_sample sample; 7807b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel; 7811758af10SArnaldo Carvalho de Melo struct perf_session *session = top->session; 7828115d60cSArnaldo Carvalho de Melo union perf_event *event; 783743eb868SArnaldo Carvalho de Melo struct machine *machine; 784743eb868SArnaldo Carvalho de Melo u8 origin; 7855538becaSFrederic Weisbecker int ret; 78686470930SIngo Molnar 7871758af10SArnaldo Carvalho de Melo while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { 7880807d2d8SArnaldo Carvalho de Melo ret = perf_evlist__parse_sample(top->evlist, event, &sample); 7895538becaSFrederic Weisbecker if (ret) { 7905538becaSFrederic Weisbecker pr_err("Can't parse sample, err = %d\n", ret); 7918e50d384SZhouyi Zhou goto next_event; 7925538becaSFrederic Weisbecker } 79304391debSArnaldo Carvalho de Melo 7941758af10SArnaldo Carvalho de Melo evsel = perf_evlist__id2evsel(session->evlist, sample.id); 7957b27509fSArnaldo Carvalho de Melo assert(evsel != NULL); 7967b27509fSArnaldo Carvalho de Melo 797743eb868SArnaldo Carvalho de Melo origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 798743eb868SArnaldo Carvalho de Melo 7995b2bb75aSArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) 8001758af10SArnaldo Carvalho de Melo ++top->samples; 801743eb868SArnaldo Carvalho de Melo 802743eb868SArnaldo Carvalho de Melo switch (origin) { 803743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_USER: 8041758af10SArnaldo Carvalho de Melo ++top->us_samples; 8051758af10SArnaldo Carvalho de Melo if (top->hide_user_symbols) 8068e50d384SZhouyi Zhou goto next_event; 80734ba5122SArnaldo Carvalho de Melo machine = &session->machines.host; 808743eb868SArnaldo Carvalho de Melo break; 809743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_KERNEL: 8101758af10SArnaldo Carvalho de Melo ++top->kernel_samples; 8111758af10SArnaldo Carvalho de Melo if (top->hide_kernel_symbols) 8128e50d384SZhouyi Zhou goto next_event; 81334ba5122SArnaldo Carvalho de Melo machine = &session->machines.host; 814743eb868SArnaldo Carvalho de Melo break; 815743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_KERNEL: 8161758af10SArnaldo Carvalho de Melo ++top->guest_kernel_samples; 817ef89325fSAdrian Hunter machine = perf_session__find_machine(session, 818ef89325fSAdrian Hunter sample.pid); 819743eb868SArnaldo Carvalho de Melo break; 820743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_USER: 8211758af10SArnaldo Carvalho de Melo ++top->guest_us_samples; 822743eb868SArnaldo Carvalho de Melo /* 823743eb868SArnaldo Carvalho de Melo * TODO: we don't process guest user from host side 824743eb868SArnaldo Carvalho de Melo * except simple counting. 825743eb868SArnaldo Carvalho de Melo */ 826743eb868SArnaldo Carvalho de Melo /* Fall thru */ 827743eb868SArnaldo Carvalho de Melo default: 8288e50d384SZhouyi Zhou goto next_event; 829743eb868SArnaldo Carvalho de Melo } 830743eb868SArnaldo Carvalho de Melo 831743eb868SArnaldo Carvalho de Melo 8321758af10SArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) { 8331758af10SArnaldo Carvalho de Melo perf_event__process_sample(&top->tool, event, evsel, 8341758af10SArnaldo Carvalho de Melo &sample, machine); 8351758af10SArnaldo Carvalho de Melo } else if (event->header.type < PERF_RECORD_MAX) { 8367b27509fSArnaldo Carvalho de Melo hists__inc_nr_events(&evsel->hists, event->header.type); 837162f0befSFrederic Weisbecker machine__process_event(machine, event, &sample); 8387b27509fSArnaldo Carvalho de Melo } else 83928a6b6aaSArnaldo Carvalho de Melo ++session->stats.nr_unknown_events; 8408e50d384SZhouyi Zhou next_event: 8418e50d384SZhouyi Zhou perf_evlist__mmap_consume(top->evlist, idx); 84286470930SIngo Molnar } 84386470930SIngo Molnar } 84486470930SIngo Molnar 8451758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read(struct perf_top *top) 8462f01190aSFrederic Weisbecker { 84770db7533SArnaldo Carvalho de Melo int i; 8482f01190aSFrederic Weisbecker 8491758af10SArnaldo Carvalho de Melo for (i = 0; i < top->evlist->nr_mmaps; i++) 8501758af10SArnaldo Carvalho de Melo perf_top__mmap_read_idx(top, i); 8512f01190aSFrederic Weisbecker } 8522f01190aSFrederic Weisbecker 85311859e82SArnaldo Carvalho de Melo static int perf_top__start_counters(struct perf_top *top) 85472cb7013SArnaldo Carvalho de Melo { 85556e52e85SArnaldo Carvalho de Melo char msg[512]; 8566a4bb04cSJiri Olsa struct perf_evsel *counter; 8571758af10SArnaldo Carvalho de Melo struct perf_evlist *evlist = top->evlist; 858b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 859727ab04eSArnaldo Carvalho de Melo 8602376c67aSArnaldo Carvalho de Melo perf_evlist__config(evlist, opts); 86172cb7013SArnaldo Carvalho de Melo 8620050f7aaSArnaldo Carvalho de Melo evlist__for_each(evlist, counter) { 86372cb7013SArnaldo Carvalho de Melo try_again: 8641758af10SArnaldo Carvalho de Melo if (perf_evsel__open(counter, top->evlist->cpus, 8656a4bb04cSJiri Olsa top->evlist->threads) < 0) { 86656e52e85SArnaldo Carvalho de Melo if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { 86772cb7013SArnaldo Carvalho de Melo if (verbose) 868c0a54341SArnaldo Carvalho de Melo ui__warning("%s\n", msg); 86972cb7013SArnaldo Carvalho de Melo goto try_again; 87072cb7013SArnaldo Carvalho de Melo } 871c286c419SArnaldo Carvalho de Melo 87256e52e85SArnaldo Carvalho de Melo perf_evsel__open_strerror(counter, &opts->target, 87356e52e85SArnaldo Carvalho de Melo errno, msg, sizeof(msg)); 87456e52e85SArnaldo Carvalho de Melo ui__error("%s\n", msg); 875c286c419SArnaldo Carvalho de Melo goto out_err; 87672cb7013SArnaldo Carvalho de Melo } 87772cb7013SArnaldo Carvalho de Melo } 87870db7533SArnaldo Carvalho de Melo 8792376c67aSArnaldo Carvalho de Melo if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { 8803780f488SNamhyung Kim ui__error("Failed to mmap with %d (%s)\n", 881c286c419SArnaldo Carvalho de Melo errno, strerror(errno)); 882c286c419SArnaldo Carvalho de Melo goto out_err; 883c286c419SArnaldo Carvalho de Melo } 884c286c419SArnaldo Carvalho de Melo 88511859e82SArnaldo Carvalho de Melo return 0; 886c286c419SArnaldo Carvalho de Melo 887c286c419SArnaldo Carvalho de Melo out_err: 88811859e82SArnaldo Carvalho de Melo return -1; 88972cb7013SArnaldo Carvalho de Melo } 89072cb7013SArnaldo Carvalho de Melo 8918f0f684bSNamhyung Kim static int perf_top__setup_sample_type(struct perf_top *top __maybe_unused) 89219d4ac3cSArnaldo Carvalho de Melo { 8938f0f684bSNamhyung Kim if (!sort__has_sym) { 89419d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) { 8953780f488SNamhyung Kim ui__error("Selected -g but \"sym\" not present in --sort/-s."); 89619d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 89719d4ac3cSArnaldo Carvalho de Melo } 8982376c67aSArnaldo Carvalho de Melo } else if (callchain_param.mode != CHAIN_NONE) { 89919d4ac3cSArnaldo Carvalho de Melo if (callchain_register_param(&callchain_param) < 0) { 9003780f488SNamhyung Kim ui__error("Can't register callchain params.\n"); 90119d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 90219d4ac3cSArnaldo Carvalho de Melo } 90319d4ac3cSArnaldo Carvalho de Melo } 90419d4ac3cSArnaldo Carvalho de Melo 90519d4ac3cSArnaldo Carvalho de Melo return 0; 90619d4ac3cSArnaldo Carvalho de Melo } 90719d4ac3cSArnaldo Carvalho de Melo 9081758af10SArnaldo Carvalho de Melo static int __cmd_top(struct perf_top *top) 909716c69feSIngo Molnar { 910b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 911716c69feSIngo Molnar pthread_t thread; 91219d4ac3cSArnaldo Carvalho de Melo int ret; 913f5fc1412SJiri Olsa 9146a4d98d7SJiri Olsa top->session = perf_session__new(NULL, false, NULL); 9151758af10SArnaldo Carvalho de Melo if (top->session == NULL) 916b3165f41SArnaldo Carvalho de Melo return -ENOMEM; 917716c69feSIngo Molnar 91836035f78SAdrian Hunter machines__set_symbol_filter(&top->session->machines, symbol_filter); 91936035f78SAdrian Hunter 9200d3942dbSSukadev Bhattiprolu if (!objdump_path) { 9210d3942dbSSukadev Bhattiprolu ret = perf_session_env__lookup_objdump(&top->session->header.env); 9220d3942dbSSukadev Bhattiprolu if (ret) 9230d3942dbSSukadev Bhattiprolu goto out_delete; 9240d3942dbSSukadev Bhattiprolu } 9250d3942dbSSukadev Bhattiprolu 9261758af10SArnaldo Carvalho de Melo ret = perf_top__setup_sample_type(top); 92719d4ac3cSArnaldo Carvalho de Melo if (ret) 92819d4ac3cSArnaldo Carvalho de Melo goto out_delete; 92919d4ac3cSArnaldo Carvalho de Melo 930a33fbd56SArnaldo Carvalho de Melo machine__synthesize_threads(&top->session->machines.host, &opts->target, 931a33fbd56SArnaldo Carvalho de Melo top->evlist->threads, false); 93211859e82SArnaldo Carvalho de Melo ret = perf_top__start_counters(top); 93311859e82SArnaldo Carvalho de Melo if (ret) 93411859e82SArnaldo Carvalho de Melo goto out_delete; 93511859e82SArnaldo Carvalho de Melo 9361758af10SArnaldo Carvalho de Melo top->session->evlist = top->evlist; 9377b56cce2SArnaldo Carvalho de Melo perf_session__set_id_hdr_size(top->session); 93886470930SIngo Molnar 9392376c67aSArnaldo Carvalho de Melo /* 9402376c67aSArnaldo Carvalho de Melo * When perf is starting the traced process, all the events (apart from 9412376c67aSArnaldo Carvalho de Melo * group members) have enable_on_exec=1 set, so don't spoil it by 9422376c67aSArnaldo Carvalho de Melo * prematurely enabling them. 9432376c67aSArnaldo Carvalho de Melo * 9442376c67aSArnaldo Carvalho de Melo * XXX 'top' still doesn't start workloads like record, trace, but should, 9452376c67aSArnaldo Carvalho de Melo * so leave the check here. 9462376c67aSArnaldo Carvalho de Melo */ 947602ad878SArnaldo Carvalho de Melo if (!target__none(&opts->target)) 9482376c67aSArnaldo Carvalho de Melo perf_evlist__enable(top->evlist); 9492376c67aSArnaldo Carvalho de Melo 9502f01190aSFrederic Weisbecker /* Wait for a minimal set of events before starting the snapshot */ 9511758af10SArnaldo Carvalho de Melo poll(top->evlist->pollfd, top->evlist->nr_fds, 100); 9522f01190aSFrederic Weisbecker 9531758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 9542f01190aSFrederic Weisbecker 95511859e82SArnaldo Carvalho de Melo ret = -1; 956c0443df1SArnaldo Carvalho de Melo if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : 9571758af10SArnaldo Carvalho de Melo display_thread), top)) { 9583780f488SNamhyung Kim ui__error("Could not create display thread.\n"); 95911859e82SArnaldo Carvalho de Melo goto out_delete; 96086470930SIngo Molnar } 96186470930SIngo Molnar 9621758af10SArnaldo Carvalho de Melo if (top->realtime_prio) { 96386470930SIngo Molnar struct sched_param param; 96486470930SIngo Molnar 9651758af10SArnaldo Carvalho de Melo param.sched_priority = top->realtime_prio; 96686470930SIngo Molnar if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { 9673780f488SNamhyung Kim ui__error("Could not set realtime priority.\n"); 96811859e82SArnaldo Carvalho de Melo goto out_delete; 96986470930SIngo Molnar } 97086470930SIngo Molnar } 97186470930SIngo Molnar 97211859e82SArnaldo Carvalho de Melo while (!done) { 9731758af10SArnaldo Carvalho de Melo u64 hits = top->samples; 97486470930SIngo Molnar 9751758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 97686470930SIngo Molnar 9771758af10SArnaldo Carvalho de Melo if (hits == top->samples) 9781758af10SArnaldo Carvalho de Melo ret = poll(top->evlist->pollfd, top->evlist->nr_fds, 100); 97986470930SIngo Molnar } 98086470930SIngo Molnar 98111859e82SArnaldo Carvalho de Melo ret = 0; 98219d4ac3cSArnaldo Carvalho de Melo out_delete: 9831758af10SArnaldo Carvalho de Melo perf_session__delete(top->session); 9841758af10SArnaldo Carvalho de Melo top->session = NULL; 98519d4ac3cSArnaldo Carvalho de Melo 98611859e82SArnaldo Carvalho de Melo return ret; 98719d4ac3cSArnaldo Carvalho de Melo } 98819d4ac3cSArnaldo Carvalho de Melo 98919d4ac3cSArnaldo Carvalho de Melo static int 990ae779a63SJiri Olsa callchain_opt(const struct option *opt, const char *arg, int unset) 991ae779a63SJiri Olsa { 992ae779a63SJiri Olsa symbol_conf.use_callchain = true; 993ae779a63SJiri Olsa return record_callchain_opt(opt, arg, unset); 994ae779a63SJiri Olsa } 995ae779a63SJiri Olsa 996ae779a63SJiri Olsa static int 9971758af10SArnaldo Carvalho de Melo parse_callchain_opt(const struct option *opt, const char *arg, int unset) 99819d4ac3cSArnaldo Carvalho de Melo { 99919d4ac3cSArnaldo Carvalho de Melo symbol_conf.use_callchain = true; 10002376c67aSArnaldo Carvalho de Melo return record_parse_callchain_opt(opt, arg, unset); 100186470930SIngo Molnar } 100286470930SIngo Molnar 1003eb853e80SJiri Olsa static int perf_top_config(const char *var, const char *value, void *cb) 1004eb853e80SJiri Olsa { 1005eb853e80SJiri Olsa struct perf_top *top = cb; 1006eb853e80SJiri Olsa 1007eb853e80SJiri Olsa if (!strcmp(var, "top.call-graph")) 1008eb853e80SJiri Olsa return record_parse_callchain(value, &top->record_opts); 1009104ac991SNamhyung Kim if (!strcmp(var, "top.children")) { 1010104ac991SNamhyung Kim symbol_conf.cumulate_callchain = perf_config_bool(var, value); 1011104ac991SNamhyung Kim return 0; 1012104ac991SNamhyung Kim } 1013eb853e80SJiri Olsa 1014eb853e80SJiri Olsa return perf_default_config(var, value, cb); 1015eb853e80SJiri Olsa } 1016eb853e80SJiri Olsa 1017fa5df943SNamhyung Kim static int 1018fa5df943SNamhyung Kim parse_percent_limit(const struct option *opt, const char *arg, 1019fa5df943SNamhyung Kim int unset __maybe_unused) 1020fa5df943SNamhyung Kim { 1021fa5df943SNamhyung Kim struct perf_top *top = opt->value; 1022fa5df943SNamhyung Kim 1023fa5df943SNamhyung Kim top->min_percent = strtof(arg, NULL); 1024fa5df943SNamhyung Kim return 0; 1025fa5df943SNamhyung Kim } 1026fa5df943SNamhyung Kim 10271d037ca1SIrina Tirdea int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) 10281758af10SArnaldo Carvalho de Melo { 1029d37a92dcSNamhyung Kim int status = -1; 103016ad2ffbSNamhyung Kim char errbuf[BUFSIZ]; 10311758af10SArnaldo Carvalho de Melo struct perf_top top = { 10321758af10SArnaldo Carvalho de Melo .count_filter = 5, 10331758af10SArnaldo Carvalho de Melo .delay_secs = 2, 10342376c67aSArnaldo Carvalho de Melo .record_opts = { 10352376c67aSArnaldo Carvalho de Melo .mmap_pages = UINT_MAX, 10362376c67aSArnaldo Carvalho de Melo .user_freq = UINT_MAX, 10372376c67aSArnaldo Carvalho de Melo .user_interval = ULLONG_MAX, 1038447a6013SArnaldo Carvalho de Melo .freq = 4000, /* 4 KHz */ 1039d1cb9fceSNamhyung Kim .target = { 1040d1cb9fceSNamhyung Kim .uses_mmap = true, 1041d1cb9fceSNamhyung Kim }, 10422376c67aSArnaldo Carvalho de Melo }, 10435dbb6e81SWaiman Long .max_stack = PERF_MAX_STACK_DEPTH, 10442376c67aSArnaldo Carvalho de Melo .sym_pcnt_filter = 5, 10451758af10SArnaldo Carvalho de Melo }; 1046b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top.record_opts; 1047602ad878SArnaldo Carvalho de Melo struct target *target = &opts->target; 10481758af10SArnaldo Carvalho de Melo const struct option options[] = { 10498c3e10ebSArnaldo Carvalho de Melo OPT_CALLBACK('e', "event", &top.evlist, "event", 105086470930SIngo Molnar "event selector. use 'perf list' to list available events", 1051f120f9d5SJiri Olsa parse_events_option), 10522376c67aSArnaldo Carvalho de Melo OPT_U64('c', "count", &opts->user_interval, "event period to sample"), 10532376c67aSArnaldo Carvalho de Melo OPT_STRING('p', "pid", &target->pid, "pid", 1054d6d901c2SZhang, Yanmin "profile events on existing process id"), 10552376c67aSArnaldo Carvalho de Melo OPT_STRING('t', "tid", &target->tid, "tid", 1056d6d901c2SZhang, Yanmin "profile events on existing thread id"), 10572376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('a', "all-cpus", &target->system_wide, 105886470930SIngo Molnar "system-wide collection from all CPUs"), 10592376c67aSArnaldo Carvalho de Melo OPT_STRING('C', "cpu", &target->cpu_list, "cpu", 1060c45c6ea2SStephane Eranian "list of cpus to monitor"), 1061b32d133aSArnaldo Carvalho de Melo OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1062b32d133aSArnaldo Carvalho de Melo "file", "vmlinux pathname"), 1063fc2be696SWilly Tarreau OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, 1064fc2be696SWilly Tarreau "don't load vmlinux even if found"), 10658c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, 10668ffcda17SArnaldo Carvalho de Melo "hide kernel symbols"), 1067994a1f78SJiri Olsa OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", 1068994a1f78SJiri Olsa "number of mmap data pages", 1069994a1f78SJiri Olsa perf_evlist__parse_mmap_pages), 10701758af10SArnaldo Carvalho de Melo OPT_INTEGER('r', "realtime", &top.realtime_prio, 107186470930SIngo Molnar "collect data with this RT SCHED_FIFO priority"), 10728c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('d', "delay", &top.delay_secs, 107386470930SIngo Molnar "number of seconds to delay between refreshes"), 10741758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, 107586470930SIngo Molnar "dump the symbol table used for profiling"), 10768c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('f', "count-filter", &top.count_filter, 107786470930SIngo Molnar "only display functions with more events than this"), 1078bf80669eSDavid Ahern OPT_BOOLEAN(0, "group", &opts->group, 107986470930SIngo Molnar "put the counters into a counter group"), 10802376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, 10812376c67aSArnaldo Carvalho de Melo "child tasks do not inherit counters"), 10821758af10SArnaldo Carvalho de Melo OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", 10836cff0e8dSKirill Smelkov "symbol to annotate"), 10842376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), 10852376c67aSArnaldo Carvalho de Melo OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), 10868c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('E', "entries", &top.print_entries, 108786470930SIngo Molnar "display this many functions"), 10888c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, 10898ffcda17SArnaldo Carvalho de Melo "hide user symbols"), 10901758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), 10911758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), 1092c0555642SIan Munsie OPT_INCR('v', "verbose", &verbose, 10933da297a6SIngo Molnar "be more verbose (show counter open errors, etc)"), 1094ab81f3fdSArnaldo Carvalho de Melo OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 1095a2ce067eSNamhyung Kim "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." 1096a2ce067eSNamhyung Kim " Please refer the man page for the complete list."), 10976fe8c26dSNamhyung Kim OPT_STRING(0, "fields", &field_order, "key[,keys...]", 10986fe8c26dSNamhyung Kim "output field(s): overhead, period, sample plus all of sort keys"), 1099ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 1100ab81f3fdSArnaldo Carvalho de Melo "Show a column with the number of samples"), 1101bf80669eSDavid Ahern OPT_CALLBACK_NOOPT('g', NULL, &top.record_opts, 1102ae779a63SJiri Olsa NULL, "enables call-graph recording", 1103ae779a63SJiri Olsa &callchain_opt), 1104ae779a63SJiri Olsa OPT_CALLBACK(0, "call-graph", &top.record_opts, 11052376c67aSArnaldo Carvalho de Melo "mode[,dump_size]", record_callchain_help, 1106ae779a63SJiri Olsa &parse_callchain_opt), 11071432ec34SNamhyung Kim OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, 11081432ec34SNamhyung Kim "Accumulate callchains of children and show total overhead as well"), 11095dbb6e81SWaiman Long OPT_INTEGER(0, "max-stack", &top.max_stack, 11105dbb6e81SWaiman Long "Set the maximum stack depth when parsing the callchain. " 11115dbb6e81SWaiman Long "Default: " __stringify(PERF_MAX_STACK_DEPTH)), 1112b21484f1SGreg Price OPT_CALLBACK(0, "ignore-callees", NULL, "regex", 1113b21484f1SGreg Price "ignore callees of these functions in call graphs", 1114b21484f1SGreg Price report_parse_ignore_callees_opt), 1115ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 1116ab81f3fdSArnaldo Carvalho de Melo "Show a column with the sum of periods"), 1117ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 1118ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these dsos"), 1119ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1120ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these comms"), 1121ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1122ab81f3fdSArnaldo Carvalho de Melo "only consider these symbols"), 112364c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, 112464c6f0c7SArnaldo Carvalho de Melo "Interleave source code with assembly code (default)"), 112564c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, 112664c6f0c7SArnaldo Carvalho de Melo "Display raw encoding of assembly instructions (default)"), 11270d3942dbSSukadev Bhattiprolu OPT_STRING(0, "objdump", &objdump_path, "path", 11280d3942dbSSukadev Bhattiprolu "objdump binary to use for disassembly and annotations"), 112964c6f0c7SArnaldo Carvalho de Melo OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", 113064c6f0c7SArnaldo Carvalho de Melo "Specify disassembler style (e.g. -M intel for intel syntax)"), 11312376c67aSArnaldo Carvalho de Melo OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), 1132fa5df943SNamhyung Kim OPT_CALLBACK(0, "percent-limit", &top, "percent", 1133fa5df943SNamhyung Kim "Don't show entries under that percent", parse_percent_limit), 113433db4568SNamhyung Kim OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", 113533db4568SNamhyung Kim "How to display percentage of filtered entries", parse_filter_percentage), 1136cf59002fSNamhyung Kim OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, 1137cf59002fSNamhyung Kim "width[,width...]", 1138cf59002fSNamhyung Kim "don't try to adjust column width, use these fixed values"), 113986470930SIngo Molnar OPT_END() 114086470930SIngo Molnar }; 1141be772842SArnaldo Carvalho de Melo const char * const top_usage[] = { 1142be772842SArnaldo Carvalho de Melo "perf top [<options>]", 1143be772842SArnaldo Carvalho de Melo NULL 1144be772842SArnaldo Carvalho de Melo }; 114586470930SIngo Molnar 1146334fe7a3SNamhyung Kim top.evlist = perf_evlist__new(); 11478c3e10ebSArnaldo Carvalho de Melo if (top.evlist == NULL) 1148361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1149361c99a6SArnaldo Carvalho de Melo 1150eb853e80SJiri Olsa perf_config(perf_top_config, &top); 1151eb853e80SJiri Olsa 115286470930SIngo Molnar argc = parse_options(argc, argv, options, top_usage, 0); 115386470930SIngo Molnar if (argc) 115486470930SIngo Molnar usage_with_options(top_usage, options); 115586470930SIngo Molnar 1156512ae1bdSNamhyung Kim sort__mode = SORT_MODE__TOP; 11573a5714f8SNamhyung Kim /* display thread wants entries to be collapsed in a different tree */ 11583a5714f8SNamhyung Kim sort__need_collapse = 1; 11593a5714f8SNamhyung Kim 11606fe8c26dSNamhyung Kim if (setup_sorting() < 0) { 11616fe8c26dSNamhyung Kim if (sort_order) 11626fe8c26dSNamhyung Kim parse_options_usage(top_usage, options, "s", 1); 11636fe8c26dSNamhyung Kim if (field_order) 11646fe8c26dSNamhyung Kim parse_options_usage(sort_order ? NULL : top_usage, 11656fe8c26dSNamhyung Kim options, "fields", 0); 11666fe8c26dSNamhyung Kim goto out_delete_evlist; 11676fe8c26dSNamhyung Kim } 116822af969eSNamhyung Kim 11691758af10SArnaldo Carvalho de Melo if (top.use_stdio) 1170c0443df1SArnaldo Carvalho de Melo use_browser = 0; 11711758af10SArnaldo Carvalho de Melo else if (top.use_tui) 1172c0443df1SArnaldo Carvalho de Melo use_browser = 1; 1173c0443df1SArnaldo Carvalho de Melo 1174c0443df1SArnaldo Carvalho de Melo setup_browser(false); 1175c0443df1SArnaldo Carvalho de Melo 1176602ad878SArnaldo Carvalho de Melo status = target__validate(target); 117716ad2ffbSNamhyung Kim if (status) { 1178602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1179ea432a8bSIngo Molnar ui__warning("%s\n", errbuf); 118016ad2ffbSNamhyung Kim } 11814bd0f2d2SNamhyung Kim 1182602ad878SArnaldo Carvalho de Melo status = target__parse_uid(target); 118316ad2ffbSNamhyung Kim if (status) { 118416ad2ffbSNamhyung Kim int saved_errno = errno; 118516ad2ffbSNamhyung Kim 1186602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1187ea432a8bSIngo Molnar ui__error("%s\n", errbuf); 118816ad2ffbSNamhyung Kim 118916ad2ffbSNamhyung Kim status = -saved_errno; 11900d37aa34SArnaldo Carvalho de Melo goto out_delete_evlist; 119116ad2ffbSNamhyung Kim } 11920d37aa34SArnaldo Carvalho de Melo 1193602ad878SArnaldo Carvalho de Melo if (target__none(target)) 11942376c67aSArnaldo Carvalho de Melo target->system_wide = true; 119510b47d54SArnaldo Carvalho de Melo 11962376c67aSArnaldo Carvalho de Melo if (perf_evlist__create_maps(top.evlist, target) < 0) 11977e2ed097SArnaldo Carvalho de Melo usage_with_options(top_usage, options); 11987e2ed097SArnaldo Carvalho de Melo 11998c3e10ebSArnaldo Carvalho de Melo if (!top.evlist->nr_entries && 12008c3e10ebSArnaldo Carvalho de Melo perf_evlist__add_default(top.evlist) < 0) { 12013780f488SNamhyung Kim ui__error("Not enough memory for event selector list\n"); 120203ad9747SArnaldo Carvalho de Melo goto out_delete_evlist; 120369aad6f1SArnaldo Carvalho de Melo } 12045a8e5a30SArnaldo Carvalho de Melo 1205d04b35f8SArnaldo Carvalho de Melo symbol_conf.nr_events = top.evlist->nr_entries; 1206d04b35f8SArnaldo Carvalho de Melo 12078c3e10ebSArnaldo Carvalho de Melo if (top.delay_secs < 1) 12088c3e10ebSArnaldo Carvalho de Melo top.delay_secs = 1; 120986470930SIngo Molnar 1210b4006796SArnaldo Carvalho de Melo if (record_opts__config(opts)) { 12112376c67aSArnaldo Carvalho de Melo status = -EINVAL; 121203ad9747SArnaldo Carvalho de Melo goto out_delete_evlist; 121369aad6f1SArnaldo Carvalho de Melo } 121469aad6f1SArnaldo Carvalho de Melo 12150c21f736SArnaldo Carvalho de Melo top.sym_evsel = perf_evlist__first(top.evlist); 1216cc841580SArnaldo Carvalho de Melo 12171432ec34SNamhyung Kim if (!symbol_conf.use_callchain) { 12181432ec34SNamhyung Kim symbol_conf.cumulate_callchain = false; 12191432ec34SNamhyung Kim perf_hpp__cancel_cumulate(); 12201432ec34SNamhyung Kim } 12211432ec34SNamhyung Kim 1222ab81f3fdSArnaldo Carvalho de Melo symbol_conf.priv_size = sizeof(struct annotation); 122369aad6f1SArnaldo Carvalho de Melo 122469aad6f1SArnaldo Carvalho de Melo symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); 122569aad6f1SArnaldo Carvalho de Melo if (symbol__init() < 0) 122669aad6f1SArnaldo Carvalho de Melo return -1; 122769aad6f1SArnaldo Carvalho de Melo 122808e71542SNamhyung Kim sort__setup_elide(stdout); 1229ab81f3fdSArnaldo Carvalho de Melo 12301758af10SArnaldo Carvalho de Melo get_term_dimensions(&top.winsize); 12318c3e10ebSArnaldo Carvalho de Melo if (top.print_entries == 0) { 12321758af10SArnaldo Carvalho de Melo struct sigaction act = { 12331758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 12341758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 12351758af10SArnaldo Carvalho de Melo }; 12361758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(&top); 12371758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 12383b6ed988SArnaldo Carvalho de Melo } 12393b6ed988SArnaldo Carvalho de Melo 12401758af10SArnaldo Carvalho de Melo status = __cmd_top(&top); 1241806fb630SArnaldo Carvalho de Melo 12420d37aa34SArnaldo Carvalho de Melo out_delete_evlist: 12438c3e10ebSArnaldo Carvalho de Melo perf_evlist__delete(top.evlist); 124469aad6f1SArnaldo Carvalho de Melo 124569aad6f1SArnaldo Carvalho de Melo return status; 124686470930SIngo Molnar } 1247