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 19931d68e7bSArnaldo Carvalho de Melo if (err == -ERANGE && !he->ms.map->erange_warned) 20031d68e7bSArnaldo Carvalho de Melo ui__warn_map_erange(he->ms.map, sym, ip); 201b66d8c0cSArnaldo Carvalho de Melo else if (err == -ENOMEM) { 202b66d8c0cSArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 203b66d8c0cSArnaldo Carvalho de Melo sym->name); 204b66d8c0cSArnaldo Carvalho de Melo sleep(1); 205b66d8c0cSArnaldo Carvalho de Melo } 206923c42c1SMike Galbraith } 207923c42c1SMike Galbraith 2081758af10SArnaldo Carvalho de Melo static void perf_top__show_details(struct perf_top *top) 209923c42c1SMike Galbraith { 2101758af10SArnaldo Carvalho de Melo struct hist_entry *he = top->sym_filter_entry; 211ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 212923c42c1SMike Galbraith struct symbol *symbol; 21336532461SArnaldo Carvalho de Melo int more; 214923c42c1SMike Galbraith 215ab81f3fdSArnaldo Carvalho de Melo if (!he) 216923c42c1SMike Galbraith return; 217923c42c1SMike Galbraith 218ab81f3fdSArnaldo Carvalho de Melo symbol = he->ms.sym; 219ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(symbol); 220ce6f4fabSArnaldo Carvalho de Melo 221ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 222ce6f4fabSArnaldo Carvalho de Melo 223ce6f4fabSArnaldo Carvalho de Melo if (notes->src == NULL) 224ce6f4fabSArnaldo Carvalho de Melo goto out_unlock; 225923c42c1SMike Galbraith 2267289f83cSArnaldo Carvalho de Melo printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); 2271758af10SArnaldo Carvalho de Melo printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); 228923c42c1SMike Galbraith 229db8fd07aSNamhyung Kim more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, 2301758af10SArnaldo Carvalho de Melo 0, top->sym_pcnt_filter, top->print_entries, 4); 2311758af10SArnaldo Carvalho de Melo if (top->zero) 2321758af10SArnaldo Carvalho de Melo symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); 23336532461SArnaldo Carvalho de Melo else 2341758af10SArnaldo Carvalho de Melo symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); 23536532461SArnaldo Carvalho de Melo if (more != 0) 236923c42c1SMike Galbraith printf("%d lines not displayed, maybe increase display entries [e]\n", more); 237ce6f4fabSArnaldo Carvalho de Melo out_unlock: 238ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 239923c42c1SMike Galbraith } 24086470930SIngo Molnar 241743eb868SArnaldo Carvalho de Melo static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel, 242ab81f3fdSArnaldo Carvalho de Melo struct addr_location *al, 243743eb868SArnaldo Carvalho de Melo struct perf_sample *sample) 24486470930SIngo Molnar { 245ab81f3fdSArnaldo Carvalho de Melo struct hist_entry *he; 246ab81f3fdSArnaldo Carvalho de Melo 24727a0dcb7SNamhyung Kim pthread_mutex_lock(&evsel->hists.lock); 24841a4e6e2SNamhyung Kim he = __hists__add_entry(&evsel->hists, al, NULL, NULL, NULL, 24941a4e6e2SNamhyung Kim sample->period, sample->weight, 25041a4e6e2SNamhyung Kim sample->transaction); 25127a0dcb7SNamhyung Kim pthread_mutex_unlock(&evsel->hists.lock); 252ab81f3fdSArnaldo Carvalho de Melo if (he == NULL) 253ab81f3fdSArnaldo Carvalho de Melo return NULL; 254ab81f3fdSArnaldo Carvalho de Melo 255ab81f3fdSArnaldo Carvalho de Melo hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); 2561ab1fa5dSNamhyung Kim if (!he->filtered) 2571ab1fa5dSNamhyung Kim evsel->hists.stats.nr_non_filtered_samples++; 2581ab1fa5dSNamhyung Kim 259ab81f3fdSArnaldo Carvalho de Melo return he; 26086470930SIngo Molnar } 26186470930SIngo Molnar 2621758af10SArnaldo Carvalho de Melo static void perf_top__print_sym_table(struct perf_top *top) 26386470930SIngo Molnar { 2648c3e10ebSArnaldo Carvalho de Melo char bf[160]; 2658c3e10ebSArnaldo Carvalho de Melo int printed = 0; 2661758af10SArnaldo Carvalho de Melo const int win_width = top->winsize.ws_col - 1; 26786470930SIngo Molnar 26886470930SIngo Molnar puts(CONSOLE_CLEAR); 26986470930SIngo Molnar 2701758af10SArnaldo Carvalho de Melo perf_top__header_snprintf(top, bf, sizeof(bf)); 2718c3e10ebSArnaldo Carvalho de Melo printf("%s\n", bf); 27286470930SIngo Molnar 2731758af10SArnaldo Carvalho de Melo perf_top__reset_sample_counters(top); 27486470930SIngo Molnar 2751a105f74SArnaldo Carvalho de Melo printf("%-*.*s\n", win_width, win_width, graph_dotted_line); 27686470930SIngo Molnar 2771758af10SArnaldo Carvalho de Melo if (top->sym_evsel->hists.stats.nr_lost_warned != 2781758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) { 2791758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_lost_warned = 2801758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]; 2817b27509fSArnaldo Carvalho de Melo color_fprintf(stdout, PERF_COLOR_RED, 2827b27509fSArnaldo Carvalho de Melo "WARNING: LOST %d chunks, Check IO/CPU overload", 2831758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_lost_warned); 284ab81f3fdSArnaldo Carvalho de Melo ++printed; 28593fc64f1SArnaldo Carvalho de Melo } 28693fc64f1SArnaldo Carvalho de Melo 2871758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 2881758af10SArnaldo Carvalho de Melo perf_top__show_details(top); 289923c42c1SMike Galbraith return; 290923c42c1SMike Galbraith } 291923c42c1SMike Galbraith 292c1fb5651SNamhyung Kim hists__collapse_resort(&top->sym_evsel->hists, NULL); 2933a5714f8SNamhyung Kim hists__output_resort(&top->sym_evsel->hists); 2943a5714f8SNamhyung Kim hists__decay_entries(&top->sym_evsel->hists, 2951758af10SArnaldo Carvalho de Melo top->hide_user_symbols, 2961758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols); 2971758af10SArnaldo Carvalho de Melo hists__output_recalc_col_len(&top->sym_evsel->hists, 298933cbb1cSNamhyung Kim top->print_entries - printed); 2991a105f74SArnaldo Carvalho de Melo putchar('\n'); 30041724e4cSJiri Olsa hists__fprintf(&top->sym_evsel->hists, false, 301fa5df943SNamhyung Kim top->print_entries - printed, win_width, 302fa5df943SNamhyung Kim top->min_percent, stdout); 30386470930SIngo Molnar } 30486470930SIngo Molnar 305923c42c1SMike Galbraith static void prompt_integer(int *target, const char *msg) 306923c42c1SMike Galbraith { 307923c42c1SMike Galbraith char *buf = malloc(0), *p; 308923c42c1SMike Galbraith size_t dummy = 0; 309923c42c1SMike Galbraith int tmp; 310923c42c1SMike Galbraith 311923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 312923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 313923c42c1SMike Galbraith return; 314923c42c1SMike Galbraith 315923c42c1SMike Galbraith p = strchr(buf, '\n'); 316923c42c1SMike Galbraith if (p) 317923c42c1SMike Galbraith *p = 0; 318923c42c1SMike Galbraith 319923c42c1SMike Galbraith p = buf; 320923c42c1SMike Galbraith while(*p) { 321923c42c1SMike Galbraith if (!isdigit(*p)) 322923c42c1SMike Galbraith goto out_free; 323923c42c1SMike Galbraith p++; 324923c42c1SMike Galbraith } 325923c42c1SMike Galbraith tmp = strtoul(buf, NULL, 10); 326923c42c1SMike Galbraith *target = tmp; 327923c42c1SMike Galbraith out_free: 328923c42c1SMike Galbraith free(buf); 329923c42c1SMike Galbraith } 330923c42c1SMike Galbraith 331923c42c1SMike Galbraith static void prompt_percent(int *target, const char *msg) 332923c42c1SMike Galbraith { 333923c42c1SMike Galbraith int tmp = 0; 334923c42c1SMike Galbraith 335923c42c1SMike Galbraith prompt_integer(&tmp, msg); 336923c42c1SMike Galbraith if (tmp >= 0 && tmp <= 100) 337923c42c1SMike Galbraith *target = tmp; 338923c42c1SMike Galbraith } 339923c42c1SMike Galbraith 3401758af10SArnaldo Carvalho de Melo static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) 341923c42c1SMike Galbraith { 342923c42c1SMike Galbraith char *buf = malloc(0), *p; 3431758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; 344ab81f3fdSArnaldo Carvalho de Melo struct rb_node *next; 345923c42c1SMike Galbraith size_t dummy = 0; 346923c42c1SMike Galbraith 347923c42c1SMike Galbraith /* zero counters of active symbol */ 348923c42c1SMike Galbraith if (syme) { 349923c42c1SMike Galbraith __zero_source_counters(syme); 3501758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 351923c42c1SMike Galbraith } 352923c42c1SMike Galbraith 353923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 354923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 355923c42c1SMike Galbraith goto out_free; 356923c42c1SMike Galbraith 357923c42c1SMike Galbraith p = strchr(buf, '\n'); 358923c42c1SMike Galbraith if (p) 359923c42c1SMike Galbraith *p = 0; 360923c42c1SMike Galbraith 3611758af10SArnaldo Carvalho de Melo next = rb_first(&top->sym_evsel->hists.entries); 362ab81f3fdSArnaldo Carvalho de Melo while (next) { 363ab81f3fdSArnaldo Carvalho de Melo n = rb_entry(next, struct hist_entry, rb_node); 364ab81f3fdSArnaldo Carvalho de Melo if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { 365ab81f3fdSArnaldo Carvalho de Melo found = n; 366923c42c1SMike Galbraith break; 367923c42c1SMike Galbraith } 368ab81f3fdSArnaldo Carvalho de Melo next = rb_next(&n->rb_node); 369923c42c1SMike Galbraith } 370923c42c1SMike Galbraith 371923c42c1SMike Galbraith if (!found) { 37266aeb6d5SKirill Smelkov fprintf(stderr, "Sorry, %s is not active.\n", buf); 373923c42c1SMike Galbraith sleep(1); 374923c42c1SMike Galbraith } else 3751758af10SArnaldo Carvalho de Melo perf_top__parse_source(top, found); 376923c42c1SMike Galbraith 377923c42c1SMike Galbraith out_free: 378923c42c1SMike Galbraith free(buf); 379923c42c1SMike Galbraith } 380923c42c1SMike Galbraith 3811758af10SArnaldo Carvalho de Melo static void perf_top__print_mapped_keys(struct perf_top *top) 382923c42c1SMike Galbraith { 383091bd2e9SMike Galbraith char *name = NULL; 384091bd2e9SMike Galbraith 3851758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 3861758af10SArnaldo Carvalho de Melo struct symbol *sym = top->sym_filter_entry->ms.sym; 387091bd2e9SMike Galbraith name = sym->name; 388091bd2e9SMike Galbraith } 389091bd2e9SMike Galbraith 390091bd2e9SMike Galbraith fprintf(stdout, "\nMapped keys:\n"); 3911758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); 3921758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); 393091bd2e9SMike Galbraith 3941758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) 3957289f83cSArnaldo Carvalho de Melo fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); 396091bd2e9SMike Galbraith 3971758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); 398091bd2e9SMike Galbraith 3991758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); 400091bd2e9SMike Galbraith fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); 401091bd2e9SMike Galbraith fprintf(stdout, "\t[S] stop annotation.\n"); 402091bd2e9SMike Galbraith 4038ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4048ffcda17SArnaldo Carvalho de Melo "\t[K] hide kernel_symbols symbols. \t(%s)\n", 4051758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols ? "yes" : "no"); 4068ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4078ffcda17SArnaldo Carvalho de Melo "\t[U] hide user symbols. \t(%s)\n", 4081758af10SArnaldo Carvalho de Melo top->hide_user_symbols ? "yes" : "no"); 4091758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); 410091bd2e9SMike Galbraith fprintf(stdout, "\t[qQ] quit.\n"); 411091bd2e9SMike Galbraith } 412091bd2e9SMike Galbraith 4131758af10SArnaldo Carvalho de Melo static int perf_top__key_mapped(struct perf_top *top, int c) 414091bd2e9SMike Galbraith { 415091bd2e9SMike Galbraith switch (c) { 416091bd2e9SMike Galbraith case 'd': 417091bd2e9SMike Galbraith case 'e': 418091bd2e9SMike Galbraith case 'f': 419091bd2e9SMike Galbraith case 'z': 420091bd2e9SMike Galbraith case 'q': 421091bd2e9SMike Galbraith case 'Q': 4228ffcda17SArnaldo Carvalho de Melo case 'K': 4238ffcda17SArnaldo Carvalho de Melo case 'U': 4246cff0e8dSKirill Smelkov case 'F': 4256cff0e8dSKirill Smelkov case 's': 4266cff0e8dSKirill Smelkov case 'S': 427091bd2e9SMike Galbraith return 1; 428091bd2e9SMike Galbraith case 'E': 4291758af10SArnaldo Carvalho de Melo return top->evlist->nr_entries > 1 ? 1 : 0; 43083a0944fSIngo Molnar default: 43183a0944fSIngo Molnar break; 432091bd2e9SMike Galbraith } 433091bd2e9SMike Galbraith 434091bd2e9SMike Galbraith return 0; 435923c42c1SMike Galbraith } 436923c42c1SMike Galbraith 43711859e82SArnaldo Carvalho de Melo static bool perf_top__handle_keypress(struct perf_top *top, int c) 438923c42c1SMike Galbraith { 43911859e82SArnaldo Carvalho de Melo bool ret = true; 44011859e82SArnaldo Carvalho de Melo 4411758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) { 442091bd2e9SMike Galbraith struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 443091bd2e9SMike Galbraith struct termios tc, save; 444091bd2e9SMike Galbraith 4451758af10SArnaldo Carvalho de Melo perf_top__print_mapped_keys(top); 446091bd2e9SMike Galbraith fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); 447091bd2e9SMike Galbraith fflush(stdout); 448091bd2e9SMike Galbraith 449091bd2e9SMike Galbraith tcgetattr(0, &save); 450091bd2e9SMike Galbraith tc = save; 451091bd2e9SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 452091bd2e9SMike Galbraith tc.c_cc[VMIN] = 0; 453091bd2e9SMike Galbraith tc.c_cc[VTIME] = 0; 454091bd2e9SMike Galbraith tcsetattr(0, TCSANOW, &tc); 455091bd2e9SMike Galbraith 456091bd2e9SMike Galbraith poll(&stdin_poll, 1, -1); 457091bd2e9SMike Galbraith c = getc(stdin); 458091bd2e9SMike Galbraith 459091bd2e9SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 4601758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) 46111859e82SArnaldo Carvalho de Melo return ret; 462091bd2e9SMike Galbraith } 463091bd2e9SMike Galbraith 464923c42c1SMike Galbraith switch (c) { 465923c42c1SMike Galbraith case 'd': 4661758af10SArnaldo Carvalho de Melo prompt_integer(&top->delay_secs, "Enter display delay"); 4671758af10SArnaldo Carvalho de Melo if (top->delay_secs < 1) 4681758af10SArnaldo Carvalho de Melo top->delay_secs = 1; 469923c42c1SMike Galbraith break; 470923c42c1SMike Galbraith case 'e': 4711758af10SArnaldo Carvalho de Melo prompt_integer(&top->print_entries, "Enter display entries (lines)"); 4721758af10SArnaldo Carvalho de Melo if (top->print_entries == 0) { 4731758af10SArnaldo Carvalho de Melo struct sigaction act = { 4741758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 4751758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 4761758af10SArnaldo Carvalho de Melo }; 4771758af10SArnaldo Carvalho de Melo perf_top__sig_winch(SIGWINCH, NULL, top); 4781758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 479509605dbSStephane Eranian } else { 4803b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, SIG_DFL); 481509605dbSStephane Eranian } 482923c42c1SMike Galbraith break; 483923c42c1SMike Galbraith case 'E': 4841758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) { 485ce2d17caSAkihiro Nagai /* Select 0 as the default event: */ 486ce2d17caSAkihiro Nagai int counter = 0; 487ce2d17caSAkihiro Nagai 488923c42c1SMike Galbraith fprintf(stderr, "\nAvailable events:"); 48969aad6f1SArnaldo Carvalho de Melo 4900050f7aaSArnaldo Carvalho de Melo evlist__for_each(top->evlist, top->sym_evsel) 4917289f83cSArnaldo Carvalho de Melo fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); 492923c42c1SMike Galbraith 493ec52d976SArnaldo Carvalho de Melo prompt_integer(&counter, "Enter details event counter"); 494923c42c1SMike Galbraith 4951758af10SArnaldo Carvalho de Melo if (counter >= top->evlist->nr_entries) { 4960c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 4977289f83cSArnaldo Carvalho de Melo fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); 498923c42c1SMike Galbraith sleep(1); 49969aad6f1SArnaldo Carvalho de Melo break; 500923c42c1SMike Galbraith } 5010050f7aaSArnaldo Carvalho de Melo evlist__for_each(top->evlist, top->sym_evsel) 5021758af10SArnaldo Carvalho de Melo if (top->sym_evsel->idx == counter) 50369aad6f1SArnaldo Carvalho de Melo break; 504ec52d976SArnaldo Carvalho de Melo } else 5050c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 506923c42c1SMike Galbraith break; 507923c42c1SMike Galbraith case 'f': 5081758af10SArnaldo Carvalho de Melo prompt_integer(&top->count_filter, "Enter display event count filter"); 509923c42c1SMike Galbraith break; 510923c42c1SMike Galbraith case 'F': 5111758af10SArnaldo Carvalho de Melo prompt_percent(&top->sym_pcnt_filter, 5121758af10SArnaldo Carvalho de Melo "Enter details display event filter (percent)"); 513923c42c1SMike Galbraith break; 5148ffcda17SArnaldo Carvalho de Melo case 'K': 5151758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols = !top->hide_kernel_symbols; 5168ffcda17SArnaldo Carvalho de Melo break; 517923c42c1SMike Galbraith case 'q': 518923c42c1SMike Galbraith case 'Q': 519923c42c1SMike Galbraith printf("exiting.\n"); 5201758af10SArnaldo Carvalho de Melo if (top->dump_symtab) 5211758af10SArnaldo Carvalho de Melo perf_session__fprintf_dsos(top->session, stderr); 52211859e82SArnaldo Carvalho de Melo ret = false; 52311859e82SArnaldo Carvalho de Melo break; 524923c42c1SMike Galbraith case 's': 5251758af10SArnaldo Carvalho de Melo perf_top__prompt_symbol(top, "Enter details symbol"); 526923c42c1SMike Galbraith break; 527923c42c1SMike Galbraith case 'S': 5281758af10SArnaldo Carvalho de Melo if (!top->sym_filter_entry) 529923c42c1SMike Galbraith break; 530923c42c1SMike Galbraith else { 5311758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry; 532923c42c1SMike Galbraith 5331758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 534923c42c1SMike Galbraith __zero_source_counters(syme); 535923c42c1SMike Galbraith } 536923c42c1SMike Galbraith break; 5378ffcda17SArnaldo Carvalho de Melo case 'U': 5381758af10SArnaldo Carvalho de Melo top->hide_user_symbols = !top->hide_user_symbols; 5398ffcda17SArnaldo Carvalho de Melo break; 540923c42c1SMike Galbraith case 'z': 5411758af10SArnaldo Carvalho de Melo top->zero = !top->zero; 542923c42c1SMike Galbraith break; 54383a0944fSIngo Molnar default: 54483a0944fSIngo Molnar break; 545923c42c1SMike Galbraith } 54611859e82SArnaldo Carvalho de Melo 54711859e82SArnaldo Carvalho de Melo return ret; 548923c42c1SMike Galbraith } 549923c42c1SMike Galbraith 550ab81f3fdSArnaldo Carvalho de Melo static void perf_top__sort_new_samples(void *arg) 551ab81f3fdSArnaldo Carvalho de Melo { 552ab81f3fdSArnaldo Carvalho de Melo struct perf_top *t = arg; 553ab81f3fdSArnaldo Carvalho de Melo perf_top__reset_sample_counters(t); 554ab81f3fdSArnaldo Carvalho de Melo 555ab81f3fdSArnaldo Carvalho de Melo if (t->evlist->selected != NULL) 556ab81f3fdSArnaldo Carvalho de Melo t->sym_evsel = t->evlist->selected; 557ab81f3fdSArnaldo Carvalho de Melo 558c1fb5651SNamhyung Kim hists__collapse_resort(&t->sym_evsel->hists, NULL); 5593a5714f8SNamhyung Kim hists__output_resort(&t->sym_evsel->hists); 5603a5714f8SNamhyung Kim hists__decay_entries(&t->sym_evsel->hists, 5611758af10SArnaldo Carvalho de Melo t->hide_user_symbols, 5621758af10SArnaldo Carvalho de Melo t->hide_kernel_symbols); 563ab81f3fdSArnaldo Carvalho de Melo } 564ab81f3fdSArnaldo Carvalho de Melo 5651758af10SArnaldo Carvalho de Melo static void *display_thread_tui(void *arg) 566c0443df1SArnaldo Carvalho de Melo { 5670d37aa34SArnaldo Carvalho de Melo struct perf_evsel *pos; 5681758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 569ab81f3fdSArnaldo Carvalho de Melo const char *help = "For a higher level overview, try: perf top --sort comm,dso"; 5709783adf7SNamhyung Kim struct hist_browser_timer hbt = { 5719783adf7SNamhyung Kim .timer = perf_top__sort_new_samples, 5729783adf7SNamhyung Kim .arg = top, 5739783adf7SNamhyung Kim .refresh = top->delay_secs, 5749783adf7SNamhyung Kim }; 575ab81f3fdSArnaldo Carvalho de Melo 5761758af10SArnaldo Carvalho de Melo perf_top__sort_new_samples(top); 5770d37aa34SArnaldo Carvalho de Melo 5780d37aa34SArnaldo Carvalho de Melo /* 5790d37aa34SArnaldo Carvalho de Melo * Initialize the uid_filter_str, in the future the TUI will allow 5800d37aa34SArnaldo Carvalho de Melo * Zooming in/out UIDs. For now juse use whatever the user passed 5810d37aa34SArnaldo Carvalho de Melo * via --uid. 5820d37aa34SArnaldo Carvalho de Melo */ 5830050f7aaSArnaldo Carvalho de Melo evlist__for_each(top->evlist, pos) 5842376c67aSArnaldo Carvalho de Melo pos->hists.uid_filter_str = top->record_opts.target.uid_str; 5850d37aa34SArnaldo Carvalho de Melo 586fa5df943SNamhyung Kim perf_evlist__tui_browse_hists(top->evlist, help, &hbt, top->min_percent, 58768d80758SNamhyung Kim &top->session->header.env); 588ab81f3fdSArnaldo Carvalho de Melo 58911859e82SArnaldo Carvalho de Melo done = 1; 590c0443df1SArnaldo Carvalho de Melo return NULL; 591c0443df1SArnaldo Carvalho de Melo } 592c0443df1SArnaldo Carvalho de Melo 5931758af10SArnaldo Carvalho de Melo static void *display_thread(void *arg) 59486470930SIngo Molnar { 59586470930SIngo Molnar struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 596923c42c1SMike Galbraith struct termios tc, save; 5971758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 598923c42c1SMike Galbraith int delay_msecs, c; 59986470930SIngo Molnar 600923c42c1SMike Galbraith tcgetattr(0, &save); 601923c42c1SMike Galbraith tc = save; 602923c42c1SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 603923c42c1SMike Galbraith tc.c_cc[VMIN] = 0; 604923c42c1SMike Galbraith tc.c_cc[VTIME] = 0; 605091bd2e9SMike Galbraith 6063af6e338SArnaldo Carvalho de Melo pthread__unblock_sigwinch(); 607923c42c1SMike Galbraith repeat: 6081758af10SArnaldo Carvalho de Melo delay_msecs = top->delay_secs * 1000; 609923c42c1SMike Galbraith tcsetattr(0, TCSANOW, &tc); 610923c42c1SMike Galbraith /* trash return*/ 611923c42c1SMike Galbraith getc(stdin); 61286470930SIngo Molnar 61311859e82SArnaldo Carvalho de Melo while (!done) { 6141758af10SArnaldo Carvalho de Melo perf_top__print_sym_table(top); 6153af6e338SArnaldo Carvalho de Melo /* 6163af6e338SArnaldo Carvalho de Melo * Either timeout expired or we got an EINTR due to SIGWINCH, 6173af6e338SArnaldo Carvalho de Melo * refresh screen in both cases. 6183af6e338SArnaldo Carvalho de Melo */ 6193af6e338SArnaldo Carvalho de Melo switch (poll(&stdin_poll, 1, delay_msecs)) { 6203af6e338SArnaldo Carvalho de Melo case 0: 6213af6e338SArnaldo Carvalho de Melo continue; 6223af6e338SArnaldo Carvalho de Melo case -1: 6233af6e338SArnaldo Carvalho de Melo if (errno == EINTR) 6243af6e338SArnaldo Carvalho de Melo continue; 6253af6e338SArnaldo Carvalho de Melo /* Fall trhu */ 6263af6e338SArnaldo Carvalho de Melo default: 627923c42c1SMike Galbraith c = getc(stdin); 628923c42c1SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 629923c42c1SMike Galbraith 63011859e82SArnaldo Carvalho de Melo if (perf_top__handle_keypress(top, c)) 631923c42c1SMike Galbraith goto repeat; 63211859e82SArnaldo Carvalho de Melo done = 1; 63311859e82SArnaldo Carvalho de Melo } 63411859e82SArnaldo Carvalho de Melo } 63586470930SIngo Molnar 63686470930SIngo Molnar return NULL; 63786470930SIngo Molnar } 63886470930SIngo Molnar 6391d037ca1SIrina Tirdea static int symbol_filter(struct map *map __maybe_unused, struct symbol *sym) 64086470930SIngo Molnar { 64186470930SIngo Molnar const char *name = sym->name; 64286470930SIngo Molnar 6433a3393efSAnton Blanchard /* 6443a3393efSAnton Blanchard * ppc64 uses function descriptors and appends a '.' to the 6453a3393efSAnton Blanchard * start of every instruction address. Remove it. 6463a3393efSAnton Blanchard */ 6473a3393efSAnton Blanchard if (name[0] == '.') 6483a3393efSAnton Blanchard name++; 6493a3393efSAnton Blanchard 65086470930SIngo Molnar if (!strcmp(name, "_text") || 65186470930SIngo Molnar !strcmp(name, "_etext") || 65286470930SIngo Molnar !strcmp(name, "_sinittext") || 65386470930SIngo Molnar !strncmp("init_module", name, 11) || 65486470930SIngo Molnar !strncmp("cleanup_module", name, 14) || 65586470930SIngo Molnar strstr(name, "_text_start") || 65686470930SIngo Molnar strstr(name, "_text_end")) 65786470930SIngo Molnar return 1; 65886470930SIngo Molnar 65982d1deb0SDavid Ahern if (symbol__is_idle(sym)) 660171b3be9SArnaldo Carvalho de Melo sym->ignore = true; 66186470930SIngo Molnar 66286470930SIngo Molnar return 0; 66386470930SIngo Molnar } 66486470930SIngo Molnar 6651758af10SArnaldo Carvalho de Melo static void perf_event__process_sample(struct perf_tool *tool, 6661758af10SArnaldo Carvalho de Melo const union perf_event *event, 6677b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel, 6688d50e5b4SArnaldo Carvalho de Melo struct perf_sample *sample, 669743eb868SArnaldo Carvalho de Melo struct machine *machine) 67086470930SIngo Molnar { 6711758af10SArnaldo Carvalho de Melo struct perf_top *top = container_of(tool, struct perf_top, tool); 67219d4ac3cSArnaldo Carvalho de Melo struct symbol *parent = NULL; 673ef89325fSAdrian Hunter u64 ip = sample->ip; 6741ed091c4SArnaldo Carvalho de Melo struct addr_location al; 67519d4ac3cSArnaldo Carvalho de Melo int err; 6765b2bb75aSArnaldo Carvalho de Melo 67723346f21SArnaldo Carvalho de Melo if (!machine && perf_guest) { 6786b118e92SDavid Ahern static struct intlist *seen; 6796b118e92SDavid Ahern 6806b118e92SDavid Ahern if (!seen) 681ffe0fb76SArnaldo Carvalho de Melo seen = intlist__new(NULL); 6826b118e92SDavid Ahern 683ef89325fSAdrian Hunter if (!intlist__has_entry(seen, sample->pid)) { 684a1645ce1SZhang, Yanmin pr_err("Can't find guest [%d]'s kernel information\n", 685ef89325fSAdrian Hunter sample->pid); 686ef89325fSAdrian Hunter intlist__add(seen, sample->pid); 6876b118e92SDavid Ahern } 688a1645ce1SZhang, Yanmin return; 689a1645ce1SZhang, Yanmin } 690a1645ce1SZhang, Yanmin 6910c095715SJoerg Roedel if (!machine) { 69211859e82SArnaldo Carvalho de Melo pr_err("%u unprocessable samples recorded.\r", 69328a6b6aaSArnaldo Carvalho de Melo top->session->stats.nr_unprocessable_samples++); 6940c095715SJoerg Roedel return; 6950c095715SJoerg Roedel } 6960c095715SJoerg Roedel 6978115d60cSArnaldo Carvalho de Melo if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) 6981758af10SArnaldo Carvalho de Melo top->exact_samples++; 6991676b8a0SPeter Zijlstra 70033db4568SNamhyung Kim if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) 7011ed091c4SArnaldo Carvalho de Melo return; 70286470930SIngo Molnar 7031758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && 7045f6f5580SArnaldo Carvalho de Melo symbol_conf.kptr_restrict && 7055f6f5580SArnaldo Carvalho de Melo al.cpumode == PERF_RECORD_MISC_KERNEL) { 7065f6f5580SArnaldo Carvalho de Melo ui__warning( 7075f6f5580SArnaldo Carvalho de Melo "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" 7085f6f5580SArnaldo Carvalho de Melo "Check /proc/sys/kernel/kptr_restrict.\n\n" 7095f6f5580SArnaldo Carvalho de Melo "Kernel%s samples will not be resolved.\n", 7105f6f5580SArnaldo Carvalho de Melo !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? 7115f6f5580SArnaldo Carvalho de Melo " modules" : ""); 7125f6f5580SArnaldo Carvalho de Melo if (use_browser <= 0) 7135f6f5580SArnaldo Carvalho de Melo sleep(5); 7141758af10SArnaldo Carvalho de Melo top->kptr_restrict_warned = true; 7155f6f5580SArnaldo Carvalho de Melo } 7165f6f5580SArnaldo Carvalho de Melo 71772b8fa17SArnaldo Carvalho de Melo if (al.sym == NULL) { 718e4a338d0SArnaldo Carvalho de Melo const char *msg = "Kernel samples will not be resolved.\n"; 71972b8fa17SArnaldo Carvalho de Melo /* 72072b8fa17SArnaldo Carvalho de Melo * As we do lazy loading of symtabs we only will know if the 72172b8fa17SArnaldo Carvalho de Melo * specified vmlinux file is invalid when we actually have a 72272b8fa17SArnaldo Carvalho de Melo * hit in kernel space and then try to load it. So if we get 72372b8fa17SArnaldo Carvalho de Melo * here and there are _no_ symbols in the DSO backing the 72472b8fa17SArnaldo Carvalho de Melo * kernel map, bail out. 72572b8fa17SArnaldo Carvalho de Melo * 72672b8fa17SArnaldo Carvalho de Melo * We may never get here, for instance, if we use -K/ 72772b8fa17SArnaldo Carvalho de Melo * --hide-kernel-symbols, even if the user specifies an 72872b8fa17SArnaldo Carvalho de Melo * invalid --vmlinux ;-) 72972b8fa17SArnaldo Carvalho de Melo */ 7301758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && !top->vmlinux_warned && 731e4a338d0SArnaldo Carvalho de Melo al.map == machine->vmlinux_maps[MAP__FUNCTION] && 73272b8fa17SArnaldo Carvalho de Melo RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { 733e4a338d0SArnaldo Carvalho de Melo if (symbol_conf.vmlinux_name) { 734e4a338d0SArnaldo Carvalho de Melo ui__warning("The %s file can't be used.\n%s", 735e4a338d0SArnaldo Carvalho de Melo symbol_conf.vmlinux_name, msg); 736e4a338d0SArnaldo Carvalho de Melo } else { 737e4a338d0SArnaldo Carvalho de Melo ui__warning("A vmlinux file was not found.\n%s", 738e4a338d0SArnaldo Carvalho de Melo msg); 739e4a338d0SArnaldo Carvalho de Melo } 740e4a338d0SArnaldo Carvalho de Melo 741e4a338d0SArnaldo Carvalho de Melo if (use_browser <= 0) 742e4a338d0SArnaldo Carvalho de Melo sleep(5); 7431758af10SArnaldo Carvalho de Melo top->vmlinux_warned = true; 74472b8fa17SArnaldo Carvalho de Melo } 74572b8fa17SArnaldo Carvalho de Melo } 74672b8fa17SArnaldo Carvalho de Melo 747ab81f3fdSArnaldo Carvalho de Melo if (al.sym == NULL || !al.sym->ignore) { 748ab81f3fdSArnaldo Carvalho de Melo struct hist_entry *he; 74970db7533SArnaldo Carvalho de Melo 7502dc9fb1aSNamhyung Kim err = sample__resolve_callchain(sample, &parent, evsel, &al, 7515dbb6e81SWaiman Long top->max_stack); 75219d4ac3cSArnaldo Carvalho de Melo if (err) 75319d4ac3cSArnaldo Carvalho de Melo return; 75419d4ac3cSArnaldo Carvalho de Melo 755743eb868SArnaldo Carvalho de Melo he = perf_evsel__add_hist_entry(evsel, &al, sample); 756ab81f3fdSArnaldo Carvalho de Melo if (he == NULL) { 757ab81f3fdSArnaldo Carvalho de Melo pr_err("Problem incrementing symbol period, skipping event\n"); 758ab81f3fdSArnaldo Carvalho de Melo return; 7595807806aSArnaldo Carvalho de Melo } 760ab81f3fdSArnaldo Carvalho de Melo 7612dc9fb1aSNamhyung Kim err = hist_entry__append_callchain(he, sample); 76219d4ac3cSArnaldo Carvalho de Melo if (err) 76319d4ac3cSArnaldo Carvalho de Melo return; 76419d4ac3cSArnaldo Carvalho de Melo 7658f0f684bSNamhyung Kim if (sort__has_sym) 7661758af10SArnaldo Carvalho de Melo perf_top__record_precise_ip(top, he, evsel->idx, ip); 7675807806aSArnaldo Carvalho de Melo } 768ab81f3fdSArnaldo Carvalho de Melo 769ab81f3fdSArnaldo Carvalho de Melo return; 77086470930SIngo Molnar } 77186470930SIngo Molnar 7721758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read_idx(struct perf_top *top, int idx) 77386470930SIngo Molnar { 7748d50e5b4SArnaldo Carvalho de Melo struct perf_sample sample; 7757b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel; 7761758af10SArnaldo Carvalho de Melo struct perf_session *session = top->session; 7778115d60cSArnaldo Carvalho de Melo union perf_event *event; 778743eb868SArnaldo Carvalho de Melo struct machine *machine; 779743eb868SArnaldo Carvalho de Melo u8 origin; 7805538becaSFrederic Weisbecker int ret; 78186470930SIngo Molnar 7821758af10SArnaldo Carvalho de Melo while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { 7830807d2d8SArnaldo Carvalho de Melo ret = perf_evlist__parse_sample(top->evlist, event, &sample); 7845538becaSFrederic Weisbecker if (ret) { 7855538becaSFrederic Weisbecker pr_err("Can't parse sample, err = %d\n", ret); 7868e50d384SZhouyi Zhou goto next_event; 7875538becaSFrederic Weisbecker } 78804391debSArnaldo Carvalho de Melo 7891758af10SArnaldo Carvalho de Melo evsel = perf_evlist__id2evsel(session->evlist, sample.id); 7907b27509fSArnaldo Carvalho de Melo assert(evsel != NULL); 7917b27509fSArnaldo Carvalho de Melo 792743eb868SArnaldo Carvalho de Melo origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 793743eb868SArnaldo Carvalho de Melo 7945b2bb75aSArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) 7951758af10SArnaldo Carvalho de Melo ++top->samples; 796743eb868SArnaldo Carvalho de Melo 797743eb868SArnaldo Carvalho de Melo switch (origin) { 798743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_USER: 7991758af10SArnaldo Carvalho de Melo ++top->us_samples; 8001758af10SArnaldo Carvalho de Melo if (top->hide_user_symbols) 8018e50d384SZhouyi Zhou goto next_event; 80234ba5122SArnaldo Carvalho de Melo machine = &session->machines.host; 803743eb868SArnaldo Carvalho de Melo break; 804743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_KERNEL: 8051758af10SArnaldo Carvalho de Melo ++top->kernel_samples; 8061758af10SArnaldo Carvalho de Melo if (top->hide_kernel_symbols) 8078e50d384SZhouyi Zhou goto next_event; 80834ba5122SArnaldo Carvalho de Melo machine = &session->machines.host; 809743eb868SArnaldo Carvalho de Melo break; 810743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_KERNEL: 8111758af10SArnaldo Carvalho de Melo ++top->guest_kernel_samples; 812ef89325fSAdrian Hunter machine = perf_session__find_machine(session, 813ef89325fSAdrian Hunter sample.pid); 814743eb868SArnaldo Carvalho de Melo break; 815743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_USER: 8161758af10SArnaldo Carvalho de Melo ++top->guest_us_samples; 817743eb868SArnaldo Carvalho de Melo /* 818743eb868SArnaldo Carvalho de Melo * TODO: we don't process guest user from host side 819743eb868SArnaldo Carvalho de Melo * except simple counting. 820743eb868SArnaldo Carvalho de Melo */ 821743eb868SArnaldo Carvalho de Melo /* Fall thru */ 822743eb868SArnaldo Carvalho de Melo default: 8238e50d384SZhouyi Zhou goto next_event; 824743eb868SArnaldo Carvalho de Melo } 825743eb868SArnaldo Carvalho de Melo 826743eb868SArnaldo Carvalho de Melo 8271758af10SArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) { 8281758af10SArnaldo Carvalho de Melo perf_event__process_sample(&top->tool, event, evsel, 8291758af10SArnaldo Carvalho de Melo &sample, machine); 8301758af10SArnaldo Carvalho de Melo } else if (event->header.type < PERF_RECORD_MAX) { 8317b27509fSArnaldo Carvalho de Melo hists__inc_nr_events(&evsel->hists, event->header.type); 832162f0befSFrederic Weisbecker machine__process_event(machine, event, &sample); 8337b27509fSArnaldo Carvalho de Melo } else 83428a6b6aaSArnaldo Carvalho de Melo ++session->stats.nr_unknown_events; 8358e50d384SZhouyi Zhou next_event: 8368e50d384SZhouyi Zhou perf_evlist__mmap_consume(top->evlist, idx); 83786470930SIngo Molnar } 83886470930SIngo Molnar } 83986470930SIngo Molnar 8401758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read(struct perf_top *top) 8412f01190aSFrederic Weisbecker { 84270db7533SArnaldo Carvalho de Melo int i; 8432f01190aSFrederic Weisbecker 8441758af10SArnaldo Carvalho de Melo for (i = 0; i < top->evlist->nr_mmaps; i++) 8451758af10SArnaldo Carvalho de Melo perf_top__mmap_read_idx(top, i); 8462f01190aSFrederic Weisbecker } 8472f01190aSFrederic Weisbecker 84811859e82SArnaldo Carvalho de Melo static int perf_top__start_counters(struct perf_top *top) 84972cb7013SArnaldo Carvalho de Melo { 85056e52e85SArnaldo Carvalho de Melo char msg[512]; 8516a4bb04cSJiri Olsa struct perf_evsel *counter; 8521758af10SArnaldo Carvalho de Melo struct perf_evlist *evlist = top->evlist; 853b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 854727ab04eSArnaldo Carvalho de Melo 8552376c67aSArnaldo Carvalho de Melo perf_evlist__config(evlist, opts); 85672cb7013SArnaldo Carvalho de Melo 8570050f7aaSArnaldo Carvalho de Melo evlist__for_each(evlist, counter) { 85872cb7013SArnaldo Carvalho de Melo try_again: 8591758af10SArnaldo Carvalho de Melo if (perf_evsel__open(counter, top->evlist->cpus, 8606a4bb04cSJiri Olsa top->evlist->threads) < 0) { 86156e52e85SArnaldo Carvalho de Melo if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { 86272cb7013SArnaldo Carvalho de Melo if (verbose) 863c0a54341SArnaldo Carvalho de Melo ui__warning("%s\n", msg); 86472cb7013SArnaldo Carvalho de Melo goto try_again; 86572cb7013SArnaldo Carvalho de Melo } 866c286c419SArnaldo Carvalho de Melo 86756e52e85SArnaldo Carvalho de Melo perf_evsel__open_strerror(counter, &opts->target, 86856e52e85SArnaldo Carvalho de Melo errno, msg, sizeof(msg)); 86956e52e85SArnaldo Carvalho de Melo ui__error("%s\n", msg); 870c286c419SArnaldo Carvalho de Melo goto out_err; 87172cb7013SArnaldo Carvalho de Melo } 87272cb7013SArnaldo Carvalho de Melo } 87370db7533SArnaldo Carvalho de Melo 8742376c67aSArnaldo Carvalho de Melo if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { 8753780f488SNamhyung Kim ui__error("Failed to mmap with %d (%s)\n", 876c286c419SArnaldo Carvalho de Melo errno, strerror(errno)); 877c286c419SArnaldo Carvalho de Melo goto out_err; 878c286c419SArnaldo Carvalho de Melo } 879c286c419SArnaldo Carvalho de Melo 88011859e82SArnaldo Carvalho de Melo return 0; 881c286c419SArnaldo Carvalho de Melo 882c286c419SArnaldo Carvalho de Melo out_err: 88311859e82SArnaldo Carvalho de Melo return -1; 88472cb7013SArnaldo Carvalho de Melo } 88572cb7013SArnaldo Carvalho de Melo 8868f0f684bSNamhyung Kim static int perf_top__setup_sample_type(struct perf_top *top __maybe_unused) 88719d4ac3cSArnaldo Carvalho de Melo { 8888f0f684bSNamhyung Kim if (!sort__has_sym) { 88919d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) { 8903780f488SNamhyung Kim ui__error("Selected -g but \"sym\" not present in --sort/-s."); 89119d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 89219d4ac3cSArnaldo Carvalho de Melo } 8932376c67aSArnaldo Carvalho de Melo } else if (callchain_param.mode != CHAIN_NONE) { 89419d4ac3cSArnaldo Carvalho de Melo if (callchain_register_param(&callchain_param) < 0) { 8953780f488SNamhyung Kim ui__error("Can't register callchain params.\n"); 89619d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 89719d4ac3cSArnaldo Carvalho de Melo } 89819d4ac3cSArnaldo Carvalho de Melo } 89919d4ac3cSArnaldo Carvalho de Melo 90019d4ac3cSArnaldo Carvalho de Melo return 0; 90119d4ac3cSArnaldo Carvalho de Melo } 90219d4ac3cSArnaldo Carvalho de Melo 9031758af10SArnaldo Carvalho de Melo static int __cmd_top(struct perf_top *top) 904716c69feSIngo Molnar { 905b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 906716c69feSIngo Molnar pthread_t thread; 90719d4ac3cSArnaldo Carvalho de Melo int ret; 908f5fc1412SJiri Olsa 9096a4d98d7SJiri Olsa top->session = perf_session__new(NULL, false, NULL); 9101758af10SArnaldo Carvalho de Melo if (top->session == NULL) 911b3165f41SArnaldo Carvalho de Melo return -ENOMEM; 912716c69feSIngo Molnar 91336035f78SAdrian Hunter machines__set_symbol_filter(&top->session->machines, symbol_filter); 91436035f78SAdrian Hunter 9150d3942dbSSukadev Bhattiprolu if (!objdump_path) { 9160d3942dbSSukadev Bhattiprolu ret = perf_session_env__lookup_objdump(&top->session->header.env); 9170d3942dbSSukadev Bhattiprolu if (ret) 9180d3942dbSSukadev Bhattiprolu goto out_delete; 9190d3942dbSSukadev Bhattiprolu } 9200d3942dbSSukadev Bhattiprolu 9211758af10SArnaldo Carvalho de Melo ret = perf_top__setup_sample_type(top); 92219d4ac3cSArnaldo Carvalho de Melo if (ret) 92319d4ac3cSArnaldo Carvalho de Melo goto out_delete; 92419d4ac3cSArnaldo Carvalho de Melo 925a33fbd56SArnaldo Carvalho de Melo machine__synthesize_threads(&top->session->machines.host, &opts->target, 926a33fbd56SArnaldo Carvalho de Melo top->evlist->threads, false); 92711859e82SArnaldo Carvalho de Melo ret = perf_top__start_counters(top); 92811859e82SArnaldo Carvalho de Melo if (ret) 92911859e82SArnaldo Carvalho de Melo goto out_delete; 93011859e82SArnaldo Carvalho de Melo 9311758af10SArnaldo Carvalho de Melo top->session->evlist = top->evlist; 9327b56cce2SArnaldo Carvalho de Melo perf_session__set_id_hdr_size(top->session); 93386470930SIngo Molnar 9342376c67aSArnaldo Carvalho de Melo /* 9352376c67aSArnaldo Carvalho de Melo * When perf is starting the traced process, all the events (apart from 9362376c67aSArnaldo Carvalho de Melo * group members) have enable_on_exec=1 set, so don't spoil it by 9372376c67aSArnaldo Carvalho de Melo * prematurely enabling them. 9382376c67aSArnaldo Carvalho de Melo * 9392376c67aSArnaldo Carvalho de Melo * XXX 'top' still doesn't start workloads like record, trace, but should, 9402376c67aSArnaldo Carvalho de Melo * so leave the check here. 9412376c67aSArnaldo Carvalho de Melo */ 942602ad878SArnaldo Carvalho de Melo if (!target__none(&opts->target)) 9432376c67aSArnaldo Carvalho de Melo perf_evlist__enable(top->evlist); 9442376c67aSArnaldo Carvalho de Melo 9452f01190aSFrederic Weisbecker /* Wait for a minimal set of events before starting the snapshot */ 9461758af10SArnaldo Carvalho de Melo poll(top->evlist->pollfd, top->evlist->nr_fds, 100); 9472f01190aSFrederic Weisbecker 9481758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 9492f01190aSFrederic Weisbecker 95011859e82SArnaldo Carvalho de Melo ret = -1; 951c0443df1SArnaldo Carvalho de Melo if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : 9521758af10SArnaldo Carvalho de Melo display_thread), top)) { 9533780f488SNamhyung Kim ui__error("Could not create display thread.\n"); 95411859e82SArnaldo Carvalho de Melo goto out_delete; 95586470930SIngo Molnar } 95686470930SIngo Molnar 9571758af10SArnaldo Carvalho de Melo if (top->realtime_prio) { 95886470930SIngo Molnar struct sched_param param; 95986470930SIngo Molnar 9601758af10SArnaldo Carvalho de Melo param.sched_priority = top->realtime_prio; 96186470930SIngo Molnar if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { 9623780f488SNamhyung Kim ui__error("Could not set realtime priority.\n"); 96311859e82SArnaldo Carvalho de Melo goto out_delete; 96486470930SIngo Molnar } 96586470930SIngo Molnar } 96686470930SIngo Molnar 96711859e82SArnaldo Carvalho de Melo while (!done) { 9681758af10SArnaldo Carvalho de Melo u64 hits = top->samples; 96986470930SIngo Molnar 9701758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 97186470930SIngo Molnar 9721758af10SArnaldo Carvalho de Melo if (hits == top->samples) 9731758af10SArnaldo Carvalho de Melo ret = poll(top->evlist->pollfd, top->evlist->nr_fds, 100); 97486470930SIngo Molnar } 97586470930SIngo Molnar 97611859e82SArnaldo Carvalho de Melo ret = 0; 97719d4ac3cSArnaldo Carvalho de Melo out_delete: 9781758af10SArnaldo Carvalho de Melo perf_session__delete(top->session); 9791758af10SArnaldo Carvalho de Melo top->session = NULL; 98019d4ac3cSArnaldo Carvalho de Melo 98111859e82SArnaldo Carvalho de Melo return ret; 98219d4ac3cSArnaldo Carvalho de Melo } 98319d4ac3cSArnaldo Carvalho de Melo 98419d4ac3cSArnaldo Carvalho de Melo static int 985ae779a63SJiri Olsa callchain_opt(const struct option *opt, const char *arg, int unset) 986ae779a63SJiri Olsa { 987ae779a63SJiri Olsa symbol_conf.use_callchain = true; 988ae779a63SJiri Olsa return record_callchain_opt(opt, arg, unset); 989ae779a63SJiri Olsa } 990ae779a63SJiri Olsa 991ae779a63SJiri Olsa static int 9921758af10SArnaldo Carvalho de Melo parse_callchain_opt(const struct option *opt, const char *arg, int unset) 99319d4ac3cSArnaldo Carvalho de Melo { 99419d4ac3cSArnaldo Carvalho de Melo symbol_conf.use_callchain = true; 9952376c67aSArnaldo Carvalho de Melo return record_parse_callchain_opt(opt, arg, unset); 99686470930SIngo Molnar } 99786470930SIngo Molnar 998eb853e80SJiri Olsa static int perf_top_config(const char *var, const char *value, void *cb) 999eb853e80SJiri Olsa { 1000eb853e80SJiri Olsa struct perf_top *top = cb; 1001eb853e80SJiri Olsa 1002eb853e80SJiri Olsa if (!strcmp(var, "top.call-graph")) 1003eb853e80SJiri Olsa return record_parse_callchain(value, &top->record_opts); 1004eb853e80SJiri Olsa 1005eb853e80SJiri Olsa return perf_default_config(var, value, cb); 1006eb853e80SJiri Olsa } 1007eb853e80SJiri Olsa 1008fa5df943SNamhyung Kim static int 1009fa5df943SNamhyung Kim parse_percent_limit(const struct option *opt, const char *arg, 1010fa5df943SNamhyung Kim int unset __maybe_unused) 1011fa5df943SNamhyung Kim { 1012fa5df943SNamhyung Kim struct perf_top *top = opt->value; 1013fa5df943SNamhyung Kim 1014fa5df943SNamhyung Kim top->min_percent = strtof(arg, NULL); 1015fa5df943SNamhyung Kim return 0; 1016fa5df943SNamhyung Kim } 1017fa5df943SNamhyung Kim 10181d037ca1SIrina Tirdea int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) 10191758af10SArnaldo Carvalho de Melo { 1020d37a92dcSNamhyung Kim int status = -1; 102116ad2ffbSNamhyung Kim char errbuf[BUFSIZ]; 10221758af10SArnaldo Carvalho de Melo struct perf_top top = { 10231758af10SArnaldo Carvalho de Melo .count_filter = 5, 10241758af10SArnaldo Carvalho de Melo .delay_secs = 2, 10252376c67aSArnaldo Carvalho de Melo .record_opts = { 10262376c67aSArnaldo Carvalho de Melo .mmap_pages = UINT_MAX, 10272376c67aSArnaldo Carvalho de Melo .user_freq = UINT_MAX, 10282376c67aSArnaldo Carvalho de Melo .user_interval = ULLONG_MAX, 1029447a6013SArnaldo Carvalho de Melo .freq = 4000, /* 4 KHz */ 1030d1cb9fceSNamhyung Kim .target = { 1031d1cb9fceSNamhyung Kim .uses_mmap = true, 1032d1cb9fceSNamhyung Kim }, 10332376c67aSArnaldo Carvalho de Melo }, 10345dbb6e81SWaiman Long .max_stack = PERF_MAX_STACK_DEPTH, 10352376c67aSArnaldo Carvalho de Melo .sym_pcnt_filter = 5, 10361758af10SArnaldo Carvalho de Melo }; 1037b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top.record_opts; 1038602ad878SArnaldo Carvalho de Melo struct target *target = &opts->target; 10391758af10SArnaldo Carvalho de Melo const struct option options[] = { 10408c3e10ebSArnaldo Carvalho de Melo OPT_CALLBACK('e', "event", &top.evlist, "event", 104186470930SIngo Molnar "event selector. use 'perf list' to list available events", 1042f120f9d5SJiri Olsa parse_events_option), 10432376c67aSArnaldo Carvalho de Melo OPT_U64('c', "count", &opts->user_interval, "event period to sample"), 10442376c67aSArnaldo Carvalho de Melo OPT_STRING('p', "pid", &target->pid, "pid", 1045d6d901c2SZhang, Yanmin "profile events on existing process id"), 10462376c67aSArnaldo Carvalho de Melo OPT_STRING('t', "tid", &target->tid, "tid", 1047d6d901c2SZhang, Yanmin "profile events on existing thread id"), 10482376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('a', "all-cpus", &target->system_wide, 104986470930SIngo Molnar "system-wide collection from all CPUs"), 10502376c67aSArnaldo Carvalho de Melo OPT_STRING('C', "cpu", &target->cpu_list, "cpu", 1051c45c6ea2SStephane Eranian "list of cpus to monitor"), 1052b32d133aSArnaldo Carvalho de Melo OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1053b32d133aSArnaldo Carvalho de Melo "file", "vmlinux pathname"), 1054fc2be696SWilly Tarreau OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, 1055fc2be696SWilly Tarreau "don't load vmlinux even if found"), 10568c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, 10578ffcda17SArnaldo Carvalho de Melo "hide kernel symbols"), 1058994a1f78SJiri Olsa OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", 1059994a1f78SJiri Olsa "number of mmap data pages", 1060994a1f78SJiri Olsa perf_evlist__parse_mmap_pages), 10611758af10SArnaldo Carvalho de Melo OPT_INTEGER('r', "realtime", &top.realtime_prio, 106286470930SIngo Molnar "collect data with this RT SCHED_FIFO priority"), 10638c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('d', "delay", &top.delay_secs, 106486470930SIngo Molnar "number of seconds to delay between refreshes"), 10651758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, 106686470930SIngo Molnar "dump the symbol table used for profiling"), 10678c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('f', "count-filter", &top.count_filter, 106886470930SIngo Molnar "only display functions with more events than this"), 1069bf80669eSDavid Ahern OPT_BOOLEAN(0, "group", &opts->group, 107086470930SIngo Molnar "put the counters into a counter group"), 10712376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, 10722376c67aSArnaldo Carvalho de Melo "child tasks do not inherit counters"), 10731758af10SArnaldo Carvalho de Melo OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", 10746cff0e8dSKirill Smelkov "symbol to annotate"), 10752376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), 10762376c67aSArnaldo Carvalho de Melo OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), 10778c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('E', "entries", &top.print_entries, 107886470930SIngo Molnar "display this many functions"), 10798c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, 10808ffcda17SArnaldo Carvalho de Melo "hide user symbols"), 10811758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), 10821758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), 1083c0555642SIan Munsie OPT_INCR('v', "verbose", &verbose, 10843da297a6SIngo Molnar "be more verbose (show counter open errors, etc)"), 1085ab81f3fdSArnaldo Carvalho de Melo OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 1086a2ce067eSNamhyung Kim "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." 1087a2ce067eSNamhyung Kim " Please refer the man page for the complete list."), 10886fe8c26dSNamhyung Kim OPT_STRING(0, "fields", &field_order, "key[,keys...]", 10896fe8c26dSNamhyung Kim "output field(s): overhead, period, sample plus all of sort keys"), 1090ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 1091ab81f3fdSArnaldo Carvalho de Melo "Show a column with the number of samples"), 1092bf80669eSDavid Ahern OPT_CALLBACK_NOOPT('g', NULL, &top.record_opts, 1093ae779a63SJiri Olsa NULL, "enables call-graph recording", 1094ae779a63SJiri Olsa &callchain_opt), 1095ae779a63SJiri Olsa OPT_CALLBACK(0, "call-graph", &top.record_opts, 10962376c67aSArnaldo Carvalho de Melo "mode[,dump_size]", record_callchain_help, 1097ae779a63SJiri Olsa &parse_callchain_opt), 10985dbb6e81SWaiman Long OPT_INTEGER(0, "max-stack", &top.max_stack, 10995dbb6e81SWaiman Long "Set the maximum stack depth when parsing the callchain. " 11005dbb6e81SWaiman Long "Default: " __stringify(PERF_MAX_STACK_DEPTH)), 1101b21484f1SGreg Price OPT_CALLBACK(0, "ignore-callees", NULL, "regex", 1102b21484f1SGreg Price "ignore callees of these functions in call graphs", 1103b21484f1SGreg Price report_parse_ignore_callees_opt), 1104ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 1105ab81f3fdSArnaldo Carvalho de Melo "Show a column with the sum of periods"), 1106ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 1107ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these dsos"), 1108ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1109ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these comms"), 1110ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1111ab81f3fdSArnaldo Carvalho de Melo "only consider these symbols"), 111264c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, 111364c6f0c7SArnaldo Carvalho de Melo "Interleave source code with assembly code (default)"), 111464c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, 111564c6f0c7SArnaldo Carvalho de Melo "Display raw encoding of assembly instructions (default)"), 11160d3942dbSSukadev Bhattiprolu OPT_STRING(0, "objdump", &objdump_path, "path", 11170d3942dbSSukadev Bhattiprolu "objdump binary to use for disassembly and annotations"), 111864c6f0c7SArnaldo Carvalho de Melo OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", 111964c6f0c7SArnaldo Carvalho de Melo "Specify disassembler style (e.g. -M intel for intel syntax)"), 11202376c67aSArnaldo Carvalho de Melo OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), 1121fa5df943SNamhyung Kim OPT_CALLBACK(0, "percent-limit", &top, "percent", 1122fa5df943SNamhyung Kim "Don't show entries under that percent", parse_percent_limit), 112333db4568SNamhyung Kim OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", 112433db4568SNamhyung Kim "How to display percentage of filtered entries", parse_filter_percentage), 112586470930SIngo Molnar OPT_END() 112686470930SIngo Molnar }; 1127be772842SArnaldo Carvalho de Melo const char * const top_usage[] = { 1128be772842SArnaldo Carvalho de Melo "perf top [<options>]", 1129be772842SArnaldo Carvalho de Melo NULL 1130be772842SArnaldo Carvalho de Melo }; 113186470930SIngo Molnar 1132334fe7a3SNamhyung Kim top.evlist = perf_evlist__new(); 11338c3e10ebSArnaldo Carvalho de Melo if (top.evlist == NULL) 1134361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1135361c99a6SArnaldo Carvalho de Melo 1136eb853e80SJiri Olsa perf_config(perf_top_config, &top); 1137eb853e80SJiri Olsa 113886470930SIngo Molnar argc = parse_options(argc, argv, options, top_usage, 0); 113986470930SIngo Molnar if (argc) 114086470930SIngo Molnar usage_with_options(top_usage, options); 114186470930SIngo Molnar 1142512ae1bdSNamhyung Kim sort__mode = SORT_MODE__TOP; 11433a5714f8SNamhyung Kim /* display thread wants entries to be collapsed in a different tree */ 11443a5714f8SNamhyung Kim sort__need_collapse = 1; 11453a5714f8SNamhyung Kim 11466fe8c26dSNamhyung Kim if (setup_sorting() < 0) { 11476fe8c26dSNamhyung Kim if (sort_order) 11486fe8c26dSNamhyung Kim parse_options_usage(top_usage, options, "s", 1); 11496fe8c26dSNamhyung Kim if (field_order) 11506fe8c26dSNamhyung Kim parse_options_usage(sort_order ? NULL : top_usage, 11516fe8c26dSNamhyung Kim options, "fields", 0); 11526fe8c26dSNamhyung Kim goto out_delete_evlist; 11536fe8c26dSNamhyung Kim } 115422af969eSNamhyung Kim 11551758af10SArnaldo Carvalho de Melo if (top.use_stdio) 1156c0443df1SArnaldo Carvalho de Melo use_browser = 0; 11571758af10SArnaldo Carvalho de Melo else if (top.use_tui) 1158c0443df1SArnaldo Carvalho de Melo use_browser = 1; 1159c0443df1SArnaldo Carvalho de Melo 1160c0443df1SArnaldo Carvalho de Melo setup_browser(false); 1161c0443df1SArnaldo Carvalho de Melo 1162602ad878SArnaldo Carvalho de Melo status = target__validate(target); 116316ad2ffbSNamhyung Kim if (status) { 1164602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1165ea432a8bSIngo Molnar ui__warning("%s\n", errbuf); 116616ad2ffbSNamhyung Kim } 11674bd0f2d2SNamhyung Kim 1168602ad878SArnaldo Carvalho de Melo status = target__parse_uid(target); 116916ad2ffbSNamhyung Kim if (status) { 117016ad2ffbSNamhyung Kim int saved_errno = errno; 117116ad2ffbSNamhyung Kim 1172602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1173ea432a8bSIngo Molnar ui__error("%s\n", errbuf); 117416ad2ffbSNamhyung Kim 117516ad2ffbSNamhyung Kim status = -saved_errno; 11760d37aa34SArnaldo Carvalho de Melo goto out_delete_evlist; 117716ad2ffbSNamhyung Kim } 11780d37aa34SArnaldo Carvalho de Melo 1179602ad878SArnaldo Carvalho de Melo if (target__none(target)) 11802376c67aSArnaldo Carvalho de Melo target->system_wide = true; 118110b47d54SArnaldo Carvalho de Melo 11822376c67aSArnaldo Carvalho de Melo if (perf_evlist__create_maps(top.evlist, target) < 0) 11837e2ed097SArnaldo Carvalho de Melo usage_with_options(top_usage, options); 11847e2ed097SArnaldo Carvalho de Melo 11858c3e10ebSArnaldo Carvalho de Melo if (!top.evlist->nr_entries && 11868c3e10ebSArnaldo Carvalho de Melo perf_evlist__add_default(top.evlist) < 0) { 11873780f488SNamhyung Kim ui__error("Not enough memory for event selector list\n"); 118803ad9747SArnaldo Carvalho de Melo goto out_delete_evlist; 118969aad6f1SArnaldo Carvalho de Melo } 11905a8e5a30SArnaldo Carvalho de Melo 1191d04b35f8SArnaldo Carvalho de Melo symbol_conf.nr_events = top.evlist->nr_entries; 1192d04b35f8SArnaldo Carvalho de Melo 11938c3e10ebSArnaldo Carvalho de Melo if (top.delay_secs < 1) 11948c3e10ebSArnaldo Carvalho de Melo top.delay_secs = 1; 119586470930SIngo Molnar 1196b4006796SArnaldo Carvalho de Melo if (record_opts__config(opts)) { 11972376c67aSArnaldo Carvalho de Melo status = -EINVAL; 119803ad9747SArnaldo Carvalho de Melo goto out_delete_evlist; 119969aad6f1SArnaldo Carvalho de Melo } 120069aad6f1SArnaldo Carvalho de Melo 12010c21f736SArnaldo Carvalho de Melo top.sym_evsel = perf_evlist__first(top.evlist); 1202cc841580SArnaldo Carvalho de Melo 1203ab81f3fdSArnaldo Carvalho de Melo symbol_conf.priv_size = sizeof(struct annotation); 120469aad6f1SArnaldo Carvalho de Melo 120569aad6f1SArnaldo Carvalho de Melo symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); 120669aad6f1SArnaldo Carvalho de Melo if (symbol__init() < 0) 120769aad6f1SArnaldo Carvalho de Melo return -1; 120869aad6f1SArnaldo Carvalho de Melo 120908e71542SNamhyung Kim sort__setup_elide(stdout); 1210ab81f3fdSArnaldo Carvalho de Melo 12111758af10SArnaldo Carvalho de Melo get_term_dimensions(&top.winsize); 12128c3e10ebSArnaldo Carvalho de Melo if (top.print_entries == 0) { 12131758af10SArnaldo Carvalho de Melo struct sigaction act = { 12141758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 12151758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 12161758af10SArnaldo Carvalho de Melo }; 12171758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(&top); 12181758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 12193b6ed988SArnaldo Carvalho de Melo } 12203b6ed988SArnaldo Carvalho de Melo 12211758af10SArnaldo Carvalho de Melo status = __cmd_top(&top); 1222806fb630SArnaldo Carvalho de Melo 12230d37aa34SArnaldo Carvalho de Melo out_delete_evlist: 12248c3e10ebSArnaldo Carvalho de Melo perf_evlist__delete(top.evlist); 122569aad6f1SArnaldo Carvalho de Melo 122669aad6f1SArnaldo Carvalho de Melo return status; 122786470930SIngo Molnar } 1228