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" 29b3165f41SArnaldo Carvalho de Melo #include "util/session.h" 30b3165f41SArnaldo Carvalho de Melo #include "util/symbol.h" 31439d473bSArnaldo Carvalho de Melo #include "util/thread.h" 32fd78260bSArnaldo Carvalho de Melo #include "util/thread_map.h" 338c3e10ebSArnaldo Carvalho de Melo #include "util/top.h" 3486470930SIngo Molnar #include "util/util.h" 3543cbcd8aSArnaldo Carvalho de Melo #include <linux/rbtree.h> 3686470930SIngo Molnar #include "util/parse-options.h" 3786470930SIngo Molnar #include "util/parse-events.h" 38a12b51c4SPaul Mackerras #include "util/cpumap.h" 3969aad6f1SArnaldo Carvalho de Melo #include "util/xyarray.h" 40ab81f3fdSArnaldo Carvalho de Melo #include "util/sort.h" 4186470930SIngo Molnar 428f28827aSFrederic Weisbecker #include "util/debug.h" 438f28827aSFrederic Weisbecker 4486470930SIngo Molnar #include <assert.h> 4586470930SIngo Molnar #include <fcntl.h> 4686470930SIngo Molnar 4786470930SIngo Molnar #include <stdio.h> 48923c42c1SMike Galbraith #include <termios.h> 49923c42c1SMike Galbraith #include <unistd.h> 509486aa38SArnaldo Carvalho de Melo #include <inttypes.h> 5186470930SIngo Molnar 5286470930SIngo Molnar #include <errno.h> 5386470930SIngo Molnar #include <time.h> 5486470930SIngo Molnar #include <sched.h> 5586470930SIngo Molnar 5686470930SIngo Molnar #include <sys/syscall.h> 5786470930SIngo Molnar #include <sys/ioctl.h> 5886470930SIngo Molnar #include <sys/poll.h> 5986470930SIngo Molnar #include <sys/prctl.h> 6086470930SIngo Molnar #include <sys/wait.h> 6186470930SIngo Molnar #include <sys/uio.h> 6286470930SIngo Molnar #include <sys/mman.h> 6386470930SIngo Molnar 6486470930SIngo Molnar #include <linux/unistd.h> 6586470930SIngo Molnar #include <linux/types.h> 6686470930SIngo Molnar 67895f0edcSArnaldo Carvalho de Melo void get_term_dimensions(struct winsize *ws) 683b6ed988SArnaldo Carvalho de Melo { 6913cc5079SArnaldo Carvalho de Melo char *s = getenv("LINES"); 703b6ed988SArnaldo Carvalho de Melo 7113cc5079SArnaldo Carvalho de Melo if (s != NULL) { 7213cc5079SArnaldo Carvalho de Melo ws->ws_row = atoi(s); 7313cc5079SArnaldo Carvalho de Melo s = getenv("COLUMNS"); 7413cc5079SArnaldo Carvalho de Melo if (s != NULL) { 7513cc5079SArnaldo Carvalho de Melo ws->ws_col = atoi(s); 7613cc5079SArnaldo Carvalho de Melo if (ws->ws_row && ws->ws_col) 7713cc5079SArnaldo Carvalho de Melo return; 7813cc5079SArnaldo Carvalho de Melo } 7913cc5079SArnaldo Carvalho de Melo } 803b6ed988SArnaldo Carvalho de Melo #ifdef TIOCGWINSZ 8113cc5079SArnaldo Carvalho de Melo if (ioctl(1, TIOCGWINSZ, ws) == 0 && 8213cc5079SArnaldo Carvalho de Melo ws->ws_row && ws->ws_col) 8313cc5079SArnaldo Carvalho de Melo return; 843b6ed988SArnaldo Carvalho de Melo #endif 8513cc5079SArnaldo Carvalho de Melo ws->ws_row = 25; 8613cc5079SArnaldo Carvalho de Melo ws->ws_col = 80; 873b6ed988SArnaldo Carvalho de Melo } 883b6ed988SArnaldo Carvalho de Melo 891758af10SArnaldo Carvalho de Melo static void perf_top__update_print_entries(struct perf_top *top) 903b6ed988SArnaldo Carvalho de Melo { 911758af10SArnaldo Carvalho de Melo top->print_entries = top->winsize.ws_row; 9213cc5079SArnaldo Carvalho de Melo 931758af10SArnaldo Carvalho de Melo if (top->print_entries > 9) 941758af10SArnaldo Carvalho de Melo top->print_entries -= 9; 953b6ed988SArnaldo Carvalho de Melo } 963b6ed988SArnaldo Carvalho de Melo 971758af10SArnaldo Carvalho de Melo static void perf_top__sig_winch(int sig __used, siginfo_t *info __used, void *arg) 983b6ed988SArnaldo Carvalho de Melo { 991758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 1001758af10SArnaldo Carvalho de Melo 1011758af10SArnaldo Carvalho de Melo get_term_dimensions(&top->winsize); 1021758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(top); 1033b6ed988SArnaldo Carvalho de Melo } 1043b6ed988SArnaldo Carvalho de Melo 1051758af10SArnaldo Carvalho de Melo static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) 106923c42c1SMike Galbraith { 107923c42c1SMike Galbraith struct symbol *sym; 108ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 109439d473bSArnaldo Carvalho de Melo struct map *map; 11036532461SArnaldo Carvalho de Melo int err = -1; 111923c42c1SMike Galbraith 112ab81f3fdSArnaldo Carvalho de Melo if (!he || !he->ms.sym) 113b0a9ab62SArnaldo Carvalho de Melo return -1; 114b0a9ab62SArnaldo Carvalho de Melo 115ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 116ab81f3fdSArnaldo Carvalho de Melo map = he->ms.map; 117b0a9ab62SArnaldo Carvalho de Melo 118b0a9ab62SArnaldo Carvalho de Melo /* 119b0a9ab62SArnaldo Carvalho de Melo * We can't annotate with just /proc/kallsyms 120b0a9ab62SArnaldo Carvalho de Melo */ 121878b439dSArnaldo Carvalho de Melo if (map->dso->symtab_type == SYMTAB__KALLSYMS) { 122ce6f4fabSArnaldo Carvalho de Melo pr_err("Can't annotate %s: No vmlinux file was found in the " 123ce6f4fabSArnaldo Carvalho de Melo "path\n", sym->name); 124ce6f4fabSArnaldo Carvalho de Melo sleep(1); 125b0a9ab62SArnaldo Carvalho de Melo return -1; 126b269876cSArnaldo Carvalho de Melo } 127b269876cSArnaldo Carvalho de Melo 128ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 129ce6f4fabSArnaldo Carvalho de Melo if (notes->src != NULL) { 130ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 131923c42c1SMike Galbraith goto out_assign; 132923c42c1SMike Galbraith } 133923c42c1SMike Galbraith 134ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 135923c42c1SMike Galbraith 136d04b35f8SArnaldo Carvalho de Melo if (symbol__alloc_hist(sym) < 0) { 137c97cf422SArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 13836532461SArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 13936532461SArnaldo Carvalho de Melo sym->name); 140ce6f4fabSArnaldo Carvalho de Melo sleep(1); 141c97cf422SArnaldo Carvalho de Melo return err; 142923c42c1SMike Galbraith } 14336532461SArnaldo Carvalho de Melo 144ab81f3fdSArnaldo Carvalho de Melo err = symbol__annotate(sym, map, 0); 14536532461SArnaldo Carvalho de Melo if (err == 0) { 146923c42c1SMike Galbraith out_assign: 1471758af10SArnaldo Carvalho de Melo top->sym_filter_entry = he; 14836532461SArnaldo Carvalho de Melo } 149c97cf422SArnaldo Carvalho de Melo 150ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 15136532461SArnaldo Carvalho de Melo return err; 152923c42c1SMike Galbraith } 153923c42c1SMike Galbraith 154ab81f3fdSArnaldo Carvalho de Melo static void __zero_source_counters(struct hist_entry *he) 155923c42c1SMike Galbraith { 156ab81f3fdSArnaldo Carvalho de Melo struct symbol *sym = he->ms.sym; 15736532461SArnaldo Carvalho de Melo symbol__annotate_zero_histograms(sym); 158923c42c1SMike Galbraith } 159923c42c1SMike Galbraith 1601758af10SArnaldo Carvalho de Melo static void perf_top__record_precise_ip(struct perf_top *top, 1611758af10SArnaldo Carvalho de Melo struct hist_entry *he, 1621758af10SArnaldo Carvalho de Melo int counter, u64 ip) 163923c42c1SMike Galbraith { 164ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 165ce6f4fabSArnaldo Carvalho de Melo struct symbol *sym; 166ce6f4fabSArnaldo Carvalho de Melo 167ab81f3fdSArnaldo Carvalho de Melo if (he == NULL || he->ms.sym == NULL || 1681758af10SArnaldo Carvalho de Melo ((top->sym_filter_entry == NULL || 1691758af10SArnaldo Carvalho de Melo top->sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1)) 170923c42c1SMike Galbraith return; 171923c42c1SMike Galbraith 172ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 173ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 174ce6f4fabSArnaldo Carvalho de Melo 175ce6f4fabSArnaldo Carvalho de Melo if (pthread_mutex_trylock(¬es->lock)) 176923c42c1SMike Galbraith return; 177923c42c1SMike Galbraith 178d04b35f8SArnaldo Carvalho de Melo if (notes->src == NULL && symbol__alloc_hist(sym) < 0) { 179ab81f3fdSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 180ab81f3fdSArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 181ab81f3fdSArnaldo Carvalho de Melo sym->name); 182ab81f3fdSArnaldo Carvalho de Melo sleep(1); 183ab81f3fdSArnaldo Carvalho de Melo return; 184ab81f3fdSArnaldo Carvalho de Melo } 185ab81f3fdSArnaldo Carvalho de Melo 186ab81f3fdSArnaldo Carvalho de Melo ip = he->ms.map->map_ip(he->ms.map, ip); 187ab81f3fdSArnaldo Carvalho de Melo symbol__inc_addr_samples(sym, he->ms.map, counter, ip); 188923c42c1SMike Galbraith 189ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 190923c42c1SMike Galbraith } 191923c42c1SMike Galbraith 1921758af10SArnaldo Carvalho de Melo static void perf_top__show_details(struct perf_top *top) 193923c42c1SMike Galbraith { 1941758af10SArnaldo Carvalho de Melo struct hist_entry *he = top->sym_filter_entry; 195ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 196923c42c1SMike Galbraith struct symbol *symbol; 19736532461SArnaldo Carvalho de Melo int more; 198923c42c1SMike Galbraith 199ab81f3fdSArnaldo Carvalho de Melo if (!he) 200923c42c1SMike Galbraith return; 201923c42c1SMike Galbraith 202ab81f3fdSArnaldo Carvalho de Melo symbol = he->ms.sym; 203ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(symbol); 204ce6f4fabSArnaldo Carvalho de Melo 205ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 206ce6f4fabSArnaldo Carvalho de Melo 207ce6f4fabSArnaldo Carvalho de Melo if (notes->src == NULL) 208ce6f4fabSArnaldo Carvalho de Melo goto out_unlock; 209923c42c1SMike Galbraith 2101758af10SArnaldo Carvalho de Melo printf("Showing %s for %s\n", event_name(top->sym_evsel), symbol->name); 2111758af10SArnaldo Carvalho de Melo printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); 212923c42c1SMike Galbraith 2131758af10SArnaldo Carvalho de Melo more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel->idx, 2141758af10SArnaldo Carvalho de Melo 0, top->sym_pcnt_filter, top->print_entries, 4); 2151758af10SArnaldo Carvalho de Melo if (top->zero) 2161758af10SArnaldo Carvalho de Melo symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); 21736532461SArnaldo Carvalho de Melo else 2181758af10SArnaldo Carvalho de Melo symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); 21936532461SArnaldo Carvalho de Melo if (more != 0) 220923c42c1SMike Galbraith printf("%d lines not displayed, maybe increase display entries [e]\n", more); 221ce6f4fabSArnaldo Carvalho de Melo out_unlock: 222ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 223923c42c1SMike Galbraith } 22486470930SIngo Molnar 22586470930SIngo Molnar static const char CONSOLE_CLEAR[] = "[H[2J"; 22686470930SIngo Molnar 227743eb868SArnaldo Carvalho de Melo static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel, 228ab81f3fdSArnaldo Carvalho de Melo struct addr_location *al, 229743eb868SArnaldo Carvalho de Melo struct perf_sample *sample) 23086470930SIngo Molnar { 231ab81f3fdSArnaldo Carvalho de Melo struct hist_entry *he; 232ab81f3fdSArnaldo Carvalho de Melo 233ab81f3fdSArnaldo Carvalho de Melo he = __hists__add_entry(&evsel->hists, al, NULL, sample->period); 234ab81f3fdSArnaldo Carvalho de Melo if (he == NULL) 235ab81f3fdSArnaldo Carvalho de Melo return NULL; 236ab81f3fdSArnaldo Carvalho de Melo 237ab81f3fdSArnaldo Carvalho de Melo hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); 238ab81f3fdSArnaldo Carvalho de Melo return he; 23986470930SIngo Molnar } 24086470930SIngo Molnar 2411758af10SArnaldo Carvalho de Melo static void perf_top__print_sym_table(struct perf_top *top) 24286470930SIngo Molnar { 2438c3e10ebSArnaldo Carvalho de Melo char bf[160]; 2448c3e10ebSArnaldo Carvalho de Melo int printed = 0; 2451758af10SArnaldo Carvalho de Melo const int win_width = top->winsize.ws_col - 1; 24686470930SIngo Molnar 24786470930SIngo Molnar puts(CONSOLE_CLEAR); 24886470930SIngo Molnar 2491758af10SArnaldo Carvalho de Melo perf_top__header_snprintf(top, bf, sizeof(bf)); 2508c3e10ebSArnaldo Carvalho de Melo printf("%s\n", bf); 25186470930SIngo Molnar 2521758af10SArnaldo Carvalho de Melo perf_top__reset_sample_counters(top); 25386470930SIngo Molnar 2541a105f74SArnaldo Carvalho de Melo printf("%-*.*s\n", win_width, win_width, graph_dotted_line); 25586470930SIngo Molnar 2561758af10SArnaldo Carvalho de Melo if (top->sym_evsel->hists.stats.nr_lost_warned != 2571758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) { 2581758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_lost_warned = 2591758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]; 2607b27509fSArnaldo Carvalho de Melo color_fprintf(stdout, PERF_COLOR_RED, 2617b27509fSArnaldo Carvalho de Melo "WARNING: LOST %d chunks, Check IO/CPU overload", 2621758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_lost_warned); 263ab81f3fdSArnaldo Carvalho de Melo ++printed; 26493fc64f1SArnaldo Carvalho de Melo } 26593fc64f1SArnaldo Carvalho de Melo 2661758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 2671758af10SArnaldo Carvalho de Melo perf_top__show_details(top); 268923c42c1SMike Galbraith return; 269923c42c1SMike Galbraith } 270923c42c1SMike Galbraith 2711758af10SArnaldo Carvalho de Melo hists__collapse_resort_threaded(&top->sym_evsel->hists); 2721758af10SArnaldo Carvalho de Melo hists__output_resort_threaded(&top->sym_evsel->hists); 2731758af10SArnaldo Carvalho de Melo hists__decay_entries_threaded(&top->sym_evsel->hists, 2741758af10SArnaldo Carvalho de Melo top->hide_user_symbols, 2751758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols); 2761758af10SArnaldo Carvalho de Melo hists__output_recalc_col_len(&top->sym_evsel->hists, 2771758af10SArnaldo Carvalho de Melo top->winsize.ws_row - 3); 2781a105f74SArnaldo Carvalho de Melo putchar('\n'); 2791758af10SArnaldo Carvalho de Melo hists__fprintf(&top->sym_evsel->hists, NULL, false, false, 2801758af10SArnaldo Carvalho de Melo top->winsize.ws_row - 4 - printed, win_width, stdout); 28186470930SIngo Molnar } 28286470930SIngo Molnar 283923c42c1SMike Galbraith static void prompt_integer(int *target, const char *msg) 284923c42c1SMike Galbraith { 285923c42c1SMike Galbraith char *buf = malloc(0), *p; 286923c42c1SMike Galbraith size_t dummy = 0; 287923c42c1SMike Galbraith int tmp; 288923c42c1SMike Galbraith 289923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 290923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 291923c42c1SMike Galbraith return; 292923c42c1SMike Galbraith 293923c42c1SMike Galbraith p = strchr(buf, '\n'); 294923c42c1SMike Galbraith if (p) 295923c42c1SMike Galbraith *p = 0; 296923c42c1SMike Galbraith 297923c42c1SMike Galbraith p = buf; 298923c42c1SMike Galbraith while(*p) { 299923c42c1SMike Galbraith if (!isdigit(*p)) 300923c42c1SMike Galbraith goto out_free; 301923c42c1SMike Galbraith p++; 302923c42c1SMike Galbraith } 303923c42c1SMike Galbraith tmp = strtoul(buf, NULL, 10); 304923c42c1SMike Galbraith *target = tmp; 305923c42c1SMike Galbraith out_free: 306923c42c1SMike Galbraith free(buf); 307923c42c1SMike Galbraith } 308923c42c1SMike Galbraith 309923c42c1SMike Galbraith static void prompt_percent(int *target, const char *msg) 310923c42c1SMike Galbraith { 311923c42c1SMike Galbraith int tmp = 0; 312923c42c1SMike Galbraith 313923c42c1SMike Galbraith prompt_integer(&tmp, msg); 314923c42c1SMike Galbraith if (tmp >= 0 && tmp <= 100) 315923c42c1SMike Galbraith *target = tmp; 316923c42c1SMike Galbraith } 317923c42c1SMike Galbraith 3181758af10SArnaldo Carvalho de Melo static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) 319923c42c1SMike Galbraith { 320923c42c1SMike Galbraith char *buf = malloc(0), *p; 3211758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; 322ab81f3fdSArnaldo Carvalho de Melo struct rb_node *next; 323923c42c1SMike Galbraith size_t dummy = 0; 324923c42c1SMike Galbraith 325923c42c1SMike Galbraith /* zero counters of active symbol */ 326923c42c1SMike Galbraith if (syme) { 327923c42c1SMike Galbraith __zero_source_counters(syme); 3281758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 329923c42c1SMike Galbraith } 330923c42c1SMike Galbraith 331923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 332923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 333923c42c1SMike Galbraith goto out_free; 334923c42c1SMike Galbraith 335923c42c1SMike Galbraith p = strchr(buf, '\n'); 336923c42c1SMike Galbraith if (p) 337923c42c1SMike Galbraith *p = 0; 338923c42c1SMike Galbraith 3391758af10SArnaldo Carvalho de Melo next = rb_first(&top->sym_evsel->hists.entries); 340ab81f3fdSArnaldo Carvalho de Melo while (next) { 341ab81f3fdSArnaldo Carvalho de Melo n = rb_entry(next, struct hist_entry, rb_node); 342ab81f3fdSArnaldo Carvalho de Melo if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { 343ab81f3fdSArnaldo Carvalho de Melo found = n; 344923c42c1SMike Galbraith break; 345923c42c1SMike Galbraith } 346ab81f3fdSArnaldo Carvalho de Melo next = rb_next(&n->rb_node); 347923c42c1SMike Galbraith } 348923c42c1SMike Galbraith 349923c42c1SMike Galbraith if (!found) { 35066aeb6d5SKirill Smelkov fprintf(stderr, "Sorry, %s is not active.\n", buf); 351923c42c1SMike Galbraith sleep(1); 352923c42c1SMike Galbraith } else 3531758af10SArnaldo Carvalho de Melo perf_top__parse_source(top, found); 354923c42c1SMike Galbraith 355923c42c1SMike Galbraith out_free: 356923c42c1SMike Galbraith free(buf); 357923c42c1SMike Galbraith } 358923c42c1SMike Galbraith 3591758af10SArnaldo Carvalho de Melo static void perf_top__print_mapped_keys(struct perf_top *top) 360923c42c1SMike Galbraith { 361091bd2e9SMike Galbraith char *name = NULL; 362091bd2e9SMike Galbraith 3631758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 3641758af10SArnaldo Carvalho de Melo struct symbol *sym = top->sym_filter_entry->ms.sym; 365091bd2e9SMike Galbraith name = sym->name; 366091bd2e9SMike Galbraith } 367091bd2e9SMike Galbraith 368091bd2e9SMike Galbraith fprintf(stdout, "\nMapped keys:\n"); 3691758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); 3701758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); 371091bd2e9SMike Galbraith 3721758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) 3731758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[E] active event counter. \t(%s)\n", event_name(top->sym_evsel)); 374091bd2e9SMike Galbraith 3751758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); 376091bd2e9SMike Galbraith 3771758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); 378091bd2e9SMike Galbraith fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); 379091bd2e9SMike Galbraith fprintf(stdout, "\t[S] stop annotation.\n"); 380091bd2e9SMike Galbraith 3818ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 3828ffcda17SArnaldo Carvalho de Melo "\t[K] hide kernel_symbols symbols. \t(%s)\n", 3831758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols ? "yes" : "no"); 3848ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 3858ffcda17SArnaldo Carvalho de Melo "\t[U] hide user symbols. \t(%s)\n", 3861758af10SArnaldo Carvalho de Melo top->hide_user_symbols ? "yes" : "no"); 3871758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); 388091bd2e9SMike Galbraith fprintf(stdout, "\t[qQ] quit.\n"); 389091bd2e9SMike Galbraith } 390091bd2e9SMike Galbraith 3911758af10SArnaldo Carvalho de Melo static int perf_top__key_mapped(struct perf_top *top, int c) 392091bd2e9SMike Galbraith { 393091bd2e9SMike Galbraith switch (c) { 394091bd2e9SMike Galbraith case 'd': 395091bd2e9SMike Galbraith case 'e': 396091bd2e9SMike Galbraith case 'f': 397091bd2e9SMike Galbraith case 'z': 398091bd2e9SMike Galbraith case 'q': 399091bd2e9SMike Galbraith case 'Q': 4008ffcda17SArnaldo Carvalho de Melo case 'K': 4018ffcda17SArnaldo Carvalho de Melo case 'U': 4026cff0e8dSKirill Smelkov case 'F': 4036cff0e8dSKirill Smelkov case 's': 4046cff0e8dSKirill Smelkov case 'S': 405091bd2e9SMike Galbraith return 1; 406091bd2e9SMike Galbraith case 'E': 4071758af10SArnaldo Carvalho de Melo return top->evlist->nr_entries > 1 ? 1 : 0; 40883a0944fSIngo Molnar default: 40983a0944fSIngo Molnar break; 410091bd2e9SMike Galbraith } 411091bd2e9SMike Galbraith 412091bd2e9SMike Galbraith return 0; 413923c42c1SMike Galbraith } 414923c42c1SMike Galbraith 4151758af10SArnaldo Carvalho de Melo static void perf_top__handle_keypress(struct perf_top *top, int c) 416923c42c1SMike Galbraith { 4171758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) { 418091bd2e9SMike Galbraith struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 419091bd2e9SMike Galbraith struct termios tc, save; 420091bd2e9SMike Galbraith 4211758af10SArnaldo Carvalho de Melo perf_top__print_mapped_keys(top); 422091bd2e9SMike Galbraith fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); 423091bd2e9SMike Galbraith fflush(stdout); 424091bd2e9SMike Galbraith 425091bd2e9SMike Galbraith tcgetattr(0, &save); 426091bd2e9SMike Galbraith tc = save; 427091bd2e9SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 428091bd2e9SMike Galbraith tc.c_cc[VMIN] = 0; 429091bd2e9SMike Galbraith tc.c_cc[VTIME] = 0; 430091bd2e9SMike Galbraith tcsetattr(0, TCSANOW, &tc); 431091bd2e9SMike Galbraith 432091bd2e9SMike Galbraith poll(&stdin_poll, 1, -1); 433091bd2e9SMike Galbraith c = getc(stdin); 434091bd2e9SMike Galbraith 435091bd2e9SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 4361758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) 437091bd2e9SMike Galbraith return; 438091bd2e9SMike Galbraith } 439091bd2e9SMike Galbraith 440923c42c1SMike Galbraith switch (c) { 441923c42c1SMike Galbraith case 'd': 4421758af10SArnaldo Carvalho de Melo prompt_integer(&top->delay_secs, "Enter display delay"); 4431758af10SArnaldo Carvalho de Melo if (top->delay_secs < 1) 4441758af10SArnaldo Carvalho de Melo top->delay_secs = 1; 445923c42c1SMike Galbraith break; 446923c42c1SMike Galbraith case 'e': 4471758af10SArnaldo Carvalho de Melo prompt_integer(&top->print_entries, "Enter display entries (lines)"); 4481758af10SArnaldo Carvalho de Melo if (top->print_entries == 0) { 4491758af10SArnaldo Carvalho de Melo struct sigaction act = { 4501758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 4511758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 4521758af10SArnaldo Carvalho de Melo }; 4531758af10SArnaldo Carvalho de Melo perf_top__sig_winch(SIGWINCH, NULL, top); 4541758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 4553b6ed988SArnaldo Carvalho de Melo } else 4563b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, SIG_DFL); 457923c42c1SMike Galbraith break; 458923c42c1SMike Galbraith case 'E': 4591758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) { 460ce2d17caSAkihiro Nagai /* Select 0 as the default event: */ 461ce2d17caSAkihiro Nagai int counter = 0; 462ce2d17caSAkihiro Nagai 463923c42c1SMike Galbraith fprintf(stderr, "\nAvailable events:"); 46469aad6f1SArnaldo Carvalho de Melo 4651758af10SArnaldo Carvalho de Melo list_for_each_entry(top->sym_evsel, &top->evlist->entries, node) 4661758af10SArnaldo Carvalho de Melo fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, event_name(top->sym_evsel)); 467923c42c1SMike Galbraith 468ec52d976SArnaldo Carvalho de Melo prompt_integer(&counter, "Enter details event counter"); 469923c42c1SMike Galbraith 4701758af10SArnaldo Carvalho de Melo if (counter >= top->evlist->nr_entries) { 4711758af10SArnaldo Carvalho de Melo top->sym_evsel = list_entry(top->evlist->entries.next, struct perf_evsel, node); 4721758af10SArnaldo Carvalho de Melo fprintf(stderr, "Sorry, no such event, using %s.\n", event_name(top->sym_evsel)); 473923c42c1SMike Galbraith sleep(1); 47469aad6f1SArnaldo Carvalho de Melo break; 475923c42c1SMike Galbraith } 4761758af10SArnaldo Carvalho de Melo list_for_each_entry(top->sym_evsel, &top->evlist->entries, node) 4771758af10SArnaldo Carvalho de Melo if (top->sym_evsel->idx == counter) 47869aad6f1SArnaldo Carvalho de Melo break; 479ec52d976SArnaldo Carvalho de Melo } else 4801758af10SArnaldo Carvalho de Melo top->sym_evsel = list_entry(top->evlist->entries.next, struct perf_evsel, node); 481923c42c1SMike Galbraith break; 482923c42c1SMike Galbraith case 'f': 4831758af10SArnaldo Carvalho de Melo prompt_integer(&top->count_filter, "Enter display event count filter"); 484923c42c1SMike Galbraith break; 485923c42c1SMike Galbraith case 'F': 4861758af10SArnaldo Carvalho de Melo prompt_percent(&top->sym_pcnt_filter, 4871758af10SArnaldo Carvalho de Melo "Enter details display event filter (percent)"); 488923c42c1SMike Galbraith break; 4898ffcda17SArnaldo Carvalho de Melo case 'K': 4901758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols = !top->hide_kernel_symbols; 4918ffcda17SArnaldo Carvalho de Melo break; 492923c42c1SMike Galbraith case 'q': 493923c42c1SMike Galbraith case 'Q': 494923c42c1SMike Galbraith printf("exiting.\n"); 4951758af10SArnaldo Carvalho de Melo if (top->dump_symtab) 4961758af10SArnaldo Carvalho de Melo perf_session__fprintf_dsos(top->session, stderr); 497923c42c1SMike Galbraith exit(0); 498923c42c1SMike Galbraith case 's': 4991758af10SArnaldo Carvalho de Melo perf_top__prompt_symbol(top, "Enter details symbol"); 500923c42c1SMike Galbraith break; 501923c42c1SMike Galbraith case 'S': 5021758af10SArnaldo Carvalho de Melo if (!top->sym_filter_entry) 503923c42c1SMike Galbraith break; 504923c42c1SMike Galbraith else { 5051758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry; 506923c42c1SMike Galbraith 5071758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 508923c42c1SMike Galbraith __zero_source_counters(syme); 509923c42c1SMike Galbraith } 510923c42c1SMike Galbraith break; 5118ffcda17SArnaldo Carvalho de Melo case 'U': 5121758af10SArnaldo Carvalho de Melo top->hide_user_symbols = !top->hide_user_symbols; 5138ffcda17SArnaldo Carvalho de Melo break; 514923c42c1SMike Galbraith case 'z': 5151758af10SArnaldo Carvalho de Melo top->zero = !top->zero; 516923c42c1SMike Galbraith break; 51783a0944fSIngo Molnar default: 51883a0944fSIngo Molnar break; 519923c42c1SMike Galbraith } 520923c42c1SMike Galbraith } 521923c42c1SMike Galbraith 522ab81f3fdSArnaldo Carvalho de Melo static void perf_top__sort_new_samples(void *arg) 523ab81f3fdSArnaldo Carvalho de Melo { 524ab81f3fdSArnaldo Carvalho de Melo struct perf_top *t = arg; 525ab81f3fdSArnaldo Carvalho de Melo perf_top__reset_sample_counters(t); 526ab81f3fdSArnaldo Carvalho de Melo 527ab81f3fdSArnaldo Carvalho de Melo if (t->evlist->selected != NULL) 528ab81f3fdSArnaldo Carvalho de Melo t->sym_evsel = t->evlist->selected; 529ab81f3fdSArnaldo Carvalho de Melo 530ab81f3fdSArnaldo Carvalho de Melo hists__collapse_resort_threaded(&t->sym_evsel->hists); 531ab81f3fdSArnaldo Carvalho de Melo hists__output_resort_threaded(&t->sym_evsel->hists); 532b079d4e9SArnaldo Carvalho de Melo hists__decay_entries_threaded(&t->sym_evsel->hists, 5331758af10SArnaldo Carvalho de Melo t->hide_user_symbols, 5341758af10SArnaldo Carvalho de Melo t->hide_kernel_symbols); 535ab81f3fdSArnaldo Carvalho de Melo } 536ab81f3fdSArnaldo Carvalho de Melo 5371758af10SArnaldo Carvalho de Melo static void *display_thread_tui(void *arg) 538c0443df1SArnaldo Carvalho de Melo { 5390d37aa34SArnaldo Carvalho de Melo struct perf_evsel *pos; 5401758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 541ab81f3fdSArnaldo Carvalho de Melo const char *help = "For a higher level overview, try: perf top --sort comm,dso"; 542ab81f3fdSArnaldo Carvalho de Melo 5431758af10SArnaldo Carvalho de Melo perf_top__sort_new_samples(top); 5440d37aa34SArnaldo Carvalho de Melo 5450d37aa34SArnaldo Carvalho de Melo /* 5460d37aa34SArnaldo Carvalho de Melo * Initialize the uid_filter_str, in the future the TUI will allow 5470d37aa34SArnaldo Carvalho de Melo * Zooming in/out UIDs. For now juse use whatever the user passed 5480d37aa34SArnaldo Carvalho de Melo * via --uid. 5490d37aa34SArnaldo Carvalho de Melo */ 5500d37aa34SArnaldo Carvalho de Melo list_for_each_entry(pos, &top->evlist->entries, node) 5510d37aa34SArnaldo Carvalho de Melo pos->hists.uid_filter_str = top->uid_str; 5520d37aa34SArnaldo Carvalho de Melo 5531758af10SArnaldo Carvalho de Melo perf_evlist__tui_browse_hists(top->evlist, help, 554ab81f3fdSArnaldo Carvalho de Melo perf_top__sort_new_samples, 5551758af10SArnaldo Carvalho de Melo top, top->delay_secs); 556ab81f3fdSArnaldo Carvalho de Melo 557c0443df1SArnaldo Carvalho de Melo exit_browser(0); 558c0443df1SArnaldo Carvalho de Melo exit(0); 559c0443df1SArnaldo Carvalho de Melo return NULL; 560c0443df1SArnaldo Carvalho de Melo } 561c0443df1SArnaldo Carvalho de Melo 5621758af10SArnaldo Carvalho de Melo static void *display_thread(void *arg) 56386470930SIngo Molnar { 56486470930SIngo Molnar struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 565923c42c1SMike Galbraith struct termios tc, save; 5661758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 567923c42c1SMike Galbraith int delay_msecs, c; 56886470930SIngo Molnar 569923c42c1SMike Galbraith tcgetattr(0, &save); 570923c42c1SMike Galbraith tc = save; 571923c42c1SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 572923c42c1SMike Galbraith tc.c_cc[VMIN] = 0; 573923c42c1SMike Galbraith tc.c_cc[VTIME] = 0; 574091bd2e9SMike Galbraith 5753af6e338SArnaldo Carvalho de Melo pthread__unblock_sigwinch(); 576923c42c1SMike Galbraith repeat: 5771758af10SArnaldo Carvalho de Melo delay_msecs = top->delay_secs * 1000; 578923c42c1SMike Galbraith tcsetattr(0, TCSANOW, &tc); 579923c42c1SMike Galbraith /* trash return*/ 580923c42c1SMike Galbraith getc(stdin); 58186470930SIngo Molnar 5823af6e338SArnaldo Carvalho de Melo while (1) { 5831758af10SArnaldo Carvalho de Melo perf_top__print_sym_table(top); 5843af6e338SArnaldo Carvalho de Melo /* 5853af6e338SArnaldo Carvalho de Melo * Either timeout expired or we got an EINTR due to SIGWINCH, 5863af6e338SArnaldo Carvalho de Melo * refresh screen in both cases. 5873af6e338SArnaldo Carvalho de Melo */ 5883af6e338SArnaldo Carvalho de Melo switch (poll(&stdin_poll, 1, delay_msecs)) { 5893af6e338SArnaldo Carvalho de Melo case 0: 5903af6e338SArnaldo Carvalho de Melo continue; 5913af6e338SArnaldo Carvalho de Melo case -1: 5923af6e338SArnaldo Carvalho de Melo if (errno == EINTR) 5933af6e338SArnaldo Carvalho de Melo continue; 5943af6e338SArnaldo Carvalho de Melo /* Fall trhu */ 5953af6e338SArnaldo Carvalho de Melo default: 5963af6e338SArnaldo Carvalho de Melo goto process_hotkey; 5973af6e338SArnaldo Carvalho de Melo } 5983af6e338SArnaldo Carvalho de Melo } 5993af6e338SArnaldo Carvalho de Melo process_hotkey: 600923c42c1SMike Galbraith c = getc(stdin); 601923c42c1SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 602923c42c1SMike Galbraith 6031758af10SArnaldo Carvalho de Melo perf_top__handle_keypress(top, c); 604923c42c1SMike Galbraith goto repeat; 60586470930SIngo Molnar 60686470930SIngo Molnar return NULL; 60786470930SIngo Molnar } 60886470930SIngo Molnar 6092ab52083SAnton Blanchard /* Tag samples to be skipped. */ 610f37a291cSIngo Molnar static const char *skip_symbols[] = { 6112ab52083SAnton Blanchard "default_idle", 612b0e8572fSArnaldo Carvalho de Melo "native_safe_halt", 6132ab52083SAnton Blanchard "cpu_idle", 6142ab52083SAnton Blanchard "enter_idle", 6152ab52083SAnton Blanchard "exit_idle", 6162ab52083SAnton Blanchard "mwait_idle", 61759b90056SArnaldo Carvalho de Melo "mwait_idle_with_hints", 6188357275bSArnaldo Carvalho de Melo "poll_idle", 6193a3393efSAnton Blanchard "ppc64_runlatch_off", 6203a3393efSAnton Blanchard "pseries_dedicated_idle_sleep", 6212ab52083SAnton Blanchard NULL 6222ab52083SAnton Blanchard }; 6232ab52083SAnton Blanchard 624ab81f3fdSArnaldo Carvalho de Melo static int symbol_filter(struct map *map __used, struct symbol *sym) 62586470930SIngo Molnar { 62686470930SIngo Molnar const char *name = sym->name; 6272ab52083SAnton Blanchard int i; 62886470930SIngo Molnar 6293a3393efSAnton Blanchard /* 6303a3393efSAnton Blanchard * ppc64 uses function descriptors and appends a '.' to the 6313a3393efSAnton Blanchard * start of every instruction address. Remove it. 6323a3393efSAnton Blanchard */ 6333a3393efSAnton Blanchard if (name[0] == '.') 6343a3393efSAnton Blanchard name++; 6353a3393efSAnton Blanchard 63686470930SIngo Molnar if (!strcmp(name, "_text") || 63786470930SIngo Molnar !strcmp(name, "_etext") || 63886470930SIngo Molnar !strcmp(name, "_sinittext") || 63986470930SIngo Molnar !strncmp("init_module", name, 11) || 64086470930SIngo Molnar !strncmp("cleanup_module", name, 14) || 64186470930SIngo Molnar strstr(name, "_text_start") || 64286470930SIngo Molnar strstr(name, "_text_end")) 64386470930SIngo Molnar return 1; 64486470930SIngo Molnar 6452ab52083SAnton Blanchard for (i = 0; skip_symbols[i]; i++) { 6462ab52083SAnton Blanchard if (!strcmp(skip_symbols[i], name)) { 647171b3be9SArnaldo Carvalho de Melo sym->ignore = true; 6482ab52083SAnton Blanchard break; 6492ab52083SAnton Blanchard } 6502ab52083SAnton Blanchard } 65186470930SIngo Molnar 65286470930SIngo Molnar return 0; 65386470930SIngo Molnar } 65486470930SIngo Molnar 6551758af10SArnaldo Carvalho de Melo static void perf_event__process_sample(struct perf_tool *tool, 6561758af10SArnaldo Carvalho de Melo const union perf_event *event, 6577b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel, 6588d50e5b4SArnaldo Carvalho de Melo struct perf_sample *sample, 659743eb868SArnaldo Carvalho de Melo struct machine *machine) 66086470930SIngo Molnar { 6611758af10SArnaldo Carvalho de Melo struct perf_top *top = container_of(tool, struct perf_top, tool); 66219d4ac3cSArnaldo Carvalho de Melo struct symbol *parent = NULL; 6638115d60cSArnaldo Carvalho de Melo u64 ip = event->ip.ip; 6641ed091c4SArnaldo Carvalho de Melo struct addr_location al; 66519d4ac3cSArnaldo Carvalho de Melo int err; 6665b2bb75aSArnaldo Carvalho de Melo 66723346f21SArnaldo Carvalho de Melo if (!machine && perf_guest) { 668a1645ce1SZhang, Yanmin pr_err("Can't find guest [%d]'s kernel information\n", 6698115d60cSArnaldo Carvalho de Melo event->ip.pid); 670a1645ce1SZhang, Yanmin return; 671a1645ce1SZhang, Yanmin } 672a1645ce1SZhang, Yanmin 6738115d60cSArnaldo Carvalho de Melo if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) 6741758af10SArnaldo Carvalho de Melo top->exact_samples++; 6751676b8a0SPeter Zijlstra 676743eb868SArnaldo Carvalho de Melo if (perf_event__preprocess_sample(event, machine, &al, sample, 67741a37e20SArnaldo Carvalho de Melo symbol_filter) < 0 || 67872b8fa17SArnaldo Carvalho de Melo al.filtered) 6791ed091c4SArnaldo Carvalho de Melo return; 68086470930SIngo Molnar 6811758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && 6825f6f5580SArnaldo Carvalho de Melo symbol_conf.kptr_restrict && 6835f6f5580SArnaldo Carvalho de Melo al.cpumode == PERF_RECORD_MISC_KERNEL) { 6845f6f5580SArnaldo Carvalho de Melo ui__warning( 6855f6f5580SArnaldo Carvalho de Melo "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" 6865f6f5580SArnaldo Carvalho de Melo "Check /proc/sys/kernel/kptr_restrict.\n\n" 6875f6f5580SArnaldo Carvalho de Melo "Kernel%s samples will not be resolved.\n", 6885f6f5580SArnaldo Carvalho de Melo !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? 6895f6f5580SArnaldo Carvalho de Melo " modules" : ""); 6905f6f5580SArnaldo Carvalho de Melo if (use_browser <= 0) 6915f6f5580SArnaldo Carvalho de Melo sleep(5); 6921758af10SArnaldo Carvalho de Melo top->kptr_restrict_warned = true; 6935f6f5580SArnaldo Carvalho de Melo } 6945f6f5580SArnaldo Carvalho de Melo 69572b8fa17SArnaldo Carvalho de Melo if (al.sym == NULL) { 696e4a338d0SArnaldo Carvalho de Melo const char *msg = "Kernel samples will not be resolved.\n"; 69772b8fa17SArnaldo Carvalho de Melo /* 69872b8fa17SArnaldo Carvalho de Melo * As we do lazy loading of symtabs we only will know if the 69972b8fa17SArnaldo Carvalho de Melo * specified vmlinux file is invalid when we actually have a 70072b8fa17SArnaldo Carvalho de Melo * hit in kernel space and then try to load it. So if we get 70172b8fa17SArnaldo Carvalho de Melo * here and there are _no_ symbols in the DSO backing the 70272b8fa17SArnaldo Carvalho de Melo * kernel map, bail out. 70372b8fa17SArnaldo Carvalho de Melo * 70472b8fa17SArnaldo Carvalho de Melo * We may never get here, for instance, if we use -K/ 70572b8fa17SArnaldo Carvalho de Melo * --hide-kernel-symbols, even if the user specifies an 70672b8fa17SArnaldo Carvalho de Melo * invalid --vmlinux ;-) 70772b8fa17SArnaldo Carvalho de Melo */ 7081758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && !top->vmlinux_warned && 709e4a338d0SArnaldo Carvalho de Melo al.map == machine->vmlinux_maps[MAP__FUNCTION] && 71072b8fa17SArnaldo Carvalho de Melo RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { 711e4a338d0SArnaldo Carvalho de Melo if (symbol_conf.vmlinux_name) { 712e4a338d0SArnaldo Carvalho de Melo ui__warning("The %s file can't be used.\n%s", 713e4a338d0SArnaldo Carvalho de Melo symbol_conf.vmlinux_name, msg); 714e4a338d0SArnaldo Carvalho de Melo } else { 715e4a338d0SArnaldo Carvalho de Melo ui__warning("A vmlinux file was not found.\n%s", 716e4a338d0SArnaldo Carvalho de Melo msg); 717e4a338d0SArnaldo Carvalho de Melo } 718e4a338d0SArnaldo Carvalho de Melo 719e4a338d0SArnaldo Carvalho de Melo if (use_browser <= 0) 720e4a338d0SArnaldo Carvalho de Melo sleep(5); 7211758af10SArnaldo Carvalho de Melo top->vmlinux_warned = true; 72272b8fa17SArnaldo Carvalho de Melo } 72372b8fa17SArnaldo Carvalho de Melo } 72472b8fa17SArnaldo Carvalho de Melo 725ab81f3fdSArnaldo Carvalho de Melo if (al.sym == NULL || !al.sym->ignore) { 726ab81f3fdSArnaldo Carvalho de Melo struct hist_entry *he; 72770db7533SArnaldo Carvalho de Melo 72819d4ac3cSArnaldo Carvalho de Melo if ((sort__has_parent || symbol_conf.use_callchain) && 72919d4ac3cSArnaldo Carvalho de Melo sample->callchain) { 730743eb868SArnaldo Carvalho de Melo err = machine__resolve_callchain(machine, evsel, al.thread, 73119d4ac3cSArnaldo Carvalho de Melo sample->callchain, &parent); 73219d4ac3cSArnaldo Carvalho de Melo if (err) 73319d4ac3cSArnaldo Carvalho de Melo return; 73419d4ac3cSArnaldo Carvalho de Melo } 73519d4ac3cSArnaldo Carvalho de Melo 736743eb868SArnaldo Carvalho de Melo he = perf_evsel__add_hist_entry(evsel, &al, sample); 737ab81f3fdSArnaldo Carvalho de Melo if (he == NULL) { 738ab81f3fdSArnaldo Carvalho de Melo pr_err("Problem incrementing symbol period, skipping event\n"); 739ab81f3fdSArnaldo Carvalho de Melo return; 7405807806aSArnaldo Carvalho de Melo } 741ab81f3fdSArnaldo Carvalho de Melo 74219d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) { 743246d4ce8SArnaldo Carvalho de Melo err = callchain_append(he->callchain, &evsel->hists.callchain_cursor, 74419d4ac3cSArnaldo Carvalho de Melo sample->period); 74519d4ac3cSArnaldo Carvalho de Melo if (err) 74619d4ac3cSArnaldo Carvalho de Melo return; 74719d4ac3cSArnaldo Carvalho de Melo } 74819d4ac3cSArnaldo Carvalho de Melo 7491758af10SArnaldo Carvalho de Melo if (top->sort_has_symbols) 7501758af10SArnaldo Carvalho de Melo perf_top__record_precise_ip(top, he, evsel->idx, ip); 7515807806aSArnaldo Carvalho de Melo } 752ab81f3fdSArnaldo Carvalho de Melo 753ab81f3fdSArnaldo Carvalho de Melo return; 75486470930SIngo Molnar } 75586470930SIngo Molnar 7561758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read_idx(struct perf_top *top, int idx) 75786470930SIngo Molnar { 7588d50e5b4SArnaldo Carvalho de Melo struct perf_sample sample; 7597b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel; 7601758af10SArnaldo Carvalho de Melo struct perf_session *session = top->session; 7618115d60cSArnaldo Carvalho de Melo union perf_event *event; 762743eb868SArnaldo Carvalho de Melo struct machine *machine; 763743eb868SArnaldo Carvalho de Melo u8 origin; 7645538becaSFrederic Weisbecker int ret; 76586470930SIngo Molnar 7661758af10SArnaldo Carvalho de Melo while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { 7671758af10SArnaldo Carvalho de Melo ret = perf_session__parse_sample(session, event, &sample); 7685538becaSFrederic Weisbecker if (ret) { 7695538becaSFrederic Weisbecker pr_err("Can't parse sample, err = %d\n", ret); 7705538becaSFrederic Weisbecker continue; 7715538becaSFrederic Weisbecker } 77204391debSArnaldo Carvalho de Melo 7731758af10SArnaldo Carvalho de Melo evsel = perf_evlist__id2evsel(session->evlist, sample.id); 7747b27509fSArnaldo Carvalho de Melo assert(evsel != NULL); 7757b27509fSArnaldo Carvalho de Melo 776743eb868SArnaldo Carvalho de Melo origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 777743eb868SArnaldo Carvalho de Melo 7785b2bb75aSArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) 7791758af10SArnaldo Carvalho de Melo ++top->samples; 780743eb868SArnaldo Carvalho de Melo 781743eb868SArnaldo Carvalho de Melo switch (origin) { 782743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_USER: 7831758af10SArnaldo Carvalho de Melo ++top->us_samples; 7841758af10SArnaldo Carvalho de Melo if (top->hide_user_symbols) 785743eb868SArnaldo Carvalho de Melo continue; 7861758af10SArnaldo Carvalho de Melo machine = perf_session__find_host_machine(session); 787743eb868SArnaldo Carvalho de Melo break; 788743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_KERNEL: 7891758af10SArnaldo Carvalho de Melo ++top->kernel_samples; 7901758af10SArnaldo Carvalho de Melo if (top->hide_kernel_symbols) 791743eb868SArnaldo Carvalho de Melo continue; 7921758af10SArnaldo Carvalho de Melo machine = perf_session__find_host_machine(session); 793743eb868SArnaldo Carvalho de Melo break; 794743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_KERNEL: 7951758af10SArnaldo Carvalho de Melo ++top->guest_kernel_samples; 7961758af10SArnaldo Carvalho de Melo machine = perf_session__find_machine(session, event->ip.pid); 797743eb868SArnaldo Carvalho de Melo break; 798743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_USER: 7991758af10SArnaldo Carvalho de Melo ++top->guest_us_samples; 800743eb868SArnaldo Carvalho de Melo /* 801743eb868SArnaldo Carvalho de Melo * TODO: we don't process guest user from host side 802743eb868SArnaldo Carvalho de Melo * except simple counting. 803743eb868SArnaldo Carvalho de Melo */ 804743eb868SArnaldo Carvalho de Melo /* Fall thru */ 805743eb868SArnaldo Carvalho de Melo default: 806743eb868SArnaldo Carvalho de Melo continue; 807743eb868SArnaldo Carvalho de Melo } 808743eb868SArnaldo Carvalho de Melo 809743eb868SArnaldo Carvalho de Melo 8101758af10SArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) { 8111758af10SArnaldo Carvalho de Melo perf_event__process_sample(&top->tool, event, evsel, 8121758af10SArnaldo Carvalho de Melo &sample, machine); 8131758af10SArnaldo Carvalho de Melo } else if (event->header.type < PERF_RECORD_MAX) { 8147b27509fSArnaldo Carvalho de Melo hists__inc_nr_events(&evsel->hists, event->header.type); 8151758af10SArnaldo Carvalho de Melo perf_event__process(&top->tool, event, &sample, machine); 8167b27509fSArnaldo Carvalho de Melo } else 8171758af10SArnaldo Carvalho de Melo ++session->hists.stats.nr_unknown_events; 81886470930SIngo Molnar } 81986470930SIngo Molnar } 82086470930SIngo Molnar 8211758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read(struct perf_top *top) 8222f01190aSFrederic Weisbecker { 82370db7533SArnaldo Carvalho de Melo int i; 8242f01190aSFrederic Weisbecker 8251758af10SArnaldo Carvalho de Melo for (i = 0; i < top->evlist->nr_mmaps; i++) 8261758af10SArnaldo Carvalho de Melo perf_top__mmap_read_idx(top, i); 8272f01190aSFrederic Weisbecker } 8282f01190aSFrederic Weisbecker 8291758af10SArnaldo Carvalho de Melo static void perf_top__start_counters(struct perf_top *top) 83072cb7013SArnaldo Carvalho de Melo { 831727ab04eSArnaldo Carvalho de Melo struct perf_evsel *counter, *first; 8321758af10SArnaldo Carvalho de Melo struct perf_evlist *evlist = top->evlist; 833727ab04eSArnaldo Carvalho de Melo 834727ab04eSArnaldo Carvalho de Melo first = list_entry(evlist->entries.next, struct perf_evsel, node); 83572cb7013SArnaldo Carvalho de Melo 83672cb7013SArnaldo Carvalho de Melo list_for_each_entry(counter, &evlist->entries, node) { 83772cb7013SArnaldo Carvalho de Melo struct perf_event_attr *attr = &counter->attr; 838727ab04eSArnaldo Carvalho de Melo struct xyarray *group_fd = NULL; 839727ab04eSArnaldo Carvalho de Melo 8401758af10SArnaldo Carvalho de Melo if (top->group && counter != first) 841727ab04eSArnaldo Carvalho de Melo group_fd = first->fd; 84272cb7013SArnaldo Carvalho de Melo 84372cb7013SArnaldo Carvalho de Melo attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID; 84472cb7013SArnaldo Carvalho de Melo 8451758af10SArnaldo Carvalho de Melo if (top->freq) { 84672cb7013SArnaldo Carvalho de Melo attr->sample_type |= PERF_SAMPLE_PERIOD; 84772cb7013SArnaldo Carvalho de Melo attr->freq = 1; 8481758af10SArnaldo Carvalho de Melo attr->sample_freq = top->freq; 84972cb7013SArnaldo Carvalho de Melo } 85072cb7013SArnaldo Carvalho de Melo 85170db7533SArnaldo Carvalho de Melo if (evlist->nr_entries > 1) { 85270db7533SArnaldo Carvalho de Melo attr->sample_type |= PERF_SAMPLE_ID; 85370db7533SArnaldo Carvalho de Melo attr->read_format |= PERF_FORMAT_ID; 85470db7533SArnaldo Carvalho de Melo } 85570db7533SArnaldo Carvalho de Melo 85619d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) 85719d4ac3cSArnaldo Carvalho de Melo attr->sample_type |= PERF_SAMPLE_CALLCHAIN; 85819d4ac3cSArnaldo Carvalho de Melo 85972cb7013SArnaldo Carvalho de Melo attr->mmap = 1; 860ab81f3fdSArnaldo Carvalho de Melo attr->comm = 1; 8611758af10SArnaldo Carvalho de Melo attr->inherit = top->inherit; 8627b27509fSArnaldo Carvalho de Melo retry_sample_id: 8631758af10SArnaldo Carvalho de Melo attr->sample_id_all = top->sample_id_all_avail ? 1 : 0; 86472cb7013SArnaldo Carvalho de Melo try_again: 8651758af10SArnaldo Carvalho de Melo if (perf_evsel__open(counter, top->evlist->cpus, 8661758af10SArnaldo Carvalho de Melo top->evlist->threads, top->group, 867727ab04eSArnaldo Carvalho de Melo group_fd) < 0) { 86872cb7013SArnaldo Carvalho de Melo int err = errno; 86972cb7013SArnaldo Carvalho de Melo 870c286c419SArnaldo Carvalho de Melo if (err == EPERM || err == EACCES) { 871b8631e6eSArnaldo Carvalho de Melo ui__error_paranoid(); 872c286c419SArnaldo Carvalho de Melo goto out_err; 8731758af10SArnaldo Carvalho de Melo } else if (err == EINVAL && top->sample_id_all_avail) { 8747b27509fSArnaldo Carvalho de Melo /* 8757b27509fSArnaldo Carvalho de Melo * Old kernel, no attr->sample_id_type_all field 8767b27509fSArnaldo Carvalho de Melo */ 8771758af10SArnaldo Carvalho de Melo top->sample_id_all_avail = false; 8787b27509fSArnaldo Carvalho de Melo goto retry_sample_id; 879c286c419SArnaldo Carvalho de Melo } 88072cb7013SArnaldo Carvalho de Melo /* 88172cb7013SArnaldo Carvalho de Melo * If it's cycles then fall back to hrtimer 88272cb7013SArnaldo Carvalho de Melo * based cpu-clock-tick sw counter, which 88372cb7013SArnaldo Carvalho de Melo * is always available even if no PMU support: 88472cb7013SArnaldo Carvalho de Melo */ 88572cb7013SArnaldo Carvalho de Melo if (attr->type == PERF_TYPE_HARDWARE && 88672cb7013SArnaldo Carvalho de Melo attr->config == PERF_COUNT_HW_CPU_CYCLES) { 88772cb7013SArnaldo Carvalho de Melo if (verbose) 888c286c419SArnaldo Carvalho de Melo ui__warning("Cycles event not supported,\n" 889c286c419SArnaldo Carvalho de Melo "trying to fall back to cpu-clock-ticks\n"); 89072cb7013SArnaldo Carvalho de Melo 89172cb7013SArnaldo Carvalho de Melo attr->type = PERF_TYPE_SOFTWARE; 89272cb7013SArnaldo Carvalho de Melo attr->config = PERF_COUNT_SW_CPU_CLOCK; 89372cb7013SArnaldo Carvalho de Melo goto try_again; 89472cb7013SArnaldo Carvalho de Melo } 895c286c419SArnaldo Carvalho de Melo 896ca6a4258SDavid Ahern if (err == ENOENT) { 897ca6a4258SDavid Ahern ui__warning("The %s event is not supported.\n", 898ca6a4258SDavid Ahern event_name(counter)); 899ca6a4258SDavid Ahern goto out_err; 900cdce4459SNamhyung Kim } else if (err == EMFILE) { 901cdce4459SNamhyung Kim ui__warning("Too many events are opened.\n" 902cdce4459SNamhyung Kim "Try again after reducing the number of events\n"); 903cdce4459SNamhyung Kim goto out_err; 904ca6a4258SDavid Ahern } 905ca6a4258SDavid Ahern 906c286c419SArnaldo Carvalho de Melo ui__warning("The sys_perf_event_open() syscall " 907c286c419SArnaldo Carvalho de Melo "returned with %d (%s). /bin/dmesg " 908c286c419SArnaldo Carvalho de Melo "may provide additional information.\n" 909c286c419SArnaldo Carvalho de Melo "No CONFIG_PERF_EVENTS=y kernel support " 910c286c419SArnaldo Carvalho de Melo "configured?\n", err, strerror(err)); 911c286c419SArnaldo Carvalho de Melo goto out_err; 91272cb7013SArnaldo Carvalho de Melo } 91372cb7013SArnaldo Carvalho de Melo } 91470db7533SArnaldo Carvalho de Melo 9151758af10SArnaldo Carvalho de Melo if (perf_evlist__mmap(evlist, top->mmap_pages, false) < 0) { 916c286c419SArnaldo Carvalho de Melo ui__warning("Failed to mmap with %d (%s)\n", 917c286c419SArnaldo Carvalho de Melo errno, strerror(errno)); 918c286c419SArnaldo Carvalho de Melo goto out_err; 919c286c419SArnaldo Carvalho de Melo } 920c286c419SArnaldo Carvalho de Melo 921c286c419SArnaldo Carvalho de Melo return; 922c286c419SArnaldo Carvalho de Melo 923c286c419SArnaldo Carvalho de Melo out_err: 924c286c419SArnaldo Carvalho de Melo exit_browser(0); 925c286c419SArnaldo Carvalho de Melo exit(0); 92672cb7013SArnaldo Carvalho de Melo } 92772cb7013SArnaldo Carvalho de Melo 9281758af10SArnaldo Carvalho de Melo static int perf_top__setup_sample_type(struct perf_top *top) 92919d4ac3cSArnaldo Carvalho de Melo { 9301758af10SArnaldo Carvalho de Melo if (!top->sort_has_symbols) { 93119d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) { 93219d4ac3cSArnaldo Carvalho de Melo ui__warning("Selected -g but \"sym\" not present in --sort/-s."); 93319d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 93419d4ac3cSArnaldo Carvalho de Melo } 9351758af10SArnaldo Carvalho de Melo } else if (!top->dont_use_callchains && callchain_param.mode != CHAIN_NONE) { 93619d4ac3cSArnaldo Carvalho de Melo if (callchain_register_param(&callchain_param) < 0) { 93719d4ac3cSArnaldo Carvalho de Melo ui__warning("Can't register callchain params.\n"); 93819d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 93919d4ac3cSArnaldo Carvalho de Melo } 94019d4ac3cSArnaldo Carvalho de Melo } 94119d4ac3cSArnaldo Carvalho de Melo 94219d4ac3cSArnaldo Carvalho de Melo return 0; 94319d4ac3cSArnaldo Carvalho de Melo } 94419d4ac3cSArnaldo Carvalho de Melo 9451758af10SArnaldo Carvalho de Melo static int __cmd_top(struct perf_top *top) 946716c69feSIngo Molnar { 947716c69feSIngo Molnar pthread_t thread; 94819d4ac3cSArnaldo Carvalho de Melo int ret; 949d8f66248SArnaldo Carvalho de Melo /* 950b3165f41SArnaldo Carvalho de Melo * FIXME: perf_session__new should allow passing a O_MMAP, so that all this 951b3165f41SArnaldo Carvalho de Melo * mmap reading, etc is encapsulated in it. Use O_WRONLY for now. 952d8f66248SArnaldo Carvalho de Melo */ 9531758af10SArnaldo Carvalho de Melo top->session = perf_session__new(NULL, O_WRONLY, false, false, NULL); 9541758af10SArnaldo Carvalho de Melo if (top->session == NULL) 955b3165f41SArnaldo Carvalho de Melo return -ENOMEM; 956716c69feSIngo Molnar 9571758af10SArnaldo Carvalho de Melo ret = perf_top__setup_sample_type(top); 95819d4ac3cSArnaldo Carvalho de Melo if (ret) 95919d4ac3cSArnaldo Carvalho de Melo goto out_delete; 96019d4ac3cSArnaldo Carvalho de Melo 9610d37aa34SArnaldo Carvalho de Melo if (top->target_tid != -1 || top->uid != UINT_MAX) 9621758af10SArnaldo Carvalho de Melo perf_event__synthesize_thread_map(&top->tool, top->evlist->threads, 963743eb868SArnaldo Carvalho de Melo perf_event__process, 9641758af10SArnaldo Carvalho de Melo &top->session->host_machine); 9655b2bb75aSArnaldo Carvalho de Melo else 9661758af10SArnaldo Carvalho de Melo perf_event__synthesize_threads(&top->tool, perf_event__process, 9671758af10SArnaldo Carvalho de Melo &top->session->host_machine); 9681758af10SArnaldo Carvalho de Melo perf_top__start_counters(top); 9691758af10SArnaldo Carvalho de Melo top->session->evlist = top->evlist; 9701758af10SArnaldo Carvalho de Melo perf_session__update_sample_type(top->session); 97186470930SIngo Molnar 9722f01190aSFrederic Weisbecker /* Wait for a minimal set of events before starting the snapshot */ 9731758af10SArnaldo Carvalho de Melo poll(top->evlist->pollfd, top->evlist->nr_fds, 100); 9742f01190aSFrederic Weisbecker 9751758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 9762f01190aSFrederic Weisbecker 977c0443df1SArnaldo Carvalho de Melo if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : 9781758af10SArnaldo Carvalho de Melo display_thread), top)) { 97986470930SIngo Molnar printf("Could not create display thread.\n"); 98086470930SIngo Molnar exit(-1); 98186470930SIngo Molnar } 98286470930SIngo Molnar 9831758af10SArnaldo Carvalho de Melo if (top->realtime_prio) { 98486470930SIngo Molnar struct sched_param param; 98586470930SIngo Molnar 9861758af10SArnaldo Carvalho de Melo param.sched_priority = top->realtime_prio; 98786470930SIngo Molnar if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { 98886470930SIngo Molnar printf("Could not set realtime priority.\n"); 98986470930SIngo Molnar exit(-1); 99086470930SIngo Molnar } 99186470930SIngo Molnar } 99286470930SIngo Molnar 99386470930SIngo Molnar while (1) { 9941758af10SArnaldo Carvalho de Melo u64 hits = top->samples; 99586470930SIngo Molnar 9961758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 99786470930SIngo Molnar 9981758af10SArnaldo Carvalho de Melo if (hits == top->samples) 9991758af10SArnaldo Carvalho de Melo ret = poll(top->evlist->pollfd, top->evlist->nr_fds, 100); 100086470930SIngo Molnar } 100186470930SIngo Molnar 100219d4ac3cSArnaldo Carvalho de Melo out_delete: 10031758af10SArnaldo Carvalho de Melo perf_session__delete(top->session); 10041758af10SArnaldo Carvalho de Melo top->session = NULL; 100519d4ac3cSArnaldo Carvalho de Melo 100619d4ac3cSArnaldo Carvalho de Melo return 0; 100719d4ac3cSArnaldo Carvalho de Melo } 100819d4ac3cSArnaldo Carvalho de Melo 100919d4ac3cSArnaldo Carvalho de Melo static int 10101758af10SArnaldo Carvalho de Melo parse_callchain_opt(const struct option *opt, const char *arg, int unset) 101119d4ac3cSArnaldo Carvalho de Melo { 10121758af10SArnaldo Carvalho de Melo struct perf_top *top = (struct perf_top *)opt->value; 101319d4ac3cSArnaldo Carvalho de Melo char *tok, *tok2; 101419d4ac3cSArnaldo Carvalho de Melo char *endptr; 101519d4ac3cSArnaldo Carvalho de Melo 101619d4ac3cSArnaldo Carvalho de Melo /* 101719d4ac3cSArnaldo Carvalho de Melo * --no-call-graph 101819d4ac3cSArnaldo Carvalho de Melo */ 101919d4ac3cSArnaldo Carvalho de Melo if (unset) { 10201758af10SArnaldo Carvalho de Melo top->dont_use_callchains = true; 102119d4ac3cSArnaldo Carvalho de Melo return 0; 102219d4ac3cSArnaldo Carvalho de Melo } 102319d4ac3cSArnaldo Carvalho de Melo 102419d4ac3cSArnaldo Carvalho de Melo symbol_conf.use_callchain = true; 102519d4ac3cSArnaldo Carvalho de Melo 102619d4ac3cSArnaldo Carvalho de Melo if (!arg) 102719d4ac3cSArnaldo Carvalho de Melo return 0; 102819d4ac3cSArnaldo Carvalho de Melo 102919d4ac3cSArnaldo Carvalho de Melo tok = strtok((char *)arg, ","); 103019d4ac3cSArnaldo Carvalho de Melo if (!tok) 103119d4ac3cSArnaldo Carvalho de Melo return -1; 103219d4ac3cSArnaldo Carvalho de Melo 103319d4ac3cSArnaldo Carvalho de Melo /* get the output mode */ 103419d4ac3cSArnaldo Carvalho de Melo if (!strncmp(tok, "graph", strlen(arg))) 103519d4ac3cSArnaldo Carvalho de Melo callchain_param.mode = CHAIN_GRAPH_ABS; 103619d4ac3cSArnaldo Carvalho de Melo 103719d4ac3cSArnaldo Carvalho de Melo else if (!strncmp(tok, "flat", strlen(arg))) 103819d4ac3cSArnaldo Carvalho de Melo callchain_param.mode = CHAIN_FLAT; 103919d4ac3cSArnaldo Carvalho de Melo 104019d4ac3cSArnaldo Carvalho de Melo else if (!strncmp(tok, "fractal", strlen(arg))) 104119d4ac3cSArnaldo Carvalho de Melo callchain_param.mode = CHAIN_GRAPH_REL; 104219d4ac3cSArnaldo Carvalho de Melo 104319d4ac3cSArnaldo Carvalho de Melo else if (!strncmp(tok, "none", strlen(arg))) { 104419d4ac3cSArnaldo Carvalho de Melo callchain_param.mode = CHAIN_NONE; 104519d4ac3cSArnaldo Carvalho de Melo symbol_conf.use_callchain = false; 104619d4ac3cSArnaldo Carvalho de Melo 104719d4ac3cSArnaldo Carvalho de Melo return 0; 1048806fb630SArnaldo Carvalho de Melo } else 104919d4ac3cSArnaldo Carvalho de Melo return -1; 105019d4ac3cSArnaldo Carvalho de Melo 105119d4ac3cSArnaldo Carvalho de Melo /* get the min percentage */ 105219d4ac3cSArnaldo Carvalho de Melo tok = strtok(NULL, ","); 105319d4ac3cSArnaldo Carvalho de Melo if (!tok) 105419d4ac3cSArnaldo Carvalho de Melo goto setup; 105519d4ac3cSArnaldo Carvalho de Melo 105619d4ac3cSArnaldo Carvalho de Melo callchain_param.min_percent = strtod(tok, &endptr); 105719d4ac3cSArnaldo Carvalho de Melo if (tok == endptr) 105819d4ac3cSArnaldo Carvalho de Melo return -1; 105919d4ac3cSArnaldo Carvalho de Melo 106019d4ac3cSArnaldo Carvalho de Melo /* get the print limit */ 106119d4ac3cSArnaldo Carvalho de Melo tok2 = strtok(NULL, ","); 106219d4ac3cSArnaldo Carvalho de Melo if (!tok2) 106319d4ac3cSArnaldo Carvalho de Melo goto setup; 106419d4ac3cSArnaldo Carvalho de Melo 106519d4ac3cSArnaldo Carvalho de Melo if (tok2[0] != 'c') { 106619d4ac3cSArnaldo Carvalho de Melo callchain_param.print_limit = strtod(tok2, &endptr); 106719d4ac3cSArnaldo Carvalho de Melo tok2 = strtok(NULL, ","); 106819d4ac3cSArnaldo Carvalho de Melo if (!tok2) 106919d4ac3cSArnaldo Carvalho de Melo goto setup; 107019d4ac3cSArnaldo Carvalho de Melo } 107119d4ac3cSArnaldo Carvalho de Melo 107219d4ac3cSArnaldo Carvalho de Melo /* get the call chain order */ 107319d4ac3cSArnaldo Carvalho de Melo if (!strcmp(tok2, "caller")) 107419d4ac3cSArnaldo Carvalho de Melo callchain_param.order = ORDER_CALLER; 107519d4ac3cSArnaldo Carvalho de Melo else if (!strcmp(tok2, "callee")) 107619d4ac3cSArnaldo Carvalho de Melo callchain_param.order = ORDER_CALLEE; 107719d4ac3cSArnaldo Carvalho de Melo else 107819d4ac3cSArnaldo Carvalho de Melo return -1; 107919d4ac3cSArnaldo Carvalho de Melo setup: 108019d4ac3cSArnaldo Carvalho de Melo if (callchain_register_param(&callchain_param) < 0) { 108119d4ac3cSArnaldo Carvalho de Melo fprintf(stderr, "Can't register callchain params\n"); 108219d4ac3cSArnaldo Carvalho de Melo return -1; 108319d4ac3cSArnaldo Carvalho de Melo } 108486470930SIngo Molnar return 0; 108586470930SIngo Molnar } 108686470930SIngo Molnar 108786470930SIngo Molnar static const char * const top_usage[] = { 108886470930SIngo Molnar "perf top [<options>]", 108986470930SIngo Molnar NULL 109086470930SIngo Molnar }; 109186470930SIngo Molnar 10921758af10SArnaldo Carvalho de Melo int cmd_top(int argc, const char **argv, const char *prefix __used) 10931758af10SArnaldo Carvalho de Melo { 10941758af10SArnaldo Carvalho de Melo struct perf_evsel *pos; 10951758af10SArnaldo Carvalho de Melo int status = -ENOMEM; 10961758af10SArnaldo Carvalho de Melo struct perf_top top = { 10971758af10SArnaldo Carvalho de Melo .count_filter = 5, 10981758af10SArnaldo Carvalho de Melo .delay_secs = 2, 10991758af10SArnaldo Carvalho de Melo .target_pid = -1, 11001758af10SArnaldo Carvalho de Melo .target_tid = -1, 11010d37aa34SArnaldo Carvalho de Melo .uid = UINT_MAX, 11021758af10SArnaldo Carvalho de Melo .freq = 1000, /* 1 KHz */ 11031758af10SArnaldo Carvalho de Melo .sample_id_all_avail = true, 11041758af10SArnaldo Carvalho de Melo .mmap_pages = 128, 11051758af10SArnaldo Carvalho de Melo .sym_pcnt_filter = 5, 11061758af10SArnaldo Carvalho de Melo }; 11071758af10SArnaldo Carvalho de Melo char callchain_default_opt[] = "fractal,0.5,callee"; 11081758af10SArnaldo Carvalho de Melo const struct option options[] = { 11098c3e10ebSArnaldo Carvalho de Melo OPT_CALLBACK('e', "event", &top.evlist, "event", 111086470930SIngo Molnar "event selector. use 'perf list' to list available events", 1111f120f9d5SJiri Olsa parse_events_option), 11121758af10SArnaldo Carvalho de Melo OPT_INTEGER('c', "count", &top.default_interval, 111386470930SIngo Molnar "event period to sample"), 11148c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('p', "pid", &top.target_pid, 1115d6d901c2SZhang, Yanmin "profile events on existing process id"), 11168c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('t', "tid", &top.target_tid, 1117d6d901c2SZhang, Yanmin "profile events on existing thread id"), 11181758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('a', "all-cpus", &top.system_wide, 111986470930SIngo Molnar "system-wide collection from all CPUs"), 11208c3e10ebSArnaldo Carvalho de Melo OPT_STRING('C', "cpu", &top.cpu_list, "cpu", 1121c45c6ea2SStephane Eranian "list of cpus to monitor"), 1122b32d133aSArnaldo Carvalho de Melo OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1123b32d133aSArnaldo Carvalho de Melo "file", "vmlinux pathname"), 11248c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, 11258ffcda17SArnaldo Carvalho de Melo "hide kernel symbols"), 11261758af10SArnaldo Carvalho de Melo OPT_UINTEGER('m', "mmap-pages", &top.mmap_pages, "number of mmap data pages"), 11271758af10SArnaldo Carvalho de Melo OPT_INTEGER('r', "realtime", &top.realtime_prio, 112886470930SIngo Molnar "collect data with this RT SCHED_FIFO priority"), 11298c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('d', "delay", &top.delay_secs, 113086470930SIngo Molnar "number of seconds to delay between refreshes"), 11311758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, 113286470930SIngo Molnar "dump the symbol table used for profiling"), 11338c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('f', "count-filter", &top.count_filter, 113486470930SIngo Molnar "only display functions with more events than this"), 11351758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('g', "group", &top.group, 113686470930SIngo Molnar "put the counters into a counter group"), 11371758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('i', "inherit", &top.inherit, 11380fdc7e67SMike Galbraith "child tasks inherit counters"), 11391758af10SArnaldo Carvalho de Melo OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", 11406cff0e8dSKirill Smelkov "symbol to annotate"), 11418c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('z', "zero", &top.zero, 114286470930SIngo Molnar "zero history across updates"), 11438c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('F', "freq", &top.freq, 114486470930SIngo Molnar "profile at this frequency"), 11458c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('E', "entries", &top.print_entries, 114686470930SIngo Molnar "display this many functions"), 11478c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, 11488ffcda17SArnaldo Carvalho de Melo "hide user symbols"), 11491758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), 11501758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), 1151c0555642SIan Munsie OPT_INCR('v', "verbose", &verbose, 11523da297a6SIngo Molnar "be more verbose (show counter open errors, etc)"), 1153ab81f3fdSArnaldo Carvalho de Melo OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 1154ab81f3fdSArnaldo Carvalho de Melo "sort by key(s): pid, comm, dso, symbol, parent"), 1155ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 1156ab81f3fdSArnaldo Carvalho de Melo "Show a column with the number of samples"), 11571758af10SArnaldo Carvalho de Melo OPT_CALLBACK_DEFAULT('G', "call-graph", &top, "output_type,min_percent, call_order", 115819d4ac3cSArnaldo Carvalho de Melo "Display callchains using output_type (graph, flat, fractal, or none), min percent threshold and callchain order. " 115919d4ac3cSArnaldo Carvalho de Melo "Default: fractal,0.5,callee", &parse_callchain_opt, 116019d4ac3cSArnaldo Carvalho de Melo callchain_default_opt), 1161ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 1162ab81f3fdSArnaldo Carvalho de Melo "Show a column with the sum of periods"), 1163ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 1164ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these dsos"), 1165ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1166ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these comms"), 1167ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1168ab81f3fdSArnaldo Carvalho de Melo "only consider these symbols"), 116964c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, 117064c6f0c7SArnaldo Carvalho de Melo "Interleave source code with assembly code (default)"), 117164c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, 117264c6f0c7SArnaldo Carvalho de Melo "Display raw encoding of assembly instructions (default)"), 117364c6f0c7SArnaldo Carvalho de Melo OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", 117464c6f0c7SArnaldo Carvalho de Melo "Specify disassembler style (e.g. -M intel for intel syntax)"), 11750d37aa34SArnaldo Carvalho de Melo OPT_STRING('u', "uid", &top.uid_str, "user", "user to profile"), 117686470930SIngo Molnar OPT_END() 117786470930SIngo Molnar }; 117886470930SIngo Molnar 11798c3e10ebSArnaldo Carvalho de Melo top.evlist = perf_evlist__new(NULL, NULL); 11808c3e10ebSArnaldo Carvalho de Melo if (top.evlist == NULL) 1181361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1182361c99a6SArnaldo Carvalho de Melo 1183ab81f3fdSArnaldo Carvalho de Melo symbol_conf.exclude_other = false; 118486470930SIngo Molnar 118586470930SIngo Molnar argc = parse_options(argc, argv, options, top_usage, 0); 118686470930SIngo Molnar if (argc) 118786470930SIngo Molnar usage_with_options(top_usage, options); 118886470930SIngo Molnar 1189ab81f3fdSArnaldo Carvalho de Melo if (sort_order == default_sort_order) 1190ab81f3fdSArnaldo Carvalho de Melo sort_order = "dso,symbol"; 1191ab81f3fdSArnaldo Carvalho de Melo 1192ab81f3fdSArnaldo Carvalho de Melo setup_sorting(top_usage, options); 1193ab81f3fdSArnaldo Carvalho de Melo 11941758af10SArnaldo Carvalho de Melo if (top.use_stdio) 1195c0443df1SArnaldo Carvalho de Melo use_browser = 0; 11961758af10SArnaldo Carvalho de Melo else if (top.use_tui) 1197c0443df1SArnaldo Carvalho de Melo use_browser = 1; 1198c0443df1SArnaldo Carvalho de Melo 1199c0443df1SArnaldo Carvalho de Melo setup_browser(false); 1200c0443df1SArnaldo Carvalho de Melo 12010d37aa34SArnaldo Carvalho de Melo top.uid = parse_target_uid(top.uid_str, top.target_tid, top.target_pid); 12020d37aa34SArnaldo Carvalho de Melo if (top.uid_str != NULL && top.uid == UINT_MAX - 1) 12030d37aa34SArnaldo Carvalho de Melo goto out_delete_evlist; 12040d37aa34SArnaldo Carvalho de Melo 120586470930SIngo Molnar /* CPU and PID are mutually exclusive */ 12068c3e10ebSArnaldo Carvalho de Melo if (top.target_tid > 0 && top.cpu_list) { 120786470930SIngo Molnar printf("WARNING: PID switch overriding CPU\n"); 120886470930SIngo Molnar sleep(1); 12098c3e10ebSArnaldo Carvalho de Melo top.cpu_list = NULL; 121086470930SIngo Molnar } 121186470930SIngo Molnar 12128c3e10ebSArnaldo Carvalho de Melo if (top.target_pid != -1) 12138c3e10ebSArnaldo Carvalho de Melo top.target_tid = top.target_pid; 12147e2ed097SArnaldo Carvalho de Melo 12158c3e10ebSArnaldo Carvalho de Melo if (perf_evlist__create_maps(top.evlist, top.target_pid, 12160d37aa34SArnaldo Carvalho de Melo top.target_tid, top.uid, top.cpu_list) < 0) 12177e2ed097SArnaldo Carvalho de Melo usage_with_options(top_usage, options); 12187e2ed097SArnaldo Carvalho de Melo 12198c3e10ebSArnaldo Carvalho de Melo if (!top.evlist->nr_entries && 12208c3e10ebSArnaldo Carvalho de Melo perf_evlist__add_default(top.evlist) < 0) { 122169aad6f1SArnaldo Carvalho de Melo pr_err("Not enough memory for event selector list\n"); 122269aad6f1SArnaldo Carvalho de Melo return -ENOMEM; 122369aad6f1SArnaldo Carvalho de Melo } 12245a8e5a30SArnaldo Carvalho de Melo 1225d04b35f8SArnaldo Carvalho de Melo symbol_conf.nr_events = top.evlist->nr_entries; 1226d04b35f8SArnaldo Carvalho de Melo 12278c3e10ebSArnaldo Carvalho de Melo if (top.delay_secs < 1) 12288c3e10ebSArnaldo Carvalho de Melo top.delay_secs = 1; 122986470930SIngo Molnar 12307e4ff9e3SMike Galbraith /* 12317e4ff9e3SMike Galbraith * User specified count overrides default frequency. 12327e4ff9e3SMike Galbraith */ 12331758af10SArnaldo Carvalho de Melo if (top.default_interval) 12348c3e10ebSArnaldo Carvalho de Melo top.freq = 0; 12358c3e10ebSArnaldo Carvalho de Melo else if (top.freq) { 12361758af10SArnaldo Carvalho de Melo top.default_interval = top.freq; 12377e4ff9e3SMike Galbraith } else { 12387e4ff9e3SMike Galbraith fprintf(stderr, "frequency and count are zero, aborting\n"); 12397e4ff9e3SMike Galbraith exit(EXIT_FAILURE); 12407e4ff9e3SMike Galbraith } 12417e4ff9e3SMike Galbraith 12428c3e10ebSArnaldo Carvalho de Melo list_for_each_entry(pos, &top.evlist->entries, node) { 124369aad6f1SArnaldo Carvalho de Melo /* 124469aad6f1SArnaldo Carvalho de Melo * Fill in the ones not specifically initialized via -c: 124569aad6f1SArnaldo Carvalho de Melo */ 1246806fb630SArnaldo Carvalho de Melo if (!pos->attr.sample_period) 12471758af10SArnaldo Carvalho de Melo pos->attr.sample_period = top.default_interval; 124869aad6f1SArnaldo Carvalho de Melo } 124969aad6f1SArnaldo Carvalho de Melo 12508c3e10ebSArnaldo Carvalho de Melo top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); 1251cc841580SArnaldo Carvalho de Melo 1252ab81f3fdSArnaldo Carvalho de Melo symbol_conf.priv_size = sizeof(struct annotation); 125369aad6f1SArnaldo Carvalho de Melo 125469aad6f1SArnaldo Carvalho de Melo symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); 125569aad6f1SArnaldo Carvalho de Melo if (symbol__init() < 0) 125669aad6f1SArnaldo Carvalho de Melo return -1; 125769aad6f1SArnaldo Carvalho de Melo 1258ab81f3fdSArnaldo Carvalho de Melo sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout); 1259ab81f3fdSArnaldo Carvalho de Melo sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout); 1260ab81f3fdSArnaldo Carvalho de Melo sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout); 1261ab81f3fdSArnaldo Carvalho de Melo 126219d4ac3cSArnaldo Carvalho de Melo /* 126319d4ac3cSArnaldo Carvalho de Melo * Avoid annotation data structures overhead when symbols aren't on the 126419d4ac3cSArnaldo Carvalho de Melo * sort list. 126519d4ac3cSArnaldo Carvalho de Melo */ 12661758af10SArnaldo Carvalho de Melo top.sort_has_symbols = sort_sym.list.next != NULL; 126719d4ac3cSArnaldo Carvalho de Melo 12681758af10SArnaldo Carvalho de Melo get_term_dimensions(&top.winsize); 12698c3e10ebSArnaldo Carvalho de Melo if (top.print_entries == 0) { 12701758af10SArnaldo Carvalho de Melo struct sigaction act = { 12711758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 12721758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 12731758af10SArnaldo Carvalho de Melo }; 12741758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(&top); 12751758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 12763b6ed988SArnaldo Carvalho de Melo } 12773b6ed988SArnaldo Carvalho de Melo 12781758af10SArnaldo Carvalho de Melo status = __cmd_top(&top); 1279806fb630SArnaldo Carvalho de Melo 12800d37aa34SArnaldo Carvalho de Melo out_delete_evlist: 12818c3e10ebSArnaldo Carvalho de Melo perf_evlist__delete(top.evlist); 128269aad6f1SArnaldo Carvalho de Melo 128369aad6f1SArnaldo Carvalho de Melo return status; 128486470930SIngo Molnar } 1285