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 if (top->print_entries > 9) 921758af10SArnaldo Carvalho de Melo top->print_entries -= 9; 933b6ed988SArnaldo Carvalho de Melo } 943b6ed988SArnaldo Carvalho de Melo 951758af10SArnaldo Carvalho de Melo static void perf_top__sig_winch(int sig __used, siginfo_t *info __used, void *arg) 963b6ed988SArnaldo Carvalho de Melo { 971758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 981758af10SArnaldo Carvalho de Melo 991758af10SArnaldo Carvalho de Melo get_term_dimensions(&top->winsize); 100509605dbSStephane Eranian if (!top->print_entries 101509605dbSStephane Eranian || (top->print_entries+4) > top->winsize.ws_row) { 102509605dbSStephane Eranian top->print_entries = top->winsize.ws_row; 103509605dbSStephane Eranian } else { 104509605dbSStephane Eranian top->print_entries += 4; 105509605dbSStephane Eranian top->winsize.ws_row = top->print_entries; 106509605dbSStephane Eranian } 1071758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(top); 1083b6ed988SArnaldo Carvalho de Melo } 1093b6ed988SArnaldo Carvalho de Melo 1101758af10SArnaldo Carvalho de Melo static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) 111923c42c1SMike Galbraith { 112923c42c1SMike Galbraith struct symbol *sym; 113ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 114439d473bSArnaldo Carvalho de Melo struct map *map; 11536532461SArnaldo Carvalho de Melo int err = -1; 116923c42c1SMike Galbraith 117ab81f3fdSArnaldo Carvalho de Melo if (!he || !he->ms.sym) 118b0a9ab62SArnaldo Carvalho de Melo return -1; 119b0a9ab62SArnaldo Carvalho de Melo 120ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 121ab81f3fdSArnaldo Carvalho de Melo map = he->ms.map; 122b0a9ab62SArnaldo Carvalho de Melo 123b0a9ab62SArnaldo Carvalho de Melo /* 124b0a9ab62SArnaldo Carvalho de Melo * We can't annotate with just /proc/kallsyms 125b0a9ab62SArnaldo Carvalho de Melo */ 126878b439dSArnaldo Carvalho de Melo if (map->dso->symtab_type == SYMTAB__KALLSYMS) { 127ce6f4fabSArnaldo Carvalho de Melo pr_err("Can't annotate %s: No vmlinux file was found in the " 128ce6f4fabSArnaldo Carvalho de Melo "path\n", sym->name); 129ce6f4fabSArnaldo Carvalho de Melo sleep(1); 130b0a9ab62SArnaldo Carvalho de Melo return -1; 131b269876cSArnaldo Carvalho de Melo } 132b269876cSArnaldo Carvalho de Melo 133ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 134ce6f4fabSArnaldo Carvalho de Melo if (notes->src != NULL) { 135ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 136923c42c1SMike Galbraith goto out_assign; 137923c42c1SMike Galbraith } 138923c42c1SMike Galbraith 139ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 140923c42c1SMike Galbraith 141d04b35f8SArnaldo Carvalho de Melo if (symbol__alloc_hist(sym) < 0) { 142c97cf422SArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 14336532461SArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 14436532461SArnaldo Carvalho de Melo sym->name); 145ce6f4fabSArnaldo Carvalho de Melo sleep(1); 146c97cf422SArnaldo Carvalho de Melo return err; 147923c42c1SMike Galbraith } 14836532461SArnaldo Carvalho de Melo 149ab81f3fdSArnaldo Carvalho de Melo err = symbol__annotate(sym, map, 0); 15036532461SArnaldo Carvalho de Melo if (err == 0) { 151923c42c1SMike Galbraith out_assign: 1521758af10SArnaldo Carvalho de Melo top->sym_filter_entry = he; 15336532461SArnaldo Carvalho de Melo } 154c97cf422SArnaldo Carvalho de Melo 155ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 15636532461SArnaldo Carvalho de Melo return err; 157923c42c1SMike Galbraith } 158923c42c1SMike Galbraith 159ab81f3fdSArnaldo Carvalho de Melo static void __zero_source_counters(struct hist_entry *he) 160923c42c1SMike Galbraith { 161ab81f3fdSArnaldo Carvalho de Melo struct symbol *sym = he->ms.sym; 16236532461SArnaldo Carvalho de Melo symbol__annotate_zero_histograms(sym); 163923c42c1SMike Galbraith } 164923c42c1SMike Galbraith 1651758af10SArnaldo Carvalho de Melo static void perf_top__record_precise_ip(struct perf_top *top, 1661758af10SArnaldo Carvalho de Melo struct hist_entry *he, 1671758af10SArnaldo Carvalho de Melo int counter, u64 ip) 168923c42c1SMike Galbraith { 169ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 170ce6f4fabSArnaldo Carvalho de Melo struct symbol *sym; 171ce6f4fabSArnaldo Carvalho de Melo 172ab81f3fdSArnaldo Carvalho de Melo if (he == NULL || he->ms.sym == NULL || 1731758af10SArnaldo Carvalho de Melo ((top->sym_filter_entry == NULL || 1741758af10SArnaldo Carvalho de Melo top->sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1)) 175923c42c1SMike Galbraith return; 176923c42c1SMike Galbraith 177ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 178ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 179ce6f4fabSArnaldo Carvalho de Melo 180ce6f4fabSArnaldo Carvalho de Melo if (pthread_mutex_trylock(¬es->lock)) 181923c42c1SMike Galbraith return; 182923c42c1SMike Galbraith 183d04b35f8SArnaldo Carvalho de Melo if (notes->src == NULL && symbol__alloc_hist(sym) < 0) { 184ab81f3fdSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 185ab81f3fdSArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 186ab81f3fdSArnaldo Carvalho de Melo sym->name); 187ab81f3fdSArnaldo Carvalho de Melo sleep(1); 188ab81f3fdSArnaldo Carvalho de Melo return; 189ab81f3fdSArnaldo Carvalho de Melo } 190ab81f3fdSArnaldo Carvalho de Melo 191ab81f3fdSArnaldo Carvalho de Melo ip = he->ms.map->map_ip(he->ms.map, ip); 192ab81f3fdSArnaldo Carvalho de Melo symbol__inc_addr_samples(sym, he->ms.map, counter, ip); 193923c42c1SMike Galbraith 194ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 195923c42c1SMike Galbraith } 196923c42c1SMike Galbraith 1971758af10SArnaldo Carvalho de Melo static void perf_top__show_details(struct perf_top *top) 198923c42c1SMike Galbraith { 1991758af10SArnaldo Carvalho de Melo struct hist_entry *he = top->sym_filter_entry; 200ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 201923c42c1SMike Galbraith struct symbol *symbol; 20236532461SArnaldo Carvalho de Melo int more; 203923c42c1SMike Galbraith 204ab81f3fdSArnaldo Carvalho de Melo if (!he) 205923c42c1SMike Galbraith return; 206923c42c1SMike Galbraith 207ab81f3fdSArnaldo Carvalho de Melo symbol = he->ms.sym; 208ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(symbol); 209ce6f4fabSArnaldo Carvalho de Melo 210ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 211ce6f4fabSArnaldo Carvalho de Melo 212ce6f4fabSArnaldo Carvalho de Melo if (notes->src == NULL) 213ce6f4fabSArnaldo Carvalho de Melo goto out_unlock; 214923c42c1SMike Galbraith 2151758af10SArnaldo Carvalho de Melo printf("Showing %s for %s\n", event_name(top->sym_evsel), symbol->name); 2161758af10SArnaldo Carvalho de Melo printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); 217923c42c1SMike Galbraith 2181758af10SArnaldo Carvalho de Melo more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel->idx, 2191758af10SArnaldo Carvalho de Melo 0, top->sym_pcnt_filter, top->print_entries, 4); 2201758af10SArnaldo Carvalho de Melo if (top->zero) 2211758af10SArnaldo Carvalho de Melo symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); 22236532461SArnaldo Carvalho de Melo else 2231758af10SArnaldo Carvalho de Melo symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); 22436532461SArnaldo Carvalho de Melo if (more != 0) 225923c42c1SMike Galbraith printf("%d lines not displayed, maybe increase display entries [e]\n", more); 226ce6f4fabSArnaldo Carvalho de Melo out_unlock: 227ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 228923c42c1SMike Galbraith } 22986470930SIngo Molnar 23086470930SIngo Molnar static const char CONSOLE_CLEAR[] = "[H[2J"; 23186470930SIngo Molnar 232743eb868SArnaldo Carvalho de Melo static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel, 233ab81f3fdSArnaldo Carvalho de Melo struct addr_location *al, 234743eb868SArnaldo Carvalho de Melo struct perf_sample *sample) 23586470930SIngo Molnar { 236ab81f3fdSArnaldo Carvalho de Melo struct hist_entry *he; 237ab81f3fdSArnaldo Carvalho de Melo 238ab81f3fdSArnaldo Carvalho de Melo he = __hists__add_entry(&evsel->hists, al, NULL, sample->period); 239ab81f3fdSArnaldo Carvalho de Melo if (he == NULL) 240ab81f3fdSArnaldo Carvalho de Melo return NULL; 241ab81f3fdSArnaldo Carvalho de Melo 242ab81f3fdSArnaldo Carvalho de Melo hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); 243ab81f3fdSArnaldo Carvalho de Melo return he; 24486470930SIngo Molnar } 24586470930SIngo Molnar 2461758af10SArnaldo Carvalho de Melo static void perf_top__print_sym_table(struct perf_top *top) 24786470930SIngo Molnar { 2488c3e10ebSArnaldo Carvalho de Melo char bf[160]; 2498c3e10ebSArnaldo Carvalho de Melo int printed = 0; 2501758af10SArnaldo Carvalho de Melo const int win_width = top->winsize.ws_col - 1; 25186470930SIngo Molnar 25286470930SIngo Molnar puts(CONSOLE_CLEAR); 25386470930SIngo Molnar 2541758af10SArnaldo Carvalho de Melo perf_top__header_snprintf(top, bf, sizeof(bf)); 2558c3e10ebSArnaldo Carvalho de Melo printf("%s\n", bf); 25686470930SIngo Molnar 2571758af10SArnaldo Carvalho de Melo perf_top__reset_sample_counters(top); 25886470930SIngo Molnar 2591a105f74SArnaldo Carvalho de Melo printf("%-*.*s\n", win_width, win_width, graph_dotted_line); 26086470930SIngo Molnar 2611758af10SArnaldo Carvalho de Melo if (top->sym_evsel->hists.stats.nr_lost_warned != 2621758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) { 2631758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_lost_warned = 2641758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]; 2657b27509fSArnaldo Carvalho de Melo color_fprintf(stdout, PERF_COLOR_RED, 2667b27509fSArnaldo Carvalho de Melo "WARNING: LOST %d chunks, Check IO/CPU overload", 2671758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_lost_warned); 268ab81f3fdSArnaldo Carvalho de Melo ++printed; 26993fc64f1SArnaldo Carvalho de Melo } 27093fc64f1SArnaldo Carvalho de Melo 2711758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 2721758af10SArnaldo Carvalho de Melo perf_top__show_details(top); 273923c42c1SMike Galbraith return; 274923c42c1SMike Galbraith } 275923c42c1SMike Galbraith 2761758af10SArnaldo Carvalho de Melo hists__collapse_resort_threaded(&top->sym_evsel->hists); 2771758af10SArnaldo Carvalho de Melo hists__output_resort_threaded(&top->sym_evsel->hists); 2781758af10SArnaldo Carvalho de Melo hists__decay_entries_threaded(&top->sym_evsel->hists, 2791758af10SArnaldo Carvalho de Melo top->hide_user_symbols, 2801758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols); 2811758af10SArnaldo Carvalho de Melo hists__output_recalc_col_len(&top->sym_evsel->hists, 2821758af10SArnaldo Carvalho de Melo top->winsize.ws_row - 3); 2831a105f74SArnaldo Carvalho de Melo putchar('\n'); 2841758af10SArnaldo Carvalho de Melo hists__fprintf(&top->sym_evsel->hists, NULL, false, false, 2851758af10SArnaldo Carvalho de Melo top->winsize.ws_row - 4 - printed, win_width, stdout); 28686470930SIngo Molnar } 28786470930SIngo Molnar 288923c42c1SMike Galbraith static void prompt_integer(int *target, const char *msg) 289923c42c1SMike Galbraith { 290923c42c1SMike Galbraith char *buf = malloc(0), *p; 291923c42c1SMike Galbraith size_t dummy = 0; 292923c42c1SMike Galbraith int tmp; 293923c42c1SMike Galbraith 294923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 295923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 296923c42c1SMike Galbraith return; 297923c42c1SMike Galbraith 298923c42c1SMike Galbraith p = strchr(buf, '\n'); 299923c42c1SMike Galbraith if (p) 300923c42c1SMike Galbraith *p = 0; 301923c42c1SMike Galbraith 302923c42c1SMike Galbraith p = buf; 303923c42c1SMike Galbraith while(*p) { 304923c42c1SMike Galbraith if (!isdigit(*p)) 305923c42c1SMike Galbraith goto out_free; 306923c42c1SMike Galbraith p++; 307923c42c1SMike Galbraith } 308923c42c1SMike Galbraith tmp = strtoul(buf, NULL, 10); 309923c42c1SMike Galbraith *target = tmp; 310923c42c1SMike Galbraith out_free: 311923c42c1SMike Galbraith free(buf); 312923c42c1SMike Galbraith } 313923c42c1SMike Galbraith 314923c42c1SMike Galbraith static void prompt_percent(int *target, const char *msg) 315923c42c1SMike Galbraith { 316923c42c1SMike Galbraith int tmp = 0; 317923c42c1SMike Galbraith 318923c42c1SMike Galbraith prompt_integer(&tmp, msg); 319923c42c1SMike Galbraith if (tmp >= 0 && tmp <= 100) 320923c42c1SMike Galbraith *target = tmp; 321923c42c1SMike Galbraith } 322923c42c1SMike Galbraith 3231758af10SArnaldo Carvalho de Melo static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) 324923c42c1SMike Galbraith { 325923c42c1SMike Galbraith char *buf = malloc(0), *p; 3261758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; 327ab81f3fdSArnaldo Carvalho de Melo struct rb_node *next; 328923c42c1SMike Galbraith size_t dummy = 0; 329923c42c1SMike Galbraith 330923c42c1SMike Galbraith /* zero counters of active symbol */ 331923c42c1SMike Galbraith if (syme) { 332923c42c1SMike Galbraith __zero_source_counters(syme); 3331758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 334923c42c1SMike Galbraith } 335923c42c1SMike Galbraith 336923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 337923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 338923c42c1SMike Galbraith goto out_free; 339923c42c1SMike Galbraith 340923c42c1SMike Galbraith p = strchr(buf, '\n'); 341923c42c1SMike Galbraith if (p) 342923c42c1SMike Galbraith *p = 0; 343923c42c1SMike Galbraith 3441758af10SArnaldo Carvalho de Melo next = rb_first(&top->sym_evsel->hists.entries); 345ab81f3fdSArnaldo Carvalho de Melo while (next) { 346ab81f3fdSArnaldo Carvalho de Melo n = rb_entry(next, struct hist_entry, rb_node); 347ab81f3fdSArnaldo Carvalho de Melo if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { 348ab81f3fdSArnaldo Carvalho de Melo found = n; 349923c42c1SMike Galbraith break; 350923c42c1SMike Galbraith } 351ab81f3fdSArnaldo Carvalho de Melo next = rb_next(&n->rb_node); 352923c42c1SMike Galbraith } 353923c42c1SMike Galbraith 354923c42c1SMike Galbraith if (!found) { 35566aeb6d5SKirill Smelkov fprintf(stderr, "Sorry, %s is not active.\n", buf); 356923c42c1SMike Galbraith sleep(1); 357923c42c1SMike Galbraith } else 3581758af10SArnaldo Carvalho de Melo perf_top__parse_source(top, found); 359923c42c1SMike Galbraith 360923c42c1SMike Galbraith out_free: 361923c42c1SMike Galbraith free(buf); 362923c42c1SMike Galbraith } 363923c42c1SMike Galbraith 3641758af10SArnaldo Carvalho de Melo static void perf_top__print_mapped_keys(struct perf_top *top) 365923c42c1SMike Galbraith { 366091bd2e9SMike Galbraith char *name = NULL; 367091bd2e9SMike Galbraith 3681758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 3691758af10SArnaldo Carvalho de Melo struct symbol *sym = top->sym_filter_entry->ms.sym; 370091bd2e9SMike Galbraith name = sym->name; 371091bd2e9SMike Galbraith } 372091bd2e9SMike Galbraith 373091bd2e9SMike Galbraith fprintf(stdout, "\nMapped keys:\n"); 3741758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); 3751758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); 376091bd2e9SMike Galbraith 3771758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) 3781758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[E] active event counter. \t(%s)\n", event_name(top->sym_evsel)); 379091bd2e9SMike Galbraith 3801758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); 381091bd2e9SMike Galbraith 3821758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); 383091bd2e9SMike Galbraith fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); 384091bd2e9SMike Galbraith fprintf(stdout, "\t[S] stop annotation.\n"); 385091bd2e9SMike Galbraith 3868ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 3878ffcda17SArnaldo Carvalho de Melo "\t[K] hide kernel_symbols symbols. \t(%s)\n", 3881758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols ? "yes" : "no"); 3898ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 3908ffcda17SArnaldo Carvalho de Melo "\t[U] hide user symbols. \t(%s)\n", 3911758af10SArnaldo Carvalho de Melo top->hide_user_symbols ? "yes" : "no"); 3921758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); 393091bd2e9SMike Galbraith fprintf(stdout, "\t[qQ] quit.\n"); 394091bd2e9SMike Galbraith } 395091bd2e9SMike Galbraith 3961758af10SArnaldo Carvalho de Melo static int perf_top__key_mapped(struct perf_top *top, int c) 397091bd2e9SMike Galbraith { 398091bd2e9SMike Galbraith switch (c) { 399091bd2e9SMike Galbraith case 'd': 400091bd2e9SMike Galbraith case 'e': 401091bd2e9SMike Galbraith case 'f': 402091bd2e9SMike Galbraith case 'z': 403091bd2e9SMike Galbraith case 'q': 404091bd2e9SMike Galbraith case 'Q': 4058ffcda17SArnaldo Carvalho de Melo case 'K': 4068ffcda17SArnaldo Carvalho de Melo case 'U': 4076cff0e8dSKirill Smelkov case 'F': 4086cff0e8dSKirill Smelkov case 's': 4096cff0e8dSKirill Smelkov case 'S': 410091bd2e9SMike Galbraith return 1; 411091bd2e9SMike Galbraith case 'E': 4121758af10SArnaldo Carvalho de Melo return top->evlist->nr_entries > 1 ? 1 : 0; 41383a0944fSIngo Molnar default: 41483a0944fSIngo Molnar break; 415091bd2e9SMike Galbraith } 416091bd2e9SMike Galbraith 417091bd2e9SMike Galbraith return 0; 418923c42c1SMike Galbraith } 419923c42c1SMike Galbraith 4201758af10SArnaldo Carvalho de Melo static void perf_top__handle_keypress(struct perf_top *top, int c) 421923c42c1SMike Galbraith { 4221758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) { 423091bd2e9SMike Galbraith struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 424091bd2e9SMike Galbraith struct termios tc, save; 425091bd2e9SMike Galbraith 4261758af10SArnaldo Carvalho de Melo perf_top__print_mapped_keys(top); 427091bd2e9SMike Galbraith fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); 428091bd2e9SMike Galbraith fflush(stdout); 429091bd2e9SMike Galbraith 430091bd2e9SMike Galbraith tcgetattr(0, &save); 431091bd2e9SMike Galbraith tc = save; 432091bd2e9SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 433091bd2e9SMike Galbraith tc.c_cc[VMIN] = 0; 434091bd2e9SMike Galbraith tc.c_cc[VTIME] = 0; 435091bd2e9SMike Galbraith tcsetattr(0, TCSANOW, &tc); 436091bd2e9SMike Galbraith 437091bd2e9SMike Galbraith poll(&stdin_poll, 1, -1); 438091bd2e9SMike Galbraith c = getc(stdin); 439091bd2e9SMike Galbraith 440091bd2e9SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 4411758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) 442091bd2e9SMike Galbraith return; 443091bd2e9SMike Galbraith } 444091bd2e9SMike Galbraith 445923c42c1SMike Galbraith switch (c) { 446923c42c1SMike Galbraith case 'd': 4471758af10SArnaldo Carvalho de Melo prompt_integer(&top->delay_secs, "Enter display delay"); 4481758af10SArnaldo Carvalho de Melo if (top->delay_secs < 1) 4491758af10SArnaldo Carvalho de Melo top->delay_secs = 1; 450923c42c1SMike Galbraith break; 451923c42c1SMike Galbraith case 'e': 4521758af10SArnaldo Carvalho de Melo prompt_integer(&top->print_entries, "Enter display entries (lines)"); 4531758af10SArnaldo Carvalho de Melo if (top->print_entries == 0) { 4541758af10SArnaldo Carvalho de Melo struct sigaction act = { 4551758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 4561758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 4571758af10SArnaldo Carvalho de Melo }; 4581758af10SArnaldo Carvalho de Melo perf_top__sig_winch(SIGWINCH, NULL, top); 4591758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 460509605dbSStephane Eranian } else { 461509605dbSStephane Eranian perf_top__sig_winch(SIGWINCH, NULL, top); 4623b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, SIG_DFL); 463509605dbSStephane Eranian } 464923c42c1SMike Galbraith break; 465923c42c1SMike Galbraith case 'E': 4661758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) { 467ce2d17caSAkihiro Nagai /* Select 0 as the default event: */ 468ce2d17caSAkihiro Nagai int counter = 0; 469ce2d17caSAkihiro Nagai 470923c42c1SMike Galbraith fprintf(stderr, "\nAvailable events:"); 47169aad6f1SArnaldo Carvalho de Melo 4721758af10SArnaldo Carvalho de Melo list_for_each_entry(top->sym_evsel, &top->evlist->entries, node) 4731758af10SArnaldo Carvalho de Melo fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, event_name(top->sym_evsel)); 474923c42c1SMike Galbraith 475ec52d976SArnaldo Carvalho de Melo prompt_integer(&counter, "Enter details event counter"); 476923c42c1SMike Galbraith 4771758af10SArnaldo Carvalho de Melo if (counter >= top->evlist->nr_entries) { 4781758af10SArnaldo Carvalho de Melo top->sym_evsel = list_entry(top->evlist->entries.next, struct perf_evsel, node); 4791758af10SArnaldo Carvalho de Melo fprintf(stderr, "Sorry, no such event, using %s.\n", event_name(top->sym_evsel)); 480923c42c1SMike Galbraith sleep(1); 48169aad6f1SArnaldo Carvalho de Melo break; 482923c42c1SMike Galbraith } 4831758af10SArnaldo Carvalho de Melo list_for_each_entry(top->sym_evsel, &top->evlist->entries, node) 4841758af10SArnaldo Carvalho de Melo if (top->sym_evsel->idx == counter) 48569aad6f1SArnaldo Carvalho de Melo break; 486ec52d976SArnaldo Carvalho de Melo } else 4871758af10SArnaldo Carvalho de Melo top->sym_evsel = list_entry(top->evlist->entries.next, struct perf_evsel, node); 488923c42c1SMike Galbraith break; 489923c42c1SMike Galbraith case 'f': 4901758af10SArnaldo Carvalho de Melo prompt_integer(&top->count_filter, "Enter display event count filter"); 491923c42c1SMike Galbraith break; 492923c42c1SMike Galbraith case 'F': 4931758af10SArnaldo Carvalho de Melo prompt_percent(&top->sym_pcnt_filter, 4941758af10SArnaldo Carvalho de Melo "Enter details display event filter (percent)"); 495923c42c1SMike Galbraith break; 4968ffcda17SArnaldo Carvalho de Melo case 'K': 4971758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols = !top->hide_kernel_symbols; 4988ffcda17SArnaldo Carvalho de Melo break; 499923c42c1SMike Galbraith case 'q': 500923c42c1SMike Galbraith case 'Q': 501923c42c1SMike Galbraith printf("exiting.\n"); 5021758af10SArnaldo Carvalho de Melo if (top->dump_symtab) 5031758af10SArnaldo Carvalho de Melo perf_session__fprintf_dsos(top->session, stderr); 504923c42c1SMike Galbraith exit(0); 505923c42c1SMike Galbraith case 's': 5061758af10SArnaldo Carvalho de Melo perf_top__prompt_symbol(top, "Enter details symbol"); 507923c42c1SMike Galbraith break; 508923c42c1SMike Galbraith case 'S': 5091758af10SArnaldo Carvalho de Melo if (!top->sym_filter_entry) 510923c42c1SMike Galbraith break; 511923c42c1SMike Galbraith else { 5121758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry; 513923c42c1SMike Galbraith 5141758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 515923c42c1SMike Galbraith __zero_source_counters(syme); 516923c42c1SMike Galbraith } 517923c42c1SMike Galbraith break; 5188ffcda17SArnaldo Carvalho de Melo case 'U': 5191758af10SArnaldo Carvalho de Melo top->hide_user_symbols = !top->hide_user_symbols; 5208ffcda17SArnaldo Carvalho de Melo break; 521923c42c1SMike Galbraith case 'z': 5221758af10SArnaldo Carvalho de Melo top->zero = !top->zero; 523923c42c1SMike Galbraith break; 52483a0944fSIngo Molnar default: 52583a0944fSIngo Molnar break; 526923c42c1SMike Galbraith } 527923c42c1SMike Galbraith } 528923c42c1SMike Galbraith 529ab81f3fdSArnaldo Carvalho de Melo static void perf_top__sort_new_samples(void *arg) 530ab81f3fdSArnaldo Carvalho de Melo { 531ab81f3fdSArnaldo Carvalho de Melo struct perf_top *t = arg; 532ab81f3fdSArnaldo Carvalho de Melo perf_top__reset_sample_counters(t); 533ab81f3fdSArnaldo Carvalho de Melo 534ab81f3fdSArnaldo Carvalho de Melo if (t->evlist->selected != NULL) 535ab81f3fdSArnaldo Carvalho de Melo t->sym_evsel = t->evlist->selected; 536ab81f3fdSArnaldo Carvalho de Melo 537ab81f3fdSArnaldo Carvalho de Melo hists__collapse_resort_threaded(&t->sym_evsel->hists); 538ab81f3fdSArnaldo Carvalho de Melo hists__output_resort_threaded(&t->sym_evsel->hists); 539b079d4e9SArnaldo Carvalho de Melo hists__decay_entries_threaded(&t->sym_evsel->hists, 5401758af10SArnaldo Carvalho de Melo t->hide_user_symbols, 5411758af10SArnaldo Carvalho de Melo t->hide_kernel_symbols); 542ab81f3fdSArnaldo Carvalho de Melo } 543ab81f3fdSArnaldo Carvalho de Melo 5441758af10SArnaldo Carvalho de Melo static void *display_thread_tui(void *arg) 545c0443df1SArnaldo Carvalho de Melo { 5460d37aa34SArnaldo Carvalho de Melo struct perf_evsel *pos; 5471758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 548ab81f3fdSArnaldo Carvalho de Melo const char *help = "For a higher level overview, try: perf top --sort comm,dso"; 549ab81f3fdSArnaldo Carvalho de Melo 5501758af10SArnaldo Carvalho de Melo perf_top__sort_new_samples(top); 5510d37aa34SArnaldo Carvalho de Melo 5520d37aa34SArnaldo Carvalho de Melo /* 5530d37aa34SArnaldo Carvalho de Melo * Initialize the uid_filter_str, in the future the TUI will allow 5540d37aa34SArnaldo Carvalho de Melo * Zooming in/out UIDs. For now juse use whatever the user passed 5550d37aa34SArnaldo Carvalho de Melo * via --uid. 5560d37aa34SArnaldo Carvalho de Melo */ 5570d37aa34SArnaldo Carvalho de Melo list_for_each_entry(pos, &top->evlist->entries, node) 5580d37aa34SArnaldo Carvalho de Melo pos->hists.uid_filter_str = top->uid_str; 5590d37aa34SArnaldo Carvalho de Melo 5601758af10SArnaldo Carvalho de Melo perf_evlist__tui_browse_hists(top->evlist, help, 561ab81f3fdSArnaldo Carvalho de Melo perf_top__sort_new_samples, 5621758af10SArnaldo Carvalho de Melo top, top->delay_secs); 563ab81f3fdSArnaldo Carvalho de Melo 564c0443df1SArnaldo Carvalho de Melo exit_browser(0); 565c0443df1SArnaldo Carvalho de Melo exit(0); 566c0443df1SArnaldo Carvalho de Melo return NULL; 567c0443df1SArnaldo Carvalho de Melo } 568c0443df1SArnaldo Carvalho de Melo 5691758af10SArnaldo Carvalho de Melo static void *display_thread(void *arg) 57086470930SIngo Molnar { 57186470930SIngo Molnar struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 572923c42c1SMike Galbraith struct termios tc, save; 5731758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 574923c42c1SMike Galbraith int delay_msecs, c; 57586470930SIngo Molnar 576923c42c1SMike Galbraith tcgetattr(0, &save); 577923c42c1SMike Galbraith tc = save; 578923c42c1SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 579923c42c1SMike Galbraith tc.c_cc[VMIN] = 0; 580923c42c1SMike Galbraith tc.c_cc[VTIME] = 0; 581091bd2e9SMike Galbraith 5823af6e338SArnaldo Carvalho de Melo pthread__unblock_sigwinch(); 583923c42c1SMike Galbraith repeat: 5841758af10SArnaldo Carvalho de Melo delay_msecs = top->delay_secs * 1000; 585923c42c1SMike Galbraith tcsetattr(0, TCSANOW, &tc); 586923c42c1SMike Galbraith /* trash return*/ 587923c42c1SMike Galbraith getc(stdin); 58886470930SIngo Molnar 5893af6e338SArnaldo Carvalho de Melo while (1) { 5901758af10SArnaldo Carvalho de Melo perf_top__print_sym_table(top); 5913af6e338SArnaldo Carvalho de Melo /* 5923af6e338SArnaldo Carvalho de Melo * Either timeout expired or we got an EINTR due to SIGWINCH, 5933af6e338SArnaldo Carvalho de Melo * refresh screen in both cases. 5943af6e338SArnaldo Carvalho de Melo */ 5953af6e338SArnaldo Carvalho de Melo switch (poll(&stdin_poll, 1, delay_msecs)) { 5963af6e338SArnaldo Carvalho de Melo case 0: 5973af6e338SArnaldo Carvalho de Melo continue; 5983af6e338SArnaldo Carvalho de Melo case -1: 5993af6e338SArnaldo Carvalho de Melo if (errno == EINTR) 6003af6e338SArnaldo Carvalho de Melo continue; 6013af6e338SArnaldo Carvalho de Melo /* Fall trhu */ 6023af6e338SArnaldo Carvalho de Melo default: 6033af6e338SArnaldo Carvalho de Melo goto process_hotkey; 6043af6e338SArnaldo Carvalho de Melo } 6053af6e338SArnaldo Carvalho de Melo } 6063af6e338SArnaldo Carvalho de Melo process_hotkey: 607923c42c1SMike Galbraith c = getc(stdin); 608923c42c1SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 609923c42c1SMike Galbraith 6101758af10SArnaldo Carvalho de Melo perf_top__handle_keypress(top, c); 611923c42c1SMike Galbraith goto repeat; 61286470930SIngo Molnar 61386470930SIngo Molnar return NULL; 61486470930SIngo Molnar } 61586470930SIngo Molnar 6162ab52083SAnton Blanchard /* Tag samples to be skipped. */ 617f37a291cSIngo Molnar static const char *skip_symbols[] = { 6182ab52083SAnton Blanchard "default_idle", 619b0e8572fSArnaldo Carvalho de Melo "native_safe_halt", 6202ab52083SAnton Blanchard "cpu_idle", 6212ab52083SAnton Blanchard "enter_idle", 6222ab52083SAnton Blanchard "exit_idle", 6232ab52083SAnton Blanchard "mwait_idle", 62459b90056SArnaldo Carvalho de Melo "mwait_idle_with_hints", 6258357275bSArnaldo Carvalho de Melo "poll_idle", 6263a3393efSAnton Blanchard "ppc64_runlatch_off", 6273a3393efSAnton Blanchard "pseries_dedicated_idle_sleep", 6282ab52083SAnton Blanchard NULL 6292ab52083SAnton Blanchard }; 6302ab52083SAnton Blanchard 631ab81f3fdSArnaldo Carvalho de Melo static int symbol_filter(struct map *map __used, struct symbol *sym) 63286470930SIngo Molnar { 63386470930SIngo Molnar const char *name = sym->name; 6342ab52083SAnton Blanchard int i; 63586470930SIngo Molnar 6363a3393efSAnton Blanchard /* 6373a3393efSAnton Blanchard * ppc64 uses function descriptors and appends a '.' to the 6383a3393efSAnton Blanchard * start of every instruction address. Remove it. 6393a3393efSAnton Blanchard */ 6403a3393efSAnton Blanchard if (name[0] == '.') 6413a3393efSAnton Blanchard name++; 6423a3393efSAnton Blanchard 64386470930SIngo Molnar if (!strcmp(name, "_text") || 64486470930SIngo Molnar !strcmp(name, "_etext") || 64586470930SIngo Molnar !strcmp(name, "_sinittext") || 64686470930SIngo Molnar !strncmp("init_module", name, 11) || 64786470930SIngo Molnar !strncmp("cleanup_module", name, 14) || 64886470930SIngo Molnar strstr(name, "_text_start") || 64986470930SIngo Molnar strstr(name, "_text_end")) 65086470930SIngo Molnar return 1; 65186470930SIngo Molnar 6522ab52083SAnton Blanchard for (i = 0; skip_symbols[i]; i++) { 6532ab52083SAnton Blanchard if (!strcmp(skip_symbols[i], name)) { 654171b3be9SArnaldo Carvalho de Melo sym->ignore = true; 6552ab52083SAnton Blanchard break; 6562ab52083SAnton Blanchard } 6572ab52083SAnton Blanchard } 65886470930SIngo Molnar 65986470930SIngo Molnar return 0; 66086470930SIngo Molnar } 66186470930SIngo Molnar 6621758af10SArnaldo Carvalho de Melo static void perf_event__process_sample(struct perf_tool *tool, 6631758af10SArnaldo Carvalho de Melo const union perf_event *event, 6647b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel, 6658d50e5b4SArnaldo Carvalho de Melo struct perf_sample *sample, 666743eb868SArnaldo Carvalho de Melo struct machine *machine) 66786470930SIngo Molnar { 6681758af10SArnaldo Carvalho de Melo struct perf_top *top = container_of(tool, struct perf_top, tool); 66919d4ac3cSArnaldo Carvalho de Melo struct symbol *parent = NULL; 6708115d60cSArnaldo Carvalho de Melo u64 ip = event->ip.ip; 6711ed091c4SArnaldo Carvalho de Melo struct addr_location al; 67219d4ac3cSArnaldo Carvalho de Melo int err; 6735b2bb75aSArnaldo Carvalho de Melo 67423346f21SArnaldo Carvalho de Melo if (!machine && perf_guest) { 675a1645ce1SZhang, Yanmin pr_err("Can't find guest [%d]'s kernel information\n", 6768115d60cSArnaldo Carvalho de Melo event->ip.pid); 677a1645ce1SZhang, Yanmin return; 678a1645ce1SZhang, Yanmin } 679a1645ce1SZhang, Yanmin 6800c095715SJoerg Roedel if (!machine) { 6810c095715SJoerg Roedel pr_err("%u unprocessable samples recorded.", 6820c095715SJoerg Roedel top->session->hists.stats.nr_unprocessable_samples++); 6830c095715SJoerg Roedel return; 6840c095715SJoerg Roedel } 6850c095715SJoerg Roedel 6868115d60cSArnaldo Carvalho de Melo if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) 6871758af10SArnaldo Carvalho de Melo top->exact_samples++; 6881676b8a0SPeter Zijlstra 689743eb868SArnaldo Carvalho de Melo if (perf_event__preprocess_sample(event, machine, &al, sample, 69041a37e20SArnaldo Carvalho de Melo symbol_filter) < 0 || 69172b8fa17SArnaldo Carvalho de Melo al.filtered) 6921ed091c4SArnaldo Carvalho de Melo return; 69386470930SIngo Molnar 6941758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && 6955f6f5580SArnaldo Carvalho de Melo symbol_conf.kptr_restrict && 6965f6f5580SArnaldo Carvalho de Melo al.cpumode == PERF_RECORD_MISC_KERNEL) { 6975f6f5580SArnaldo Carvalho de Melo ui__warning( 6985f6f5580SArnaldo Carvalho de Melo "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" 6995f6f5580SArnaldo Carvalho de Melo "Check /proc/sys/kernel/kptr_restrict.\n\n" 7005f6f5580SArnaldo Carvalho de Melo "Kernel%s samples will not be resolved.\n", 7015f6f5580SArnaldo Carvalho de Melo !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? 7025f6f5580SArnaldo Carvalho de Melo " modules" : ""); 7035f6f5580SArnaldo Carvalho de Melo if (use_browser <= 0) 7045f6f5580SArnaldo Carvalho de Melo sleep(5); 7051758af10SArnaldo Carvalho de Melo top->kptr_restrict_warned = true; 7065f6f5580SArnaldo Carvalho de Melo } 7075f6f5580SArnaldo Carvalho de Melo 70872b8fa17SArnaldo Carvalho de Melo if (al.sym == NULL) { 709e4a338d0SArnaldo Carvalho de Melo const char *msg = "Kernel samples will not be resolved.\n"; 71072b8fa17SArnaldo Carvalho de Melo /* 71172b8fa17SArnaldo Carvalho de Melo * As we do lazy loading of symtabs we only will know if the 71272b8fa17SArnaldo Carvalho de Melo * specified vmlinux file is invalid when we actually have a 71372b8fa17SArnaldo Carvalho de Melo * hit in kernel space and then try to load it. So if we get 71472b8fa17SArnaldo Carvalho de Melo * here and there are _no_ symbols in the DSO backing the 71572b8fa17SArnaldo Carvalho de Melo * kernel map, bail out. 71672b8fa17SArnaldo Carvalho de Melo * 71772b8fa17SArnaldo Carvalho de Melo * We may never get here, for instance, if we use -K/ 71872b8fa17SArnaldo Carvalho de Melo * --hide-kernel-symbols, even if the user specifies an 71972b8fa17SArnaldo Carvalho de Melo * invalid --vmlinux ;-) 72072b8fa17SArnaldo Carvalho de Melo */ 7211758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && !top->vmlinux_warned && 722e4a338d0SArnaldo Carvalho de Melo al.map == machine->vmlinux_maps[MAP__FUNCTION] && 72372b8fa17SArnaldo Carvalho de Melo RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { 724e4a338d0SArnaldo Carvalho de Melo if (symbol_conf.vmlinux_name) { 725e4a338d0SArnaldo Carvalho de Melo ui__warning("The %s file can't be used.\n%s", 726e4a338d0SArnaldo Carvalho de Melo symbol_conf.vmlinux_name, msg); 727e4a338d0SArnaldo Carvalho de Melo } else { 728e4a338d0SArnaldo Carvalho de Melo ui__warning("A vmlinux file was not found.\n%s", 729e4a338d0SArnaldo Carvalho de Melo msg); 730e4a338d0SArnaldo Carvalho de Melo } 731e4a338d0SArnaldo Carvalho de Melo 732e4a338d0SArnaldo Carvalho de Melo if (use_browser <= 0) 733e4a338d0SArnaldo Carvalho de Melo sleep(5); 7341758af10SArnaldo Carvalho de Melo top->vmlinux_warned = true; 73572b8fa17SArnaldo Carvalho de Melo } 73672b8fa17SArnaldo Carvalho de Melo } 73772b8fa17SArnaldo Carvalho de Melo 738ab81f3fdSArnaldo Carvalho de Melo if (al.sym == NULL || !al.sym->ignore) { 739ab81f3fdSArnaldo Carvalho de Melo struct hist_entry *he; 74070db7533SArnaldo Carvalho de Melo 74119d4ac3cSArnaldo Carvalho de Melo if ((sort__has_parent || symbol_conf.use_callchain) && 74219d4ac3cSArnaldo Carvalho de Melo sample->callchain) { 743743eb868SArnaldo Carvalho de Melo err = machine__resolve_callchain(machine, evsel, al.thread, 74419d4ac3cSArnaldo Carvalho de Melo sample->callchain, &parent); 74519d4ac3cSArnaldo Carvalho de Melo if (err) 74619d4ac3cSArnaldo Carvalho de Melo return; 74719d4ac3cSArnaldo Carvalho de Melo } 74819d4ac3cSArnaldo Carvalho de Melo 749743eb868SArnaldo Carvalho de Melo he = perf_evsel__add_hist_entry(evsel, &al, sample); 750ab81f3fdSArnaldo Carvalho de Melo if (he == NULL) { 751ab81f3fdSArnaldo Carvalho de Melo pr_err("Problem incrementing symbol period, skipping event\n"); 752ab81f3fdSArnaldo Carvalho de Melo return; 7535807806aSArnaldo Carvalho de Melo } 754ab81f3fdSArnaldo Carvalho de Melo 75519d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) { 756246d4ce8SArnaldo Carvalho de Melo err = callchain_append(he->callchain, &evsel->hists.callchain_cursor, 75719d4ac3cSArnaldo Carvalho de Melo sample->period); 75819d4ac3cSArnaldo Carvalho de Melo if (err) 75919d4ac3cSArnaldo Carvalho de Melo return; 76019d4ac3cSArnaldo Carvalho de Melo } 76119d4ac3cSArnaldo Carvalho de Melo 7621758af10SArnaldo Carvalho de Melo if (top->sort_has_symbols) 7631758af10SArnaldo Carvalho de Melo perf_top__record_precise_ip(top, he, evsel->idx, ip); 7645807806aSArnaldo Carvalho de Melo } 765ab81f3fdSArnaldo Carvalho de Melo 766ab81f3fdSArnaldo Carvalho de Melo return; 76786470930SIngo Molnar } 76886470930SIngo Molnar 7691758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read_idx(struct perf_top *top, int idx) 77086470930SIngo Molnar { 7718d50e5b4SArnaldo Carvalho de Melo struct perf_sample sample; 7727b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel; 7731758af10SArnaldo Carvalho de Melo struct perf_session *session = top->session; 7748115d60cSArnaldo Carvalho de Melo union perf_event *event; 775743eb868SArnaldo Carvalho de Melo struct machine *machine; 776743eb868SArnaldo Carvalho de Melo u8 origin; 7775538becaSFrederic Weisbecker int ret; 77886470930SIngo Molnar 7791758af10SArnaldo Carvalho de Melo while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { 7801758af10SArnaldo Carvalho de Melo ret = perf_session__parse_sample(session, event, &sample); 7815538becaSFrederic Weisbecker if (ret) { 7825538becaSFrederic Weisbecker pr_err("Can't parse sample, err = %d\n", ret); 7835538becaSFrederic Weisbecker continue; 7845538becaSFrederic Weisbecker } 78504391debSArnaldo Carvalho de Melo 7861758af10SArnaldo Carvalho de Melo evsel = perf_evlist__id2evsel(session->evlist, sample.id); 7877b27509fSArnaldo Carvalho de Melo assert(evsel != NULL); 7887b27509fSArnaldo Carvalho de Melo 789743eb868SArnaldo Carvalho de Melo origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 790743eb868SArnaldo Carvalho de Melo 7915b2bb75aSArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) 7921758af10SArnaldo Carvalho de Melo ++top->samples; 793743eb868SArnaldo Carvalho de Melo 794743eb868SArnaldo Carvalho de Melo switch (origin) { 795743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_USER: 7961758af10SArnaldo Carvalho de Melo ++top->us_samples; 7971758af10SArnaldo Carvalho de Melo if (top->hide_user_symbols) 798743eb868SArnaldo Carvalho de Melo continue; 7991758af10SArnaldo Carvalho de Melo machine = perf_session__find_host_machine(session); 800743eb868SArnaldo Carvalho de Melo break; 801743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_KERNEL: 8021758af10SArnaldo Carvalho de Melo ++top->kernel_samples; 8031758af10SArnaldo Carvalho de Melo if (top->hide_kernel_symbols) 804743eb868SArnaldo Carvalho de Melo continue; 8051758af10SArnaldo Carvalho de Melo machine = perf_session__find_host_machine(session); 806743eb868SArnaldo Carvalho de Melo break; 807743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_KERNEL: 8081758af10SArnaldo Carvalho de Melo ++top->guest_kernel_samples; 8091758af10SArnaldo Carvalho de Melo machine = perf_session__find_machine(session, event->ip.pid); 810743eb868SArnaldo Carvalho de Melo break; 811743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_USER: 8121758af10SArnaldo Carvalho de Melo ++top->guest_us_samples; 813743eb868SArnaldo Carvalho de Melo /* 814743eb868SArnaldo Carvalho de Melo * TODO: we don't process guest user from host side 815743eb868SArnaldo Carvalho de Melo * except simple counting. 816743eb868SArnaldo Carvalho de Melo */ 817743eb868SArnaldo Carvalho de Melo /* Fall thru */ 818743eb868SArnaldo Carvalho de Melo default: 819743eb868SArnaldo Carvalho de Melo continue; 820743eb868SArnaldo Carvalho de Melo } 821743eb868SArnaldo Carvalho de Melo 822743eb868SArnaldo Carvalho de Melo 8231758af10SArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) { 8241758af10SArnaldo Carvalho de Melo perf_event__process_sample(&top->tool, event, evsel, 8251758af10SArnaldo Carvalho de Melo &sample, machine); 8261758af10SArnaldo Carvalho de Melo } else if (event->header.type < PERF_RECORD_MAX) { 8277b27509fSArnaldo Carvalho de Melo hists__inc_nr_events(&evsel->hists, event->header.type); 8281758af10SArnaldo Carvalho de Melo perf_event__process(&top->tool, event, &sample, machine); 8297b27509fSArnaldo Carvalho de Melo } else 8301758af10SArnaldo Carvalho de Melo ++session->hists.stats.nr_unknown_events; 83186470930SIngo Molnar } 83286470930SIngo Molnar } 83386470930SIngo Molnar 8341758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read(struct perf_top *top) 8352f01190aSFrederic Weisbecker { 83670db7533SArnaldo Carvalho de Melo int i; 8372f01190aSFrederic Weisbecker 8381758af10SArnaldo Carvalho de Melo for (i = 0; i < top->evlist->nr_mmaps; i++) 8391758af10SArnaldo Carvalho de Melo perf_top__mmap_read_idx(top, i); 8402f01190aSFrederic Weisbecker } 8412f01190aSFrederic Weisbecker 8421758af10SArnaldo Carvalho de Melo static void perf_top__start_counters(struct perf_top *top) 84372cb7013SArnaldo Carvalho de Melo { 844727ab04eSArnaldo Carvalho de Melo struct perf_evsel *counter, *first; 8451758af10SArnaldo Carvalho de Melo struct perf_evlist *evlist = top->evlist; 846727ab04eSArnaldo Carvalho de Melo 847727ab04eSArnaldo Carvalho de Melo first = list_entry(evlist->entries.next, struct perf_evsel, node); 84872cb7013SArnaldo Carvalho de Melo 84972cb7013SArnaldo Carvalho de Melo list_for_each_entry(counter, &evlist->entries, node) { 85072cb7013SArnaldo Carvalho de Melo struct perf_event_attr *attr = &counter->attr; 851727ab04eSArnaldo Carvalho de Melo struct xyarray *group_fd = NULL; 852727ab04eSArnaldo Carvalho de Melo 8531758af10SArnaldo Carvalho de Melo if (top->group && counter != first) 854727ab04eSArnaldo Carvalho de Melo group_fd = first->fd; 85572cb7013SArnaldo Carvalho de Melo 85672cb7013SArnaldo Carvalho de Melo attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID; 85772cb7013SArnaldo Carvalho de Melo 8581758af10SArnaldo Carvalho de Melo if (top->freq) { 85972cb7013SArnaldo Carvalho de Melo attr->sample_type |= PERF_SAMPLE_PERIOD; 86072cb7013SArnaldo Carvalho de Melo attr->freq = 1; 8611758af10SArnaldo Carvalho de Melo attr->sample_freq = top->freq; 86272cb7013SArnaldo Carvalho de Melo } 86372cb7013SArnaldo Carvalho de Melo 86470db7533SArnaldo Carvalho de Melo if (evlist->nr_entries > 1) { 86570db7533SArnaldo Carvalho de Melo attr->sample_type |= PERF_SAMPLE_ID; 86670db7533SArnaldo Carvalho de Melo attr->read_format |= PERF_FORMAT_ID; 86770db7533SArnaldo Carvalho de Melo } 86870db7533SArnaldo Carvalho de Melo 86919d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) 87019d4ac3cSArnaldo Carvalho de Melo attr->sample_type |= PERF_SAMPLE_CALLCHAIN; 87119d4ac3cSArnaldo Carvalho de Melo 87272cb7013SArnaldo Carvalho de Melo attr->mmap = 1; 873ab81f3fdSArnaldo Carvalho de Melo attr->comm = 1; 8741758af10SArnaldo Carvalho de Melo attr->inherit = top->inherit; 8750c978128SArnaldo Carvalho de Melo fallback_missing_features: 8760c978128SArnaldo Carvalho de Melo if (top->exclude_guest_missing) 8770c978128SArnaldo Carvalho de Melo attr->exclude_guest = attr->exclude_host = 0; 8787b27509fSArnaldo Carvalho de Melo retry_sample_id: 879808e1226SArnaldo Carvalho de Melo attr->sample_id_all = top->sample_id_all_missing ? 0 : 1; 88072cb7013SArnaldo Carvalho de Melo try_again: 8811758af10SArnaldo Carvalho de Melo if (perf_evsel__open(counter, top->evlist->cpus, 8821758af10SArnaldo Carvalho de Melo top->evlist->threads, top->group, 883727ab04eSArnaldo Carvalho de Melo group_fd) < 0) { 88472cb7013SArnaldo Carvalho de Melo int err = errno; 88572cb7013SArnaldo Carvalho de Melo 886c286c419SArnaldo Carvalho de Melo if (err == EPERM || err == EACCES) { 887b8631e6eSArnaldo Carvalho de Melo ui__error_paranoid(); 888c286c419SArnaldo Carvalho de Melo goto out_err; 8890c978128SArnaldo Carvalho de Melo } else if (err == EINVAL) { 8900c978128SArnaldo Carvalho de Melo if (!top->exclude_guest_missing && 8910c978128SArnaldo Carvalho de Melo (attr->exclude_guest || attr->exclude_host)) { 8920c978128SArnaldo Carvalho de Melo pr_debug("Old kernel, cannot exclude " 8930c978128SArnaldo Carvalho de Melo "guest or host samples.\n"); 8940c978128SArnaldo Carvalho de Melo top->exclude_guest_missing = true; 8950c978128SArnaldo Carvalho de Melo goto fallback_missing_features; 896808e1226SArnaldo Carvalho de Melo } else if (!top->sample_id_all_missing) { 8977b27509fSArnaldo Carvalho de Melo /* 8987b27509fSArnaldo Carvalho de Melo * Old kernel, no attr->sample_id_type_all field 8997b27509fSArnaldo Carvalho de Melo */ 900808e1226SArnaldo Carvalho de Melo top->sample_id_all_missing = true; 9017b27509fSArnaldo Carvalho de Melo goto retry_sample_id; 902c286c419SArnaldo Carvalho de Melo } 9030c978128SArnaldo Carvalho de Melo } 90472cb7013SArnaldo Carvalho de Melo /* 90572cb7013SArnaldo Carvalho de Melo * If it's cycles then fall back to hrtimer 90672cb7013SArnaldo Carvalho de Melo * based cpu-clock-tick sw counter, which 90772cb7013SArnaldo Carvalho de Melo * is always available even if no PMU support: 90872cb7013SArnaldo Carvalho de Melo */ 90972cb7013SArnaldo Carvalho de Melo if (attr->type == PERF_TYPE_HARDWARE && 91072cb7013SArnaldo Carvalho de Melo attr->config == PERF_COUNT_HW_CPU_CYCLES) { 91172cb7013SArnaldo Carvalho de Melo if (verbose) 912c286c419SArnaldo Carvalho de Melo ui__warning("Cycles event not supported,\n" 913c286c419SArnaldo Carvalho de Melo "trying to fall back to cpu-clock-ticks\n"); 91472cb7013SArnaldo Carvalho de Melo 91572cb7013SArnaldo Carvalho de Melo attr->type = PERF_TYPE_SOFTWARE; 91672cb7013SArnaldo Carvalho de Melo attr->config = PERF_COUNT_SW_CPU_CLOCK; 91772cb7013SArnaldo Carvalho de Melo goto try_again; 91872cb7013SArnaldo Carvalho de Melo } 919c286c419SArnaldo Carvalho de Melo 920ca6a4258SDavid Ahern if (err == ENOENT) { 921ca6a4258SDavid Ahern ui__warning("The %s event is not supported.\n", 922ca6a4258SDavid Ahern event_name(counter)); 923ca6a4258SDavid Ahern goto out_err; 924cdce4459SNamhyung Kim } else if (err == EMFILE) { 925cdce4459SNamhyung Kim ui__warning("Too many events are opened.\n" 926cdce4459SNamhyung Kim "Try again after reducing the number of events\n"); 927cdce4459SNamhyung Kim goto out_err; 928ca6a4258SDavid Ahern } 929ca6a4258SDavid Ahern 930c286c419SArnaldo Carvalho de Melo ui__warning("The sys_perf_event_open() syscall " 931c286c419SArnaldo Carvalho de Melo "returned with %d (%s). /bin/dmesg " 932c286c419SArnaldo Carvalho de Melo "may provide additional information.\n" 933c286c419SArnaldo Carvalho de Melo "No CONFIG_PERF_EVENTS=y kernel support " 934c286c419SArnaldo Carvalho de Melo "configured?\n", err, strerror(err)); 935c286c419SArnaldo Carvalho de Melo goto out_err; 93672cb7013SArnaldo Carvalho de Melo } 93772cb7013SArnaldo Carvalho de Melo } 93870db7533SArnaldo Carvalho de Melo 9391758af10SArnaldo Carvalho de Melo if (perf_evlist__mmap(evlist, top->mmap_pages, false) < 0) { 940c286c419SArnaldo Carvalho de Melo ui__warning("Failed to mmap with %d (%s)\n", 941c286c419SArnaldo Carvalho de Melo errno, strerror(errno)); 942c286c419SArnaldo Carvalho de Melo goto out_err; 943c286c419SArnaldo Carvalho de Melo } 944c286c419SArnaldo Carvalho de Melo 945c286c419SArnaldo Carvalho de Melo return; 946c286c419SArnaldo Carvalho de Melo 947c286c419SArnaldo Carvalho de Melo out_err: 948c286c419SArnaldo Carvalho de Melo exit_browser(0); 949c286c419SArnaldo Carvalho de Melo exit(0); 95072cb7013SArnaldo Carvalho de Melo } 95172cb7013SArnaldo Carvalho de Melo 9521758af10SArnaldo Carvalho de Melo static int perf_top__setup_sample_type(struct perf_top *top) 95319d4ac3cSArnaldo Carvalho de Melo { 9541758af10SArnaldo Carvalho de Melo if (!top->sort_has_symbols) { 95519d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) { 95619d4ac3cSArnaldo Carvalho de Melo ui__warning("Selected -g but \"sym\" not present in --sort/-s."); 95719d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 95819d4ac3cSArnaldo Carvalho de Melo } 9591758af10SArnaldo Carvalho de Melo } else if (!top->dont_use_callchains && callchain_param.mode != CHAIN_NONE) { 96019d4ac3cSArnaldo Carvalho de Melo if (callchain_register_param(&callchain_param) < 0) { 96119d4ac3cSArnaldo Carvalho de Melo ui__warning("Can't register callchain params.\n"); 96219d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 96319d4ac3cSArnaldo Carvalho de Melo } 96419d4ac3cSArnaldo Carvalho de Melo } 96519d4ac3cSArnaldo Carvalho de Melo 96619d4ac3cSArnaldo Carvalho de Melo return 0; 96719d4ac3cSArnaldo Carvalho de Melo } 96819d4ac3cSArnaldo Carvalho de Melo 9691758af10SArnaldo Carvalho de Melo static int __cmd_top(struct perf_top *top) 970716c69feSIngo Molnar { 971716c69feSIngo Molnar pthread_t thread; 97219d4ac3cSArnaldo Carvalho de Melo int ret; 973d8f66248SArnaldo Carvalho de Melo /* 974b3165f41SArnaldo Carvalho de Melo * FIXME: perf_session__new should allow passing a O_MMAP, so that all this 975b3165f41SArnaldo Carvalho de Melo * mmap reading, etc is encapsulated in it. Use O_WRONLY for now. 976d8f66248SArnaldo Carvalho de Melo */ 9771758af10SArnaldo Carvalho de Melo top->session = perf_session__new(NULL, O_WRONLY, false, false, NULL); 9781758af10SArnaldo Carvalho de Melo if (top->session == NULL) 979b3165f41SArnaldo Carvalho de Melo return -ENOMEM; 980716c69feSIngo Molnar 9811758af10SArnaldo Carvalho de Melo ret = perf_top__setup_sample_type(top); 98219d4ac3cSArnaldo Carvalho de Melo if (ret) 98319d4ac3cSArnaldo Carvalho de Melo goto out_delete; 98419d4ac3cSArnaldo Carvalho de Melo 985b52956c9SDavid Ahern if (top->target_tid || top->uid != UINT_MAX) 9861758af10SArnaldo Carvalho de Melo perf_event__synthesize_thread_map(&top->tool, top->evlist->threads, 987743eb868SArnaldo Carvalho de Melo perf_event__process, 9881758af10SArnaldo Carvalho de Melo &top->session->host_machine); 9895b2bb75aSArnaldo Carvalho de Melo else 9901758af10SArnaldo Carvalho de Melo perf_event__synthesize_threads(&top->tool, perf_event__process, 9911758af10SArnaldo Carvalho de Melo &top->session->host_machine); 9921758af10SArnaldo Carvalho de Melo perf_top__start_counters(top); 9931758af10SArnaldo Carvalho de Melo top->session->evlist = top->evlist; 9941758af10SArnaldo Carvalho de Melo perf_session__update_sample_type(top->session); 99586470930SIngo Molnar 9962f01190aSFrederic Weisbecker /* Wait for a minimal set of events before starting the snapshot */ 9971758af10SArnaldo Carvalho de Melo poll(top->evlist->pollfd, top->evlist->nr_fds, 100); 9982f01190aSFrederic Weisbecker 9991758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 10002f01190aSFrederic Weisbecker 1001c0443df1SArnaldo Carvalho de Melo if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : 10021758af10SArnaldo Carvalho de Melo display_thread), top)) { 100386470930SIngo Molnar printf("Could not create display thread.\n"); 100486470930SIngo Molnar exit(-1); 100586470930SIngo Molnar } 100686470930SIngo Molnar 10071758af10SArnaldo Carvalho de Melo if (top->realtime_prio) { 100886470930SIngo Molnar struct sched_param param; 100986470930SIngo Molnar 10101758af10SArnaldo Carvalho de Melo param.sched_priority = top->realtime_prio; 101186470930SIngo Molnar if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { 101286470930SIngo Molnar printf("Could not set realtime priority.\n"); 101386470930SIngo Molnar exit(-1); 101486470930SIngo Molnar } 101586470930SIngo Molnar } 101686470930SIngo Molnar 101786470930SIngo Molnar while (1) { 10181758af10SArnaldo Carvalho de Melo u64 hits = top->samples; 101986470930SIngo Molnar 10201758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 102186470930SIngo Molnar 10221758af10SArnaldo Carvalho de Melo if (hits == top->samples) 10231758af10SArnaldo Carvalho de Melo ret = poll(top->evlist->pollfd, top->evlist->nr_fds, 100); 102486470930SIngo Molnar } 102586470930SIngo Molnar 102619d4ac3cSArnaldo Carvalho de Melo out_delete: 10271758af10SArnaldo Carvalho de Melo perf_session__delete(top->session); 10281758af10SArnaldo Carvalho de Melo top->session = NULL; 102919d4ac3cSArnaldo Carvalho de Melo 103019d4ac3cSArnaldo Carvalho de Melo return 0; 103119d4ac3cSArnaldo Carvalho de Melo } 103219d4ac3cSArnaldo Carvalho de Melo 103319d4ac3cSArnaldo Carvalho de Melo static int 10341758af10SArnaldo Carvalho de Melo parse_callchain_opt(const struct option *opt, const char *arg, int unset) 103519d4ac3cSArnaldo Carvalho de Melo { 10361758af10SArnaldo Carvalho de Melo struct perf_top *top = (struct perf_top *)opt->value; 103719d4ac3cSArnaldo Carvalho de Melo char *tok, *tok2; 103819d4ac3cSArnaldo Carvalho de Melo char *endptr; 103919d4ac3cSArnaldo Carvalho de Melo 104019d4ac3cSArnaldo Carvalho de Melo /* 104119d4ac3cSArnaldo Carvalho de Melo * --no-call-graph 104219d4ac3cSArnaldo Carvalho de Melo */ 104319d4ac3cSArnaldo Carvalho de Melo if (unset) { 10441758af10SArnaldo Carvalho de Melo top->dont_use_callchains = true; 104519d4ac3cSArnaldo Carvalho de Melo return 0; 104619d4ac3cSArnaldo Carvalho de Melo } 104719d4ac3cSArnaldo Carvalho de Melo 104819d4ac3cSArnaldo Carvalho de Melo symbol_conf.use_callchain = true; 104919d4ac3cSArnaldo Carvalho de Melo 105019d4ac3cSArnaldo Carvalho de Melo if (!arg) 105119d4ac3cSArnaldo Carvalho de Melo return 0; 105219d4ac3cSArnaldo Carvalho de Melo 105319d4ac3cSArnaldo Carvalho de Melo tok = strtok((char *)arg, ","); 105419d4ac3cSArnaldo Carvalho de Melo if (!tok) 105519d4ac3cSArnaldo Carvalho de Melo return -1; 105619d4ac3cSArnaldo Carvalho de Melo 105719d4ac3cSArnaldo Carvalho de Melo /* get the output mode */ 105819d4ac3cSArnaldo Carvalho de Melo if (!strncmp(tok, "graph", strlen(arg))) 105919d4ac3cSArnaldo Carvalho de Melo callchain_param.mode = CHAIN_GRAPH_ABS; 106019d4ac3cSArnaldo Carvalho de Melo 106119d4ac3cSArnaldo Carvalho de Melo else if (!strncmp(tok, "flat", strlen(arg))) 106219d4ac3cSArnaldo Carvalho de Melo callchain_param.mode = CHAIN_FLAT; 106319d4ac3cSArnaldo Carvalho de Melo 106419d4ac3cSArnaldo Carvalho de Melo else if (!strncmp(tok, "fractal", strlen(arg))) 106519d4ac3cSArnaldo Carvalho de Melo callchain_param.mode = CHAIN_GRAPH_REL; 106619d4ac3cSArnaldo Carvalho de Melo 106719d4ac3cSArnaldo Carvalho de Melo else if (!strncmp(tok, "none", strlen(arg))) { 106819d4ac3cSArnaldo Carvalho de Melo callchain_param.mode = CHAIN_NONE; 106919d4ac3cSArnaldo Carvalho de Melo symbol_conf.use_callchain = false; 107019d4ac3cSArnaldo Carvalho de Melo 107119d4ac3cSArnaldo Carvalho de Melo return 0; 1072806fb630SArnaldo Carvalho de Melo } else 107319d4ac3cSArnaldo Carvalho de Melo return -1; 107419d4ac3cSArnaldo Carvalho de Melo 107519d4ac3cSArnaldo Carvalho de Melo /* get the min percentage */ 107619d4ac3cSArnaldo Carvalho de Melo tok = strtok(NULL, ","); 107719d4ac3cSArnaldo Carvalho de Melo if (!tok) 107819d4ac3cSArnaldo Carvalho de Melo goto setup; 107919d4ac3cSArnaldo Carvalho de Melo 108019d4ac3cSArnaldo Carvalho de Melo callchain_param.min_percent = strtod(tok, &endptr); 108119d4ac3cSArnaldo Carvalho de Melo if (tok == endptr) 108219d4ac3cSArnaldo Carvalho de Melo return -1; 108319d4ac3cSArnaldo Carvalho de Melo 108419d4ac3cSArnaldo Carvalho de Melo /* get the print limit */ 108519d4ac3cSArnaldo Carvalho de Melo tok2 = strtok(NULL, ","); 108619d4ac3cSArnaldo Carvalho de Melo if (!tok2) 108719d4ac3cSArnaldo Carvalho de Melo goto setup; 108819d4ac3cSArnaldo Carvalho de Melo 108919d4ac3cSArnaldo Carvalho de Melo if (tok2[0] != 'c') { 109019d4ac3cSArnaldo Carvalho de Melo callchain_param.print_limit = strtod(tok2, &endptr); 109119d4ac3cSArnaldo Carvalho de Melo tok2 = strtok(NULL, ","); 109219d4ac3cSArnaldo Carvalho de Melo if (!tok2) 109319d4ac3cSArnaldo Carvalho de Melo goto setup; 109419d4ac3cSArnaldo Carvalho de Melo } 109519d4ac3cSArnaldo Carvalho de Melo 109619d4ac3cSArnaldo Carvalho de Melo /* get the call chain order */ 109719d4ac3cSArnaldo Carvalho de Melo if (!strcmp(tok2, "caller")) 109819d4ac3cSArnaldo Carvalho de Melo callchain_param.order = ORDER_CALLER; 109919d4ac3cSArnaldo Carvalho de Melo else if (!strcmp(tok2, "callee")) 110019d4ac3cSArnaldo Carvalho de Melo callchain_param.order = ORDER_CALLEE; 110119d4ac3cSArnaldo Carvalho de Melo else 110219d4ac3cSArnaldo Carvalho de Melo return -1; 110319d4ac3cSArnaldo Carvalho de Melo setup: 110419d4ac3cSArnaldo Carvalho de Melo if (callchain_register_param(&callchain_param) < 0) { 110519d4ac3cSArnaldo Carvalho de Melo fprintf(stderr, "Can't register callchain params\n"); 110619d4ac3cSArnaldo Carvalho de Melo return -1; 110719d4ac3cSArnaldo Carvalho de Melo } 110886470930SIngo Molnar return 0; 110986470930SIngo Molnar } 111086470930SIngo Molnar 111186470930SIngo Molnar static const char * const top_usage[] = { 111286470930SIngo Molnar "perf top [<options>]", 111386470930SIngo Molnar NULL 111486470930SIngo Molnar }; 111586470930SIngo Molnar 11161758af10SArnaldo Carvalho de Melo int cmd_top(int argc, const char **argv, const char *prefix __used) 11171758af10SArnaldo Carvalho de Melo { 11181758af10SArnaldo Carvalho de Melo struct perf_evsel *pos; 11191758af10SArnaldo Carvalho de Melo int status = -ENOMEM; 11201758af10SArnaldo Carvalho de Melo struct perf_top top = { 11211758af10SArnaldo Carvalho de Melo .count_filter = 5, 11221758af10SArnaldo Carvalho de Melo .delay_secs = 2, 11230d37aa34SArnaldo Carvalho de Melo .uid = UINT_MAX, 11241758af10SArnaldo Carvalho de Melo .freq = 1000, /* 1 KHz */ 11251758af10SArnaldo Carvalho de Melo .mmap_pages = 128, 11261758af10SArnaldo Carvalho de Melo .sym_pcnt_filter = 5, 11271758af10SArnaldo Carvalho de Melo }; 11281758af10SArnaldo Carvalho de Melo char callchain_default_opt[] = "fractal,0.5,callee"; 11291758af10SArnaldo Carvalho de Melo const struct option options[] = { 11308c3e10ebSArnaldo Carvalho de Melo OPT_CALLBACK('e', "event", &top.evlist, "event", 113186470930SIngo Molnar "event selector. use 'perf list' to list available events", 1132f120f9d5SJiri Olsa parse_events_option), 11331758af10SArnaldo Carvalho de Melo OPT_INTEGER('c', "count", &top.default_interval, 113486470930SIngo Molnar "event period to sample"), 1135b52956c9SDavid Ahern OPT_STRING('p', "pid", &top.target_pid, "pid", 1136d6d901c2SZhang, Yanmin "profile events on existing process id"), 1137b52956c9SDavid Ahern OPT_STRING('t', "tid", &top.target_tid, "tid", 1138d6d901c2SZhang, Yanmin "profile events on existing thread id"), 11391758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('a', "all-cpus", &top.system_wide, 114086470930SIngo Molnar "system-wide collection from all CPUs"), 11418c3e10ebSArnaldo Carvalho de Melo OPT_STRING('C', "cpu", &top.cpu_list, "cpu", 1142c45c6ea2SStephane Eranian "list of cpus to monitor"), 1143b32d133aSArnaldo Carvalho de Melo OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1144b32d133aSArnaldo Carvalho de Melo "file", "vmlinux pathname"), 11458c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, 11468ffcda17SArnaldo Carvalho de Melo "hide kernel symbols"), 11471758af10SArnaldo Carvalho de Melo OPT_UINTEGER('m', "mmap-pages", &top.mmap_pages, "number of mmap data pages"), 11481758af10SArnaldo Carvalho de Melo OPT_INTEGER('r', "realtime", &top.realtime_prio, 114986470930SIngo Molnar "collect data with this RT SCHED_FIFO priority"), 11508c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('d', "delay", &top.delay_secs, 115186470930SIngo Molnar "number of seconds to delay between refreshes"), 11521758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, 115386470930SIngo Molnar "dump the symbol table used for profiling"), 11548c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('f', "count-filter", &top.count_filter, 115586470930SIngo Molnar "only display functions with more events than this"), 11561758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('g', "group", &top.group, 115786470930SIngo Molnar "put the counters into a counter group"), 11581758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('i', "inherit", &top.inherit, 11590fdc7e67SMike Galbraith "child tasks inherit counters"), 11601758af10SArnaldo Carvalho de Melo OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", 11616cff0e8dSKirill Smelkov "symbol to annotate"), 11628c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('z', "zero", &top.zero, 116386470930SIngo Molnar "zero history across updates"), 11648c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('F', "freq", &top.freq, 116586470930SIngo Molnar "profile at this frequency"), 11668c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('E', "entries", &top.print_entries, 116786470930SIngo Molnar "display this many functions"), 11688c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, 11698ffcda17SArnaldo Carvalho de Melo "hide user symbols"), 11701758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), 11711758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), 1172c0555642SIan Munsie OPT_INCR('v', "verbose", &verbose, 11733da297a6SIngo Molnar "be more verbose (show counter open errors, etc)"), 1174ab81f3fdSArnaldo Carvalho de Melo OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 1175ab81f3fdSArnaldo Carvalho de Melo "sort by key(s): pid, comm, dso, symbol, parent"), 1176ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 1177ab81f3fdSArnaldo Carvalho de Melo "Show a column with the number of samples"), 11781758af10SArnaldo Carvalho de Melo OPT_CALLBACK_DEFAULT('G', "call-graph", &top, "output_type,min_percent, call_order", 117919d4ac3cSArnaldo Carvalho de Melo "Display callchains using output_type (graph, flat, fractal, or none), min percent threshold and callchain order. " 118019d4ac3cSArnaldo Carvalho de Melo "Default: fractal,0.5,callee", &parse_callchain_opt, 118119d4ac3cSArnaldo Carvalho de Melo callchain_default_opt), 1182ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 1183ab81f3fdSArnaldo Carvalho de Melo "Show a column with the sum of periods"), 1184ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 1185ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these dsos"), 1186ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1187ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these comms"), 1188ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1189ab81f3fdSArnaldo Carvalho de Melo "only consider these symbols"), 119064c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, 119164c6f0c7SArnaldo Carvalho de Melo "Interleave source code with assembly code (default)"), 119264c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, 119364c6f0c7SArnaldo Carvalho de Melo "Display raw encoding of assembly instructions (default)"), 119464c6f0c7SArnaldo Carvalho de Melo OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", 119564c6f0c7SArnaldo Carvalho de Melo "Specify disassembler style (e.g. -M intel for intel syntax)"), 11960d37aa34SArnaldo Carvalho de Melo OPT_STRING('u', "uid", &top.uid_str, "user", "user to profile"), 119786470930SIngo Molnar OPT_END() 119886470930SIngo Molnar }; 119986470930SIngo Molnar 12008c3e10ebSArnaldo Carvalho de Melo top.evlist = perf_evlist__new(NULL, NULL); 12018c3e10ebSArnaldo Carvalho de Melo if (top.evlist == NULL) 1202361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1203361c99a6SArnaldo Carvalho de Melo 1204ab81f3fdSArnaldo Carvalho de Melo symbol_conf.exclude_other = false; 120586470930SIngo Molnar 120686470930SIngo Molnar argc = parse_options(argc, argv, options, top_usage, 0); 120786470930SIngo Molnar if (argc) 120886470930SIngo Molnar usage_with_options(top_usage, options); 120986470930SIngo Molnar 1210ab81f3fdSArnaldo Carvalho de Melo if (sort_order == default_sort_order) 1211ab81f3fdSArnaldo Carvalho de Melo sort_order = "dso,symbol"; 1212ab81f3fdSArnaldo Carvalho de Melo 1213ab81f3fdSArnaldo Carvalho de Melo setup_sorting(top_usage, options); 1214ab81f3fdSArnaldo Carvalho de Melo 12151758af10SArnaldo Carvalho de Melo if (top.use_stdio) 1216c0443df1SArnaldo Carvalho de Melo use_browser = 0; 12171758af10SArnaldo Carvalho de Melo else if (top.use_tui) 1218c0443df1SArnaldo Carvalho de Melo use_browser = 1; 1219c0443df1SArnaldo Carvalho de Melo 1220c0443df1SArnaldo Carvalho de Melo setup_browser(false); 1221c0443df1SArnaldo Carvalho de Melo 12220d37aa34SArnaldo Carvalho de Melo top.uid = parse_target_uid(top.uid_str, top.target_tid, top.target_pid); 12230d37aa34SArnaldo Carvalho de Melo if (top.uid_str != NULL && top.uid == UINT_MAX - 1) 12240d37aa34SArnaldo Carvalho de Melo goto out_delete_evlist; 12250d37aa34SArnaldo Carvalho de Melo 122686470930SIngo Molnar /* CPU and PID are mutually exclusive */ 1227b52956c9SDavid Ahern if (top.target_tid && top.cpu_list) { 122886470930SIngo Molnar printf("WARNING: PID switch overriding CPU\n"); 122986470930SIngo Molnar sleep(1); 12308c3e10ebSArnaldo Carvalho de Melo top.cpu_list = NULL; 123186470930SIngo Molnar } 123286470930SIngo Molnar 1233b52956c9SDavid Ahern if (top.target_pid) 12348c3e10ebSArnaldo Carvalho de Melo top.target_tid = top.target_pid; 12357e2ed097SArnaldo Carvalho de Melo 12368c3e10ebSArnaldo Carvalho de Melo if (perf_evlist__create_maps(top.evlist, top.target_pid, 12370d37aa34SArnaldo Carvalho de Melo top.target_tid, top.uid, top.cpu_list) < 0) 12387e2ed097SArnaldo Carvalho de Melo usage_with_options(top_usage, options); 12397e2ed097SArnaldo Carvalho de Melo 12408c3e10ebSArnaldo Carvalho de Melo if (!top.evlist->nr_entries && 12418c3e10ebSArnaldo Carvalho de Melo perf_evlist__add_default(top.evlist) < 0) { 124269aad6f1SArnaldo Carvalho de Melo pr_err("Not enough memory for event selector list\n"); 124369aad6f1SArnaldo Carvalho de Melo return -ENOMEM; 124469aad6f1SArnaldo Carvalho de Melo } 12455a8e5a30SArnaldo Carvalho de Melo 1246d04b35f8SArnaldo Carvalho de Melo symbol_conf.nr_events = top.evlist->nr_entries; 1247d04b35f8SArnaldo Carvalho de Melo 12488c3e10ebSArnaldo Carvalho de Melo if (top.delay_secs < 1) 12498c3e10ebSArnaldo Carvalho de Melo top.delay_secs = 1; 125086470930SIngo Molnar 12517e4ff9e3SMike Galbraith /* 12527e4ff9e3SMike Galbraith * User specified count overrides default frequency. 12537e4ff9e3SMike Galbraith */ 12541758af10SArnaldo Carvalho de Melo if (top.default_interval) 12558c3e10ebSArnaldo Carvalho de Melo top.freq = 0; 12568c3e10ebSArnaldo Carvalho de Melo else if (top.freq) { 12571758af10SArnaldo Carvalho de Melo top.default_interval = top.freq; 12587e4ff9e3SMike Galbraith } else { 12597e4ff9e3SMike Galbraith fprintf(stderr, "frequency and count are zero, aborting\n"); 12607e4ff9e3SMike Galbraith exit(EXIT_FAILURE); 12617e4ff9e3SMike Galbraith } 12627e4ff9e3SMike Galbraith 12638c3e10ebSArnaldo Carvalho de Melo list_for_each_entry(pos, &top.evlist->entries, node) { 126469aad6f1SArnaldo Carvalho de Melo /* 126569aad6f1SArnaldo Carvalho de Melo * Fill in the ones not specifically initialized via -c: 126669aad6f1SArnaldo Carvalho de Melo */ 1267806fb630SArnaldo Carvalho de Melo if (!pos->attr.sample_period) 12681758af10SArnaldo Carvalho de Melo pos->attr.sample_period = top.default_interval; 126969aad6f1SArnaldo Carvalho de Melo } 127069aad6f1SArnaldo Carvalho de Melo 12718c3e10ebSArnaldo Carvalho de Melo top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); 1272cc841580SArnaldo Carvalho de Melo 1273ab81f3fdSArnaldo Carvalho de Melo symbol_conf.priv_size = sizeof(struct annotation); 127469aad6f1SArnaldo Carvalho de Melo 127569aad6f1SArnaldo Carvalho de Melo symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); 127669aad6f1SArnaldo Carvalho de Melo if (symbol__init() < 0) 127769aad6f1SArnaldo Carvalho de Melo return -1; 127869aad6f1SArnaldo Carvalho de Melo 1279ab81f3fdSArnaldo Carvalho de Melo sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout); 1280ab81f3fdSArnaldo Carvalho de Melo sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout); 1281ab81f3fdSArnaldo Carvalho de Melo sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout); 1282ab81f3fdSArnaldo Carvalho de Melo 128319d4ac3cSArnaldo Carvalho de Melo /* 128419d4ac3cSArnaldo Carvalho de Melo * Avoid annotation data structures overhead when symbols aren't on the 128519d4ac3cSArnaldo Carvalho de Melo * sort list. 128619d4ac3cSArnaldo Carvalho de Melo */ 12871758af10SArnaldo Carvalho de Melo top.sort_has_symbols = sort_sym.list.next != NULL; 128819d4ac3cSArnaldo Carvalho de Melo 12891758af10SArnaldo Carvalho de Melo get_term_dimensions(&top.winsize); 12908c3e10ebSArnaldo Carvalho de Melo if (top.print_entries == 0) { 12911758af10SArnaldo Carvalho de Melo struct sigaction act = { 12921758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 12931758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 12941758af10SArnaldo Carvalho de Melo }; 12951758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(&top); 12961758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 12973b6ed988SArnaldo Carvalho de Melo } 12983b6ed988SArnaldo Carvalho de Melo 12991758af10SArnaldo Carvalho de Melo status = __cmd_top(&top); 1300806fb630SArnaldo Carvalho de Melo 13010d37aa34SArnaldo Carvalho de Melo out_delete_evlist: 13028c3e10ebSArnaldo Carvalho de Melo perf_evlist__delete(top.evlist); 130369aad6f1SArnaldo Carvalho de Melo 130469aad6f1SArnaldo Carvalho de Melo return status; 130586470930SIngo Molnar } 1306