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 678c3e10ebSArnaldo Carvalho de Melo static struct perf_top top = { 688c3e10ebSArnaldo Carvalho de Melo .count_filter = 5, 698c3e10ebSArnaldo Carvalho de Melo .delay_secs = 2, 708c3e10ebSArnaldo Carvalho de Melo .target_pid = -1, 718c3e10ebSArnaldo Carvalho de Melo .target_tid = -1, 728c3e10ebSArnaldo Carvalho de Melo .freq = 1000, /* 1 KHz */ 738c3e10ebSArnaldo Carvalho de Melo }; 74361c99a6SArnaldo Carvalho de Melo 75c0555642SIan Munsie static bool system_wide = false; 7686470930SIngo Molnar 77c0443df1SArnaldo Carvalho de Melo static bool use_tui, use_stdio; 78c0443df1SArnaldo Carvalho de Melo 7919d4ac3cSArnaldo Carvalho de Melo static bool sort_has_symbols; 8019d4ac3cSArnaldo Carvalho de Melo 8119d4ac3cSArnaldo Carvalho de Melo static bool dont_use_callchains; 8219d4ac3cSArnaldo Carvalho de Melo static char callchain_default_opt[] = "fractal,0.5,callee"; 8319d4ac3cSArnaldo Carvalho de Melo 8419d4ac3cSArnaldo Carvalho de Melo 857e4ff9e3SMike Galbraith static int default_interval = 0; 8686470930SIngo Molnar 875f6f5580SArnaldo Carvalho de Melo static bool kptr_restrict_warned; 88e4a338d0SArnaldo Carvalho de Melo static bool vmlinux_warned; 89c0555642SIan Munsie static bool inherit = false; 901967936dSArnaldo Carvalho de Melo static int realtime_prio = 0; 91c0555642SIan Munsie static bool group = false; 927b27509fSArnaldo Carvalho de Melo static bool sample_id_all_avail = true; 9370db7533SArnaldo Carvalho de Melo static unsigned int mmap_pages = 128; 9486470930SIngo Molnar 95c0555642SIan Munsie static bool dump_symtab = false; 9686470930SIngo Molnar 9713cc5079SArnaldo Carvalho de Melo static struct winsize winsize; 988ffcda17SArnaldo Carvalho de Melo 99edb7c60eSArnaldo Carvalho de Melo static const char *sym_filter = NULL; 100923c42c1SMike Galbraith static int sym_pcnt_filter = 5; 10186470930SIngo Molnar 102923c42c1SMike Galbraith /* 103923c42c1SMike Galbraith * Source functions 104923c42c1SMike Galbraith */ 105923c42c1SMike Galbraith 106895f0edcSArnaldo Carvalho de Melo void get_term_dimensions(struct winsize *ws) 1073b6ed988SArnaldo Carvalho de Melo { 10813cc5079SArnaldo Carvalho de Melo char *s = getenv("LINES"); 1093b6ed988SArnaldo Carvalho de Melo 11013cc5079SArnaldo Carvalho de Melo if (s != NULL) { 11113cc5079SArnaldo Carvalho de Melo ws->ws_row = atoi(s); 11213cc5079SArnaldo Carvalho de Melo s = getenv("COLUMNS"); 11313cc5079SArnaldo Carvalho de Melo if (s != NULL) { 11413cc5079SArnaldo Carvalho de Melo ws->ws_col = atoi(s); 11513cc5079SArnaldo Carvalho de Melo if (ws->ws_row && ws->ws_col) 11613cc5079SArnaldo Carvalho de Melo return; 11713cc5079SArnaldo Carvalho de Melo } 11813cc5079SArnaldo Carvalho de Melo } 1193b6ed988SArnaldo Carvalho de Melo #ifdef TIOCGWINSZ 12013cc5079SArnaldo Carvalho de Melo if (ioctl(1, TIOCGWINSZ, ws) == 0 && 12113cc5079SArnaldo Carvalho de Melo ws->ws_row && ws->ws_col) 12213cc5079SArnaldo Carvalho de Melo return; 1233b6ed988SArnaldo Carvalho de Melo #endif 12413cc5079SArnaldo Carvalho de Melo ws->ws_row = 25; 12513cc5079SArnaldo Carvalho de Melo ws->ws_col = 80; 1263b6ed988SArnaldo Carvalho de Melo } 1273b6ed988SArnaldo Carvalho de Melo 12813cc5079SArnaldo Carvalho de Melo static void update_print_entries(struct winsize *ws) 1293b6ed988SArnaldo Carvalho de Melo { 1308c3e10ebSArnaldo Carvalho de Melo top.print_entries = ws->ws_row; 13113cc5079SArnaldo Carvalho de Melo 1328c3e10ebSArnaldo Carvalho de Melo if (top.print_entries > 9) 1338c3e10ebSArnaldo Carvalho de Melo top.print_entries -= 9; 1343b6ed988SArnaldo Carvalho de Melo } 1353b6ed988SArnaldo Carvalho de Melo 1363b6ed988SArnaldo Carvalho de Melo static void sig_winch_handler(int sig __used) 1373b6ed988SArnaldo Carvalho de Melo { 13813cc5079SArnaldo Carvalho de Melo get_term_dimensions(&winsize); 13913cc5079SArnaldo Carvalho de Melo update_print_entries(&winsize); 1403b6ed988SArnaldo Carvalho de Melo } 1413b6ed988SArnaldo Carvalho de Melo 142ab81f3fdSArnaldo Carvalho de Melo static int parse_source(struct hist_entry *he) 143923c42c1SMike Galbraith { 144923c42c1SMike Galbraith struct symbol *sym; 145ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 146439d473bSArnaldo Carvalho de Melo struct map *map; 14736532461SArnaldo Carvalho de Melo int err = -1; 148923c42c1SMike Galbraith 149ab81f3fdSArnaldo Carvalho de Melo if (!he || !he->ms.sym) 150b0a9ab62SArnaldo Carvalho de Melo return -1; 151b0a9ab62SArnaldo Carvalho de Melo 152ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 153ab81f3fdSArnaldo Carvalho de Melo map = he->ms.map; 154b0a9ab62SArnaldo Carvalho de Melo 155b0a9ab62SArnaldo Carvalho de Melo /* 156b0a9ab62SArnaldo Carvalho de Melo * We can't annotate with just /proc/kallsyms 157b0a9ab62SArnaldo Carvalho de Melo */ 158878b439dSArnaldo Carvalho de Melo if (map->dso->symtab_type == SYMTAB__KALLSYMS) { 159ce6f4fabSArnaldo Carvalho de Melo pr_err("Can't annotate %s: No vmlinux file was found in the " 160ce6f4fabSArnaldo Carvalho de Melo "path\n", sym->name); 161ce6f4fabSArnaldo Carvalho de Melo sleep(1); 162b0a9ab62SArnaldo Carvalho de Melo return -1; 163b269876cSArnaldo Carvalho de Melo } 164b269876cSArnaldo Carvalho de Melo 165ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 166ce6f4fabSArnaldo Carvalho de Melo if (notes->src != NULL) { 167ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 168923c42c1SMike Galbraith goto out_assign; 169923c42c1SMike Galbraith } 170923c42c1SMike Galbraith 171ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 172923c42c1SMike Galbraith 173d04b35f8SArnaldo Carvalho de Melo if (symbol__alloc_hist(sym) < 0) { 174c97cf422SArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 17536532461SArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 17636532461SArnaldo Carvalho de Melo sym->name); 177ce6f4fabSArnaldo Carvalho de Melo sleep(1); 178c97cf422SArnaldo Carvalho de Melo return err; 179923c42c1SMike Galbraith } 18036532461SArnaldo Carvalho de Melo 181ab81f3fdSArnaldo Carvalho de Melo err = symbol__annotate(sym, map, 0); 18236532461SArnaldo Carvalho de Melo if (err == 0) { 183923c42c1SMike Galbraith out_assign: 184ab81f3fdSArnaldo Carvalho de Melo top.sym_filter_entry = he; 18536532461SArnaldo Carvalho de Melo } 186c97cf422SArnaldo Carvalho de Melo 187ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 18836532461SArnaldo Carvalho de Melo return err; 189923c42c1SMike Galbraith } 190923c42c1SMike Galbraith 191ab81f3fdSArnaldo Carvalho de Melo static void __zero_source_counters(struct hist_entry *he) 192923c42c1SMike Galbraith { 193ab81f3fdSArnaldo Carvalho de Melo struct symbol *sym = he->ms.sym; 19436532461SArnaldo Carvalho de Melo symbol__annotate_zero_histograms(sym); 195923c42c1SMike Galbraith } 196923c42c1SMike Galbraith 197ab81f3fdSArnaldo Carvalho de Melo static void record_precise_ip(struct hist_entry *he, int counter, u64 ip) 198923c42c1SMike Galbraith { 199ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 200ce6f4fabSArnaldo Carvalho de Melo struct symbol *sym; 201ce6f4fabSArnaldo Carvalho de Melo 202ab81f3fdSArnaldo Carvalho de Melo if (he == NULL || he->ms.sym == NULL || 203f9e3d4b1SArnaldo Carvalho de Melo ((top.sym_filter_entry == NULL || 204f9e3d4b1SArnaldo Carvalho de Melo top.sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1)) 205923c42c1SMike Galbraith return; 206923c42c1SMike Galbraith 207ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 208ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 209ce6f4fabSArnaldo Carvalho de Melo 210ce6f4fabSArnaldo Carvalho de Melo if (pthread_mutex_trylock(¬es->lock)) 211923c42c1SMike Galbraith return; 212923c42c1SMike Galbraith 213d04b35f8SArnaldo Carvalho de Melo if (notes->src == NULL && symbol__alloc_hist(sym) < 0) { 214ab81f3fdSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 215ab81f3fdSArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 216ab81f3fdSArnaldo Carvalho de Melo sym->name); 217ab81f3fdSArnaldo Carvalho de Melo sleep(1); 218ab81f3fdSArnaldo Carvalho de Melo return; 219ab81f3fdSArnaldo Carvalho de Melo } 220ab81f3fdSArnaldo Carvalho de Melo 221ab81f3fdSArnaldo Carvalho de Melo ip = he->ms.map->map_ip(he->ms.map, ip); 222ab81f3fdSArnaldo Carvalho de Melo symbol__inc_addr_samples(sym, he->ms.map, counter, ip); 223923c42c1SMike Galbraith 224ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 225923c42c1SMike Galbraith } 226923c42c1SMike Galbraith 227ab81f3fdSArnaldo Carvalho de Melo static void show_details(struct hist_entry *he) 228923c42c1SMike Galbraith { 229ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 230923c42c1SMike Galbraith struct symbol *symbol; 23136532461SArnaldo Carvalho de Melo int more; 232923c42c1SMike Galbraith 233ab81f3fdSArnaldo Carvalho de Melo if (!he) 234923c42c1SMike Galbraith return; 235923c42c1SMike Galbraith 236ab81f3fdSArnaldo Carvalho de Melo symbol = he->ms.sym; 237ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(symbol); 238ce6f4fabSArnaldo Carvalho de Melo 239ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 240ce6f4fabSArnaldo Carvalho de Melo 241ce6f4fabSArnaldo Carvalho de Melo if (notes->src == NULL) 242ce6f4fabSArnaldo Carvalho de Melo goto out_unlock; 243923c42c1SMike Galbraith 2448c3e10ebSArnaldo Carvalho de Melo printf("Showing %s for %s\n", event_name(top.sym_evsel), symbol->name); 245923c42c1SMike Galbraith printf(" Events Pcnt (>=%d%%)\n", sym_pcnt_filter); 246923c42c1SMike Galbraith 247ab81f3fdSArnaldo Carvalho de Melo more = symbol__annotate_printf(symbol, he->ms.map, top.sym_evsel->idx, 248d5e3d747SArnaldo Carvalho de Melo 0, sym_pcnt_filter, top.print_entries, 4); 24936532461SArnaldo Carvalho de Melo if (top.zero) 25036532461SArnaldo Carvalho de Melo symbol__annotate_zero_histogram(symbol, top.sym_evsel->idx); 25136532461SArnaldo Carvalho de Melo else 252ce6f4fabSArnaldo Carvalho de Melo symbol__annotate_decay_histogram(symbol, top.sym_evsel->idx); 25336532461SArnaldo Carvalho de Melo if (more != 0) 254923c42c1SMike Galbraith printf("%d lines not displayed, maybe increase display entries [e]\n", more); 255ce6f4fabSArnaldo Carvalho de Melo out_unlock: 256ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 257923c42c1SMike Galbraith } 25886470930SIngo Molnar 25986470930SIngo Molnar static const char CONSOLE_CLEAR[] = "[H[2J"; 26086470930SIngo Molnar 261ab81f3fdSArnaldo Carvalho de Melo static struct hist_entry * 262ab81f3fdSArnaldo Carvalho de Melo perf_session__add_hist_entry(struct perf_session *session, 263ab81f3fdSArnaldo Carvalho de Melo struct addr_location *al, 264ab81f3fdSArnaldo Carvalho de Melo struct perf_sample *sample, 265ab81f3fdSArnaldo Carvalho de Melo struct perf_evsel *evsel) 26686470930SIngo Molnar { 267ab81f3fdSArnaldo Carvalho de Melo struct hist_entry *he; 268ab81f3fdSArnaldo Carvalho de Melo 269ab81f3fdSArnaldo Carvalho de Melo he = __hists__add_entry(&evsel->hists, al, NULL, sample->period); 270ab81f3fdSArnaldo Carvalho de Melo if (he == NULL) 271ab81f3fdSArnaldo Carvalho de Melo return NULL; 272ab81f3fdSArnaldo Carvalho de Melo 273ab81f3fdSArnaldo Carvalho de Melo session->hists.stats.total_period += sample->period; 274ab81f3fdSArnaldo Carvalho de Melo hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); 275ab81f3fdSArnaldo Carvalho de Melo return he; 27686470930SIngo Molnar } 27786470930SIngo Molnar 278dcc101d1SArnaldo Carvalho de Melo static void print_sym_table(void) 27986470930SIngo Molnar { 2808c3e10ebSArnaldo Carvalho de Melo char bf[160]; 2818c3e10ebSArnaldo Carvalho de Melo int printed = 0; 28213cc5079SArnaldo Carvalho de Melo const int win_width = winsize.ws_col - 1; 28386470930SIngo Molnar 28486470930SIngo Molnar puts(CONSOLE_CLEAR); 28586470930SIngo Molnar 2868c3e10ebSArnaldo Carvalho de Melo perf_top__header_snprintf(&top, bf, sizeof(bf)); 2878c3e10ebSArnaldo Carvalho de Melo printf("%s\n", bf); 28886470930SIngo Molnar 2898c3e10ebSArnaldo Carvalho de Melo perf_top__reset_sample_counters(&top); 29086470930SIngo Molnar 2911a105f74SArnaldo Carvalho de Melo printf("%-*.*s\n", win_width, win_width, graph_dotted_line); 29286470930SIngo Molnar 2937b27509fSArnaldo Carvalho de Melo if (top.sym_evsel->hists.stats.nr_lost_warned != 2947b27509fSArnaldo Carvalho de Melo top.sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) { 2957b27509fSArnaldo Carvalho de Melo top.sym_evsel->hists.stats.nr_lost_warned = 2967b27509fSArnaldo Carvalho de Melo top.sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]; 2977b27509fSArnaldo Carvalho de Melo color_fprintf(stdout, PERF_COLOR_RED, 2987b27509fSArnaldo Carvalho de Melo "WARNING: LOST %d chunks, Check IO/CPU overload", 2997b27509fSArnaldo Carvalho de Melo top.sym_evsel->hists.stats.nr_lost_warned); 300ab81f3fdSArnaldo Carvalho de Melo ++printed; 30193fc64f1SArnaldo Carvalho de Melo } 30293fc64f1SArnaldo Carvalho de Melo 303c97cf422SArnaldo Carvalho de Melo if (top.sym_filter_entry) { 304c97cf422SArnaldo Carvalho de Melo show_details(top.sym_filter_entry); 305923c42c1SMike Galbraith return; 306923c42c1SMike Galbraith } 307923c42c1SMike Galbraith 308ab81f3fdSArnaldo Carvalho de Melo hists__collapse_resort_threaded(&top.sym_evsel->hists); 309ab81f3fdSArnaldo Carvalho de Melo hists__output_resort_threaded(&top.sym_evsel->hists); 310b079d4e9SArnaldo Carvalho de Melo hists__decay_entries_threaded(&top.sym_evsel->hists, 311b079d4e9SArnaldo Carvalho de Melo top.hide_user_symbols, 312b079d4e9SArnaldo Carvalho de Melo top.hide_kernel_symbols); 313ab81f3fdSArnaldo Carvalho de Melo hists__output_recalc_col_len(&top.sym_evsel->hists, winsize.ws_row - 3); 3141a105f74SArnaldo Carvalho de Melo putchar('\n'); 315ab81f3fdSArnaldo Carvalho de Melo hists__fprintf(&top.sym_evsel->hists, NULL, false, false, 316ab81f3fdSArnaldo Carvalho de Melo winsize.ws_row - 4 - printed, win_width, stdout); 31786470930SIngo Molnar } 31886470930SIngo Molnar 319923c42c1SMike Galbraith static void prompt_integer(int *target, const char *msg) 320923c42c1SMike Galbraith { 321923c42c1SMike Galbraith char *buf = malloc(0), *p; 322923c42c1SMike Galbraith size_t dummy = 0; 323923c42c1SMike Galbraith int tmp; 324923c42c1SMike Galbraith 325923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 326923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 327923c42c1SMike Galbraith return; 328923c42c1SMike Galbraith 329923c42c1SMike Galbraith p = strchr(buf, '\n'); 330923c42c1SMike Galbraith if (p) 331923c42c1SMike Galbraith *p = 0; 332923c42c1SMike Galbraith 333923c42c1SMike Galbraith p = buf; 334923c42c1SMike Galbraith while(*p) { 335923c42c1SMike Galbraith if (!isdigit(*p)) 336923c42c1SMike Galbraith goto out_free; 337923c42c1SMike Galbraith p++; 338923c42c1SMike Galbraith } 339923c42c1SMike Galbraith tmp = strtoul(buf, NULL, 10); 340923c42c1SMike Galbraith *target = tmp; 341923c42c1SMike Galbraith out_free: 342923c42c1SMike Galbraith free(buf); 343923c42c1SMike Galbraith } 344923c42c1SMike Galbraith 345923c42c1SMike Galbraith static void prompt_percent(int *target, const char *msg) 346923c42c1SMike Galbraith { 347923c42c1SMike Galbraith int tmp = 0; 348923c42c1SMike Galbraith 349923c42c1SMike Galbraith prompt_integer(&tmp, msg); 350923c42c1SMike Galbraith if (tmp >= 0 && tmp <= 100) 351923c42c1SMike Galbraith *target = tmp; 352923c42c1SMike Galbraith } 353923c42c1SMike Galbraith 354ab81f3fdSArnaldo Carvalho de Melo static void prompt_symbol(struct hist_entry **target, const char *msg) 355923c42c1SMike Galbraith { 356923c42c1SMike Galbraith char *buf = malloc(0), *p; 357ab81f3fdSArnaldo Carvalho de Melo struct hist_entry *syme = *target, *n, *found = NULL; 358ab81f3fdSArnaldo Carvalho de Melo struct rb_node *next; 359923c42c1SMike Galbraith size_t dummy = 0; 360923c42c1SMike Galbraith 361923c42c1SMike Galbraith /* zero counters of active symbol */ 362923c42c1SMike Galbraith if (syme) { 363923c42c1SMike Galbraith __zero_source_counters(syme); 364923c42c1SMike Galbraith *target = NULL; 365923c42c1SMike Galbraith } 366923c42c1SMike Galbraith 367923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 368923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 369923c42c1SMike Galbraith goto out_free; 370923c42c1SMike Galbraith 371923c42c1SMike Galbraith p = strchr(buf, '\n'); 372923c42c1SMike Galbraith if (p) 373923c42c1SMike Galbraith *p = 0; 374923c42c1SMike Galbraith 375ab81f3fdSArnaldo Carvalho de Melo next = rb_first(&top.sym_evsel->hists.entries); 376ab81f3fdSArnaldo Carvalho de Melo while (next) { 377ab81f3fdSArnaldo Carvalho de Melo n = rb_entry(next, struct hist_entry, rb_node); 378ab81f3fdSArnaldo Carvalho de Melo if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { 379ab81f3fdSArnaldo Carvalho de Melo found = n; 380923c42c1SMike Galbraith break; 381923c42c1SMike Galbraith } 382ab81f3fdSArnaldo Carvalho de Melo next = rb_next(&n->rb_node); 383923c42c1SMike Galbraith } 384923c42c1SMike Galbraith 385923c42c1SMike Galbraith if (!found) { 38666aeb6d5SKirill Smelkov fprintf(stderr, "Sorry, %s is not active.\n", buf); 387923c42c1SMike Galbraith sleep(1); 388923c42c1SMike Galbraith return; 389923c42c1SMike Galbraith } else 390923c42c1SMike Galbraith parse_source(found); 391923c42c1SMike Galbraith 392923c42c1SMike Galbraith out_free: 393923c42c1SMike Galbraith free(buf); 394923c42c1SMike Galbraith } 395923c42c1SMike Galbraith 396091bd2e9SMike Galbraith static void print_mapped_keys(void) 397923c42c1SMike Galbraith { 398091bd2e9SMike Galbraith char *name = NULL; 399091bd2e9SMike Galbraith 400c97cf422SArnaldo Carvalho de Melo if (top.sym_filter_entry) { 401ab81f3fdSArnaldo Carvalho de Melo struct symbol *sym = top.sym_filter_entry->ms.sym; 402091bd2e9SMike Galbraith name = sym->name; 403091bd2e9SMike Galbraith } 404091bd2e9SMike Galbraith 405091bd2e9SMike Galbraith fprintf(stdout, "\nMapped keys:\n"); 4068c3e10ebSArnaldo Carvalho de Melo fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top.delay_secs); 4078c3e10ebSArnaldo Carvalho de Melo fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top.print_entries); 408091bd2e9SMike Galbraith 4098c3e10ebSArnaldo Carvalho de Melo if (top.evlist->nr_entries > 1) 4108c3e10ebSArnaldo Carvalho de Melo fprintf(stdout, "\t[E] active event counter. \t(%s)\n", event_name(top.sym_evsel)); 411091bd2e9SMike Galbraith 4128c3e10ebSArnaldo Carvalho de Melo fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top.count_filter); 413091bd2e9SMike Galbraith 414091bd2e9SMike Galbraith fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", sym_pcnt_filter); 415091bd2e9SMike Galbraith fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); 416091bd2e9SMike Galbraith fprintf(stdout, "\t[S] stop annotation.\n"); 417091bd2e9SMike Galbraith 4188ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4198ffcda17SArnaldo Carvalho de Melo "\t[K] hide kernel_symbols symbols. \t(%s)\n", 4208c3e10ebSArnaldo Carvalho de Melo top.hide_kernel_symbols ? "yes" : "no"); 4218ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4228ffcda17SArnaldo Carvalho de Melo "\t[U] hide user symbols. \t(%s)\n", 4238c3e10ebSArnaldo Carvalho de Melo top.hide_user_symbols ? "yes" : "no"); 4248c3e10ebSArnaldo Carvalho de Melo fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top.zero ? 1 : 0); 425091bd2e9SMike Galbraith fprintf(stdout, "\t[qQ] quit.\n"); 426091bd2e9SMike Galbraith } 427091bd2e9SMike Galbraith 428091bd2e9SMike Galbraith static int key_mapped(int c) 429091bd2e9SMike Galbraith { 430091bd2e9SMike Galbraith switch (c) { 431091bd2e9SMike Galbraith case 'd': 432091bd2e9SMike Galbraith case 'e': 433091bd2e9SMike Galbraith case 'f': 434091bd2e9SMike Galbraith case 'z': 435091bd2e9SMike Galbraith case 'q': 436091bd2e9SMike Galbraith case 'Q': 4378ffcda17SArnaldo Carvalho de Melo case 'K': 4388ffcda17SArnaldo Carvalho de Melo case 'U': 4396cff0e8dSKirill Smelkov case 'F': 4406cff0e8dSKirill Smelkov case 's': 4416cff0e8dSKirill Smelkov case 'S': 442091bd2e9SMike Galbraith return 1; 443091bd2e9SMike Galbraith case 'E': 444b2b7e9ebSArnaldo Carvalho de Melo return top.evlist->nr_entries > 1 ? 1 : 0; 44583a0944fSIngo Molnar default: 44683a0944fSIngo Molnar break; 447091bd2e9SMike Galbraith } 448091bd2e9SMike Galbraith 449091bd2e9SMike Galbraith return 0; 450923c42c1SMike Galbraith } 451923c42c1SMike Galbraith 452dcc101d1SArnaldo Carvalho de Melo static void handle_keypress(int c) 453923c42c1SMike Galbraith { 454091bd2e9SMike Galbraith if (!key_mapped(c)) { 455091bd2e9SMike Galbraith struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 456091bd2e9SMike Galbraith struct termios tc, save; 457091bd2e9SMike Galbraith 458091bd2e9SMike Galbraith print_mapped_keys(); 459091bd2e9SMike Galbraith fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); 460091bd2e9SMike Galbraith fflush(stdout); 461091bd2e9SMike Galbraith 462091bd2e9SMike Galbraith tcgetattr(0, &save); 463091bd2e9SMike Galbraith tc = save; 464091bd2e9SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 465091bd2e9SMike Galbraith tc.c_cc[VMIN] = 0; 466091bd2e9SMike Galbraith tc.c_cc[VTIME] = 0; 467091bd2e9SMike Galbraith tcsetattr(0, TCSANOW, &tc); 468091bd2e9SMike Galbraith 469091bd2e9SMike Galbraith poll(&stdin_poll, 1, -1); 470091bd2e9SMike Galbraith c = getc(stdin); 471091bd2e9SMike Galbraith 472091bd2e9SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 473091bd2e9SMike Galbraith if (!key_mapped(c)) 474091bd2e9SMike Galbraith return; 475091bd2e9SMike Galbraith } 476091bd2e9SMike Galbraith 477923c42c1SMike Galbraith switch (c) { 478923c42c1SMike Galbraith case 'd': 4798c3e10ebSArnaldo Carvalho de Melo prompt_integer(&top.delay_secs, "Enter display delay"); 4808c3e10ebSArnaldo Carvalho de Melo if (top.delay_secs < 1) 4818c3e10ebSArnaldo Carvalho de Melo top.delay_secs = 1; 482923c42c1SMike Galbraith break; 483923c42c1SMike Galbraith case 'e': 4848c3e10ebSArnaldo Carvalho de Melo prompt_integer(&top.print_entries, "Enter display entries (lines)"); 4858c3e10ebSArnaldo Carvalho de Melo if (top.print_entries == 0) { 48613cc5079SArnaldo Carvalho de Melo sig_winch_handler(SIGWINCH); 4873b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, sig_winch_handler); 4883b6ed988SArnaldo Carvalho de Melo } else 4893b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, SIG_DFL); 490923c42c1SMike Galbraith break; 491923c42c1SMike Galbraith case 'E': 4928c3e10ebSArnaldo Carvalho de Melo if (top.evlist->nr_entries > 1) { 493ce2d17caSAkihiro Nagai /* Select 0 as the default event: */ 494ce2d17caSAkihiro Nagai int counter = 0; 495ce2d17caSAkihiro Nagai 496923c42c1SMike Galbraith fprintf(stderr, "\nAvailable events:"); 49769aad6f1SArnaldo Carvalho de Melo 4988c3e10ebSArnaldo Carvalho de Melo list_for_each_entry(top.sym_evsel, &top.evlist->entries, node) 4998c3e10ebSArnaldo Carvalho de Melo fprintf(stderr, "\n\t%d %s", top.sym_evsel->idx, event_name(top.sym_evsel)); 500923c42c1SMike Galbraith 501ec52d976SArnaldo Carvalho de Melo prompt_integer(&counter, "Enter details event counter"); 502923c42c1SMike Galbraith 503ec52d976SArnaldo Carvalho de Melo if (counter >= top.evlist->nr_entries) { 5048c3e10ebSArnaldo Carvalho de Melo top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); 5058c3e10ebSArnaldo Carvalho de Melo fprintf(stderr, "Sorry, no such event, using %s.\n", event_name(top.sym_evsel)); 506923c42c1SMike Galbraith sleep(1); 50769aad6f1SArnaldo Carvalho de Melo break; 508923c42c1SMike Galbraith } 5098c3e10ebSArnaldo Carvalho de Melo list_for_each_entry(top.sym_evsel, &top.evlist->entries, node) 510ec52d976SArnaldo Carvalho de Melo if (top.sym_evsel->idx == counter) 51169aad6f1SArnaldo Carvalho de Melo break; 512ec52d976SArnaldo Carvalho de Melo } else 513ec52d976SArnaldo Carvalho de Melo top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); 514923c42c1SMike Galbraith break; 515923c42c1SMike Galbraith case 'f': 5168c3e10ebSArnaldo Carvalho de Melo prompt_integer(&top.count_filter, "Enter display event count filter"); 517923c42c1SMike Galbraith break; 518923c42c1SMike Galbraith case 'F': 519923c42c1SMike Galbraith prompt_percent(&sym_pcnt_filter, "Enter details display event filter (percent)"); 520923c42c1SMike Galbraith break; 5218ffcda17SArnaldo Carvalho de Melo case 'K': 5228c3e10ebSArnaldo Carvalho de Melo top.hide_kernel_symbols = !top.hide_kernel_symbols; 5238ffcda17SArnaldo Carvalho de Melo break; 524923c42c1SMike Galbraith case 'q': 525923c42c1SMike Galbraith case 'Q': 526923c42c1SMike Galbraith printf("exiting.\n"); 527c338aee8SArnaldo Carvalho de Melo if (dump_symtab) 528dcc101d1SArnaldo Carvalho de Melo perf_session__fprintf_dsos(top.session, stderr); 529923c42c1SMike Galbraith exit(0); 530923c42c1SMike Galbraith case 's': 531c97cf422SArnaldo Carvalho de Melo prompt_symbol(&top.sym_filter_entry, "Enter details symbol"); 532923c42c1SMike Galbraith break; 533923c42c1SMike Galbraith case 'S': 534c97cf422SArnaldo Carvalho de Melo if (!top.sym_filter_entry) 535923c42c1SMike Galbraith break; 536923c42c1SMike Galbraith else { 537ab81f3fdSArnaldo Carvalho de Melo struct hist_entry *syme = top.sym_filter_entry; 538923c42c1SMike Galbraith 539c97cf422SArnaldo Carvalho de Melo top.sym_filter_entry = NULL; 540923c42c1SMike Galbraith __zero_source_counters(syme); 541923c42c1SMike Galbraith } 542923c42c1SMike Galbraith break; 5438ffcda17SArnaldo Carvalho de Melo case 'U': 5448c3e10ebSArnaldo Carvalho de Melo top.hide_user_symbols = !top.hide_user_symbols; 5458ffcda17SArnaldo Carvalho de Melo break; 546923c42c1SMike Galbraith case 'z': 5478c3e10ebSArnaldo Carvalho de Melo top.zero = !top.zero; 548923c42c1SMike Galbraith break; 54983a0944fSIngo Molnar default: 55083a0944fSIngo Molnar break; 551923c42c1SMike Galbraith } 552923c42c1SMike Galbraith } 553923c42c1SMike Galbraith 554ab81f3fdSArnaldo Carvalho de Melo static void perf_top__sort_new_samples(void *arg) 555ab81f3fdSArnaldo Carvalho de Melo { 556ab81f3fdSArnaldo Carvalho de Melo struct perf_top *t = arg; 557ab81f3fdSArnaldo Carvalho de Melo perf_top__reset_sample_counters(t); 558ab81f3fdSArnaldo Carvalho de Melo 559ab81f3fdSArnaldo Carvalho de Melo if (t->evlist->selected != NULL) 560ab81f3fdSArnaldo Carvalho de Melo t->sym_evsel = t->evlist->selected; 561ab81f3fdSArnaldo Carvalho de Melo 562ab81f3fdSArnaldo Carvalho de Melo hists__collapse_resort_threaded(&t->sym_evsel->hists); 563ab81f3fdSArnaldo Carvalho de Melo hists__output_resort_threaded(&t->sym_evsel->hists); 564b079d4e9SArnaldo Carvalho de Melo hists__decay_entries_threaded(&t->sym_evsel->hists, 565b079d4e9SArnaldo Carvalho de Melo top.hide_user_symbols, 566b079d4e9SArnaldo Carvalho de Melo top.hide_kernel_symbols); 567ab81f3fdSArnaldo Carvalho de Melo } 568ab81f3fdSArnaldo Carvalho de Melo 569c0443df1SArnaldo Carvalho de Melo static void *display_thread_tui(void *arg __used) 570c0443df1SArnaldo Carvalho de Melo { 571ab81f3fdSArnaldo Carvalho de Melo const char *help = "For a higher level overview, try: perf top --sort comm,dso"; 572ab81f3fdSArnaldo Carvalho de Melo 573ab81f3fdSArnaldo Carvalho de Melo perf_top__sort_new_samples(&top); 574ab81f3fdSArnaldo Carvalho de Melo perf_evlist__tui_browse_hists(top.evlist, help, 575ab81f3fdSArnaldo Carvalho de Melo perf_top__sort_new_samples, 576ab81f3fdSArnaldo Carvalho de Melo &top, top.delay_secs); 577ab81f3fdSArnaldo Carvalho de Melo 578c0443df1SArnaldo Carvalho de Melo exit_browser(0); 579c0443df1SArnaldo Carvalho de Melo exit(0); 580c0443df1SArnaldo Carvalho de Melo return NULL; 581c0443df1SArnaldo Carvalho de Melo } 582c0443df1SArnaldo Carvalho de Melo 583f37a291cSIngo Molnar static void *display_thread(void *arg __used) 58486470930SIngo Molnar { 58586470930SIngo Molnar struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 586923c42c1SMike Galbraith struct termios tc, save; 587923c42c1SMike Galbraith int delay_msecs, c; 58886470930SIngo Molnar 589923c42c1SMike Galbraith tcgetattr(0, &save); 590923c42c1SMike Galbraith tc = save; 591923c42c1SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 592923c42c1SMike Galbraith tc.c_cc[VMIN] = 0; 593923c42c1SMike Galbraith tc.c_cc[VTIME] = 0; 594091bd2e9SMike Galbraith 5953af6e338SArnaldo Carvalho de Melo pthread__unblock_sigwinch(); 596923c42c1SMike Galbraith repeat: 5978c3e10ebSArnaldo Carvalho de Melo delay_msecs = top.delay_secs * 1000; 598923c42c1SMike Galbraith tcsetattr(0, TCSANOW, &tc); 599923c42c1SMike Galbraith /* trash return*/ 600923c42c1SMike Galbraith getc(stdin); 60186470930SIngo Molnar 6023af6e338SArnaldo Carvalho de Melo while (1) { 603dcc101d1SArnaldo Carvalho de Melo print_sym_table(); 6043af6e338SArnaldo Carvalho de Melo /* 6053af6e338SArnaldo Carvalho de Melo * Either timeout expired or we got an EINTR due to SIGWINCH, 6063af6e338SArnaldo Carvalho de Melo * refresh screen in both cases. 6073af6e338SArnaldo Carvalho de Melo */ 6083af6e338SArnaldo Carvalho de Melo switch (poll(&stdin_poll, 1, delay_msecs)) { 6093af6e338SArnaldo Carvalho de Melo case 0: 6103af6e338SArnaldo Carvalho de Melo continue; 6113af6e338SArnaldo Carvalho de Melo case -1: 6123af6e338SArnaldo Carvalho de Melo if (errno == EINTR) 6133af6e338SArnaldo Carvalho de Melo continue; 6143af6e338SArnaldo Carvalho de Melo /* Fall trhu */ 6153af6e338SArnaldo Carvalho de Melo default: 6163af6e338SArnaldo Carvalho de Melo goto process_hotkey; 6173af6e338SArnaldo Carvalho de Melo } 6183af6e338SArnaldo Carvalho de Melo } 6193af6e338SArnaldo Carvalho de Melo process_hotkey: 620923c42c1SMike Galbraith c = getc(stdin); 621923c42c1SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 622923c42c1SMike Galbraith 623dcc101d1SArnaldo Carvalho de Melo handle_keypress(c); 624923c42c1SMike Galbraith goto repeat; 62586470930SIngo Molnar 62686470930SIngo Molnar return NULL; 62786470930SIngo Molnar } 62886470930SIngo Molnar 6292ab52083SAnton Blanchard /* Tag samples to be skipped. */ 630f37a291cSIngo Molnar static const char *skip_symbols[] = { 6312ab52083SAnton Blanchard "default_idle", 632b0e8572fSArnaldo Carvalho de Melo "native_safe_halt", 6332ab52083SAnton Blanchard "cpu_idle", 6342ab52083SAnton Blanchard "enter_idle", 6352ab52083SAnton Blanchard "exit_idle", 6362ab52083SAnton Blanchard "mwait_idle", 63759b90056SArnaldo Carvalho de Melo "mwait_idle_with_hints", 6388357275bSArnaldo Carvalho de Melo "poll_idle", 6393a3393efSAnton Blanchard "ppc64_runlatch_off", 6403a3393efSAnton Blanchard "pseries_dedicated_idle_sleep", 6412ab52083SAnton Blanchard NULL 6422ab52083SAnton Blanchard }; 6432ab52083SAnton Blanchard 644ab81f3fdSArnaldo Carvalho de Melo static int symbol_filter(struct map *map __used, struct symbol *sym) 64586470930SIngo Molnar { 64686470930SIngo Molnar const char *name = sym->name; 6472ab52083SAnton Blanchard int i; 64886470930SIngo Molnar 6493a3393efSAnton Blanchard /* 6503a3393efSAnton Blanchard * ppc64 uses function descriptors and appends a '.' to the 6513a3393efSAnton Blanchard * start of every instruction address. Remove it. 6523a3393efSAnton Blanchard */ 6533a3393efSAnton Blanchard if (name[0] == '.') 6543a3393efSAnton Blanchard name++; 6553a3393efSAnton Blanchard 65686470930SIngo Molnar if (!strcmp(name, "_text") || 65786470930SIngo Molnar !strcmp(name, "_etext") || 65886470930SIngo Molnar !strcmp(name, "_sinittext") || 65986470930SIngo Molnar !strncmp("init_module", name, 11) || 66086470930SIngo Molnar !strncmp("cleanup_module", name, 14) || 66186470930SIngo Molnar strstr(name, "_text_start") || 66286470930SIngo Molnar strstr(name, "_text_end")) 66386470930SIngo Molnar return 1; 66486470930SIngo Molnar 6652ab52083SAnton Blanchard for (i = 0; skip_symbols[i]; i++) { 6662ab52083SAnton Blanchard if (!strcmp(skip_symbols[i], name)) { 667171b3be9SArnaldo Carvalho de Melo sym->ignore = true; 6682ab52083SAnton Blanchard break; 6692ab52083SAnton Blanchard } 6702ab52083SAnton Blanchard } 67186470930SIngo Molnar 67286470930SIngo Molnar return 0; 67386470930SIngo Molnar } 67486470930SIngo Molnar 6758115d60cSArnaldo Carvalho de Melo static void perf_event__process_sample(const union perf_event *event, 6767b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel, 6778d50e5b4SArnaldo Carvalho de Melo struct perf_sample *sample, 67870db7533SArnaldo Carvalho de Melo struct perf_session *session) 67986470930SIngo Molnar { 68019d4ac3cSArnaldo Carvalho de Melo struct symbol *parent = NULL; 6818115d60cSArnaldo Carvalho de Melo u64 ip = event->ip.ip; 6821ed091c4SArnaldo Carvalho de Melo struct addr_location al; 68323346f21SArnaldo Carvalho de Melo struct machine *machine; 68419d4ac3cSArnaldo Carvalho de Melo int err; 6858115d60cSArnaldo Carvalho de Melo u8 origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 68686470930SIngo Molnar 6878c3e10ebSArnaldo Carvalho de Melo ++top.samples; 68824bfef0fSArnaldo Carvalho de Melo 6898ffcda17SArnaldo Carvalho de Melo switch (origin) { 6901ed091c4SArnaldo Carvalho de Melo case PERF_RECORD_MISC_USER: 6918c3e10ebSArnaldo Carvalho de Melo ++top.us_samples; 6928c3e10ebSArnaldo Carvalho de Melo if (top.hide_user_symbols) 6938ffcda17SArnaldo Carvalho de Melo return; 69423346f21SArnaldo Carvalho de Melo machine = perf_session__find_host_machine(session); 6955b2bb75aSArnaldo Carvalho de Melo break; 6965b2bb75aSArnaldo Carvalho de Melo case PERF_RECORD_MISC_KERNEL: 6978c3e10ebSArnaldo Carvalho de Melo ++top.kernel_samples; 6988c3e10ebSArnaldo Carvalho de Melo if (top.hide_kernel_symbols) 6998ffcda17SArnaldo Carvalho de Melo return; 70023346f21SArnaldo Carvalho de Melo machine = perf_session__find_host_machine(session); 7015b2bb75aSArnaldo Carvalho de Melo break; 702a1645ce1SZhang, Yanmin case PERF_RECORD_MISC_GUEST_KERNEL: 7038c3e10ebSArnaldo Carvalho de Melo ++top.guest_kernel_samples; 7048115d60cSArnaldo Carvalho de Melo machine = perf_session__find_machine(session, event->ip.pid); 705a1645ce1SZhang, Yanmin break; 706a1645ce1SZhang, Yanmin case PERF_RECORD_MISC_GUEST_USER: 7078c3e10ebSArnaldo Carvalho de Melo ++top.guest_us_samples; 708a1645ce1SZhang, Yanmin /* 709a1645ce1SZhang, Yanmin * TODO: we don't process guest user from host side 710a1645ce1SZhang, Yanmin * except simple counting. 711a1645ce1SZhang, Yanmin */ 712a1645ce1SZhang, Yanmin return; 7135b2bb75aSArnaldo Carvalho de Melo default: 7145b2bb75aSArnaldo Carvalho de Melo return; 7155b2bb75aSArnaldo Carvalho de Melo } 7165b2bb75aSArnaldo Carvalho de Melo 71723346f21SArnaldo Carvalho de Melo if (!machine && perf_guest) { 718a1645ce1SZhang, Yanmin pr_err("Can't find guest [%d]'s kernel information\n", 7198115d60cSArnaldo Carvalho de Melo event->ip.pid); 720a1645ce1SZhang, Yanmin return; 721a1645ce1SZhang, Yanmin } 722a1645ce1SZhang, Yanmin 7238115d60cSArnaldo Carvalho de Melo if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) 7248c3e10ebSArnaldo Carvalho de Melo top.exact_samples++; 7251676b8a0SPeter Zijlstra 7268115d60cSArnaldo Carvalho de Melo if (perf_event__preprocess_sample(event, session, &al, sample, 72741a37e20SArnaldo Carvalho de Melo symbol_filter) < 0 || 72872b8fa17SArnaldo Carvalho de Melo al.filtered) 7291ed091c4SArnaldo Carvalho de Melo return; 73086470930SIngo Molnar 7315f6f5580SArnaldo Carvalho de Melo if (!kptr_restrict_warned && 7325f6f5580SArnaldo Carvalho de Melo symbol_conf.kptr_restrict && 7335f6f5580SArnaldo Carvalho de Melo al.cpumode == PERF_RECORD_MISC_KERNEL) { 7345f6f5580SArnaldo Carvalho de Melo ui__warning( 7355f6f5580SArnaldo Carvalho de Melo "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" 7365f6f5580SArnaldo Carvalho de Melo "Check /proc/sys/kernel/kptr_restrict.\n\n" 7375f6f5580SArnaldo Carvalho de Melo "Kernel%s samples will not be resolved.\n", 7385f6f5580SArnaldo Carvalho de Melo !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? 7395f6f5580SArnaldo Carvalho de Melo " modules" : ""); 7405f6f5580SArnaldo Carvalho de Melo if (use_browser <= 0) 7415f6f5580SArnaldo Carvalho de Melo sleep(5); 7425f6f5580SArnaldo Carvalho de Melo kptr_restrict_warned = true; 7435f6f5580SArnaldo Carvalho de Melo } 7445f6f5580SArnaldo Carvalho de Melo 74572b8fa17SArnaldo Carvalho de Melo if (al.sym == NULL) { 746e4a338d0SArnaldo Carvalho de Melo const char *msg = "Kernel samples will not be resolved.\n"; 74772b8fa17SArnaldo Carvalho de Melo /* 74872b8fa17SArnaldo Carvalho de Melo * As we do lazy loading of symtabs we only will know if the 74972b8fa17SArnaldo Carvalho de Melo * specified vmlinux file is invalid when we actually have a 75072b8fa17SArnaldo Carvalho de Melo * hit in kernel space and then try to load it. So if we get 75172b8fa17SArnaldo Carvalho de Melo * here and there are _no_ symbols in the DSO backing the 75272b8fa17SArnaldo Carvalho de Melo * kernel map, bail out. 75372b8fa17SArnaldo Carvalho de Melo * 75472b8fa17SArnaldo Carvalho de Melo * We may never get here, for instance, if we use -K/ 75572b8fa17SArnaldo Carvalho de Melo * --hide-kernel-symbols, even if the user specifies an 75672b8fa17SArnaldo Carvalho de Melo * invalid --vmlinux ;-) 75772b8fa17SArnaldo Carvalho de Melo */ 758e4a338d0SArnaldo Carvalho de Melo if (!kptr_restrict_warned && !vmlinux_warned && 759e4a338d0SArnaldo Carvalho de Melo al.map == machine->vmlinux_maps[MAP__FUNCTION] && 76072b8fa17SArnaldo Carvalho de Melo RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { 761e4a338d0SArnaldo Carvalho de Melo if (symbol_conf.vmlinux_name) { 762e4a338d0SArnaldo Carvalho de Melo ui__warning("The %s file can't be used.\n%s", 763e4a338d0SArnaldo Carvalho de Melo symbol_conf.vmlinux_name, msg); 764e4a338d0SArnaldo Carvalho de Melo } else { 765e4a338d0SArnaldo Carvalho de Melo ui__warning("A vmlinux file was not found.\n%s", 766e4a338d0SArnaldo Carvalho de Melo msg); 767e4a338d0SArnaldo Carvalho de Melo } 768e4a338d0SArnaldo Carvalho de Melo 769e4a338d0SArnaldo Carvalho de Melo if (use_browser <= 0) 770e4a338d0SArnaldo Carvalho de Melo sleep(5); 771e4a338d0SArnaldo Carvalho de Melo vmlinux_warned = true; 77272b8fa17SArnaldo Carvalho de Melo } 77372b8fa17SArnaldo Carvalho de Melo } 77472b8fa17SArnaldo Carvalho de Melo 775ab81f3fdSArnaldo Carvalho de Melo if (al.sym == NULL || !al.sym->ignore) { 776ab81f3fdSArnaldo Carvalho de Melo struct hist_entry *he; 77770db7533SArnaldo Carvalho de Melo 77819d4ac3cSArnaldo Carvalho de Melo if ((sort__has_parent || symbol_conf.use_callchain) && 77919d4ac3cSArnaldo Carvalho de Melo sample->callchain) { 780246d4ce8SArnaldo Carvalho de Melo err = perf_session__resolve_callchain(session, evsel, al.thread, 78119d4ac3cSArnaldo Carvalho de Melo sample->callchain, &parent); 78219d4ac3cSArnaldo Carvalho de Melo if (err) 78319d4ac3cSArnaldo Carvalho de Melo return; 78419d4ac3cSArnaldo Carvalho de Melo } 78519d4ac3cSArnaldo Carvalho de Melo 786ab81f3fdSArnaldo Carvalho de Melo he = perf_session__add_hist_entry(session, &al, sample, evsel); 787ab81f3fdSArnaldo Carvalho de Melo if (he == NULL) { 788ab81f3fdSArnaldo Carvalho de Melo pr_err("Problem incrementing symbol period, skipping event\n"); 789ab81f3fdSArnaldo Carvalho de Melo return; 7905807806aSArnaldo Carvalho de Melo } 791ab81f3fdSArnaldo Carvalho de Melo 79219d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) { 793246d4ce8SArnaldo Carvalho de Melo err = callchain_append(he->callchain, &evsel->hists.callchain_cursor, 79419d4ac3cSArnaldo Carvalho de Melo sample->period); 79519d4ac3cSArnaldo Carvalho de Melo if (err) 79619d4ac3cSArnaldo Carvalho de Melo return; 79719d4ac3cSArnaldo Carvalho de Melo } 79819d4ac3cSArnaldo Carvalho de Melo 79919d4ac3cSArnaldo Carvalho de Melo if (sort_has_symbols) 800ab81f3fdSArnaldo Carvalho de Melo record_precise_ip(he, evsel->idx, ip); 8015807806aSArnaldo Carvalho de Melo } 802ab81f3fdSArnaldo Carvalho de Melo 803ab81f3fdSArnaldo Carvalho de Melo return; 80486470930SIngo Molnar } 80586470930SIngo Molnar 806aece948fSArnaldo Carvalho de Melo static void perf_session__mmap_read_idx(struct perf_session *self, int idx) 80786470930SIngo Molnar { 8088d50e5b4SArnaldo Carvalho de Melo struct perf_sample sample; 8097b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel; 8108115d60cSArnaldo Carvalho de Melo union perf_event *event; 8115538becaSFrederic Weisbecker int ret; 81286470930SIngo Molnar 813aece948fSArnaldo Carvalho de Melo while ((event = perf_evlist__mmap_read(top.evlist, idx)) != NULL) { 8145538becaSFrederic Weisbecker ret = perf_session__parse_sample(self, event, &sample); 8155538becaSFrederic Weisbecker if (ret) { 8165538becaSFrederic Weisbecker pr_err("Can't parse sample, err = %d\n", ret); 8175538becaSFrederic Weisbecker continue; 8185538becaSFrederic Weisbecker } 81904391debSArnaldo Carvalho de Melo 8207b27509fSArnaldo Carvalho de Melo evsel = perf_evlist__id2evsel(self->evlist, sample.id); 8217b27509fSArnaldo Carvalho de Melo assert(evsel != NULL); 8227b27509fSArnaldo Carvalho de Melo 8235b2bb75aSArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) 8247b27509fSArnaldo Carvalho de Melo perf_event__process_sample(event, evsel, &sample, self); 8257b27509fSArnaldo Carvalho de Melo else if (event->header.type < PERF_RECORD_MAX) { 8267b27509fSArnaldo Carvalho de Melo hists__inc_nr_events(&evsel->hists, event->header.type); 8278115d60cSArnaldo Carvalho de Melo perf_event__process(event, &sample, self); 8287b27509fSArnaldo Carvalho de Melo } else 8297b27509fSArnaldo Carvalho de Melo ++self->hists.stats.nr_unknown_events; 83086470930SIngo Molnar } 83186470930SIngo Molnar } 83286470930SIngo Molnar 833d8f66248SArnaldo Carvalho de Melo static void perf_session__mmap_read(struct perf_session *self) 8342f01190aSFrederic Weisbecker { 83570db7533SArnaldo Carvalho de Melo int i; 8362f01190aSFrederic Weisbecker 837aece948fSArnaldo Carvalho de Melo for (i = 0; i < top.evlist->nr_mmaps; i++) 838aece948fSArnaldo Carvalho de Melo perf_session__mmap_read_idx(self, i); 8392f01190aSFrederic Weisbecker } 8402f01190aSFrederic Weisbecker 84172cb7013SArnaldo Carvalho de Melo static void start_counters(struct perf_evlist *evlist) 84272cb7013SArnaldo Carvalho de Melo { 843727ab04eSArnaldo Carvalho de Melo struct perf_evsel *counter, *first; 844727ab04eSArnaldo Carvalho de Melo 845727ab04eSArnaldo Carvalho de Melo first = list_entry(evlist->entries.next, struct perf_evsel, node); 84672cb7013SArnaldo Carvalho de Melo 84772cb7013SArnaldo Carvalho de Melo list_for_each_entry(counter, &evlist->entries, node) { 84872cb7013SArnaldo Carvalho de Melo struct perf_event_attr *attr = &counter->attr; 849727ab04eSArnaldo Carvalho de Melo struct xyarray *group_fd = NULL; 850727ab04eSArnaldo Carvalho de Melo 851727ab04eSArnaldo Carvalho de Melo if (group && counter != first) 852727ab04eSArnaldo Carvalho de Melo group_fd = first->fd; 85372cb7013SArnaldo Carvalho de Melo 85472cb7013SArnaldo Carvalho de Melo attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID; 85572cb7013SArnaldo Carvalho de Melo 8568c3e10ebSArnaldo Carvalho de Melo if (top.freq) { 85772cb7013SArnaldo Carvalho de Melo attr->sample_type |= PERF_SAMPLE_PERIOD; 85872cb7013SArnaldo Carvalho de Melo attr->freq = 1; 8598c3e10ebSArnaldo Carvalho de Melo attr->sample_freq = top.freq; 86072cb7013SArnaldo Carvalho de Melo } 86172cb7013SArnaldo Carvalho de Melo 86270db7533SArnaldo Carvalho de Melo if (evlist->nr_entries > 1) { 86370db7533SArnaldo Carvalho de Melo attr->sample_type |= PERF_SAMPLE_ID; 86470db7533SArnaldo Carvalho de Melo attr->read_format |= PERF_FORMAT_ID; 86570db7533SArnaldo Carvalho de Melo } 86670db7533SArnaldo Carvalho de Melo 86719d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) 86819d4ac3cSArnaldo Carvalho de Melo attr->sample_type |= PERF_SAMPLE_CALLCHAIN; 86919d4ac3cSArnaldo Carvalho de Melo 87072cb7013SArnaldo Carvalho de Melo attr->mmap = 1; 871ab81f3fdSArnaldo Carvalho de Melo attr->comm = 1; 8725d2cd909SArnaldo Carvalho de Melo attr->inherit = inherit; 8737b27509fSArnaldo Carvalho de Melo retry_sample_id: 8747b27509fSArnaldo Carvalho de Melo attr->sample_id_all = sample_id_all_avail ? 1 : 0; 87572cb7013SArnaldo Carvalho de Melo try_again: 8768c3e10ebSArnaldo Carvalho de Melo if (perf_evsel__open(counter, top.evlist->cpus, 877727ab04eSArnaldo Carvalho de Melo top.evlist->threads, group, 878727ab04eSArnaldo Carvalho de Melo group_fd) < 0) { 87972cb7013SArnaldo Carvalho de Melo int err = errno; 88072cb7013SArnaldo Carvalho de Melo 881c286c419SArnaldo Carvalho de Melo if (err == EPERM || err == EACCES) { 882b8631e6eSArnaldo Carvalho de Melo ui__error_paranoid(); 883c286c419SArnaldo Carvalho de Melo goto out_err; 8847b27509fSArnaldo Carvalho de Melo } else if (err == EINVAL && sample_id_all_avail) { 8857b27509fSArnaldo Carvalho de Melo /* 8867b27509fSArnaldo Carvalho de Melo * Old kernel, no attr->sample_id_type_all field 8877b27509fSArnaldo Carvalho de Melo */ 8887b27509fSArnaldo Carvalho de Melo sample_id_all_avail = false; 8897b27509fSArnaldo Carvalho de Melo goto retry_sample_id; 890c286c419SArnaldo Carvalho de Melo } 89172cb7013SArnaldo Carvalho de Melo /* 89272cb7013SArnaldo Carvalho de Melo * If it's cycles then fall back to hrtimer 89372cb7013SArnaldo Carvalho de Melo * based cpu-clock-tick sw counter, which 89472cb7013SArnaldo Carvalho de Melo * is always available even if no PMU support: 89572cb7013SArnaldo Carvalho de Melo */ 89672cb7013SArnaldo Carvalho de Melo if (attr->type == PERF_TYPE_HARDWARE && 89772cb7013SArnaldo Carvalho de Melo attr->config == PERF_COUNT_HW_CPU_CYCLES) { 89872cb7013SArnaldo Carvalho de Melo if (verbose) 899c286c419SArnaldo Carvalho de Melo ui__warning("Cycles event not supported,\n" 900c286c419SArnaldo Carvalho de Melo "trying to fall back to cpu-clock-ticks\n"); 90172cb7013SArnaldo Carvalho de Melo 90272cb7013SArnaldo Carvalho de Melo attr->type = PERF_TYPE_SOFTWARE; 90372cb7013SArnaldo Carvalho de Melo attr->config = PERF_COUNT_SW_CPU_CLOCK; 90472cb7013SArnaldo Carvalho de Melo goto try_again; 90572cb7013SArnaldo Carvalho de Melo } 906c286c419SArnaldo Carvalho de Melo 907ca6a4258SDavid Ahern if (err == ENOENT) { 908ca6a4258SDavid Ahern ui__warning("The %s event is not supported.\n", 909ca6a4258SDavid Ahern event_name(counter)); 910ca6a4258SDavid Ahern goto out_err; 911ca6a4258SDavid Ahern } 912ca6a4258SDavid Ahern 913c286c419SArnaldo Carvalho de Melo ui__warning("The sys_perf_event_open() syscall " 914c286c419SArnaldo Carvalho de Melo "returned with %d (%s). /bin/dmesg " 915c286c419SArnaldo Carvalho de Melo "may provide additional information.\n" 916c286c419SArnaldo Carvalho de Melo "No CONFIG_PERF_EVENTS=y kernel support " 917c286c419SArnaldo Carvalho de Melo "configured?\n", err, strerror(err)); 918c286c419SArnaldo Carvalho de Melo goto out_err; 91972cb7013SArnaldo Carvalho de Melo } 92072cb7013SArnaldo Carvalho de Melo } 92170db7533SArnaldo Carvalho de Melo 922c286c419SArnaldo Carvalho de Melo if (perf_evlist__mmap(evlist, mmap_pages, false) < 0) { 923c286c419SArnaldo Carvalho de Melo ui__warning("Failed to mmap with %d (%s)\n", 924c286c419SArnaldo Carvalho de Melo errno, strerror(errno)); 925c286c419SArnaldo Carvalho de Melo goto out_err; 926c286c419SArnaldo Carvalho de Melo } 927c286c419SArnaldo Carvalho de Melo 928c286c419SArnaldo Carvalho de Melo return; 929c286c419SArnaldo Carvalho de Melo 930c286c419SArnaldo Carvalho de Melo out_err: 931c286c419SArnaldo Carvalho de Melo exit_browser(0); 932c286c419SArnaldo Carvalho de Melo exit(0); 93372cb7013SArnaldo Carvalho de Melo } 93472cb7013SArnaldo Carvalho de Melo 93519d4ac3cSArnaldo Carvalho de Melo static int setup_sample_type(void) 93619d4ac3cSArnaldo Carvalho de Melo { 93719d4ac3cSArnaldo Carvalho de Melo if (!sort_has_symbols) { 93819d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) { 93919d4ac3cSArnaldo Carvalho de Melo ui__warning("Selected -g but \"sym\" not present in --sort/-s."); 94019d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 94119d4ac3cSArnaldo Carvalho de Melo } 94219d4ac3cSArnaldo Carvalho de Melo } else if (!dont_use_callchains && callchain_param.mode != CHAIN_NONE) { 94319d4ac3cSArnaldo Carvalho de Melo if (callchain_register_param(&callchain_param) < 0) { 94419d4ac3cSArnaldo Carvalho de Melo ui__warning("Can't register callchain params.\n"); 94519d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 94619d4ac3cSArnaldo Carvalho de Melo } 94719d4ac3cSArnaldo Carvalho de Melo } 94819d4ac3cSArnaldo Carvalho de Melo 94919d4ac3cSArnaldo Carvalho de Melo return 0; 95019d4ac3cSArnaldo Carvalho de Melo } 95119d4ac3cSArnaldo Carvalho de Melo 952716c69feSIngo Molnar static int __cmd_top(void) 953716c69feSIngo Molnar { 954716c69feSIngo Molnar pthread_t thread; 95519d4ac3cSArnaldo Carvalho de Melo int ret; 956d8f66248SArnaldo Carvalho de Melo /* 957b3165f41SArnaldo Carvalho de Melo * FIXME: perf_session__new should allow passing a O_MMAP, so that all this 958b3165f41SArnaldo Carvalho de Melo * mmap reading, etc is encapsulated in it. Use O_WRONLY for now. 959d8f66248SArnaldo Carvalho de Melo */ 960dcc101d1SArnaldo Carvalho de Melo top.session = perf_session__new(NULL, O_WRONLY, false, false, NULL); 961dcc101d1SArnaldo Carvalho de Melo if (top.session == NULL) 962b3165f41SArnaldo Carvalho de Melo return -ENOMEM; 963716c69feSIngo Molnar 96419d4ac3cSArnaldo Carvalho de Melo ret = setup_sample_type(); 96519d4ac3cSArnaldo Carvalho de Melo if (ret) 96619d4ac3cSArnaldo Carvalho de Melo goto out_delete; 96719d4ac3cSArnaldo Carvalho de Melo 9688c3e10ebSArnaldo Carvalho de Melo if (top.target_tid != -1) 9697c940c18SArnaldo Carvalho de Melo perf_event__synthesize_thread_map(top.evlist->threads, 970dcc101d1SArnaldo Carvalho de Melo perf_event__process, top.session); 9715b2bb75aSArnaldo Carvalho de Melo else 972dcc101d1SArnaldo Carvalho de Melo perf_event__synthesize_threads(perf_event__process, top.session); 9735b2bb75aSArnaldo Carvalho de Melo 9748c3e10ebSArnaldo Carvalho de Melo start_counters(top.evlist); 975dcc101d1SArnaldo Carvalho de Melo top.session->evlist = top.evlist; 976dcc101d1SArnaldo Carvalho de Melo perf_session__update_sample_type(top.session); 97786470930SIngo Molnar 9782f01190aSFrederic Weisbecker /* Wait for a minimal set of events before starting the snapshot */ 9798c3e10ebSArnaldo Carvalho de Melo poll(top.evlist->pollfd, top.evlist->nr_fds, 100); 9802f01190aSFrederic Weisbecker 981dcc101d1SArnaldo Carvalho de Melo perf_session__mmap_read(top.session); 9822f01190aSFrederic Weisbecker 983c0443df1SArnaldo Carvalho de Melo if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : 984dcc101d1SArnaldo Carvalho de Melo display_thread), NULL)) { 98586470930SIngo Molnar printf("Could not create display thread.\n"); 98686470930SIngo Molnar exit(-1); 98786470930SIngo Molnar } 98886470930SIngo Molnar 98986470930SIngo Molnar if (realtime_prio) { 99086470930SIngo Molnar struct sched_param param; 99186470930SIngo Molnar 99286470930SIngo Molnar param.sched_priority = realtime_prio; 99386470930SIngo Molnar if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { 99486470930SIngo Molnar printf("Could not set realtime priority.\n"); 99586470930SIngo Molnar exit(-1); 99686470930SIngo Molnar } 99786470930SIngo Molnar } 99886470930SIngo Molnar 99986470930SIngo Molnar while (1) { 10008c3e10ebSArnaldo Carvalho de Melo u64 hits = top.samples; 100186470930SIngo Molnar 1002dcc101d1SArnaldo Carvalho de Melo perf_session__mmap_read(top.session); 100386470930SIngo Molnar 10048c3e10ebSArnaldo Carvalho de Melo if (hits == top.samples) 10058c3e10ebSArnaldo Carvalho de Melo ret = poll(top.evlist->pollfd, top.evlist->nr_fds, 100); 100686470930SIngo Molnar } 100786470930SIngo Molnar 100819d4ac3cSArnaldo Carvalho de Melo out_delete: 100919d4ac3cSArnaldo Carvalho de Melo perf_session__delete(top.session); 101019d4ac3cSArnaldo Carvalho de Melo top.session = NULL; 101119d4ac3cSArnaldo Carvalho de Melo 101219d4ac3cSArnaldo Carvalho de Melo return 0; 101319d4ac3cSArnaldo Carvalho de Melo } 101419d4ac3cSArnaldo Carvalho de Melo 101519d4ac3cSArnaldo Carvalho de Melo static int 101619d4ac3cSArnaldo Carvalho de Melo parse_callchain_opt(const struct option *opt __used, const char *arg, 101719d4ac3cSArnaldo Carvalho de Melo int unset) 101819d4ac3cSArnaldo Carvalho de Melo { 101919d4ac3cSArnaldo Carvalho de Melo char *tok, *tok2; 102019d4ac3cSArnaldo Carvalho de Melo char *endptr; 102119d4ac3cSArnaldo Carvalho de Melo 102219d4ac3cSArnaldo Carvalho de Melo /* 102319d4ac3cSArnaldo Carvalho de Melo * --no-call-graph 102419d4ac3cSArnaldo Carvalho de Melo */ 102519d4ac3cSArnaldo Carvalho de Melo if (unset) { 102619d4ac3cSArnaldo Carvalho de Melo dont_use_callchains = true; 102719d4ac3cSArnaldo Carvalho de Melo return 0; 102819d4ac3cSArnaldo Carvalho de Melo } 102919d4ac3cSArnaldo Carvalho de Melo 103019d4ac3cSArnaldo Carvalho de Melo symbol_conf.use_callchain = true; 103119d4ac3cSArnaldo Carvalho de Melo 103219d4ac3cSArnaldo Carvalho de Melo if (!arg) 103319d4ac3cSArnaldo Carvalho de Melo return 0; 103419d4ac3cSArnaldo Carvalho de Melo 103519d4ac3cSArnaldo Carvalho de Melo tok = strtok((char *)arg, ","); 103619d4ac3cSArnaldo Carvalho de Melo if (!tok) 103719d4ac3cSArnaldo Carvalho de Melo return -1; 103819d4ac3cSArnaldo Carvalho de Melo 103919d4ac3cSArnaldo Carvalho de Melo /* get the output mode */ 104019d4ac3cSArnaldo Carvalho de Melo if (!strncmp(tok, "graph", strlen(arg))) 104119d4ac3cSArnaldo Carvalho de Melo callchain_param.mode = CHAIN_GRAPH_ABS; 104219d4ac3cSArnaldo Carvalho de Melo 104319d4ac3cSArnaldo Carvalho de Melo else if (!strncmp(tok, "flat", strlen(arg))) 104419d4ac3cSArnaldo Carvalho de Melo callchain_param.mode = CHAIN_FLAT; 104519d4ac3cSArnaldo Carvalho de Melo 104619d4ac3cSArnaldo Carvalho de Melo else if (!strncmp(tok, "fractal", strlen(arg))) 104719d4ac3cSArnaldo Carvalho de Melo callchain_param.mode = CHAIN_GRAPH_REL; 104819d4ac3cSArnaldo Carvalho de Melo 104919d4ac3cSArnaldo Carvalho de Melo else if (!strncmp(tok, "none", strlen(arg))) { 105019d4ac3cSArnaldo Carvalho de Melo callchain_param.mode = CHAIN_NONE; 105119d4ac3cSArnaldo Carvalho de Melo symbol_conf.use_callchain = false; 105219d4ac3cSArnaldo Carvalho de Melo 105319d4ac3cSArnaldo Carvalho de Melo return 0; 105419d4ac3cSArnaldo Carvalho de Melo } 105519d4ac3cSArnaldo Carvalho de Melo 105619d4ac3cSArnaldo Carvalho de Melo else 105719d4ac3cSArnaldo Carvalho de Melo return -1; 105819d4ac3cSArnaldo Carvalho de Melo 105919d4ac3cSArnaldo Carvalho de Melo /* get the min percentage */ 106019d4ac3cSArnaldo Carvalho de Melo tok = strtok(NULL, ","); 106119d4ac3cSArnaldo Carvalho de Melo if (!tok) 106219d4ac3cSArnaldo Carvalho de Melo goto setup; 106319d4ac3cSArnaldo Carvalho de Melo 106419d4ac3cSArnaldo Carvalho de Melo callchain_param.min_percent = strtod(tok, &endptr); 106519d4ac3cSArnaldo Carvalho de Melo if (tok == endptr) 106619d4ac3cSArnaldo Carvalho de Melo return -1; 106719d4ac3cSArnaldo Carvalho de Melo 106819d4ac3cSArnaldo Carvalho de Melo /* get the print limit */ 106919d4ac3cSArnaldo Carvalho de Melo tok2 = strtok(NULL, ","); 107019d4ac3cSArnaldo Carvalho de Melo if (!tok2) 107119d4ac3cSArnaldo Carvalho de Melo goto setup; 107219d4ac3cSArnaldo Carvalho de Melo 107319d4ac3cSArnaldo Carvalho de Melo if (tok2[0] != 'c') { 107419d4ac3cSArnaldo Carvalho de Melo callchain_param.print_limit = strtod(tok2, &endptr); 107519d4ac3cSArnaldo Carvalho de Melo tok2 = strtok(NULL, ","); 107619d4ac3cSArnaldo Carvalho de Melo if (!tok2) 107719d4ac3cSArnaldo Carvalho de Melo goto setup; 107819d4ac3cSArnaldo Carvalho de Melo } 107919d4ac3cSArnaldo Carvalho de Melo 108019d4ac3cSArnaldo Carvalho de Melo /* get the call chain order */ 108119d4ac3cSArnaldo Carvalho de Melo if (!strcmp(tok2, "caller")) 108219d4ac3cSArnaldo Carvalho de Melo callchain_param.order = ORDER_CALLER; 108319d4ac3cSArnaldo Carvalho de Melo else if (!strcmp(tok2, "callee")) 108419d4ac3cSArnaldo Carvalho de Melo callchain_param.order = ORDER_CALLEE; 108519d4ac3cSArnaldo Carvalho de Melo else 108619d4ac3cSArnaldo Carvalho de Melo return -1; 108719d4ac3cSArnaldo Carvalho de Melo setup: 108819d4ac3cSArnaldo Carvalho de Melo if (callchain_register_param(&callchain_param) < 0) { 108919d4ac3cSArnaldo Carvalho de Melo fprintf(stderr, "Can't register callchain params\n"); 109019d4ac3cSArnaldo Carvalho de Melo return -1; 109119d4ac3cSArnaldo Carvalho de Melo } 109286470930SIngo Molnar return 0; 109386470930SIngo Molnar } 109486470930SIngo Molnar 109586470930SIngo Molnar static const char * const top_usage[] = { 109686470930SIngo Molnar "perf top [<options>]", 109786470930SIngo Molnar NULL 109886470930SIngo Molnar }; 109986470930SIngo Molnar 110086470930SIngo Molnar static const struct option options[] = { 11018c3e10ebSArnaldo Carvalho de Melo OPT_CALLBACK('e', "event", &top.evlist, "event", 110286470930SIngo Molnar "event selector. use 'perf list' to list available events", 1103f120f9d5SJiri Olsa parse_events_option), 110486470930SIngo Molnar OPT_INTEGER('c', "count", &default_interval, 110586470930SIngo Molnar "event period to sample"), 11068c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('p', "pid", &top.target_pid, 1107d6d901c2SZhang, Yanmin "profile events on existing process id"), 11088c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('t', "tid", &top.target_tid, 1109d6d901c2SZhang, Yanmin "profile events on existing thread id"), 111086470930SIngo Molnar OPT_BOOLEAN('a', "all-cpus", &system_wide, 111186470930SIngo Molnar "system-wide collection from all CPUs"), 11128c3e10ebSArnaldo Carvalho de Melo OPT_STRING('C', "cpu", &top.cpu_list, "cpu", 1113c45c6ea2SStephane Eranian "list of cpus to monitor"), 1114b32d133aSArnaldo Carvalho de Melo OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1115b32d133aSArnaldo Carvalho de Melo "file", "vmlinux pathname"), 11168c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, 11178ffcda17SArnaldo Carvalho de Melo "hide kernel symbols"), 11181967936dSArnaldo Carvalho de Melo OPT_UINTEGER('m', "mmap-pages", &mmap_pages, "number of mmap data pages"), 111986470930SIngo Molnar OPT_INTEGER('r', "realtime", &realtime_prio, 112086470930SIngo Molnar "collect data with this RT SCHED_FIFO priority"), 11218c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('d', "delay", &top.delay_secs, 112286470930SIngo Molnar "number of seconds to delay between refreshes"), 112386470930SIngo Molnar OPT_BOOLEAN('D', "dump-symtab", &dump_symtab, 112486470930SIngo Molnar "dump the symbol table used for profiling"), 11258c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('f', "count-filter", &top.count_filter, 112686470930SIngo Molnar "only display functions with more events than this"), 112786470930SIngo Molnar OPT_BOOLEAN('g', "group", &group, 112886470930SIngo Molnar "put the counters into a counter group"), 11290fdc7e67SMike Galbraith OPT_BOOLEAN('i', "inherit", &inherit, 11300fdc7e67SMike Galbraith "child tasks inherit counters"), 1131ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "sym-annotate", &sym_filter, "symbol name", 11326cff0e8dSKirill Smelkov "symbol to annotate"), 11338c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('z', "zero", &top.zero, 113486470930SIngo Molnar "zero history across updates"), 11358c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('F', "freq", &top.freq, 113686470930SIngo Molnar "profile at this frequency"), 11378c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('E', "entries", &top.print_entries, 113886470930SIngo Molnar "display this many functions"), 11398c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, 11408ffcda17SArnaldo Carvalho de Melo "hide user symbols"), 1141c0443df1SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "tui", &use_tui, "Use the TUI interface"), 1142c0443df1SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "stdio", &use_stdio, "Use the stdio interface"), 1143c0555642SIan Munsie OPT_INCR('v', "verbose", &verbose, 11443da297a6SIngo Molnar "be more verbose (show counter open errors, etc)"), 1145ab81f3fdSArnaldo Carvalho de Melo OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 1146ab81f3fdSArnaldo Carvalho de Melo "sort by key(s): pid, comm, dso, symbol, parent"), 1147ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 1148ab81f3fdSArnaldo Carvalho de Melo "Show a column with the number of samples"), 114919d4ac3cSArnaldo Carvalho de Melo OPT_CALLBACK_DEFAULT('G', "call-graph", NULL, "output_type,min_percent, call_order", 115019d4ac3cSArnaldo Carvalho de Melo "Display callchains using output_type (graph, flat, fractal, or none), min percent threshold and callchain order. " 115119d4ac3cSArnaldo Carvalho de Melo "Default: fractal,0.5,callee", &parse_callchain_opt, 115219d4ac3cSArnaldo Carvalho de Melo callchain_default_opt), 1153ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 1154ab81f3fdSArnaldo Carvalho de Melo "Show a column with the sum of periods"), 1155ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 1156ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these dsos"), 1157ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1158ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these comms"), 1159ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1160ab81f3fdSArnaldo Carvalho de Melo "only consider these symbols"), 116164c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, 116264c6f0c7SArnaldo Carvalho de Melo "Interleave source code with assembly code (default)"), 116364c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, 116464c6f0c7SArnaldo Carvalho de Melo "Display raw encoding of assembly instructions (default)"), 116564c6f0c7SArnaldo Carvalho de Melo OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", 116664c6f0c7SArnaldo Carvalho de Melo "Specify disassembler style (e.g. -M intel for intel syntax)"), 116786470930SIngo Molnar OPT_END() 116886470930SIngo Molnar }; 116986470930SIngo Molnar 1170f37a291cSIngo Molnar int cmd_top(int argc, const char **argv, const char *prefix __used) 117186470930SIngo Molnar { 117269aad6f1SArnaldo Carvalho de Melo struct perf_evsel *pos; 117369aad6f1SArnaldo Carvalho de Melo int status = -ENOMEM; 117486470930SIngo Molnar 11758c3e10ebSArnaldo Carvalho de Melo top.evlist = perf_evlist__new(NULL, NULL); 11768c3e10ebSArnaldo Carvalho de Melo if (top.evlist == NULL) 1177361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1178361c99a6SArnaldo Carvalho de Melo 1179ab81f3fdSArnaldo Carvalho de Melo symbol_conf.exclude_other = false; 118086470930SIngo Molnar 118186470930SIngo Molnar argc = parse_options(argc, argv, options, top_usage, 0); 118286470930SIngo Molnar if (argc) 118386470930SIngo Molnar usage_with_options(top_usage, options); 118486470930SIngo Molnar 1185ab81f3fdSArnaldo Carvalho de Melo if (sort_order == default_sort_order) 1186ab81f3fdSArnaldo Carvalho de Melo sort_order = "dso,symbol"; 1187ab81f3fdSArnaldo Carvalho de Melo 1188ab81f3fdSArnaldo Carvalho de Melo setup_sorting(top_usage, options); 1189ab81f3fdSArnaldo Carvalho de Melo 1190c0443df1SArnaldo Carvalho de Melo if (use_stdio) 1191c0443df1SArnaldo Carvalho de Melo use_browser = 0; 1192c0443df1SArnaldo Carvalho de Melo else if (use_tui) 1193c0443df1SArnaldo Carvalho de Melo use_browser = 1; 1194c0443df1SArnaldo Carvalho de Melo 1195c0443df1SArnaldo Carvalho de Melo setup_browser(false); 1196c0443df1SArnaldo Carvalho de Melo 119786470930SIngo Molnar /* CPU and PID are mutually exclusive */ 11988c3e10ebSArnaldo Carvalho de Melo if (top.target_tid > 0 && top.cpu_list) { 119986470930SIngo Molnar printf("WARNING: PID switch overriding CPU\n"); 120086470930SIngo Molnar sleep(1); 12018c3e10ebSArnaldo Carvalho de Melo top.cpu_list = NULL; 120286470930SIngo Molnar } 120386470930SIngo Molnar 12048c3e10ebSArnaldo Carvalho de Melo if (top.target_pid != -1) 12058c3e10ebSArnaldo Carvalho de Melo top.target_tid = top.target_pid; 12067e2ed097SArnaldo Carvalho de Melo 12078c3e10ebSArnaldo Carvalho de Melo if (perf_evlist__create_maps(top.evlist, top.target_pid, 12088c3e10ebSArnaldo Carvalho de Melo top.target_tid, top.cpu_list) < 0) 12097e2ed097SArnaldo Carvalho de Melo usage_with_options(top_usage, options); 12107e2ed097SArnaldo Carvalho de Melo 12118c3e10ebSArnaldo Carvalho de Melo if (!top.evlist->nr_entries && 12128c3e10ebSArnaldo Carvalho de Melo perf_evlist__add_default(top.evlist) < 0) { 121369aad6f1SArnaldo Carvalho de Melo pr_err("Not enough memory for event selector list\n"); 121469aad6f1SArnaldo Carvalho de Melo return -ENOMEM; 121569aad6f1SArnaldo Carvalho de Melo } 12165a8e5a30SArnaldo Carvalho de Melo 1217d04b35f8SArnaldo Carvalho de Melo symbol_conf.nr_events = top.evlist->nr_entries; 1218d04b35f8SArnaldo Carvalho de Melo 12198c3e10ebSArnaldo Carvalho de Melo if (top.delay_secs < 1) 12208c3e10ebSArnaldo Carvalho de Melo top.delay_secs = 1; 122186470930SIngo Molnar 12227e4ff9e3SMike Galbraith /* 12237e4ff9e3SMike Galbraith * User specified count overrides default frequency. 12247e4ff9e3SMike Galbraith */ 12257e4ff9e3SMike Galbraith if (default_interval) 12268c3e10ebSArnaldo Carvalho de Melo top.freq = 0; 12278c3e10ebSArnaldo Carvalho de Melo else if (top.freq) { 12288c3e10ebSArnaldo Carvalho de Melo default_interval = top.freq; 12297e4ff9e3SMike Galbraith } else { 12307e4ff9e3SMike Galbraith fprintf(stderr, "frequency and count are zero, aborting\n"); 12317e4ff9e3SMike Galbraith exit(EXIT_FAILURE); 12327e4ff9e3SMike Galbraith } 12337e4ff9e3SMike Galbraith 12348c3e10ebSArnaldo Carvalho de Melo list_for_each_entry(pos, &top.evlist->entries, node) { 12358c3e10ebSArnaldo Carvalho de Melo if (perf_evsel__alloc_fd(pos, top.evlist->cpus->nr, 12368c3e10ebSArnaldo Carvalho de Melo top.evlist->threads->nr) < 0) 123769aad6f1SArnaldo Carvalho de Melo goto out_free_fd; 123869aad6f1SArnaldo Carvalho de Melo /* 123969aad6f1SArnaldo Carvalho de Melo * Fill in the ones not specifically initialized via -c: 124069aad6f1SArnaldo Carvalho de Melo */ 124169aad6f1SArnaldo Carvalho de Melo if (pos->attr.sample_period) 124269aad6f1SArnaldo Carvalho de Melo continue; 124369aad6f1SArnaldo Carvalho de Melo 124469aad6f1SArnaldo Carvalho de Melo pos->attr.sample_period = default_interval; 124569aad6f1SArnaldo Carvalho de Melo } 124669aad6f1SArnaldo Carvalho de Melo 12478c3e10ebSArnaldo Carvalho de Melo if (perf_evlist__alloc_pollfd(top.evlist) < 0 || 12488c3e10ebSArnaldo Carvalho de Melo perf_evlist__alloc_mmap(top.evlist) < 0) 12495c581041SArnaldo Carvalho de Melo goto out_free_fd; 12505c581041SArnaldo Carvalho de Melo 12518c3e10ebSArnaldo Carvalho de Melo top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); 1252cc841580SArnaldo Carvalho de Melo 1253ab81f3fdSArnaldo Carvalho de Melo symbol_conf.priv_size = sizeof(struct annotation); 125469aad6f1SArnaldo Carvalho de Melo 125569aad6f1SArnaldo Carvalho de Melo symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); 125669aad6f1SArnaldo Carvalho de Melo if (symbol__init() < 0) 125769aad6f1SArnaldo Carvalho de Melo return -1; 125869aad6f1SArnaldo Carvalho de Melo 1259ab81f3fdSArnaldo Carvalho de Melo sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout); 1260ab81f3fdSArnaldo Carvalho de Melo sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout); 1261ab81f3fdSArnaldo Carvalho de Melo sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout); 1262ab81f3fdSArnaldo Carvalho de Melo 126319d4ac3cSArnaldo Carvalho de Melo /* 126419d4ac3cSArnaldo Carvalho de Melo * Avoid annotation data structures overhead when symbols aren't on the 126519d4ac3cSArnaldo Carvalho de Melo * sort list. 126619d4ac3cSArnaldo Carvalho de Melo */ 126719d4ac3cSArnaldo Carvalho de Melo sort_has_symbols = sort_sym.list.next != NULL; 126819d4ac3cSArnaldo Carvalho de Melo 126913cc5079SArnaldo Carvalho de Melo get_term_dimensions(&winsize); 12708c3e10ebSArnaldo Carvalho de Melo if (top.print_entries == 0) { 127113cc5079SArnaldo Carvalho de Melo update_print_entries(&winsize); 12723b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, sig_winch_handler); 12733b6ed988SArnaldo Carvalho de Melo } 12743b6ed988SArnaldo Carvalho de Melo 127569aad6f1SArnaldo Carvalho de Melo status = __cmd_top(); 127669aad6f1SArnaldo Carvalho de Melo out_free_fd: 12778c3e10ebSArnaldo Carvalho de Melo perf_evlist__delete(top.evlist); 127869aad6f1SArnaldo Carvalho de Melo 127969aad6f1SArnaldo Carvalho de Melo return status; 128086470930SIngo Molnar } 1281