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> 886470930SIngo Molnar * 986470930SIngo Molnar * Improvements and fixes by: 1086470930SIngo Molnar * 1186470930SIngo Molnar * Arjan van de Ven <arjan@linux.intel.com> 1286470930SIngo Molnar * Yanmin Zhang <yanmin.zhang@intel.com> 1386470930SIngo Molnar * Wu Fengguang <fengguang.wu@intel.com> 1486470930SIngo Molnar * Mike Galbraith <efault@gmx.de> 1586470930SIngo Molnar * Paul Mackerras <paulus@samba.org> 1686470930SIngo Molnar * 1786470930SIngo Molnar * Released under the GPL v2. (and only v2, not any later version) 1886470930SIngo Molnar */ 1986470930SIngo Molnar #include "builtin.h" 2086470930SIngo Molnar 2186470930SIngo Molnar #include "perf.h" 2286470930SIngo Molnar 2386470930SIngo Molnar #include "util/symbol.h" 2486470930SIngo Molnar #include "util/color.h" 25439d473bSArnaldo Carvalho de Melo #include "util/thread.h" 2686470930SIngo Molnar #include "util/util.h" 2743cbcd8aSArnaldo Carvalho de Melo #include <linux/rbtree.h> 2886470930SIngo Molnar #include "util/parse-options.h" 2986470930SIngo Molnar #include "util/parse-events.h" 3086470930SIngo Molnar 318f28827aSFrederic Weisbecker #include "util/debug.h" 328f28827aSFrederic Weisbecker 3386470930SIngo Molnar #include <assert.h> 3486470930SIngo Molnar #include <fcntl.h> 3586470930SIngo Molnar 3686470930SIngo Molnar #include <stdio.h> 37923c42c1SMike Galbraith #include <termios.h> 38923c42c1SMike Galbraith #include <unistd.h> 3986470930SIngo Molnar 4086470930SIngo Molnar #include <errno.h> 4186470930SIngo Molnar #include <time.h> 4286470930SIngo Molnar #include <sched.h> 4386470930SIngo Molnar #include <pthread.h> 4486470930SIngo Molnar 4586470930SIngo Molnar #include <sys/syscall.h> 4686470930SIngo Molnar #include <sys/ioctl.h> 4786470930SIngo Molnar #include <sys/poll.h> 4886470930SIngo Molnar #include <sys/prctl.h> 4986470930SIngo Molnar #include <sys/wait.h> 5086470930SIngo Molnar #include <sys/uio.h> 5186470930SIngo Molnar #include <sys/mman.h> 5286470930SIngo Molnar 5386470930SIngo Molnar #include <linux/unistd.h> 5486470930SIngo Molnar #include <linux/types.h> 5586470930SIngo Molnar 5686470930SIngo Molnar static int fd[MAX_NR_CPUS][MAX_COUNTERS]; 5786470930SIngo Molnar 5886470930SIngo Molnar static int system_wide = 0; 5986470930SIngo Molnar 607e4ff9e3SMike Galbraith static int default_interval = 0; 6186470930SIngo Molnar 62923c42c1SMike Galbraith static int count_filter = 5; 633b6ed988SArnaldo Carvalho de Melo static int print_entries; 6486470930SIngo Molnar 6586470930SIngo Molnar static int target_pid = -1; 660fdc7e67SMike Galbraith static int inherit = 0; 6786470930SIngo Molnar static int profile_cpu = -1; 6886470930SIngo Molnar static int nr_cpus = 0; 6986470930SIngo Molnar static unsigned int realtime_prio = 0; 7086470930SIngo Molnar static int group = 0; 7186470930SIngo Molnar static unsigned int page_size; 7286470930SIngo Molnar static unsigned int mmap_pages = 16; 7342e59d7dSIngo Molnar static int freq = 1000; /* 1 KHz */ 7486470930SIngo Molnar 7586470930SIngo Molnar static int delay_secs = 2; 7642e59d7dSIngo Molnar static int zero = 0; 7742e59d7dSIngo Molnar static int dump_symtab = 0; 7886470930SIngo Molnar 798ffcda17SArnaldo Carvalho de Melo static bool hide_kernel_symbols = false; 808ffcda17SArnaldo Carvalho de Melo static bool hide_user_symbols = false; 8113cc5079SArnaldo Carvalho de Melo static struct winsize winsize; 8213cc5079SArnaldo Carvalho de Melo static const char *graph_line = 8313cc5079SArnaldo Carvalho de Melo "_____________________________________________________________________" 8413cc5079SArnaldo Carvalho de Melo "_____________________________________________________________________"; 8513cc5079SArnaldo Carvalho de Melo static const char *graph_dotted_line = 8613cc5079SArnaldo Carvalho de Melo "---------------------------------------------------------------------" 8713cc5079SArnaldo Carvalho de Melo "---------------------------------------------------------------------" 8813cc5079SArnaldo Carvalho de Melo "---------------------------------------------------------------------"; 898ffcda17SArnaldo Carvalho de Melo 9086470930SIngo Molnar /* 91923c42c1SMike Galbraith * Source 92923c42c1SMike Galbraith */ 93923c42c1SMike Galbraith 94923c42c1SMike Galbraith struct source_line { 95923c42c1SMike Galbraith u64 eip; 96923c42c1SMike Galbraith unsigned long count[MAX_COUNTERS]; 97923c42c1SMike Galbraith char *line; 98923c42c1SMike Galbraith struct source_line *next; 99923c42c1SMike Galbraith }; 100923c42c1SMike Galbraith 101923c42c1SMike Galbraith static char *sym_filter = NULL; 102923c42c1SMike Galbraith struct sym_entry *sym_filter_entry = NULL; 103923c42c1SMike Galbraith static int sym_pcnt_filter = 5; 104923c42c1SMike Galbraith static int sym_counter = 0; 10546ab9764SMike Galbraith static int display_weighted = -1; 106923c42c1SMike Galbraith 107923c42c1SMike Galbraith /* 10886470930SIngo Molnar * Symbols 10986470930SIngo Molnar */ 11086470930SIngo Molnar 11186470930SIngo Molnar struct sym_entry { 11286470930SIngo Molnar struct rb_node rb_node; 11386470930SIngo Molnar struct list_head node; 11486470930SIngo Molnar unsigned long count[MAX_COUNTERS]; 11586470930SIngo Molnar unsigned long snap_count; 11686470930SIngo Molnar double weight; 11786470930SIngo Molnar int skip; 11813cc5079SArnaldo Carvalho de Melo u16 name_len; 1198ffcda17SArnaldo Carvalho de Melo u8 origin; 120439d473bSArnaldo Carvalho de Melo struct map *map; 121923c42c1SMike Galbraith struct source_line *source; 122923c42c1SMike Galbraith struct source_line *lines; 123923c42c1SMike Galbraith struct source_line **lines_tail; 124923c42c1SMike Galbraith pthread_mutex_t source_lock; 12586470930SIngo Molnar }; 12686470930SIngo Molnar 127923c42c1SMike Galbraith /* 128923c42c1SMike Galbraith * Source functions 129923c42c1SMike Galbraith */ 130923c42c1SMike Galbraith 13151a472deSArnaldo Carvalho de Melo static inline struct symbol *sym_entry__symbol(struct sym_entry *self) 13251a472deSArnaldo Carvalho de Melo { 13351a472deSArnaldo Carvalho de Melo return (struct symbol *)(self + 1); 13451a472deSArnaldo Carvalho de Melo } 13551a472deSArnaldo Carvalho de Melo 13613cc5079SArnaldo Carvalho de Melo static void get_term_dimensions(struct winsize *ws) 1373b6ed988SArnaldo Carvalho de Melo { 13813cc5079SArnaldo Carvalho de Melo char *s = getenv("LINES"); 1393b6ed988SArnaldo Carvalho de Melo 14013cc5079SArnaldo Carvalho de Melo if (s != NULL) { 14113cc5079SArnaldo Carvalho de Melo ws->ws_row = atoi(s); 14213cc5079SArnaldo Carvalho de Melo s = getenv("COLUMNS"); 14313cc5079SArnaldo Carvalho de Melo if (s != NULL) { 14413cc5079SArnaldo Carvalho de Melo ws->ws_col = atoi(s); 14513cc5079SArnaldo Carvalho de Melo if (ws->ws_row && ws->ws_col) 14613cc5079SArnaldo Carvalho de Melo return; 14713cc5079SArnaldo Carvalho de Melo } 14813cc5079SArnaldo Carvalho de Melo } 1493b6ed988SArnaldo Carvalho de Melo #ifdef TIOCGWINSZ 15013cc5079SArnaldo Carvalho de Melo if (ioctl(1, TIOCGWINSZ, ws) == 0 && 15113cc5079SArnaldo Carvalho de Melo ws->ws_row && ws->ws_col) 15213cc5079SArnaldo Carvalho de Melo return; 1533b6ed988SArnaldo Carvalho de Melo #endif 15413cc5079SArnaldo Carvalho de Melo ws->ws_row = 25; 15513cc5079SArnaldo Carvalho de Melo ws->ws_col = 80; 1563b6ed988SArnaldo Carvalho de Melo } 1573b6ed988SArnaldo Carvalho de Melo 15813cc5079SArnaldo Carvalho de Melo static void update_print_entries(struct winsize *ws) 1593b6ed988SArnaldo Carvalho de Melo { 16013cc5079SArnaldo Carvalho de Melo print_entries = ws->ws_row; 16113cc5079SArnaldo Carvalho de Melo 1623b6ed988SArnaldo Carvalho de Melo if (print_entries > 9) 1633b6ed988SArnaldo Carvalho de Melo print_entries -= 9; 1643b6ed988SArnaldo Carvalho de Melo } 1653b6ed988SArnaldo Carvalho de Melo 1663b6ed988SArnaldo Carvalho de Melo static void sig_winch_handler(int sig __used) 1673b6ed988SArnaldo Carvalho de Melo { 16813cc5079SArnaldo Carvalho de Melo get_term_dimensions(&winsize); 16913cc5079SArnaldo Carvalho de Melo update_print_entries(&winsize); 1703b6ed988SArnaldo Carvalho de Melo } 1713b6ed988SArnaldo Carvalho de Melo 172923c42c1SMike Galbraith static void parse_source(struct sym_entry *syme) 173923c42c1SMike Galbraith { 174923c42c1SMike Galbraith struct symbol *sym; 175439d473bSArnaldo Carvalho de Melo struct map *map; 176923c42c1SMike Galbraith FILE *file; 17783a0944fSIngo Molnar char command[PATH_MAX*2]; 178439d473bSArnaldo Carvalho de Melo const char *path; 179439d473bSArnaldo Carvalho de Melo u64 len; 180923c42c1SMike Galbraith 181923c42c1SMike Galbraith if (!syme) 182923c42c1SMike Galbraith return; 183923c42c1SMike Galbraith 184923c42c1SMike Galbraith if (syme->lines) { 185923c42c1SMike Galbraith pthread_mutex_lock(&syme->source_lock); 186923c42c1SMike Galbraith goto out_assign; 187923c42c1SMike Galbraith } 188923c42c1SMike Galbraith 18951a472deSArnaldo Carvalho de Melo sym = sym_entry__symbol(syme); 190439d473bSArnaldo Carvalho de Melo map = syme->map; 191439d473bSArnaldo Carvalho de Melo path = map->dso->long_name; 192923c42c1SMike Galbraith 193923c42c1SMike Galbraith len = sym->end - sym->start; 194923c42c1SMike Galbraith 195439d473bSArnaldo Carvalho de Melo sprintf(command, 196439d473bSArnaldo Carvalho de Melo "objdump --start-address=0x%016Lx " 197439d473bSArnaldo Carvalho de Melo "--stop-address=0x%016Lx -dS %s", 198c88e4bf6SArnaldo Carvalho de Melo map->unmap_ip(map, sym->start), 199c88e4bf6SArnaldo Carvalho de Melo map->unmap_ip(map, sym->end), path); 200923c42c1SMike Galbraith 201923c42c1SMike Galbraith file = popen(command, "r"); 202923c42c1SMike Galbraith if (!file) 203923c42c1SMike Galbraith return; 204923c42c1SMike Galbraith 205923c42c1SMike Galbraith pthread_mutex_lock(&syme->source_lock); 206923c42c1SMike Galbraith syme->lines_tail = &syme->lines; 207923c42c1SMike Galbraith while (!feof(file)) { 208923c42c1SMike Galbraith struct source_line *src; 209923c42c1SMike Galbraith size_t dummy = 0; 210923c42c1SMike Galbraith char *c; 211923c42c1SMike Galbraith 212923c42c1SMike Galbraith src = malloc(sizeof(struct source_line)); 213923c42c1SMike Galbraith assert(src != NULL); 214923c42c1SMike Galbraith memset(src, 0, sizeof(struct source_line)); 215923c42c1SMike Galbraith 216923c42c1SMike Galbraith if (getline(&src->line, &dummy, file) < 0) 217923c42c1SMike Galbraith break; 218923c42c1SMike Galbraith if (!src->line) 219923c42c1SMike Galbraith break; 220923c42c1SMike Galbraith 221923c42c1SMike Galbraith c = strchr(src->line, '\n'); 222923c42c1SMike Galbraith if (c) 223923c42c1SMike Galbraith *c = 0; 224923c42c1SMike Galbraith 225923c42c1SMike Galbraith src->next = NULL; 226923c42c1SMike Galbraith *syme->lines_tail = src; 227923c42c1SMike Galbraith syme->lines_tail = &src->next; 228923c42c1SMike Galbraith 229923c42c1SMike Galbraith if (strlen(src->line)>8 && src->line[8] == ':') { 230923c42c1SMike Galbraith src->eip = strtoull(src->line, NULL, 16); 231c88e4bf6SArnaldo Carvalho de Melo src->eip = map->unmap_ip(map, src->eip); 232923c42c1SMike Galbraith } 233923c42c1SMike Galbraith if (strlen(src->line)>8 && src->line[16] == ':') { 234923c42c1SMike Galbraith src->eip = strtoull(src->line, NULL, 16); 235c88e4bf6SArnaldo Carvalho de Melo src->eip = map->unmap_ip(map, src->eip); 236923c42c1SMike Galbraith } 237923c42c1SMike Galbraith } 238923c42c1SMike Galbraith pclose(file); 239923c42c1SMike Galbraith out_assign: 240923c42c1SMike Galbraith sym_filter_entry = syme; 241923c42c1SMike Galbraith pthread_mutex_unlock(&syme->source_lock); 242923c42c1SMike Galbraith } 243923c42c1SMike Galbraith 244923c42c1SMike Galbraith static void __zero_source_counters(struct sym_entry *syme) 245923c42c1SMike Galbraith { 246923c42c1SMike Galbraith int i; 247923c42c1SMike Galbraith struct source_line *line; 248923c42c1SMike Galbraith 249923c42c1SMike Galbraith line = syme->lines; 250923c42c1SMike Galbraith while (line) { 251923c42c1SMike Galbraith for (i = 0; i < nr_counters; i++) 252923c42c1SMike Galbraith line->count[i] = 0; 253923c42c1SMike Galbraith line = line->next; 254923c42c1SMike Galbraith } 255923c42c1SMike Galbraith } 256923c42c1SMike Galbraith 257923c42c1SMike Galbraith static void record_precise_ip(struct sym_entry *syme, int counter, u64 ip) 258923c42c1SMike Galbraith { 259923c42c1SMike Galbraith struct source_line *line; 260923c42c1SMike Galbraith 261923c42c1SMike Galbraith if (syme != sym_filter_entry) 262923c42c1SMike Galbraith return; 263923c42c1SMike Galbraith 264923c42c1SMike Galbraith if (pthread_mutex_trylock(&syme->source_lock)) 265923c42c1SMike Galbraith return; 266923c42c1SMike Galbraith 267923c42c1SMike Galbraith if (!syme->source) 268923c42c1SMike Galbraith goto out_unlock; 269923c42c1SMike Galbraith 270923c42c1SMike Galbraith for (line = syme->lines; line; line = line->next) { 271923c42c1SMike Galbraith if (line->eip == ip) { 272923c42c1SMike Galbraith line->count[counter]++; 273923c42c1SMike Galbraith break; 274923c42c1SMike Galbraith } 275923c42c1SMike Galbraith if (line->eip > ip) 276923c42c1SMike Galbraith break; 277923c42c1SMike Galbraith } 278923c42c1SMike Galbraith out_unlock: 279923c42c1SMike Galbraith pthread_mutex_unlock(&syme->source_lock); 280923c42c1SMike Galbraith } 281923c42c1SMike Galbraith 282923c42c1SMike Galbraith static void lookup_sym_source(struct sym_entry *syme) 283923c42c1SMike Galbraith { 28451a472deSArnaldo Carvalho de Melo struct symbol *symbol = sym_entry__symbol(syme); 285923c42c1SMike Galbraith struct source_line *line; 286923c42c1SMike Galbraith char pattern[PATH_MAX]; 287923c42c1SMike Galbraith 288923c42c1SMike Galbraith sprintf(pattern, "<%s>:", symbol->name); 289923c42c1SMike Galbraith 290923c42c1SMike Galbraith pthread_mutex_lock(&syme->source_lock); 291923c42c1SMike Galbraith for (line = syme->lines; line; line = line->next) { 292923c42c1SMike Galbraith if (strstr(line->line, pattern)) { 293923c42c1SMike Galbraith syme->source = line; 294923c42c1SMike Galbraith break; 295923c42c1SMike Galbraith } 296923c42c1SMike Galbraith } 297923c42c1SMike Galbraith pthread_mutex_unlock(&syme->source_lock); 298923c42c1SMike Galbraith } 299923c42c1SMike Galbraith 300923c42c1SMike Galbraith static void show_lines(struct source_line *queue, int count, int total) 301923c42c1SMike Galbraith { 302923c42c1SMike Galbraith int i; 303923c42c1SMike Galbraith struct source_line *line; 304923c42c1SMike Galbraith 305923c42c1SMike Galbraith line = queue; 306923c42c1SMike Galbraith for (i = 0; i < count; i++) { 307923c42c1SMike Galbraith float pcnt = 100.0*(float)line->count[sym_counter]/(float)total; 308923c42c1SMike Galbraith 309923c42c1SMike Galbraith printf("%8li %4.1f%%\t%s\n", line->count[sym_counter], pcnt, line->line); 310923c42c1SMike Galbraith line = line->next; 311923c42c1SMike Galbraith } 312923c42c1SMike Galbraith } 313923c42c1SMike Galbraith 314923c42c1SMike Galbraith #define TRACE_COUNT 3 315923c42c1SMike Galbraith 316923c42c1SMike Galbraith static void show_details(struct sym_entry *syme) 317923c42c1SMike Galbraith { 318923c42c1SMike Galbraith struct symbol *symbol; 319923c42c1SMike Galbraith struct source_line *line; 320923c42c1SMike Galbraith struct source_line *line_queue = NULL; 321923c42c1SMike Galbraith int displayed = 0; 322923c42c1SMike Galbraith int line_queue_count = 0, total = 0, more = 0; 323923c42c1SMike Galbraith 324923c42c1SMike Galbraith if (!syme) 325923c42c1SMike Galbraith return; 326923c42c1SMike Galbraith 327923c42c1SMike Galbraith if (!syme->source) 328923c42c1SMike Galbraith lookup_sym_source(syme); 329923c42c1SMike Galbraith 330923c42c1SMike Galbraith if (!syme->source) 331923c42c1SMike Galbraith return; 332923c42c1SMike Galbraith 33351a472deSArnaldo Carvalho de Melo symbol = sym_entry__symbol(syme); 334923c42c1SMike Galbraith printf("Showing %s for %s\n", event_name(sym_counter), symbol->name); 335923c42c1SMike Galbraith printf(" Events Pcnt (>=%d%%)\n", sym_pcnt_filter); 336923c42c1SMike Galbraith 337923c42c1SMike Galbraith pthread_mutex_lock(&syme->source_lock); 338923c42c1SMike Galbraith line = syme->source; 339923c42c1SMike Galbraith while (line) { 340923c42c1SMike Galbraith total += line->count[sym_counter]; 341923c42c1SMike Galbraith line = line->next; 342923c42c1SMike Galbraith } 343923c42c1SMike Galbraith 344923c42c1SMike Galbraith line = syme->source; 345923c42c1SMike Galbraith while (line) { 346923c42c1SMike Galbraith float pcnt = 0.0; 347923c42c1SMike Galbraith 348923c42c1SMike Galbraith if (!line_queue_count) 349923c42c1SMike Galbraith line_queue = line; 350923c42c1SMike Galbraith line_queue_count++; 351923c42c1SMike Galbraith 352923c42c1SMike Galbraith if (line->count[sym_counter]) 353923c42c1SMike Galbraith pcnt = 100.0 * line->count[sym_counter] / (float)total; 354923c42c1SMike Galbraith if (pcnt >= (float)sym_pcnt_filter) { 355923c42c1SMike Galbraith if (displayed <= print_entries) 356923c42c1SMike Galbraith show_lines(line_queue, line_queue_count, total); 357923c42c1SMike Galbraith else more++; 358923c42c1SMike Galbraith displayed += line_queue_count; 359923c42c1SMike Galbraith line_queue_count = 0; 360923c42c1SMike Galbraith line_queue = NULL; 361923c42c1SMike Galbraith } else if (line_queue_count > TRACE_COUNT) { 362923c42c1SMike Galbraith line_queue = line_queue->next; 363923c42c1SMike Galbraith line_queue_count--; 364923c42c1SMike Galbraith } 365923c42c1SMike Galbraith 366923c42c1SMike Galbraith line->count[sym_counter] = zero ? 0 : line->count[sym_counter] * 7 / 8; 367923c42c1SMike Galbraith line = line->next; 368923c42c1SMike Galbraith } 369923c42c1SMike Galbraith pthread_mutex_unlock(&syme->source_lock); 370923c42c1SMike Galbraith if (more) 371923c42c1SMike Galbraith printf("%d lines not displayed, maybe increase display entries [e]\n", more); 372923c42c1SMike Galbraith } 37386470930SIngo Molnar 37486470930SIngo Molnar /* 3755b2bb75aSArnaldo Carvalho de Melo * Symbols will be added here in event__process_sample and will get out 37686470930SIngo Molnar * after decayed. 37786470930SIngo Molnar */ 37886470930SIngo Molnar static LIST_HEAD(active_symbols); 37986470930SIngo Molnar static pthread_mutex_t active_symbols_lock = PTHREAD_MUTEX_INITIALIZER; 38086470930SIngo Molnar 38186470930SIngo Molnar /* 38286470930SIngo Molnar * Ordering weight: count-1 * count-2 * ... / count-n 38386470930SIngo Molnar */ 38486470930SIngo Molnar static double sym_weight(const struct sym_entry *sym) 38586470930SIngo Molnar { 38686470930SIngo Molnar double weight = sym->snap_count; 38786470930SIngo Molnar int counter; 38886470930SIngo Molnar 38946ab9764SMike Galbraith if (!display_weighted) 39046ab9764SMike Galbraith return weight; 39146ab9764SMike Galbraith 39286470930SIngo Molnar for (counter = 1; counter < nr_counters-1; counter++) 39386470930SIngo Molnar weight *= sym->count[counter]; 39486470930SIngo Molnar 39586470930SIngo Molnar weight /= (sym->count[counter] + 1); 39686470930SIngo Molnar 39786470930SIngo Molnar return weight; 39886470930SIngo Molnar } 39986470930SIngo Molnar 40086470930SIngo Molnar static long samples; 40186470930SIngo Molnar static long userspace_samples; 40286470930SIngo Molnar static const char CONSOLE_CLEAR[] = "[H[2J"; 40386470930SIngo Molnar 40486470930SIngo Molnar static void __list_insert_active_sym(struct sym_entry *syme) 40586470930SIngo Molnar { 40686470930SIngo Molnar list_add(&syme->node, &active_symbols); 40786470930SIngo Molnar } 40886470930SIngo Molnar 40986470930SIngo Molnar static void list_remove_active_sym(struct sym_entry *syme) 41086470930SIngo Molnar { 41186470930SIngo Molnar pthread_mutex_lock(&active_symbols_lock); 41286470930SIngo Molnar list_del_init(&syme->node); 41386470930SIngo Molnar pthread_mutex_unlock(&active_symbols_lock); 41486470930SIngo Molnar } 41586470930SIngo Molnar 41686470930SIngo Molnar static void rb_insert_active_sym(struct rb_root *tree, struct sym_entry *se) 41786470930SIngo Molnar { 41886470930SIngo Molnar struct rb_node **p = &tree->rb_node; 41986470930SIngo Molnar struct rb_node *parent = NULL; 42086470930SIngo Molnar struct sym_entry *iter; 42186470930SIngo Molnar 42286470930SIngo Molnar while (*p != NULL) { 42386470930SIngo Molnar parent = *p; 42486470930SIngo Molnar iter = rb_entry(parent, struct sym_entry, rb_node); 42586470930SIngo Molnar 42686470930SIngo Molnar if (se->weight > iter->weight) 42786470930SIngo Molnar p = &(*p)->rb_left; 42886470930SIngo Molnar else 42986470930SIngo Molnar p = &(*p)->rb_right; 43086470930SIngo Molnar } 43186470930SIngo Molnar 43286470930SIngo Molnar rb_link_node(&se->rb_node, parent, p); 43386470930SIngo Molnar rb_insert_color(&se->rb_node, tree); 43486470930SIngo Molnar } 43586470930SIngo Molnar 43686470930SIngo Molnar static void print_sym_table(void) 43786470930SIngo Molnar { 43886470930SIngo Molnar int printed = 0, j; 43946ab9764SMike Galbraith int counter, snap = !display_weighted ? sym_counter : 0; 44086470930SIngo Molnar float samples_per_sec = samples/delay_secs; 44186470930SIngo Molnar float ksamples_per_sec = (samples-userspace_samples)/delay_secs; 44286470930SIngo Molnar float sum_ksamples = 0.0; 44386470930SIngo Molnar struct sym_entry *syme, *n; 44486470930SIngo Molnar struct rb_root tmp = RB_ROOT; 44586470930SIngo Molnar struct rb_node *nd; 4461a105f74SArnaldo Carvalho de Melo int sym_width = 0, dso_width = 0; 44713cc5079SArnaldo Carvalho de Melo const int win_width = winsize.ws_col - 1; 4481a105f74SArnaldo Carvalho de Melo struct dso *unique_dso = NULL, *first_dso = NULL; 44986470930SIngo Molnar 45086470930SIngo Molnar samples = userspace_samples = 0; 45186470930SIngo Molnar 45286470930SIngo Molnar /* Sort the active symbols */ 45386470930SIngo Molnar pthread_mutex_lock(&active_symbols_lock); 45486470930SIngo Molnar syme = list_entry(active_symbols.next, struct sym_entry, node); 45586470930SIngo Molnar pthread_mutex_unlock(&active_symbols_lock); 45686470930SIngo Molnar 45786470930SIngo Molnar list_for_each_entry_safe_from(syme, n, &active_symbols, node) { 45846ab9764SMike Galbraith syme->snap_count = syme->count[snap]; 45986470930SIngo Molnar if (syme->snap_count != 0) { 46013cc5079SArnaldo Carvalho de Melo 4618ffcda17SArnaldo Carvalho de Melo if ((hide_user_symbols && 4628ffcda17SArnaldo Carvalho de Melo syme->origin == PERF_RECORD_MISC_USER) || 4638ffcda17SArnaldo Carvalho de Melo (hide_kernel_symbols && 4648ffcda17SArnaldo Carvalho de Melo syme->origin == PERF_RECORD_MISC_KERNEL)) { 4658ffcda17SArnaldo Carvalho de Melo list_remove_active_sym(syme); 4668ffcda17SArnaldo Carvalho de Melo continue; 4678ffcda17SArnaldo Carvalho de Melo } 46886470930SIngo Molnar syme->weight = sym_weight(syme); 46986470930SIngo Molnar rb_insert_active_sym(&tmp, syme); 47086470930SIngo Molnar sum_ksamples += syme->snap_count; 47186470930SIngo Molnar 47286470930SIngo Molnar for (j = 0; j < nr_counters; j++) 47386470930SIngo Molnar syme->count[j] = zero ? 0 : syme->count[j] * 7 / 8; 47486470930SIngo Molnar } else 47586470930SIngo Molnar list_remove_active_sym(syme); 47686470930SIngo Molnar } 47786470930SIngo Molnar 47886470930SIngo Molnar puts(CONSOLE_CLEAR); 47986470930SIngo Molnar 48013cc5079SArnaldo Carvalho de Melo printf("%-*.*s\n", win_width, win_width, graph_dotted_line); 48186470930SIngo Molnar printf( " PerfTop:%8.0f irqs/sec kernel:%4.1f%% [", 48286470930SIngo Molnar samples_per_sec, 48386470930SIngo Molnar 100.0 - (100.0*((samples_per_sec-ksamples_per_sec)/samples_per_sec))); 48486470930SIngo Molnar 48546ab9764SMike Galbraith if (nr_counters == 1 || !display_weighted) { 4869cffa8d5SPaul Mackerras printf("%Ld", (u64)attrs[0].sample_period); 48786470930SIngo Molnar if (freq) 48886470930SIngo Molnar printf("Hz "); 48986470930SIngo Molnar else 49086470930SIngo Molnar printf(" "); 49186470930SIngo Molnar } 49286470930SIngo Molnar 49346ab9764SMike Galbraith if (!display_weighted) 49446ab9764SMike Galbraith printf("%s", event_name(sym_counter)); 49546ab9764SMike Galbraith else for (counter = 0; counter < nr_counters; counter++) { 49686470930SIngo Molnar if (counter) 49786470930SIngo Molnar printf("/"); 49886470930SIngo Molnar 49986470930SIngo Molnar printf("%s", event_name(counter)); 50086470930SIngo Molnar } 50186470930SIngo Molnar 50286470930SIngo Molnar printf( "], "); 50386470930SIngo Molnar 50486470930SIngo Molnar if (target_pid != -1) 50586470930SIngo Molnar printf(" (target_pid: %d", target_pid); 50686470930SIngo Molnar else 50786470930SIngo Molnar printf(" (all"); 50886470930SIngo Molnar 50986470930SIngo Molnar if (profile_cpu != -1) 51086470930SIngo Molnar printf(", cpu: %d)\n", profile_cpu); 51186470930SIngo Molnar else { 51286470930SIngo Molnar if (target_pid != -1) 51386470930SIngo Molnar printf(")\n"); 51486470930SIngo Molnar else 51586470930SIngo Molnar printf(", %d CPUs)\n", nr_cpus); 51686470930SIngo Molnar } 51786470930SIngo Molnar 5181a105f74SArnaldo Carvalho de Melo printf("%-*.*s\n", win_width, win_width, graph_dotted_line); 51986470930SIngo Molnar 520923c42c1SMike Galbraith if (sym_filter_entry) { 521923c42c1SMike Galbraith show_details(sym_filter_entry); 522923c42c1SMike Galbraith return; 523923c42c1SMike Galbraith } 524923c42c1SMike Galbraith 52513cc5079SArnaldo Carvalho de Melo /* 52613cc5079SArnaldo Carvalho de Melo * Find the longest symbol name that will be displayed 52713cc5079SArnaldo Carvalho de Melo */ 52813cc5079SArnaldo Carvalho de Melo for (nd = rb_first(&tmp); nd; nd = rb_next(nd)) { 52913cc5079SArnaldo Carvalho de Melo syme = rb_entry(nd, struct sym_entry, rb_node); 53013cc5079SArnaldo Carvalho de Melo if (++printed > print_entries || 53113cc5079SArnaldo Carvalho de Melo (int)syme->snap_count < count_filter) 53213cc5079SArnaldo Carvalho de Melo continue; 53313cc5079SArnaldo Carvalho de Melo 5341a105f74SArnaldo Carvalho de Melo if (first_dso == NULL) 5351a105f74SArnaldo Carvalho de Melo unique_dso = first_dso = syme->map->dso; 5361a105f74SArnaldo Carvalho de Melo else if (syme->map->dso != first_dso) 5371a105f74SArnaldo Carvalho de Melo unique_dso = NULL; 5381a105f74SArnaldo Carvalho de Melo 5391a105f74SArnaldo Carvalho de Melo if (syme->map->dso->long_name_len > dso_width) 5401a105f74SArnaldo Carvalho de Melo dso_width = syme->map->dso->long_name_len; 5411a105f74SArnaldo Carvalho de Melo 54213cc5079SArnaldo Carvalho de Melo if (syme->name_len > sym_width) 54313cc5079SArnaldo Carvalho de Melo sym_width = syme->name_len; 54413cc5079SArnaldo Carvalho de Melo } 54513cc5079SArnaldo Carvalho de Melo 54613cc5079SArnaldo Carvalho de Melo printed = 0; 54713cc5079SArnaldo Carvalho de Melo 5481a105f74SArnaldo Carvalho de Melo if (unique_dso) 5491a105f74SArnaldo Carvalho de Melo printf("DSO: %s\n", unique_dso->long_name); 5501a105f74SArnaldo Carvalho de Melo else { 5511a105f74SArnaldo Carvalho de Melo int max_dso_width = winsize.ws_col - sym_width - 29; 5521a105f74SArnaldo Carvalho de Melo if (dso_width > max_dso_width) 5531a105f74SArnaldo Carvalho de Melo dso_width = max_dso_width; 5541a105f74SArnaldo Carvalho de Melo putchar('\n'); 5551a105f74SArnaldo Carvalho de Melo } 55686470930SIngo Molnar if (nr_counters == 1) 55786470930SIngo Molnar printf(" samples pcnt"); 55886470930SIngo Molnar else 55986470930SIngo Molnar printf(" weight samples pcnt"); 56086470930SIngo Molnar 5617ced156bSArnaldo Carvalho de Melo if (verbose) 5627ced156bSArnaldo Carvalho de Melo printf(" RIP "); 5631a105f74SArnaldo Carvalho de Melo printf(" %-*.*s", sym_width, sym_width, "function"); 5641a105f74SArnaldo Carvalho de Melo if (!unique_dso) 5651a105f74SArnaldo Carvalho de Melo printf(" DSO"); 5661a105f74SArnaldo Carvalho de Melo putchar('\n'); 5677ced156bSArnaldo Carvalho de Melo printf(" %s _______ _____", 5687ced156bSArnaldo Carvalho de Melo nr_counters == 1 ? " " : "______"); 5697ced156bSArnaldo Carvalho de Melo if (verbose) 5707ced156bSArnaldo Carvalho de Melo printf(" ________________"); 5711a105f74SArnaldo Carvalho de Melo printf(" %-*.*s", sym_width, sym_width, graph_line); 5721a105f74SArnaldo Carvalho de Melo if (!unique_dso) 5731a105f74SArnaldo Carvalho de Melo printf(" %-*.*s", dso_width, dso_width, graph_line); 5741a105f74SArnaldo Carvalho de Melo puts("\n"); 57586470930SIngo Molnar 57686470930SIngo Molnar for (nd = rb_first(&tmp); nd; nd = rb_next(nd)) { 57783a0944fSIngo Molnar struct symbol *sym; 57886470930SIngo Molnar double pcnt; 57986470930SIngo Molnar 58083a0944fSIngo Molnar syme = rb_entry(nd, struct sym_entry, rb_node); 58151a472deSArnaldo Carvalho de Melo sym = sym_entry__symbol(syme); 58283a0944fSIngo Molnar 583923c42c1SMike Galbraith if (++printed > print_entries || (int)syme->snap_count < count_filter) 58486470930SIngo Molnar continue; 58586470930SIngo Molnar 58686470930SIngo Molnar pcnt = 100.0 - (100.0 * ((sum_ksamples - syme->snap_count) / 58786470930SIngo Molnar sum_ksamples)); 58886470930SIngo Molnar 58946ab9764SMike Galbraith if (nr_counters == 1 || !display_weighted) 5905b2bb75aSArnaldo Carvalho de Melo printf("%20.2f ", syme->weight); 59186470930SIngo Molnar else 5925b2bb75aSArnaldo Carvalho de Melo printf("%9.1f %10ld ", syme->weight, syme->snap_count); 59386470930SIngo Molnar 5941e11fd82SFrederic Weisbecker percent_color_fprintf(stdout, "%4.1f%%", pcnt); 5957ced156bSArnaldo Carvalho de Melo if (verbose) 5965b2bb75aSArnaldo Carvalho de Melo printf(" %016llx", sym->start); 59713cc5079SArnaldo Carvalho de Melo printf(" %-*.*s", sym_width, sym_width, sym->name); 5981a105f74SArnaldo Carvalho de Melo if (!unique_dso) 59913cc5079SArnaldo Carvalho de Melo printf(" %-*.*s", dso_width, dso_width, 60013cc5079SArnaldo Carvalho de Melo dso_width >= syme->map->dso->long_name_len ? 60113cc5079SArnaldo Carvalho de Melo syme->map->dso->long_name : 60213cc5079SArnaldo Carvalho de Melo syme->map->dso->short_name); 60342976487SMike Galbraith printf("\n"); 60486470930SIngo Molnar } 60586470930SIngo Molnar } 60686470930SIngo Molnar 607923c42c1SMike Galbraith static void prompt_integer(int *target, const char *msg) 608923c42c1SMike Galbraith { 609923c42c1SMike Galbraith char *buf = malloc(0), *p; 610923c42c1SMike Galbraith size_t dummy = 0; 611923c42c1SMike Galbraith int tmp; 612923c42c1SMike Galbraith 613923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 614923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 615923c42c1SMike Galbraith return; 616923c42c1SMike Galbraith 617923c42c1SMike Galbraith p = strchr(buf, '\n'); 618923c42c1SMike Galbraith if (p) 619923c42c1SMike Galbraith *p = 0; 620923c42c1SMike Galbraith 621923c42c1SMike Galbraith p = buf; 622923c42c1SMike Galbraith while(*p) { 623923c42c1SMike Galbraith if (!isdigit(*p)) 624923c42c1SMike Galbraith goto out_free; 625923c42c1SMike Galbraith p++; 626923c42c1SMike Galbraith } 627923c42c1SMike Galbraith tmp = strtoul(buf, NULL, 10); 628923c42c1SMike Galbraith *target = tmp; 629923c42c1SMike Galbraith out_free: 630923c42c1SMike Galbraith free(buf); 631923c42c1SMike Galbraith } 632923c42c1SMike Galbraith 633923c42c1SMike Galbraith static void prompt_percent(int *target, const char *msg) 634923c42c1SMike Galbraith { 635923c42c1SMike Galbraith int tmp = 0; 636923c42c1SMike Galbraith 637923c42c1SMike Galbraith prompt_integer(&tmp, msg); 638923c42c1SMike Galbraith if (tmp >= 0 && tmp <= 100) 639923c42c1SMike Galbraith *target = tmp; 640923c42c1SMike Galbraith } 641923c42c1SMike Galbraith 642923c42c1SMike Galbraith static void prompt_symbol(struct sym_entry **target, const char *msg) 643923c42c1SMike Galbraith { 644923c42c1SMike Galbraith char *buf = malloc(0), *p; 645923c42c1SMike Galbraith struct sym_entry *syme = *target, *n, *found = NULL; 646923c42c1SMike Galbraith size_t dummy = 0; 647923c42c1SMike Galbraith 648923c42c1SMike Galbraith /* zero counters of active symbol */ 649923c42c1SMike Galbraith if (syme) { 650923c42c1SMike Galbraith pthread_mutex_lock(&syme->source_lock); 651923c42c1SMike Galbraith __zero_source_counters(syme); 652923c42c1SMike Galbraith *target = NULL; 653923c42c1SMike Galbraith pthread_mutex_unlock(&syme->source_lock); 654923c42c1SMike Galbraith } 655923c42c1SMike Galbraith 656923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 657923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 658923c42c1SMike Galbraith goto out_free; 659923c42c1SMike Galbraith 660923c42c1SMike Galbraith p = strchr(buf, '\n'); 661923c42c1SMike Galbraith if (p) 662923c42c1SMike Galbraith *p = 0; 663923c42c1SMike Galbraith 664923c42c1SMike Galbraith pthread_mutex_lock(&active_symbols_lock); 665923c42c1SMike Galbraith syme = list_entry(active_symbols.next, struct sym_entry, node); 666923c42c1SMike Galbraith pthread_mutex_unlock(&active_symbols_lock); 667923c42c1SMike Galbraith 668923c42c1SMike Galbraith list_for_each_entry_safe_from(syme, n, &active_symbols, node) { 66951a472deSArnaldo Carvalho de Melo struct symbol *sym = sym_entry__symbol(syme); 670923c42c1SMike Galbraith 671923c42c1SMike Galbraith if (!strcmp(buf, sym->name)) { 672923c42c1SMike Galbraith found = syme; 673923c42c1SMike Galbraith break; 674923c42c1SMike Galbraith } 675923c42c1SMike Galbraith } 676923c42c1SMike Galbraith 677923c42c1SMike Galbraith if (!found) { 678923c42c1SMike Galbraith fprintf(stderr, "Sorry, %s is not active.\n", sym_filter); 679923c42c1SMike Galbraith sleep(1); 680923c42c1SMike Galbraith return; 681923c42c1SMike Galbraith } else 682923c42c1SMike Galbraith parse_source(found); 683923c42c1SMike Galbraith 684923c42c1SMike Galbraith out_free: 685923c42c1SMike Galbraith free(buf); 686923c42c1SMike Galbraith } 687923c42c1SMike Galbraith 688091bd2e9SMike Galbraith static void print_mapped_keys(void) 689923c42c1SMike Galbraith { 690091bd2e9SMike Galbraith char *name = NULL; 691091bd2e9SMike Galbraith 692091bd2e9SMike Galbraith if (sym_filter_entry) { 69351a472deSArnaldo Carvalho de Melo struct symbol *sym = sym_entry__symbol(sym_filter_entry); 694091bd2e9SMike Galbraith name = sym->name; 695091bd2e9SMike Galbraith } 696091bd2e9SMike Galbraith 697091bd2e9SMike Galbraith fprintf(stdout, "\nMapped keys:\n"); 698091bd2e9SMike Galbraith fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", delay_secs); 699091bd2e9SMike Galbraith fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", print_entries); 700091bd2e9SMike Galbraith 701091bd2e9SMike Galbraith if (nr_counters > 1) 70246ab9764SMike Galbraith fprintf(stdout, "\t[E] active event counter. \t(%s)\n", event_name(sym_counter)); 703091bd2e9SMike Galbraith 704091bd2e9SMike Galbraith fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", count_filter); 705091bd2e9SMike Galbraith 70683a0944fSIngo Molnar if (vmlinux_name) { 707091bd2e9SMike Galbraith fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", sym_pcnt_filter); 708091bd2e9SMike Galbraith fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); 709091bd2e9SMike Galbraith fprintf(stdout, "\t[S] stop annotation.\n"); 710091bd2e9SMike Galbraith } 711091bd2e9SMike Galbraith 712091bd2e9SMike Galbraith if (nr_counters > 1) 71346ab9764SMike Galbraith fprintf(stdout, "\t[w] toggle display weighted/count[E]r. \t(%d)\n", display_weighted ? 1 : 0); 714091bd2e9SMike Galbraith 7158ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 7168ffcda17SArnaldo Carvalho de Melo "\t[K] hide kernel_symbols symbols. \t(%s)\n", 7178ffcda17SArnaldo Carvalho de Melo hide_kernel_symbols ? "yes" : "no"); 7188ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 7198ffcda17SArnaldo Carvalho de Melo "\t[U] hide user symbols. \t(%s)\n", 7208ffcda17SArnaldo Carvalho de Melo hide_user_symbols ? "yes" : "no"); 72146ab9764SMike Galbraith fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", zero ? 1 : 0); 722091bd2e9SMike Galbraith fprintf(stdout, "\t[qQ] quit.\n"); 723091bd2e9SMike Galbraith } 724091bd2e9SMike Galbraith 725091bd2e9SMike Galbraith static int key_mapped(int c) 726091bd2e9SMike Galbraith { 727091bd2e9SMike Galbraith switch (c) { 728091bd2e9SMike Galbraith case 'd': 729091bd2e9SMike Galbraith case 'e': 730091bd2e9SMike Galbraith case 'f': 731091bd2e9SMike Galbraith case 'z': 732091bd2e9SMike Galbraith case 'q': 733091bd2e9SMike Galbraith case 'Q': 7348ffcda17SArnaldo Carvalho de Melo case 'K': 7358ffcda17SArnaldo Carvalho de Melo case 'U': 736091bd2e9SMike Galbraith return 1; 737091bd2e9SMike Galbraith case 'E': 738091bd2e9SMike Galbraith case 'w': 739091bd2e9SMike Galbraith return nr_counters > 1 ? 1 : 0; 740091bd2e9SMike Galbraith case 'F': 741091bd2e9SMike Galbraith case 's': 742091bd2e9SMike Galbraith case 'S': 74383a0944fSIngo Molnar return vmlinux_name ? 1 : 0; 74483a0944fSIngo Molnar default: 74583a0944fSIngo Molnar break; 746091bd2e9SMike Galbraith } 747091bd2e9SMike Galbraith 748091bd2e9SMike Galbraith return 0; 749923c42c1SMike Galbraith } 750923c42c1SMike Galbraith 751923c42c1SMike Galbraith static void handle_keypress(int c) 752923c42c1SMike Galbraith { 753091bd2e9SMike Galbraith if (!key_mapped(c)) { 754091bd2e9SMike Galbraith struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 755091bd2e9SMike Galbraith struct termios tc, save; 756091bd2e9SMike Galbraith 757091bd2e9SMike Galbraith print_mapped_keys(); 758091bd2e9SMike Galbraith fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); 759091bd2e9SMike Galbraith fflush(stdout); 760091bd2e9SMike Galbraith 761091bd2e9SMike Galbraith tcgetattr(0, &save); 762091bd2e9SMike Galbraith tc = save; 763091bd2e9SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 764091bd2e9SMike Galbraith tc.c_cc[VMIN] = 0; 765091bd2e9SMike Galbraith tc.c_cc[VTIME] = 0; 766091bd2e9SMike Galbraith tcsetattr(0, TCSANOW, &tc); 767091bd2e9SMike Galbraith 768091bd2e9SMike Galbraith poll(&stdin_poll, 1, -1); 769091bd2e9SMike Galbraith c = getc(stdin); 770091bd2e9SMike Galbraith 771091bd2e9SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 772091bd2e9SMike Galbraith if (!key_mapped(c)) 773091bd2e9SMike Galbraith return; 774091bd2e9SMike Galbraith } 775091bd2e9SMike Galbraith 776923c42c1SMike Galbraith switch (c) { 777923c42c1SMike Galbraith case 'd': 778923c42c1SMike Galbraith prompt_integer(&delay_secs, "Enter display delay"); 779dc79959aSTim Blechmann if (delay_secs < 1) 780dc79959aSTim Blechmann delay_secs = 1; 781923c42c1SMike Galbraith break; 782923c42c1SMike Galbraith case 'e': 783923c42c1SMike Galbraith prompt_integer(&print_entries, "Enter display entries (lines)"); 7843b6ed988SArnaldo Carvalho de Melo if (print_entries == 0) { 78513cc5079SArnaldo Carvalho de Melo sig_winch_handler(SIGWINCH); 7863b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, sig_winch_handler); 7873b6ed988SArnaldo Carvalho de Melo } else 7883b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, SIG_DFL); 789923c42c1SMike Galbraith break; 790923c42c1SMike Galbraith case 'E': 791923c42c1SMike Galbraith if (nr_counters > 1) { 792923c42c1SMike Galbraith int i; 793923c42c1SMike Galbraith 794923c42c1SMike Galbraith fprintf(stderr, "\nAvailable events:"); 795923c42c1SMike Galbraith for (i = 0; i < nr_counters; i++) 796923c42c1SMike Galbraith fprintf(stderr, "\n\t%d %s", i, event_name(i)); 797923c42c1SMike Galbraith 798923c42c1SMike Galbraith prompt_integer(&sym_counter, "Enter details event counter"); 799923c42c1SMike Galbraith 800923c42c1SMike Galbraith if (sym_counter >= nr_counters) { 801923c42c1SMike Galbraith fprintf(stderr, "Sorry, no such event, using %s.\n", event_name(0)); 802923c42c1SMike Galbraith sym_counter = 0; 803923c42c1SMike Galbraith sleep(1); 804923c42c1SMike Galbraith } 805923c42c1SMike Galbraith } else sym_counter = 0; 806923c42c1SMike Galbraith break; 807923c42c1SMike Galbraith case 'f': 808923c42c1SMike Galbraith prompt_integer(&count_filter, "Enter display event count filter"); 809923c42c1SMike Galbraith break; 810923c42c1SMike Galbraith case 'F': 811923c42c1SMike Galbraith prompt_percent(&sym_pcnt_filter, "Enter details display event filter (percent)"); 812923c42c1SMike Galbraith break; 8138ffcda17SArnaldo Carvalho de Melo case 'K': 8148ffcda17SArnaldo Carvalho de Melo hide_kernel_symbols = !hide_kernel_symbols; 8158ffcda17SArnaldo Carvalho de Melo break; 816923c42c1SMike Galbraith case 'q': 817923c42c1SMike Galbraith case 'Q': 818923c42c1SMike Galbraith printf("exiting.\n"); 819923c42c1SMike Galbraith exit(0); 820923c42c1SMike Galbraith case 's': 821923c42c1SMike Galbraith prompt_symbol(&sym_filter_entry, "Enter details symbol"); 822923c42c1SMike Galbraith break; 823923c42c1SMike Galbraith case 'S': 824923c42c1SMike Galbraith if (!sym_filter_entry) 825923c42c1SMike Galbraith break; 826923c42c1SMike Galbraith else { 827923c42c1SMike Galbraith struct sym_entry *syme = sym_filter_entry; 828923c42c1SMike Galbraith 829923c42c1SMike Galbraith pthread_mutex_lock(&syme->source_lock); 830923c42c1SMike Galbraith sym_filter_entry = NULL; 831923c42c1SMike Galbraith __zero_source_counters(syme); 832923c42c1SMike Galbraith pthread_mutex_unlock(&syme->source_lock); 833923c42c1SMike Galbraith } 834923c42c1SMike Galbraith break; 8358ffcda17SArnaldo Carvalho de Melo case 'U': 8368ffcda17SArnaldo Carvalho de Melo hide_user_symbols = !hide_user_symbols; 8378ffcda17SArnaldo Carvalho de Melo break; 83846ab9764SMike Galbraith case 'w': 83946ab9764SMike Galbraith display_weighted = ~display_weighted; 84046ab9764SMike Galbraith break; 841923c42c1SMike Galbraith case 'z': 842923c42c1SMike Galbraith zero = ~zero; 843923c42c1SMike Galbraith break; 84483a0944fSIngo Molnar default: 84583a0944fSIngo Molnar break; 846923c42c1SMike Galbraith } 847923c42c1SMike Galbraith } 848923c42c1SMike Galbraith 849f37a291cSIngo Molnar static void *display_thread(void *arg __used) 85086470930SIngo Molnar { 85186470930SIngo Molnar struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 852923c42c1SMike Galbraith struct termios tc, save; 853923c42c1SMike Galbraith int delay_msecs, c; 85486470930SIngo Molnar 855923c42c1SMike Galbraith tcgetattr(0, &save); 856923c42c1SMike Galbraith tc = save; 857923c42c1SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 858923c42c1SMike Galbraith tc.c_cc[VMIN] = 0; 859923c42c1SMike Galbraith tc.c_cc[VTIME] = 0; 860091bd2e9SMike Galbraith 861923c42c1SMike Galbraith repeat: 862923c42c1SMike Galbraith delay_msecs = delay_secs * 1000; 863923c42c1SMike Galbraith tcsetattr(0, TCSANOW, &tc); 864923c42c1SMike Galbraith /* trash return*/ 865923c42c1SMike Galbraith getc(stdin); 86686470930SIngo Molnar 86786470930SIngo Molnar do { 86886470930SIngo Molnar print_sym_table(); 86986470930SIngo Molnar } while (!poll(&stdin_poll, 1, delay_msecs) == 1); 87086470930SIngo Molnar 871923c42c1SMike Galbraith c = getc(stdin); 872923c42c1SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 873923c42c1SMike Galbraith 874923c42c1SMike Galbraith handle_keypress(c); 875923c42c1SMike Galbraith goto repeat; 87686470930SIngo Molnar 87786470930SIngo Molnar return NULL; 87886470930SIngo Molnar } 87986470930SIngo Molnar 8802ab52083SAnton Blanchard /* Tag samples to be skipped. */ 881f37a291cSIngo Molnar static const char *skip_symbols[] = { 8822ab52083SAnton Blanchard "default_idle", 8832ab52083SAnton Blanchard "cpu_idle", 8842ab52083SAnton Blanchard "enter_idle", 8852ab52083SAnton Blanchard "exit_idle", 8862ab52083SAnton Blanchard "mwait_idle", 88759b90056SArnaldo Carvalho de Melo "mwait_idle_with_hints", 8888357275bSArnaldo Carvalho de Melo "poll_idle", 8893a3393efSAnton Blanchard "ppc64_runlatch_off", 8903a3393efSAnton Blanchard "pseries_dedicated_idle_sleep", 8912ab52083SAnton Blanchard NULL 8922ab52083SAnton Blanchard }; 8932ab52083SAnton Blanchard 894439d473bSArnaldo Carvalho de Melo static int symbol_filter(struct map *map, struct symbol *sym) 89586470930SIngo Molnar { 89686470930SIngo Molnar struct sym_entry *syme; 89786470930SIngo Molnar const char *name = sym->name; 8982ab52083SAnton Blanchard int i; 89986470930SIngo Molnar 9003a3393efSAnton Blanchard /* 9013a3393efSAnton Blanchard * ppc64 uses function descriptors and appends a '.' to the 9023a3393efSAnton Blanchard * start of every instruction address. Remove it. 9033a3393efSAnton Blanchard */ 9043a3393efSAnton Blanchard if (name[0] == '.') 9053a3393efSAnton Blanchard name++; 9063a3393efSAnton Blanchard 90786470930SIngo Molnar if (!strcmp(name, "_text") || 90886470930SIngo Molnar !strcmp(name, "_etext") || 90986470930SIngo Molnar !strcmp(name, "_sinittext") || 91086470930SIngo Molnar !strncmp("init_module", name, 11) || 91186470930SIngo Molnar !strncmp("cleanup_module", name, 14) || 91286470930SIngo Molnar strstr(name, "_text_start") || 91386470930SIngo Molnar strstr(name, "_text_end")) 91486470930SIngo Molnar return 1; 91586470930SIngo Molnar 91600a192b3SArnaldo Carvalho de Melo syme = symbol__priv(sym); 917439d473bSArnaldo Carvalho de Melo syme->map = map; 918923c42c1SMike Galbraith pthread_mutex_init(&syme->source_lock, NULL); 919923c42c1SMike Galbraith if (!sym_filter_entry && sym_filter && !strcmp(name, sym_filter)) 920923c42c1SMike Galbraith sym_filter_entry = syme; 921923c42c1SMike Galbraith 9222ab52083SAnton Blanchard for (i = 0; skip_symbols[i]; i++) { 9232ab52083SAnton Blanchard if (!strcmp(skip_symbols[i], name)) { 92486470930SIngo Molnar syme->skip = 1; 9252ab52083SAnton Blanchard break; 9262ab52083SAnton Blanchard } 9272ab52083SAnton Blanchard } 92886470930SIngo Molnar 92913cc5079SArnaldo Carvalho de Melo if (!syme->skip) 93013cc5079SArnaldo Carvalho de Melo syme->name_len = strlen(sym->name); 93113cc5079SArnaldo Carvalho de Melo 93286470930SIngo Molnar return 0; 93386470930SIngo Molnar } 93486470930SIngo Molnar 93586470930SIngo Molnar static int parse_symbols(void) 93686470930SIngo Molnar { 93700a192b3SArnaldo Carvalho de Melo if (dsos__load_kernel(vmlinux_name, symbol_filter, 1) <= 0) 93886470930SIngo Molnar return -1; 93986470930SIngo Molnar 94086470930SIngo Molnar if (dump_symtab) 941439d473bSArnaldo Carvalho de Melo dsos__fprintf(stderr); 94286470930SIngo Molnar 94386470930SIngo Molnar return 0; 94486470930SIngo Molnar } 94586470930SIngo Molnar 9465b2bb75aSArnaldo Carvalho de Melo static void event__process_sample(const event_t *self, int counter) 94786470930SIngo Molnar { 9485b2bb75aSArnaldo Carvalho de Melo u64 ip = self->ip.ip; 949439d473bSArnaldo Carvalho de Melo struct map *map; 9505b2bb75aSArnaldo Carvalho de Melo struct sym_entry *syme; 9515b2bb75aSArnaldo Carvalho de Melo struct symbol *sym; 9528ffcda17SArnaldo Carvalho de Melo u8 origin = self->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 95386470930SIngo Molnar 9548ffcda17SArnaldo Carvalho de Melo switch (origin) { 9555b2bb75aSArnaldo Carvalho de Melo case PERF_RECORD_MISC_USER: { 9568ffcda17SArnaldo Carvalho de Melo struct thread *thread; 9575b2bb75aSArnaldo Carvalho de Melo 9588ffcda17SArnaldo Carvalho de Melo if (hide_user_symbols) 9598ffcda17SArnaldo Carvalho de Melo return; 9608ffcda17SArnaldo Carvalho de Melo 9618ffcda17SArnaldo Carvalho de Melo thread = threads__findnew(self->ip.pid); 9625b2bb75aSArnaldo Carvalho de Melo if (thread == NULL) 9635b2bb75aSArnaldo Carvalho de Melo return; 9645b2bb75aSArnaldo Carvalho de Melo 9655b2bb75aSArnaldo Carvalho de Melo map = thread__find_map(thread, ip); 9665b2bb75aSArnaldo Carvalho de Melo if (map != NULL) { 9675b2bb75aSArnaldo Carvalho de Melo ip = map->map_ip(map, ip); 96866bd8424SArnaldo Carvalho de Melo sym = map__find_symbol(map, ip, symbol_filter); 9695b2bb75aSArnaldo Carvalho de Melo if (sym == NULL) 9705b2bb75aSArnaldo Carvalho de Melo return; 9715b2bb75aSArnaldo Carvalho de Melo userspace_samples++; 9725b2bb75aSArnaldo Carvalho de Melo break; 9735b2bb75aSArnaldo Carvalho de Melo } 9745b2bb75aSArnaldo Carvalho de Melo } 9755b2bb75aSArnaldo Carvalho de Melo /* 9765b2bb75aSArnaldo Carvalho de Melo * If this is outside of all known maps, 9775b2bb75aSArnaldo Carvalho de Melo * and is a negative address, try to look it 9785b2bb75aSArnaldo Carvalho de Melo * up in the kernel dso, as it might be a 9795b2bb75aSArnaldo Carvalho de Melo * vsyscall or vdso (which executes in user-mode). 9805b2bb75aSArnaldo Carvalho de Melo */ 9815b2bb75aSArnaldo Carvalho de Melo if ((long long)ip >= 0) 9825b2bb75aSArnaldo Carvalho de Melo return; 9835b2bb75aSArnaldo Carvalho de Melo /* Fall thru */ 9845b2bb75aSArnaldo Carvalho de Melo case PERF_RECORD_MISC_KERNEL: 9858ffcda17SArnaldo Carvalho de Melo if (hide_kernel_symbols) 9868ffcda17SArnaldo Carvalho de Melo return; 9878ffcda17SArnaldo Carvalho de Melo 9885b2bb75aSArnaldo Carvalho de Melo sym = kernel_maps__find_symbol(ip, &map); 9895b2bb75aSArnaldo Carvalho de Melo if (sym == NULL) 9905b2bb75aSArnaldo Carvalho de Melo return; 9915b2bb75aSArnaldo Carvalho de Melo break; 9925b2bb75aSArnaldo Carvalho de Melo default: 9935b2bb75aSArnaldo Carvalho de Melo return; 9945b2bb75aSArnaldo Carvalho de Melo } 9955b2bb75aSArnaldo Carvalho de Melo 99600a192b3SArnaldo Carvalho de Melo syme = symbol__priv(sym); 99786470930SIngo Molnar 99886470930SIngo Molnar if (!syme->skip) { 99986470930SIngo Molnar syme->count[counter]++; 10008ffcda17SArnaldo Carvalho de Melo syme->origin = origin; 1001923c42c1SMike Galbraith record_precise_ip(syme, counter, ip); 100286470930SIngo Molnar pthread_mutex_lock(&active_symbols_lock); 100386470930SIngo Molnar if (list_empty(&syme->node) || !syme->node.next) 100486470930SIngo Molnar __list_insert_active_sym(syme); 100586470930SIngo Molnar pthread_mutex_unlock(&active_symbols_lock); 10065b2bb75aSArnaldo Carvalho de Melo ++samples; 100786470930SIngo Molnar return; 100886470930SIngo Molnar } 100986470930SIngo Molnar } 101086470930SIngo Molnar 10115b2bb75aSArnaldo Carvalho de Melo static void event__process_mmap(event_t *self) 101286470930SIngo Molnar { 10135b2bb75aSArnaldo Carvalho de Melo struct thread *thread = threads__findnew(self->mmap.pid); 101486470930SIngo Molnar 10155b2bb75aSArnaldo Carvalho de Melo if (thread != NULL) { 101600a192b3SArnaldo Carvalho de Melo struct map *map = map__new(&self->mmap, NULL, 0); 10175b2bb75aSArnaldo Carvalho de Melo if (map != NULL) 10185b2bb75aSArnaldo Carvalho de Melo thread__insert_map(thread, map); 10195b2bb75aSArnaldo Carvalho de Melo } 102086470930SIngo Molnar } 102186470930SIngo Molnar 10225b2bb75aSArnaldo Carvalho de Melo static void event__process_comm(event_t *self) 10235b2bb75aSArnaldo Carvalho de Melo { 10245b2bb75aSArnaldo Carvalho de Melo struct thread *thread = threads__findnew(self->comm.pid); 10255b2bb75aSArnaldo Carvalho de Melo 10265b2bb75aSArnaldo Carvalho de Melo if (thread != NULL) 10275b2bb75aSArnaldo Carvalho de Melo thread__set_comm(thread, self->comm.comm); 10285b2bb75aSArnaldo Carvalho de Melo } 10295b2bb75aSArnaldo Carvalho de Melo 10305b2bb75aSArnaldo Carvalho de Melo static int event__process(event_t *event) 10315b2bb75aSArnaldo Carvalho de Melo { 10325b2bb75aSArnaldo Carvalho de Melo switch (event->header.type) { 10335b2bb75aSArnaldo Carvalho de Melo case PERF_RECORD_COMM: 10345b2bb75aSArnaldo Carvalho de Melo event__process_comm(event); 10355b2bb75aSArnaldo Carvalho de Melo break; 10365b2bb75aSArnaldo Carvalho de Melo case PERF_RECORD_MMAP: 10375b2bb75aSArnaldo Carvalho de Melo event__process_mmap(event); 10385b2bb75aSArnaldo Carvalho de Melo break; 10395b2bb75aSArnaldo Carvalho de Melo default: 10405b2bb75aSArnaldo Carvalho de Melo break; 10415b2bb75aSArnaldo Carvalho de Melo } 10425b2bb75aSArnaldo Carvalho de Melo 10435b2bb75aSArnaldo Carvalho de Melo return 0; 104486470930SIngo Molnar } 104586470930SIngo Molnar 104686470930SIngo Molnar struct mmap_data { 104786470930SIngo Molnar int counter; 104886470930SIngo Molnar void *base; 1049f37a291cSIngo Molnar int mask; 105086470930SIngo Molnar unsigned int prev; 105186470930SIngo Molnar }; 105286470930SIngo Molnar 105386470930SIngo Molnar static unsigned int mmap_read_head(struct mmap_data *md) 105486470930SIngo Molnar { 1055cdd6c482SIngo Molnar struct perf_event_mmap_page *pc = md->base; 105686470930SIngo Molnar int head; 105786470930SIngo Molnar 105886470930SIngo Molnar head = pc->data_head; 105986470930SIngo Molnar rmb(); 106086470930SIngo Molnar 106186470930SIngo Molnar return head; 106286470930SIngo Molnar } 106386470930SIngo Molnar 10642f01190aSFrederic Weisbecker static void mmap_read_counter(struct mmap_data *md) 106586470930SIngo Molnar { 106686470930SIngo Molnar unsigned int head = mmap_read_head(md); 106786470930SIngo Molnar unsigned int old = md->prev; 106886470930SIngo Molnar unsigned char *data = md->base + page_size; 106986470930SIngo Molnar int diff; 107086470930SIngo Molnar 107186470930SIngo Molnar /* 107286470930SIngo Molnar * If we're further behind than half the buffer, there's a chance 107386470930SIngo Molnar * the writer will bite our tail and mess up the samples under us. 107486470930SIngo Molnar * 107586470930SIngo Molnar * If we somehow ended up ahead of the head, we got messed up. 107686470930SIngo Molnar * 107786470930SIngo Molnar * In either case, truncate and restart at head. 107886470930SIngo Molnar */ 107986470930SIngo Molnar diff = head - old; 108086470930SIngo Molnar if (diff > md->mask / 2 || diff < 0) { 1081f4f0b418SMike Galbraith fprintf(stderr, "WARNING: failed to keep up with mmap data.\n"); 108286470930SIngo Molnar 108386470930SIngo Molnar /* 108486470930SIngo Molnar * head points to a known good entry, start there. 108586470930SIngo Molnar */ 108686470930SIngo Molnar old = head; 108786470930SIngo Molnar } 108886470930SIngo Molnar 108986470930SIngo Molnar for (; old != head;) { 109086470930SIngo Molnar event_t *event = (event_t *)&data[old & md->mask]; 109186470930SIngo Molnar 109286470930SIngo Molnar event_t event_copy; 109386470930SIngo Molnar 109486470930SIngo Molnar size_t size = event->header.size; 109586470930SIngo Molnar 109686470930SIngo Molnar /* 109786470930SIngo Molnar * Event straddles the mmap boundary -- header should always 109886470930SIngo Molnar * be inside due to u64 alignment of output. 109986470930SIngo Molnar */ 110086470930SIngo Molnar if ((old & md->mask) + size != ((old + size) & md->mask)) { 110186470930SIngo Molnar unsigned int offset = old; 110286470930SIngo Molnar unsigned int len = min(sizeof(*event), size), cpy; 110386470930SIngo Molnar void *dst = &event_copy; 110486470930SIngo Molnar 110586470930SIngo Molnar do { 110686470930SIngo Molnar cpy = min(md->mask + 1 - (offset & md->mask), len); 110786470930SIngo Molnar memcpy(dst, &data[offset & md->mask], cpy); 110886470930SIngo Molnar offset += cpy; 110986470930SIngo Molnar dst += cpy; 111086470930SIngo Molnar len -= cpy; 111186470930SIngo Molnar } while (len); 111286470930SIngo Molnar 111386470930SIngo Molnar event = &event_copy; 111486470930SIngo Molnar } 111586470930SIngo Molnar 11165b2bb75aSArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) 11175b2bb75aSArnaldo Carvalho de Melo event__process_sample(event, md->counter); 11185b2bb75aSArnaldo Carvalho de Melo else 11195b2bb75aSArnaldo Carvalho de Melo event__process(event); 112086470930SIngo Molnar old += size; 112186470930SIngo Molnar } 112286470930SIngo Molnar 112386470930SIngo Molnar md->prev = old; 112486470930SIngo Molnar } 112586470930SIngo Molnar 112686470930SIngo Molnar static struct pollfd event_array[MAX_NR_CPUS * MAX_COUNTERS]; 112786470930SIngo Molnar static struct mmap_data mmap_array[MAX_NR_CPUS][MAX_COUNTERS]; 112886470930SIngo Molnar 11292f01190aSFrederic Weisbecker static void mmap_read(void) 11302f01190aSFrederic Weisbecker { 11312f01190aSFrederic Weisbecker int i, counter; 11322f01190aSFrederic Weisbecker 11332f01190aSFrederic Weisbecker for (i = 0; i < nr_cpus; i++) { 11342f01190aSFrederic Weisbecker for (counter = 0; counter < nr_counters; counter++) 11352f01190aSFrederic Weisbecker mmap_read_counter(&mmap_array[i][counter]); 11362f01190aSFrederic Weisbecker } 11372f01190aSFrederic Weisbecker } 11382f01190aSFrederic Weisbecker 1139716c69feSIngo Molnar int nr_poll; 1140716c69feSIngo Molnar int group_fd; 1141716c69feSIngo Molnar 1142716c69feSIngo Molnar static void start_counter(int i, int counter) 114386470930SIngo Molnar { 1144cdd6c482SIngo Molnar struct perf_event_attr *attr; 11450fdc7e67SMike Galbraith int cpu; 114686470930SIngo Molnar 114786470930SIngo Molnar cpu = profile_cpu; 114886470930SIngo Molnar if (target_pid == -1 && profile_cpu == -1) 114986470930SIngo Molnar cpu = i; 115086470930SIngo Molnar 115186470930SIngo Molnar attr = attrs + counter; 115286470930SIngo Molnar 115386470930SIngo Molnar attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID; 11547e4ff9e3SMike Galbraith 11557e4ff9e3SMike Galbraith if (freq) { 11567e4ff9e3SMike Galbraith attr->sample_type |= PERF_SAMPLE_PERIOD; 11577e4ff9e3SMike Galbraith attr->freq = 1; 11587e4ff9e3SMike Galbraith attr->sample_freq = freq; 11597e4ff9e3SMike Galbraith } 11607e4ff9e3SMike Galbraith 11610fdc7e67SMike Galbraith attr->inherit = (cpu < 0) && inherit; 11625b2bb75aSArnaldo Carvalho de Melo attr->mmap = 1; 116386470930SIngo Molnar 1164716c69feSIngo Molnar try_again: 1165cdd6c482SIngo Molnar fd[i][counter] = sys_perf_event_open(attr, target_pid, cpu, group_fd, 0); 1166716c69feSIngo Molnar 116786470930SIngo Molnar if (fd[i][counter] < 0) { 116886470930SIngo Molnar int err = errno; 116986470930SIngo Molnar 1170c10edee2SPekka Enberg if (err == EPERM || err == EACCES) 1171716c69feSIngo Molnar die("No permission - are you root?\n"); 1172716c69feSIngo Molnar /* 1173716c69feSIngo Molnar * If it's cycles then fall back to hrtimer 1174716c69feSIngo Molnar * based cpu-clock-tick sw counter, which 1175716c69feSIngo Molnar * is always available even if no PMU support: 1176716c69feSIngo Molnar */ 1177716c69feSIngo Molnar if (attr->type == PERF_TYPE_HARDWARE 1178f4dbfa8fSPeter Zijlstra && attr->config == PERF_COUNT_HW_CPU_CYCLES) { 1179716c69feSIngo Molnar 11803da297a6SIngo Molnar if (verbose) 1181716c69feSIngo Molnar warning(" ... trying to fall back to cpu-clock-ticks\n"); 11823da297a6SIngo Molnar 1183716c69feSIngo Molnar attr->type = PERF_TYPE_SOFTWARE; 1184f4dbfa8fSPeter Zijlstra attr->config = PERF_COUNT_SW_CPU_CLOCK; 1185716c69feSIngo Molnar goto try_again; 1186716c69feSIngo Molnar } 118730c806a0SIngo Molnar printf("\n"); 118830c806a0SIngo Molnar error("perfcounter syscall returned with %d (%s)\n", 118930c806a0SIngo Molnar fd[i][counter], strerror(err)); 1190cdd6c482SIngo Molnar die("No CONFIG_PERF_EVENTS=y kernel support configured?\n"); 119186470930SIngo Molnar exit(-1); 119286470930SIngo Molnar } 119386470930SIngo Molnar assert(fd[i][counter] >= 0); 119486470930SIngo Molnar fcntl(fd[i][counter], F_SETFL, O_NONBLOCK); 119586470930SIngo Molnar 119686470930SIngo Molnar /* 119786470930SIngo Molnar * First counter acts as the group leader: 119886470930SIngo Molnar */ 119986470930SIngo Molnar if (group && group_fd == -1) 120086470930SIngo Molnar group_fd = fd[i][counter]; 120186470930SIngo Molnar 120286470930SIngo Molnar event_array[nr_poll].fd = fd[i][counter]; 120386470930SIngo Molnar event_array[nr_poll].events = POLLIN; 120486470930SIngo Molnar nr_poll++; 120586470930SIngo Molnar 120686470930SIngo Molnar mmap_array[i][counter].counter = counter; 120786470930SIngo Molnar mmap_array[i][counter].prev = 0; 120886470930SIngo Molnar mmap_array[i][counter].mask = mmap_pages*page_size - 1; 120986470930SIngo Molnar mmap_array[i][counter].base = mmap(NULL, (mmap_pages+1)*page_size, 121086470930SIngo Molnar PROT_READ, MAP_SHARED, fd[i][counter], 0); 121186470930SIngo Molnar if (mmap_array[i][counter].base == MAP_FAILED) 121286470930SIngo Molnar die("failed to mmap with %d (%s)\n", errno, strerror(errno)); 121386470930SIngo Molnar } 1214716c69feSIngo Molnar 1215716c69feSIngo Molnar static int __cmd_top(void) 1216716c69feSIngo Molnar { 1217716c69feSIngo Molnar pthread_t thread; 1218716c69feSIngo Molnar int i, counter; 1219716c69feSIngo Molnar int ret; 1220716c69feSIngo Molnar 12215b2bb75aSArnaldo Carvalho de Melo if (target_pid != -1) 12225b2bb75aSArnaldo Carvalho de Melo event__synthesize_thread(target_pid, event__process); 12235b2bb75aSArnaldo Carvalho de Melo else 12245b2bb75aSArnaldo Carvalho de Melo event__synthesize_threads(event__process); 12255b2bb75aSArnaldo Carvalho de Melo 1226716c69feSIngo Molnar for (i = 0; i < nr_cpus; i++) { 1227716c69feSIngo Molnar group_fd = -1; 1228716c69feSIngo Molnar for (counter = 0; counter < nr_counters; counter++) 1229716c69feSIngo Molnar start_counter(i, counter); 123086470930SIngo Molnar } 123186470930SIngo Molnar 12322f01190aSFrederic Weisbecker /* Wait for a minimal set of events before starting the snapshot */ 12332f01190aSFrederic Weisbecker poll(event_array, nr_poll, 100); 12342f01190aSFrederic Weisbecker 12352f01190aSFrederic Weisbecker mmap_read(); 12362f01190aSFrederic Weisbecker 123786470930SIngo Molnar if (pthread_create(&thread, NULL, display_thread, NULL)) { 123886470930SIngo Molnar printf("Could not create display thread.\n"); 123986470930SIngo Molnar exit(-1); 124086470930SIngo Molnar } 124186470930SIngo Molnar 124286470930SIngo Molnar if (realtime_prio) { 124386470930SIngo Molnar struct sched_param param; 124486470930SIngo Molnar 124586470930SIngo Molnar param.sched_priority = realtime_prio; 124686470930SIngo Molnar if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { 124786470930SIngo Molnar printf("Could not set realtime priority.\n"); 124886470930SIngo Molnar exit(-1); 124986470930SIngo Molnar } 125086470930SIngo Molnar } 125186470930SIngo Molnar 125286470930SIngo Molnar while (1) { 125386470930SIngo Molnar int hits = samples; 125486470930SIngo Molnar 12552f01190aSFrederic Weisbecker mmap_read(); 125686470930SIngo Molnar 125786470930SIngo Molnar if (hits == samples) 125886470930SIngo Molnar ret = poll(event_array, nr_poll, 100); 125986470930SIngo Molnar } 126086470930SIngo Molnar 126186470930SIngo Molnar return 0; 126286470930SIngo Molnar } 126386470930SIngo Molnar 126486470930SIngo Molnar static const char * const top_usage[] = { 126586470930SIngo Molnar "perf top [<options>]", 126686470930SIngo Molnar NULL 126786470930SIngo Molnar }; 126886470930SIngo Molnar 126986470930SIngo Molnar static const struct option options[] = { 127086470930SIngo Molnar OPT_CALLBACK('e', "event", NULL, "event", 127186470930SIngo Molnar "event selector. use 'perf list' to list available events", 127286470930SIngo Molnar parse_events), 127386470930SIngo Molnar OPT_INTEGER('c', "count", &default_interval, 127486470930SIngo Molnar "event period to sample"), 127586470930SIngo Molnar OPT_INTEGER('p', "pid", &target_pid, 127686470930SIngo Molnar "profile events on existing pid"), 127786470930SIngo Molnar OPT_BOOLEAN('a', "all-cpus", &system_wide, 127886470930SIngo Molnar "system-wide collection from all CPUs"), 127986470930SIngo Molnar OPT_INTEGER('C', "CPU", &profile_cpu, 128086470930SIngo Molnar "CPU to profile on"), 128183a0944fSIngo Molnar OPT_STRING('k', "vmlinux", &vmlinux_name, "file", "vmlinux pathname"), 12828ffcda17SArnaldo Carvalho de Melo OPT_BOOLEAN('K', "hide_kernel_symbols", &hide_kernel_symbols, 12838ffcda17SArnaldo Carvalho de Melo "hide kernel symbols"), 128486470930SIngo Molnar OPT_INTEGER('m', "mmap-pages", &mmap_pages, 128586470930SIngo Molnar "number of mmap data pages"), 128686470930SIngo Molnar OPT_INTEGER('r', "realtime", &realtime_prio, 128786470930SIngo Molnar "collect data with this RT SCHED_FIFO priority"), 128886470930SIngo Molnar OPT_INTEGER('d', "delay", &delay_secs, 128986470930SIngo Molnar "number of seconds to delay between refreshes"), 129086470930SIngo Molnar OPT_BOOLEAN('D', "dump-symtab", &dump_symtab, 129186470930SIngo Molnar "dump the symbol table used for profiling"), 129286470930SIngo Molnar OPT_INTEGER('f', "count-filter", &count_filter, 129386470930SIngo Molnar "only display functions with more events than this"), 129486470930SIngo Molnar OPT_BOOLEAN('g', "group", &group, 129586470930SIngo Molnar "put the counters into a counter group"), 12960fdc7e67SMike Galbraith OPT_BOOLEAN('i', "inherit", &inherit, 12970fdc7e67SMike Galbraith "child tasks inherit counters"), 1298923c42c1SMike Galbraith OPT_STRING('s', "sym-annotate", &sym_filter, "symbol name", 1299923c42c1SMike Galbraith "symbol to annotate - requires -k option"), 13001f208ea6SAnton Blanchard OPT_BOOLEAN('z', "zero", &zero, 130186470930SIngo Molnar "zero history across updates"), 130286470930SIngo Molnar OPT_INTEGER('F', "freq", &freq, 130386470930SIngo Molnar "profile at this frequency"), 130486470930SIngo Molnar OPT_INTEGER('E', "entries", &print_entries, 130586470930SIngo Molnar "display this many functions"), 13068ffcda17SArnaldo Carvalho de Melo OPT_BOOLEAN('U', "hide_user_symbols", &hide_user_symbols, 13078ffcda17SArnaldo Carvalho de Melo "hide user symbols"), 13083da297a6SIngo Molnar OPT_BOOLEAN('v', "verbose", &verbose, 13093da297a6SIngo Molnar "be more verbose (show counter open errors, etc)"), 131086470930SIngo Molnar OPT_END() 131186470930SIngo Molnar }; 131286470930SIngo Molnar 1313f37a291cSIngo Molnar int cmd_top(int argc, const char **argv, const char *prefix __used) 131486470930SIngo Molnar { 131586470930SIngo Molnar int counter; 131686470930SIngo Molnar 131700a192b3SArnaldo Carvalho de Melo symbol__init(sizeof(struct sym_entry)); 131842976487SMike Galbraith 131986470930SIngo Molnar page_size = sysconf(_SC_PAGE_SIZE); 132086470930SIngo Molnar 132186470930SIngo Molnar argc = parse_options(argc, argv, options, top_usage, 0); 132286470930SIngo Molnar if (argc) 132386470930SIngo Molnar usage_with_options(top_usage, options); 132486470930SIngo Molnar 132586470930SIngo Molnar /* CPU and PID are mutually exclusive */ 132686470930SIngo Molnar if (target_pid != -1 && profile_cpu != -1) { 132786470930SIngo Molnar printf("WARNING: PID switch overriding CPU\n"); 132886470930SIngo Molnar sleep(1); 132986470930SIngo Molnar profile_cpu = -1; 133086470930SIngo Molnar } 133186470930SIngo Molnar 133286470930SIngo Molnar if (!nr_counters) 133386470930SIngo Molnar nr_counters = 1; 133486470930SIngo Molnar 133586470930SIngo Molnar if (delay_secs < 1) 133686470930SIngo Molnar delay_secs = 1; 133786470930SIngo Molnar 133886470930SIngo Molnar parse_symbols(); 1339923c42c1SMike Galbraith parse_source(sym_filter_entry); 134086470930SIngo Molnar 13417e4ff9e3SMike Galbraith 13427e4ff9e3SMike Galbraith /* 13437e4ff9e3SMike Galbraith * User specified count overrides default frequency. 13447e4ff9e3SMike Galbraith */ 13457e4ff9e3SMike Galbraith if (default_interval) 13467e4ff9e3SMike Galbraith freq = 0; 13477e4ff9e3SMike Galbraith else if (freq) { 13487e4ff9e3SMike Galbraith default_interval = freq; 13497e4ff9e3SMike Galbraith } else { 13507e4ff9e3SMike Galbraith fprintf(stderr, "frequency and count are zero, aborting\n"); 13517e4ff9e3SMike Galbraith exit(EXIT_FAILURE); 13527e4ff9e3SMike Galbraith } 13537e4ff9e3SMike Galbraith 135486470930SIngo Molnar /* 135586470930SIngo Molnar * Fill in the ones not specifically initialized via -c: 135686470930SIngo Molnar */ 135786470930SIngo Molnar for (counter = 0; counter < nr_counters; counter++) { 135886470930SIngo Molnar if (attrs[counter].sample_period) 135986470930SIngo Molnar continue; 136086470930SIngo Molnar 136186470930SIngo Molnar attrs[counter].sample_period = default_interval; 136286470930SIngo Molnar } 136386470930SIngo Molnar 136486470930SIngo Molnar nr_cpus = sysconf(_SC_NPROCESSORS_ONLN); 136586470930SIngo Molnar assert(nr_cpus <= MAX_NR_CPUS); 136686470930SIngo Molnar assert(nr_cpus >= 0); 136786470930SIngo Molnar 136886470930SIngo Molnar if (target_pid != -1 || profile_cpu != -1) 136986470930SIngo Molnar nr_cpus = 1; 137086470930SIngo Molnar 137113cc5079SArnaldo Carvalho de Melo get_term_dimensions(&winsize); 13723b6ed988SArnaldo Carvalho de Melo if (print_entries == 0) { 137313cc5079SArnaldo Carvalho de Melo update_print_entries(&winsize); 13743b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, sig_winch_handler); 13753b6ed988SArnaldo Carvalho de Melo } 13763b6ed988SArnaldo Carvalho de Melo 137786470930SIngo Molnar return __cmd_top(); 137886470930SIngo Molnar } 1379