186470930SIngo Molnar /* 286470930SIngo Molnar * builtin-top.c 386470930SIngo Molnar * 486470930SIngo Molnar * Builtin top command: Display a continuously updated profile of 586470930SIngo Molnar * any workload, CPU or specific PID. 686470930SIngo Molnar * 786470930SIngo Molnar * Copyright (C) 2008, Red Hat Inc, Ingo Molnar <mingo@redhat.com> 8ab81f3fdSArnaldo Carvalho de Melo * 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> 986470930SIngo Molnar * 1086470930SIngo Molnar * Improvements and fixes by: 1186470930SIngo Molnar * 1286470930SIngo Molnar * Arjan van de Ven <arjan@linux.intel.com> 1386470930SIngo Molnar * Yanmin Zhang <yanmin.zhang@intel.com> 1486470930SIngo Molnar * Wu Fengguang <fengguang.wu@intel.com> 1586470930SIngo Molnar * Mike Galbraith <efault@gmx.de> 1686470930SIngo Molnar * Paul Mackerras <paulus@samba.org> 1786470930SIngo Molnar * 1886470930SIngo Molnar * Released under the GPL v2. (and only v2, not any later version) 1986470930SIngo Molnar */ 2086470930SIngo Molnar #include "builtin.h" 2186470930SIngo Molnar 2286470930SIngo Molnar #include "perf.h" 2386470930SIngo Molnar 2436532461SArnaldo Carvalho de Melo #include "util/annotate.h" 25c0443df1SArnaldo Carvalho de Melo #include "util/cache.h" 2686470930SIngo Molnar #include "util/color.h" 27361c99a6SArnaldo Carvalho de Melo #include "util/evlist.h" 2869aad6f1SArnaldo Carvalho de Melo #include "util/evsel.h" 29b0a7d1a0SArnaldo Carvalho de Melo #include "util/machine.h" 30b3165f41SArnaldo Carvalho de Melo #include "util/session.h" 31b3165f41SArnaldo Carvalho de Melo #include "util/symbol.h" 32439d473bSArnaldo Carvalho de Melo #include "util/thread.h" 33fd78260bSArnaldo Carvalho de Melo #include "util/thread_map.h" 348c3e10ebSArnaldo Carvalho de Melo #include "util/top.h" 3586470930SIngo Molnar #include "util/util.h" 3643cbcd8aSArnaldo Carvalho de Melo #include <linux/rbtree.h> 3786470930SIngo Molnar #include "util/parse-options.h" 3886470930SIngo Molnar #include "util/parse-events.h" 39a12b51c4SPaul Mackerras #include "util/cpumap.h" 4069aad6f1SArnaldo Carvalho de Melo #include "util/xyarray.h" 41ab81f3fdSArnaldo Carvalho de Melo #include "util/sort.h" 426b118e92SDavid Ahern #include "util/intlist.h" 430d3942dbSSukadev Bhattiprolu #include "arch/common.h" 4486470930SIngo Molnar 458f28827aSFrederic Weisbecker #include "util/debug.h" 468f28827aSFrederic Weisbecker 4786470930SIngo Molnar #include <assert.h> 4831d68e7bSArnaldo Carvalho de Melo #include <elf.h> 4986470930SIngo Molnar #include <fcntl.h> 5086470930SIngo Molnar 5186470930SIngo Molnar #include <stdio.h> 52923c42c1SMike Galbraith #include <termios.h> 53923c42c1SMike Galbraith #include <unistd.h> 549486aa38SArnaldo Carvalho de Melo #include <inttypes.h> 5586470930SIngo Molnar 5686470930SIngo Molnar #include <errno.h> 5786470930SIngo Molnar #include <time.h> 5886470930SIngo Molnar #include <sched.h> 5986470930SIngo Molnar 6086470930SIngo Molnar #include <sys/syscall.h> 6186470930SIngo Molnar #include <sys/ioctl.h> 6286470930SIngo Molnar #include <sys/poll.h> 6386470930SIngo Molnar #include <sys/prctl.h> 6486470930SIngo Molnar #include <sys/wait.h> 6586470930SIngo Molnar #include <sys/uio.h> 6631d68e7bSArnaldo Carvalho de Melo #include <sys/utsname.h> 6786470930SIngo Molnar #include <sys/mman.h> 6886470930SIngo Molnar 6986470930SIngo Molnar #include <linux/unistd.h> 7086470930SIngo Molnar #include <linux/types.h> 7186470930SIngo Molnar 7211859e82SArnaldo Carvalho de Melo static volatile int done; 7311859e82SArnaldo Carvalho de Melo 74933cbb1cSNamhyung Kim #define HEADER_LINE_NR 5 75933cbb1cSNamhyung Kim 761758af10SArnaldo Carvalho de Melo static void perf_top__update_print_entries(struct perf_top *top) 773b6ed988SArnaldo Carvalho de Melo { 78933cbb1cSNamhyung Kim top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; 793b6ed988SArnaldo Carvalho de Melo } 803b6ed988SArnaldo Carvalho de Melo 811d037ca1SIrina Tirdea static void perf_top__sig_winch(int sig __maybe_unused, 821d037ca1SIrina Tirdea siginfo_t *info __maybe_unused, void *arg) 833b6ed988SArnaldo Carvalho de Melo { 841758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 851758af10SArnaldo Carvalho de Melo 861758af10SArnaldo Carvalho de Melo get_term_dimensions(&top->winsize); 871758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(top); 883b6ed988SArnaldo Carvalho de Melo } 893b6ed988SArnaldo Carvalho de Melo 901758af10SArnaldo Carvalho de Melo static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) 91923c42c1SMike Galbraith { 92923c42c1SMike Galbraith struct symbol *sym; 93ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 94439d473bSArnaldo Carvalho de Melo struct map *map; 9536532461SArnaldo Carvalho de Melo int err = -1; 96923c42c1SMike Galbraith 97ab81f3fdSArnaldo Carvalho de Melo if (!he || !he->ms.sym) 98b0a9ab62SArnaldo Carvalho de Melo return -1; 99b0a9ab62SArnaldo Carvalho de Melo 100ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 101ab81f3fdSArnaldo Carvalho de Melo map = he->ms.map; 102b0a9ab62SArnaldo Carvalho de Melo 103b0a9ab62SArnaldo Carvalho de Melo /* 104b0a9ab62SArnaldo Carvalho de Melo * We can't annotate with just /proc/kallsyms 105b0a9ab62SArnaldo Carvalho de Melo */ 106bbb7f846SAdrian Hunter if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && 107bbb7f846SAdrian Hunter !dso__is_kcore(map->dso)) { 108ce6f4fabSArnaldo Carvalho de Melo pr_err("Can't annotate %s: No vmlinux file was found in the " 109ce6f4fabSArnaldo Carvalho de Melo "path\n", sym->name); 110ce6f4fabSArnaldo Carvalho de Melo sleep(1); 111b0a9ab62SArnaldo Carvalho de Melo return -1; 112b269876cSArnaldo Carvalho de Melo } 113b269876cSArnaldo Carvalho de Melo 114ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 115ce6f4fabSArnaldo Carvalho de Melo if (notes->src != NULL) { 116ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 117923c42c1SMike Galbraith goto out_assign; 118923c42c1SMike Galbraith } 119923c42c1SMike Galbraith 120ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 121923c42c1SMike Galbraith 122d04b35f8SArnaldo Carvalho de Melo if (symbol__alloc_hist(sym) < 0) { 123c97cf422SArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 12436532461SArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 12536532461SArnaldo Carvalho de Melo sym->name); 126ce6f4fabSArnaldo Carvalho de Melo sleep(1); 127c97cf422SArnaldo Carvalho de Melo return err; 128923c42c1SMike Galbraith } 12936532461SArnaldo Carvalho de Melo 130ab81f3fdSArnaldo Carvalho de Melo err = symbol__annotate(sym, map, 0); 13136532461SArnaldo Carvalho de Melo if (err == 0) { 132923c42c1SMike Galbraith out_assign: 1331758af10SArnaldo Carvalho de Melo top->sym_filter_entry = he; 13436532461SArnaldo Carvalho de Melo } 135c97cf422SArnaldo Carvalho de Melo 136ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 13736532461SArnaldo Carvalho de Melo return err; 138923c42c1SMike Galbraith } 139923c42c1SMike Galbraith 140ab81f3fdSArnaldo Carvalho de Melo static void __zero_source_counters(struct hist_entry *he) 141923c42c1SMike Galbraith { 142ab81f3fdSArnaldo Carvalho de Melo struct symbol *sym = he->ms.sym; 14336532461SArnaldo Carvalho de Melo symbol__annotate_zero_histograms(sym); 144923c42c1SMike Galbraith } 145923c42c1SMike Galbraith 14631d68e7bSArnaldo Carvalho de Melo static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) 14731d68e7bSArnaldo Carvalho de Melo { 14831d68e7bSArnaldo Carvalho de Melo struct utsname uts; 14931d68e7bSArnaldo Carvalho de Melo int err = uname(&uts); 15031d68e7bSArnaldo Carvalho de Melo 15131d68e7bSArnaldo Carvalho de Melo ui__warning("Out of bounds address found:\n\n" 15231d68e7bSArnaldo Carvalho de Melo "Addr: %" PRIx64 "\n" 15331d68e7bSArnaldo Carvalho de Melo "DSO: %s %c\n" 15431d68e7bSArnaldo Carvalho de Melo "Map: %" PRIx64 "-%" PRIx64 "\n" 15531d68e7bSArnaldo Carvalho de Melo "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" 15631d68e7bSArnaldo Carvalho de Melo "Arch: %s\n" 15731d68e7bSArnaldo Carvalho de Melo "Kernel: %s\n" 15831d68e7bSArnaldo Carvalho de Melo "Tools: %s\n\n" 15931d68e7bSArnaldo Carvalho de Melo "Not all samples will be on the annotation output.\n\n" 16031d68e7bSArnaldo Carvalho de Melo "Please report to linux-kernel@vger.kernel.org\n", 16131d68e7bSArnaldo Carvalho de Melo ip, map->dso->long_name, dso__symtab_origin(map->dso), 16231d68e7bSArnaldo Carvalho de Melo map->start, map->end, sym->start, sym->end, 16331d68e7bSArnaldo Carvalho de Melo sym->binding == STB_GLOBAL ? 'g' : 16431d68e7bSArnaldo Carvalho de Melo sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, 16531d68e7bSArnaldo Carvalho de Melo err ? "[unknown]" : uts.machine, 16631d68e7bSArnaldo Carvalho de Melo err ? "[unknown]" : uts.release, perf_version_string); 16731d68e7bSArnaldo Carvalho de Melo if (use_browser <= 0) 16831d68e7bSArnaldo Carvalho de Melo sleep(5); 16931d68e7bSArnaldo Carvalho de Melo 17031d68e7bSArnaldo Carvalho de Melo map->erange_warned = true; 17131d68e7bSArnaldo Carvalho de Melo } 17231d68e7bSArnaldo Carvalho de Melo 1731758af10SArnaldo Carvalho de Melo static void perf_top__record_precise_ip(struct perf_top *top, 1741758af10SArnaldo Carvalho de Melo struct hist_entry *he, 1751758af10SArnaldo Carvalho de Melo int counter, u64 ip) 176923c42c1SMike Galbraith { 177ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 178ce6f4fabSArnaldo Carvalho de Melo struct symbol *sym; 17931d68e7bSArnaldo Carvalho de Melo int err; 180ce6f4fabSArnaldo Carvalho de Melo 181ab81f3fdSArnaldo Carvalho de Melo if (he == NULL || he->ms.sym == NULL || 1821758af10SArnaldo Carvalho de Melo ((top->sym_filter_entry == NULL || 1831758af10SArnaldo Carvalho de Melo top->sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1)) 184923c42c1SMike Galbraith return; 185923c42c1SMike Galbraith 186ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 187ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 188ce6f4fabSArnaldo Carvalho de Melo 189ce6f4fabSArnaldo Carvalho de Melo if (pthread_mutex_trylock(¬es->lock)) 190923c42c1SMike Galbraith return; 191923c42c1SMike Galbraith 192d04b35f8SArnaldo Carvalho de Melo if (notes->src == NULL && symbol__alloc_hist(sym) < 0) { 193ab81f3fdSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 194ab81f3fdSArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 195ab81f3fdSArnaldo Carvalho de Melo sym->name); 196ab81f3fdSArnaldo Carvalho de Melo sleep(1); 197ab81f3fdSArnaldo Carvalho de Melo return; 198ab81f3fdSArnaldo Carvalho de Melo } 199ab81f3fdSArnaldo Carvalho de Melo 200ab81f3fdSArnaldo Carvalho de Melo ip = he->ms.map->map_ip(he->ms.map, ip); 20131d68e7bSArnaldo Carvalho de Melo err = symbol__inc_addr_samples(sym, he->ms.map, counter, ip); 202923c42c1SMike Galbraith 203ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 20431d68e7bSArnaldo Carvalho de Melo 20531d68e7bSArnaldo Carvalho de Melo if (err == -ERANGE && !he->ms.map->erange_warned) 20631d68e7bSArnaldo Carvalho de Melo ui__warn_map_erange(he->ms.map, sym, ip); 207923c42c1SMike Galbraith } 208923c42c1SMike Galbraith 2091758af10SArnaldo Carvalho de Melo static void perf_top__show_details(struct perf_top *top) 210923c42c1SMike Galbraith { 2111758af10SArnaldo Carvalho de Melo struct hist_entry *he = top->sym_filter_entry; 212ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 213923c42c1SMike Galbraith struct symbol *symbol; 21436532461SArnaldo Carvalho de Melo int more; 215923c42c1SMike Galbraith 216ab81f3fdSArnaldo Carvalho de Melo if (!he) 217923c42c1SMike Galbraith return; 218923c42c1SMike Galbraith 219ab81f3fdSArnaldo Carvalho de Melo symbol = he->ms.sym; 220ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(symbol); 221ce6f4fabSArnaldo Carvalho de Melo 222ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 223ce6f4fabSArnaldo Carvalho de Melo 224ce6f4fabSArnaldo Carvalho de Melo if (notes->src == NULL) 225ce6f4fabSArnaldo Carvalho de Melo goto out_unlock; 226923c42c1SMike Galbraith 2277289f83cSArnaldo Carvalho de Melo printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); 2281758af10SArnaldo Carvalho de Melo printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); 229923c42c1SMike Galbraith 230db8fd07aSNamhyung Kim more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, 2311758af10SArnaldo Carvalho de Melo 0, top->sym_pcnt_filter, top->print_entries, 4); 2321758af10SArnaldo Carvalho de Melo if (top->zero) 2331758af10SArnaldo Carvalho de Melo symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); 23436532461SArnaldo Carvalho de Melo else 2351758af10SArnaldo Carvalho de Melo symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); 23636532461SArnaldo Carvalho de Melo if (more != 0) 237923c42c1SMike Galbraith printf("%d lines not displayed, maybe increase display entries [e]\n", more); 238ce6f4fabSArnaldo Carvalho de Melo out_unlock: 239ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 240923c42c1SMike Galbraith } 24186470930SIngo Molnar 242743eb868SArnaldo Carvalho de Melo static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel, 243ab81f3fdSArnaldo Carvalho de Melo struct addr_location *al, 244743eb868SArnaldo Carvalho de Melo struct perf_sample *sample) 24586470930SIngo Molnar { 246ab81f3fdSArnaldo Carvalho de Melo struct hist_entry *he; 247ab81f3fdSArnaldo Carvalho de Melo 24827a0dcb7SNamhyung Kim pthread_mutex_lock(&evsel->hists.lock); 24905484298SAndi Kleen he = __hists__add_entry(&evsel->hists, al, NULL, sample->period, 25005484298SAndi Kleen sample->weight); 25127a0dcb7SNamhyung Kim pthread_mutex_unlock(&evsel->hists.lock); 25227a0dcb7SNamhyung Kim 253ab81f3fdSArnaldo Carvalho de Melo if (he == NULL) 254ab81f3fdSArnaldo Carvalho de Melo return NULL; 255ab81f3fdSArnaldo Carvalho de Melo 256ab81f3fdSArnaldo Carvalho de Melo hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); 257ab81f3fdSArnaldo Carvalho de Melo return he; 25886470930SIngo Molnar } 25986470930SIngo Molnar 2601758af10SArnaldo Carvalho de Melo static void perf_top__print_sym_table(struct perf_top *top) 26186470930SIngo Molnar { 2628c3e10ebSArnaldo Carvalho de Melo char bf[160]; 2638c3e10ebSArnaldo Carvalho de Melo int printed = 0; 2641758af10SArnaldo Carvalho de Melo const int win_width = top->winsize.ws_col - 1; 26586470930SIngo Molnar 26686470930SIngo Molnar puts(CONSOLE_CLEAR); 26786470930SIngo Molnar 2681758af10SArnaldo Carvalho de Melo perf_top__header_snprintf(top, bf, sizeof(bf)); 2698c3e10ebSArnaldo Carvalho de Melo printf("%s\n", bf); 27086470930SIngo Molnar 2711758af10SArnaldo Carvalho de Melo perf_top__reset_sample_counters(top); 27286470930SIngo Molnar 2731a105f74SArnaldo Carvalho de Melo printf("%-*.*s\n", win_width, win_width, graph_dotted_line); 27486470930SIngo Molnar 2751758af10SArnaldo Carvalho de Melo if (top->sym_evsel->hists.stats.nr_lost_warned != 2761758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) { 2771758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_lost_warned = 2781758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]; 2797b27509fSArnaldo Carvalho de Melo color_fprintf(stdout, PERF_COLOR_RED, 2807b27509fSArnaldo Carvalho de Melo "WARNING: LOST %d chunks, Check IO/CPU overload", 2811758af10SArnaldo Carvalho de Melo top->sym_evsel->hists.stats.nr_lost_warned); 282ab81f3fdSArnaldo Carvalho de Melo ++printed; 28393fc64f1SArnaldo Carvalho de Melo } 28493fc64f1SArnaldo Carvalho de Melo 2851758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 2861758af10SArnaldo Carvalho de Melo perf_top__show_details(top); 287923c42c1SMike Galbraith return; 288923c42c1SMike Galbraith } 289923c42c1SMike Galbraith 2903a5714f8SNamhyung Kim hists__collapse_resort(&top->sym_evsel->hists); 2913a5714f8SNamhyung Kim hists__output_resort(&top->sym_evsel->hists); 2923a5714f8SNamhyung Kim hists__decay_entries(&top->sym_evsel->hists, 2931758af10SArnaldo Carvalho de Melo top->hide_user_symbols, 2941758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols); 2951758af10SArnaldo Carvalho de Melo hists__output_recalc_col_len(&top->sym_evsel->hists, 296933cbb1cSNamhyung Kim top->print_entries - printed); 2971a105f74SArnaldo Carvalho de Melo putchar('\n'); 29841724e4cSJiri Olsa hists__fprintf(&top->sym_evsel->hists, false, 299fa5df943SNamhyung Kim top->print_entries - printed, win_width, 300fa5df943SNamhyung Kim top->min_percent, stdout); 30186470930SIngo Molnar } 30286470930SIngo Molnar 303923c42c1SMike Galbraith static void prompt_integer(int *target, const char *msg) 304923c42c1SMike Galbraith { 305923c42c1SMike Galbraith char *buf = malloc(0), *p; 306923c42c1SMike Galbraith size_t dummy = 0; 307923c42c1SMike Galbraith int tmp; 308923c42c1SMike Galbraith 309923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 310923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 311923c42c1SMike Galbraith return; 312923c42c1SMike Galbraith 313923c42c1SMike Galbraith p = strchr(buf, '\n'); 314923c42c1SMike Galbraith if (p) 315923c42c1SMike Galbraith *p = 0; 316923c42c1SMike Galbraith 317923c42c1SMike Galbraith p = buf; 318923c42c1SMike Galbraith while(*p) { 319923c42c1SMike Galbraith if (!isdigit(*p)) 320923c42c1SMike Galbraith goto out_free; 321923c42c1SMike Galbraith p++; 322923c42c1SMike Galbraith } 323923c42c1SMike Galbraith tmp = strtoul(buf, NULL, 10); 324923c42c1SMike Galbraith *target = tmp; 325923c42c1SMike Galbraith out_free: 326923c42c1SMike Galbraith free(buf); 327923c42c1SMike Galbraith } 328923c42c1SMike Galbraith 329923c42c1SMike Galbraith static void prompt_percent(int *target, const char *msg) 330923c42c1SMike Galbraith { 331923c42c1SMike Galbraith int tmp = 0; 332923c42c1SMike Galbraith 333923c42c1SMike Galbraith prompt_integer(&tmp, msg); 334923c42c1SMike Galbraith if (tmp >= 0 && tmp <= 100) 335923c42c1SMike Galbraith *target = tmp; 336923c42c1SMike Galbraith } 337923c42c1SMike Galbraith 3381758af10SArnaldo Carvalho de Melo static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) 339923c42c1SMike Galbraith { 340923c42c1SMike Galbraith char *buf = malloc(0), *p; 3411758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; 342ab81f3fdSArnaldo Carvalho de Melo struct rb_node *next; 343923c42c1SMike Galbraith size_t dummy = 0; 344923c42c1SMike Galbraith 345923c42c1SMike Galbraith /* zero counters of active symbol */ 346923c42c1SMike Galbraith if (syme) { 347923c42c1SMike Galbraith __zero_source_counters(syme); 3481758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 349923c42c1SMike Galbraith } 350923c42c1SMike Galbraith 351923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 352923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 353923c42c1SMike Galbraith goto out_free; 354923c42c1SMike Galbraith 355923c42c1SMike Galbraith p = strchr(buf, '\n'); 356923c42c1SMike Galbraith if (p) 357923c42c1SMike Galbraith *p = 0; 358923c42c1SMike Galbraith 3591758af10SArnaldo Carvalho de Melo next = rb_first(&top->sym_evsel->hists.entries); 360ab81f3fdSArnaldo Carvalho de Melo while (next) { 361ab81f3fdSArnaldo Carvalho de Melo n = rb_entry(next, struct hist_entry, rb_node); 362ab81f3fdSArnaldo Carvalho de Melo if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { 363ab81f3fdSArnaldo Carvalho de Melo found = n; 364923c42c1SMike Galbraith break; 365923c42c1SMike Galbraith } 366ab81f3fdSArnaldo Carvalho de Melo next = rb_next(&n->rb_node); 367923c42c1SMike Galbraith } 368923c42c1SMike Galbraith 369923c42c1SMike Galbraith if (!found) { 37066aeb6d5SKirill Smelkov fprintf(stderr, "Sorry, %s is not active.\n", buf); 371923c42c1SMike Galbraith sleep(1); 372923c42c1SMike Galbraith } else 3731758af10SArnaldo Carvalho de Melo perf_top__parse_source(top, found); 374923c42c1SMike Galbraith 375923c42c1SMike Galbraith out_free: 376923c42c1SMike Galbraith free(buf); 377923c42c1SMike Galbraith } 378923c42c1SMike Galbraith 3791758af10SArnaldo Carvalho de Melo static void perf_top__print_mapped_keys(struct perf_top *top) 380923c42c1SMike Galbraith { 381091bd2e9SMike Galbraith char *name = NULL; 382091bd2e9SMike Galbraith 3831758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 3841758af10SArnaldo Carvalho de Melo struct symbol *sym = top->sym_filter_entry->ms.sym; 385091bd2e9SMike Galbraith name = sym->name; 386091bd2e9SMike Galbraith } 387091bd2e9SMike Galbraith 388091bd2e9SMike Galbraith fprintf(stdout, "\nMapped keys:\n"); 3891758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); 3901758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); 391091bd2e9SMike Galbraith 3921758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) 3937289f83cSArnaldo Carvalho de Melo fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); 394091bd2e9SMike Galbraith 3951758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); 396091bd2e9SMike Galbraith 3971758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); 398091bd2e9SMike Galbraith fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); 399091bd2e9SMike Galbraith fprintf(stdout, "\t[S] stop annotation.\n"); 400091bd2e9SMike Galbraith 4018ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4028ffcda17SArnaldo Carvalho de Melo "\t[K] hide kernel_symbols symbols. \t(%s)\n", 4031758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols ? "yes" : "no"); 4048ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4058ffcda17SArnaldo Carvalho de Melo "\t[U] hide user symbols. \t(%s)\n", 4061758af10SArnaldo Carvalho de Melo top->hide_user_symbols ? "yes" : "no"); 4071758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); 408091bd2e9SMike Galbraith fprintf(stdout, "\t[qQ] quit.\n"); 409091bd2e9SMike Galbraith } 410091bd2e9SMike Galbraith 4111758af10SArnaldo Carvalho de Melo static int perf_top__key_mapped(struct perf_top *top, int c) 412091bd2e9SMike Galbraith { 413091bd2e9SMike Galbraith switch (c) { 414091bd2e9SMike Galbraith case 'd': 415091bd2e9SMike Galbraith case 'e': 416091bd2e9SMike Galbraith case 'f': 417091bd2e9SMike Galbraith case 'z': 418091bd2e9SMike Galbraith case 'q': 419091bd2e9SMike Galbraith case 'Q': 4208ffcda17SArnaldo Carvalho de Melo case 'K': 4218ffcda17SArnaldo Carvalho de Melo case 'U': 4226cff0e8dSKirill Smelkov case 'F': 4236cff0e8dSKirill Smelkov case 's': 4246cff0e8dSKirill Smelkov case 'S': 425091bd2e9SMike Galbraith return 1; 426091bd2e9SMike Galbraith case 'E': 4271758af10SArnaldo Carvalho de Melo return top->evlist->nr_entries > 1 ? 1 : 0; 42883a0944fSIngo Molnar default: 42983a0944fSIngo Molnar break; 430091bd2e9SMike Galbraith } 431091bd2e9SMike Galbraith 432091bd2e9SMike Galbraith return 0; 433923c42c1SMike Galbraith } 434923c42c1SMike Galbraith 43511859e82SArnaldo Carvalho de Melo static bool perf_top__handle_keypress(struct perf_top *top, int c) 436923c42c1SMike Galbraith { 43711859e82SArnaldo Carvalho de Melo bool ret = true; 43811859e82SArnaldo Carvalho de Melo 4391758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) { 440091bd2e9SMike Galbraith struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 441091bd2e9SMike Galbraith struct termios tc, save; 442091bd2e9SMike Galbraith 4431758af10SArnaldo Carvalho de Melo perf_top__print_mapped_keys(top); 444091bd2e9SMike Galbraith fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); 445091bd2e9SMike Galbraith fflush(stdout); 446091bd2e9SMike Galbraith 447091bd2e9SMike Galbraith tcgetattr(0, &save); 448091bd2e9SMike Galbraith tc = save; 449091bd2e9SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 450091bd2e9SMike Galbraith tc.c_cc[VMIN] = 0; 451091bd2e9SMike Galbraith tc.c_cc[VTIME] = 0; 452091bd2e9SMike Galbraith tcsetattr(0, TCSANOW, &tc); 453091bd2e9SMike Galbraith 454091bd2e9SMike Galbraith poll(&stdin_poll, 1, -1); 455091bd2e9SMike Galbraith c = getc(stdin); 456091bd2e9SMike Galbraith 457091bd2e9SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 4581758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) 45911859e82SArnaldo Carvalho de Melo return ret; 460091bd2e9SMike Galbraith } 461091bd2e9SMike Galbraith 462923c42c1SMike Galbraith switch (c) { 463923c42c1SMike Galbraith case 'd': 4641758af10SArnaldo Carvalho de Melo prompt_integer(&top->delay_secs, "Enter display delay"); 4651758af10SArnaldo Carvalho de Melo if (top->delay_secs < 1) 4661758af10SArnaldo Carvalho de Melo top->delay_secs = 1; 467923c42c1SMike Galbraith break; 468923c42c1SMike Galbraith case 'e': 4691758af10SArnaldo Carvalho de Melo prompt_integer(&top->print_entries, "Enter display entries (lines)"); 4701758af10SArnaldo Carvalho de Melo if (top->print_entries == 0) { 4711758af10SArnaldo Carvalho de Melo struct sigaction act = { 4721758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 4731758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 4741758af10SArnaldo Carvalho de Melo }; 4751758af10SArnaldo Carvalho de Melo perf_top__sig_winch(SIGWINCH, NULL, top); 4761758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 477509605dbSStephane Eranian } else { 4783b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, SIG_DFL); 479509605dbSStephane Eranian } 480923c42c1SMike Galbraith break; 481923c42c1SMike Galbraith case 'E': 4821758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) { 483ce2d17caSAkihiro Nagai /* Select 0 as the default event: */ 484ce2d17caSAkihiro Nagai int counter = 0; 485ce2d17caSAkihiro Nagai 486923c42c1SMike Galbraith fprintf(stderr, "\nAvailable events:"); 48769aad6f1SArnaldo Carvalho de Melo 4881758af10SArnaldo Carvalho de Melo list_for_each_entry(top->sym_evsel, &top->evlist->entries, node) 4897289f83cSArnaldo Carvalho de Melo fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); 490923c42c1SMike Galbraith 491ec52d976SArnaldo Carvalho de Melo prompt_integer(&counter, "Enter details event counter"); 492923c42c1SMike Galbraith 4931758af10SArnaldo Carvalho de Melo if (counter >= top->evlist->nr_entries) { 4940c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 4957289f83cSArnaldo Carvalho de Melo fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); 496923c42c1SMike Galbraith sleep(1); 49769aad6f1SArnaldo Carvalho de Melo break; 498923c42c1SMike Galbraith } 4991758af10SArnaldo Carvalho de Melo list_for_each_entry(top->sym_evsel, &top->evlist->entries, node) 5001758af10SArnaldo Carvalho de Melo if (top->sym_evsel->idx == counter) 50169aad6f1SArnaldo Carvalho de Melo break; 502ec52d976SArnaldo Carvalho de Melo } else 5030c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 504923c42c1SMike Galbraith break; 505923c42c1SMike Galbraith case 'f': 5061758af10SArnaldo Carvalho de Melo prompt_integer(&top->count_filter, "Enter display event count filter"); 507923c42c1SMike Galbraith break; 508923c42c1SMike Galbraith case 'F': 5091758af10SArnaldo Carvalho de Melo prompt_percent(&top->sym_pcnt_filter, 5101758af10SArnaldo Carvalho de Melo "Enter details display event filter (percent)"); 511923c42c1SMike Galbraith break; 5128ffcda17SArnaldo Carvalho de Melo case 'K': 5131758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols = !top->hide_kernel_symbols; 5148ffcda17SArnaldo Carvalho de Melo break; 515923c42c1SMike Galbraith case 'q': 516923c42c1SMike Galbraith case 'Q': 517923c42c1SMike Galbraith printf("exiting.\n"); 5181758af10SArnaldo Carvalho de Melo if (top->dump_symtab) 5191758af10SArnaldo Carvalho de Melo perf_session__fprintf_dsos(top->session, stderr); 52011859e82SArnaldo Carvalho de Melo ret = false; 52111859e82SArnaldo Carvalho de Melo break; 522923c42c1SMike Galbraith case 's': 5231758af10SArnaldo Carvalho de Melo perf_top__prompt_symbol(top, "Enter details symbol"); 524923c42c1SMike Galbraith break; 525923c42c1SMike Galbraith case 'S': 5261758af10SArnaldo Carvalho de Melo if (!top->sym_filter_entry) 527923c42c1SMike Galbraith break; 528923c42c1SMike Galbraith else { 5291758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry; 530923c42c1SMike Galbraith 5311758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 532923c42c1SMike Galbraith __zero_source_counters(syme); 533923c42c1SMike Galbraith } 534923c42c1SMike Galbraith break; 5358ffcda17SArnaldo Carvalho de Melo case 'U': 5361758af10SArnaldo Carvalho de Melo top->hide_user_symbols = !top->hide_user_symbols; 5378ffcda17SArnaldo Carvalho de Melo break; 538923c42c1SMike Galbraith case 'z': 5391758af10SArnaldo Carvalho de Melo top->zero = !top->zero; 540923c42c1SMike Galbraith break; 54183a0944fSIngo Molnar default: 54283a0944fSIngo Molnar break; 543923c42c1SMike Galbraith } 54411859e82SArnaldo Carvalho de Melo 54511859e82SArnaldo Carvalho de Melo return ret; 546923c42c1SMike Galbraith } 547923c42c1SMike Galbraith 548ab81f3fdSArnaldo Carvalho de Melo static void perf_top__sort_new_samples(void *arg) 549ab81f3fdSArnaldo Carvalho de Melo { 550ab81f3fdSArnaldo Carvalho de Melo struct perf_top *t = arg; 551ab81f3fdSArnaldo Carvalho de Melo perf_top__reset_sample_counters(t); 552ab81f3fdSArnaldo Carvalho de Melo 553ab81f3fdSArnaldo Carvalho de Melo if (t->evlist->selected != NULL) 554ab81f3fdSArnaldo Carvalho de Melo t->sym_evsel = t->evlist->selected; 555ab81f3fdSArnaldo Carvalho de Melo 5563a5714f8SNamhyung Kim hists__collapse_resort(&t->sym_evsel->hists); 5573a5714f8SNamhyung Kim hists__output_resort(&t->sym_evsel->hists); 5583a5714f8SNamhyung Kim hists__decay_entries(&t->sym_evsel->hists, 5591758af10SArnaldo Carvalho de Melo t->hide_user_symbols, 5601758af10SArnaldo Carvalho de Melo t->hide_kernel_symbols); 561ab81f3fdSArnaldo Carvalho de Melo } 562ab81f3fdSArnaldo Carvalho de Melo 5631758af10SArnaldo Carvalho de Melo static void *display_thread_tui(void *arg) 564c0443df1SArnaldo Carvalho de Melo { 5650d37aa34SArnaldo Carvalho de Melo struct perf_evsel *pos; 5661758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 567ab81f3fdSArnaldo Carvalho de Melo const char *help = "For a higher level overview, try: perf top --sort comm,dso"; 5689783adf7SNamhyung Kim struct hist_browser_timer hbt = { 5699783adf7SNamhyung Kim .timer = perf_top__sort_new_samples, 5709783adf7SNamhyung Kim .arg = top, 5719783adf7SNamhyung Kim .refresh = top->delay_secs, 5729783adf7SNamhyung Kim }; 573ab81f3fdSArnaldo Carvalho de Melo 5741758af10SArnaldo Carvalho de Melo perf_top__sort_new_samples(top); 5750d37aa34SArnaldo Carvalho de Melo 5760d37aa34SArnaldo Carvalho de Melo /* 5770d37aa34SArnaldo Carvalho de Melo * Initialize the uid_filter_str, in the future the TUI will allow 5780d37aa34SArnaldo Carvalho de Melo * Zooming in/out UIDs. For now juse use whatever the user passed 5790d37aa34SArnaldo Carvalho de Melo * via --uid. 5800d37aa34SArnaldo Carvalho de Melo */ 5810d37aa34SArnaldo Carvalho de Melo list_for_each_entry(pos, &top->evlist->entries, node) 5822376c67aSArnaldo Carvalho de Melo pos->hists.uid_filter_str = top->record_opts.target.uid_str; 5830d37aa34SArnaldo Carvalho de Melo 584fa5df943SNamhyung Kim perf_evlist__tui_browse_hists(top->evlist, help, &hbt, top->min_percent, 58568d80758SNamhyung Kim &top->session->header.env); 586ab81f3fdSArnaldo Carvalho de Melo 58711859e82SArnaldo Carvalho de Melo done = 1; 588c0443df1SArnaldo Carvalho de Melo return NULL; 589c0443df1SArnaldo Carvalho de Melo } 590c0443df1SArnaldo Carvalho de Melo 5911758af10SArnaldo Carvalho de Melo static void *display_thread(void *arg) 59286470930SIngo Molnar { 59386470930SIngo Molnar struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 594923c42c1SMike Galbraith struct termios tc, save; 5951758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 596923c42c1SMike Galbraith int delay_msecs, c; 59786470930SIngo Molnar 598923c42c1SMike Galbraith tcgetattr(0, &save); 599923c42c1SMike Galbraith tc = save; 600923c42c1SMike Galbraith tc.c_lflag &= ~(ICANON | ECHO); 601923c42c1SMike Galbraith tc.c_cc[VMIN] = 0; 602923c42c1SMike Galbraith tc.c_cc[VTIME] = 0; 603091bd2e9SMike Galbraith 6043af6e338SArnaldo Carvalho de Melo pthread__unblock_sigwinch(); 605923c42c1SMike Galbraith repeat: 6061758af10SArnaldo Carvalho de Melo delay_msecs = top->delay_secs * 1000; 607923c42c1SMike Galbraith tcsetattr(0, TCSANOW, &tc); 608923c42c1SMike Galbraith /* trash return*/ 609923c42c1SMike Galbraith getc(stdin); 61086470930SIngo Molnar 61111859e82SArnaldo Carvalho de Melo while (!done) { 6121758af10SArnaldo Carvalho de Melo perf_top__print_sym_table(top); 6133af6e338SArnaldo Carvalho de Melo /* 6143af6e338SArnaldo Carvalho de Melo * Either timeout expired or we got an EINTR due to SIGWINCH, 6153af6e338SArnaldo Carvalho de Melo * refresh screen in both cases. 6163af6e338SArnaldo Carvalho de Melo */ 6173af6e338SArnaldo Carvalho de Melo switch (poll(&stdin_poll, 1, delay_msecs)) { 6183af6e338SArnaldo Carvalho de Melo case 0: 6193af6e338SArnaldo Carvalho de Melo continue; 6203af6e338SArnaldo Carvalho de Melo case -1: 6213af6e338SArnaldo Carvalho de Melo if (errno == EINTR) 6223af6e338SArnaldo Carvalho de Melo continue; 6233af6e338SArnaldo Carvalho de Melo /* Fall trhu */ 6243af6e338SArnaldo Carvalho de Melo default: 625923c42c1SMike Galbraith c = getc(stdin); 626923c42c1SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 627923c42c1SMike Galbraith 62811859e82SArnaldo Carvalho de Melo if (perf_top__handle_keypress(top, c)) 629923c42c1SMike Galbraith goto repeat; 63011859e82SArnaldo Carvalho de Melo done = 1; 63111859e82SArnaldo Carvalho de Melo } 63211859e82SArnaldo Carvalho de Melo } 63386470930SIngo Molnar 63486470930SIngo Molnar return NULL; 63586470930SIngo Molnar } 63686470930SIngo Molnar 6372ab52083SAnton Blanchard /* Tag samples to be skipped. */ 638f37a291cSIngo Molnar static const char *skip_symbols[] = { 6394bea8b5cSArnaldo Carvalho de Melo "intel_idle", 6402ab52083SAnton Blanchard "default_idle", 641b0e8572fSArnaldo Carvalho de Melo "native_safe_halt", 6422ab52083SAnton Blanchard "cpu_idle", 6432ab52083SAnton Blanchard "enter_idle", 6442ab52083SAnton Blanchard "exit_idle", 6452ab52083SAnton Blanchard "mwait_idle", 64659b90056SArnaldo Carvalho de Melo "mwait_idle_with_hints", 6478357275bSArnaldo Carvalho de Melo "poll_idle", 6483a3393efSAnton Blanchard "ppc64_runlatch_off", 6493a3393efSAnton Blanchard "pseries_dedicated_idle_sleep", 6502ab52083SAnton Blanchard NULL 6512ab52083SAnton Blanchard }; 6522ab52083SAnton Blanchard 6531d037ca1SIrina Tirdea static int symbol_filter(struct map *map __maybe_unused, struct symbol *sym) 65486470930SIngo Molnar { 65586470930SIngo Molnar const char *name = sym->name; 6562ab52083SAnton Blanchard int i; 65786470930SIngo Molnar 6583a3393efSAnton Blanchard /* 6593a3393efSAnton Blanchard * ppc64 uses function descriptors and appends a '.' to the 6603a3393efSAnton Blanchard * start of every instruction address. Remove it. 6613a3393efSAnton Blanchard */ 6623a3393efSAnton Blanchard if (name[0] == '.') 6633a3393efSAnton Blanchard name++; 6643a3393efSAnton Blanchard 66586470930SIngo Molnar if (!strcmp(name, "_text") || 66686470930SIngo Molnar !strcmp(name, "_etext") || 66786470930SIngo Molnar !strcmp(name, "_sinittext") || 66886470930SIngo Molnar !strncmp("init_module", name, 11) || 66986470930SIngo Molnar !strncmp("cleanup_module", name, 14) || 67086470930SIngo Molnar strstr(name, "_text_start") || 67186470930SIngo Molnar strstr(name, "_text_end")) 67286470930SIngo Molnar return 1; 67386470930SIngo Molnar 6742ab52083SAnton Blanchard for (i = 0; skip_symbols[i]; i++) { 6752ab52083SAnton Blanchard if (!strcmp(skip_symbols[i], name)) { 676171b3be9SArnaldo Carvalho de Melo sym->ignore = true; 6772ab52083SAnton Blanchard break; 6782ab52083SAnton Blanchard } 6792ab52083SAnton Blanchard } 68086470930SIngo Molnar 68186470930SIngo Molnar return 0; 68286470930SIngo Molnar } 68386470930SIngo Molnar 6841758af10SArnaldo Carvalho de Melo static void perf_event__process_sample(struct perf_tool *tool, 6851758af10SArnaldo Carvalho de Melo const union perf_event *event, 6867b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel, 6878d50e5b4SArnaldo Carvalho de Melo struct perf_sample *sample, 688743eb868SArnaldo Carvalho de Melo struct machine *machine) 68986470930SIngo Molnar { 6901758af10SArnaldo Carvalho de Melo struct perf_top *top = container_of(tool, struct perf_top, tool); 69119d4ac3cSArnaldo Carvalho de Melo struct symbol *parent = NULL; 6928115d60cSArnaldo Carvalho de Melo u64 ip = event->ip.ip; 6931ed091c4SArnaldo Carvalho de Melo struct addr_location al; 69419d4ac3cSArnaldo Carvalho de Melo int err; 6955b2bb75aSArnaldo Carvalho de Melo 69623346f21SArnaldo Carvalho de Melo if (!machine && perf_guest) { 6976b118e92SDavid Ahern static struct intlist *seen; 6986b118e92SDavid Ahern 6996b118e92SDavid Ahern if (!seen) 700ffe0fb76SArnaldo Carvalho de Melo seen = intlist__new(NULL); 7016b118e92SDavid Ahern 7026b118e92SDavid Ahern if (!intlist__has_entry(seen, event->ip.pid)) { 703a1645ce1SZhang, Yanmin pr_err("Can't find guest [%d]'s kernel information\n", 7048115d60cSArnaldo Carvalho de Melo event->ip.pid); 7056b118e92SDavid Ahern intlist__add(seen, event->ip.pid); 7066b118e92SDavid Ahern } 707a1645ce1SZhang, Yanmin return; 708a1645ce1SZhang, Yanmin } 709a1645ce1SZhang, Yanmin 7100c095715SJoerg Roedel if (!machine) { 71111859e82SArnaldo Carvalho de Melo pr_err("%u unprocessable samples recorded.\r", 71228a6b6aaSArnaldo Carvalho de Melo top->session->stats.nr_unprocessable_samples++); 7130c095715SJoerg Roedel return; 7140c095715SJoerg Roedel } 7150c095715SJoerg Roedel 7168115d60cSArnaldo Carvalho de Melo if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) 7171758af10SArnaldo Carvalho de Melo top->exact_samples++; 7181676b8a0SPeter Zijlstra 719e44baa3eSAdrian Hunter if (perf_event__preprocess_sample(event, machine, &al, sample) < 0 || 72072b8fa17SArnaldo Carvalho de Melo al.filtered) 7211ed091c4SArnaldo Carvalho de Melo return; 72286470930SIngo Molnar 7231758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && 7245f6f5580SArnaldo Carvalho de Melo symbol_conf.kptr_restrict && 7255f6f5580SArnaldo Carvalho de Melo al.cpumode == PERF_RECORD_MISC_KERNEL) { 7265f6f5580SArnaldo Carvalho de Melo ui__warning( 7275f6f5580SArnaldo Carvalho de Melo "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" 7285f6f5580SArnaldo Carvalho de Melo "Check /proc/sys/kernel/kptr_restrict.\n\n" 7295f6f5580SArnaldo Carvalho de Melo "Kernel%s samples will not be resolved.\n", 7305f6f5580SArnaldo Carvalho de Melo !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? 7315f6f5580SArnaldo Carvalho de Melo " modules" : ""); 7325f6f5580SArnaldo Carvalho de Melo if (use_browser <= 0) 7335f6f5580SArnaldo Carvalho de Melo sleep(5); 7341758af10SArnaldo Carvalho de Melo top->kptr_restrict_warned = true; 7355f6f5580SArnaldo Carvalho de Melo } 7365f6f5580SArnaldo Carvalho de Melo 73772b8fa17SArnaldo Carvalho de Melo if (al.sym == NULL) { 738e4a338d0SArnaldo Carvalho de Melo const char *msg = "Kernel samples will not be resolved.\n"; 73972b8fa17SArnaldo Carvalho de Melo /* 74072b8fa17SArnaldo Carvalho de Melo * As we do lazy loading of symtabs we only will know if the 74172b8fa17SArnaldo Carvalho de Melo * specified vmlinux file is invalid when we actually have a 74272b8fa17SArnaldo Carvalho de Melo * hit in kernel space and then try to load it. So if we get 74372b8fa17SArnaldo Carvalho de Melo * here and there are _no_ symbols in the DSO backing the 74472b8fa17SArnaldo Carvalho de Melo * kernel map, bail out. 74572b8fa17SArnaldo Carvalho de Melo * 74672b8fa17SArnaldo Carvalho de Melo * We may never get here, for instance, if we use -K/ 74772b8fa17SArnaldo Carvalho de Melo * --hide-kernel-symbols, even if the user specifies an 74872b8fa17SArnaldo Carvalho de Melo * invalid --vmlinux ;-) 74972b8fa17SArnaldo Carvalho de Melo */ 7501758af10SArnaldo Carvalho de Melo if (!top->kptr_restrict_warned && !top->vmlinux_warned && 751e4a338d0SArnaldo Carvalho de Melo al.map == machine->vmlinux_maps[MAP__FUNCTION] && 75272b8fa17SArnaldo Carvalho de Melo RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { 753e4a338d0SArnaldo Carvalho de Melo if (symbol_conf.vmlinux_name) { 754e4a338d0SArnaldo Carvalho de Melo ui__warning("The %s file can't be used.\n%s", 755e4a338d0SArnaldo Carvalho de Melo symbol_conf.vmlinux_name, msg); 756e4a338d0SArnaldo Carvalho de Melo } else { 757e4a338d0SArnaldo Carvalho de Melo ui__warning("A vmlinux file was not found.\n%s", 758e4a338d0SArnaldo Carvalho de Melo msg); 759e4a338d0SArnaldo Carvalho de Melo } 760e4a338d0SArnaldo Carvalho de Melo 761e4a338d0SArnaldo Carvalho de Melo if (use_browser <= 0) 762e4a338d0SArnaldo Carvalho de Melo sleep(5); 7631758af10SArnaldo Carvalho de Melo top->vmlinux_warned = true; 76472b8fa17SArnaldo Carvalho de Melo } 76572b8fa17SArnaldo Carvalho de Melo } 76672b8fa17SArnaldo Carvalho de Melo 767ab81f3fdSArnaldo Carvalho de Melo if (al.sym == NULL || !al.sym->ignore) { 768ab81f3fdSArnaldo Carvalho de Melo struct hist_entry *he; 76970db7533SArnaldo Carvalho de Melo 77019d4ac3cSArnaldo Carvalho de Melo if ((sort__has_parent || symbol_conf.use_callchain) && 77119d4ac3cSArnaldo Carvalho de Melo sample->callchain) { 77271ad0f5eSJiri Olsa err = machine__resolve_callchain(machine, evsel, 77371ad0f5eSJiri Olsa al.thread, sample, 774b21484f1SGreg Price &parent, &al); 77519d4ac3cSArnaldo Carvalho de Melo if (err) 77619d4ac3cSArnaldo Carvalho de Melo return; 77719d4ac3cSArnaldo Carvalho de Melo } 77819d4ac3cSArnaldo Carvalho de Melo 779743eb868SArnaldo Carvalho de Melo he = perf_evsel__add_hist_entry(evsel, &al, sample); 780ab81f3fdSArnaldo Carvalho de Melo if (he == NULL) { 781ab81f3fdSArnaldo Carvalho de Melo pr_err("Problem incrementing symbol period, skipping event\n"); 782ab81f3fdSArnaldo Carvalho de Melo return; 7835807806aSArnaldo Carvalho de Melo } 784ab81f3fdSArnaldo Carvalho de Melo 78519d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) { 78647260645SNamhyung Kim err = callchain_append(he->callchain, &callchain_cursor, 78719d4ac3cSArnaldo Carvalho de Melo sample->period); 78819d4ac3cSArnaldo Carvalho de Melo if (err) 78919d4ac3cSArnaldo Carvalho de Melo return; 79019d4ac3cSArnaldo Carvalho de Melo } 79119d4ac3cSArnaldo Carvalho de Melo 7928f0f684bSNamhyung Kim if (sort__has_sym) 7931758af10SArnaldo Carvalho de Melo perf_top__record_precise_ip(top, he, evsel->idx, ip); 7945807806aSArnaldo Carvalho de Melo } 795ab81f3fdSArnaldo Carvalho de Melo 796ab81f3fdSArnaldo Carvalho de Melo return; 79786470930SIngo Molnar } 79886470930SIngo Molnar 7991758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read_idx(struct perf_top *top, int idx) 80086470930SIngo Molnar { 8018d50e5b4SArnaldo Carvalho de Melo struct perf_sample sample; 8027b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel; 8031758af10SArnaldo Carvalho de Melo struct perf_session *session = top->session; 8048115d60cSArnaldo Carvalho de Melo union perf_event *event; 805743eb868SArnaldo Carvalho de Melo struct machine *machine; 806743eb868SArnaldo Carvalho de Melo u8 origin; 8075538becaSFrederic Weisbecker int ret; 80886470930SIngo Molnar 8091758af10SArnaldo Carvalho de Melo while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { 8100807d2d8SArnaldo Carvalho de Melo ret = perf_evlist__parse_sample(top->evlist, event, &sample); 8115538becaSFrederic Weisbecker if (ret) { 8125538becaSFrederic Weisbecker pr_err("Can't parse sample, err = %d\n", ret); 8135538becaSFrederic Weisbecker continue; 8145538becaSFrederic Weisbecker } 81504391debSArnaldo Carvalho de Melo 8161758af10SArnaldo Carvalho de Melo evsel = perf_evlist__id2evsel(session->evlist, sample.id); 8177b27509fSArnaldo Carvalho de Melo assert(evsel != NULL); 8187b27509fSArnaldo Carvalho de Melo 819743eb868SArnaldo Carvalho de Melo origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; 820743eb868SArnaldo Carvalho de Melo 8215b2bb75aSArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) 8221758af10SArnaldo Carvalho de Melo ++top->samples; 823743eb868SArnaldo Carvalho de Melo 824743eb868SArnaldo Carvalho de Melo switch (origin) { 825743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_USER: 8261758af10SArnaldo Carvalho de Melo ++top->us_samples; 8271758af10SArnaldo Carvalho de Melo if (top->hide_user_symbols) 828743eb868SArnaldo Carvalho de Melo continue; 82934ba5122SArnaldo Carvalho de Melo machine = &session->machines.host; 830743eb868SArnaldo Carvalho de Melo break; 831743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_KERNEL: 8321758af10SArnaldo Carvalho de Melo ++top->kernel_samples; 8331758af10SArnaldo Carvalho de Melo if (top->hide_kernel_symbols) 834743eb868SArnaldo Carvalho de Melo continue; 83534ba5122SArnaldo Carvalho de Melo machine = &session->machines.host; 836743eb868SArnaldo Carvalho de Melo break; 837743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_KERNEL: 8381758af10SArnaldo Carvalho de Melo ++top->guest_kernel_samples; 8391758af10SArnaldo Carvalho de Melo machine = perf_session__find_machine(session, event->ip.pid); 840743eb868SArnaldo Carvalho de Melo break; 841743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_USER: 8421758af10SArnaldo Carvalho de Melo ++top->guest_us_samples; 843743eb868SArnaldo Carvalho de Melo /* 844743eb868SArnaldo Carvalho de Melo * TODO: we don't process guest user from host side 845743eb868SArnaldo Carvalho de Melo * except simple counting. 846743eb868SArnaldo Carvalho de Melo */ 847743eb868SArnaldo Carvalho de Melo /* Fall thru */ 848743eb868SArnaldo Carvalho de Melo default: 849743eb868SArnaldo Carvalho de Melo continue; 850743eb868SArnaldo Carvalho de Melo } 851743eb868SArnaldo Carvalho de Melo 852743eb868SArnaldo Carvalho de Melo 8531758af10SArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) { 8541758af10SArnaldo Carvalho de Melo perf_event__process_sample(&top->tool, event, evsel, 8551758af10SArnaldo Carvalho de Melo &sample, machine); 8561758af10SArnaldo Carvalho de Melo } else if (event->header.type < PERF_RECORD_MAX) { 8577b27509fSArnaldo Carvalho de Melo hists__inc_nr_events(&evsel->hists, event->header.type); 858b0a7d1a0SArnaldo Carvalho de Melo machine__process_event(machine, event); 8597b27509fSArnaldo Carvalho de Melo } else 86028a6b6aaSArnaldo Carvalho de Melo ++session->stats.nr_unknown_events; 86186470930SIngo Molnar } 86286470930SIngo Molnar } 86386470930SIngo Molnar 8641758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read(struct perf_top *top) 8652f01190aSFrederic Weisbecker { 86670db7533SArnaldo Carvalho de Melo int i; 8672f01190aSFrederic Weisbecker 8681758af10SArnaldo Carvalho de Melo for (i = 0; i < top->evlist->nr_mmaps; i++) 8691758af10SArnaldo Carvalho de Melo perf_top__mmap_read_idx(top, i); 8702f01190aSFrederic Weisbecker } 8712f01190aSFrederic Weisbecker 87211859e82SArnaldo Carvalho de Melo static int perf_top__start_counters(struct perf_top *top) 87372cb7013SArnaldo Carvalho de Melo { 87456e52e85SArnaldo Carvalho de Melo char msg[512]; 8756a4bb04cSJiri Olsa struct perf_evsel *counter; 8761758af10SArnaldo Carvalho de Melo struct perf_evlist *evlist = top->evlist; 8772376c67aSArnaldo Carvalho de Melo struct perf_record_opts *opts = &top->record_opts; 878727ab04eSArnaldo Carvalho de Melo 8792376c67aSArnaldo Carvalho de Melo perf_evlist__config(evlist, opts); 88072cb7013SArnaldo Carvalho de Melo 88172cb7013SArnaldo Carvalho de Melo list_for_each_entry(counter, &evlist->entries, node) { 88272cb7013SArnaldo Carvalho de Melo try_again: 8831758af10SArnaldo Carvalho de Melo if (perf_evsel__open(counter, top->evlist->cpus, 8846a4bb04cSJiri Olsa top->evlist->threads) < 0) { 88556e52e85SArnaldo Carvalho de Melo if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { 88672cb7013SArnaldo Carvalho de Melo if (verbose) 887c0a54341SArnaldo Carvalho de Melo ui__warning("%s\n", msg); 88872cb7013SArnaldo Carvalho de Melo goto try_again; 88972cb7013SArnaldo Carvalho de Melo } 890c286c419SArnaldo Carvalho de Melo 89156e52e85SArnaldo Carvalho de Melo perf_evsel__open_strerror(counter, &opts->target, 89256e52e85SArnaldo Carvalho de Melo errno, msg, sizeof(msg)); 89356e52e85SArnaldo Carvalho de Melo ui__error("%s\n", msg); 894c286c419SArnaldo Carvalho de Melo goto out_err; 89572cb7013SArnaldo Carvalho de Melo } 89672cb7013SArnaldo Carvalho de Melo } 89770db7533SArnaldo Carvalho de Melo 8982376c67aSArnaldo Carvalho de Melo if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { 8993780f488SNamhyung Kim ui__error("Failed to mmap with %d (%s)\n", 900c286c419SArnaldo Carvalho de Melo errno, strerror(errno)); 901c286c419SArnaldo Carvalho de Melo goto out_err; 902c286c419SArnaldo Carvalho de Melo } 903c286c419SArnaldo Carvalho de Melo 90411859e82SArnaldo Carvalho de Melo return 0; 905c286c419SArnaldo Carvalho de Melo 906c286c419SArnaldo Carvalho de Melo out_err: 90711859e82SArnaldo Carvalho de Melo return -1; 90872cb7013SArnaldo Carvalho de Melo } 90972cb7013SArnaldo Carvalho de Melo 9108f0f684bSNamhyung Kim static int perf_top__setup_sample_type(struct perf_top *top __maybe_unused) 91119d4ac3cSArnaldo Carvalho de Melo { 9128f0f684bSNamhyung Kim if (!sort__has_sym) { 91319d4ac3cSArnaldo Carvalho de Melo if (symbol_conf.use_callchain) { 9143780f488SNamhyung Kim ui__error("Selected -g but \"sym\" not present in --sort/-s."); 91519d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 91619d4ac3cSArnaldo Carvalho de Melo } 9172376c67aSArnaldo Carvalho de Melo } else if (callchain_param.mode != CHAIN_NONE) { 91819d4ac3cSArnaldo Carvalho de Melo if (callchain_register_param(&callchain_param) < 0) { 9193780f488SNamhyung Kim ui__error("Can't register callchain params.\n"); 92019d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 92119d4ac3cSArnaldo Carvalho de Melo } 92219d4ac3cSArnaldo Carvalho de Melo } 92319d4ac3cSArnaldo Carvalho de Melo 92419d4ac3cSArnaldo Carvalho de Melo return 0; 92519d4ac3cSArnaldo Carvalho de Melo } 92619d4ac3cSArnaldo Carvalho de Melo 9271758af10SArnaldo Carvalho de Melo static int __cmd_top(struct perf_top *top) 928716c69feSIngo Molnar { 9292376c67aSArnaldo Carvalho de Melo struct perf_record_opts *opts = &top->record_opts; 930716c69feSIngo Molnar pthread_t thread; 93119d4ac3cSArnaldo Carvalho de Melo int ret; 932d8f66248SArnaldo Carvalho de Melo /* 933b3165f41SArnaldo Carvalho de Melo * FIXME: perf_session__new should allow passing a O_MMAP, so that all this 934b3165f41SArnaldo Carvalho de Melo * mmap reading, etc is encapsulated in it. Use O_WRONLY for now. 935d8f66248SArnaldo Carvalho de Melo */ 9361758af10SArnaldo Carvalho de Melo top->session = perf_session__new(NULL, O_WRONLY, false, false, NULL); 9371758af10SArnaldo Carvalho de Melo if (top->session == NULL) 938b3165f41SArnaldo Carvalho de Melo return -ENOMEM; 939716c69feSIngo Molnar 94036035f78SAdrian Hunter machines__set_symbol_filter(&top->session->machines, symbol_filter); 94136035f78SAdrian Hunter 9420d3942dbSSukadev Bhattiprolu if (!objdump_path) { 9430d3942dbSSukadev Bhattiprolu ret = perf_session_env__lookup_objdump(&top->session->header.env); 9440d3942dbSSukadev Bhattiprolu if (ret) 9450d3942dbSSukadev Bhattiprolu goto out_delete; 9460d3942dbSSukadev Bhattiprolu } 9470d3942dbSSukadev Bhattiprolu 9481758af10SArnaldo Carvalho de Melo ret = perf_top__setup_sample_type(top); 94919d4ac3cSArnaldo Carvalho de Melo if (ret) 95019d4ac3cSArnaldo Carvalho de Melo goto out_delete; 95119d4ac3cSArnaldo Carvalho de Melo 9522376c67aSArnaldo Carvalho de Melo if (perf_target__has_task(&opts->target)) 9531758af10SArnaldo Carvalho de Melo perf_event__synthesize_thread_map(&top->tool, top->evlist->threads, 954743eb868SArnaldo Carvalho de Melo perf_event__process, 955876650e6SArnaldo Carvalho de Melo &top->session->machines.host); 9565b2bb75aSArnaldo Carvalho de Melo else 9571758af10SArnaldo Carvalho de Melo perf_event__synthesize_threads(&top->tool, perf_event__process, 958876650e6SArnaldo Carvalho de Melo &top->session->machines.host); 95911859e82SArnaldo Carvalho de Melo 96011859e82SArnaldo Carvalho de Melo ret = perf_top__start_counters(top); 96111859e82SArnaldo Carvalho de Melo if (ret) 96211859e82SArnaldo Carvalho de Melo goto out_delete; 96311859e82SArnaldo Carvalho de Melo 9641758af10SArnaldo Carvalho de Melo top->session->evlist = top->evlist; 9657b56cce2SArnaldo Carvalho de Melo perf_session__set_id_hdr_size(top->session); 96686470930SIngo Molnar 9672376c67aSArnaldo Carvalho de Melo /* 9682376c67aSArnaldo Carvalho de Melo * When perf is starting the traced process, all the events (apart from 9692376c67aSArnaldo Carvalho de Melo * group members) have enable_on_exec=1 set, so don't spoil it by 9702376c67aSArnaldo Carvalho de Melo * prematurely enabling them. 9712376c67aSArnaldo Carvalho de Melo * 9722376c67aSArnaldo Carvalho de Melo * XXX 'top' still doesn't start workloads like record, trace, but should, 9732376c67aSArnaldo Carvalho de Melo * so leave the check here. 9742376c67aSArnaldo Carvalho de Melo */ 9752376c67aSArnaldo Carvalho de Melo if (!perf_target__none(&opts->target)) 9762376c67aSArnaldo Carvalho de Melo perf_evlist__enable(top->evlist); 9772376c67aSArnaldo Carvalho de Melo 9782f01190aSFrederic Weisbecker /* Wait for a minimal set of events before starting the snapshot */ 9791758af10SArnaldo Carvalho de Melo poll(top->evlist->pollfd, top->evlist->nr_fds, 100); 9802f01190aSFrederic Weisbecker 9811758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 9822f01190aSFrederic Weisbecker 98311859e82SArnaldo Carvalho de Melo ret = -1; 984c0443df1SArnaldo Carvalho de Melo if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : 9851758af10SArnaldo Carvalho de Melo display_thread), top)) { 9863780f488SNamhyung Kim ui__error("Could not create display thread.\n"); 98711859e82SArnaldo Carvalho de Melo goto out_delete; 98886470930SIngo Molnar } 98986470930SIngo Molnar 9901758af10SArnaldo Carvalho de Melo if (top->realtime_prio) { 99186470930SIngo Molnar struct sched_param param; 99286470930SIngo Molnar 9931758af10SArnaldo Carvalho de Melo param.sched_priority = top->realtime_prio; 99486470930SIngo Molnar if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { 9953780f488SNamhyung Kim ui__error("Could not set realtime priority.\n"); 99611859e82SArnaldo Carvalho de Melo goto out_delete; 99786470930SIngo Molnar } 99886470930SIngo Molnar } 99986470930SIngo Molnar 100011859e82SArnaldo Carvalho de Melo while (!done) { 10011758af10SArnaldo Carvalho de Melo u64 hits = top->samples; 100286470930SIngo Molnar 10031758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 100486470930SIngo Molnar 10051758af10SArnaldo Carvalho de Melo if (hits == top->samples) 10061758af10SArnaldo Carvalho de Melo ret = poll(top->evlist->pollfd, top->evlist->nr_fds, 100); 100786470930SIngo Molnar } 100886470930SIngo Molnar 100911859e82SArnaldo Carvalho de Melo ret = 0; 101019d4ac3cSArnaldo Carvalho de Melo out_delete: 10111758af10SArnaldo Carvalho de Melo perf_session__delete(top->session); 10121758af10SArnaldo Carvalho de Melo top->session = NULL; 101319d4ac3cSArnaldo Carvalho de Melo 101411859e82SArnaldo Carvalho de Melo return ret; 101519d4ac3cSArnaldo Carvalho de Melo } 101619d4ac3cSArnaldo Carvalho de Melo 101719d4ac3cSArnaldo Carvalho de Melo static int 10181758af10SArnaldo Carvalho de Melo parse_callchain_opt(const struct option *opt, const char *arg, int unset) 101919d4ac3cSArnaldo Carvalho de Melo { 102019d4ac3cSArnaldo Carvalho de Melo /* 102119d4ac3cSArnaldo Carvalho de Melo * --no-call-graph 102219d4ac3cSArnaldo Carvalho de Melo */ 10232376c67aSArnaldo Carvalho de Melo if (unset) 102419d4ac3cSArnaldo Carvalho de Melo return 0; 102519d4ac3cSArnaldo Carvalho de Melo 102619d4ac3cSArnaldo Carvalho de Melo symbol_conf.use_callchain = true; 102719d4ac3cSArnaldo Carvalho de Melo 10282376c67aSArnaldo Carvalho de Melo return record_parse_callchain_opt(opt, arg, unset); 102986470930SIngo Molnar } 103086470930SIngo Molnar 1031fa5df943SNamhyung Kim static int 1032fa5df943SNamhyung Kim parse_percent_limit(const struct option *opt, const char *arg, 1033fa5df943SNamhyung Kim int unset __maybe_unused) 1034fa5df943SNamhyung Kim { 1035fa5df943SNamhyung Kim struct perf_top *top = opt->value; 1036fa5df943SNamhyung Kim 1037fa5df943SNamhyung Kim top->min_percent = strtof(arg, NULL); 1038fa5df943SNamhyung Kim return 0; 1039fa5df943SNamhyung Kim } 1040fa5df943SNamhyung Kim 10411d037ca1SIrina Tirdea int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) 10421758af10SArnaldo Carvalho de Melo { 104316ad2ffbSNamhyung Kim int status; 104416ad2ffbSNamhyung Kim char errbuf[BUFSIZ]; 10451758af10SArnaldo Carvalho de Melo struct perf_top top = { 10461758af10SArnaldo Carvalho de Melo .count_filter = 5, 10471758af10SArnaldo Carvalho de Melo .delay_secs = 2, 10482376c67aSArnaldo Carvalho de Melo .record_opts = { 10492376c67aSArnaldo Carvalho de Melo .mmap_pages = UINT_MAX, 10502376c67aSArnaldo Carvalho de Melo .user_freq = UINT_MAX, 10512376c67aSArnaldo Carvalho de Melo .user_interval = ULLONG_MAX, 1052447a6013SArnaldo Carvalho de Melo .freq = 4000, /* 4 KHz */ 1053d1cb9fceSNamhyung Kim .target = { 1054d1cb9fceSNamhyung Kim .uses_mmap = true, 1055d1cb9fceSNamhyung Kim }, 10562376c67aSArnaldo Carvalho de Melo }, 10572376c67aSArnaldo Carvalho de Melo .sym_pcnt_filter = 5, 10581758af10SArnaldo Carvalho de Melo }; 10592376c67aSArnaldo Carvalho de Melo struct perf_record_opts *opts = &top.record_opts; 10602376c67aSArnaldo Carvalho de Melo struct perf_target *target = &opts->target; 10611758af10SArnaldo Carvalho de Melo const struct option options[] = { 10628c3e10ebSArnaldo Carvalho de Melo OPT_CALLBACK('e', "event", &top.evlist, "event", 106386470930SIngo Molnar "event selector. use 'perf list' to list available events", 1064f120f9d5SJiri Olsa parse_events_option), 10652376c67aSArnaldo Carvalho de Melo OPT_U64('c', "count", &opts->user_interval, "event period to sample"), 10662376c67aSArnaldo Carvalho de Melo OPT_STRING('p', "pid", &target->pid, "pid", 1067d6d901c2SZhang, Yanmin "profile events on existing process id"), 10682376c67aSArnaldo Carvalho de Melo OPT_STRING('t', "tid", &target->tid, "tid", 1069d6d901c2SZhang, Yanmin "profile events on existing thread id"), 10702376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('a', "all-cpus", &target->system_wide, 107186470930SIngo Molnar "system-wide collection from all CPUs"), 10722376c67aSArnaldo Carvalho de Melo OPT_STRING('C', "cpu", &target->cpu_list, "cpu", 1073c45c6ea2SStephane Eranian "list of cpus to monitor"), 1074b32d133aSArnaldo Carvalho de Melo OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1075b32d133aSArnaldo Carvalho de Melo "file", "vmlinux pathname"), 10768c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, 10778ffcda17SArnaldo Carvalho de Melo "hide kernel symbols"), 10782376c67aSArnaldo Carvalho de Melo OPT_UINTEGER('m', "mmap-pages", &opts->mmap_pages, 10792376c67aSArnaldo Carvalho de Melo "number of mmap data pages"), 10801758af10SArnaldo Carvalho de Melo OPT_INTEGER('r', "realtime", &top.realtime_prio, 108186470930SIngo Molnar "collect data with this RT SCHED_FIFO priority"), 10828c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('d', "delay", &top.delay_secs, 108386470930SIngo Molnar "number of seconds to delay between refreshes"), 10841758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, 108586470930SIngo Molnar "dump the symbol table used for profiling"), 10868c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('f', "count-filter", &top.count_filter, 108786470930SIngo Molnar "only display functions with more events than this"), 10882376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('g', "group", &opts->group, 108986470930SIngo Molnar "put the counters into a counter group"), 10902376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, 10912376c67aSArnaldo Carvalho de Melo "child tasks do not inherit counters"), 10921758af10SArnaldo Carvalho de Melo OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", 10936cff0e8dSKirill Smelkov "symbol to annotate"), 10942376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), 10952376c67aSArnaldo Carvalho de Melo OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), 10968c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('E', "entries", &top.print_entries, 109786470930SIngo Molnar "display this many functions"), 10988c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, 10998ffcda17SArnaldo Carvalho de Melo "hide user symbols"), 11001758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), 11011758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), 1102c0555642SIan Munsie OPT_INCR('v', "verbose", &verbose, 11033da297a6SIngo Molnar "be more verbose (show counter open errors, etc)"), 1104ab81f3fdSArnaldo Carvalho de Melo OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 110505484298SAndi Kleen "sort by key(s): pid, comm, dso, symbol, parent, weight, local_weight"), 1106ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 1107ab81f3fdSArnaldo Carvalho de Melo "Show a column with the number of samples"), 11082376c67aSArnaldo Carvalho de Melo OPT_CALLBACK_DEFAULT('G', "call-graph", &top.record_opts, 11092376c67aSArnaldo Carvalho de Melo "mode[,dump_size]", record_callchain_help, 11102376c67aSArnaldo Carvalho de Melo &parse_callchain_opt, "fp"), 1111b21484f1SGreg Price OPT_CALLBACK(0, "ignore-callees", NULL, "regex", 1112b21484f1SGreg Price "ignore callees of these functions in call graphs", 1113b21484f1SGreg Price report_parse_ignore_callees_opt), 1114ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 1115ab81f3fdSArnaldo Carvalho de Melo "Show a column with the sum of periods"), 1116ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 1117ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these dsos"), 1118ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1119ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these comms"), 1120ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1121ab81f3fdSArnaldo Carvalho de Melo "only consider these symbols"), 112264c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, 112364c6f0c7SArnaldo Carvalho de Melo "Interleave source code with assembly code (default)"), 112464c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, 112564c6f0c7SArnaldo Carvalho de Melo "Display raw encoding of assembly instructions (default)"), 11260d3942dbSSukadev Bhattiprolu OPT_STRING(0, "objdump", &objdump_path, "path", 11270d3942dbSSukadev Bhattiprolu "objdump binary to use for disassembly and annotations"), 112864c6f0c7SArnaldo Carvalho de Melo OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", 112964c6f0c7SArnaldo Carvalho de Melo "Specify disassembler style (e.g. -M intel for intel syntax)"), 11302376c67aSArnaldo Carvalho de Melo OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), 1131fa5df943SNamhyung Kim OPT_CALLBACK(0, "percent-limit", &top, "percent", 1132fa5df943SNamhyung Kim "Don't show entries under that percent", parse_percent_limit), 113386470930SIngo Molnar OPT_END() 113486470930SIngo Molnar }; 1135be772842SArnaldo Carvalho de Melo const char * const top_usage[] = { 1136be772842SArnaldo Carvalho de Melo "perf top [<options>]", 1137be772842SArnaldo Carvalho de Melo NULL 1138be772842SArnaldo Carvalho de Melo }; 113986470930SIngo Molnar 1140334fe7a3SNamhyung Kim top.evlist = perf_evlist__new(); 11418c3e10ebSArnaldo Carvalho de Melo if (top.evlist == NULL) 1142361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1143361c99a6SArnaldo Carvalho de Melo 114486470930SIngo Molnar argc = parse_options(argc, argv, options, top_usage, 0); 114586470930SIngo Molnar if (argc) 114686470930SIngo Molnar usage_with_options(top_usage, options); 114786470930SIngo Molnar 1148ab81f3fdSArnaldo Carvalho de Melo if (sort_order == default_sort_order) 1149ab81f3fdSArnaldo Carvalho de Melo sort_order = "dso,symbol"; 1150ab81f3fdSArnaldo Carvalho de Melo 115155309985SNamhyung Kim if (setup_sorting() < 0) 115255309985SNamhyung Kim usage_with_options(top_usage, options); 1153ab81f3fdSArnaldo Carvalho de Melo 11543a5714f8SNamhyung Kim /* display thread wants entries to be collapsed in a different tree */ 11553a5714f8SNamhyung Kim sort__need_collapse = 1; 11563a5714f8SNamhyung Kim 11571758af10SArnaldo Carvalho de Melo if (top.use_stdio) 1158c0443df1SArnaldo Carvalho de Melo use_browser = 0; 11591758af10SArnaldo Carvalho de Melo else if (top.use_tui) 1160c0443df1SArnaldo Carvalho de Melo use_browser = 1; 1161c0443df1SArnaldo Carvalho de Melo 1162c0443df1SArnaldo Carvalho de Melo setup_browser(false); 1163c0443df1SArnaldo Carvalho de Melo 11642376c67aSArnaldo Carvalho de Melo status = perf_target__validate(target); 116516ad2ffbSNamhyung Kim if (status) { 11662376c67aSArnaldo Carvalho de Melo perf_target__strerror(target, status, errbuf, BUFSIZ); 116716ad2ffbSNamhyung Kim ui__warning("%s", errbuf); 116816ad2ffbSNamhyung Kim } 11694bd0f2d2SNamhyung Kim 11702376c67aSArnaldo Carvalho de Melo status = perf_target__parse_uid(target); 117116ad2ffbSNamhyung Kim if (status) { 117216ad2ffbSNamhyung Kim int saved_errno = errno; 117316ad2ffbSNamhyung Kim 11742376c67aSArnaldo Carvalho de Melo perf_target__strerror(target, status, errbuf, BUFSIZ); 11753780f488SNamhyung Kim ui__error("%s", errbuf); 117616ad2ffbSNamhyung Kim 117716ad2ffbSNamhyung Kim status = -saved_errno; 11780d37aa34SArnaldo Carvalho de Melo goto out_delete_evlist; 117916ad2ffbSNamhyung Kim } 11800d37aa34SArnaldo Carvalho de Melo 11812376c67aSArnaldo Carvalho de Melo if (perf_target__none(target)) 11822376c67aSArnaldo Carvalho de Melo target->system_wide = true; 118310b47d54SArnaldo Carvalho de Melo 11842376c67aSArnaldo Carvalho de Melo if (perf_evlist__create_maps(top.evlist, target) < 0) 11857e2ed097SArnaldo Carvalho de Melo usage_with_options(top_usage, options); 11867e2ed097SArnaldo Carvalho de Melo 11878c3e10ebSArnaldo Carvalho de Melo if (!top.evlist->nr_entries && 11888c3e10ebSArnaldo Carvalho de Melo perf_evlist__add_default(top.evlist) < 0) { 11893780f488SNamhyung Kim ui__error("Not enough memory for event selector list\n"); 11900de233b9SArnaldo Carvalho de Melo goto out_delete_maps; 119169aad6f1SArnaldo Carvalho de Melo } 11925a8e5a30SArnaldo Carvalho de Melo 1193d04b35f8SArnaldo Carvalho de Melo symbol_conf.nr_events = top.evlist->nr_entries; 1194d04b35f8SArnaldo Carvalho de Melo 11958c3e10ebSArnaldo Carvalho de Melo if (top.delay_secs < 1) 11968c3e10ebSArnaldo Carvalho de Melo top.delay_secs = 1; 119786470930SIngo Molnar 11982376c67aSArnaldo Carvalho de Melo if (opts->user_interval != ULLONG_MAX) 11992376c67aSArnaldo Carvalho de Melo opts->default_interval = opts->user_interval; 12002376c67aSArnaldo Carvalho de Melo if (opts->user_freq != UINT_MAX) 12012376c67aSArnaldo Carvalho de Melo opts->freq = opts->user_freq; 12022376c67aSArnaldo Carvalho de Melo 12037e4ff9e3SMike Galbraith /* 12047e4ff9e3SMike Galbraith * User specified count overrides default frequency. 12057e4ff9e3SMike Galbraith */ 12062376c67aSArnaldo Carvalho de Melo if (opts->default_interval) 12072376c67aSArnaldo Carvalho de Melo opts->freq = 0; 12082376c67aSArnaldo Carvalho de Melo else if (opts->freq) { 12092376c67aSArnaldo Carvalho de Melo opts->default_interval = opts->freq; 12107e4ff9e3SMike Galbraith } else { 12113780f488SNamhyung Kim ui__error("frequency and count are zero, aborting\n"); 12122376c67aSArnaldo Carvalho de Melo status = -EINVAL; 12130de233b9SArnaldo Carvalho de Melo goto out_delete_maps; 121469aad6f1SArnaldo Carvalho de Melo } 121569aad6f1SArnaldo Carvalho de Melo 12160c21f736SArnaldo Carvalho de Melo top.sym_evsel = perf_evlist__first(top.evlist); 1217cc841580SArnaldo Carvalho de Melo 1218ab81f3fdSArnaldo Carvalho de Melo symbol_conf.priv_size = sizeof(struct annotation); 121969aad6f1SArnaldo Carvalho de Melo 122069aad6f1SArnaldo Carvalho de Melo symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); 122169aad6f1SArnaldo Carvalho de Melo if (symbol__init() < 0) 122269aad6f1SArnaldo Carvalho de Melo return -1; 122369aad6f1SArnaldo Carvalho de Melo 122408e71542SNamhyung Kim sort__setup_elide(stdout); 1225ab81f3fdSArnaldo Carvalho de Melo 12261758af10SArnaldo Carvalho de Melo get_term_dimensions(&top.winsize); 12278c3e10ebSArnaldo Carvalho de Melo if (top.print_entries == 0) { 12281758af10SArnaldo Carvalho de Melo struct sigaction act = { 12291758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 12301758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 12311758af10SArnaldo Carvalho de Melo }; 12321758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(&top); 12331758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 12343b6ed988SArnaldo Carvalho de Melo } 12353b6ed988SArnaldo Carvalho de Melo 12361758af10SArnaldo Carvalho de Melo status = __cmd_top(&top); 1237806fb630SArnaldo Carvalho de Melo 12380de233b9SArnaldo Carvalho de Melo out_delete_maps: 12390de233b9SArnaldo Carvalho de Melo perf_evlist__delete_maps(top.evlist); 12400d37aa34SArnaldo Carvalho de Melo out_delete_evlist: 12418c3e10ebSArnaldo Carvalho de Melo perf_evlist__delete(top.evlist); 124269aad6f1SArnaldo Carvalho de Melo 124369aad6f1SArnaldo Carvalho de Melo return status; 124486470930SIngo Molnar } 1245