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Ingo Molnar07800602009-04-20 15:00:56 +02001/*
Ingo Molnarbf9e1872009-06-02 23:37:05 +02002 * builtin-top.c
3 *
4 * Builtin top command: Display a continuously updated profile of
5 * any workload, CPU or specific PID.
6 *
7 * Copyright (C) 2008, Red Hat Inc, Ingo Molnar <mingo@redhat.com>
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03008 * 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
Ingo Molnarbf9e1872009-06-02 23:37:05 +02009 *
10 * Improvements and fixes by:
11 *
12 * Arjan van de Ven <arjan@linux.intel.com>
13 * Yanmin Zhang <yanmin.zhang@intel.com>
14 * Wu Fengguang <fengguang.wu@intel.com>
15 * Mike Galbraith <efault@gmx.de>
16 * Paul Mackerras <paulus@samba.org>
17 *
18 * Released under the GPL v2. (and only v2, not any later version)
Ingo Molnar07800602009-04-20 15:00:56 +020019 */
Ingo Molnarbf9e1872009-06-02 23:37:05 +020020#include "builtin.h"
Ingo Molnar07800602009-04-20 15:00:56 +020021
Peter Zijlstra1a482f32009-05-23 18:28:58 +020022#include "perf.h"
Ingo Molnarbf9e1872009-06-02 23:37:05 +020023
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -020024#include "util/annotate.h"
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -020025#include "util/cache.h"
Ingo Molnar8fc03212009-06-04 15:19:47 +020026#include "util/color.h"
Arnaldo Carvalho de Melo361c99a2011-01-11 20:56:53 -020027#include "util/evlist.h"
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020028#include "util/evsel.h"
Arnaldo Carvalho de Melob0a7d1a2012-10-06 16:26:02 -030029#include "util/machine.h"
Arnaldo Carvalho de Melob3165f42009-12-13 19:50:28 -020030#include "util/session.h"
31#include "util/symbol.h"
Arnaldo Carvalho de Melo439d4732009-10-02 03:29:58 -030032#include "util/thread.h"
Arnaldo Carvalho de Melofd782602011-01-18 15:15:24 -020033#include "util/thread_map.h"
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -020034#include "util/top.h"
Ingo Molnar148be2c2009-04-27 08:02:14 +020035#include "util/util.h"
Arnaldo Carvalho de Melo43cbcd82009-07-01 12:28:37 -030036#include <linux/rbtree.h>
Josh Poimboeuf4b6ab942015-12-15 09:39:39 -060037#include <subcmd/parse-options.h>
Ingo Molnarb456bae2009-05-26 09:17:18 +020038#include "util/parse-events.h"
Paul Mackerrasa12b51c2010-03-10 20:36:09 +110039#include "util/cpumap.h"
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020040#include "util/xyarray.h"
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -030041#include "util/sort.h"
David Ahern6b118e92012-07-30 22:31:35 -060042#include "util/intlist.h"
Andi Kleena18b0272015-07-18 08:24:52 -070043#include "util/parse-branch-options.h"
Sukadev Bhattiprolu0d3942d2013-05-14 22:56:51 -070044#include "arch/common.h"
Ingo Molnar07800602009-04-20 15:00:56 +020045
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +020046#include "util/debug.h"
47
Ingo Molnar07800602009-04-20 15:00:56 +020048#include <assert.h>
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -030049#include <elf.h>
Ingo Molnar07800602009-04-20 15:00:56 +020050#include <fcntl.h>
Ingo Molnar0e9b20b2009-05-26 09:17:18 +020051
Ingo Molnar07800602009-04-20 15:00:56 +020052#include <stdio.h>
Mike Galbraith923c42c2009-07-22 20:36:03 +020053#include <termios.h>
54#include <unistd.h>
Arnaldo Carvalho de Melo9486aa32011-01-22 20:37:02 -020055#include <inttypes.h>
Ingo Molnar0e9b20b2009-05-26 09:17:18 +020056
Ingo Molnar07800602009-04-20 15:00:56 +020057#include <errno.h>
Ingo Molnar07800602009-04-20 15:00:56 +020058#include <time.h>
59#include <sched.h>
Ingo Molnar07800602009-04-20 15:00:56 +020060
61#include <sys/syscall.h>
62#include <sys/ioctl.h>
Arnaldo Carvalho de Meloa8fa4962014-09-15 15:54:34 -030063#include <poll.h>
Ingo Molnar07800602009-04-20 15:00:56 +020064#include <sys/prctl.h>
65#include <sys/wait.h>
66#include <sys/uio.h>
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -030067#include <sys/utsname.h>
Ingo Molnar07800602009-04-20 15:00:56 +020068#include <sys/mman.h>
69
Ingo Molnar07800602009-04-20 15:00:56 +020070#include <linux/types.h>
71
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -030072static volatile int done;
73
Namhyung Kim933cbb12013-05-14 11:08:59 +090074#define HEADER_LINE_NR 5
75
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -020076static void perf_top__update_print_entries(struct perf_top *top)
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -020077{
Namhyung Kim933cbb12013-05-14 11:08:59 +090078 top->print_entries = top->winsize.ws_row - HEADER_LINE_NR;
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -020079}
80
Irina Tirdea1d037ca2012-09-11 01:15:03 +030081static void perf_top__sig_winch(int sig __maybe_unused,
82 siginfo_t *info __maybe_unused, void *arg)
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -020083{
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -020084 struct perf_top *top = arg;
85
86 get_term_dimensions(&top->winsize);
87 perf_top__update_print_entries(top);
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -020088}
89
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -020090static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he)
Mike Galbraith923c42c2009-07-22 20:36:03 +020091{
92 struct symbol *sym;
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -020093 struct annotation *notes;
Arnaldo Carvalho de Melo439d4732009-10-02 03:29:58 -030094 struct map *map;
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -020095 int err = -1;
Mike Galbraith923c42c2009-07-22 20:36:03 +020096
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -030097 if (!he || !he->ms.sym)
Arnaldo Carvalho de Melob0a9ab62010-03-15 11:46:58 -030098 return -1;
99
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300100 sym = he->ms.sym;
101 map = he->ms.map;
Arnaldo Carvalho de Melob0a9ab62010-03-15 11:46:58 -0300102
103 /*
104 * We can't annotate with just /proc/kallsyms
105 */
Adrian Hunterbbb7f842013-08-07 14:38:54 +0300106 if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
107 !dso__is_kcore(map->dso)) {
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200108 pr_err("Can't annotate %s: No vmlinux file was found in the "
109 "path\n", sym->name);
110 sleep(1);
Arnaldo Carvalho de Melob0a9ab62010-03-15 11:46:58 -0300111 return -1;
Arnaldo Carvalho de Melob2698762009-11-17 18:38:02 -0200112 }
113
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200114 notes = symbol__annotation(sym);
115 if (notes->src != NULL) {
116 pthread_mutex_lock(&notes->lock);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200117 goto out_assign;
118 }
Mike Galbraith923c42c2009-07-22 20:36:03 +0200119
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200120 pthread_mutex_lock(&notes->lock);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200121
Arnaldo Carvalho de Melod04b35f2011-11-11 22:17:32 -0200122 if (symbol__alloc_hist(sym) < 0) {
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300123 pthread_mutex_unlock(&notes->lock);
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200124 pr_err("Not enough memory for annotating '%s' symbol!\n",
125 sym->name);
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200126 sleep(1);
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300127 return err;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200128 }
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200129
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300130 err = symbol__annotate(sym, map, 0);
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200131 if (err == 0) {
Mike Galbraith923c42c2009-07-22 20:36:03 +0200132out_assign:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200133 top->sym_filter_entry = he;
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200134 }
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300135
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200136 pthread_mutex_unlock(&notes->lock);
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200137 return err;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200138}
139
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300140static void __zero_source_counters(struct hist_entry *he)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200141{
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300142 struct symbol *sym = he->ms.sym;
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200143 symbol__annotate_zero_histograms(sym);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200144}
145
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -0300146static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip)
147{
148 struct utsname uts;
149 int err = uname(&uts);
150
151 ui__warning("Out of bounds address found:\n\n"
152 "Addr: %" PRIx64 "\n"
153 "DSO: %s %c\n"
154 "Map: %" PRIx64 "-%" PRIx64 "\n"
155 "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n"
156 "Arch: %s\n"
157 "Kernel: %s\n"
158 "Tools: %s\n\n"
159 "Not all samples will be on the annotation output.\n\n"
160 "Please report to linux-kernel@vger.kernel.org\n",
161 ip, map->dso->long_name, dso__symtab_origin(map->dso),
162 map->start, map->end, sym->start, sym->end,
163 sym->binding == STB_GLOBAL ? 'g' :
164 sym->binding == STB_LOCAL ? 'l' : 'w', sym->name,
165 err ? "[unknown]" : uts.machine,
166 err ? "[unknown]" : uts.release, perf_version_string);
167 if (use_browser <= 0)
168 sleep(5);
Arnaldo Carvalho de Melo48000a12014-12-17 17:24:45 -0300169
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -0300170 map->erange_warned = true;
171}
172
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200173static void perf_top__record_precise_ip(struct perf_top *top,
174 struct hist_entry *he,
175 int counter, u64 ip)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200176{
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200177 struct annotation *notes;
Namhyung Kimbeefb8d2015-12-11 11:56:56 +0900178 struct symbol *sym = he->ms.sym;
Namhyung Kim48c65bd2014-02-20 10:32:53 +0900179 int err = 0;
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200180
Namhyung Kimbeefb8d2015-12-11 11:56:56 +0900181 if (sym == NULL || (use_browser == 0 &&
182 (top->sym_filter_entry == NULL ||
183 top->sym_filter_entry->ms.sym != sym)))
Mike Galbraith923c42c2009-07-22 20:36:03 +0200184 return;
185
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200186 notes = symbol__annotation(sym);
187
188 if (pthread_mutex_trylock(&notes->lock))
Mike Galbraith923c42c2009-07-22 20:36:03 +0200189 return;
190
Namhyung Kim448f13b2015-12-11 11:56:55 +0900191 err = hist_entry__inc_addr_samples(he, counter, ip);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200192
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200193 pthread_mutex_unlock(&notes->lock);
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -0300194
Namhyung Kim151ee832015-12-11 11:56:54 +0900195 if (unlikely(err)) {
196 /*
197 * This function is now called with he->hists->lock held.
198 * Release it before going to sleep.
199 */
200 pthread_mutex_unlock(&he->hists->lock);
Namhyung Kim7c503912014-01-07 17:41:03 +0900201
Namhyung Kim151ee832015-12-11 11:56:54 +0900202 if (err == -ERANGE && !he->ms.map->erange_warned)
203 ui__warn_map_erange(he->ms.map, sym, ip);
204 else if (err == -ENOMEM) {
205 pr_err("Not enough memory for annotating '%s' symbol!\n",
206 sym->name);
207 sleep(1);
208 }
209
210 pthread_mutex_lock(&he->hists->lock);
Arnaldo Carvalho de Melob66d8c02013-12-18 15:37:41 -0300211 }
Mike Galbraith923c42c2009-07-22 20:36:03 +0200212}
213
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200214static void perf_top__show_details(struct perf_top *top)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200215{
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200216 struct hist_entry *he = top->sym_filter_entry;
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200217 struct annotation *notes;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200218 struct symbol *symbol;
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200219 int more;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200220
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300221 if (!he)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200222 return;
223
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300224 symbol = he->ms.sym;
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200225 notes = symbol__annotation(symbol);
226
227 pthread_mutex_lock(&notes->lock);
228
229 if (notes->src == NULL)
230 goto out_unlock;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200231
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300232 printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200233 printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200234
Namhyung Kimdb8fd072013-03-05 14:53:21 +0900235 more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel,
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200236 0, top->sym_pcnt_filter, top->print_entries, 4);
Arnaldo Carvalho de Melo5d484f92015-06-17 16:50:52 -0300237
238 if (top->evlist->enabled) {
239 if (top->zero)
240 symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx);
241 else
242 symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx);
243 }
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200244 if (more != 0)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200245 printf("%d lines not displayed, maybe increase display entries [e]\n", more);
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200246out_unlock:
247 pthread_mutex_unlock(&notes->lock);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200248}
Ingo Molnar07800602009-04-20 15:00:56 +0200249
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200250static void perf_top__print_sym_table(struct perf_top *top)
Ingo Molnar07800602009-04-20 15:00:56 +0200251{
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200252 char bf[160];
253 int printed = 0;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200254 const int win_width = top->winsize.ws_col - 1;
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300255 struct hists *hists = evsel__hists(top->sym_evsel);
Mike Galbraithd94b9432009-05-25 09:57:56 +0200256
Frederic Weisbecker0f5486b2009-06-04 20:48:04 +0200257 puts(CONSOLE_CLEAR);
Ingo Molnar07800602009-04-20 15:00:56 +0200258
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200259 perf_top__header_snprintf(top, bf, sizeof(bf));
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200260 printf("%s\n", bf);
Ingo Molnar07800602009-04-20 15:00:56 +0200261
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200262 perf_top__reset_sample_counters(top);
Ingo Molnar07800602009-04-20 15:00:56 +0200263
Arnaldo Carvalho de Melo1a105f72009-11-17 15:40:55 -0200264 printf("%-*.*s\n", win_width, win_width, graph_dotted_line);
Ingo Molnar07800602009-04-20 15:00:56 +0200265
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300266 if (hists->stats.nr_lost_warned !=
267 hists->stats.nr_events[PERF_RECORD_LOST]) {
268 hists->stats.nr_lost_warned =
269 hists->stats.nr_events[PERF_RECORD_LOST];
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200270 color_fprintf(stdout, PERF_COLOR_RED,
271 "WARNING: LOST %d chunks, Check IO/CPU overload",
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300272 hists->stats.nr_lost_warned);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300273 ++printed;
Arnaldo Carvalho de Melo93fc64f2011-01-29 12:08:00 -0200274 }
275
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200276 if (top->sym_filter_entry) {
277 perf_top__show_details(top);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200278 return;
279 }
280
Arnaldo Carvalho de Melo5d484f92015-06-17 16:50:52 -0300281 if (top->evlist->enabled) {
282 if (top->zero) {
283 hists__delete_entries(hists);
284 } else {
285 hists__decay_entries(hists, top->hide_user_symbols,
286 top->hide_kernel_symbols);
287 }
Namhyung Kim701937b2014-08-12 17:16:05 +0900288 }
289
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300290 hists__collapse_resort(hists, NULL);
Namhyung Kim740b97f2014-12-22 13:44:10 +0900291 hists__output_resort(hists, NULL);
Namhyung Kim701937b2014-08-12 17:16:05 +0900292
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300293 hists__output_recalc_col_len(hists, top->print_entries - printed);
Arnaldo Carvalho de Melo7cc017e2009-11-24 12:05:14 -0200294 putchar('\n');
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300295 hists__fprintf(hists, false, top->print_entries - printed, win_width,
Namhyung Kimfa5df942013-05-14 11:09:05 +0900296 top->min_percent, stdout);
Ingo Molnar07800602009-04-20 15:00:56 +0200297}
298
Mike Galbraith923c42c2009-07-22 20:36:03 +0200299static void prompt_integer(int *target, const char *msg)
300{
301 char *buf = malloc(0), *p;
302 size_t dummy = 0;
303 int tmp;
304
305 fprintf(stdout, "\n%s: ", msg);
306 if (getline(&buf, &dummy, stdin) < 0)
307 return;
308
309 p = strchr(buf, '\n');
310 if (p)
311 *p = 0;
312
313 p = buf;
314 while(*p) {
315 if (!isdigit(*p))
316 goto out_free;
317 p++;
318 }
319 tmp = strtoul(buf, NULL, 10);
320 *target = tmp;
321out_free:
322 free(buf);
323}
324
325static void prompt_percent(int *target, const char *msg)
326{
327 int tmp = 0;
328
329 prompt_integer(&tmp, msg);
330 if (tmp >= 0 && tmp <= 100)
331 *target = tmp;
332}
333
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200334static void perf_top__prompt_symbol(struct perf_top *top, const char *msg)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200335{
336 char *buf = malloc(0), *p;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200337 struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL;
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300338 struct hists *hists = evsel__hists(top->sym_evsel);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300339 struct rb_node *next;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200340 size_t dummy = 0;
341
342 /* zero counters of active symbol */
343 if (syme) {
Mike Galbraith923c42c2009-07-22 20:36:03 +0200344 __zero_source_counters(syme);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200345 top->sym_filter_entry = NULL;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200346 }
347
348 fprintf(stdout, "\n%s: ", msg);
349 if (getline(&buf, &dummy, stdin) < 0)
350 goto out_free;
351
352 p = strchr(buf, '\n');
353 if (p)
354 *p = 0;
355
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300356 next = rb_first(&hists->entries);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300357 while (next) {
358 n = rb_entry(next, struct hist_entry, rb_node);
359 if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) {
360 found = n;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200361 break;
362 }
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300363 next = rb_next(&n->rb_node);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200364 }
365
366 if (!found) {
Kirill Smelkov66aeb6d2010-01-13 13:22:19 -0200367 fprintf(stderr, "Sorry, %s is not active.\n", buf);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200368 sleep(1);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200369 } else
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200370 perf_top__parse_source(top, found);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200371
372out_free:
373 free(buf);
374}
375
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200376static void perf_top__print_mapped_keys(struct perf_top *top)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200377{
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200378 char *name = NULL;
379
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200380 if (top->sym_filter_entry) {
381 struct symbol *sym = top->sym_filter_entry->ms.sym;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200382 name = sym->name;
383 }
384
385 fprintf(stdout, "\nMapped keys:\n");
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200386 fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs);
387 fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200388
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200389 if (top->evlist->nr_entries > 1)
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300390 fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel));
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200391
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200392 fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200393
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200394 fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter);
Kirill Smelkov6cff0e82010-02-03 16:52:08 -0200395 fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL");
396 fprintf(stdout, "\t[S] stop annotation.\n");
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200397
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200398 fprintf(stdout,
Kirill Smelkov1a72cfa2010-02-12 19:20:59 +0300399 "\t[K] hide kernel_symbols symbols. \t(%s)\n",
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200400 top->hide_kernel_symbols ? "yes" : "no");
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200401 fprintf(stdout,
402 "\t[U] hide user symbols. \t(%s)\n",
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200403 top->hide_user_symbols ? "yes" : "no");
404 fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200405 fprintf(stdout, "\t[qQ] quit.\n");
406}
407
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200408static int perf_top__key_mapped(struct perf_top *top, int c)
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200409{
410 switch (c) {
411 case 'd':
412 case 'e':
413 case 'f':
414 case 'z':
415 case 'q':
416 case 'Q':
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200417 case 'K':
418 case 'U':
Kirill Smelkov6cff0e82010-02-03 16:52:08 -0200419 case 'F':
420 case 's':
421 case 'S':
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200422 return 1;
423 case 'E':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200424 return top->evlist->nr_entries > 1 ? 1 : 0;
Ingo Molnar83a09442009-08-15 12:26:57 +0200425 default:
426 break;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200427 }
428
429 return 0;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200430}
431
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300432static bool perf_top__handle_keypress(struct perf_top *top, int c)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200433{
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300434 bool ret = true;
435
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200436 if (!perf_top__key_mapped(top, c)) {
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200437 struct pollfd stdin_poll = { .fd = 0, .events = POLLIN };
Jiri Olsa3969cc092014-08-15 16:24:45 -0300438 struct termios save;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200439
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200440 perf_top__print_mapped_keys(top);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200441 fprintf(stdout, "\nEnter selection, or unmapped key to continue: ");
442 fflush(stdout);
443
Jiri Olsa3969cc092014-08-15 16:24:45 -0300444 set_term_quiet_input(&save);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200445
446 poll(&stdin_poll, 1, -1);
447 c = getc(stdin);
448
449 tcsetattr(0, TCSAFLUSH, &save);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200450 if (!perf_top__key_mapped(top, c))
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300451 return ret;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200452 }
453
Mike Galbraith923c42c2009-07-22 20:36:03 +0200454 switch (c) {
455 case 'd':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200456 prompt_integer(&top->delay_secs, "Enter display delay");
457 if (top->delay_secs < 1)
458 top->delay_secs = 1;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200459 break;
460 case 'e':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200461 prompt_integer(&top->print_entries, "Enter display entries (lines)");
462 if (top->print_entries == 0) {
463 struct sigaction act = {
464 .sa_sigaction = perf_top__sig_winch,
465 .sa_flags = SA_SIGINFO,
466 };
467 perf_top__sig_winch(SIGWINCH, NULL, top);
468 sigaction(SIGWINCH, &act, NULL);
Stephane Eranian509605d2012-01-30 11:50:37 +0100469 } else {
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -0200470 signal(SIGWINCH, SIG_DFL);
Stephane Eranian509605d2012-01-30 11:50:37 +0100471 }
Mike Galbraith923c42c2009-07-22 20:36:03 +0200472 break;
473 case 'E':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200474 if (top->evlist->nr_entries > 1) {
Akihiro Nagaice2d17c2011-03-23 16:29:39 +0900475 /* Select 0 as the default event: */
476 int counter = 0;
477
Mike Galbraith923c42c2009-07-22 20:36:03 +0200478 fprintf(stderr, "\nAvailable events:");
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200479
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300480 evlist__for_each(top->evlist, top->sym_evsel)
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300481 fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel));
Mike Galbraith923c42c2009-07-22 20:36:03 +0200482
Arnaldo Carvalho de Meloec52d972011-03-11 10:11:48 -0300483 prompt_integer(&counter, "Enter details event counter");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200484
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200485 if (counter >= top->evlist->nr_entries) {
Arnaldo Carvalho de Melo0c21f732012-08-14 16:42:15 -0300486 top->sym_evsel = perf_evlist__first(top->evlist);
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300487 fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel));
Mike Galbraith923c42c2009-07-22 20:36:03 +0200488 sleep(1);
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200489 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200490 }
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300491 evlist__for_each(top->evlist, top->sym_evsel)
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200492 if (top->sym_evsel->idx == counter)
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200493 break;
Arnaldo Carvalho de Meloec52d972011-03-11 10:11:48 -0300494 } else
Arnaldo Carvalho de Melo0c21f732012-08-14 16:42:15 -0300495 top->sym_evsel = perf_evlist__first(top->evlist);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200496 break;
497 case 'f':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200498 prompt_integer(&top->count_filter, "Enter display event count filter");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200499 break;
500 case 'F':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200501 prompt_percent(&top->sym_pcnt_filter,
502 "Enter details display event filter (percent)");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200503 break;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200504 case 'K':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200505 top->hide_kernel_symbols = !top->hide_kernel_symbols;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200506 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200507 case 'q':
508 case 'Q':
509 printf("exiting.\n");
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200510 if (top->dump_symtab)
511 perf_session__fprintf_dsos(top->session, stderr);
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300512 ret = false;
513 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200514 case 's':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200515 perf_top__prompt_symbol(top, "Enter details symbol");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200516 break;
517 case 'S':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200518 if (!top->sym_filter_entry)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200519 break;
520 else {
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200521 struct hist_entry *syme = top->sym_filter_entry;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200522
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200523 top->sym_filter_entry = NULL;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200524 __zero_source_counters(syme);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200525 }
526 break;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200527 case 'U':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200528 top->hide_user_symbols = !top->hide_user_symbols;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200529 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200530 case 'z':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200531 top->zero = !top->zero;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200532 break;
Ingo Molnar83a09442009-08-15 12:26:57 +0200533 default:
534 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200535 }
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300536
537 return ret;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200538}
539
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300540static void perf_top__sort_new_samples(void *arg)
541{
542 struct perf_top *t = arg;
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300543 struct hists *hists;
544
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300545 perf_top__reset_sample_counters(t);
546
547 if (t->evlist->selected != NULL)
548 t->sym_evsel = t->evlist->selected;
549
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300550 hists = evsel__hists(t->sym_evsel);
551
Arnaldo Carvalho de Melo5d484f92015-06-17 16:50:52 -0300552 if (t->evlist->enabled) {
553 if (t->zero) {
554 hists__delete_entries(hists);
555 } else {
556 hists__decay_entries(hists, t->hide_user_symbols,
557 t->hide_kernel_symbols);
558 }
Namhyung Kim701937b2014-08-12 17:16:05 +0900559 }
560
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300561 hists__collapse_resort(hists, NULL);
Namhyung Kim740b97f2014-12-22 13:44:10 +0900562 hists__output_resort(hists, NULL);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300563}
564
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200565static void *display_thread_tui(void *arg)
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -0200566{
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -0200567 struct perf_evsel *pos;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200568 struct perf_top *top = arg;
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300569 const char *help = "For a higher level overview, try: perf top --sort comm,dso";
Namhyung Kim9783adf2012-11-02 14:50:05 +0900570 struct hist_browser_timer hbt = {
571 .timer = perf_top__sort_new_samples,
572 .arg = top,
573 .refresh = top->delay_secs,
574 };
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300575
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200576 perf_top__sort_new_samples(top);
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -0200577
578 /*
579 * Initialize the uid_filter_str, in the future the TUI will allow
580 * Zooming in/out UIDs. For now juse use whatever the user passed
581 * via --uid.
582 */
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300583 evlist__for_each(top->evlist, pos) {
584 struct hists *hists = evsel__hists(pos);
585 hists->uid_filter_str = top->record_opts.target.uid_str;
586 }
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -0200587
Namhyung Kim13d1e532015-06-21 12:41:16 +0900588 perf_evlist__tui_browse_hists(top->evlist, help, &hbt,
589 top->min_percent,
590 &top->session->header.env);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300591
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300592 done = 1;
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -0200593 return NULL;
594}
595
Jiri Olsa4a1a9972014-08-11 10:50:07 +0200596static void display_sig(int sig __maybe_unused)
597{
598 done = 1;
599}
600
601static void display_setup_sig(void)
602{
Arnaldo Carvalho de Melo09f4d782015-08-19 15:16:08 -0300603 signal(SIGSEGV, sighandler_dump_stack);
604 signal(SIGFPE, sighandler_dump_stack);
Jiri Olsa4a1a9972014-08-11 10:50:07 +0200605 signal(SIGINT, display_sig);
606 signal(SIGQUIT, display_sig);
607 signal(SIGTERM, display_sig);
608}
609
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200610static void *display_thread(void *arg)
Ingo Molnar07800602009-04-20 15:00:56 +0200611{
Frederic Weisbecker0f5486b2009-06-04 20:48:04 +0200612 struct pollfd stdin_poll = { .fd = 0, .events = POLLIN };
Jiri Olsa9398c482014-08-11 10:50:02 +0200613 struct termios save;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200614 struct perf_top *top = arg;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200615 int delay_msecs, c;
Frederic Weisbecker0f5486b2009-06-04 20:48:04 +0200616
Jiri Olsa4a1a9972014-08-11 10:50:07 +0200617 display_setup_sig();
Arnaldo Carvalho de Melo3af6e332011-10-13 08:52:46 -0300618 pthread__unblock_sigwinch();
Mike Galbraith923c42c2009-07-22 20:36:03 +0200619repeat:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200620 delay_msecs = top->delay_secs * 1000;
Jiri Olsa9398c482014-08-11 10:50:02 +0200621 set_term_quiet_input(&save);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200622 /* trash return*/
623 getc(stdin);
Ingo Molnar07800602009-04-20 15:00:56 +0200624
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300625 while (!done) {
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200626 perf_top__print_sym_table(top);
Arnaldo Carvalho de Melo3af6e332011-10-13 08:52:46 -0300627 /*
628 * Either timeout expired or we got an EINTR due to SIGWINCH,
629 * refresh screen in both cases.
630 */
631 switch (poll(&stdin_poll, 1, delay_msecs)) {
632 case 0:
633 continue;
634 case -1:
635 if (errno == EINTR)
636 continue;
637 /* Fall trhu */
638 default:
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300639 c = getc(stdin);
640 tcsetattr(0, TCSAFLUSH, &save);
641
642 if (perf_top__handle_keypress(top, c))
643 goto repeat;
644 done = 1;
Arnaldo Carvalho de Melo3af6e332011-10-13 08:52:46 -0300645 }
646 }
Ingo Molnar07800602009-04-20 15:00:56 +0200647
Jiri Olsa4a1a9972014-08-11 10:50:07 +0200648 tcsetattr(0, TCSAFLUSH, &save);
Ingo Molnar07800602009-04-20 15:00:56 +0200649 return NULL;
650}
651
Arnaldo Carvalho de Meloe7110b92014-08-08 18:00:39 -0300652static int symbol_filter(struct map *map, struct symbol *sym)
Ingo Molnar07800602009-04-20 15:00:56 +0200653{
Arnaldo Carvalho de Melode046872009-05-28 14:55:41 -0300654 const char *name = sym->name;
Ingo Molnar07800602009-04-20 15:00:56 +0200655
Arnaldo Carvalho de Melocfc5acd2015-09-23 15:15:54 -0300656 if (!__map__is_kernel(map))
Arnaldo Carvalho de Meloe7110b92014-08-08 18:00:39 -0300657 return 0;
Anton Blanchard3a3393e2009-07-01 09:00:47 +1000658 /*
659 * ppc64 uses function descriptors and appends a '.' to the
660 * start of every instruction address. Remove it.
661 */
662 if (name[0] == '.')
663 name++;
664
Arnaldo Carvalho de Melode046872009-05-28 14:55:41 -0300665 if (!strcmp(name, "_text") ||
666 !strcmp(name, "_etext") ||
667 !strcmp(name, "_sinittext") ||
668 !strncmp("init_module", name, 11) ||
669 !strncmp("cleanup_module", name, 14) ||
670 strstr(name, "_text_start") ||
671 strstr(name, "_text_end"))
Ingo Molnar07800602009-04-20 15:00:56 +0200672 return 1;
673
David Ahern82d1deb2013-11-18 13:32:45 -0700674 if (symbol__is_idle(sym))
675 sym->ignore = true;
Ingo Molnar07800602009-04-20 15:00:56 +0200676
Ingo Molnar07800602009-04-20 15:00:56 +0200677 return 0;
678}
679
Namhyung Kim7c503912014-01-07 17:41:03 +0900680static int hist_iter__top_callback(struct hist_entry_iter *iter,
681 struct addr_location *al, bool single,
682 void *arg)
683{
684 struct perf_top *top = arg;
685 struct hist_entry *he = iter->he;
686 struct perf_evsel *evsel = iter->evsel;
687
Namhyung Kim64226bc2015-12-11 11:56:53 +0900688 if (sort__has_sym && single)
689 perf_top__record_precise_ip(top, he, evsel->idx, al->addr);
Namhyung Kim7c503912014-01-07 17:41:03 +0900690
Andi Kleena18b0272015-07-18 08:24:52 -0700691 hist__account_cycles(iter->sample->branch_stack, al, iter->sample,
692 !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY));
Namhyung Kim7c503912014-01-07 17:41:03 +0900693 return 0;
694}
695
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200696static void perf_event__process_sample(struct perf_tool *tool,
697 const union perf_event *event,
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200698 struct perf_evsel *evsel,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200699 struct perf_sample *sample,
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200700 struct machine *machine)
Ingo Molnar07800602009-04-20 15:00:56 +0200701{
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200702 struct perf_top *top = container_of(tool, struct perf_top, tool);
Arnaldo Carvalho de Melo1ed091c2009-11-27 16:29:23 -0200703 struct addr_location al;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300704 int err;
Ingo Molnar07800602009-04-20 15:00:56 +0200705
Arnaldo Carvalho de Melo23346f22010-04-27 21:17:50 -0300706 if (!machine && perf_guest) {
David Ahern6b118e92012-07-30 22:31:35 -0600707 static struct intlist *seen;
708
709 if (!seen)
Arnaldo Carvalho de Meloffe0fb72013-01-24 16:17:27 -0300710 seen = intlist__new(NULL);
David Ahern6b118e92012-07-30 22:31:35 -0600711
Adrian Hunteref893252013-08-27 11:23:06 +0300712 if (!intlist__has_entry(seen, sample->pid)) {
David Ahern6b118e92012-07-30 22:31:35 -0600713 pr_err("Can't find guest [%d]'s kernel information\n",
Adrian Hunteref893252013-08-27 11:23:06 +0300714 sample->pid);
715 intlist__add(seen, sample->pid);
David Ahern6b118e92012-07-30 22:31:35 -0600716 }
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800717 return;
718 }
719
Joerg Roedel0c095712012-02-10 18:05:04 +0100720 if (!machine) {
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300721 pr_err("%u unprocessable samples recorded.\r",
Arnaldo Carvalho de Melo75be9892015-02-14 14:50:11 -0300722 top->session->evlist->stats.nr_unprocessable_samples++);
Joerg Roedel0c095712012-02-10 18:05:04 +0100723 return;
724 }
725
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200726 if (event->header.misc & PERF_RECORD_MISC_EXACT_IP)
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200727 top->exact_samples++;
Peter Zijlstra1676b8a2010-03-04 14:19:36 +0100728
Namhyung Kim33db4562014-02-07 12:06:07 +0900729 if (perf_event__preprocess_sample(event, machine, &al, sample) < 0)
Arnaldo Carvalho de Melo1ed091c2009-11-27 16:29:23 -0200730 return;
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200731
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200732 if (!top->kptr_restrict_warned &&
Arnaldo Carvalho de Melo5f6f5582011-05-27 11:53:28 -0300733 symbol_conf.kptr_restrict &&
734 al.cpumode == PERF_RECORD_MISC_KERNEL) {
735 ui__warning(
736"Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n"
737"Check /proc/sys/kernel/kptr_restrict.\n\n"
738"Kernel%s samples will not be resolved.\n",
Wang Nanc6718352015-04-25 07:25:03 +0000739 al.map && !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ?
Arnaldo Carvalho de Melo5f6f5582011-05-27 11:53:28 -0300740 " modules" : "");
741 if (use_browser <= 0)
742 sleep(5);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200743 top->kptr_restrict_warned = true;
Arnaldo Carvalho de Melo5f6f5582011-05-27 11:53:28 -0300744 }
745
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200746 if (al.sym == NULL) {
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300747 const char *msg = "Kernel samples will not be resolved.\n";
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200748 /*
749 * As we do lazy loading of symtabs we only will know if the
750 * specified vmlinux file is invalid when we actually have a
751 * hit in kernel space and then try to load it. So if we get
752 * here and there are _no_ symbols in the DSO backing the
753 * kernel map, bail out.
754 *
755 * We may never get here, for instance, if we use -K/
756 * --hide-kernel-symbols, even if the user specifies an
757 * invalid --vmlinux ;-)
758 */
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200759 if (!top->kptr_restrict_warned && !top->vmlinux_warned &&
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300760 al.map == machine->vmlinux_maps[MAP__FUNCTION] &&
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200761 RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) {
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300762 if (symbol_conf.vmlinux_name) {
Arnaldo Carvalho de Melo18425f12015-03-24 11:49:02 -0300763 char serr[256];
764 dso__strerror_load(al.map->dso, serr, sizeof(serr));
765 ui__warning("The %s file can't be used: %s\n%s",
766 symbol_conf.vmlinux_name, serr, msg);
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300767 } else {
768 ui__warning("A vmlinux file was not found.\n%s",
769 msg);
770 }
771
772 if (use_browser <= 0)
773 sleep(5);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200774 top->vmlinux_warned = true;
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200775 }
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200776 }
777
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300778 if (al.sym == NULL || !al.sym->ignore) {
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300779 struct hists *hists = evsel__hists(evsel);
Namhyung Kim7c503912014-01-07 17:41:03 +0900780 struct hist_entry_iter iter = {
Namhyung Kim063bd932015-05-19 17:04:10 +0900781 .evsel = evsel,
782 .sample = sample,
783 .add_entry_cb = hist_iter__top_callback,
Namhyung Kim7c503912014-01-07 17:41:03 +0900784 };
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200785
Namhyung Kim7c503912014-01-07 17:41:03 +0900786 if (symbol_conf.cumulate_callchain)
787 iter.ops = &hist_iter_cumulative;
788 else
789 iter.ops = &hist_iter_normal;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300790
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300791 pthread_mutex_lock(&hists->lock);
Namhyung Kim7c503912014-01-07 17:41:03 +0900792
Namhyung Kim063bd932015-05-19 17:04:10 +0900793 err = hist_entry_iter__add(&iter, &al, top->max_stack, top);
Namhyung Kim7c503912014-01-07 17:41:03 +0900794 if (err < 0)
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300795 pr_err("Problem incrementing symbol period, skipping event\n");
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300796
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300797 pthread_mutex_unlock(&hists->lock);
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200798 }
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300799
Arnaldo Carvalho de Melob91fc392015-04-06 20:43:22 -0300800 addr_location__put(&al);
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200801}
802
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200803static void perf_top__mmap_read_idx(struct perf_top *top, int idx)
Ingo Molnar07800602009-04-20 15:00:56 +0200804{
Arnaldo Carvalho de Melo8d50e5b2011-01-29 13:02:00 -0200805 struct perf_sample sample;
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200806 struct perf_evsel *evsel;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200807 struct perf_session *session = top->session;
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200808 union perf_event *event;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200809 struct machine *machine;
810 u8 origin;
Frederic Weisbecker5538bec2011-05-22 02:17:22 +0200811 int ret;
Ingo Molnar07800602009-04-20 15:00:56 +0200812
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200813 while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) {
Arnaldo Carvalho de Melo0807d2d2012-09-26 12:48:18 -0300814 ret = perf_evlist__parse_sample(top->evlist, event, &sample);
Frederic Weisbecker5538bec2011-05-22 02:17:22 +0200815 if (ret) {
816 pr_err("Can't parse sample, err = %d\n", ret);
Zhouyi Zhou8e50d382013-10-24 15:43:33 +0800817 goto next_event;
Frederic Weisbecker5538bec2011-05-22 02:17:22 +0200818 }
Arnaldo Carvalho de Melo04391de2011-01-15 10:40:59 -0200819
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200820 evsel = perf_evlist__id2evsel(session->evlist, sample.id);
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200821 assert(evsel != NULL);
822
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200823 origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
824
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200825 if (event->header.type == PERF_RECORD_SAMPLE)
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200826 ++top->samples;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200827
828 switch (origin) {
829 case PERF_RECORD_MISC_USER:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200830 ++top->us_samples;
831 if (top->hide_user_symbols)
Zhouyi Zhou8e50d382013-10-24 15:43:33 +0800832 goto next_event;
Arnaldo Carvalho de Melo34ba5122012-12-19 09:04:24 -0300833 machine = &session->machines.host;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200834 break;
835 case PERF_RECORD_MISC_KERNEL:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200836 ++top->kernel_samples;
837 if (top->hide_kernel_symbols)
Zhouyi Zhou8e50d382013-10-24 15:43:33 +0800838 goto next_event;
Arnaldo Carvalho de Melo34ba5122012-12-19 09:04:24 -0300839 machine = &session->machines.host;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200840 break;
841 case PERF_RECORD_MISC_GUEST_KERNEL:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200842 ++top->guest_kernel_samples;
Adrian Hunteref893252013-08-27 11:23:06 +0300843 machine = perf_session__find_machine(session,
844 sample.pid);
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200845 break;
846 case PERF_RECORD_MISC_GUEST_USER:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200847 ++top->guest_us_samples;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200848 /*
849 * TODO: we don't process guest user from host side
850 * except simple counting.
851 */
Zhouyi Zhou8e50d382013-10-24 15:43:33 +0800852 goto next_event;
Namhyung Kim4b37af52015-09-30 10:45:25 +0900853 default:
854 if (event->header.type == PERF_RECORD_SAMPLE)
855 goto next_event;
856 machine = &session->machines.host;
857 break;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200858 }
859
860
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200861 if (event->header.type == PERF_RECORD_SAMPLE) {
862 perf_event__process_sample(&top->tool, event, evsel,
863 &sample, machine);
864 } else if (event->header.type < PERF_RECORD_MAX) {
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300865 hists__inc_nr_events(evsel__hists(evsel), event->header.type);
Frederic Weisbecker162f0be2013-09-11 16:18:24 +0200866 machine__process_event(machine, event, &sample);
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200867 } else
Arnaldo Carvalho de Melo75be9892015-02-14 14:50:11 -0300868 ++session->evlist->stats.nr_unknown_events;
Zhouyi Zhou8e50d382013-10-24 15:43:33 +0800869next_event:
870 perf_evlist__mmap_consume(top->evlist, idx);
Ingo Molnar07800602009-04-20 15:00:56 +0200871 }
Ingo Molnar07800602009-04-20 15:00:56 +0200872}
873
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200874static void perf_top__mmap_read(struct perf_top *top)
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200875{
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200876 int i;
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200877
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200878 for (i = 0; i < top->evlist->nr_mmaps; i++)
879 perf_top__mmap_read_idx(top, i);
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200880}
881
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300882static int perf_top__start_counters(struct perf_top *top)
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200883{
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300884 char msg[512];
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200885 struct perf_evsel *counter;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200886 struct perf_evlist *evlist = top->evlist;
Arnaldo Carvalho de Melob4006792013-12-19 14:43:45 -0300887 struct record_opts *opts = &top->record_opts;
Arnaldo Carvalho de Melo727ab042011-10-25 10:42:19 -0200888
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300889 perf_evlist__config(evlist, opts);
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200890
Arnaldo Carvalho de Melo0050f7a2014-01-10 10:37:27 -0300891 evlist__for_each(evlist, counter) {
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200892try_again:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200893 if (perf_evsel__open(counter, top->evlist->cpus,
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200894 top->evlist->threads) < 0) {
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300895 if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) {
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200896 if (verbose)
Arnaldo Carvalho de Meloc0a54342012-12-13 14:16:30 -0300897 ui__warning("%s\n", msg);
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200898 goto try_again;
899 }
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300900
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300901 perf_evsel__open_strerror(counter, &opts->target,
902 errno, msg, sizeof(msg));
903 ui__error("%s\n", msg);
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300904 goto out_err;
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200905 }
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200906 }
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200907
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300908 if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) {
Namhyung Kim3780f482012-05-29 13:22:57 +0900909 ui__error("Failed to mmap with %d (%s)\n",
Masami Hiramatsu809adea62014-08-14 02:22:38 +0000910 errno, strerror_r(errno, msg, sizeof(msg)));
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300911 goto out_err;
912 }
913
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300914 return 0;
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300915
916out_err:
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300917 return -1;
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200918}
919
Namhyung Kim8f0f6842013-04-05 10:26:37 +0900920static int perf_top__setup_sample_type(struct perf_top *top __maybe_unused)
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300921{
Namhyung Kim8f0f6842013-04-05 10:26:37 +0900922 if (!sort__has_sym) {
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300923 if (symbol_conf.use_callchain) {
Namhyung Kim3780f482012-05-29 13:22:57 +0900924 ui__error("Selected -g but \"sym\" not present in --sort/-s.");
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300925 return -EINVAL;
926 }
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300927 } else if (callchain_param.mode != CHAIN_NONE) {
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300928 if (callchain_register_param(&callchain_param) < 0) {
Namhyung Kim3780f482012-05-29 13:22:57 +0900929 ui__error("Can't register callchain params.\n");
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300930 return -EINVAL;
931 }
932 }
933
934 return 0;
935}
936
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200937static int __cmd_top(struct perf_top *top)
Ingo Molnar716c69f2009-06-07 17:31:52 +0200938{
Arnaldo Carvalho de Melob4006792013-12-19 14:43:45 -0300939 struct record_opts *opts = &top->record_opts;
Ingo Molnar716c69f2009-06-07 17:31:52 +0200940 pthread_t thread;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300941 int ret;
Jiri Olsaf5fc1412013-10-15 16:27:32 +0200942
Jiri Olsa6a4d98d2013-10-15 16:27:33 +0200943 top->session = perf_session__new(NULL, false, NULL);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200944 if (top->session == NULL)
Taeung Song52e028342014-09-24 10:33:37 +0900945 return -1;
Ingo Molnar07800602009-04-20 15:00:56 +0200946
Adrian Hunter36035f72013-08-08 14:32:21 +0300947 machines__set_symbol_filter(&top->session->machines, symbol_filter);
948
Sukadev Bhattiprolu0d3942d2013-05-14 22:56:51 -0700949 if (!objdump_path) {
Arnaldo Carvalho de Meloeebd0bf2015-09-08 15:52:20 -0300950 ret = perf_env__lookup_objdump(&top->session->header.env);
Sukadev Bhattiprolu0d3942d2013-05-14 22:56:51 -0700951 if (ret)
952 goto out_delete;
953 }
954
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200955 ret = perf_top__setup_sample_type(top);
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300956 if (ret)
957 goto out_delete;
958
Masami Hiramatsu9d8b1722015-12-09 11:11:23 +0900959 if (perf_session__register_idle_thread(top->session) < 0)
Namhyung Kimc53d1382015-09-30 10:45:26 +0900960 goto out_delete;
961
Arnaldo Carvalho de Meloa33fbd52013-11-11 11:36:12 -0300962 machine__synthesize_threads(&top->session->machines.host, &opts->target,
Kan Liang9d9cad72015-06-17 09:51:11 -0400963 top->evlist->threads, false, opts->proc_map_timeout);
Kan Liang2e7ea3a2015-09-04 10:45:43 -0400964
965 if (sort__has_socket) {
966 ret = perf_env__read_cpu_topology_map(&perf_env);
967 if (ret < 0)
968 goto out_err_cpu_topo;
969 }
970
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300971 ret = perf_top__start_counters(top);
972 if (ret)
973 goto out_delete;
974
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200975 top->session->evlist = top->evlist;
Arnaldo Carvalho de Melo7b56cce2012-08-01 19:31:00 -0300976 perf_session__set_id_hdr_size(top->session);
Ingo Molnar07800602009-04-20 15:00:56 +0200977
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300978 /*
979 * When perf is starting the traced process, all the events (apart from
980 * group members) have enable_on_exec=1 set, so don't spoil it by
981 * prematurely enabling them.
982 *
983 * XXX 'top' still doesn't start workloads like record, trace, but should,
984 * so leave the check here.
985 */
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -0300986 if (!target__none(&opts->target))
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300987 perf_evlist__enable(top->evlist);
988
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200989 /* Wait for a minimal set of events before starting the snapshot */
Arnaldo Carvalho de Melof66a8892014-08-18 17:25:59 -0300990 perf_evlist__poll(top->evlist, 100);
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200991
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200992 perf_top__mmap_read(top);
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200993
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300994 ret = -1;
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -0200995 if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui :
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200996 display_thread), top)) {
Namhyung Kim3780f482012-05-29 13:22:57 +0900997 ui__error("Could not create display thread.\n");
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300998 goto out_delete;
Ingo Molnar07800602009-04-20 15:00:56 +0200999 }
1000
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001001 if (top->realtime_prio) {
Ingo Molnar07800602009-04-20 15:00:56 +02001002 struct sched_param param;
1003
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001004 param.sched_priority = top->realtime_prio;
Ingo Molnar07800602009-04-20 15:00:56 +02001005 if (sched_setscheduler(0, SCHED_FIFO, &param)) {
Namhyung Kim3780f482012-05-29 13:22:57 +09001006 ui__error("Could not set realtime priority.\n");
Jiri Olsaae256fa2014-08-11 10:50:05 +02001007 goto out_join;
Ingo Molnar07800602009-04-20 15:00:56 +02001008 }
1009 }
1010
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -03001011 while (!done) {
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001012 u64 hits = top->samples;
Ingo Molnar07800602009-04-20 15:00:56 +02001013
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001014 perf_top__mmap_read(top);
Ingo Molnar07800602009-04-20 15:00:56 +02001015
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001016 if (hits == top->samples)
Arnaldo Carvalho de Melof66a8892014-08-18 17:25:59 -03001017 ret = perf_evlist__poll(top->evlist, 100);
Ingo Molnar07800602009-04-20 15:00:56 +02001018 }
1019
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -03001020 ret = 0;
Jiri Olsaae256fa2014-08-11 10:50:05 +02001021out_join:
1022 pthread_join(thread, NULL);
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001023out_delete:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001024 perf_session__delete(top->session);
1025 top->session = NULL;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001026
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -03001027 return ret;
Kan Liang2e7ea3a2015-09-04 10:45:43 -04001028
1029out_err_cpu_topo: {
1030 char errbuf[BUFSIZ];
1031 const char *err = strerror_r(-ret, errbuf, sizeof(errbuf));
1032
1033 ui__error("Could not read the CPU topology map: %s\n", err);
1034 goto out_delete;
1035}
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001036}
1037
1038static int
Jiri Olsaae779a62013-10-26 16:25:34 +02001039callchain_opt(const struct option *opt, const char *arg, int unset)
1040{
1041 symbol_conf.use_callchain = true;
1042 return record_callchain_opt(opt, arg, unset);
1043}
1044
1045static int
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001046parse_callchain_opt(const struct option *opt, const char *arg, int unset)
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001047{
Namhyung Kima2c10d32015-10-22 15:28:49 +09001048 struct record_opts *record = (struct record_opts *)opt->value;
1049
1050 record->callgraph_set = true;
1051 callchain_param.enabled = !unset;
1052 callchain_param.record_mode = CALLCHAIN_FP;
1053
1054 /*
1055 * --no-call-graph
1056 */
1057 if (unset) {
1058 symbol_conf.use_callchain = false;
1059 callchain_param.record_mode = CALLCHAIN_NONE;
1060 return 0;
1061 }
1062
1063 return parse_callchain_top_opt(arg);
Ingo Molnar07800602009-04-20 15:00:56 +02001064}
Ingo Molnarb456bae2009-05-26 09:17:18 +02001065
Jiri Olsaeb853e82014-02-03 12:44:42 +01001066static int perf_top_config(const char *var, const char *value, void *cb)
1067{
Jiri Olsaeb853e82014-02-03 12:44:42 +01001068 if (!strcmp(var, "top.call-graph"))
Namhyung Kim5a2e5e82014-09-23 10:01:44 +09001069 var = "call-graph.record-mode"; /* fall-through */
Namhyung Kim104ac992013-01-22 18:09:46 +09001070 if (!strcmp(var, "top.children")) {
1071 symbol_conf.cumulate_callchain = perf_config_bool(var, value);
1072 return 0;
1073 }
Jiri Olsaeb853e82014-02-03 12:44:42 +01001074
1075 return perf_default_config(var, value, cb);
1076}
1077
Namhyung Kimfa5df942013-05-14 11:09:05 +09001078static int
1079parse_percent_limit(const struct option *opt, const char *arg,
1080 int unset __maybe_unused)
1081{
1082 struct perf_top *top = opt->value;
1083
1084 top->min_percent = strtof(arg, NULL);
1085 return 0;
1086}
1087
Namhyung Kim76a26542015-10-22 23:28:32 +09001088const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP
1089 "\n\t\t\t\tDefault: fp,graph,0.5,caller,function";
Namhyung Kima2c10d32015-10-22 15:28:49 +09001090
Irina Tirdea1d037ca2012-09-11 01:15:03 +03001091int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001092{
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001093 char errbuf[BUFSIZ];
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001094 struct perf_top top = {
1095 .count_filter = 5,
1096 .delay_secs = 2,
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001097 .record_opts = {
1098 .mmap_pages = UINT_MAX,
1099 .user_freq = UINT_MAX,
1100 .user_interval = ULLONG_MAX,
1101 .freq = 4000, /* 4 KHz */
Waiman Long5dbb6e82013-10-18 10:38:49 -04001102 .target = {
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001103 .uses_mmap = true,
1104 },
Kan Liang9d9cad72015-06-17 09:51:11 -04001105 .proc_map_timeout = 500,
Namhyung Kimd1cb9fc2012-05-16 18:45:49 +09001106 },
Waiman Long5dbb6e82013-10-18 10:38:49 -04001107 .max_stack = PERF_MAX_STACK_DEPTH,
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001108 .sym_pcnt_filter = 5,
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001109 };
Arnaldo Carvalho de Melob4006792013-12-19 14:43:45 -03001110 struct record_opts *opts = &top.record_opts;
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001111 struct target *target = &opts->target;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001112 const struct option options[] = {
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001113 OPT_CALLBACK('e', "event", &top.evlist, "event",
Thomas Gleixner86847b62009-06-06 12:24:17 +02001114 "event selector. use 'perf list' to list available events",
Jiri Olsaf120f9d2011-07-14 11:25:32 +02001115 parse_events_option),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001116 OPT_U64('c', "count", &opts->user_interval, "event period to sample"),
1117 OPT_STRING('p', "pid", &target->pid, "pid",
Zhang, Yanmind6d901c2010-03-18 11:36:05 -03001118 "profile events on existing process id"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001119 OPT_STRING('t', "tid", &target->tid, "tid",
Zhang, Yanmind6d901c2010-03-18 11:36:05 -03001120 "profile events on existing thread id"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001121 OPT_BOOLEAN('a', "all-cpus", &target->system_wide,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001122 "system-wide collection from all CPUs"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001123 OPT_STRING('C', "cpu", &target->cpu_list, "cpu",
Stephane Eranianc45c6ea2010-05-28 12:00:01 +02001124 "list of cpus to monitor"),
Arnaldo Carvalho de Melob32d1332009-11-24 12:05:15 -02001125 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1126 "file", "vmlinux pathname"),
Willy Tarreaufc2be692013-09-14 10:32:59 +02001127 OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux,
1128 "don't load vmlinux even if found"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001129 OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols,
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -02001130 "hide kernel symbols"),
Jiri Olsa994a1f72013-09-01 12:36:12 +02001131 OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages",
1132 "number of mmap data pages",
1133 perf_evlist__parse_mmap_pages),
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001134 OPT_INTEGER('r', "realtime", &top.realtime_prio,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001135 "collect data with this RT SCHED_FIFO priority"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001136 OPT_INTEGER('d', "delay", &top.delay_secs,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001137 "number of seconds to delay between refreshes"),
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001138 OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001139 "dump the symbol table used for profiling"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001140 OPT_INTEGER('f', "count-filter", &top.count_filter,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001141 "only display functions with more events than this"),
David Ahernbf806692013-11-14 20:51:30 -07001142 OPT_BOOLEAN(0, "group", &opts->group,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001143 "put the counters into a counter group"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001144 OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit,
1145 "child tasks do not inherit counters"),
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001146 OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name",
Kirill Smelkov6cff0e82010-02-03 16:52:08 -02001147 "symbol to annotate"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001148 OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"),
1149 OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001150 OPT_INTEGER('E', "entries", &top.print_entries,
Ingo Molnar6e53cdf2009-06-04 08:53:05 +02001151 "display this many functions"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001152 OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols,
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -02001153 "hide user symbols"),
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001154 OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"),
1155 OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"),
Ian Munsiec0555642010-04-13 18:37:33 +10001156 OPT_INCR('v', "verbose", &verbose,
Ingo Molnar3da297a2009-06-07 17:39:02 +02001157 "be more verbose (show counter open errors, etc)"),
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03001158 OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
Namhyung Kima2ce0672014-03-04 09:06:42 +09001159 "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..."
1160 " Please refer the man page for the complete list."),
Namhyung Kim6fe8c262014-03-04 11:01:41 +09001161 OPT_STRING(0, "fields", &field_order, "key[,keys...]",
1162 "output field(s): overhead, period, sample plus all of sort keys"),
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03001163 OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
1164 "Show a column with the number of samples"),
David Ahernbf806692013-11-14 20:51:30 -07001165 OPT_CALLBACK_NOOPT('g', NULL, &top.record_opts,
Namhyung Kima2c10d32015-10-22 15:28:49 +09001166 NULL, "enables call-graph recording and display",
Jiri Olsaae779a62013-10-26 16:25:34 +02001167 &callchain_opt),
1168 OPT_CALLBACK(0, "call-graph", &top.record_opts,
Namhyung Kim76a26542015-10-22 23:28:32 +09001169 "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]",
Namhyung Kima2c10d32015-10-22 15:28:49 +09001170 top_callchain_help, &parse_callchain_opt),
Namhyung Kim1432ec32013-10-30 17:05:55 +09001171 OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
1172 "Accumulate callchains of children and show total overhead as well"),
Waiman Long5dbb6e82013-10-18 10:38:49 -04001173 OPT_INTEGER(0, "max-stack", &top.max_stack,
1174 "Set the maximum stack depth when parsing the callchain. "
1175 "Default: " __stringify(PERF_MAX_STACK_DEPTH)),
Greg Priceb21484f2012-12-06 21:48:05 -08001176 OPT_CALLBACK(0, "ignore-callees", NULL, "regex",
1177 "ignore callees of these functions in call graphs",
1178 report_parse_ignore_callees_opt),
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03001179 OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
1180 "Show a column with the sum of periods"),
1181 OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
1182 "only consider symbols in these dsos"),
1183 OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
1184 "only consider symbols in these comms"),
1185 OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
1186 "only consider these symbols"),
Arnaldo Carvalho de Melo64c6f0c2011-10-06 12:48:31 -03001187 OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src,
1188 "Interleave source code with assembly code (default)"),
1189 OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw,
1190 "Display raw encoding of assembly instructions (default)"),
Avi Kivity763122a2014-09-13 07:15:05 +03001191 OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
1192 "Enable kernel symbol demangling"),
Sukadev Bhattiprolu0d3942d2013-05-14 22:56:51 -07001193 OPT_STRING(0, "objdump", &objdump_path, "path",
1194 "objdump binary to use for disassembly and annotations"),
Arnaldo Carvalho de Melo64c6f0c2011-10-06 12:48:31 -03001195 OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
1196 "Specify disassembler style (e.g. -M intel for intel syntax)"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001197 OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"),
Namhyung Kimfa5df942013-05-14 11:09:05 +09001198 OPT_CALLBACK(0, "percent-limit", &top, "percent",
1199 "Don't show entries under that percent", parse_percent_limit),
Namhyung Kim33db4562014-02-07 12:06:07 +09001200 OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
1201 "How to display percentage of filtered entries", parse_filter_percentage),
Namhyung Kimcf590022014-07-31 14:47:39 +09001202 OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
1203 "width[,width...]",
1204 "don't try to adjust column width, use these fixed values"),
Kan Liang9d9cad72015-06-17 09:51:11 -04001205 OPT_UINTEGER(0, "proc-map-timeout", &opts->proc_map_timeout,
1206 "per thread proc mmap processing timeout in ms"),
Andi Kleena18b0272015-07-18 08:24:52 -07001207 OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack,
1208 "branch any", "sample any taken branches",
1209 parse_branch_stack),
1210 OPT_CALLBACK('j', "branch-filter", &opts->branch_stack,
1211 "branch filter mask", "branch stack filter modes",
1212 parse_branch_stack),
Namhyung Kim053a3982015-12-23 02:07:05 +09001213 OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace,
1214 "Show raw trace event output (do not use print fmt or plugins)"),
Ingo Molnarb456bae2009-05-26 09:17:18 +02001215 OPT_END()
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001216 };
Arnaldo Carvalho de Melobe772842012-10-01 15:20:58 -03001217 const char * const top_usage[] = {
1218 "perf top [<options>]",
1219 NULL
1220 };
Arnaldo Carvalho de Meloa635fc52014-10-09 16:16:00 -03001221 int status = hists__init();
1222
1223 if (status < 0)
1224 return status;
Ingo Molnarb456bae2009-05-26 09:17:18 +02001225
Namhyung Kim334fe7a2013-03-11 16:43:12 +09001226 top.evlist = perf_evlist__new();
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001227 if (top.evlist == NULL)
Arnaldo Carvalho de Melo361c99a2011-01-11 20:56:53 -02001228 return -ENOMEM;
1229
Jiri Olsaeb853e82014-02-03 12:44:42 +01001230 perf_config(perf_top_config, &top);
1231
Ingo Molnarb456bae2009-05-26 09:17:18 +02001232 argc = parse_options(argc, argv, options, top_usage, 0);
1233 if (argc)
1234 usage_with_options(top_usage, options);
1235
Namhyung Kim54f8f402015-12-23 02:07:01 +09001236 if (!top.evlist->nr_entries &&
1237 perf_evlist__add_default(top.evlist) < 0) {
1238 pr_err("Not enough memory for event selector list\n");
1239 goto out_delete_evlist;
1240 }
1241
Namhyung Kim512ae1b2014-03-18 11:31:39 +09001242 sort__mode = SORT_MODE__TOP;
Namhyung Kim3a5714f2013-05-14 11:09:01 +09001243 /* display thread wants entries to be collapsed in a different tree */
1244 sort__need_collapse = 1;
1245
Namhyung Kim40184c42015-12-23 02:07:01 +09001246 if (setup_sorting(top.evlist) < 0) {
Namhyung Kim6fe8c262014-03-04 11:01:41 +09001247 if (sort_order)
1248 parse_options_usage(top_usage, options, "s", 1);
1249 if (field_order)
1250 parse_options_usage(sort_order ? NULL : top_usage,
1251 options, "fields", 0);
1252 goto out_delete_evlist;
1253 }
Namhyung Kim22af9692014-04-16 11:04:51 +09001254
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001255 if (top.use_stdio)
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -02001256 use_browser = 0;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001257 else if (top.use_tui)
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -02001258 use_browser = 1;
1259
1260 setup_browser(false);
1261
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001262 status = target__validate(target);
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001263 if (status) {
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001264 target__strerror(target, status, errbuf, BUFSIZ);
Ingo Molnarea432a82013-11-13 00:26:09 +01001265 ui__warning("%s\n", errbuf);
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001266 }
Namhyung Kim4bd0f2d2012-04-26 14:15:18 +09001267
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001268 status = target__parse_uid(target);
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001269 if (status) {
1270 int saved_errno = errno;
1271
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001272 target__strerror(target, status, errbuf, BUFSIZ);
Ingo Molnarea432a82013-11-13 00:26:09 +01001273 ui__error("%s\n", errbuf);
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001274
1275 status = -saved_errno;
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -02001276 goto out_delete_evlist;
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001277 }
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -02001278
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001279 if (target__none(target))
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001280 target->system_wide = true;
Arnaldo Carvalho de Melo10b47d52012-05-07 16:33:56 -03001281
Arnaldo Carvalho de Melof8a5c0b2015-12-10 14:48:45 -03001282 if (perf_evlist__create_maps(top.evlist, target) < 0) {
1283 ui__error("Couldn't create thread/CPU maps: %s\n",
1284 errno == ENOENT ? "No such process" : strerror_r(errno, errbuf, sizeof(errbuf)));
1285 goto out_delete_evlist;
1286 }
Arnaldo Carvalho de Melo7e2ed092011-01-30 11:59:43 -02001287
Arnaldo Carvalho de Melod04b35f2011-11-11 22:17:32 -02001288 symbol_conf.nr_events = top.evlist->nr_entries;
1289
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001290 if (top.delay_secs < 1)
1291 top.delay_secs = 1;
Frederic Weisbecker2f335a02009-06-05 19:31:01 +02001292
Arnaldo Carvalho de Melob4006792013-12-19 14:43:45 -03001293 if (record_opts__config(opts)) {
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001294 status = -EINVAL;
Arnaldo Carvalho de Melo03ad9742014-01-03 15:56:06 -03001295 goto out_delete_evlist;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001296 }
1297
Arnaldo Carvalho de Melo0c21f732012-08-14 16:42:15 -03001298 top.sym_evsel = perf_evlist__first(top.evlist);
Arnaldo Carvalho de Melocc841582011-01-11 15:16:52 -02001299
Namhyung Kim1432ec32013-10-30 17:05:55 +09001300 if (!symbol_conf.use_callchain) {
1301 symbol_conf.cumulate_callchain = false;
1302 perf_hpp__cancel_cumulate();
1303 }
1304
Namhyung Kim792aeaf2015-10-22 16:45:46 +09001305 if (symbol_conf.cumulate_callchain && !callchain_param.order_set)
1306 callchain_param.order = ORDER_CALLER;
1307
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03001308 symbol_conf.priv_size = sizeof(struct annotation);
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001309
1310 symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL);
Namhyung Kim0a7e6d12014-08-12 15:40:45 +09001311 if (symbol__init(NULL) < 0)
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001312 return -1;
1313
Namhyung Kim08e71542013-04-03 21:26:19 +09001314 sort__setup_elide(stdout);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03001315
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001316 get_term_dimensions(&top.winsize);
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001317 if (top.print_entries == 0) {
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001318 struct sigaction act = {
1319 .sa_sigaction = perf_top__sig_winch,
1320 .sa_flags = SA_SIGINFO,
1321 };
1322 perf_top__update_print_entries(&top);
1323 sigaction(SIGWINCH, &act, NULL);
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -02001324 }
1325
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001326 status = __cmd_top(&top);
Arnaldo Carvalho de Melo806fb632011-11-29 08:05:52 -02001327
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -02001328out_delete_evlist:
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001329 perf_evlist__delete(top.evlist);
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001330
1331 return status;
Ingo Molnarb456bae2009-05-26 09:17:18 +02001332}