blob: 865191281591a5a52176f38739d5e38aa7fb3daa [file] [log] [blame]
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 Meloab81f3fd2011-10-05 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"
Taeung Song41840d22016-06-23 17:55:17 +090025#include "util/config.h"
Ingo Molnar8fc03212009-06-04 15:19:47 +020026#include "util/color.h"
Mathieu Poirier5d8bb1e2016-09-16 09:50:03 -060027#include "util/drv_configs.h"
Arnaldo Carvalho de Melo361c99a2011-01-11 20:56:53 -020028#include "util/evlist.h"
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020029#include "util/evsel.h"
Arnaldo Carvalho de Melo5ab8c682017-04-25 15:30:47 -030030#include "util/event.h"
Arnaldo Carvalho de Melob0a7d1a2012-10-06 16:26:02 -030031#include "util/machine.h"
Arnaldo Carvalho de Melob3165f42009-12-13 19:50:28 -020032#include "util/session.h"
33#include "util/symbol.h"
Arnaldo Carvalho de Melo439d4732009-10-02 03:29:58 -030034#include "util/thread.h"
Arnaldo Carvalho de Melofd782602011-01-18 15:15:24 -020035#include "util/thread_map.h"
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -020036#include "util/top.h"
Arnaldo Carvalho de Melo43cbcd82009-07-01 12:28:37 -030037#include <linux/rbtree.h>
Josh Poimboeuf4b6ab942015-12-15 09:39:39 -060038#include <subcmd/parse-options.h>
Ingo Molnarb456bae2009-05-26 09:17:18 +020039#include "util/parse-events.h"
Paul Mackerrasa12b51c2010-03-10 20:36:09 +110040#include "util/cpumap.h"
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020041#include "util/xyarray.h"
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -030042#include "util/sort.h"
Arnaldo Carvalho de Melob0742e92017-04-18 11:08:10 -030043#include "util/term.h"
David Ahern6b118e92012-07-30 22:31:35 -060044#include "util/intlist.h"
Andi Kleena18b027e2015-07-18 08:24:52 -070045#include "util/parse-branch-options.h"
Sukadev Bhattiprolu0d3942d2013-05-14 22:56:51 -070046#include "arch/common.h"
Ingo Molnar07800602009-04-20 15:00:56 +020047
Frederic Weisbecker8f288272009-08-16 22:05:48 +020048#include "util/debug.h"
49
Ingo Molnar07800602009-04-20 15:00:56 +020050#include <assert.h>
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -030051#include <elf.h>
Ingo Molnar07800602009-04-20 15:00:56 +020052#include <fcntl.h>
Ingo Molnar0e9b20b2009-05-26 09:17:18 +020053
Ingo Molnar07800602009-04-20 15:00:56 +020054#include <stdio.h>
Mike Galbraith923c42c2009-07-22 20:36:03 +020055#include <termios.h>
56#include <unistd.h>
Arnaldo Carvalho de Melo9486aa32011-01-22 20:37:02 -020057#include <inttypes.h>
Ingo Molnar0e9b20b2009-05-26 09:17:18 +020058
Ingo Molnar07800602009-04-20 15:00:56 +020059#include <errno.h>
Ingo Molnar07800602009-04-20 15:00:56 +020060#include <time.h>
61#include <sched.h>
Arnaldo Carvalho de Melo9607ad32017-04-19 15:49:18 -030062#include <signal.h>
Ingo Molnar07800602009-04-20 15:00:56 +020063
64#include <sys/syscall.h>
65#include <sys/ioctl.h>
Arnaldo Carvalho de Meloa8fa4962014-09-15 15:54:34 -030066#include <poll.h>
Ingo Molnar07800602009-04-20 15:00:56 +020067#include <sys/prctl.h>
68#include <sys/wait.h>
69#include <sys/uio.h>
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -030070#include <sys/utsname.h>
Ingo Molnar07800602009-04-20 15:00:56 +020071#include <sys/mman.h>
72
Arnaldo Carvalho de Melo531d2412016-03-23 15:16:55 -030073#include <linux/stringify.h>
Arnaldo Carvalho de Melob9c4b0f2016-08-08 15:37:58 -030074#include <linux/time64.h>
Ingo Molnar07800602009-04-20 15:00:56 +020075#include <linux/types.h>
76
Arnaldo Carvalho de Melo3d689ed2017-04-17 16:10:49 -030077#include "sane_ctype.h"
78
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -030079static volatile int done;
80
Namhyung Kim933cbb12013-05-14 11:08:59 +090081#define HEADER_LINE_NR 5
82
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -020083static void perf_top__update_print_entries(struct perf_top *top)
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -020084{
Namhyung Kim933cbb12013-05-14 11:08:59 +090085 top->print_entries = top->winsize.ws_row - HEADER_LINE_NR;
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -020086}
87
Irina Tirdea1d037ca2012-09-11 01:15:03 +030088static void perf_top__sig_winch(int sig __maybe_unused,
89 siginfo_t *info __maybe_unused, void *arg)
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -020090{
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -020091 struct perf_top *top = arg;
92
93 get_term_dimensions(&top->winsize);
94 perf_top__update_print_entries(top);
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -020095}
96
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -020097static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he)
Mike Galbraith923c42c2009-07-22 20:36:03 +020098{
99 struct symbol *sym;
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200100 struct annotation *notes;
Arnaldo Carvalho de Melo439d4732009-10-02 03:29:58 -0300101 struct map *map;
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200102 int err = -1;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200103
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300104 if (!he || !he->ms.sym)
Arnaldo Carvalho de Melob0a9ab62010-03-15 11:46:58 -0300105 return -1;
106
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300107 sym = he->ms.sym;
108 map = he->ms.map;
Arnaldo Carvalho de Melob0a9ab62010-03-15 11:46:58 -0300109
110 /*
111 * We can't annotate with just /proc/kallsyms
112 */
Adrian Hunterbbb7f842013-08-07 14:38:54 +0300113 if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS &&
114 !dso__is_kcore(map->dso)) {
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200115 pr_err("Can't annotate %s: No vmlinux file was found in the "
116 "path\n", sym->name);
117 sleep(1);
Arnaldo Carvalho de Melob0a9ab62010-03-15 11:46:58 -0300118 return -1;
Arnaldo Carvalho de Melob2698762009-11-17 18:38:02 -0200119 }
120
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200121 notes = symbol__annotation(sym);
122 if (notes->src != NULL) {
123 pthread_mutex_lock(&notes->lock);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200124 goto out_assign;
125 }
Mike Galbraith923c42c2009-07-22 20:36:03 +0200126
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200127 pthread_mutex_lock(&notes->lock);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200128
Arnaldo Carvalho de Melod04b35f2011-11-11 22:17:32 -0200129 if (symbol__alloc_hist(sym) < 0) {
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300130 pthread_mutex_unlock(&notes->lock);
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200131 pr_err("Not enough memory for annotating '%s' symbol!\n",
132 sym->name);
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200133 sleep(1);
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300134 return err;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200135 }
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200136
Jiri Olsac34df252017-10-11 17:01:28 +0200137 err = symbol__annotate(sym, map, NULL, 0, NULL, NULL);
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200138 if (err == 0) {
Mike Galbraith923c42c2009-07-22 20:36:03 +0200139out_assign:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200140 top->sym_filter_entry = he;
Arnaldo Carvalho de Meloee51d852016-07-29 16:27:18 -0300141 } else {
142 char msg[BUFSIZ];
143 symbol__strerror_disassemble(sym, map, err, msg, sizeof(msg));
144 pr_err("Couldn't annotate %s: %s\n", sym->name, msg);
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200145 }
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300146
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200147 pthread_mutex_unlock(&notes->lock);
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200148 return err;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200149}
150
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300151static void __zero_source_counters(struct hist_entry *he)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200152{
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300153 struct symbol *sym = he->ms.sym;
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200154 symbol__annotate_zero_histograms(sym);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200155}
156
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -0300157static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip)
158{
159 struct utsname uts;
160 int err = uname(&uts);
161
162 ui__warning("Out of bounds address found:\n\n"
163 "Addr: %" PRIx64 "\n"
164 "DSO: %s %c\n"
165 "Map: %" PRIx64 "-%" PRIx64 "\n"
166 "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n"
167 "Arch: %s\n"
168 "Kernel: %s\n"
169 "Tools: %s\n\n"
170 "Not all samples will be on the annotation output.\n\n"
171 "Please report to linux-kernel@vger.kernel.org\n",
172 ip, map->dso->long_name, dso__symtab_origin(map->dso),
173 map->start, map->end, sym->start, sym->end,
174 sym->binding == STB_GLOBAL ? 'g' :
175 sym->binding == STB_LOCAL ? 'l' : 'w', sym->name,
176 err ? "[unknown]" : uts.machine,
177 err ? "[unknown]" : uts.release, perf_version_string);
178 if (use_browser <= 0)
179 sleep(5);
Arnaldo Carvalho de Melo48000a12014-12-17 17:24:45 -0300180
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -0300181 map->erange_warned = true;
182}
183
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200184static void perf_top__record_precise_ip(struct perf_top *top,
185 struct hist_entry *he,
Taeung Songbab89f62017-07-20 16:28:53 -0300186 struct perf_sample *sample,
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200187 int counter, u64 ip)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200188{
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200189 struct annotation *notes;
Namhyung Kimbeefb8d2015-12-11 11:56:56 +0900190 struct symbol *sym = he->ms.sym;
Namhyung Kim48c65bd2014-02-20 10:32:53 +0900191 int err = 0;
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200192
Namhyung Kimbeefb8d2015-12-11 11:56:56 +0900193 if (sym == NULL || (use_browser == 0 &&
194 (top->sym_filter_entry == NULL ||
195 top->sym_filter_entry->ms.sym != sym)))
Mike Galbraith923c42c2009-07-22 20:36:03 +0200196 return;
197
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200198 notes = symbol__annotation(sym);
199
200 if (pthread_mutex_trylock(&notes->lock))
Mike Galbraith923c42c2009-07-22 20:36:03 +0200201 return;
202
Taeung Songbab89f62017-07-20 16:28:53 -0300203 err = hist_entry__inc_addr_samples(he, sample, counter, ip);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200204
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200205 pthread_mutex_unlock(&notes->lock);
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -0300206
Namhyung Kim151ee832015-12-11 11:56:54 +0900207 if (unlikely(err)) {
208 /*
209 * This function is now called with he->hists->lock held.
210 * Release it before going to sleep.
211 */
212 pthread_mutex_unlock(&he->hists->lock);
Namhyung Kim7c503912014-01-07 17:41:03 +0900213
Namhyung Kim151ee832015-12-11 11:56:54 +0900214 if (err == -ERANGE && !he->ms.map->erange_warned)
215 ui__warn_map_erange(he->ms.map, sym, ip);
216 else if (err == -ENOMEM) {
217 pr_err("Not enough memory for annotating '%s' symbol!\n",
218 sym->name);
219 sleep(1);
220 }
221
222 pthread_mutex_lock(&he->hists->lock);
Arnaldo Carvalho de Melob66d8c02013-12-18 15:37:41 -0300223 }
Mike Galbraith923c42c2009-07-22 20:36:03 +0200224}
225
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200226static void perf_top__show_details(struct perf_top *top)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200227{
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200228 struct hist_entry *he = top->sym_filter_entry;
Jiri Olsaf681d592017-10-11 17:01:42 +0200229 struct perf_evsel *evsel = hists_to_evsel(he->hists);
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200230 struct annotation *notes;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200231 struct symbol *symbol;
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200232 int more;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200233
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300234 if (!he)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200235 return;
236
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300237 symbol = he->ms.sym;
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200238 notes = symbol__annotation(symbol);
239
240 pthread_mutex_lock(&notes->lock);
241
Jiri Olsaf681d592017-10-11 17:01:42 +0200242 symbol__calc_percent(symbol, evsel);
243
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200244 if (notes->src == NULL)
245 goto out_unlock;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200246
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300247 printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200248 printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200249
Namhyung Kimdb8fd072013-03-05 14:53:21 +0900250 more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel,
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200251 0, top->sym_pcnt_filter, top->print_entries, 4);
Arnaldo Carvalho de Melo5d484f92015-06-17 16:50:52 -0300252
253 if (top->evlist->enabled) {
254 if (top->zero)
255 symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx);
256 else
257 symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx);
258 }
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200259 if (more != 0)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200260 printf("%d lines not displayed, maybe increase display entries [e]\n", more);
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200261out_unlock:
262 pthread_mutex_unlock(&notes->lock);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200263}
Ingo Molnar07800602009-04-20 15:00:56 +0200264
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200265static void perf_top__print_sym_table(struct perf_top *top)
Ingo Molnar07800602009-04-20 15:00:56 +0200266{
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200267 char bf[160];
268 int printed = 0;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200269 const int win_width = top->winsize.ws_col - 1;
Jiri Olsa452ce032016-01-18 10:24:00 +0100270 struct perf_evsel *evsel = top->sym_evsel;
271 struct hists *hists = evsel__hists(evsel);
Mike Galbraithd94b9432009-05-25 09:57:56 +0200272
Frederic Weisbecker0f5486b2009-06-04 20:48:04 +0200273 puts(CONSOLE_CLEAR);
Ingo Molnar07800602009-04-20 15:00:56 +0200274
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200275 perf_top__header_snprintf(top, bf, sizeof(bf));
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200276 printf("%s\n", bf);
Ingo Molnar07800602009-04-20 15:00:56 +0200277
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200278 perf_top__reset_sample_counters(top);
Ingo Molnar07800602009-04-20 15:00:56 +0200279
Arnaldo Carvalho de Melo1a105f72009-11-17 15:40:55 -0200280 printf("%-*.*s\n", win_width, win_width, graph_dotted_line);
Ingo Molnar07800602009-04-20 15:00:56 +0200281
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300282 if (hists->stats.nr_lost_warned !=
283 hists->stats.nr_events[PERF_RECORD_LOST]) {
284 hists->stats.nr_lost_warned =
285 hists->stats.nr_events[PERF_RECORD_LOST];
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200286 color_fprintf(stdout, PERF_COLOR_RED,
287 "WARNING: LOST %d chunks, Check IO/CPU overload",
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300288 hists->stats.nr_lost_warned);
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300289 ++printed;
Arnaldo Carvalho de Melo93fc64f2011-01-29 12:08:00 -0200290 }
291
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200292 if (top->sym_filter_entry) {
293 perf_top__show_details(top);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200294 return;
295 }
296
Arnaldo Carvalho de Melo5d484f92015-06-17 16:50:52 -0300297 if (top->evlist->enabled) {
298 if (top->zero) {
299 hists__delete_entries(hists);
300 } else {
301 hists__decay_entries(hists, top->hide_user_symbols,
302 top->hide_kernel_symbols);
303 }
Namhyung Kim701937b2014-08-12 17:16:05 +0900304 }
305
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300306 hists__collapse_resort(hists, NULL);
Jiri Olsa452ce032016-01-18 10:24:00 +0100307 perf_evsel__output_resort(evsel, NULL);
Namhyung Kim701937b2014-08-12 17:16:05 +0900308
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300309 hists__output_recalc_col_len(hists, top->print_entries - printed);
Arnaldo Carvalho de Melo7cc017e2009-11-24 12:05:14 -0200310 putchar('\n');
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300311 hists__fprintf(hists, false, top->print_entries - printed, win_width,
Jiri Olsad05e3aa2016-06-14 20:19:18 +0200312 top->min_percent, stdout, symbol_conf.use_callchain);
Ingo Molnar07800602009-04-20 15:00:56 +0200313}
314
Mike Galbraith923c42c2009-07-22 20:36:03 +0200315static void prompt_integer(int *target, const char *msg)
316{
317 char *buf = malloc(0), *p;
318 size_t dummy = 0;
319 int tmp;
320
321 fprintf(stdout, "\n%s: ", msg);
322 if (getline(&buf, &dummy, stdin) < 0)
323 return;
324
325 p = strchr(buf, '\n');
326 if (p)
327 *p = 0;
328
329 p = buf;
330 while(*p) {
331 if (!isdigit(*p))
332 goto out_free;
333 p++;
334 }
335 tmp = strtoul(buf, NULL, 10);
336 *target = tmp;
337out_free:
338 free(buf);
339}
340
341static void prompt_percent(int *target, const char *msg)
342{
343 int tmp = 0;
344
345 prompt_integer(&tmp, msg);
346 if (tmp >= 0 && tmp <= 100)
347 *target = tmp;
348}
349
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200350static void perf_top__prompt_symbol(struct perf_top *top, const char *msg)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200351{
352 char *buf = malloc(0), *p;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200353 struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL;
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300354 struct hists *hists = evsel__hists(top->sym_evsel);
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300355 struct rb_node *next;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200356 size_t dummy = 0;
357
358 /* zero counters of active symbol */
359 if (syme) {
Mike Galbraith923c42c2009-07-22 20:36:03 +0200360 __zero_source_counters(syme);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200361 top->sym_filter_entry = NULL;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200362 }
363
364 fprintf(stdout, "\n%s: ", msg);
365 if (getline(&buf, &dummy, stdin) < 0)
366 goto out_free;
367
368 p = strchr(buf, '\n');
369 if (p)
370 *p = 0;
371
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300372 next = rb_first(&hists->entries);
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300373 while (next) {
374 n = rb_entry(next, struct hist_entry, rb_node);
375 if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) {
376 found = n;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200377 break;
378 }
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300379 next = rb_next(&n->rb_node);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200380 }
381
382 if (!found) {
Kirill Smelkov66aeb6d2010-01-13 13:22:19 -0200383 fprintf(stderr, "Sorry, %s is not active.\n", buf);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200384 sleep(1);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200385 } else
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200386 perf_top__parse_source(top, found);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200387
388out_free:
389 free(buf);
390}
391
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200392static void perf_top__print_mapped_keys(struct perf_top *top)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200393{
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200394 char *name = NULL;
395
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200396 if (top->sym_filter_entry) {
397 struct symbol *sym = top->sym_filter_entry->ms.sym;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200398 name = sym->name;
399 }
400
401 fprintf(stdout, "\nMapped keys:\n");
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200402 fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs);
403 fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200404
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200405 if (top->evlist->nr_entries > 1)
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300406 fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel));
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200407
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200408 fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200409
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200410 fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter);
Kirill Smelkov6cff0e82010-02-03 16:52:08 -0200411 fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL");
412 fprintf(stdout, "\t[S] stop annotation.\n");
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200413
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200414 fprintf(stdout,
Sihyeon Jang8fce3742017-11-12 10:10:47 +0900415 "\t[K] hide kernel symbols. \t(%s)\n",
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200416 top->hide_kernel_symbols ? "yes" : "no");
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200417 fprintf(stdout,
418 "\t[U] hide user symbols. \t(%s)\n",
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200419 top->hide_user_symbols ? "yes" : "no");
420 fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200421 fprintf(stdout, "\t[qQ] quit.\n");
422}
423
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200424static int perf_top__key_mapped(struct perf_top *top, int c)
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200425{
426 switch (c) {
427 case 'd':
428 case 'e':
429 case 'f':
430 case 'z':
431 case 'q':
432 case 'Q':
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200433 case 'K':
434 case 'U':
Kirill Smelkov6cff0e82010-02-03 16:52:08 -0200435 case 'F':
436 case 's':
437 case 'S':
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200438 return 1;
439 case 'E':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200440 return top->evlist->nr_entries > 1 ? 1 : 0;
Ingo Molnar83a09442009-08-15 12:26:57 +0200441 default:
442 break;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200443 }
444
445 return 0;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200446}
447
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300448static bool perf_top__handle_keypress(struct perf_top *top, int c)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200449{
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300450 bool ret = true;
451
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200452 if (!perf_top__key_mapped(top, c)) {
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200453 struct pollfd stdin_poll = { .fd = 0, .events = POLLIN };
Jiri Olsa3969cc092014-08-15 16:24:45 -0300454 struct termios save;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200455
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200456 perf_top__print_mapped_keys(top);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200457 fprintf(stdout, "\nEnter selection, or unmapped key to continue: ");
458 fflush(stdout);
459
Jiri Olsa3969cc092014-08-15 16:24:45 -0300460 set_term_quiet_input(&save);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200461
462 poll(&stdin_poll, 1, -1);
463 c = getc(stdin);
464
465 tcsetattr(0, TCSAFLUSH, &save);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200466 if (!perf_top__key_mapped(top, c))
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300467 return ret;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200468 }
469
Mike Galbraith923c42c2009-07-22 20:36:03 +0200470 switch (c) {
471 case 'd':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200472 prompt_integer(&top->delay_secs, "Enter display delay");
473 if (top->delay_secs < 1)
474 top->delay_secs = 1;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200475 break;
476 case 'e':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200477 prompt_integer(&top->print_entries, "Enter display entries (lines)");
478 if (top->print_entries == 0) {
479 struct sigaction act = {
480 .sa_sigaction = perf_top__sig_winch,
481 .sa_flags = SA_SIGINFO,
482 };
483 perf_top__sig_winch(SIGWINCH, NULL, top);
484 sigaction(SIGWINCH, &act, NULL);
Stephane Eranian509605d2012-01-30 11:50:37 +0100485 } else {
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -0200486 signal(SIGWINCH, SIG_DFL);
Stephane Eranian509605d2012-01-30 11:50:37 +0100487 }
Mike Galbraith923c42c2009-07-22 20:36:03 +0200488 break;
489 case 'E':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200490 if (top->evlist->nr_entries > 1) {
Akihiro Nagaice2d17c2011-03-23 16:29:39 +0900491 /* Select 0 as the default event: */
492 int counter = 0;
493
Mike Galbraith923c42c2009-07-22 20:36:03 +0200494 fprintf(stderr, "\nAvailable events:");
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200495
Arnaldo Carvalho de Meloe5cadb92016-06-23 11:26:15 -0300496 evlist__for_each_entry(top->evlist, top->sym_evsel)
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300497 fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel));
Mike Galbraith923c42c2009-07-22 20:36:03 +0200498
Arnaldo Carvalho de Meloec52d972011-03-11 10:11:48 -0300499 prompt_integer(&counter, "Enter details event counter");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200500
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200501 if (counter >= top->evlist->nr_entries) {
Arnaldo Carvalho de Melo0c21f732012-08-14 16:42:15 -0300502 top->sym_evsel = perf_evlist__first(top->evlist);
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300503 fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel));
Mike Galbraith923c42c2009-07-22 20:36:03 +0200504 sleep(1);
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200505 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200506 }
Arnaldo Carvalho de Meloe5cadb92016-06-23 11:26:15 -0300507 evlist__for_each_entry(top->evlist, top->sym_evsel)
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200508 if (top->sym_evsel->idx == counter)
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200509 break;
Arnaldo Carvalho de Meloec52d972011-03-11 10:11:48 -0300510 } else
Arnaldo Carvalho de Melo0c21f732012-08-14 16:42:15 -0300511 top->sym_evsel = perf_evlist__first(top->evlist);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200512 break;
513 case 'f':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200514 prompt_integer(&top->count_filter, "Enter display event count filter");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200515 break;
516 case 'F':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200517 prompt_percent(&top->sym_pcnt_filter,
518 "Enter details display event filter (percent)");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200519 break;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200520 case 'K':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200521 top->hide_kernel_symbols = !top->hide_kernel_symbols;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200522 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200523 case 'q':
524 case 'Q':
525 printf("exiting.\n");
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200526 if (top->dump_symtab)
527 perf_session__fprintf_dsos(top->session, stderr);
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300528 ret = false;
529 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200530 case 's':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200531 perf_top__prompt_symbol(top, "Enter details symbol");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200532 break;
533 case 'S':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200534 if (!top->sym_filter_entry)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200535 break;
536 else {
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200537 struct hist_entry *syme = top->sym_filter_entry;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200538
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200539 top->sym_filter_entry = NULL;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200540 __zero_source_counters(syme);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200541 }
542 break;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200543 case 'U':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200544 top->hide_user_symbols = !top->hide_user_symbols;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200545 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200546 case 'z':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200547 top->zero = !top->zero;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200548 break;
Ingo Molnar83a09442009-08-15 12:26:57 +0200549 default:
550 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200551 }
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300552
553 return ret;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200554}
555
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300556static void perf_top__sort_new_samples(void *arg)
557{
558 struct perf_top *t = arg;
Jiri Olsa452ce032016-01-18 10:24:00 +0100559 struct perf_evsel *evsel = t->sym_evsel;
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300560 struct hists *hists;
561
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300562 perf_top__reset_sample_counters(t);
563
564 if (t->evlist->selected != NULL)
565 t->sym_evsel = t->evlist->selected;
566
Jiri Olsa452ce032016-01-18 10:24:00 +0100567 hists = evsel__hists(evsel);
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300568
Arnaldo Carvalho de Melo5d484f92015-06-17 16:50:52 -0300569 if (t->evlist->enabled) {
570 if (t->zero) {
571 hists__delete_entries(hists);
572 } else {
573 hists__decay_entries(hists, t->hide_user_symbols,
574 t->hide_kernel_symbols);
575 }
Namhyung Kim701937b2014-08-12 17:16:05 +0900576 }
577
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300578 hists__collapse_resort(hists, NULL);
Jiri Olsa452ce032016-01-18 10:24:00 +0100579 perf_evsel__output_resort(evsel, NULL);
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300580}
581
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200582static void *display_thread_tui(void *arg)
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -0200583{
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -0200584 struct perf_evsel *pos;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200585 struct perf_top *top = arg;
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300586 const char *help = "For a higher level overview, try: perf top --sort comm,dso";
Namhyung Kim9783adf2012-11-02 14:50:05 +0900587 struct hist_browser_timer hbt = {
588 .timer = perf_top__sort_new_samples,
589 .arg = top,
590 .refresh = top->delay_secs,
591 };
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300592
Krister Johansen868a8322017-07-05 18:48:12 -0700593 /* In order to read symbols from other namespaces perf to needs to call
594 * setns(2). This isn't permitted if the struct_fs has multiple users.
595 * unshare(2) the fs so that we may continue to setns into namespaces
596 * that we're observing.
597 */
598 unshare(CLONE_FS);
599
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200600 perf_top__sort_new_samples(top);
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -0200601
602 /*
603 * Initialize the uid_filter_str, in the future the TUI will allow
604 * Zooming in/out UIDs. For now juse use whatever the user passed
605 * via --uid.
606 */
Arnaldo Carvalho de Meloe5cadb92016-06-23 11:26:15 -0300607 evlist__for_each_entry(top->evlist, pos) {
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300608 struct hists *hists = evsel__hists(pos);
609 hists->uid_filter_str = top->record_opts.target.uid_str;
610 }
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -0200611
Namhyung Kim13d1e532015-06-21 12:41:16 +0900612 perf_evlist__tui_browse_hists(top->evlist, help, &hbt,
613 top->min_percent,
614 &top->session->header.env);
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300615
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300616 done = 1;
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -0200617 return NULL;
618}
619
Jiri Olsa4a1a9972014-08-11 10:50:07 +0200620static void display_sig(int sig __maybe_unused)
621{
622 done = 1;
623}
624
625static void display_setup_sig(void)
626{
Arnaldo Carvalho de Melo09f4d782015-08-19 15:16:08 -0300627 signal(SIGSEGV, sighandler_dump_stack);
628 signal(SIGFPE, sighandler_dump_stack);
Jiri Olsa4a1a9972014-08-11 10:50:07 +0200629 signal(SIGINT, display_sig);
630 signal(SIGQUIT, display_sig);
631 signal(SIGTERM, display_sig);
632}
633
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200634static void *display_thread(void *arg)
Ingo Molnar07800602009-04-20 15:00:56 +0200635{
Frederic Weisbecker0f5486b2009-06-04 20:48:04 +0200636 struct pollfd stdin_poll = { .fd = 0, .events = POLLIN };
Jiri Olsa9398c482014-08-11 10:50:02 +0200637 struct termios save;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200638 struct perf_top *top = arg;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200639 int delay_msecs, c;
Frederic Weisbecker0f5486b2009-06-04 20:48:04 +0200640
Krister Johansen868a8322017-07-05 18:48:12 -0700641 /* In order to read symbols from other namespaces perf to needs to call
642 * setns(2). This isn't permitted if the struct_fs has multiple users.
643 * unshare(2) the fs so that we may continue to setns into namespaces
644 * that we're observing.
645 */
646 unshare(CLONE_FS);
647
Jiri Olsa4a1a9972014-08-11 10:50:07 +0200648 display_setup_sig();
Arnaldo Carvalho de Melo3af6e332011-10-13 08:52:46 -0300649 pthread__unblock_sigwinch();
Mike Galbraith923c42c2009-07-22 20:36:03 +0200650repeat:
Arnaldo Carvalho de Melob9c4b0f2016-08-08 15:37:58 -0300651 delay_msecs = top->delay_secs * MSEC_PER_SEC;
Jiri Olsa9398c482014-08-11 10:50:02 +0200652 set_term_quiet_input(&save);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200653 /* trash return*/
654 getc(stdin);
Ingo Molnar07800602009-04-20 15:00:56 +0200655
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300656 while (!done) {
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200657 perf_top__print_sym_table(top);
Arnaldo Carvalho de Melo3af6e332011-10-13 08:52:46 -0300658 /*
659 * Either timeout expired or we got an EINTR due to SIGWINCH,
660 * refresh screen in both cases.
661 */
662 switch (poll(&stdin_poll, 1, delay_msecs)) {
663 case 0:
664 continue;
665 case -1:
666 if (errno == EINTR)
667 continue;
Arnaldo Carvalho de Melo7b0214b2017-02-08 17:01:46 -0300668 __fallthrough;
Arnaldo Carvalho de Melo3af6e332011-10-13 08:52:46 -0300669 default:
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300670 c = getc(stdin);
671 tcsetattr(0, TCSAFLUSH, &save);
672
673 if (perf_top__handle_keypress(top, c))
674 goto repeat;
675 done = 1;
Arnaldo Carvalho de Melo3af6e332011-10-13 08:52:46 -0300676 }
677 }
Ingo Molnar07800602009-04-20 15:00:56 +0200678
Jiri Olsa4a1a9972014-08-11 10:50:07 +0200679 tcsetattr(0, TCSAFLUSH, &save);
Ingo Molnar07800602009-04-20 15:00:56 +0200680 return NULL;
681}
682
Namhyung Kim7c503912014-01-07 17:41:03 +0900683static int hist_iter__top_callback(struct hist_entry_iter *iter,
684 struct addr_location *al, bool single,
685 void *arg)
686{
687 struct perf_top *top = arg;
688 struct hist_entry *he = iter->he;
689 struct perf_evsel *evsel = iter->evsel;
690
Jiri Olsa2e0453a2016-05-03 13:54:44 +0200691 if (perf_hpp_list.sym && single)
Taeung Songbab89f62017-07-20 16:28:53 -0300692 perf_top__record_precise_ip(top, he, iter->sample, evsel->idx, al->addr);
Namhyung Kim7c503912014-01-07 17:41:03 +0900693
Andi Kleena18b027e2015-07-18 08:24:52 -0700694 hist__account_cycles(iter->sample->branch_stack, al, iter->sample,
695 !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY));
Namhyung Kim7c503912014-01-07 17:41:03 +0900696 return 0;
697}
698
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200699static void perf_event__process_sample(struct perf_tool *tool,
700 const union perf_event *event,
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200701 struct perf_evsel *evsel,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200702 struct perf_sample *sample,
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200703 struct machine *machine)
Ingo Molnar07800602009-04-20 15:00:56 +0200704{
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200705 struct perf_top *top = container_of(tool, struct perf_top, tool);
Arnaldo Carvalho de Melo1ed091c2009-11-27 16:29:23 -0200706 struct addr_location al;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300707 int err;
Ingo Molnar07800602009-04-20 15:00:56 +0200708
Arnaldo Carvalho de Melo23346f22010-04-27 21:17:50 -0300709 if (!machine && perf_guest) {
David Ahern6b118e92012-07-30 22:31:35 -0600710 static struct intlist *seen;
711
712 if (!seen)
Arnaldo Carvalho de Meloffe0fb72013-01-24 16:17:27 -0300713 seen = intlist__new(NULL);
David Ahern6b118e92012-07-30 22:31:35 -0600714
Adrian Hunteref893252013-08-27 11:23:06 +0300715 if (!intlist__has_entry(seen, sample->pid)) {
David Ahern6b118e92012-07-30 22:31:35 -0600716 pr_err("Can't find guest [%d]'s kernel information\n",
Adrian Hunteref893252013-08-27 11:23:06 +0300717 sample->pid);
718 intlist__add(seen, sample->pid);
David Ahern6b118e92012-07-30 22:31:35 -0600719 }
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800720 return;
721 }
722
Joerg Roedel0c095712012-02-10 18:05:04 +0100723 if (!machine) {
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300724 pr_err("%u unprocessable samples recorded.\r",
Arnaldo Carvalho de Melo75be9892015-02-14 14:50:11 -0300725 top->session->evlist->stats.nr_unprocessable_samples++);
Joerg Roedel0c095712012-02-10 18:05:04 +0100726 return;
727 }
728
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200729 if (event->header.misc & PERF_RECORD_MISC_EXACT_IP)
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200730 top->exact_samples++;
Peter Zijlstra1676b8a2010-03-04 14:19:36 +0100731
Arnaldo Carvalho de Melobb3eb562016-03-22 18:39:09 -0300732 if (machine__resolve(machine, &al, sample) < 0)
Arnaldo Carvalho de Melo1ed091c2009-11-27 16:29:23 -0200733 return;
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200734
Arnaldo Carvalho de Meloe77a0742016-05-17 11:58:52 -0300735 if (!machine->kptr_restrict_warned &&
Arnaldo Carvalho de Melo5f6f5582011-05-27 11:53:28 -0300736 symbol_conf.kptr_restrict &&
737 al.cpumode == PERF_RECORD_MISC_KERNEL) {
Arnaldo Carvalho de Melob89a5122017-11-14 13:30:19 -0300738 if (!perf_evlist__exclude_kernel(top->session->evlist)) {
739 ui__warning(
Arnaldo Carvalho de Melo5f6f5582011-05-27 11:53:28 -0300740"Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n"
741"Check /proc/sys/kernel/kptr_restrict.\n\n"
742"Kernel%s samples will not be resolved.\n",
Wang Nanc6718352015-04-25 07:25:03 +0000743 al.map && !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ?
Arnaldo Carvalho de Melo5f6f5582011-05-27 11:53:28 -0300744 " modules" : "");
Arnaldo Carvalho de Melob89a5122017-11-14 13:30:19 -0300745 if (use_browser <= 0)
746 sleep(5);
747 }
Arnaldo Carvalho de Meloe77a0742016-05-17 11:58:52 -0300748 machine->kptr_restrict_warned = true;
Arnaldo Carvalho de Melo5f6f5582011-05-27 11:53:28 -0300749 }
750
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200751 if (al.sym == NULL) {
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300752 const char *msg = "Kernel samples will not be resolved.\n";
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200753 /*
754 * As we do lazy loading of symtabs we only will know if the
755 * specified vmlinux file is invalid when we actually have a
756 * hit in kernel space and then try to load it. So if we get
757 * here and there are _no_ symbols in the DSO backing the
758 * kernel map, bail out.
759 *
760 * We may never get here, for instance, if we use -K/
761 * --hide-kernel-symbols, even if the user specifies an
762 * invalid --vmlinux ;-)
763 */
Arnaldo Carvalho de Meloe77a0742016-05-17 11:58:52 -0300764 if (!machine->kptr_restrict_warned && !top->vmlinux_warned &&
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300765 al.map == machine->vmlinux_maps[MAP__FUNCTION] &&
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200766 RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) {
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300767 if (symbol_conf.vmlinux_name) {
Arnaldo Carvalho de Melo18425f12015-03-24 11:49:02 -0300768 char serr[256];
769 dso__strerror_load(al.map->dso, serr, sizeof(serr));
770 ui__warning("The %s file can't be used: %s\n%s",
771 symbol_conf.vmlinux_name, serr, msg);
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300772 } else {
773 ui__warning("A vmlinux file was not found.\n%s",
774 msg);
775 }
776
777 if (use_browser <= 0)
778 sleep(5);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200779 top->vmlinux_warned = true;
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200780 }
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200781 }
782
Arnaldo Carvalho de Melob55cc4e2016-08-30 11:15:59 -0300783 if (al.sym == NULL || !al.sym->idle) {
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300784 struct hists *hists = evsel__hists(evsel);
Namhyung Kim7c503912014-01-07 17:41:03 +0900785 struct hist_entry_iter iter = {
Namhyung Kim063bd932015-05-19 17:04:10 +0900786 .evsel = evsel,
787 .sample = sample,
788 .add_entry_cb = hist_iter__top_callback,
Namhyung Kim7c503912014-01-07 17:41:03 +0900789 };
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200790
Namhyung Kim7c503912014-01-07 17:41:03 +0900791 if (symbol_conf.cumulate_callchain)
792 iter.ops = &hist_iter_cumulative;
793 else
794 iter.ops = &hist_iter_normal;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300795
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300796 pthread_mutex_lock(&hists->lock);
Namhyung Kim7c503912014-01-07 17:41:03 +0900797
Namhyung Kim063bd932015-05-19 17:04:10 +0900798 err = hist_entry_iter__add(&iter, &al, top->max_stack, top);
Namhyung Kim7c503912014-01-07 17:41:03 +0900799 if (err < 0)
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300800 pr_err("Problem incrementing symbol period, skipping event\n");
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300801
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300802 pthread_mutex_unlock(&hists->lock);
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200803 }
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -0300804
Arnaldo Carvalho de Melob91fc392015-04-06 20:43:22 -0300805 addr_location__put(&al);
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200806}
807
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200808static void perf_top__mmap_read_idx(struct perf_top *top, int idx)
Ingo Molnar07800602009-04-20 15:00:56 +0200809{
Arnaldo Carvalho de Melo8d50e5b2011-01-29 13:02:00 -0200810 struct perf_sample sample;
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200811 struct perf_evsel *evsel;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200812 struct perf_session *session = top->session;
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200813 union perf_event *event;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200814 struct machine *machine;
Frederic Weisbecker5538bec2011-05-22 02:17:22 +0200815 int ret;
Ingo Molnar07800602009-04-20 15:00:56 +0200816
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200817 while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) {
Arnaldo Carvalho de Melo0807d2d2012-09-26 12:48:18 -0300818 ret = perf_evlist__parse_sample(top->evlist, event, &sample);
Frederic Weisbecker5538bec2011-05-22 02:17:22 +0200819 if (ret) {
820 pr_err("Can't parse sample, err = %d\n", ret);
Zhouyi Zhou8e50d382013-10-24 15:43:33 +0800821 goto next_event;
Frederic Weisbecker5538bec2011-05-22 02:17:22 +0200822 }
Arnaldo Carvalho de Melo04391de2011-01-15 10:40:59 -0200823
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200824 evsel = perf_evlist__id2evsel(session->evlist, sample.id);
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200825 assert(evsel != NULL);
826
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200827 if (event->header.type == PERF_RECORD_SAMPLE)
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200828 ++top->samples;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200829
Arnaldo Carvalho de Melo473398a2016-03-22 18:23:43 -0300830 switch (sample.cpumode) {
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200831 case PERF_RECORD_MISC_USER:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200832 ++top->us_samples;
833 if (top->hide_user_symbols)
Zhouyi Zhou8e50d382013-10-24 15:43:33 +0800834 goto next_event;
Arnaldo Carvalho de Melo34ba5122012-12-19 09:04:24 -0300835 machine = &session->machines.host;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200836 break;
837 case PERF_RECORD_MISC_KERNEL:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200838 ++top->kernel_samples;
839 if (top->hide_kernel_symbols)
Zhouyi Zhou8e50d382013-10-24 15:43:33 +0800840 goto next_event;
Arnaldo Carvalho de Melo34ba5122012-12-19 09:04:24 -0300841 machine = &session->machines.host;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200842 break;
843 case PERF_RECORD_MISC_GUEST_KERNEL:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200844 ++top->guest_kernel_samples;
Adrian Hunteref893252013-08-27 11:23:06 +0300845 machine = perf_session__find_machine(session,
846 sample.pid);
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200847 break;
848 case PERF_RECORD_MISC_GUEST_USER:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200849 ++top->guest_us_samples;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200850 /*
851 * TODO: we don't process guest user from host side
852 * except simple counting.
853 */
Zhouyi Zhou8e50d382013-10-24 15:43:33 +0800854 goto next_event;
Namhyung Kim4b37af52015-09-30 10:45:25 +0900855 default:
856 if (event->header.type == PERF_RECORD_SAMPLE)
857 goto next_event;
858 machine = &session->machines.host;
859 break;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200860 }
861
862
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200863 if (event->header.type == PERF_RECORD_SAMPLE) {
864 perf_event__process_sample(&top->tool, event, evsel,
865 &sample, machine);
866 } else if (event->header.type < PERF_RECORD_MAX) {
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300867 hists__inc_nr_events(evsel__hists(evsel), event->header.type);
Frederic Weisbecker162f0be2013-09-11 16:18:24 +0200868 machine__process_event(machine, event, &sample);
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200869 } else
Arnaldo Carvalho de Melo75be9892015-02-14 14:50:11 -0300870 ++session->evlist->stats.nr_unknown_events;
Zhouyi Zhou8e50d382013-10-24 15:43:33 +0800871next_event:
872 perf_evlist__mmap_consume(top->evlist, idx);
Ingo Molnar07800602009-04-20 15:00:56 +0200873 }
Ingo Molnar07800602009-04-20 15:00:56 +0200874}
875
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200876static void perf_top__mmap_read(struct perf_top *top)
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200877{
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200878 int i;
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200879
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200880 for (i = 0; i < top->evlist->nr_mmaps; i++)
881 perf_top__mmap_read_idx(top, i);
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200882}
883
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300884static int perf_top__start_counters(struct perf_top *top)
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200885{
Arnaldo Carvalho de Melod6195a62017-02-13 16:45:24 -0300886 char msg[BUFSIZ];
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200887 struct perf_evsel *counter;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200888 struct perf_evlist *evlist = top->evlist;
Arnaldo Carvalho de Melob4006792013-12-19 14:43:45 -0300889 struct record_opts *opts = &top->record_opts;
Arnaldo Carvalho de Melo727ab042011-10-25 10:42:19 -0200890
Arnaldo Carvalho de Meloe68ae9c2016-04-11 18:15:29 -0300891 perf_evlist__config(evlist, opts, &callchain_param);
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200892
Arnaldo Carvalho de Meloe5cadb92016-06-23 11:26:15 -0300893 evlist__for_each_entry(evlist, counter) {
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200894try_again:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200895 if (perf_evsel__open(counter, top->evlist->cpus,
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200896 top->evlist->threads) < 0) {
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300897 if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) {
Namhyung Kimbb963e12017-02-17 17:17:38 +0900898 if (verbose > 0)
Arnaldo Carvalho de Meloc0a54342012-12-13 14:16:30 -0300899 ui__warning("%s\n", msg);
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200900 goto try_again;
901 }
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300902
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300903 perf_evsel__open_strerror(counter, &opts->target,
904 errno, msg, sizeof(msg));
905 ui__error("%s\n", msg);
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300906 goto out_err;
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200907 }
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200908 }
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200909
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300910 if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) {
Namhyung Kim3780f482012-05-29 13:22:57 +0900911 ui__error("Failed to mmap with %d (%s)\n",
Arnaldo Carvalho de Meloc8b5f2c2016-07-06 11:56:20 -0300912 errno, str_error_r(errno, msg, sizeof(msg)));
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300913 goto out_err;
914 }
915
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300916 return 0;
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300917
918out_err:
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300919 return -1;
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200920}
921
Arnaldo Carvalho de Meloe3815262016-04-18 12:30:16 -0300922static int callchain_param__setup_sample_type(struct callchain_param *callchain)
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300923{
Jiri Olsa2e0453a2016-05-03 13:54:44 +0200924 if (!perf_hpp_list.sym) {
Arnaldo Carvalho de Meloe3815262016-04-18 12:30:16 -0300925 if (callchain->enabled) {
Namhyung Kim3780f482012-05-29 13:22:57 +0900926 ui__error("Selected -g but \"sym\" not present in --sort/-s.");
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300927 return -EINVAL;
928 }
Arnaldo Carvalho de Meloe3815262016-04-18 12:30:16 -0300929 } else if (callchain->mode != CHAIN_NONE) {
930 if (callchain_register_param(callchain) < 0) {
Namhyung Kim3780f482012-05-29 13:22:57 +0900931 ui__error("Can't register callchain params.\n");
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300932 return -EINVAL;
933 }
934 }
935
936 return 0;
937}
938
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200939static int __cmd_top(struct perf_top *top)
Ingo Molnar716c69f2009-06-07 17:31:52 +0200940{
Mathieu Poirier5d8bb1e2016-09-16 09:50:03 -0600941 char msg[512];
942 struct perf_evsel *pos;
943 struct perf_evsel_config_term *err_term;
944 struct perf_evlist *evlist = top->evlist;
Arnaldo Carvalho de Melob4006792013-12-19 14:43:45 -0300945 struct record_opts *opts = &top->record_opts;
Ingo Molnar716c69f2009-06-07 17:31:52 +0200946 pthread_t thread;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300947 int ret;
Jiri Olsaf5fc14122013-10-15 16:27:32 +0200948
Jiri Olsa6a4d98d2013-10-15 16:27:33 +0200949 top->session = perf_session__new(NULL, false, NULL);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200950 if (top->session == NULL)
Taeung Song52e028342014-09-24 10:33:37 +0900951 return -1;
Ingo Molnar07800602009-04-20 15:00:56 +0200952
Sukadev Bhattiprolu0d3942d2013-05-14 22:56:51 -0700953 if (!objdump_path) {
Arnaldo Carvalho de Meloeebd0bf2015-09-08 15:52:20 -0300954 ret = perf_env__lookup_objdump(&top->session->header.env);
Sukadev Bhattiprolu0d3942d2013-05-14 22:56:51 -0700955 if (ret)
956 goto out_delete;
957 }
958
Arnaldo Carvalho de Meloe3815262016-04-18 12:30:16 -0300959 ret = callchain_param__setup_sample_type(&callchain_param);
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300960 if (ret)
961 goto out_delete;
962
Masami Hiramatsu9d8b1722015-12-09 11:11:23 +0900963 if (perf_session__register_idle_thread(top->session) < 0)
Namhyung Kimc53d1382015-09-30 10:45:26 +0900964 goto out_delete;
965
Kan Liang0c6b4992017-09-29 07:47:55 -0700966 if (top->nr_threads_synthesize > 1)
967 perf_set_multithreaded();
Kan Liang340b47f2017-09-29 07:47:54 -0700968
Arnaldo Carvalho de Meloa33fbd52013-11-11 11:36:12 -0300969 machine__synthesize_threads(&top->session->machines.host, &opts->target,
Kan Liang340b47f2017-09-29 07:47:54 -0700970 top->evlist->threads, false,
971 opts->proc_map_timeout,
Kan Liang0c6b4992017-09-29 07:47:55 -0700972 top->nr_threads_synthesize);
Kan Liang340b47f2017-09-29 07:47:54 -0700973
Kan Liang0c6b4992017-09-29 07:47:55 -0700974 if (top->nr_threads_synthesize > 1)
975 perf_set_singlethreaded();
Kan Liang2e7ea3a2015-09-04 10:45:43 -0400976
Jiri Olsa35a634f2016-05-03 13:54:46 +0200977 if (perf_hpp_list.socket) {
Kan Liang2e7ea3a2015-09-04 10:45:43 -0400978 ret = perf_env__read_cpu_topology_map(&perf_env);
979 if (ret < 0)
980 goto out_err_cpu_topo;
981 }
982
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300983 ret = perf_top__start_counters(top);
984 if (ret)
985 goto out_delete;
986
Mathieu Poirier5d8bb1e2016-09-16 09:50:03 -0600987 ret = perf_evlist__apply_drv_configs(evlist, &pos, &err_term);
988 if (ret) {
Arnaldo Carvalho de Melo62d94b02017-06-27 11:22:31 -0300989 pr_err("failed to set config \"%s\" on event %s with %d (%s)\n",
Mathieu Poirier5d8bb1e2016-09-16 09:50:03 -0600990 err_term->val.drv_cfg, perf_evsel__name(pos), errno,
991 str_error_r(errno, msg, sizeof(msg)));
992 goto out_delete;
993 }
994
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200995 top->session->evlist = top->evlist;
Arnaldo Carvalho de Melo7b56cce2012-08-01 19:31:00 -0300996 perf_session__set_id_hdr_size(top->session);
Ingo Molnar07800602009-04-20 15:00:56 +0200997
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300998 /*
999 * When perf is starting the traced process, all the events (apart from
1000 * group members) have enable_on_exec=1 set, so don't spoil it by
1001 * prematurely enabling them.
1002 *
1003 * XXX 'top' still doesn't start workloads like record, trace, but should,
1004 * so leave the check here.
1005 */
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001006 if (!target__none(&opts->target))
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001007 perf_evlist__enable(top->evlist);
1008
Frederic Weisbecker2f011902009-06-06 23:10:43 +02001009 /* Wait for a minimal set of events before starting the snapshot */
Arnaldo Carvalho de Melof66a8892014-08-18 17:25:59 -03001010 perf_evlist__poll(top->evlist, 100);
Frederic Weisbecker2f011902009-06-06 23:10:43 +02001011
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001012 perf_top__mmap_read(top);
Frederic Weisbecker2f011902009-06-06 23:10:43 +02001013
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -03001014 ret = -1;
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -02001015 if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui :
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001016 display_thread), top)) {
Namhyung Kim3780f482012-05-29 13:22:57 +09001017 ui__error("Could not create display thread.\n");
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -03001018 goto out_delete;
Ingo Molnar07800602009-04-20 15:00:56 +02001019 }
1020
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001021 if (top->realtime_prio) {
Ingo Molnar07800602009-04-20 15:00:56 +02001022 struct sched_param param;
1023
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001024 param.sched_priority = top->realtime_prio;
Ingo Molnar07800602009-04-20 15:00:56 +02001025 if (sched_setscheduler(0, SCHED_FIFO, &param)) {
Namhyung Kim3780f482012-05-29 13:22:57 +09001026 ui__error("Could not set realtime priority.\n");
Jiri Olsaae256fa2014-08-11 10:50:05 +02001027 goto out_join;
Ingo Molnar07800602009-04-20 15:00:56 +02001028 }
1029 }
1030
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -03001031 while (!done) {
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001032 u64 hits = top->samples;
Ingo Molnar07800602009-04-20 15:00:56 +02001033
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001034 perf_top__mmap_read(top);
Ingo Molnar07800602009-04-20 15:00:56 +02001035
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001036 if (hits == top->samples)
Arnaldo Carvalho de Melof66a8892014-08-18 17:25:59 -03001037 ret = perf_evlist__poll(top->evlist, 100);
Ingo Molnar07800602009-04-20 15:00:56 +02001038 }
1039
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -03001040 ret = 0;
Jiri Olsaae256fa2014-08-11 10:50:05 +02001041out_join:
1042 pthread_join(thread, NULL);
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001043out_delete:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001044 perf_session__delete(top->session);
1045 top->session = NULL;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001046
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -03001047 return ret;
Kan Liang2e7ea3a2015-09-04 10:45:43 -04001048
1049out_err_cpu_topo: {
1050 char errbuf[BUFSIZ];
Arnaldo Carvalho de Meloc8b5f2c2016-07-06 11:56:20 -03001051 const char *err = str_error_r(-ret, errbuf, sizeof(errbuf));
Kan Liang2e7ea3a2015-09-04 10:45:43 -04001052
1053 ui__error("Could not read the CPU topology map: %s\n", err);
1054 goto out_delete;
1055}
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001056}
1057
1058static int
Jiri Olsaae779a62013-10-26 16:25:34 +02001059callchain_opt(const struct option *opt, const char *arg, int unset)
1060{
1061 symbol_conf.use_callchain = true;
1062 return record_callchain_opt(opt, arg, unset);
1063}
1064
1065static int
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001066parse_callchain_opt(const struct option *opt, const char *arg, int unset)
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001067{
Arnaldo Carvalho de Melo2ddd5c02016-04-18 12:09:08 -03001068 struct callchain_param *callchain = opt->value;
Namhyung Kima2c10d32015-10-22 15:28:49 +09001069
Arnaldo Carvalho de Melo2ddd5c02016-04-18 12:09:08 -03001070 callchain->enabled = !unset;
1071 callchain->record_mode = CALLCHAIN_FP;
Namhyung Kima2c10d32015-10-22 15:28:49 +09001072
1073 /*
1074 * --no-call-graph
1075 */
1076 if (unset) {
1077 symbol_conf.use_callchain = false;
Arnaldo Carvalho de Melo2ddd5c02016-04-18 12:09:08 -03001078 callchain->record_mode = CALLCHAIN_NONE;
Namhyung Kima2c10d32015-10-22 15:28:49 +09001079 return 0;
1080 }
1081
1082 return parse_callchain_top_opt(arg);
Ingo Molnar07800602009-04-20 15:00:56 +02001083}
Ingo Molnarb456bae2009-05-26 09:17:18 +02001084
Wang Nanb8cbb342016-02-26 09:31:51 +00001085static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused)
Jiri Olsaeb853e82014-02-03 12:44:42 +01001086{
Jiri Olsaeb853e82014-02-03 12:44:42 +01001087 if (!strcmp(var, "top.call-graph"))
Namhyung Kim5a2e5e82014-09-23 10:01:44 +09001088 var = "call-graph.record-mode"; /* fall-through */
Namhyung Kim104ac992013-01-22 18:09:46 +09001089 if (!strcmp(var, "top.children")) {
1090 symbol_conf.cumulate_callchain = perf_config_bool(var, value);
1091 return 0;
1092 }
Jiri Olsaeb853e82014-02-03 12:44:42 +01001093
Wang Nanb8cbb342016-02-26 09:31:51 +00001094 return 0;
Jiri Olsaeb853e82014-02-03 12:44:42 +01001095}
1096
Namhyung Kimfa5df942013-05-14 11:09:05 +09001097static int
1098parse_percent_limit(const struct option *opt, const char *arg,
1099 int unset __maybe_unused)
1100{
1101 struct perf_top *top = opt->value;
1102
1103 top->min_percent = strtof(arg, NULL);
1104 return 0;
1105}
1106
Namhyung Kim76a26542015-10-22 23:28:32 +09001107const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP
1108 "\n\t\t\t\tDefault: fp,graph,0.5,caller,function";
Namhyung Kima2c10d32015-10-22 15:28:49 +09001109
Arnaldo Carvalho de Melob0ad8ea2017-03-27 11:47:20 -03001110int cmd_top(int argc, const char **argv)
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001111{
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001112 char errbuf[BUFSIZ];
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001113 struct perf_top top = {
1114 .count_filter = 5,
1115 .delay_secs = 2,
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001116 .record_opts = {
1117 .mmap_pages = UINT_MAX,
1118 .user_freq = UINT_MAX,
1119 .user_interval = ULLONG_MAX,
1120 .freq = 4000, /* 4 KHz */
Waiman Long5dbb6e82013-10-18 10:38:49 -04001121 .target = {
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001122 .uses_mmap = true,
1123 },
Kan Liang9d9cad72015-06-17 09:51:11 -04001124 .proc_map_timeout = 500,
Namhyung Kimd1cb9fc2012-05-16 18:45:49 +09001125 },
Arnaldo Carvalho de Melo4cb93442016-04-27 10:16:24 -03001126 .max_stack = sysctl_perf_event_max_stack,
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001127 .sym_pcnt_filter = 5,
Kan Liang0c6b4992017-09-29 07:47:55 -07001128 .nr_threads_synthesize = UINT_MAX,
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001129 };
Arnaldo Carvalho de Melob4006792013-12-19 14:43:45 -03001130 struct record_opts *opts = &top.record_opts;
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001131 struct target *target = &opts->target;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001132 const struct option options[] = {
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001133 OPT_CALLBACK('e', "event", &top.evlist, "event",
Thomas Gleixner86847b62009-06-06 12:24:17 +02001134 "event selector. use 'perf list' to list available events",
Jiri Olsaf120f9d2011-07-14 11:25:32 +02001135 parse_events_option),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001136 OPT_U64('c', "count", &opts->user_interval, "event period to sample"),
1137 OPT_STRING('p', "pid", &target->pid, "pid",
Zhang, Yanmind6d901c2010-03-18 11:36:05 -03001138 "profile events on existing process id"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001139 OPT_STRING('t', "tid", &target->tid, "tid",
Zhang, Yanmind6d901c2010-03-18 11:36:05 -03001140 "profile events on existing thread id"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001141 OPT_BOOLEAN('a', "all-cpus", &target->system_wide,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001142 "system-wide collection from all CPUs"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001143 OPT_STRING('C', "cpu", &target->cpu_list, "cpu",
Stephane Eranianc45c6ea2010-05-28 12:00:01 +02001144 "list of cpus to monitor"),
Arnaldo Carvalho de Melob32d1332009-11-24 12:05:15 -02001145 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1146 "file", "vmlinux pathname"),
Willy Tarreaufc2be692013-09-14 10:32:59 +02001147 OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux,
1148 "don't load vmlinux even if found"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001149 OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols,
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -02001150 "hide kernel symbols"),
Jiri Olsa994a1f72013-09-01 12:36:12 +02001151 OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages",
1152 "number of mmap data pages",
1153 perf_evlist__parse_mmap_pages),
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001154 OPT_INTEGER('r', "realtime", &top.realtime_prio,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001155 "collect data with this RT SCHED_FIFO priority"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001156 OPT_INTEGER('d', "delay", &top.delay_secs,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001157 "number of seconds to delay between refreshes"),
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001158 OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001159 "dump the symbol table used for profiling"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001160 OPT_INTEGER('f', "count-filter", &top.count_filter,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001161 "only display functions with more events than this"),
David Ahernbf806692013-11-14 20:51:30 -07001162 OPT_BOOLEAN(0, "group", &opts->group,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001163 "put the counters into a counter group"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001164 OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit,
1165 "child tasks do not inherit counters"),
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001166 OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name",
Kirill Smelkov6cff0e82010-02-03 16:52:08 -02001167 "symbol to annotate"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001168 OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"),
1169 OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001170 OPT_INTEGER('E', "entries", &top.print_entries,
Ingo Molnar6e53cdf2009-06-04 08:53:05 +02001171 "display this many functions"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001172 OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols,
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -02001173 "hide user symbols"),
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001174 OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"),
1175 OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"),
Ian Munsiec0555642010-04-13 18:37:33 +10001176 OPT_INCR('v', "verbose", &verbose,
Ingo Molnar3da297a2009-06-07 17:39:02 +02001177 "be more verbose (show counter open errors, etc)"),
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -03001178 OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
Namhyung Kima2ce0672014-03-04 09:06:42 +09001179 "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..."
1180 " Please refer the man page for the complete list."),
Namhyung Kim6fe8c262014-03-04 11:01:41 +09001181 OPT_STRING(0, "fields", &field_order, "key[,keys...]",
1182 "output field(s): overhead, period, sample plus all of sort keys"),
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -03001183 OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
1184 "Show a column with the number of samples"),
Arnaldo Carvalho de Melo2ddd5c02016-04-18 12:09:08 -03001185 OPT_CALLBACK_NOOPT('g', NULL, &callchain_param,
Namhyung Kima2c10d32015-10-22 15:28:49 +09001186 NULL, "enables call-graph recording and display",
Jiri Olsaae779a62013-10-26 16:25:34 +02001187 &callchain_opt),
Arnaldo Carvalho de Melo2ddd5c02016-04-18 12:09:08 -03001188 OPT_CALLBACK(0, "call-graph", &callchain_param,
Namhyung Kim76a26542015-10-22 23:28:32 +09001189 "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]",
Namhyung Kima2c10d32015-10-22 15:28:49 +09001190 top_callchain_help, &parse_callchain_opt),
Namhyung Kim1432ec32013-10-30 17:05:55 +09001191 OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
1192 "Accumulate callchains of children and show total overhead as well"),
Waiman Long5dbb6e82013-10-18 10:38:49 -04001193 OPT_INTEGER(0, "max-stack", &top.max_stack,
1194 "Set the maximum stack depth when parsing the callchain. "
Arnaldo Carvalho de Melo4cb93442016-04-27 10:16:24 -03001195 "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)),
Greg Priceb21484f2012-12-06 21:48:05 -08001196 OPT_CALLBACK(0, "ignore-callees", NULL, "regex",
1197 "ignore callees of these functions in call graphs",
1198 report_parse_ignore_callees_opt),
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -03001199 OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
1200 "Show a column with the sum of periods"),
1201 OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
1202 "only consider symbols in these dsos"),
1203 OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
1204 "only consider symbols in these comms"),
1205 OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
1206 "only consider these symbols"),
Arnaldo Carvalho de Melo64c6f0c2011-10-06 12:48:31 -03001207 OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src,
1208 "Interleave source code with assembly code (default)"),
1209 OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw,
1210 "Display raw encoding of assembly instructions (default)"),
Avi Kivity763122a2014-09-13 07:15:05 +03001211 OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
1212 "Enable kernel symbol demangling"),
Sukadev Bhattiprolu0d3942d2013-05-14 22:56:51 -07001213 OPT_STRING(0, "objdump", &objdump_path, "path",
1214 "objdump binary to use for disassembly and annotations"),
Arnaldo Carvalho de Melo64c6f0c2011-10-06 12:48:31 -03001215 OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
1216 "Specify disassembler style (e.g. -M intel for intel syntax)"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001217 OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"),
Namhyung Kimfa5df942013-05-14 11:09:05 +09001218 OPT_CALLBACK(0, "percent-limit", &top, "percent",
1219 "Don't show entries under that percent", parse_percent_limit),
Namhyung Kim33db4562014-02-07 12:06:07 +09001220 OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
1221 "How to display percentage of filtered entries", parse_filter_percentage),
Namhyung Kimcf590022014-07-31 14:47:39 +09001222 OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
1223 "width[,width...]",
1224 "don't try to adjust column width, use these fixed values"),
Kan Liang9d9cad72015-06-17 09:51:11 -04001225 OPT_UINTEGER(0, "proc-map-timeout", &opts->proc_map_timeout,
1226 "per thread proc mmap processing timeout in ms"),
Andi Kleena18b027e2015-07-18 08:24:52 -07001227 OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack,
1228 "branch any", "sample any taken branches",
1229 parse_branch_stack),
1230 OPT_CALLBACK('j', "branch-filter", &opts->branch_stack,
1231 "branch filter mask", "branch stack filter modes",
1232 parse_branch_stack),
Namhyung Kim053a3982015-12-23 02:07:05 +09001233 OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace,
1234 "Show raw trace event output (do not use print fmt or plugins)"),
Namhyung Kimc92fcfd2016-02-25 00:13:50 +09001235 OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy,
1236 "Show entries in a hierarchy"),
Krister Johansen868a8322017-07-05 18:48:12 -07001237 OPT_BOOLEAN(0, "force", &symbol_conf.force, "don't complain, do it"),
Kan Liang0c6b4992017-09-29 07:47:55 -07001238 OPT_UINTEGER(0, "num-thread-synthesize", &top.nr_threads_synthesize,
1239 "number of thread to run event synthesize"),
Ingo Molnarb456bae2009-05-26 09:17:18 +02001240 OPT_END()
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001241 };
Arnaldo Carvalho de Melobe772842012-10-01 15:20:58 -03001242 const char * const top_usage[] = {
1243 "perf top [<options>]",
1244 NULL
1245 };
Arnaldo Carvalho de Meloa635fc52014-10-09 16:16:00 -03001246 int status = hists__init();
1247
1248 if (status < 0)
1249 return status;
Ingo Molnarb456bae2009-05-26 09:17:18 +02001250
Namhyung Kim334fe7a2013-03-11 16:43:12 +09001251 top.evlist = perf_evlist__new();
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001252 if (top.evlist == NULL)
Arnaldo Carvalho de Melo361c99a2011-01-11 20:56:53 -02001253 return -ENOMEM;
1254
Arnaldo Carvalho de Meloecc4c562017-01-24 13:44:10 -03001255 status = perf_config(perf_top_config, &top);
1256 if (status)
1257 return status;
Jiri Olsaeb853e82014-02-03 12:44:42 +01001258
Ingo Molnarb456bae2009-05-26 09:17:18 +02001259 argc = parse_options(argc, argv, options, top_usage, 0);
1260 if (argc)
1261 usage_with_options(top_usage, options);
1262
Namhyung Kim54f8f402015-12-23 02:07:01 +09001263 if (!top.evlist->nr_entries &&
1264 perf_evlist__add_default(top.evlist) < 0) {
1265 pr_err("Not enough memory for event selector list\n");
1266 goto out_delete_evlist;
1267 }
1268
Namhyung Kimc92fcfd2016-02-25 00:13:50 +09001269 if (symbol_conf.report_hierarchy) {
1270 /* disable incompatible options */
1271 symbol_conf.event_group = false;
1272 symbol_conf.cumulate_callchain = false;
1273
1274 if (field_order) {
1275 pr_err("Error: --hierarchy and --fields options cannot be used together\n");
1276 parse_options_usage(top_usage, options, "fields", 0);
1277 parse_options_usage(NULL, options, "hierarchy", 0);
1278 goto out_delete_evlist;
1279 }
1280 }
1281
Namhyung Kim512ae1b2014-03-18 11:31:39 +09001282 sort__mode = SORT_MODE__TOP;
Namhyung Kim3a5714f2013-05-14 11:09:01 +09001283 /* display thread wants entries to be collapsed in a different tree */
Jiri Olsa52225032016-05-03 13:54:42 +02001284 perf_hpp_list.need_collapse = 1;
Namhyung Kim3a5714f2013-05-14 11:09:01 +09001285
Arnaldo Carvalho de Melo3ee60c32016-01-18 10:24:06 +01001286 if (top.use_stdio)
1287 use_browser = 0;
1288 else if (top.use_tui)
1289 use_browser = 1;
1290
1291 setup_browser(false);
1292
Namhyung Kim40184c42015-12-23 02:07:01 +09001293 if (setup_sorting(top.evlist) < 0) {
Namhyung Kim6fe8c262014-03-04 11:01:41 +09001294 if (sort_order)
1295 parse_options_usage(top_usage, options, "s", 1);
1296 if (field_order)
1297 parse_options_usage(sort_order ? NULL : top_usage,
1298 options, "fields", 0);
1299 goto out_delete_evlist;
1300 }
Namhyung Kim22af9692014-04-16 11:04:51 +09001301
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001302 status = target__validate(target);
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001303 if (status) {
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001304 target__strerror(target, status, errbuf, BUFSIZ);
Ingo Molnarea432a8b2013-11-13 00:26:09 +01001305 ui__warning("%s\n", errbuf);
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001306 }
Namhyung Kim4bd0f2d2012-04-26 14:15:18 +09001307
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001308 status = target__parse_uid(target);
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001309 if (status) {
1310 int saved_errno = errno;
1311
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001312 target__strerror(target, status, errbuf, BUFSIZ);
Ingo Molnarea432a8b2013-11-13 00:26:09 +01001313 ui__error("%s\n", errbuf);
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001314
1315 status = -saved_errno;
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -02001316 goto out_delete_evlist;
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001317 }
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -02001318
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001319 if (target__none(target))
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001320 target->system_wide = true;
Arnaldo Carvalho de Melo10b47d52012-05-07 16:33:56 -03001321
Arnaldo Carvalho de Melof8a5c0b2015-12-10 14:48:45 -03001322 if (perf_evlist__create_maps(top.evlist, target) < 0) {
1323 ui__error("Couldn't create thread/CPU maps: %s\n",
Arnaldo Carvalho de Meloc8b5f2c2016-07-06 11:56:20 -03001324 errno == ENOENT ? "No such process" : str_error_r(errno, errbuf, sizeof(errbuf)));
Arnaldo Carvalho de Melof8a5c0b2015-12-10 14:48:45 -03001325 goto out_delete_evlist;
1326 }
Arnaldo Carvalho de Melo7e2ed092011-01-30 11:59:43 -02001327
Arnaldo Carvalho de Melod04b35f2011-11-11 22:17:32 -02001328 symbol_conf.nr_events = top.evlist->nr_entries;
1329
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001330 if (top.delay_secs < 1)
1331 top.delay_secs = 1;
Frederic Weisbecker2f335a02009-06-05 19:31:01 +02001332
Arnaldo Carvalho de Melob4006792013-12-19 14:43:45 -03001333 if (record_opts__config(opts)) {
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001334 status = -EINVAL;
Arnaldo Carvalho de Melo03ad9742014-01-03 15:56:06 -03001335 goto out_delete_evlist;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001336 }
1337
Arnaldo Carvalho de Melo0c21f732012-08-14 16:42:15 -03001338 top.sym_evsel = perf_evlist__first(top.evlist);
Arnaldo Carvalho de Melocc841582011-01-11 15:16:52 -02001339
Arnaldo Carvalho de Meloe3815262016-04-18 12:30:16 -03001340 if (!callchain_param.enabled) {
Namhyung Kim1432ec32013-10-30 17:05:55 +09001341 symbol_conf.cumulate_callchain = false;
1342 perf_hpp__cancel_cumulate();
1343 }
1344
Namhyung Kim792aeaf2015-10-22 16:45:46 +09001345 if (symbol_conf.cumulate_callchain && !callchain_param.order_set)
1346 callchain_param.order = ORDER_CALLER;
1347
Arnaldo Carvalho de Melob01141f2016-08-25 16:09:21 -03001348 status = symbol__annotation_init();
1349 if (status < 0)
1350 goto out_delete_evlist;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001351
1352 symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL);
Namhyung Kim0a7e6d12014-08-12 15:40:45 +09001353 if (symbol__init(NULL) < 0)
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001354 return -1;
1355
Namhyung Kim08e71542013-04-03 21:26:19 +09001356 sort__setup_elide(stdout);
Arnaldo Carvalho de Meloab81f3fd2011-10-05 19:16:15 -03001357
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001358 get_term_dimensions(&top.winsize);
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001359 if (top.print_entries == 0) {
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001360 struct sigaction act = {
1361 .sa_sigaction = perf_top__sig_winch,
1362 .sa_flags = SA_SIGINFO,
1363 };
1364 perf_top__update_print_entries(&top);
1365 sigaction(SIGWINCH, &act, NULL);
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -02001366 }
1367
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001368 status = __cmd_top(&top);
Arnaldo Carvalho de Melo806fb632011-11-29 08:05:52 -02001369
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -02001370out_delete_evlist:
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001371 perf_evlist__delete(top.evlist);
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001372
1373 return status;
Ingo Molnarb456bae2009-05-26 09:17:18 +02001374}