blob: e68c866ae798ae4006a04074169ef2090d028b2d [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 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"
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 Melob0a7d1a2012-10-06 16:26:02 -030030#include "util/machine.h"
Arnaldo Carvalho de Melob3165f42009-12-13 19:50:28 -020031#include "util/session.h"
32#include "util/symbol.h"
Arnaldo Carvalho de Melo439d4732009-10-02 03:29:58 -030033#include "util/thread.h"
Arnaldo Carvalho de Melofd782602011-01-18 15:15:24 -020034#include "util/thread_map.h"
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -020035#include "util/top.h"
Ingo Molnar148be2c2009-04-27 08:02:14 +020036#include "util/util.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 Meloab81f3f2011-10-05 19:16:15 -030042#include "util/sort.h"
David Ahern6b118e92012-07-30 22:31:35 -060043#include "util/intlist.h"
Andi Kleena18b0272015-07-18 08:24:52 -070044#include "util/parse-branch-options.h"
Sukadev Bhattiprolu0d3942d2013-05-14 22:56:51 -070045#include "arch/common.h"
Ingo Molnar07800602009-04-20 15:00:56 +020046
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +020047#include "util/debug.h"
48
Ingo Molnar07800602009-04-20 15:00:56 +020049#include <assert.h>
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -030050#include <elf.h>
Ingo Molnar07800602009-04-20 15:00:56 +020051#include <fcntl.h>
Ingo Molnar0e9b20b2009-05-26 09:17:18 +020052
Ingo Molnar07800602009-04-20 15:00:56 +020053#include <stdio.h>
Mike Galbraith923c42c2009-07-22 20:36:03 +020054#include <termios.h>
55#include <unistd.h>
Arnaldo Carvalho de Melo9486aa32011-01-22 20:37:02 -020056#include <inttypes.h>
Ingo Molnar0e9b20b2009-05-26 09:17:18 +020057
Ingo Molnar07800602009-04-20 15:00:56 +020058#include <errno.h>
Ingo Molnar07800602009-04-20 15:00:56 +020059#include <time.h>
60#include <sched.h>
Ingo Molnar07800602009-04-20 15:00:56 +020061
62#include <sys/syscall.h>
63#include <sys/ioctl.h>
Arnaldo Carvalho de Meloa8fa4962014-09-15 15:54:34 -030064#include <poll.h>
Ingo Molnar07800602009-04-20 15:00:56 +020065#include <sys/prctl.h>
66#include <sys/wait.h>
67#include <sys/uio.h>
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -030068#include <sys/utsname.h>
Ingo Molnar07800602009-04-20 15:00:56 +020069#include <sys/mman.h>
70
Arnaldo Carvalho de Melo531d2412016-03-23 15:16:55 -030071#include <linux/stringify.h>
Arnaldo Carvalho de Melob9c4b0f2016-08-08 15:37:58 -030072#include <linux/time64.h>
Ingo Molnar07800602009-04-20 15:00:56 +020073#include <linux/types.h>
74
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -030075static volatile int done;
Jiri Olsaa2eca0c2017-11-14 10:23:39 +010076static volatile int resize;
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -030077
Namhyung Kim933cbb12013-05-14 11:08:59 +090078#define HEADER_LINE_NR 5
79
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -020080static void perf_top__update_print_entries(struct perf_top *top)
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -020081{
Namhyung Kim933cbb12013-05-14 11:08:59 +090082 top->print_entries = top->winsize.ws_row - HEADER_LINE_NR;
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -020083}
84
Irina Tirdea1d037ca2012-09-11 01:15:03 +030085static void perf_top__sig_winch(int sig __maybe_unused,
Jiri Olsaa2eca0c2017-11-14 10:23:39 +010086 siginfo_t *info __maybe_unused, void *arg __maybe_unused)
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -020087{
Jiri Olsaa2eca0c2017-11-14 10:23:39 +010088 resize = 1;
89}
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -020090
Jiri Olsaa2eca0c2017-11-14 10:23:39 +010091static void perf_top__resize(struct perf_top *top)
92{
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -020093 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 Meloab81f3f2011-10-05 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 Meloab81f3f2011-10-05 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
Arnaldo Carvalho de Melo5cb725a2016-07-29 16:44:56 -0300137 err = symbol__disassemble(sym, map, 0);
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 Meloab81f3f2011-10-05 19:16:15 -0300151static void __zero_source_counters(struct hist_entry *he)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200152{
Arnaldo Carvalho de Meloab81f3f2011-10-05 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,
186 int counter, u64 ip)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200187{
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200188 struct annotation *notes;
Namhyung Kimbeefb8d2015-12-11 11:56:56 +0900189 struct symbol *sym = he->ms.sym;
Namhyung Kim48c65bd2014-02-20 10:32:53 +0900190 int err = 0;
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200191
Namhyung Kimbeefb8d2015-12-11 11:56:56 +0900192 if (sym == NULL || (use_browser == 0 &&
193 (top->sym_filter_entry == NULL ||
194 top->sym_filter_entry->ms.sym != sym)))
Mike Galbraith923c42c2009-07-22 20:36:03 +0200195 return;
196
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200197 notes = symbol__annotation(sym);
198
199 if (pthread_mutex_trylock(&notes->lock))
Mike Galbraith923c42c2009-07-22 20:36:03 +0200200 return;
201
Namhyung Kim448f13b2015-12-11 11:56:55 +0900202 err = hist_entry__inc_addr_samples(he, counter, ip);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200203
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200204 pthread_mutex_unlock(&notes->lock);
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -0300205
Namhyung Kim151ee832015-12-11 11:56:54 +0900206 if (unlikely(err)) {
207 /*
208 * This function is now called with he->hists->lock held.
209 * Release it before going to sleep.
210 */
211 pthread_mutex_unlock(&he->hists->lock);
Namhyung Kim7c503912014-01-07 17:41:03 +0900212
Namhyung Kim151ee832015-12-11 11:56:54 +0900213 if (err == -ERANGE && !he->ms.map->erange_warned)
214 ui__warn_map_erange(he->ms.map, sym, ip);
215 else if (err == -ENOMEM) {
216 pr_err("Not enough memory for annotating '%s' symbol!\n",
217 sym->name);
218 sleep(1);
219 }
220
221 pthread_mutex_lock(&he->hists->lock);
Arnaldo Carvalho de Melob66d8c02013-12-18 15:37:41 -0300222 }
Mike Galbraith923c42c2009-07-22 20:36:03 +0200223}
224
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200225static void perf_top__show_details(struct perf_top *top)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200226{
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200227 struct hist_entry *he = top->sym_filter_entry;
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200228 struct annotation *notes;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200229 struct symbol *symbol;
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200230 int more;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200231
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300232 if (!he)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200233 return;
234
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300235 symbol = he->ms.sym;
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200236 notes = symbol__annotation(symbol);
237
238 pthread_mutex_lock(&notes->lock);
239
240 if (notes->src == NULL)
241 goto out_unlock;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200242
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300243 printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200244 printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200245
Namhyung Kimdb8fd072013-03-05 14:53:21 +0900246 more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel,
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200247 0, top->sym_pcnt_filter, top->print_entries, 4);
Arnaldo Carvalho de Melo5d484f92015-06-17 16:50:52 -0300248
249 if (top->evlist->enabled) {
250 if (top->zero)
251 symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx);
252 else
253 symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx);
254 }
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200255 if (more != 0)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200256 printf("%d lines not displayed, maybe increase display entries [e]\n", more);
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200257out_unlock:
258 pthread_mutex_unlock(&notes->lock);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200259}
Ingo Molnar07800602009-04-20 15:00:56 +0200260
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200261static void perf_top__print_sym_table(struct perf_top *top)
Ingo Molnar07800602009-04-20 15:00:56 +0200262{
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200263 char bf[160];
264 int printed = 0;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200265 const int win_width = top->winsize.ws_col - 1;
Jiri Olsa452ce032016-01-18 10:24:00 +0100266 struct perf_evsel *evsel = top->sym_evsel;
267 struct hists *hists = evsel__hists(evsel);
Mike Galbraithd94b9432009-05-25 09:57:56 +0200268
Frederic Weisbecker0f5486b2009-06-04 20:48:04 +0200269 puts(CONSOLE_CLEAR);
Ingo Molnar07800602009-04-20 15:00:56 +0200270
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200271 perf_top__header_snprintf(top, bf, sizeof(bf));
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200272 printf("%s\n", bf);
Ingo Molnar07800602009-04-20 15:00:56 +0200273
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200274 perf_top__reset_sample_counters(top);
Ingo Molnar07800602009-04-20 15:00:56 +0200275
Arnaldo Carvalho de Melo1a105f72009-11-17 15:40:55 -0200276 printf("%-*.*s\n", win_width, win_width, graph_dotted_line);
Ingo Molnar07800602009-04-20 15:00:56 +0200277
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300278 if (hists->stats.nr_lost_warned !=
279 hists->stats.nr_events[PERF_RECORD_LOST]) {
280 hists->stats.nr_lost_warned =
281 hists->stats.nr_events[PERF_RECORD_LOST];
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200282 color_fprintf(stdout, PERF_COLOR_RED,
283 "WARNING: LOST %d chunks, Check IO/CPU overload",
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300284 hists->stats.nr_lost_warned);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300285 ++printed;
Arnaldo Carvalho de Melo93fc64f2011-01-29 12:08:00 -0200286 }
287
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200288 if (top->sym_filter_entry) {
289 perf_top__show_details(top);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200290 return;
291 }
292
Arnaldo Carvalho de Melo5d484f92015-06-17 16:50:52 -0300293 if (top->evlist->enabled) {
294 if (top->zero) {
295 hists__delete_entries(hists);
296 } else {
297 hists__decay_entries(hists, top->hide_user_symbols,
298 top->hide_kernel_symbols);
299 }
Namhyung Kim701937b2014-08-12 17:16:05 +0900300 }
301
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300302 hists__collapse_resort(hists, NULL);
Jiri Olsa452ce032016-01-18 10:24:00 +0100303 perf_evsel__output_resort(evsel, NULL);
Namhyung Kim701937b2014-08-12 17:16:05 +0900304
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300305 hists__output_recalc_col_len(hists, top->print_entries - printed);
Arnaldo Carvalho de Melo7cc017e2009-11-24 12:05:14 -0200306 putchar('\n');
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300307 hists__fprintf(hists, false, top->print_entries - printed, win_width,
Jiri Olsad05e3aa2016-06-14 20:19:18 +0200308 top->min_percent, stdout, symbol_conf.use_callchain);
Ingo Molnar07800602009-04-20 15:00:56 +0200309}
310
Mike Galbraith923c42c2009-07-22 20:36:03 +0200311static void prompt_integer(int *target, const char *msg)
312{
313 char *buf = malloc(0), *p;
314 size_t dummy = 0;
315 int tmp;
316
317 fprintf(stdout, "\n%s: ", msg);
318 if (getline(&buf, &dummy, stdin) < 0)
319 return;
320
321 p = strchr(buf, '\n');
322 if (p)
323 *p = 0;
324
325 p = buf;
326 while(*p) {
327 if (!isdigit(*p))
328 goto out_free;
329 p++;
330 }
331 tmp = strtoul(buf, NULL, 10);
332 *target = tmp;
333out_free:
334 free(buf);
335}
336
337static void prompt_percent(int *target, const char *msg)
338{
339 int tmp = 0;
340
341 prompt_integer(&tmp, msg);
342 if (tmp >= 0 && tmp <= 100)
343 *target = tmp;
344}
345
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200346static void perf_top__prompt_symbol(struct perf_top *top, const char *msg)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200347{
348 char *buf = malloc(0), *p;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200349 struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL;
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300350 struct hists *hists = evsel__hists(top->sym_evsel);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300351 struct rb_node *next;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200352 size_t dummy = 0;
353
354 /* zero counters of active symbol */
355 if (syme) {
Mike Galbraith923c42c2009-07-22 20:36:03 +0200356 __zero_source_counters(syme);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200357 top->sym_filter_entry = NULL;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200358 }
359
360 fprintf(stdout, "\n%s: ", msg);
361 if (getline(&buf, &dummy, stdin) < 0)
362 goto out_free;
363
364 p = strchr(buf, '\n');
365 if (p)
366 *p = 0;
367
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300368 next = rb_first(&hists->entries);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300369 while (next) {
370 n = rb_entry(next, struct hist_entry, rb_node);
371 if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) {
372 found = n;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200373 break;
374 }
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300375 next = rb_next(&n->rb_node);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200376 }
377
378 if (!found) {
Kirill Smelkov66aeb6d2010-01-13 13:22:19 -0200379 fprintf(stderr, "Sorry, %s is not active.\n", buf);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200380 sleep(1);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200381 } else
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200382 perf_top__parse_source(top, found);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200383
384out_free:
385 free(buf);
386}
387
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200388static void perf_top__print_mapped_keys(struct perf_top *top)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200389{
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200390 char *name = NULL;
391
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200392 if (top->sym_filter_entry) {
393 struct symbol *sym = top->sym_filter_entry->ms.sym;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200394 name = sym->name;
395 }
396
397 fprintf(stdout, "\nMapped keys:\n");
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200398 fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs);
399 fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200400
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200401 if (top->evlist->nr_entries > 1)
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300402 fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel));
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200403
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200404 fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200405
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200406 fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter);
Kirill Smelkov6cff0e82010-02-03 16:52:08 -0200407 fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL");
408 fprintf(stdout, "\t[S] stop annotation.\n");
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200409
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200410 fprintf(stdout,
Kirill Smelkov1a72cfa2010-02-12 19:20:59 +0300411 "\t[K] hide kernel_symbols symbols. \t(%s)\n",
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200412 top->hide_kernel_symbols ? "yes" : "no");
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200413 fprintf(stdout,
414 "\t[U] hide user symbols. \t(%s)\n",
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200415 top->hide_user_symbols ? "yes" : "no");
416 fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200417 fprintf(stdout, "\t[qQ] quit.\n");
418}
419
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200420static int perf_top__key_mapped(struct perf_top *top, int c)
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200421{
422 switch (c) {
423 case 'd':
424 case 'e':
425 case 'f':
426 case 'z':
427 case 'q':
428 case 'Q':
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200429 case 'K':
430 case 'U':
Kirill Smelkov6cff0e82010-02-03 16:52:08 -0200431 case 'F':
432 case 's':
433 case 'S':
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200434 return 1;
435 case 'E':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200436 return top->evlist->nr_entries > 1 ? 1 : 0;
Ingo Molnar83a09442009-08-15 12:26:57 +0200437 default:
438 break;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200439 }
440
441 return 0;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200442}
443
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300444static bool perf_top__handle_keypress(struct perf_top *top, int c)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200445{
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300446 bool ret = true;
447
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200448 if (!perf_top__key_mapped(top, c)) {
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200449 struct pollfd stdin_poll = { .fd = 0, .events = POLLIN };
Jiri Olsa3969cc092014-08-15 16:24:45 -0300450 struct termios save;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200451
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200452 perf_top__print_mapped_keys(top);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200453 fprintf(stdout, "\nEnter selection, or unmapped key to continue: ");
454 fflush(stdout);
455
Jiri Olsa3969cc092014-08-15 16:24:45 -0300456 set_term_quiet_input(&save);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200457
458 poll(&stdin_poll, 1, -1);
459 c = getc(stdin);
460
461 tcsetattr(0, TCSAFLUSH, &save);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200462 if (!perf_top__key_mapped(top, c))
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300463 return ret;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200464 }
465
Mike Galbraith923c42c2009-07-22 20:36:03 +0200466 switch (c) {
467 case 'd':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200468 prompt_integer(&top->delay_secs, "Enter display delay");
469 if (top->delay_secs < 1)
470 top->delay_secs = 1;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200471 break;
472 case 'e':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200473 prompt_integer(&top->print_entries, "Enter display entries (lines)");
474 if (top->print_entries == 0) {
475 struct sigaction act = {
476 .sa_sigaction = perf_top__sig_winch,
477 .sa_flags = SA_SIGINFO,
478 };
Jiri Olsaa2eca0c2017-11-14 10:23:39 +0100479 perf_top__resize(top);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200480 sigaction(SIGWINCH, &act, NULL);
Stephane Eranian509605d2012-01-30 11:50:37 +0100481 } else {
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -0200482 signal(SIGWINCH, SIG_DFL);
Stephane Eranian509605d2012-01-30 11:50:37 +0100483 }
Mike Galbraith923c42c2009-07-22 20:36:03 +0200484 break;
485 case 'E':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200486 if (top->evlist->nr_entries > 1) {
Akihiro Nagaice2d17c2011-03-23 16:29:39 +0900487 /* Select 0 as the default event: */
488 int counter = 0;
489
Mike Galbraith923c42c2009-07-22 20:36:03 +0200490 fprintf(stderr, "\nAvailable events:");
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200491
Arnaldo Carvalho de Meloe5cadb92016-06-23 11:26:15 -0300492 evlist__for_each_entry(top->evlist, top->sym_evsel)
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300493 fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel));
Mike Galbraith923c42c2009-07-22 20:36:03 +0200494
Arnaldo Carvalho de Meloec52d972011-03-11 10:11:48 -0300495 prompt_integer(&counter, "Enter details event counter");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200496
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200497 if (counter >= top->evlist->nr_entries) {
Arnaldo Carvalho de Melo0c21f732012-08-14 16:42:15 -0300498 top->sym_evsel = perf_evlist__first(top->evlist);
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300499 fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel));
Mike Galbraith923c42c2009-07-22 20:36:03 +0200500 sleep(1);
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200501 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200502 }
Arnaldo Carvalho de Meloe5cadb92016-06-23 11:26:15 -0300503 evlist__for_each_entry(top->evlist, top->sym_evsel)
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200504 if (top->sym_evsel->idx == counter)
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200505 break;
Arnaldo Carvalho de Meloec52d972011-03-11 10:11:48 -0300506 } else
Arnaldo Carvalho de Melo0c21f732012-08-14 16:42:15 -0300507 top->sym_evsel = perf_evlist__first(top->evlist);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200508 break;
509 case 'f':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200510 prompt_integer(&top->count_filter, "Enter display event count filter");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200511 break;
512 case 'F':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200513 prompt_percent(&top->sym_pcnt_filter,
514 "Enter details display event filter (percent)");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200515 break;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200516 case 'K':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200517 top->hide_kernel_symbols = !top->hide_kernel_symbols;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200518 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200519 case 'q':
520 case 'Q':
521 printf("exiting.\n");
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200522 if (top->dump_symtab)
523 perf_session__fprintf_dsos(top->session, stderr);
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300524 ret = false;
525 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200526 case 's':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200527 perf_top__prompt_symbol(top, "Enter details symbol");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200528 break;
529 case 'S':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200530 if (!top->sym_filter_entry)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200531 break;
532 else {
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200533 struct hist_entry *syme = top->sym_filter_entry;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200534
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200535 top->sym_filter_entry = NULL;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200536 __zero_source_counters(syme);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200537 }
538 break;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200539 case 'U':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200540 top->hide_user_symbols = !top->hide_user_symbols;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200541 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200542 case 'z':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200543 top->zero = !top->zero;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200544 break;
Ingo Molnar83a09442009-08-15 12:26:57 +0200545 default:
546 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200547 }
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300548
549 return ret;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200550}
551
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300552static void perf_top__sort_new_samples(void *arg)
553{
554 struct perf_top *t = arg;
Jiri Olsa452ce032016-01-18 10:24:00 +0100555 struct perf_evsel *evsel = t->sym_evsel;
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300556 struct hists *hists;
557
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300558 perf_top__reset_sample_counters(t);
559
560 if (t->evlist->selected != NULL)
561 t->sym_evsel = t->evlist->selected;
562
Jiri Olsa452ce032016-01-18 10:24:00 +0100563 hists = evsel__hists(evsel);
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300564
Arnaldo Carvalho de Melo5d484f92015-06-17 16:50:52 -0300565 if (t->evlist->enabled) {
566 if (t->zero) {
567 hists__delete_entries(hists);
568 } else {
569 hists__decay_entries(hists, t->hide_user_symbols,
570 t->hide_kernel_symbols);
571 }
Namhyung Kim701937b2014-08-12 17:16:05 +0900572 }
573
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300574 hists__collapse_resort(hists, NULL);
Jiri Olsa452ce032016-01-18 10:24:00 +0100575 perf_evsel__output_resort(evsel, NULL);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300576}
577
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200578static void *display_thread_tui(void *arg)
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -0200579{
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -0200580 struct perf_evsel *pos;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200581 struct perf_top *top = arg;
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300582 const char *help = "For a higher level overview, try: perf top --sort comm,dso";
Namhyung Kim9783adf2012-11-02 14:50:05 +0900583 struct hist_browser_timer hbt = {
584 .timer = perf_top__sort_new_samples,
585 .arg = top,
586 .refresh = top->delay_secs,
587 };
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300588
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200589 perf_top__sort_new_samples(top);
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -0200590
591 /*
592 * Initialize the uid_filter_str, in the future the TUI will allow
593 * Zooming in/out UIDs. For now juse use whatever the user passed
594 * via --uid.
595 */
Arnaldo Carvalho de Meloe5cadb92016-06-23 11:26:15 -0300596 evlist__for_each_entry(top->evlist, pos) {
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300597 struct hists *hists = evsel__hists(pos);
598 hists->uid_filter_str = top->record_opts.target.uid_str;
599 }
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -0200600
Namhyung Kim13d1e532015-06-21 12:41:16 +0900601 perf_evlist__tui_browse_hists(top->evlist, help, &hbt,
602 top->min_percent,
603 &top->session->header.env);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300604
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300605 done = 1;
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -0200606 return NULL;
607}
608
Jiri Olsa4a1a9972014-08-11 10:50:07 +0200609static void display_sig(int sig __maybe_unused)
610{
611 done = 1;
612}
613
614static void display_setup_sig(void)
615{
Arnaldo Carvalho de Melo09f4d782015-08-19 15:16:08 -0300616 signal(SIGSEGV, sighandler_dump_stack);
617 signal(SIGFPE, sighandler_dump_stack);
Jiri Olsa4a1a9972014-08-11 10:50:07 +0200618 signal(SIGINT, display_sig);
619 signal(SIGQUIT, display_sig);
620 signal(SIGTERM, display_sig);
621}
622
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200623static void *display_thread(void *arg)
Ingo Molnar07800602009-04-20 15:00:56 +0200624{
Frederic Weisbecker0f5486b2009-06-04 20:48:04 +0200625 struct pollfd stdin_poll = { .fd = 0, .events = POLLIN };
Jiri Olsa9398c482014-08-11 10:50:02 +0200626 struct termios save;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200627 struct perf_top *top = arg;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200628 int delay_msecs, c;
Frederic Weisbecker0f5486b2009-06-04 20:48:04 +0200629
Jiri Olsa4a1a9972014-08-11 10:50:07 +0200630 display_setup_sig();
Arnaldo Carvalho de Melo3af6e332011-10-13 08:52:46 -0300631 pthread__unblock_sigwinch();
Mike Galbraith923c42c2009-07-22 20:36:03 +0200632repeat:
Arnaldo Carvalho de Melob9c4b0f2016-08-08 15:37:58 -0300633 delay_msecs = top->delay_secs * MSEC_PER_SEC;
Jiri Olsa9398c482014-08-11 10:50:02 +0200634 set_term_quiet_input(&save);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200635 /* trash return*/
636 getc(stdin);
Ingo Molnar07800602009-04-20 15:00:56 +0200637
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300638 while (!done) {
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200639 perf_top__print_sym_table(top);
Arnaldo Carvalho de Melo3af6e332011-10-13 08:52:46 -0300640 /*
641 * Either timeout expired or we got an EINTR due to SIGWINCH,
642 * refresh screen in both cases.
643 */
644 switch (poll(&stdin_poll, 1, delay_msecs)) {
645 case 0:
646 continue;
647 case -1:
648 if (errno == EINTR)
649 continue;
Arnaldo Carvalho de Meloa814c7d2017-02-08 17:01:46 -0300650 __fallthrough;
Arnaldo Carvalho de Melo3af6e332011-10-13 08:52:46 -0300651 default:
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300652 c = getc(stdin);
653 tcsetattr(0, TCSAFLUSH, &save);
654
655 if (perf_top__handle_keypress(top, c))
656 goto repeat;
657 done = 1;
Arnaldo Carvalho de Melo3af6e332011-10-13 08:52:46 -0300658 }
659 }
Ingo Molnar07800602009-04-20 15:00:56 +0200660
Jiri Olsa4a1a9972014-08-11 10:50:07 +0200661 tcsetattr(0, TCSAFLUSH, &save);
Ingo Molnar07800602009-04-20 15:00:56 +0200662 return NULL;
663}
664
Namhyung Kim7c503912014-01-07 17:41:03 +0900665static int hist_iter__top_callback(struct hist_entry_iter *iter,
666 struct addr_location *al, bool single,
667 void *arg)
668{
669 struct perf_top *top = arg;
670 struct hist_entry *he = iter->he;
671 struct perf_evsel *evsel = iter->evsel;
672
Jiri Olsa2e0453a2016-05-03 13:54:44 +0200673 if (perf_hpp_list.sym && single)
Namhyung Kim64226bc2015-12-11 11:56:53 +0900674 perf_top__record_precise_ip(top, he, evsel->idx, al->addr);
Namhyung Kim7c503912014-01-07 17:41:03 +0900675
Andi Kleena18b0272015-07-18 08:24:52 -0700676 hist__account_cycles(iter->sample->branch_stack, al, iter->sample,
677 !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY));
Namhyung Kim7c503912014-01-07 17:41:03 +0900678 return 0;
679}
680
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200681static void perf_event__process_sample(struct perf_tool *tool,
682 const union perf_event *event,
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200683 struct perf_evsel *evsel,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200684 struct perf_sample *sample,
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200685 struct machine *machine)
Ingo Molnar07800602009-04-20 15:00:56 +0200686{
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200687 struct perf_top *top = container_of(tool, struct perf_top, tool);
Arnaldo Carvalho de Melo1ed091c2009-11-27 16:29:23 -0200688 struct addr_location al;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300689 int err;
Ingo Molnar07800602009-04-20 15:00:56 +0200690
Arnaldo Carvalho de Melo23346f22010-04-27 21:17:50 -0300691 if (!machine && perf_guest) {
David Ahern6b118e92012-07-30 22:31:35 -0600692 static struct intlist *seen;
693
694 if (!seen)
Arnaldo Carvalho de Meloffe0fb72013-01-24 16:17:27 -0300695 seen = intlist__new(NULL);
David Ahern6b118e92012-07-30 22:31:35 -0600696
Adrian Hunteref893252013-08-27 11:23:06 +0300697 if (!intlist__has_entry(seen, sample->pid)) {
David Ahern6b118e92012-07-30 22:31:35 -0600698 pr_err("Can't find guest [%d]'s kernel information\n",
Adrian Hunteref893252013-08-27 11:23:06 +0300699 sample->pid);
700 intlist__add(seen, sample->pid);
David Ahern6b118e92012-07-30 22:31:35 -0600701 }
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800702 return;
703 }
704
Joerg Roedel0c095712012-02-10 18:05:04 +0100705 if (!machine) {
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300706 pr_err("%u unprocessable samples recorded.\r",
Arnaldo Carvalho de Melo75be9892015-02-14 14:50:11 -0300707 top->session->evlist->stats.nr_unprocessable_samples++);
Joerg Roedel0c095712012-02-10 18:05:04 +0100708 return;
709 }
710
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200711 if (event->header.misc & PERF_RECORD_MISC_EXACT_IP)
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200712 top->exact_samples++;
Peter Zijlstra1676b8a2010-03-04 14:19:36 +0100713
Arnaldo Carvalho de Melobb3eb562016-03-22 18:39:09 -0300714 if (machine__resolve(machine, &al, sample) < 0)
Arnaldo Carvalho de Melo1ed091c2009-11-27 16:29:23 -0200715 return;
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200716
Arnaldo Carvalho de Meloe77a0742016-05-17 11:58:52 -0300717 if (!machine->kptr_restrict_warned &&
Arnaldo Carvalho de Melo5f6f5582011-05-27 11:53:28 -0300718 symbol_conf.kptr_restrict &&
719 al.cpumode == PERF_RECORD_MISC_KERNEL) {
720 ui__warning(
721"Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n"
722"Check /proc/sys/kernel/kptr_restrict.\n\n"
723"Kernel%s samples will not be resolved.\n",
Wang Nanc6718352015-04-25 07:25:03 +0000724 al.map && !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ?
Arnaldo Carvalho de Melo5f6f5582011-05-27 11:53:28 -0300725 " modules" : "");
726 if (use_browser <= 0)
727 sleep(5);
Arnaldo Carvalho de Meloe77a0742016-05-17 11:58:52 -0300728 machine->kptr_restrict_warned = true;
Arnaldo Carvalho de Melo5f6f5582011-05-27 11:53:28 -0300729 }
730
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200731 if (al.sym == NULL) {
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300732 const char *msg = "Kernel samples will not be resolved.\n";
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200733 /*
734 * As we do lazy loading of symtabs we only will know if the
735 * specified vmlinux file is invalid when we actually have a
736 * hit in kernel space and then try to load it. So if we get
737 * here and there are _no_ symbols in the DSO backing the
738 * kernel map, bail out.
739 *
740 * We may never get here, for instance, if we use -K/
741 * --hide-kernel-symbols, even if the user specifies an
742 * invalid --vmlinux ;-)
743 */
Arnaldo Carvalho de Meloe77a0742016-05-17 11:58:52 -0300744 if (!machine->kptr_restrict_warned && !top->vmlinux_warned &&
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300745 al.map == machine->vmlinux_maps[MAP__FUNCTION] &&
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200746 RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) {
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300747 if (symbol_conf.vmlinux_name) {
Arnaldo Carvalho de Melo18425f12015-03-24 11:49:02 -0300748 char serr[256];
749 dso__strerror_load(al.map->dso, serr, sizeof(serr));
750 ui__warning("The %s file can't be used: %s\n%s",
751 symbol_conf.vmlinux_name, serr, msg);
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300752 } else {
753 ui__warning("A vmlinux file was not found.\n%s",
754 msg);
755 }
756
757 if (use_browser <= 0)
758 sleep(5);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200759 top->vmlinux_warned = true;
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200760 }
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200761 }
762
Arnaldo Carvalho de Melob55cc4e2016-08-30 11:15:59 -0300763 if (al.sym == NULL || !al.sym->idle) {
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300764 struct hists *hists = evsel__hists(evsel);
Namhyung Kim7c503912014-01-07 17:41:03 +0900765 struct hist_entry_iter iter = {
Namhyung Kim063bd932015-05-19 17:04:10 +0900766 .evsel = evsel,
767 .sample = sample,
768 .add_entry_cb = hist_iter__top_callback,
Namhyung Kim7c503912014-01-07 17:41:03 +0900769 };
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200770
Namhyung Kim7c503912014-01-07 17:41:03 +0900771 if (symbol_conf.cumulate_callchain)
772 iter.ops = &hist_iter_cumulative;
773 else
774 iter.ops = &hist_iter_normal;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300775
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300776 pthread_mutex_lock(&hists->lock);
Namhyung Kim7c503912014-01-07 17:41:03 +0900777
Namhyung Kim063bd932015-05-19 17:04:10 +0900778 err = hist_entry_iter__add(&iter, &al, top->max_stack, top);
Namhyung Kim7c503912014-01-07 17:41:03 +0900779 if (err < 0)
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300780 pr_err("Problem incrementing symbol period, skipping event\n");
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300781
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300782 pthread_mutex_unlock(&hists->lock);
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200783 }
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300784
Arnaldo Carvalho de Melob91fc392015-04-06 20:43:22 -0300785 addr_location__put(&al);
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200786}
787
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200788static void perf_top__mmap_read_idx(struct perf_top *top, int idx)
Ingo Molnar07800602009-04-20 15:00:56 +0200789{
Arnaldo Carvalho de Melo8d50e5b2011-01-29 13:02:00 -0200790 struct perf_sample sample;
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200791 struct perf_evsel *evsel;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200792 struct perf_session *session = top->session;
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200793 union perf_event *event;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200794 struct machine *machine;
Frederic Weisbecker5538bec2011-05-22 02:17:22 +0200795 int ret;
Ingo Molnar07800602009-04-20 15:00:56 +0200796
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200797 while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) {
Arnaldo Carvalho de Melo0807d2d2012-09-26 12:48:18 -0300798 ret = perf_evlist__parse_sample(top->evlist, event, &sample);
Frederic Weisbecker5538bec2011-05-22 02:17:22 +0200799 if (ret) {
800 pr_err("Can't parse sample, err = %d\n", ret);
Zhouyi Zhou8e50d382013-10-24 15:43:33 +0800801 goto next_event;
Frederic Weisbecker5538bec2011-05-22 02:17:22 +0200802 }
Arnaldo Carvalho de Melo04391de2011-01-15 10:40:59 -0200803
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200804 evsel = perf_evlist__id2evsel(session->evlist, sample.id);
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200805 assert(evsel != NULL);
806
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200807 if (event->header.type == PERF_RECORD_SAMPLE)
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200808 ++top->samples;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200809
Arnaldo Carvalho de Melo473398a2016-03-22 18:23:43 -0300810 switch (sample.cpumode) {
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200811 case PERF_RECORD_MISC_USER:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200812 ++top->us_samples;
813 if (top->hide_user_symbols)
Zhouyi Zhou8e50d382013-10-24 15:43:33 +0800814 goto next_event;
Arnaldo Carvalho de Melo34ba5122012-12-19 09:04:24 -0300815 machine = &session->machines.host;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200816 break;
817 case PERF_RECORD_MISC_KERNEL:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200818 ++top->kernel_samples;
819 if (top->hide_kernel_symbols)
Zhouyi Zhou8e50d382013-10-24 15:43:33 +0800820 goto next_event;
Arnaldo Carvalho de Melo34ba5122012-12-19 09:04:24 -0300821 machine = &session->machines.host;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200822 break;
823 case PERF_RECORD_MISC_GUEST_KERNEL:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200824 ++top->guest_kernel_samples;
Adrian Hunteref893252013-08-27 11:23:06 +0300825 machine = perf_session__find_machine(session,
826 sample.pid);
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200827 break;
828 case PERF_RECORD_MISC_GUEST_USER:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200829 ++top->guest_us_samples;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200830 /*
831 * TODO: we don't process guest user from host side
832 * except simple counting.
833 */
Zhouyi Zhou8e50d382013-10-24 15:43:33 +0800834 goto next_event;
Namhyung Kim4b37af52015-09-30 10:45:25 +0900835 default:
836 if (event->header.type == PERF_RECORD_SAMPLE)
837 goto next_event;
838 machine = &session->machines.host;
839 break;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200840 }
841
842
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200843 if (event->header.type == PERF_RECORD_SAMPLE) {
844 perf_event__process_sample(&top->tool, event, evsel,
845 &sample, machine);
846 } else if (event->header.type < PERF_RECORD_MAX) {
Arnaldo Carvalho de Melo4ea062ed2014-10-09 13:13:41 -0300847 hists__inc_nr_events(evsel__hists(evsel), event->header.type);
Frederic Weisbecker162f0be2013-09-11 16:18:24 +0200848 machine__process_event(machine, event, &sample);
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200849 } else
Arnaldo Carvalho de Melo75be9892015-02-14 14:50:11 -0300850 ++session->evlist->stats.nr_unknown_events;
Zhouyi Zhou8e50d382013-10-24 15:43:33 +0800851next_event:
852 perf_evlist__mmap_consume(top->evlist, idx);
Ingo Molnar07800602009-04-20 15:00:56 +0200853 }
Ingo Molnar07800602009-04-20 15:00:56 +0200854}
855
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200856static void perf_top__mmap_read(struct perf_top *top)
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200857{
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200858 int i;
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200859
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200860 for (i = 0; i < top->evlist->nr_mmaps; i++)
861 perf_top__mmap_read_idx(top, i);
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200862}
863
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300864static int perf_top__start_counters(struct perf_top *top)
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200865{
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300866 char msg[512];
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200867 struct perf_evsel *counter;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200868 struct perf_evlist *evlist = top->evlist;
Arnaldo Carvalho de Melob4006792013-12-19 14:43:45 -0300869 struct record_opts *opts = &top->record_opts;
Arnaldo Carvalho de Melo727ab042011-10-25 10:42:19 -0200870
Arnaldo Carvalho de Meloe68ae9c2016-04-11 18:15:29 -0300871 perf_evlist__config(evlist, opts, &callchain_param);
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200872
Arnaldo Carvalho de Meloe5cadb92016-06-23 11:26:15 -0300873 evlist__for_each_entry(evlist, counter) {
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200874try_again:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200875 if (perf_evsel__open(counter, top->evlist->cpus,
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200876 top->evlist->threads) < 0) {
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300877 if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) {
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200878 if (verbose)
Arnaldo Carvalho de Meloc0a54342012-12-13 14:16:30 -0300879 ui__warning("%s\n", msg);
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200880 goto try_again;
881 }
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300882
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300883 perf_evsel__open_strerror(counter, &opts->target,
884 errno, msg, sizeof(msg));
885 ui__error("%s\n", msg);
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300886 goto out_err;
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200887 }
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200888 }
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200889
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300890 if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) {
Namhyung Kim3780f482012-05-29 13:22:57 +0900891 ui__error("Failed to mmap with %d (%s)\n",
Arnaldo Carvalho de Meloc8b5f2c2016-07-06 11:56:20 -0300892 errno, str_error_r(errno, msg, sizeof(msg)));
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300893 goto out_err;
894 }
895
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300896 return 0;
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300897
898out_err:
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300899 return -1;
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200900}
901
Arnaldo Carvalho de Meloe3815262016-04-18 12:30:16 -0300902static int callchain_param__setup_sample_type(struct callchain_param *callchain)
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300903{
Jiri Olsa2e0453a2016-05-03 13:54:44 +0200904 if (!perf_hpp_list.sym) {
Arnaldo Carvalho de Meloe3815262016-04-18 12:30:16 -0300905 if (callchain->enabled) {
Namhyung Kim3780f482012-05-29 13:22:57 +0900906 ui__error("Selected -g but \"sym\" not present in --sort/-s.");
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300907 return -EINVAL;
908 }
Arnaldo Carvalho de Meloe3815262016-04-18 12:30:16 -0300909 } else if (callchain->mode != CHAIN_NONE) {
910 if (callchain_register_param(callchain) < 0) {
Namhyung Kim3780f482012-05-29 13:22:57 +0900911 ui__error("Can't register callchain params.\n");
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300912 return -EINVAL;
913 }
914 }
915
916 return 0;
917}
918
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200919static int __cmd_top(struct perf_top *top)
Ingo Molnar716c69f2009-06-07 17:31:52 +0200920{
Mathieu Poirier5d8bb1e2016-09-16 09:50:03 -0600921 char msg[512];
922 struct perf_evsel *pos;
923 struct perf_evsel_config_term *err_term;
924 struct perf_evlist *evlist = top->evlist;
Arnaldo Carvalho de Melob4006792013-12-19 14:43:45 -0300925 struct record_opts *opts = &top->record_opts;
Ingo Molnar716c69f2009-06-07 17:31:52 +0200926 pthread_t thread;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300927 int ret;
Jiri Olsaf5fc1412013-10-15 16:27:32 +0200928
Jiri Olsa6a4d98d2013-10-15 16:27:33 +0200929 top->session = perf_session__new(NULL, false, NULL);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200930 if (top->session == NULL)
Taeung Song52e028342014-09-24 10:33:37 +0900931 return -1;
Ingo Molnar07800602009-04-20 15:00:56 +0200932
Sukadev Bhattiprolu0d3942d2013-05-14 22:56:51 -0700933 if (!objdump_path) {
Arnaldo Carvalho de Meloeebd0bf2015-09-08 15:52:20 -0300934 ret = perf_env__lookup_objdump(&top->session->header.env);
Sukadev Bhattiprolu0d3942d2013-05-14 22:56:51 -0700935 if (ret)
936 goto out_delete;
937 }
938
Arnaldo Carvalho de Meloe3815262016-04-18 12:30:16 -0300939 ret = callchain_param__setup_sample_type(&callchain_param);
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300940 if (ret)
941 goto out_delete;
942
Masami Hiramatsu9d8b1722015-12-09 11:11:23 +0900943 if (perf_session__register_idle_thread(top->session) < 0)
Namhyung Kimc53d1382015-09-30 10:45:26 +0900944 goto out_delete;
945
Arnaldo Carvalho de Meloa33fbd52013-11-11 11:36:12 -0300946 machine__synthesize_threads(&top->session->machines.host, &opts->target,
Kan Liang9d9cad72015-06-17 09:51:11 -0400947 top->evlist->threads, false, opts->proc_map_timeout);
Kan Liang2e7ea3a2015-09-04 10:45:43 -0400948
Jiri Olsa35a634f2016-05-03 13:54:46 +0200949 if (perf_hpp_list.socket) {
Kan Liang2e7ea3a2015-09-04 10:45:43 -0400950 ret = perf_env__read_cpu_topology_map(&perf_env);
951 if (ret < 0)
952 goto out_err_cpu_topo;
953 }
954
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300955 ret = perf_top__start_counters(top);
956 if (ret)
957 goto out_delete;
958
Mathieu Poirier5d8bb1e2016-09-16 09:50:03 -0600959 ret = perf_evlist__apply_drv_configs(evlist, &pos, &err_term);
960 if (ret) {
961 error("failed to set config \"%s\" on event %s with %d (%s)\n",
962 err_term->val.drv_cfg, perf_evsel__name(pos), errno,
963 str_error_r(errno, msg, sizeof(msg)));
964 goto out_delete;
965 }
966
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200967 top->session->evlist = top->evlist;
Arnaldo Carvalho de Melo7b56cce2012-08-01 19:31:00 -0300968 perf_session__set_id_hdr_size(top->session);
Ingo Molnar07800602009-04-20 15:00:56 +0200969
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300970 /*
971 * When perf is starting the traced process, all the events (apart from
972 * group members) have enable_on_exec=1 set, so don't spoil it by
973 * prematurely enabling them.
974 *
975 * XXX 'top' still doesn't start workloads like record, trace, but should,
976 * so leave the check here.
977 */
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -0300978 if (!target__none(&opts->target))
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300979 perf_evlist__enable(top->evlist);
980
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200981 /* Wait for a minimal set of events before starting the snapshot */
Arnaldo Carvalho de Melof66a8892014-08-18 17:25:59 -0300982 perf_evlist__poll(top->evlist, 100);
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200983
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200984 perf_top__mmap_read(top);
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200985
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300986 ret = -1;
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -0200987 if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui :
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200988 display_thread), top)) {
Namhyung Kim3780f482012-05-29 13:22:57 +0900989 ui__error("Could not create display thread.\n");
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300990 goto out_delete;
Ingo Molnar07800602009-04-20 15:00:56 +0200991 }
992
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200993 if (top->realtime_prio) {
Ingo Molnar07800602009-04-20 15:00:56 +0200994 struct sched_param param;
995
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200996 param.sched_priority = top->realtime_prio;
Ingo Molnar07800602009-04-20 15:00:56 +0200997 if (sched_setscheduler(0, SCHED_FIFO, &param)) {
Namhyung Kim3780f482012-05-29 13:22:57 +0900998 ui__error("Could not set realtime priority.\n");
Jiri Olsaae256fa2014-08-11 10:50:05 +0200999 goto out_join;
Ingo Molnar07800602009-04-20 15:00:56 +02001000 }
1001 }
1002
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -03001003 while (!done) {
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001004 u64 hits = top->samples;
Ingo Molnar07800602009-04-20 15:00:56 +02001005
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001006 perf_top__mmap_read(top);
Ingo Molnar07800602009-04-20 15:00:56 +02001007
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001008 if (hits == top->samples)
Arnaldo Carvalho de Melof66a8892014-08-18 17:25:59 -03001009 ret = perf_evlist__poll(top->evlist, 100);
Jiri Olsaa2eca0c2017-11-14 10:23:39 +01001010
1011 if (resize) {
1012 perf_top__resize(top);
1013 resize = 0;
1014 }
Ingo Molnar07800602009-04-20 15:00:56 +02001015 }
1016
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -03001017 ret = 0;
Jiri Olsaae256fa2014-08-11 10:50:05 +02001018out_join:
1019 pthread_join(thread, NULL);
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001020out_delete:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001021 perf_session__delete(top->session);
1022 top->session = NULL;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001023
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -03001024 return ret;
Kan Liang2e7ea3a2015-09-04 10:45:43 -04001025
1026out_err_cpu_topo: {
1027 char errbuf[BUFSIZ];
Arnaldo Carvalho de Meloc8b5f2c2016-07-06 11:56:20 -03001028 const char *err = str_error_r(-ret, errbuf, sizeof(errbuf));
Kan Liang2e7ea3a2015-09-04 10:45:43 -04001029
1030 ui__error("Could not read the CPU topology map: %s\n", err);
1031 goto out_delete;
1032}
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001033}
1034
1035static int
Jiri Olsaae779a62013-10-26 16:25:34 +02001036callchain_opt(const struct option *opt, const char *arg, int unset)
1037{
1038 symbol_conf.use_callchain = true;
1039 return record_callchain_opt(opt, arg, unset);
1040}
1041
1042static int
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001043parse_callchain_opt(const struct option *opt, const char *arg, int unset)
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001044{
Arnaldo Carvalho de Melo2ddd5c02016-04-18 12:09:08 -03001045 struct callchain_param *callchain = opt->value;
Namhyung Kima2c10d32015-10-22 15:28:49 +09001046
Arnaldo Carvalho de Melo2ddd5c02016-04-18 12:09:08 -03001047 callchain->enabled = !unset;
1048 callchain->record_mode = CALLCHAIN_FP;
Namhyung Kima2c10d32015-10-22 15:28:49 +09001049
1050 /*
1051 * --no-call-graph
1052 */
1053 if (unset) {
1054 symbol_conf.use_callchain = false;
Arnaldo Carvalho de Melo2ddd5c02016-04-18 12:09:08 -03001055 callchain->record_mode = CALLCHAIN_NONE;
Namhyung Kima2c10d32015-10-22 15:28:49 +09001056 return 0;
1057 }
1058
1059 return parse_callchain_top_opt(arg);
Ingo Molnar07800602009-04-20 15:00:56 +02001060}
Ingo Molnarb456bae2009-05-26 09:17:18 +02001061
Wang Nanb8cbb342016-02-26 09:31:51 +00001062static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused)
Jiri Olsaeb853e82014-02-03 12:44:42 +01001063{
Yisheng Xief2c9d722018-03-12 19:25:56 +08001064 if (!strcmp(var, "top.call-graph")) {
1065 var = "call-graph.record-mode";
1066 return perf_default_config(var, value, cb);
1067 }
Namhyung Kim104ac992013-01-22 18:09:46 +09001068 if (!strcmp(var, "top.children")) {
1069 symbol_conf.cumulate_callchain = perf_config_bool(var, value);
1070 return 0;
1071 }
Jiri Olsaeb853e82014-02-03 12:44:42 +01001072
Wang Nanb8cbb342016-02-26 09:31:51 +00001073 return 0;
Jiri Olsaeb853e82014-02-03 12:44:42 +01001074}
1075
Namhyung Kimfa5df942013-05-14 11:09:05 +09001076static int
1077parse_percent_limit(const struct option *opt, const char *arg,
1078 int unset __maybe_unused)
1079{
1080 struct perf_top *top = opt->value;
1081
1082 top->min_percent = strtof(arg, NULL);
1083 return 0;
1084}
1085
Namhyung Kim76a26542015-10-22 23:28:32 +09001086const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP
1087 "\n\t\t\t\tDefault: fp,graph,0.5,caller,function";
Namhyung Kima2c10d32015-10-22 15:28:49 +09001088
Irina Tirdea1d037ca2012-09-11 01:15:03 +03001089int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001090{
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001091 char errbuf[BUFSIZ];
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001092 struct perf_top top = {
1093 .count_filter = 5,
1094 .delay_secs = 2,
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001095 .record_opts = {
1096 .mmap_pages = UINT_MAX,
1097 .user_freq = UINT_MAX,
1098 .user_interval = ULLONG_MAX,
1099 .freq = 4000, /* 4 KHz */
Waiman Long5dbb6e82013-10-18 10:38:49 -04001100 .target = {
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001101 .uses_mmap = true,
1102 },
Kan Liang9d9cad72015-06-17 09:51:11 -04001103 .proc_map_timeout = 500,
Namhyung Kimd1cb9fc2012-05-16 18:45:49 +09001104 },
Arnaldo Carvalho de Melo4cb93442016-04-27 10:16:24 -03001105 .max_stack = sysctl_perf_event_max_stack,
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001106 .sym_pcnt_filter = 5,
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001107 };
Arnaldo Carvalho de Melob4006792013-12-19 14:43:45 -03001108 struct record_opts *opts = &top.record_opts;
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001109 struct target *target = &opts->target;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001110 const struct option options[] = {
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001111 OPT_CALLBACK('e', "event", &top.evlist, "event",
Thomas Gleixner86847b62009-06-06 12:24:17 +02001112 "event selector. use 'perf list' to list available events",
Jiri Olsaf120f9d2011-07-14 11:25:32 +02001113 parse_events_option),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001114 OPT_U64('c', "count", &opts->user_interval, "event period to sample"),
1115 OPT_STRING('p', "pid", &target->pid, "pid",
Zhang, Yanmind6d901c2010-03-18 11:36:05 -03001116 "profile events on existing process id"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001117 OPT_STRING('t', "tid", &target->tid, "tid",
Zhang, Yanmind6d901c2010-03-18 11:36:05 -03001118 "profile events on existing thread id"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001119 OPT_BOOLEAN('a', "all-cpus", &target->system_wide,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001120 "system-wide collection from all CPUs"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001121 OPT_STRING('C', "cpu", &target->cpu_list, "cpu",
Stephane Eranianc45c6ea2010-05-28 12:00:01 +02001122 "list of cpus to monitor"),
Arnaldo Carvalho de Melob32d1332009-11-24 12:05:15 -02001123 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1124 "file", "vmlinux pathname"),
Willy Tarreaufc2be692013-09-14 10:32:59 +02001125 OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux,
1126 "don't load vmlinux even if found"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001127 OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols,
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -02001128 "hide kernel symbols"),
Jiri Olsa994a1f72013-09-01 12:36:12 +02001129 OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages",
1130 "number of mmap data pages",
1131 perf_evlist__parse_mmap_pages),
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001132 OPT_INTEGER('r', "realtime", &top.realtime_prio,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001133 "collect data with this RT SCHED_FIFO priority"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001134 OPT_INTEGER('d', "delay", &top.delay_secs,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001135 "number of seconds to delay between refreshes"),
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001136 OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001137 "dump the symbol table used for profiling"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001138 OPT_INTEGER('f', "count-filter", &top.count_filter,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001139 "only display functions with more events than this"),
David Ahernbf806692013-11-14 20:51:30 -07001140 OPT_BOOLEAN(0, "group", &opts->group,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001141 "put the counters into a counter group"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001142 OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit,
1143 "child tasks do not inherit counters"),
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001144 OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name",
Kirill Smelkov6cff0e82010-02-03 16:52:08 -02001145 "symbol to annotate"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001146 OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"),
1147 OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001148 OPT_INTEGER('E', "entries", &top.print_entries,
Ingo Molnar6e53cdf2009-06-04 08:53:05 +02001149 "display this many functions"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001150 OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols,
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -02001151 "hide user symbols"),
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001152 OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"),
1153 OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"),
Ian Munsiec0555642010-04-13 18:37:33 +10001154 OPT_INCR('v', "verbose", &verbose,
Ingo Molnar3da297a2009-06-07 17:39:02 +02001155 "be more verbose (show counter open errors, etc)"),
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03001156 OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
Namhyung Kima2ce0672014-03-04 09:06:42 +09001157 "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..."
1158 " Please refer the man page for the complete list."),
Namhyung Kim6fe8c262014-03-04 11:01:41 +09001159 OPT_STRING(0, "fields", &field_order, "key[,keys...]",
1160 "output field(s): overhead, period, sample plus all of sort keys"),
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03001161 OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
1162 "Show a column with the number of samples"),
Arnaldo Carvalho de Melo2ddd5c02016-04-18 12:09:08 -03001163 OPT_CALLBACK_NOOPT('g', NULL, &callchain_param,
Namhyung Kima2c10d32015-10-22 15:28:49 +09001164 NULL, "enables call-graph recording and display",
Jiri Olsaae779a62013-10-26 16:25:34 +02001165 &callchain_opt),
Arnaldo Carvalho de Melo2ddd5c02016-04-18 12:09:08 -03001166 OPT_CALLBACK(0, "call-graph", &callchain_param,
Namhyung Kim76a26542015-10-22 23:28:32 +09001167 "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]",
Namhyung Kima2c10d32015-10-22 15:28:49 +09001168 top_callchain_help, &parse_callchain_opt),
Namhyung Kim1432ec32013-10-30 17:05:55 +09001169 OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain,
1170 "Accumulate callchains of children and show total overhead as well"),
Waiman Long5dbb6e82013-10-18 10:38:49 -04001171 OPT_INTEGER(0, "max-stack", &top.max_stack,
1172 "Set the maximum stack depth when parsing the callchain. "
Arnaldo Carvalho de Melo4cb93442016-04-27 10:16:24 -03001173 "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)),
Greg Priceb21484f2012-12-06 21:48:05 -08001174 OPT_CALLBACK(0, "ignore-callees", NULL, "regex",
1175 "ignore callees of these functions in call graphs",
1176 report_parse_ignore_callees_opt),
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03001177 OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
1178 "Show a column with the sum of periods"),
1179 OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
1180 "only consider symbols in these dsos"),
1181 OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
1182 "only consider symbols in these comms"),
1183 OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
1184 "only consider these symbols"),
Arnaldo Carvalho de Melo64c6f0c2011-10-06 12:48:31 -03001185 OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src,
1186 "Interleave source code with assembly code (default)"),
1187 OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw,
1188 "Display raw encoding of assembly instructions (default)"),
Avi Kivity763122a2014-09-13 07:15:05 +03001189 OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel,
1190 "Enable kernel symbol demangling"),
Sukadev Bhattiprolu0d3942d2013-05-14 22:56:51 -07001191 OPT_STRING(0, "objdump", &objdump_path, "path",
1192 "objdump binary to use for disassembly and annotations"),
Arnaldo Carvalho de Melo64c6f0c2011-10-06 12:48:31 -03001193 OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
1194 "Specify disassembler style (e.g. -M intel for intel syntax)"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001195 OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"),
Namhyung Kimfa5df942013-05-14 11:09:05 +09001196 OPT_CALLBACK(0, "percent-limit", &top, "percent",
1197 "Don't show entries under that percent", parse_percent_limit),
Namhyung Kim33db4562014-02-07 12:06:07 +09001198 OPT_CALLBACK(0, "percentage", NULL, "relative|absolute",
1199 "How to display percentage of filtered entries", parse_filter_percentage),
Namhyung Kimcf590022014-07-31 14:47:39 +09001200 OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str,
1201 "width[,width...]",
1202 "don't try to adjust column width, use these fixed values"),
Kan Liang9d9cad72015-06-17 09:51:11 -04001203 OPT_UINTEGER(0, "proc-map-timeout", &opts->proc_map_timeout,
1204 "per thread proc mmap processing timeout in ms"),
Andi Kleena18b0272015-07-18 08:24:52 -07001205 OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack,
1206 "branch any", "sample any taken branches",
1207 parse_branch_stack),
1208 OPT_CALLBACK('j', "branch-filter", &opts->branch_stack,
1209 "branch filter mask", "branch stack filter modes",
1210 parse_branch_stack),
Namhyung Kim053a3982015-12-23 02:07:05 +09001211 OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace,
1212 "Show raw trace event output (do not use print fmt or plugins)"),
Namhyung Kimc92fcfd2016-02-25 00:13:50 +09001213 OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy,
1214 "Show entries in a hierarchy"),
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 Kimc92fcfd2016-02-25 00:13:50 +09001242 if (symbol_conf.report_hierarchy) {
1243 /* disable incompatible options */
1244 symbol_conf.event_group = false;
1245 symbol_conf.cumulate_callchain = false;
1246
1247 if (field_order) {
1248 pr_err("Error: --hierarchy and --fields options cannot be used together\n");
1249 parse_options_usage(top_usage, options, "fields", 0);
1250 parse_options_usage(NULL, options, "hierarchy", 0);
1251 goto out_delete_evlist;
1252 }
1253 }
1254
Namhyung Kim512ae1b2014-03-18 11:31:39 +09001255 sort__mode = SORT_MODE__TOP;
Namhyung Kim3a5714f2013-05-14 11:09:01 +09001256 /* display thread wants entries to be collapsed in a different tree */
Jiri Olsa52225032016-05-03 13:54:42 +02001257 perf_hpp_list.need_collapse = 1;
Namhyung Kim3a5714f2013-05-14 11:09:01 +09001258
Arnaldo Carvalho de Melo3ee60c32016-01-18 10:24:06 +01001259 if (top.use_stdio)
1260 use_browser = 0;
1261 else if (top.use_tui)
1262 use_browser = 1;
1263
1264 setup_browser(false);
1265
Namhyung Kim40184c42015-12-23 02:07:01 +09001266 if (setup_sorting(top.evlist) < 0) {
Namhyung Kim6fe8c262014-03-04 11:01:41 +09001267 if (sort_order)
1268 parse_options_usage(top_usage, options, "s", 1);
1269 if (field_order)
1270 parse_options_usage(sort_order ? NULL : top_usage,
1271 options, "fields", 0);
1272 goto out_delete_evlist;
1273 }
Namhyung Kim22af9692014-04-16 11:04:51 +09001274
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001275 status = target__validate(target);
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001276 if (status) {
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001277 target__strerror(target, status, errbuf, BUFSIZ);
Ingo Molnarea432a82013-11-13 00:26:09 +01001278 ui__warning("%s\n", errbuf);
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001279 }
Namhyung Kim4bd0f2d2012-04-26 14:15:18 +09001280
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001281 status = target__parse_uid(target);
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001282 if (status) {
1283 int saved_errno = errno;
1284
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001285 target__strerror(target, status, errbuf, BUFSIZ);
Ingo Molnarea432a82013-11-13 00:26:09 +01001286 ui__error("%s\n", errbuf);
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001287
1288 status = -saved_errno;
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -02001289 goto out_delete_evlist;
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001290 }
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -02001291
Arnaldo Carvalho de Melo602ad872013-11-12 16:46:16 -03001292 if (target__none(target))
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001293 target->system_wide = true;
Arnaldo Carvalho de Melo10b47d52012-05-07 16:33:56 -03001294
Arnaldo Carvalho de Melof8a5c0b2015-12-10 14:48:45 -03001295 if (perf_evlist__create_maps(top.evlist, target) < 0) {
1296 ui__error("Couldn't create thread/CPU maps: %s\n",
Arnaldo Carvalho de Meloc8b5f2c2016-07-06 11:56:20 -03001297 errno == ENOENT ? "No such process" : str_error_r(errno, errbuf, sizeof(errbuf)));
Arnaldo Carvalho de Melof8a5c0b2015-12-10 14:48:45 -03001298 goto out_delete_evlist;
1299 }
Arnaldo Carvalho de Melo7e2ed092011-01-30 11:59:43 -02001300
Arnaldo Carvalho de Melod04b35f2011-11-11 22:17:32 -02001301 symbol_conf.nr_events = top.evlist->nr_entries;
1302
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001303 if (top.delay_secs < 1)
1304 top.delay_secs = 1;
Frederic Weisbecker2f335a02009-06-05 19:31:01 +02001305
Arnaldo Carvalho de Melob4006792013-12-19 14:43:45 -03001306 if (record_opts__config(opts)) {
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001307 status = -EINVAL;
Arnaldo Carvalho de Melo03ad9742014-01-03 15:56:06 -03001308 goto out_delete_evlist;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001309 }
1310
Arnaldo Carvalho de Melo0c21f732012-08-14 16:42:15 -03001311 top.sym_evsel = perf_evlist__first(top.evlist);
Arnaldo Carvalho de Melocc841582011-01-11 15:16:52 -02001312
Arnaldo Carvalho de Meloe3815262016-04-18 12:30:16 -03001313 if (!callchain_param.enabled) {
Namhyung Kim1432ec32013-10-30 17:05:55 +09001314 symbol_conf.cumulate_callchain = false;
1315 perf_hpp__cancel_cumulate();
1316 }
1317
Namhyung Kim792aeaf2015-10-22 16:45:46 +09001318 if (symbol_conf.cumulate_callchain && !callchain_param.order_set)
1319 callchain_param.order = ORDER_CALLER;
1320
Arnaldo Carvalho de Melob01141f2016-08-25 16:09:21 -03001321 status = symbol__annotation_init();
1322 if (status < 0)
1323 goto out_delete_evlist;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001324
1325 symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL);
Namhyung Kim0a7e6d12014-08-12 15:40:45 +09001326 if (symbol__init(NULL) < 0)
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001327 return -1;
1328
Namhyung Kim08e71542013-04-03 21:26:19 +09001329 sort__setup_elide(stdout);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03001330
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001331 get_term_dimensions(&top.winsize);
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001332 if (top.print_entries == 0) {
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001333 struct sigaction act = {
1334 .sa_sigaction = perf_top__sig_winch,
1335 .sa_flags = SA_SIGINFO,
1336 };
1337 perf_top__update_print_entries(&top);
1338 sigaction(SIGWINCH, &act, NULL);
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -02001339 }
1340
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001341 status = __cmd_top(&top);
Arnaldo Carvalho de Melo806fb632011-11-29 08:05:52 -02001342
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -02001343out_delete_evlist:
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001344 perf_evlist__delete(top.evlist);
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001345
1346 return status;
Ingo Molnarb456bae2009-05-26 09:17:18 +02001347}